samsung update 1

23 files changed, 18188 insertions, 25 deletions

diff --git a/drivers/power/Kconfig b/drivers/power/Kconfig
index e57b50b..9474894 100644
--- a/drivers/power/Kconfig
+++ b/drivers/power/Kconfig
@@ -177,7 +177,7 @@ config BATTERY_S3C_ADC
 	tristate "Battery driver for Samsung ADC based monitoring"
 	depends on S3C_ADC
 	help
-	  Say Y here to enable support for iPAQ h1930/h1940/rx1950 battery
+	  Say Y to enable support for batteries with samsung chip.
 
 config CHARGER_PCF50633
 	tristate "NXP PCF50633 MBC"
@@ -235,4 +235,123 @@ config CHARGER_GPIO
 	  This driver can be build as a module. If so, the module will be
 	  called gpio-charger.
 
+config BATTERY_SAMSUNG
+	tristate "Fake battery driver for samsung smdk boards"
+	depends on PLAT_SAMSUNG
+	help
+	  Say Y to enable support for batteries with samsung chip.
+
+config BATTERY_SAMSUNG_S2PLUS
+	tristate "Fake battery driver for samsung s2plus boards"
+	depends on PLAT_SAMSUNG
+	help
+	  Say Y to enable support for batteries with s2plus board.
+
+config CHARGER_MAX8997
+	tristate "Maxim MAX8997/MAX8966 PMIC battery charger driver"
+	depends on MFD_MAX8997 && REGULATOR_MAX8997
+	help
+	  Say Y to enable support for the battery charger control sysfs and
+	  platform data of MAX8997/LP3974 PMICs.
+
+config CHARGER_MAX8997_U1
+	tristate "Maxim MAX8997/MAX8966 PMIC battery charger driver for Samsung Galaxy S2 ICS upgrade"
+	depends on MFD_MAX8997 && REGULATOR_MAX8997
+	help
+	  Say Y to enable support for the battery charger control sysfs and
+	  platform data of MAX8997/LP3974 PMICs.
+
+config CHARGER_MAX8997_PX
+	tristate "Maxim MAX8997/MAX8966 PMIC battery charger driver for Samsung Galaxy Tab ICS upgrade"
+	depends on MFD_MAX8997 && REGULATOR_MAX8997
+
+config BATTERY_SEC_U1
+	tristate "Battery driver for Samsung Galaxy S2"
+	depends on PLAT_SAMSUNG
+	help
+	  Say Y to enable support for batteries with samsung chip.
+
+config BATTERY_SEC_PX
+	tristate "Battery driver for Samsung Galaxy Tab"
+	depends on PLAT_SAMSUNG
+
+config CHARGER_MAX8922_U1
+	tristate "MAX8922 battery charger support for Samsung Galaxy S2 ICS upgrade"
+	depends on PLAT_SAMSUNG
+	help
+	  Say Y here to enable support for the battery charger in the Maxim
+	  MAX8922 Charger IC.
+
+config CHARGER_MAX8922_S2PLUS
+	tristate "MAX8922 battery charger support for Samsung Galaxy S2 ICS upgrade"
+	depends on PLAT_SAMSUNG
+	default n
+	help
+	  Say Y here to enable support for the battery charger in the Maxim
+	  MAX8922 Charger IC.
+
+config BATTERY_MAX17042_FUELGAUGE_U1
+	tristate "Maxim MAX17042/8997/8966 Fuel Gauge for Samsung Galaxy S2 ICS upgrade"
+	depends on I2C
+	help
+	  MAX17042 is fuel-gauge systems for lithium-ion (Li+) batteries
+	  in handheld and portable equipment. The MAX17042 is configured
+	  to operate with a single lithium cell. MAX8997 and MAX8966 are
+	  multi-function devices that include fuel gauages that are compatible
+	  with MAX17042.
+
+config BATTERY_MAX17042_FUELGAUGE_PX
+	tristate "Maxim MAX17042/8997/8966 Fuel Gauge for Samsung Galaxy Tab ICS upgrade"
+	depends on I2C
+	help
+	  MAX17042 is fuel-gauge systems for lithium-ion (Li+) batteries
+	  in handheld and portable equipment. The MAX17042 is configured
+	  to operate with a single lithium cell. MAX8997 and MAX8966 are
+	  multi-function devices that include fuel gauages that are compatible
+	  with MAX17042.
+
+config SMB136_CHARGER
+	tristate "SMB136 battery charger support"
+	depends on PLAT_SAMSUNG
+	help
+	  Say Y here to enable support for the battery charger in the SUMMIT
+	  SMB136 Charger IC.
+
+config SMB136_CHARGER_Q1
+	tristate "SMB136 battery charger support Q1 HWREV01"
+	depends on PLAT_SAMSUNG
+	help
+	  Say Y here to enable support for the battery charger in the SUMMIT
+	  SMB136 Charger IC.
+	  Support Q1 HWREV01.
+
+config SMB328_CHARGER
+	tristate "SMB328 battery charger support"
+	depends on PLAT_SAMSUNG
+	help
+	  Say Y here to enable support for the battery charger in the SUMMIT
+	  SMB328 Charger IC.
+
+config SMB347_CHARGER
+	tristate "SMB347 battery charger support"
+	depends on PLAT_SAMSUNG
+	help
+	  Say Y here to enable support for the battery charger in the SUMMIT
+	  SMB328 Charger IC.
+
+config CHARGER_MANAGER
+	tristate "Battery charger manager for multiple chargers"
+	help
+	  Say Y to enable charger-manager support, which allows multiple
+	  chargers attached to a battery and multiple batteries attached to a
+	  system. The charger-manager also can monitor charging status in
+	  runtime and in suspend-to-RAM by waking up the system periodically
+	  with help of pm-loop support.
+
+config SAMSUNG_LPM_MODE
+	bool "Off charging mode support in sec battery driver"
+	depends on BATTERY_SEC_PX
+	help
+	 Say Y to include support for samsungs off charging support
+
 endif # POWER_SUPPLY
diff --git a/drivers/power/Makefile b/drivers/power/Makefile
index 009a90f..9be94fd 100644
--- a/drivers/power/Makefile
+++ b/drivers/power/Makefile
@@ -36,3 +36,25 @@ obj-$(CONFIG_CHARGER_ISP1704)	+= isp1704_charger.o
 obj-$(CONFIG_CHARGER_MAX8903)	+= max8903_charger.o
 obj-$(CONFIG_CHARGER_TWL4030)	+= twl4030_charger.o
 obj-$(CONFIG_CHARGER_GPIO)	+= gpio-charger.o
+obj-$(CONFIG_BATTERY_SAMSUNG)	+= samsung_fake_battery.o
+obj-$(CONFIG_BATTERY_SAMSUNG_S2PLUS)	+= samsung_fake_battery.o
+obj-$(CONFIG_CHARGER_MAX8997)	+= max8997_charger.o
+obj-$(CONFIG_CHARGER_MAX8997_U1)	+= max8997_charger_u1.o
+obj-$(CONFIG_CHARGER_MAX8922_U1)	+= max8922_charger_u1.o
+obj-$(CONFIG_CHARGER_MAX8922_S2PLUS)	+= max8922_charger_s2plus.o
+obj-$(CONFIG_CHARGER_MAX8997_PX)	+= max8997_charger_px.o
+ifeq ($(CONFIG_TARGET_LOCALE_KOR),y)
+obj-$(CONFIG_BATTERY_SEC_U1)	+= sec_battery_u1_kor.o
+obj-$(CONFIG_BATTERY_MAX17042_FUELGAUGE_U1)	+= max17042_fuelgauge_u1_kor.o
+else
+obj-$(CONFIG_BATTERY_SEC_U1)	+= sec_battery_u1.o
+obj-$(CONFIG_BATTERY_MAX17042_FUELGAUGE_U1)	+= max17042_fuelgauge_u1.o
+endif
+obj-$(CONFIG_BATTERY_SEC_PX)	+= sec_battery_px.o
+obj-$(CONFIG_BATTERY_MAX17042_FUELGAUGE_PX)	+= max17042_fuelgauge_px.o
+obj-$(CONFIG_CHARGER_MANAGER)	+= charger-manager.o
+obj-$(CONFIG_SMB136_CHARGER)	+= smb136_charger.o
+obj-$(CONFIG_SMB136_CHARGER_Q1)	+= smb136_charger_q1.o
+obj-$(CONFIG_SMB328_CHARGER)	+= smb328_charger.o
+obj-$(CONFIG_SMB347_CHARGER)	+= smb347_charger.o
+
diff --git a/drivers/power/charger-manager.c b/drivers/power/charger-manager.c
new file mode 100644
index 0000000..5dfbf60
--- /dev/null
+++ b/drivers/power/charger-manager.c
@@ -0,0 +1,1662 @@
+/* linux/drivers/power/charger-manager.c
+ *
+ * Copyright (C) 2011 Samsung Electronics Co., Ltd.
+ * MyungJoo Ham <myungjoo.ham@samsung.com>
+ *
+ * Samsung SoC based charger control. This driver enables to control
+ * charger during suspend-to-mem.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+**/
+
+#include <linux/io.h>
+#include <linux/irq.h>
+#include <linux/interrupt.h>
+#include <linux/rtc.h>
+#include <linux/slab.h>
+#include <linux/workqueue.h>
+#include <linux/platform_device.h>
+#include <linux/power/charger-manager.h>
+#include <linux/regulator/consumer.h>
+#include <linux/jack.h>
+
+static const char * const default_event_names[] = {
+	[CM_EVENT_UNDESCRIBED] = "Undescribed",
+	[CM_EVENT_BATT_FULL] = "Battery Full",
+	[CM_EVENT_BATT_IN] = "Battery Inserted",
+	[CM_EVENT_BATT_OUT] = "Battery Pulled Out",
+	[CM_EVENT_EXT_PWR_IN_OUT] = "External Power Attach/Detach",
+	[CM_EVENT_CHG_START_STOP] = "Charging Start/Stop",
+	[CM_EVENT_OTHERS] = "Other battery events"
+};
+
+/*
+ * Regard CM_JIFFIES_SMALL jiffies is small enough to ignore for
+ * delayed works so that we can run delayed works with CM_JIFFIES_SMALL
+ * without any delays.
+ */
+#define	CM_JIFFIES_SMALL	(2)
+
+/* If y is valid (> 0) and smaller than x, do x = y */
+#define CM_MIN_VALID(x, y)	x = (((y > 0) && ((x) > (y))) ? (y) : (x))
+
+/*
+ * Regard CM_RTC_SMALL (sec) is small enough to ignore error in invoking
+ * rtc alarm. It should be 2 or larger
+ */
+#define CM_RTC_SMALL		(2)
+
+#define UEVENT_BUF_SIZE		32
+
+LIST_HEAD(cm_list);
+static DEFINE_MUTEX(cm_list_mtx);
+
+static int charger_get_property(struct power_supply *psy,
+		enum power_supply_property psp,
+		union power_supply_propval *val);
+static void fullbatt_handler(struct charger_manager *cm);
+
+/* About in-suspend (suspend-again) monitoring */
+static struct rtc_device *rtc_dev;
+static struct rtc_wkalrm rtc_wkalarm_save; /* Backup RTC alarm */
+static unsigned long rtc_wkalarm_save_; /* 0 if not available */
+static bool cm_suspended;
+static bool cm_rtc_set;
+static unsigned long cm_suspend_duration_ms;
+
+/* About normal (not suspended) monitoring */
+static unsigned long polling_jiffy = ULONG_MAX; /* ULONG_MAX: no polling */
+static unsigned long next_polling; /* Next appointed polling time */
+static struct workqueue_struct *cm_wq; /* init at driver add */
+static struct delayed_work cm_monitor_work; /* init at driver add */
+
+/* Global charger-manager description */
+static struct charger_global_desc *g_desc; /* init with setup_charger_manager */
+
+static int is_full(struct charger_manager *cm)
+{
+	union power_supply_propval val;
+	int ret = 0;
+
+	ret = charger_get_property(&cm->charger_psy,
+			POWER_SUPPLY_PROP_STATUS, &val);
+
+	if (!ret && val.intval == POWER_SUPPLY_STATUS_NOT_CHARGING) {
+		ret = charger_get_property(&cm->charger_psy,
+			POWER_SUPPLY_PROP_CHARGE_FULL, &val);
+		if (!ret && val.intval) {
+			printk(KERN_DEBUG"[CM %s:%d fully Charged.\n",
+				__func__, __LINE__);
+			fullbatt_handler(cm);
+		}
+	}
+
+	return 0;
+}
+
+/**
+ * is_batt_present - See if the battery presents in place.
+ * @cm: the Charger Manager representing the battery.
+ */
+static bool is_batt_present(struct charger_manager *cm)
+{
+	union power_supply_propval val;
+	bool present = false;
+	int i, ret;
+
+	switch (cm->desc->battery_present) {
+	case CM_ASSUME_ALWAYS_TRUE:
+		present = true;
+		break;
+	case CM_ASSUME_ALWAYS_FALSE:
+		present = false;
+		break;
+	case CM_FUEL_GAUGE:
+		ret = cm->fuel_gauge->get_property(cm->fuel_gauge,
+				POWER_SUPPLY_PROP_PRESENT, &val);
+		if (ret == 0 && val.intval)
+			present = true;
+		break;
+	case CM_CHARGER_STAT:
+		val.intval = 0;
+		/* If one of them thinks it exists, it exists. */
+		for (i = 0; cm->charger_stat[i]; i++) {
+			ret = cm->charger_stat[i]->get_property(
+					cm->charger_stat[i],
+					POWER_SUPPLY_PROP_PRESENT, &val);
+			if (ret == 0 && val.intval) {
+				present = true;
+				break;
+			}
+		}
+		break;
+	}
+
+	return present;
+}
+
+/**
+ * is_ext_pwr_online - See if an external power source is attached to charge
+ * @cm: the Charger Manager representing the battery.
+ *
+ * Returns true if at least one of the chargers of the battery has an external
+ * power source attached to charge the battery regardless of whether it is
+ * actually charging or not.
+ */
+static bool is_ext_pwr_online(struct charger_manager *cm)
+{
+	union power_supply_propval val;
+	bool online = false;
+	int i, ret;
+
+	/* If at least one of them has one, it's yes. */
+	for (i = 0; cm->charger_stat[i]; i++) {
+		ret = cm->charger_stat[i]->get_property(
+				cm->charger_stat[i],
+				POWER_SUPPLY_PROP_ONLINE, &val);
+		if (ret == 0 && val.intval) {
+			online = true;
+			break;
+		}
+	}
+
+	return online;
+}
+
+/**
+ * get_batt_uV - Get the voltage level of the battery
+ * @cm: the Charger Manager representing the battery.
+ * @uV: the voltage level returned.
+ *
+ * Returns 0 if there is no error.
+ * Returns a negative value on error.
+ */
+static int get_batt_uV(struct charger_manager *cm, int *uV)
+{
+	union power_supply_propval val;
+	int ret;
+
+	if (cm->fuel_gauge)
+		ret = cm->fuel_gauge->get_property(cm->fuel_gauge,
+				POWER_SUPPLY_PROP_VOLTAGE_NOW, &val);
+	else
+		return -ENODEV;
+
+	if (ret)
+		return ret;
+
+	*uV = (val.intval > cm->desc->fullbatt_uV) ?
+		cm->desc->fullbatt_uV : val.intval;
+	return 0;
+}
+
+/**
+ * is_charging - Returns true if the battery is being charged.
+ * @cm: the Charger Manager representing the battery.
+ */
+static bool is_charging(struct charger_manager *cm)
+{
+	int i, ret;
+	bool charging = false;
+	union power_supply_propval val;
+	static bool present_warned;
+	bool warned = false;
+
+	/* If there is no battery, it cannot be charged */
+	if (!is_batt_present(cm))
+		return false;
+
+	/* If at least one of the charger is charging, return yes */
+	for (i = 0; cm->charger_stat[i]; i++) {
+		/* 1. The charger sholuld not be DISABLED */
+		if (cm->emergency_stop)
+			continue;
+		if (cm->user_prohibit)
+			continue;
+		if (!cm->charger_enabled)
+			continue;
+
+		/* 2. The charger should be online (ext-power) */
+		ret = cm->charger_stat[i]->get_property(
+				cm->charger_stat[i],
+				POWER_SUPPLY_PROP_ONLINE, &val);
+		if (ret) {
+			dev_warn(cm->dev, "Cannot read ONLINE value from %s.\n",
+					cm->desc->psy_charger_stat[i]);
+			continue;
+		}
+		if (val.intval == 0)
+			continue;
+
+		/* 3. The charger should have the battery connected */
+		ret = cm->charger_stat[i]->get_property(
+				cm->charger_stat[i],
+				POWER_SUPPLY_PROP_PRESENT, &val);
+		/* PRESENT is optional. assume it's "yes" */
+		if (ret && !present_warned) {
+			dev_warn(cm->dev, "Cannot read PRESENT value from %s"
+					".\n", cm->desc->psy_charger_stat[i]);
+			warned = true;
+		} else if (!ret && val.intval == 0)
+			continue;
+
+		/*
+		 * 4. The charger should not be FULL, DISCHARGING,
+		 * or NOT_CHARGING.
+		 */
+		ret = cm->charger_stat[i]->get_property(
+				cm->charger_stat[i],
+				POWER_SUPPLY_PROP_STATUS, &val);
+		if (ret) {
+			dev_warn(cm->dev, "Cannot read STATUS value from %s.\n",
+					cm->desc->psy_charger_stat[i]);
+			continue;
+		}
+		if (val.intval == POWER_SUPPLY_STATUS_FULL ||
+				val.intval == POWER_SUPPLY_STATUS_DISCHARGING ||
+				val.intval == POWER_SUPPLY_STATUS_NOT_CHARGING)
+			continue;
+
+		/* Then, this is charging. */
+		charging = true;
+		break;
+	}
+
+	if (warned)
+		present_warned = true;
+
+	return charging;
+}
+
+/**
+ * try_charger_enable - Enable/Disable chargers altogether
+ * @cm: the Charger Manager representing the battery.
+ * @enable: true: enable / false: force_disable
+ *
+ * Note that Charger Manager keeps the charger enabled regardless whether
+ * the charger is charging or not (because battery is full or no external
+ * power source exists) except when CM needs to disable chargers forcibly
+ * bacause of emergency causes; when the battery is overheated of too cold.
+ */
+static int try_charger_enable(struct charger_manager *cm, bool enable)
+{
+	int i;
+	int err = 0;
+	struct charger_desc *desc = cm->desc;
+
+	printk(KERN_INFO"[CM] %s:%d status:%d", __func__, __LINE__, enable);
+
+	/* Ignore if it's redundent command */
+	if (enable && cm->charger_enabled)
+		return 0;
+	if (!enable && !cm->charger_enabled)
+		return 0;
+
+	if (enable) {
+		if (cm->emergency_stop || cm->user_prohibit)
+			return -EAGAIN; /* Do it again later */
+		for (i = 0 ; i < desc->num_charger_regulators ; i++)
+			regulator_enable(desc->charger_regulators[i].consumer);
+	} else {
+		for (i = 0 ; i < desc->num_charger_regulators ; i++) {
+			regulator_force_disable(
+					desc->charger_regulators[i].consumer);
+		}
+	}
+
+	if (!err)
+		cm->charger_enabled = enable;
+
+	return err;
+}
+
+/**
+ * try_charger_restart - Restart charging.
+ * @cm: the Charger Manager representing the battery.
+ *
+ * Restart charging by turning off and on the charger.
+ */
+static int try_charger_restart(struct charger_manager *cm)
+{
+	int err;
+
+	if (cm->emergency_stop)
+		return -EAGAIN;
+	if (cm->user_prohibit)
+		return -EAGAIN;
+
+	err = try_charger_enable(cm, false);
+	if (err)
+		return err;
+
+	return try_charger_enable(cm, true);
+}
+
+/**
+ * uevent_notify - Let users know something has changed.
+ * @cm: the Charger Manager representing the battery.
+ * @event: the event string.
+ *
+ * If @event is null, it implies that uevent_notify is called
+ * by resume function. When called in the resume function, cm_suspended
+ * should be already reset to false in order to let uevent_notify
+ * notify the recent event during the suspend to users. While
+ * suspended, uevent_notify does not notify users, but tracks
+ * events so that uevent_notify can notify users later after resumed.
+ */
+static void uevent_notify(struct charger_manager *cm, const char *event)
+{
+	static char env_str[UEVENT_BUF_SIZE + 1] = "";
+	static char env_str_save[UEVENT_BUF_SIZE + 1] = "";
+
+	if (cm_suspended) {
+		/* Nothing in suspended-event buffer */
+		if (env_str_save[0] == 0) {
+			if (!strncmp(env_str, event, UEVENT_BUF_SIZE))
+				return; /* status not changed */
+			strncpy(env_str_save, event, UEVENT_BUF_SIZE);
+			return;
+		}
+
+		if (!strncmp(env_str_save, event, UEVENT_BUF_SIZE))
+			return; /* Duplicated. */
+		else
+			strncpy(env_str_save, event, UEVENT_BUF_SIZE);
+
+		return;
+	}
+
+	/* It's called at RESUME */
+	if (event == NULL) {
+		/* No messages pending */
+		if (!env_str_save[0])
+			return;
+
+		strncpy(env_str, env_str_save, UEVENT_BUF_SIZE);
+		kobject_uevent(&cm->dev->kobj, KOBJ_CHANGE);
+		env_str_save[0] = 0;
+
+		return;
+	}
+
+	/* The system is running and it's not in resume */
+
+	/* status not changed */
+	if (!strncmp(env_str, event, UEVENT_BUF_SIZE))
+		return;
+
+	/* save the status and notify the update */
+	strncpy(env_str, event, UEVENT_BUF_SIZE);
+	kobject_uevent(&cm->dev->kobj, KOBJ_CHANGE);
+
+	dev_info(cm->dev, event);
+}
+
+/**
+ * fullbatt_vchk - Check voltage drop some times after "FULL" event.
+ * @work: the work_struct appointing the function
+ *
+ * If a user has designated "fullbatt_vchkdrop_ms/uV" values with
+ * charger_desc, Charger Manager checks voltage drop after the battery
+ * "FULL" event. It checks whether the voltage has dropped more than
+ * fullbatt_vchkdrop_uV by calling this function after fullbatt_vchkrop_ms.
+ */
+static void fullbatt_vchk(struct work_struct *work)
+{
+	struct delayed_work *dwork =
+		container_of(work, struct delayed_work, work);
+	struct charger_manager *cm = container_of(dwork,
+			struct charger_manager, fullbatt_vchk_work);
+	struct charger_desc *desc = cm->desc;
+	int batt_uV, err;
+
+	/* remove the appointment for fullbatt_vchk */
+	cm->fullbatt_vchk_jiffies_at = 0;
+
+	if (!desc->fullbatt_vchkdrop_uV || !desc->fullbatt_vchkdrop_ms)
+		return;
+
+	err = get_batt_uV(cm, &batt_uV);
+	if (err) {
+		dev_err(cm->dev, "%s: get_batt_uV error(%d).\n", __func__, err);
+		return;
+	}
+
+	dev_dbg(cm->dev, "VBATT dropped %uuV after full-batt.\n",
+		 cm->fullbatt_vchk_uV - batt_uV);
+
+	if ((cm->fullbatt_vchk_uV - batt_uV) > desc->fullbatt_vchkdrop_uV) {
+		try_charger_restart(cm);
+		uevent_notify(cm, "Recharge");
+	}
+}
+
+/**
+ * _cm_monitor - Monitor the temperature and return true for exceptions.
+ * @cm: the Charger Manager representing the battery.
+ *
+ * Returns true if there is an event to notify for the battery.
+ * (True if the status of "emergency_stop" changes)
+ */
+static bool _cm_monitor(struct charger_manager *cm)
+{
+	struct charger_desc *desc = cm->desc;
+	int temp = desc->is_temperature_error(&cm->last_temp_mC);
+
+	printk(KERN_DEBUG"[CM] %s:%d temp:%d\n", __func__, __LINE__, temp);
+
+	if (!is_batt_present(cm)) {
+		dev_dbg(cm->dev, "Battery is not present.\nSystem shutdown.\n");
+		if (pm_power_off)
+			pm_power_off();
+	}
+
+	is_full(cm);
+
+	dev_dbg(cm->dev, "monitoring (%2.2d.%3.3dC)\n",
+		cm->last_temp_mC / 1000, cm->last_temp_mC % 1000);
+
+
+	/* It has been stopped already */
+	if (temp && cm->emergency_stop)
+		return false;
+
+	/* It has been charging already */
+	if (!temp && !cm->emergency_stop)
+		return false;
+
+	if (temp) {
+		cm->emergency_stop = temp;
+		try_charger_enable(cm, false);
+		if (temp > 0)
+			uevent_notify(cm, "OVERHEAD");
+		else
+			uevent_notify(cm, "COLD");
+	} else {
+		cm->emergency_stop = 0;
+		if (!try_charger_enable(cm, true))
+			uevent_notify(cm, "CHARGING");
+	}
+
+	return true;
+}
+
+/**
+ * cm_monitor - Monitor every battery.
+ *
+ * Returns true if there is an event to notify from any of the batteries.
+ * (True if the status of "emergency_stop" changes)
+ */
+static bool cm_monitor(void)
+{
+	bool stop = false;
+	struct charger_manager *cm;
+
+	mutex_lock(&cm_list_mtx);
+
+	list_for_each_entry(cm, &cm_list, entry)
+		stop |= _cm_monitor(cm);
+
+	mutex_unlock(&cm_list_mtx);
+
+	return stop;
+}
+
+/**
+ * is_polling_required - Return true if need to continue polling for this CM.
+ * @cm: the Charger Manager representing the battery.
+ */
+static bool is_polling_required(struct charger_manager *cm)
+{
+	switch (cm->desc->polling_mode) {
+	case CM_POLL_DISABLE:
+		return false;
+	case CM_POLL_ALWAYS:
+		return true;
+	case CM_POLL_EXTERNAL_POWER_ONLY:
+		return is_ext_pwr_online(cm);
+	case CM_POLL_CHARGING_ONLY:
+		return is_charging(cm);
+	default:
+		dev_warn(cm->dev, "Incorrect polling_mode (%d)\n",
+			cm->desc->polling_mode);
+	}
+
+	return false;
+}
+
+/**
+ * _setup_polling - Setup the next instance of polling.
+ * @work: work_struct of the function _setup_polling.
+ */
+static void _setup_polling(struct work_struct *work)
+{
+	unsigned long min = ULONG_MAX;
+	struct charger_manager *cm;
+	bool keep_polling = false;
+	unsigned long _next_polling;
+
+	mutex_lock(&cm_list_mtx);
+
+	list_for_each_entry(cm, &cm_list, entry) {
+		if (is_polling_required(cm) && cm->desc->polling_interval_ms) {
+			keep_polling = true;
+
+			if (min > cm->desc->polling_interval_ms)
+				min = cm->desc->polling_interval_ms;
+		}
+	}
+
+	polling_jiffy = msecs_to_jiffies(min);
+	if (polling_jiffy <= CM_JIFFIES_SMALL)
+		polling_jiffy = CM_JIFFIES_SMALL + 1;
+
+	if (!keep_polling)
+		polling_jiffy = ULONG_MAX;
+	if (polling_jiffy == ULONG_MAX)
+		goto out;
+
+	WARN(cm_wq == NULL, "charger-manager: workqueue not initialized"
+			    ". try it later. %s\n", __func__);
+
+	_next_polling = jiffies + polling_jiffy;
+
+	if (!delayed_work_pending(&cm_monitor_work) ||
+	    (delayed_work_pending(&cm_monitor_work) &&
+	     time_after(next_polling, _next_polling))) {
+		cancel_delayed_work(&cm_monitor_work);
+		next_polling = jiffies + polling_jiffy;
+		queue_delayed_work(cm_wq, &cm_monitor_work, polling_jiffy);
+	}
+
+out:
+	mutex_unlock(&cm_list_mtx);
+}
+static DECLARE_WORK(setup_polling, _setup_polling);
+
+/**
+ * cm_monitor_poller - The Monitor / Poller.
+ * @work: work_struct of the function cm_monitor_poller
+ *
+ * During non-suspended state, cm_monitor_poller is used to poll and monitor
+ * the batteries.
+ */
+static void cm_monitor_poller(struct work_struct *work)
+{
+	cm_monitor();
+	schedule_work(&setup_polling);
+}
+
+/**
+ * fullbatt_handler - Event handler for CM_EVENT_BATT_FULL
+ * @cm: the Charger Manager representing the battery.
+ */
+static void fullbatt_handler(struct charger_manager *cm)
+{
+	struct charger_desc *desc = cm->desc;
+
+	if (!desc->fullbatt_vchkdrop_uV || !desc->fullbatt_vchkdrop_ms)
+		goto out;
+
+	if (cm_suspended)
+		cm->cancel_suspend = true;
+
+	cancel_delayed_work(&cm->fullbatt_vchk_work);
+	queue_delayed_work(cm_wq, &cm->fullbatt_vchk_work,
+			   msecs_to_jiffies(desc->fullbatt_vchkdrop_ms));
+	cm->fullbatt_vchk_jiffies_at = jiffies + msecs_to_jiffies(
+				       desc->fullbatt_vchkdrop_ms);
+
+	if (cm->fullbatt_vchk_jiffies_at == 0)
+		cm->fullbatt_vchk_jiffies_at = 1;
+
+out:
+	dev_info(cm->dev, "IRQHANDLE: Battery Fully Charged.\n");
+	uevent_notify(cm, default_event_names[CM_EVENT_BATT_FULL]);
+}
+
+/**
+ * battout_handler - Event handler for CM_EVENT_BATT_OUT
+ * @cm: the Charger Manager representing the battery.
+ */
+static void battout_handler(struct charger_manager *cm)
+{
+	if (cm_suspended)
+		cm->cancel_suspend = true;
+
+	if (!is_batt_present(cm)) {
+		dev_emerg(cm->dev, "Battery Pulled Out!\n");
+		uevent_notify(cm, default_event_names[CM_EVENT_BATT_OUT]);
+	} else {
+		uevent_notify(cm, "Battery Reinserted?");
+	}
+}
+
+/**
+ * misc_event_handler - Handler for other evnets
+ * @cm: the Charger Manager representing the battery.
+ * @type: the Charger Manager representing the battery.
+ */
+static void misc_event_handler(struct charger_manager *cm,
+			enum cm_event_types type)
+{
+	if (cm_suspended)
+		cm->cancel_suspend = true;
+
+	if (!delayed_work_pending(&cm_monitor_work) &&
+	    is_polling_required(cm) && cm->desc->polling_interval_ms)
+		schedule_work(&setup_polling);
+	uevent_notify(cm, default_event_names[type]);
+}
+
+/**
+ * cm_setup_timer - For in-suspend monitoring setup wakeup alarm for suspend_again.
+ *
+ * Returns true if the alarm is set for Charger Manager to use.
+ * Returns false if
+ *	cm_setup_timer fails to set an alarm,
+ *	cm_setup_timer does not need to set an alarm for Charger Manager,
+ *	or an alarm previously configured is to be used.
+ */
+static bool cm_setup_timer(void)
+{
+	struct charger_manager *cm;
+	unsigned int wakeup_ms = UINT_MAX;
+	bool ret = false;
+
+	mutex_lock(&cm_list_mtx);
+
+	list_for_each_entry(cm, &cm_list, entry) {
+		unsigned int fbchk_ms = 0;
+
+		/* fullbatt_vchk is required. setup timer for that */
+		if (cm->fullbatt_vchk_jiffies_at) {
+			fbchk_ms = jiffies_to_msecs(cm->fullbatt_vchk_jiffies_at
+						    - jiffies);
+			if (cm->fullbatt_vchk_jiffies_at <= jiffies ||
+				msecs_to_jiffies(fbchk_ms) < CM_JIFFIES_SMALL) {
+				fullbatt_vchk(&cm->fullbatt_vchk_work.work);
+				fbchk_ms = 0;
+			}
+		}
+		CM_MIN_VALID(wakeup_ms, fbchk_ms);
+
+		/* Skip if polling is not required for this CM */
+		switch (cm->desc->polling_mode) {
+		case CM_POLL_DISABLE:
+			continue;
+		case CM_POLL_ALWAYS:
+			break;
+		case CM_POLL_EXTERNAL_POWER_ONLY:
+			if (!is_ext_pwr_online(cm))
+				continue;
+			break;
+		case CM_POLL_CHARGING_ONLY:
+			if (!is_charging(cm) && !cm->emergency_stop)
+				continue;
+			break;
+		default:
+			dev_warn(cm->dev, "Incorrect polling_mode (%d)\n",
+				cm->desc->polling_mode);
+			break;
+		}
+
+		if (cm->desc->polling_interval_ms == 0)
+			continue;
+
+		CM_MIN_VALID(wakeup_ms, cm->desc->polling_interval_ms);
+	}
+
+	/* TODO: Reviewing Here */
+
+	mutex_unlock(&cm_list_mtx);
+
+	if (wakeup_ms < UINT_MAX && wakeup_ms > 0) {
+		pr_info("Charger Manager wakeup timer: %u ms.\n", wakeup_ms);
+		if (rtc_dev) {
+			struct rtc_wkalrm tmp;
+			unsigned long time, now;
+			unsigned long add = DIV_ROUND_UP(wakeup_ms, 1000);
+
+			/*
+			 * Set alarm with the polling interval (wakeup_ms)
+			 * except when rtc_wkalarm_save comes first.
+			 * However, the alarm time should be NOW +
+			 * CM_RTC_SMALL or later.
+			 */
+			tmp.enabled = 1;
+			rtc_read_time(rtc_dev, &tmp.time);
+			rtc_tm_to_time(&tmp.time, &now);
+			if (add < CM_RTC_SMALL)
+				add = CM_RTC_SMALL;
+			time = now + add;
+
+			ret = true;
+
+			if (rtc_wkalarm_save.enabled && rtc_wkalarm_save_ &&
+			    rtc_wkalarm_save_ < time) {
+				if (rtc_wkalarm_save_ < now + CM_RTC_SMALL)
+					time = now + CM_RTC_SMALL;
+				else
+					time = rtc_wkalarm_save_;
+
+				/* The timer is not appointed by CM */
+				ret = false;
+			}
+
+			pr_info("Waking up after %lu secs.\n",
+					time - now);
+
+			rtc_time_to_tm(time, &tmp.time);
+			rtc_set_alarm(rtc_dev, &tmp);
+			cm_suspend_duration_ms += wakeup_ms;
+			return ret;
+		}
+	}
+
+	if (rtc_dev)
+		rtc_set_alarm(rtc_dev, &rtc_wkalarm_save);
+	return false;
+}
+
+static int charger_get_property(struct power_supply *psy,
+		enum power_supply_property psp,
+		union power_supply_propval *val)
+{
+	struct charger_manager *cm = container_of(psy,
+			struct charger_manager, charger_psy);
+	struct charger_desc *desc = cm->desc;
+	int i, ret = 0, uV;
+
+	switch (psp) {
+	case POWER_SUPPLY_PROP_STATUS:
+		if (is_charging(cm))
+			val->intval = POWER_SUPPLY_STATUS_CHARGING;
+		else if (is_ext_pwr_online(cm))
+			val->intval = POWER_SUPPLY_STATUS_NOT_CHARGING;
+		else
+			val->intval = POWER_SUPPLY_STATUS_DISCHARGING;
+		break;
+	case POWER_SUPPLY_PROP_HEALTH:
+		if (cm->emergency_stop > 0)
+			val->intval = POWER_SUPPLY_HEALTH_OVERHEAT;
+		else if (cm->emergency_stop < 0)
+			val->intval = POWER_SUPPLY_HEALTH_COLD;
+		else
+			val->intval = POWER_SUPPLY_HEALTH_GOOD;
+		break;
+	case POWER_SUPPLY_PROP_PRESENT:
+		if (is_batt_present(cm))
+			val->intval = 1;
+		else
+			val->intval = 0;
+		break;
+	case POWER_SUPPLY_PROP_VOLTAGE_NOW:
+		ret = get_batt_uV(cm, &i);
+		val->intval = i;
+		break;
+	case POWER_SUPPLY_PROP_CURRENT_NOW:
+		ret = cm->fuel_gauge->get_property(cm->fuel_gauge,
+				POWER_SUPPLY_PROP_CURRENT_NOW, val);
+		break;
+	case POWER_SUPPLY_PROP_TEMP:
+		/* in thenth of centigrade */
+		if (cm->last_temp_mC == INT_MIN)
+			desc->is_temperature_error(&cm->last_temp_mC);
+		val->intval = cm->last_temp_mC / 100;
+		if (!desc->measure_battery_temp)
+			ret = -ENODEV;
+		break;
+	case POWER_SUPPLY_PROP_TEMP_AMBIENT:
+		/* in thenth of centigrade */
+		if (cm->last_temp_mC == INT_MIN)
+			desc->is_temperature_error(&cm->last_temp_mC);
+		val->intval = cm->last_temp_mC / 100;
+		if (!desc->measure_ambient_temp)
+			ret = -ENODEV;
+		break;
+	case POWER_SUPPLY_PROP_CAPACITY:
+		if (!cm->fuel_gauge) {
+			ret = -ENODEV;
+			break;
+		}
+
+		if (!is_batt_present(cm)) {
+			/* There is no battery. Assume 100% */
+			val->intval = 100;
+			break;
+		}
+
+		ret = cm->fuel_gauge->get_property(cm->fuel_gauge,
+					POWER_SUPPLY_PROP_CAPACITY, val);
+		if (ret)
+			break;
+
+		if (val->intval > 100) {
+			/* More than 100%? */
+			val->intval = 100;
+			break;
+		}
+		if (val->intval < 0) {
+			/* Lower than 0%? */
+			val->intval = 0;
+		}
+
+		/* Do not adjust SOC when charging: voltage is overrated */
+		if (is_charging(cm))
+			break;
+
+		/*
+		 * If the capacity value is inconsistent, calibrate it base on
+		 * the battery voltage values and the thresholds given as desc
+		 */
+		ret = get_batt_uV(cm, &uV);
+		if (ret) {
+			/* Voltage information not available. No calibration */
+			ret = 0;
+			break;
+		}
+
+		if (desc->fullbatt_uV > 0 && uV >= desc->fullbatt_uV &&
+		    !is_charging(cm)) {
+			val->intval = 100;
+			break;
+		}
+
+		printk(KERN_DEBUG"[CM] %s:%d capacity:%d\n",
+			__func__, __LINE__, val->intval);
+
+		break;
+	case POWER_SUPPLY_PROP_ONLINE:
+		if (is_ext_pwr_online(cm))
+			val->intval = 1;
+		else
+			val->intval = 0;
+		break;
+	case POWER_SUPPLY_PROP_CHARGE_FULL:
+		if (is_ext_pwr_online(cm)) {
+			/* Not full if it's charging. */
+			if (is_charging(cm)) {
+				val->intval = 0;
+				break;
+			}
+
+		} else {
+			val->intval = 0;
+			break;
+		}
+
+		/* FIXME: use STATUS information */
+
+		/* Full if it's over the fullbatt voltage */
+		ret = get_batt_uV(cm, &uV);
+		if (!ret && desc->fullbatt_uV > 0 && uV >= desc->fullbatt_uV &&
+		    !is_charging(cm)) {
+			val->intval = 1;
+			break;
+		}
+
+		/* Full if the cap is 100 */
+		if (cm->fuel_gauge) {
+			ret = cm->fuel_gauge->get_property(cm->fuel_gauge,
+					POWER_SUPPLY_PROP_CAPACITY, val);
+			if (!ret &&
+			    (val->intval >= (100 - desc->soc_margin)) &&
+			    !is_charging(cm)) {
+				val->intval = 1;
+				break;
+			}
+		}
+
+		val->intval = 0;
+		ret = 0;
+		break;
+	case POWER_SUPPLY_PROP_CHARGE_NOW:
+		if (is_charging(cm)) {
+			ret = cm->fuel_gauge->get_property(cm->fuel_gauge,
+						POWER_SUPPLY_PROP_CHARGE_NOW,
+						val);
+			if (ret) {
+				val->intval = 1;
+				ret = 0;
+			} else {
+				/* If CHARGE_NOW is supplied, use it */
+				val->intval = (val->intval > 0) ?
+						val->intval : 1;
+			}
+		} else {
+			val->intval = 0;
+		}
+		break;
+	default:
+		return -EINVAL;
+	}
+	return ret;
+}
+
+#define NUM_CHARGER_PSY_OPTIONAL	(4)
+static enum power_supply_property default_charger_props[] = {
+	/* Guaranteed to provide */
+	POWER_SUPPLY_PROP_STATUS,
+	POWER_SUPPLY_PROP_HEALTH,
+	POWER_SUPPLY_PROP_PRESENT,
+	POWER_SUPPLY_PROP_VOLTAGE_NOW,
+	POWER_SUPPLY_PROP_CAPACITY,
+	POWER_SUPPLY_PROP_ONLINE,
+	POWER_SUPPLY_PROP_CHARGE_FULL,
+	POWER_SUPPLY_PROP_CHARGE_NOW,
+	/*
+	 * Optional properties are:
+	 * POWER_SUPPLY_PROP_CHARGE_NOW,
+	 * POWER_SUPPLY_PROP_CURRENT_NOW,
+	 * POWER_SUPPLY_PROP_TEMP, and
+	 * POWER_SUPPLY_PROP_TEMP_AMBIENT,
+	 */
+};
+
+static struct power_supply psy_default = {
+	.name = "battery",
+	.type = POWER_SUPPLY_TYPE_BATTERY, /* Need to reconsider */
+	/* .supplied_to = {"battery"}, */
+	/* .num_supplicants = 1, */
+	.properties = default_charger_props,
+	.num_properties = ARRAY_SIZE(default_charger_props),
+	.get_property = charger_get_property,
+};
+
+static bool _cm_fbchk_in_suspend(struct charger_manager *cm)
+{
+	unsigned long jiffy_now = jiffies;
+
+	if (!cm->fullbatt_vchk_jiffies_at)
+		return false;
+
+	if (g_desc && g_desc->assume_timer_stops_in_suspend)
+		jiffy_now += msecs_to_jiffies(cm_suspend_duration_ms);
+
+	/* Execute now if it's going to be executed not too long after */
+	jiffy_now += CM_JIFFIES_SMALL;
+
+	if (time_after_eq(jiffy_now, cm->fullbatt_vchk_jiffies_at)) {
+		fullbatt_vchk(&cm->fullbatt_vchk_work.work);
+		return true;
+	}
+
+	return false;
+}
+
+bool cm_suspend_again(void)
+{
+	struct charger_manager *cm;
+	bool ret = false;
+
+	if (!g_desc)
+		return false;
+	if (!g_desc->is_rtc_only_wakeup_reason)
+		return false;
+	if (!g_desc->is_rtc_only_wakeup_reason())
+		return false;
+	if (!cm_rtc_set)
+		return false;
+	if (cm_wq == NULL) /* CM not initialized */
+		return false;
+
+	if (cm_monitor())
+		goto out;
+
+	ret = true;
+	mutex_lock(&cm_list_mtx);
+	list_for_each_entry(cm, &cm_list, entry) {
+		_cm_fbchk_in_suspend(cm);
+
+		if (cm->status_save_ext_pwr_inserted != is_ext_pwr_online(cm) ||
+		    cm->status_save_batt != is_batt_present(cm))
+			ret = false;
+	}
+	mutex_unlock(&cm_list_mtx);
+
+	cm_rtc_set = cm_setup_timer();
+out:
+	/* It's about the time when the non-CM appointed timer goes off */
+	if (rtc_wkalarm_save.enabled) {
+		unsigned long now;
+		struct rtc_time tmp;
+
+		rtc_read_time(rtc_dev, &tmp);
+		rtc_tm_to_time(&tmp, &now);
+
+		if (rtc_wkalarm_save_ &&
+		    now + CM_RTC_SMALL >= rtc_wkalarm_save_)
+			return false;
+		/* TODO: Test rtc aie handlers' reaction to this */
+	}
+	pr_emerg("%s:%d\n", __func__, __LINE__);
+	return ret;
+}
+EXPORT_SYMBOL_GPL(cm_suspend_again);
+
+int setup_charger_manager(struct charger_global_desc *gd)
+{
+	if (!gd)
+		return -EINVAL;
+
+	if (rtc_dev)
+		rtc_class_close(rtc_dev);
+	rtc_dev = NULL;
+	g_desc = NULL;
+
+	if (!gd->is_rtc_only_wakeup_reason) {
+		pr_err("The callback is_wktimer_only_wkreason is not given.\n");
+		return -EINVAL;
+	}
+
+	if (gd->rtc) {
+		rtc_dev = rtc_class_open(gd->rtc);
+		if (IS_ERR_OR_NULL(rtc_dev)) {
+			rtc_dev = NULL;
+			/* Retry at probe. RTC may be not registered yet */
+		}
+	} else {
+		pr_warn("No wktimer is given for charger manager."
+			"In-suspend monitoring won't work.\n");
+	}
+
+	g_desc = gd;
+	return 0;
+}
+EXPORT_SYMBOL_GPL(setup_charger_manager);
+
+bool is_charger_manager_active(void)
+{
+	/* Should have called setup_charger_manager */
+	if (!g_desc)
+		return false;
+
+	/* Should have at least one instance of charger_manager */
+	if (list_empty(&cm_list))
+		return false;
+
+	return true;
+}
+EXPORT_SYMBOL_GPL(is_charger_manager_active);
+
+#ifdef CONFIG_EXTCON
+/*
+ * This function enable or disable charger for charging according to
+ * cable state when charger cable is attached or detached. So, each
+ * cable has requested different current limit to protect over-current
+ * issue and then it set current limit of charger(regulator) according to
+ * a kind of charger cable before enabling charger.
+ */
+static void charger_extcon_work(struct work_struct *work)
+{
+	struct charger_cable *cable =
+			container_of(work, struct charger_cable, wq);
+	int ret;
+
+	if (cable->attached && cable->min_uA != 0 && cable->max_uA != 0) {
+		ret = regulator_set_current_limit(cable->charger->consumer,
+					cable->min_uA, cable->max_uA);
+		if (ret < 0) {
+			pr_err("Cannot set current limit of %s (%s)\n",
+				cable->charger->regulator_name, cable->name);
+			return;
+		}
+
+		pr_info("Set current limit of %s : %duA ~ %duA\n",
+					cable->charger->regulator_name,
+					cable->min_uA, cable->max_uA);
+	}
+
+	try_charger_enable(cable->cm, cable->attached);
+
+#ifdef CONFIG_JACK_MON
+	/*
+	 * FIXME: Extcon framework will be used instead of jack handler(
+	 * CONFIG_JACK_MON). But, SLP Platform have still used jack handler
+	 * for external connector (e.g., TA, USB and so on).
+	 * The jack handler will be removed after replacing from jack handler
+	 * to Extcon framework.
+	 */
+	jack_event_handler("charger", cable->attached);
+#endif
+}
+
+/* This function executes workqueue when charger cable is attached/detached. */
+static int charger_extcon_notifier(struct notifier_block *self,
+			unsigned long event, void *ptr)
+{
+	struct charger_cable *cable =
+		container_of(self, struct charger_cable, nb);
+
+	cable->attached = event;
+	schedule_work(&cable->wq);
+
+	return NOTIFY_DONE;
+}
+
+/* This function initialize charger cable with Extcon framework */
+static int charger_extcon_init(struct charger_manager *cm,
+		struct charger_cable *cable)
+{
+	int ret = 0;
+
+	/*
+	 * Charger manager use Extcon framework to identify
+	 * the charger cable among various external connector
+	 * cable (e.g., TA, USB, Dock and so on).
+	 */
+	INIT_WORK(&cable->wq, charger_extcon_work);
+	cable->nb.notifier_call = charger_extcon_notifier;
+	ret = extcon_register_interest(&cable->extcon_dev,
+			cable->extcon_name, cable->name, &cable->nb);
+	if (ret < 0) {
+		pr_info("Cannot register extcon_dev for %s(cable: %s).\n",
+				cable->extcon_name,
+				cable->name);
+		ret = -EINVAL;
+	}
+
+	return ret;
+}
+
+#endif	/* CONFIG_EXTCON */
+
+static int charger_manager_probe(struct platform_device *pdev)
+{
+	struct charger_desc *desc = dev_get_platdata(&pdev->dev);
+	struct charger_manager *cm;
+	int ret = 0, i, j;
+	union power_supply_propval val;
+
+	if (g_desc && !rtc_dev && g_desc->rtc) {
+		rtc_dev = rtc_class_open(g_desc->rtc);
+		if (IS_ERR_OR_NULL(rtc_dev)) {
+			rtc_dev = NULL;
+			dev_err(&pdev->dev, "Cannot get RTC %s.\n",
+				g_desc->rtc);
+			ret = -ENODEV;
+			goto err_alloc;
+		}
+	}
+
+	if (!desc) {
+		dev_err(&pdev->dev, "No platform data (desc) found.\n");
+		ret = -ENODEV;
+		goto err_alloc;
+	}
+
+	cm = kzalloc(sizeof(struct charger_manager), GFP_KERNEL);
+	if (!cm) {
+		dev_err(&pdev->dev, "Cannot allocate memory.\n");
+		ret = -ENOMEM;
+		goto err_alloc;
+	}
+
+	/* Basic Values. Unspecified are Null or 0 */
+	cm->dev = &pdev->dev;
+	cm->desc = desc;
+	cm->last_temp_mC = INT_MIN; /* denotes "unmeasured, yet" */
+
+	/*
+	 * The following two do not need to be errors.
+	 * Users may intentionally ignore those two features.
+	 */
+	if (desc->fullbatt_uV == 0) {
+		dev_info(&pdev->dev, "Ignoring full-battery voltage threshold"
+					" as it is not supplied.");
+	}
+
+	cm->fullbatt_vchk_uV = desc->fullbatt_uV;
+
+	if (!desc->fullbatt_vchkdrop_ms || !desc->fullbatt_vchkdrop_uV) {
+		dev_info(&pdev->dev, "Disabling full-battery voltage drop "
+				"checking mechanism as it is not supplied.");
+		desc->fullbatt_vchkdrop_ms = 0;
+		desc->fullbatt_vchkdrop_uV = 0;
+	}
+
+	if (!desc->charger_regulators || desc->num_charger_regulators < 1) {
+		ret = -EINVAL;
+		dev_err(&pdev->dev, "charger_regulators undefined.\n");
+		goto err_no_charger;
+	}
+
+	for (i = 0 ; i < desc->num_charger_regulators ; i++) {
+		struct charger_regulator *charger
+					= &desc->charger_regulators[i];
+
+		charger->consumer = regulator_get(&pdev->dev,
+					charger->regulator_name);
+		if (charger->consumer == NULL) {
+			dev_err(&pdev->dev, "Cannot find charger(%s)n",
+						charger->regulator_name);
+			ret = -EINVAL;
+			goto err_no_charger_stat;
+		}
+#ifdef CONFIG_EXTCON
+		for (j = 0 ; j < charger->num_cables ; j++) {
+			struct charger_cable *cable = &charger->cables[j];
+
+			ret = charger_extcon_init(cm, cable);
+			if (ret < 0) {
+				dev_err(&pdev->dev, "Cannot find charger(%s)n",
+						charger->regulator_name);
+				goto err_extcon;
+			}
+			cable->charger = charger;
+			cable->cm = cm;
+		}
+#endif
+	}
+
+	if (!desc->psy_charger_stat || !desc->psy_charger_stat[0]) {
+		dev_err(&pdev->dev, "No power supply defined.\n");
+		ret = -EINVAL;
+		goto err_extcon;
+	}
+
+	for (i = 0; desc->psy_charger_stat[i]; i++)
+		/* Counting index only */ ;
+
+	cm->charger_stat = kzalloc(sizeof(struct power_supply *) * (i + 1),
+				   GFP_KERNEL);
+	if (!cm->charger_stat) {
+		ret = -ENOMEM;
+		goto err_extcon;
+	}
+
+	for (i = 0; desc->psy_charger_stat[i]; i++) {
+		cm->charger_stat[i] = power_supply_get_by_name(
+					desc->psy_charger_stat[i]);
+		if (!cm->charger_stat[i]) {
+			dev_err(&pdev->dev, "Cannot find power supply "
+					"\"%s\"\n",
+					desc->psy_charger_stat[i]);
+			ret = -ENODEV;
+			goto err_chg_stat;
+		}
+	}
+
+	cm->fuel_gauge = power_supply_get_by_name(desc->psy_fuel_gauge);
+	if (!cm->fuel_gauge) {
+		dev_err(&pdev->dev, "Cannot find power supply \"%s\"\n",
+				desc->psy_fuel_gauge);
+		ret = -ENODEV;
+		goto err_chg_stat;
+	}
+
+	if (desc->polling_interval_ms == 0 ||
+	    msecs_to_jiffies(desc->polling_interval_ms) <= CM_JIFFIES_SMALL) {
+		dev_err(&pdev->dev, "polling_interval_ms is too small\n");
+		ret = -EINVAL;
+		goto err_chg_stat;
+	}
+
+	if (!desc->is_temperature_error) {
+		dev_err(&pdev->dev, "there is no is_temperature_error\n");
+		ret = -EINVAL;
+		goto err_chg_stat;
+	}
+
+	platform_set_drvdata(pdev, cm);
+
+	memcpy(&cm->charger_psy, &psy_default,
+				sizeof(psy_default));
+	if (!desc->psy_name) {
+		strncpy(cm->psy_name_buf, psy_default.name,
+				PSY_NAME_MAX);
+	} else {
+		strncpy(cm->psy_name_buf, desc->psy_name, PSY_NAME_MAX);
+	}
+	cm->charger_psy.name = cm->psy_name_buf;
+
+	/* Allocate for psy properties because they may vary */
+	cm->charger_psy.properties = kzalloc(sizeof(enum power_supply_property)
+				* (ARRAY_SIZE(default_charger_props) +
+				NUM_CHARGER_PSY_OPTIONAL),
+				GFP_KERNEL);
+	if (!cm->charger_psy.properties) {
+		dev_err(&pdev->dev, "Cannot allocate for psy properties.\n");
+		ret = -ENOMEM;
+		goto err_chg_stat;
+	}
+	memcpy(cm->charger_psy.properties, default_charger_props,
+		sizeof(enum power_supply_property) *
+		ARRAY_SIZE(default_charger_props));
+	cm->charger_psy.num_properties = psy_default.num_properties;
+
+	/* Find which optional psy-properties are available */
+	if (!cm->fuel_gauge->get_property(cm->fuel_gauge,
+					  POWER_SUPPLY_PROP_CHARGE_NOW, &val)) {
+		cm->charger_psy.properties[cm->charger_psy.num_properties] =
+				POWER_SUPPLY_PROP_CHARGE_NOW;
+		cm->charger_psy.num_properties++;
+	}
+	if (!cm->fuel_gauge->get_property(cm->fuel_gauge,
+					  POWER_SUPPLY_PROP_CURRENT_NOW,
+					  &val)) {
+		cm->charger_psy.properties[cm->charger_psy.num_properties] =
+				POWER_SUPPLY_PROP_CURRENT_NOW;
+		cm->charger_psy.num_properties++;
+	}
+	if (desc->measure_ambient_temp) {
+		cm->charger_psy.properties[cm->charger_psy.num_properties] =
+				POWER_SUPPLY_PROP_TEMP_AMBIENT;
+		cm->charger_psy.num_properties++;
+	}
+	if (desc->measure_battery_temp) {
+		cm->charger_psy.properties[cm->charger_psy.num_properties] =
+				POWER_SUPPLY_PROP_TEMP;
+		cm->charger_psy.num_properties++;
+	}
+
+	if (power_supply_register(NULL, &cm->charger_psy)) {
+		dev_err(&pdev->dev, "Cannot register charger-manager with"
+				" name \"%s\".\n", cm->charger_psy.name);
+		ret = -EINVAL;
+		goto err_psy;
+	}
+
+	/* Fullbat vchk should be ready before registering irq handlers */
+	INIT_DELAYED_WORK(&cm->fullbatt_vchk_work, fullbatt_vchk);
+
+	/* Add to the list */
+	mutex_lock(&cm_list_mtx);
+	list_add(&cm->entry, &cm_list);
+	mutex_unlock(&cm_list_mtx);
+
+	schedule_work(&setup_polling);
+
+	return 0;
+
+err_psy:
+	kfree(cm->charger_psy.properties);
+err_chg_stat:
+	kfree(cm->charger_stat);
+#ifdef CONFIG_EXTCON
+err_extcon:
+	for (i = 0 ; i < desc->num_charger_regulators ; i++) {
+		struct charger_regulator *charger
+				= &desc->charger_regulators[i];
+		for (j = 0 ; j < charger->num_cables ; j++) {
+			struct charger_cable *cable = &charger->cables[j];
+			extcon_unregister_interest(&cable->extcon_dev);
+		}
+	}
+#endif
+err_no_charger_stat:
+	for (i = 0 ; i < desc->num_charger_regulators ; i++)
+		regulator_put(desc->charger_regulators[i].consumer);
+err_no_charger:
+	kfree(cm);
+err_alloc:
+	return ret;
+}
+
+static int __devexit charger_manager_remove(struct platform_device *pdev)
+{
+	struct charger_manager *cm = platform_get_drvdata(pdev);
+	struct charger_desc *desc = cm->desc;
+	int i, j;
+
+	/* Remove from the list */
+	mutex_lock(&cm_list_mtx);
+	list_del(&cm->entry);
+	mutex_unlock(&cm_list_mtx);
+
+	schedule_work(&setup_polling);
+
+	power_supply_unregister(&cm->charger_psy);
+
+#ifdef CONFIG_EXTCON
+	for (i = 0 ; i < desc->num_charger_regulators ; i++) {
+		struct charger_regulator *charger
+				= &desc->charger_regulators[i];
+		for (j = 0 ; j < charger->num_cables ; j++) {
+			struct charger_cable *cable = &charger->cables[j];
+			extcon_unregister_interest(&cable->extcon_dev);
+		}
+	}
+#endif
+
+	for (i = 0 ; i < desc->num_charger_regulators ; i++)
+		regulator_put(desc->charger_regulators[i].consumer);
+
+	kfree(cm->charger_psy.properties);
+	kfree(cm->charger_stat);
+
+	kfree(cm);
+	return 0;
+}
+
+const struct platform_device_id charger_manager_id[] = {
+	{ "charger-manager", 0 },
+	{ },
+};
+
+static int cm_suspend_noirq(struct device *dev)
+{
+	struct platform_device *pdev = container_of(dev, struct platform_device,
+						    dev);
+	struct charger_manager *cm = platform_get_drvdata(pdev);
+
+	if (cm->cancel_suspend) {
+		cm->cancel_suspend = false;
+		return -EAGAIN;
+	}
+
+	return 0;
+}
+
+static int cm_suspend_prepare(struct device *dev)
+{
+	struct platform_device *pdev = container_of(dev, struct platform_device,
+						    dev);
+	struct charger_manager *cm = platform_get_drvdata(pdev);
+
+	if (!cm_suspended) {
+		if (rtc_dev) {
+			struct rtc_time tmp;
+			unsigned long now;
+
+			rtc_read_alarm(rtc_dev, &rtc_wkalarm_save);
+			rtc_read_time(rtc_dev, &tmp);
+
+			if (rtc_wkalarm_save.enabled) {
+				rtc_tm_to_time(&rtc_wkalarm_save.time,
+					       &rtc_wkalarm_save_);
+				rtc_tm_to_time(&tmp, &now);
+				if (now > rtc_wkalarm_save_)
+					rtc_wkalarm_save_ = 0;
+			} else {
+				rtc_wkalarm_save_ = 0;
+			}
+		}
+		cm_suspended = true;
+	}
+
+	cancel_delayed_work(&cm->fullbatt_vchk_work);
+	cm->status_save_ext_pwr_inserted = is_ext_pwr_online(cm);
+	cm->status_save_batt = is_batt_present(cm);
+
+	if (!cm_rtc_set) {
+		cm_suspend_duration_ms = 0;
+		cm_rtc_set = cm_setup_timer();
+	}
+
+	return 0;
+}
+
+static void cm_suspend_complete(struct device *dev)
+{
+	struct platform_device *pdev = container_of(dev, struct platform_device,
+						    dev);
+	struct charger_manager *cm = platform_get_drvdata(pdev);
+
+	if (cm_suspended) {
+		if (rtc_dev) {
+			struct rtc_wkalrm tmp;
+
+			rtc_read_alarm(rtc_dev, &tmp);
+			rtc_wkalarm_save.pending = tmp.pending;
+			rtc_set_alarm(rtc_dev, &rtc_wkalarm_save);
+		}
+		cm_suspended = false;
+		cm_rtc_set = false;
+	}
+
+	/* Re-enqueue delayed work (fullbatt_vchk_work) */
+	if (cm->fullbatt_vchk_jiffies_at) {
+		unsigned long delay = 0;
+		unsigned long now = jiffies;
+
+		if (time_after_eq(now + CM_JIFFIES_SMALL,
+				  cm->fullbatt_vchk_jiffies_at)) {
+			delay = (unsigned long)((long)(now + CM_JIFFIES_SMALL)
+				- (long)(cm->fullbatt_vchk_jiffies_at));
+			delay = jiffies_to_msecs(delay);
+		} else {
+			delay = 0;
+		}
+
+		/*
+		 * Account for cm_suspend_duration_ms if
+		 * assume_timer_stops_in_suspend is active
+		 */
+		if (g_desc && g_desc->assume_timer_stops_in_suspend) {
+			if (delay > cm_suspend_duration_ms)
+				delay -= cm_suspend_duration_ms;
+			else
+				delay = 0;
+		}
+
+		queue_delayed_work(cm_wq, &cm->fullbatt_vchk_work,
+				   msecs_to_jiffies(delay));
+	}
+	cm->cancel_suspend = false;
+	uevent_notify(cm, NULL);
+}
+
+static const struct dev_pm_ops charger_manager_pm = {
+	.prepare	= cm_suspend_prepare,
+	.suspend_noirq	= cm_suspend_noirq,
+	.complete	= cm_suspend_complete,
+};
+
+static struct platform_driver charger_manager_driver = {
+	.driver = {
+		.name = "charger-manager",
+		.owner = THIS_MODULE,
+		.pm = &charger_manager_pm,
+	},
+	.probe = charger_manager_probe,
+	.remove = __devexit_p(charger_manager_remove),
+	.id_table = charger_manager_id,
+};
+
+static int __init charger_manager_init(void)
+{
+	cm_wq = create_freezable_workqueue("charger_manager");
+	INIT_DELAYED_WORK(&cm_monitor_work, cm_monitor_poller);
+
+	return platform_driver_register(&charger_manager_driver);
+}
+/* Charger manager depends on other devices. Init this later than others */
+late_initcall(charger_manager_init);
+
+static void __exit charger_manager_cleanup(void)
+{
+	destroy_workqueue(cm_wq);
+	cm_wq = NULL;
+
+	platform_driver_unregister(&charger_manager_driver);
+}
+module_exit(charger_manager_cleanup);
+
+static bool find_power_supply(struct charger_manager *cm,
+			struct power_supply *psy)
+{
+	int i;
+	bool found = false;
+
+	for (i = 0; cm->charger_stat[i]; i++) {
+		if (psy == cm->charger_stat[i]) {
+			found = true;
+			break;
+		}
+	}
+
+	return found;
+}
+
+void cm_notify_event(struct power_supply *psy, enum cm_event_types type,
+		     char *msg)
+{
+	struct charger_manager *cm;
+	bool found_power_supply = false;
+
+	if (psy == NULL)
+		return;
+
+	mutex_lock(&cm_list_mtx);
+	list_for_each_entry(cm, &cm_list, entry) {
+		found_power_supply = find_power_supply(cm, psy);
+		if (found_power_supply)
+			break;
+	}
+	mutex_unlock(&cm_list_mtx);
+
+	if (!found_power_supply)
+		return;
+
+	switch (type) {
+	case CM_EVENT_BATT_FULL:
+		fullbatt_handler(cm);
+		break;
+	case CM_EVENT_BATT_OUT:
+		battout_handler(cm);
+		break;
+	case CM_EVENT_BATT_IN:
+	case CM_EVENT_EXT_PWR_IN_OUT ... CM_EVENT_CHG_START_STOP:
+		misc_event_handler(cm, type);
+		break;
+	case CM_EVENT_UNDESCRIBED:
+	case CM_EVENT_OTHERS:
+		uevent_notify(cm, msg ? msg : default_event_names[type]);
+		break;
+	default:
+		dev_err(cm->dev, "%s type not specified.\n", __func__);
+		break;
+	}
+}
+EXPORT_SYMBOL_GPL(cm_notify_event);
+
+struct charger_manager *get_charger_manager(char *psy_name)
+{
+	struct power_supply *psy = power_supply_get_by_name(psy_name);
+
+	return container_of(psy, struct charger_manager, charger_psy);
+}
+EXPORT_SYMBOL_GPL(get_charger_manager);
+
+void cm_prohibit_charging(struct charger_manager *cm)
+{
+	cm->user_prohibit = true;
+	try_charger_enable(cm, false);
+}
+EXPORT_SYMBOL_GPL(cm_prohibit_charging);
+
+void cm_allow_charging(struct charger_manager *cm)
+{
+	cm->user_prohibit = false;
+	try_charger_enable(cm, true);
+}
+EXPORT_SYMBOL_GPL(cm_allow_charging);
+
+MODULE_AUTHOR("MyungJoo Ham <myungjoo.ham@samsung.com>");
+MODULE_DESCRIPTION("Charger Manager");
+MODULE_LICENSE("GPL");
+MODULE_ALIAS("charger-manager");
diff --git a/drivers/power/max17042_battery.c b/drivers/power/max17042_battery.c
index c5c8805..4842eaa 100644
--- a/drivers/power/max17042_battery.c
+++ b/drivers/power/max17042_battery.c
@@ -174,7 +174,10 @@ static int __devinit max17042_probe(struct i2c_client *client,
 
 	i2c_set_clientdata(client, chip);
 
-	chip->battery.name		= "max17042_battery";
+	if (chip->pdata->psy_name)
+		chip->battery.name		= chip->pdata->psy_name;
+	else
+		chip->battery.name		= "max17042_battery";
 	chip->battery.type		= POWER_SUPPLY_TYPE_BATTERY;
 	chip->battery.get_property	= max17042_get_property;
 	chip->battery.properties	= max17042_battery_props;
diff --git a/drivers/power/max17042_fuelgauge_px.c b/drivers/power/max17042_fuelgauge_px.c
new file mode 100644
index 0000000..6244f2b
--- /dev/null
+++ b/drivers/power/max17042_fuelgauge_px.c
@@ -0,0 +1,1622 @@
+/*
+ *  max17042_battery.c
+ *  fuel-gauge systems for lithium-ion (Li+) batteries
+ *
+ *  Copyright (C) 2010 Samsung Electronics
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#include <linux/types.h>
+#include <linux/irq.h>
+#include <linux/pm.h>
+#include <linux/delay.h>
+#include <linux/platform_device.h>
+#include <linux/module.h>
+#include <linux/device.h>
+#include <linux/vmalloc.h>
+#include <linux/fs.h>
+#include <linux/mm.h>
+#include <linux/slab.h>
+#include <linux/firmware.h>
+#include <linux/wakelock.h>
+#include <linux/blkdev.h>
+#include <linux/i2c.h>
+#include <linux/delay.h>
+#include <linux/workqueue.h>
+#include <linux/rtc.h>
+#include <mach/gpio.h>
+#include <linux/power/sec_battery_px.h>
+#include <linux/power/max17042_fuelgauge_px.h>
+
+#define PRINT_COUNT	1
+
+static struct i2c_client *fg_i2c_client;
+struct max17042_chip *max17042_chip_data;
+
+static int fg_get_battery_type(void)
+{
+	struct i2c_client *client = fg_i2c_client;
+	struct max17042_chip *chip = i2c_get_clientdata(client);
+
+	return chip->info.battery_type;
+}
+
+static int fg_i2c_read(struct i2c_client *client, u8 reg, u8 *data, u8 length)
+{
+	s32 value;
+
+	value = i2c_smbus_read_i2c_block_data(client, reg, length, data);
+	if (value < 0 || value != length) {
+		pr_err("%s: Failed to fg_i2c_read. status = %d\n",
+				__func__, value);
+		return -1;
+	}
+
+	return 0;
+}
+
+static int fg_i2c_write(struct i2c_client *client, u8 reg, u8 *data, u8 length)
+{
+	s32 value;
+
+	value = i2c_smbus_write_i2c_block_data(client, reg, length, data);
+	if (value < 0) {
+		pr_err("%s: Failed to fg_i2c_write, error code=%d\n",
+				__func__, value);
+		return -1;
+	}
+
+	return 0;
+}
+
+static int fg_read_register(u8 addr)
+{
+	struct i2c_client *client = fg_i2c_client;
+	u8 data[2];
+
+	if (fg_i2c_read(client, addr, data, 2) < 0) {
+		pr_err("%s: Failed to read addr(0x%x)\n", __func__, addr);
+		return -1;
+	}
+
+	return (data[1] << 8) | data[0];
+}
+
+static int fg_write_register(u8 addr, u16 w_data)
+{
+	struct i2c_client *client = fg_i2c_client;
+	u8 data[2];
+
+	data[0] = w_data & 0xFF;
+	data[1] = w_data >> 8;
+
+	if (fg_i2c_write(client, addr, data, 2) < 0) {
+		pr_err("%s: Failed to write addr(0x%x)\n", __func__, addr);
+		return -1;
+	}
+
+	return 0;
+}
+
+static int fg_read_16register(u8 addr, u16 *r_data)
+{
+	struct i2c_client *client = fg_i2c_client;
+	u8 data[32];
+	int i = 0;
+
+	if (fg_i2c_read(client, addr, data, 32) < 0) {
+		pr_err("%s: Failed to read addr(0x%x)\n", __func__, addr);
+		return -1;
+	}
+
+	for (i = 0; i < 16; i++)
+		r_data[i] = (data[2 * i + 1] << 8) | data[2 * i];
+
+	return 0;
+}
+
+void fg_write_and_verify_register(u8 addr, u16 w_data)
+{
+	u16 r_data;
+	u8 retry_cnt = 2;
+
+	while (retry_cnt) {
+		fg_write_register(addr, w_data);
+		r_data = fg_read_register(addr);
+
+		if (r_data != w_data) {
+			pr_err("%s: verification failed (addr : 0x%x, w_data : 0x%x, r_data : 0x%x)\n",
+				__func__, addr, w_data, r_data);
+			retry_cnt--;
+		} else
+			break;
+	}
+}
+
+static void fg_test_print(void)
+{
+	struct i2c_client *client = fg_i2c_client;
+	u8 data[2];
+	u32 average_vcell;
+	u16 w_data;
+	u32 temp;
+	u32 temp2;
+	u16 fullcap, remcap, mixcap, avcap;
+
+	if (fg_i2c_read(client, AVR_VCELL_REG, data, 2) < 0) {
+		pr_err("%s: Failed to read VCELL\n", __func__);
+		return;
+	}
+
+	w_data = (data[1]<<8) | data[0];
+
+	temp = (w_data & 0xFFF) * 78125;
+	average_vcell = temp / 1000000;
+
+	temp = ((w_data & 0xF000) >> 4) * 78125;
+	temp2 = temp / 1000000;
+	average_vcell += (temp2 << 4);
+
+	fullcap = fg_read_register(FULLCAP_REG);
+	remcap = fg_read_register(REMCAP_REP_REG);
+	mixcap = fg_read_register(REMCAP_MIX_REG);
+	avcap = fg_read_register(REMCAP_AV_REG);
+
+	pr_info("avg_vcell(%d), fullcap(%d),  remcap(%d), mixcap(%d), avcap(%d)\n",
+		average_vcell, fullcap/2, remcap/2, mixcap/2, avcap/2);
+	msleep(20);
+}
+
+static int fg_read_voltage_now(void)
+{
+	struct i2c_client *client = fg_i2c_client;
+	u8 data[2];
+	u32 voltage_now;
+	u16 w_data;
+	u32 temp;
+	u32 temp2;
+
+	if (fg_i2c_read(client, VCELL_REG, data, 2) < 0) {
+		pr_err("%s: Failed to read VCELL\n", __func__);
+		return -1;
+	}
+
+	w_data = (data[1]<<8) | data[0];
+
+	temp = (w_data & 0xFFF) * 78125;
+	voltage_now = temp / 1000;
+
+	temp = ((w_data & 0xF000) >> 4) * 78125;
+	temp2 = temp / 1000;
+	voltage_now += (temp2 << 4);
+
+	return voltage_now;
+}
+
+static int fg_read_vcell(void)
+{
+	struct i2c_client *client = fg_i2c_client;
+	struct max17042_chip *chip = i2c_get_clientdata(client);
+	u8 data[2];
+	u32 vcell;
+	u16 w_data;
+	u32 temp;
+	u32 temp2;
+
+	if (fg_i2c_read(client, VCELL_REG, data, 2) < 0) {
+		pr_err("%s: Failed to read VCELL\n", __func__);
+		return -1;
+	}
+
+	w_data = (data[1]<<8) | data[0];
+
+	temp = (w_data & 0xFFF) * 78125;
+	vcell = temp / 1000000;
+
+	temp = ((w_data & 0xF000) >> 4) * 78125;
+	temp2 = temp / 1000000;
+	vcell += (temp2 << 4);
+
+	if (!(chip->info.pr_cnt % PRINT_COUNT))
+		pr_info("%s: VCELL(%d), data(0x%04x)\n",
+			__func__, vcell, (data[1]<<8) | data[0]);
+
+	return vcell;
+}
+
+static int fg_read_avg_vcell(void)
+{
+	struct i2c_client *client = fg_i2c_client;
+	u8 data[2];
+	u32 avg_vcell;
+	u16 w_data;
+	u32 temp;
+	u32 temp2;
+
+	if (fg_i2c_read(client, AVR_VCELL_REG, data, 2) < 0) {
+		pr_err("%s: Failed to read VCELL\n", __func__);
+		return -1;
+	}
+
+	w_data = (data[1]<<8) | data[0];
+
+	temp = (w_data & 0xFFF) * 78125;
+	avg_vcell = temp / 1000000;
+
+	temp = ((w_data & 0xF000) >> 4) * 78125;
+	temp2 = temp / 1000000;
+	avg_vcell += (temp2 << 4);
+
+	return avg_vcell;
+}
+
+static int fg_read_vfocv(void)
+{
+	struct i2c_client *client = fg_i2c_client;
+	u8 data[2];
+	u32 vfocv = 0;
+	u16 w_data;
+	u32 temp;
+	u32 temp2;
+
+	if (fg_i2c_read(client, VFOCV_REG, data, 2) < 0) {
+		pr_err("%s: Failed to read VFOCV\n", __func__);
+		return -1;
+	}
+
+	w_data = (data[1]<<8) | data[0];
+
+	temp = (w_data & 0xFFF) * 78125;
+	vfocv = temp / 1000000;
+
+	temp = ((w_data & 0xF000) >> 4) * 78125;
+	temp2 = temp / 1000000;
+	vfocv += (temp2 << 4);
+
+	return vfocv;
+}
+
+static int fg_check_battery_present(void)
+{
+	struct i2c_client *client = fg_i2c_client;
+	u8 status_data[2];
+	int ret = 1;
+
+	/* 1. Check Bst bit */
+	if (fg_i2c_read(client, STATUS_REG, status_data, 2) < 0) {
+		pr_err("%s: Failed to read STATUS_REG\n", __func__);
+		return 0;
+	}
+
+	if (status_data[0] & (0x1 << 3)) {
+		pr_info("%s - addr(0x01), data(0x%04x)\n", __func__,
+				(status_data[1]<<8) | status_data[0]);
+		pr_info("%s: battery is absent!!\n", __func__);
+		ret = 0;
+	}
+
+	return ret;
+}
+
+
+static int fg_read_temp(void)
+{
+	struct i2c_client *client = fg_i2c_client;
+	struct max17042_chip *chip = i2c_get_clientdata(client);
+	u8 data[2] = { 0, };
+	int temper = 0;
+
+	if (fg_check_battery_present()) {
+		if (fg_i2c_read(client, TEMPERATURE_REG, data, 2) < 0) {
+			pr_err("%s: Failed to read TEMPERATURE_REG\n",
+					__func__);
+			return -1;
+		}
+
+		if (data[1]&(0x1 << 7)) {
+			temper = ((~(data[1]))&0xFF)+1;
+			temper *= (-1000);
+		} else {
+			temper = data[1] & 0x7f;
+			temper *= 1000;
+			temper += data[0] * 39 / 10;
+
+			/* Adjust temperature over 47, only for SDI battery */
+			if (fg_get_battery_type() == SDI_BATTERY_TYPE) {
+				if (temper >= 47000 && temper < 60000) {
+					temper = temper * SDI_TRIM1_1 / 100;
+					temper -= SDI_TRIM1_2;
+				} else if (temper >= 60000) {
+					temper = temper * SDI_TRIM2_1 / 100;
+					temper -= 51000;
+				}
+			}
+		}
+	} else
+		temper = 20000;
+
+	if (!(chip->info.pr_cnt % PRINT_COUNT))
+		pr_info("%s: TEMPERATURE(%d), data(0x%04x)\n", __func__,
+				temper, (data[1]<<8) | data[0]);
+
+	return temper;
+}
+
+static int fg_read_soc(void)
+{
+	struct i2c_client *client = fg_i2c_client;
+	struct max17042_chip *chip = i2c_get_clientdata(client);
+	u8 data[2];
+	u32 soc = 0;
+
+	if (fg_i2c_read(client, SOCREP_REG, data, 2) < 0) {
+		pr_err("%s: Failed to read SOCREP\n", __func__);
+		return -1;
+	}
+
+	soc = data[1];
+
+	if (!(chip->info.pr_cnt % PRINT_COUNT))
+		pr_info("%s: SOC(%d), data(0x%04x)\n", __func__,
+				soc, (data[1]<<8) | data[0]);
+
+	return soc;
+}
+
+static int fg_read_vfsoc(void)
+{
+	struct i2c_client *client = fg_i2c_client;
+	u8 data[2];
+
+	if (fg_i2c_read(client, VFSOC_REG, data, 2) < 0) {
+		pr_err("%s: Failed to read VFSOC\n", __func__);
+		return -1;
+	}
+
+	return (int)data[1];
+}
+
+static int fg_read_current(void)
+{
+	struct i2c_client *client = fg_i2c_client;
+	struct max17042_chip *chip = i2c_get_clientdata(client);
+	u8 data1[2], data2[2];
+	u32 temp, sign;
+	s32 i_current;
+	s32 avg_current;
+
+	if (fg_i2c_read(client, CURRENT_REG, data1, 2) < 0) {
+		pr_err("%s: Failed to read CURRENT\n", __func__);
+		return -1;
+	}
+
+	if (fg_i2c_read(client, AVG_CURRENT_REG, data2, 2) < 0) {
+		pr_err("%s: Failed to read AVERAGE CURRENT\n", __func__);
+		return -1;
+	}
+
+	temp = ((data1[1]<<8) | data1[0]) & 0xFFFF;
+	if (temp & (0x1 << 15)) {
+		sign = NEGATIVE;
+		temp = (~temp & 0xFFFF) + 1;
+	} else
+		sign = POSITIVE;
+
+	i_current = temp * MAX17042_CURRENT_UNIT;
+	if (sign)
+		i_current *= -1;
+
+	temp = ((data2[1]<<8) | data2[0]) & 0xFFFF;
+	if (temp & (0x1 << 15)) {
+		sign = NEGATIVE;
+		temp = (~temp & 0xFFFF) + 1;
+	} else
+		sign = POSITIVE;
+
+	avg_current = temp * MAX17042_CURRENT_UNIT;
+	if (sign)
+		avg_current *= -1;
+
+	if (!(chip->info.pr_cnt++ % PRINT_COUNT)) {
+		fg_test_print();
+		pr_info("%s: CURRENT(%dmA), AVG_CURRENT(%dmA)\n", __func__,
+				i_current, avg_current);
+		chip->info.pr_cnt = 1;
+		/* Read max17042's all registers every 5 minute. */
+		fg_periodic_read();
+	}
+
+	return i_current;
+}
+
+static int fg_read_avg_current(void)
+{
+	struct i2c_client *client = fg_i2c_client;
+	u8  data2[2];
+	u32 temp, sign;
+	s32 avg_current;
+
+	if (fg_i2c_read(client, AVG_CURRENT_REG, data2, 2) < 0) {
+		pr_err("%s: Failed to read AVERAGE CURRENT\n", __func__);
+		return -1;
+	}
+
+	temp = ((data2[1]<<8) | data2[0]) & 0xFFFF;
+	if (temp & (0x1 << 15)) {
+		sign = NEGATIVE;
+		temp = (~temp & 0xFFFF) + 1;
+	} else
+		sign = POSITIVE;
+
+	avg_current = temp * MAX17042_CURRENT_UNIT;
+
+	if (sign)
+		avg_current *= -1;
+
+	return avg_current;
+}
+
+int fg_reset_soc(void)
+{
+	struct i2c_client *client = fg_i2c_client;
+	struct max17042_chip *chip = i2c_get_clientdata(client);
+	u8 data[2];
+#if defined(CONFIG_MACH_P8) || defined(CONFIG_MACH_P8LTE)
+	u32 fullcap;
+	int vfocv = 0;
+#endif
+
+	/* delay for current stablization */
+	msleep(500);
+
+	pr_info("%s: %s - VCELL(%d), VFOCV(%d), VfSOC(%d), RepSOC(%d)\n",
+		__func__, "Before quick-start", fg_read_vcell(),
+		fg_read_vfocv(), fg_read_vfsoc(), fg_read_soc());
+	pr_info("%s: Before quick-start - current(%d), avg current(%d)\n",
+		__func__, fg_read_current(),
+		fg_read_avg_current());
+
+	if (!chip->pdata->check_jig_status()) {
+		pr_info("%s: Return by No JIG_ON signal\n", __func__);
+		return 0;
+	}
+
+	fg_write_register(CYCLES_REG, 0);
+
+	if (fg_i2c_read(client, MISCCFG_REG, data, 2) < 0) {
+		pr_err("%s: Failed to read MiscCFG\n", __func__);
+		return -1;
+	}
+
+	data[1] |= (0x1 << 2);
+	if (fg_i2c_write(client, MISCCFG_REG, data, 2) < 0) {
+		pr_err("%s: Failed to write MiscCFG\n", __func__);
+		return -1;
+	}
+
+	msleep(250);
+	fg_write_register(FULLCAP_REG, chip->info.capacity);
+	msleep(500);
+
+	pr_info("%s: %s - VCELL(%d), VFOCV(%d), VfSOC(%d), RepSOC(%d)\n",
+		__func__, "After quick-start", fg_read_vcell(),
+		fg_read_vfocv(), fg_read_vfsoc(), fg_read_soc());
+	pr_info("%s: After quick-start - current(%d), avg current(%d)\n",
+		__func__, fg_read_current(), fg_read_avg_current());
+	fg_write_register(CYCLES_REG, 0x00a0);
+
+/* P8 is not turned off by Quickstart @3.4V(It's not a problem, depend on
+ * mode data. Power off for factory test(File system, etc..) */
+#if defined(CONFIG_MACH_P8) || defined(CONFIG_MACH_P8LTE)
+#define QUICKSTART_POWER_OFF_VOLTAGE	3400
+	vfocv = fg_read_vfocv();
+	if (vfocv < QUICKSTART_POWER_OFF_VOLTAGE) {
+		pr_info("%s: Power off condition(%d)\n", __func__, vfocv);
+
+		fullcap = fg_read_register(FULLCAP_REG);
+		/* FullCAP * 0.009 */
+		fg_write_register(REMCAP_REP_REG, (u16)(fullcap * 9 / 1000));
+		msleep(200);
+		pr_info("%s: new soc=%d, vfocv=%d\n", __func__,
+				fg_read_soc(), vfocv);
+	}
+
+	pr_info("%s: Additional step - VfOCV(%d), VfSOC(%d), RepSOC(%d)\n",
+		__func__, fg_read_vfocv(), fg_read_vfsoc(), fg_read_soc());
+#endif
+
+	return 0;
+}
+
+
+int fg_reset_capacity(void)
+{
+	struct i2c_client *client = fg_i2c_client;
+	struct max17042_chip *chip = i2c_get_clientdata(client);
+
+	return fg_write_register(DESIGNCAP_REG, chip->info.vfcapacity-1);
+}
+
+int fg_adjust_capacity(void)
+{
+	struct i2c_client *client = fg_i2c_client;
+	struct max17042_chip *chip = i2c_get_clientdata(client);
+	u8 data[2];
+
+	data[0] = 0;
+	data[1] = 0;
+
+	/* 1. Write RemCapREP(05h)=0; */
+	if (fg_i2c_write(client, REMCAP_REP_REG, data, 2) < 0) {
+		pr_err("%s: Failed to write RemCap_REP\n", __func__);
+		return -1;
+	}
+	msleep(200);
+
+	pr_info("%s: After adjust - RepSOC(%d)\n", __func__, fg_read_soc());
+
+	chip->info.soc_restart_flag = 1;
+
+	return 0;
+}
+
+void fg_low_batt_compensation(u32 level)
+{
+	struct i2c_client *client = fg_i2c_client;
+	struct max17042_chip *chip = i2c_get_clientdata(client);
+	int read_val;
+	u32 temp;
+
+	pr_info("%s: Adjust SOCrep to %d!!\n", __func__, level);
+
+	read_val = fg_read_register(FULLCAP_REG);
+	if (read_val < 0)
+		return;
+
+	/* RemCapREP (05h) = FullCap(10h) x 0.0304 or 0.0104 */
+	temp = read_val * (level*100 + 4) / 10000;
+	fg_write_register(REMCAP_REP_REG, (u16)temp);
+
+	/* (0x67) * 0.0039 = 0.4%*/
+	temp = 0;
+	temp = (u16)((level << 8) | 0x67);
+	fg_write_register(SOCREP_REG, temp);
+
+	chip->info.low_batt_comp_flag = 1;
+}
+
+void fg_periodic_read(void)
+{
+	int i;
+	u16 data[0x10];
+	struct timespec ts;
+	struct rtc_time tm;
+
+	getnstimeofday(&ts);
+	rtc_time_to_tm(ts.tv_sec, &tm);
+
+	pr_info("[MAX17042] %d/%d/%d %02d:%02d,",
+		tm.tm_mday, tm.tm_mon + 1, tm.tm_year + 1900, tm.tm_hour,
+		tm.tm_min);
+
+	for (i = 0; i < 16; i++) {
+		fg_read_16register(i, data);
+
+		pr_info("%04xh,%04xh,%04xh,%04xh,%04xh,%04xh,%04xh,%04xh,",
+			data[0x00], data[0x01], data[0x02], data[0x03],
+			data[0x04], data[0x05], data[0x06], data[0x07]);
+		pr_info("%04xh,%04xh,%04xh,%04xh,%04xh,%04xh,%04xh,%04xh,",
+			data[0x08], data[0x09], data[0x0a], data[0x0b],
+			data[0x0c], data[0x0d], data[0x0e], data[0x0f]);
+		if (i == 4)
+			i = 13;
+
+		msleep(20);
+	}
+	pr_info("\n");
+}
+
+static void fg_read_model_data(void)
+{
+	u16 data0[16], data1[16], data2[16];
+	int i;
+	int relock_check;
+
+	pr_info("[FG_Model] ");
+
+	/* Unlock model access */
+	fg_write_register(0x62, 0x0059);
+	fg_write_register(0x63, 0x00C4);
+
+	/* Read model data */
+	fg_read_16register(0x80, data0);
+	fg_read_16register(0x90, data1);
+	fg_read_16register(0xa0, data2);
+
+	/* Print model data */
+	for (i = 0; i < 16; i++)
+		pr_info("0x%04x, ", data0[i]);
+
+	for (i = 0; i < 16; i++)
+		pr_info("0x%04x, ", data1[i]);
+
+	for (i = 0; i < 16; i++) {
+		if (i == 15)
+			pr_info("0x%04x", data2[i]);
+		else
+			pr_info("0x%04x, ", data2[i]);
+	}
+
+	do {
+		relock_check = 0;
+		/* Lock model access */
+		fg_write_register(0x62, 0x0000);
+		fg_write_register(0x63, 0x0000);
+
+		/* Read model data again */
+		fg_read_16register(0x80, data0);
+		fg_read_16register(0x90, data1);
+		fg_read_16register(0xa0, data2);
+
+		for (i = 0; i < 16; i++) {
+			if (data0[i] || data1[i] || data2[i]) {
+				pr_info("%s: data is non-zero, lock again!\n",
+						__func__);
+				relock_check = 1;
+			}
+		}
+	} while (relock_check);
+
+}
+
+int fg_alert_init(void)
+{
+	struct i2c_client *client = fg_i2c_client;
+	u8 misccgf_data[2];
+	u8 salrt_data[2];
+	u8 config_data[2];
+	u8 valrt_data[2];
+	u8 talrt_data[2];
+	u16 read_data = 0;
+
+	/* Using RepSOC */
+	if (fg_i2c_read(client, MISCCFG_REG, misccgf_data, 2) < 0) {
+		pr_err("%s: Failed to read MISCCFG_REG\n", __func__);
+		return -1;
+	}
+	misccgf_data[0] = misccgf_data[0] & ~(0x03);
+
+	if (fg_i2c_write(client, MISCCFG_REG, misccgf_data, 2) < 0) {
+		pr_info("%s: Failed to write MISCCFG_REG\n", __func__);
+		return -1;
+	}
+
+	/* SALRT Threshold setting */
+	salrt_data[1] = 0xff;
+	salrt_data[0] = 0x01;
+	if (fg_i2c_write(client, SALRT_THRESHOLD_REG, salrt_data, 2) < 0) {
+		pr_info("%s: Failed to write SALRT_THRESHOLD_REG\n", __func__);
+		return -1;
+	}
+
+	/* Reset VALRT Threshold setting (disable) */
+	valrt_data[1] = 0xFF;
+	valrt_data[0] = 0x00;
+	if (fg_i2c_write(client, VALRT_THRESHOLD_REG, valrt_data, 2) < 0) {
+		pr_info("%s: Failed to write VALRT_THRESHOLD_REG\n", __func__);
+		return -1;
+	}
+
+	read_data = fg_read_register((u8)VALRT_THRESHOLD_REG);
+	if (read_data != 0xff00)
+		pr_err("%s: VALRT_THRESHOLD_REG is not valid (0x%x)\n",
+				__func__, read_data);
+
+	/* Reset TALRT Threshold setting (disable) */
+	talrt_data[1] = 0x7F;
+	talrt_data[0] = 0x80;
+	if (fg_i2c_write(client, TALRT_THRESHOLD_REG, talrt_data, 2) < 0) {
+		pr_info("%s: Failed to write TALRT_THRESHOLD_REG\n", __func__);
+		return -1;
+	}
+
+	read_data = fg_read_register((u8)TALRT_THRESHOLD_REG);
+	if (read_data != 0x7f80)
+		pr_err("%s: TALRT_THRESHOLD_REG is not valid (0x%x)\n",
+				__func__, read_data);
+
+	mdelay(100);
+
+	/* Enable SOC alerts */
+	if (fg_i2c_read(client, CONFIG_REG, config_data, 2) < 0) {
+		pr_err("%s: Failed to read CONFIG_REG\n", __func__);
+		return -1;
+	}
+	config_data[0] = config_data[0] | (0x1 << 2);
+
+	if (fg_i2c_write(client, CONFIG_REG, config_data, 2) < 0) {
+		pr_info("%s: Failed to write CONFIG_REG\n", __func__);
+		return -1;
+	}
+
+	return 1;
+}
+
+static int fg_check_status_reg(void)
+{
+	struct i2c_client *client = fg_i2c_client;
+	u8 status_data[2];
+	int ret = 0;
+
+	/* 1. Check Smn was generatedread */
+	if (fg_i2c_read(client, STATUS_REG, status_data, 2) < 0) {
+		pr_err("%s: Failed to read STATUS_REG\n", __func__);
+		return -1;
+	}
+	pr_info("%s - addr(0x00), data(0x%04x)\n", __func__,
+			(status_data[1]<<8) | status_data[0]);
+
+	if (status_data[1] & (0x1 << 2))
+		ret = 1;
+
+	/* 2. clear Status reg */
+	status_data[1] = 0;
+	if (fg_i2c_write(client, STATUS_REG, status_data, 2) < 0) {
+		pr_info("%s: Failed to write STATUS_REG\n", __func__);
+		return -1;
+	}
+
+	return ret;
+}
+
+void fg_fullcharged_compensation(u32 is_recharging, u32 pre_update)
+{
+	struct i2c_client *client = fg_i2c_client;
+	struct max17042_chip *chip = i2c_get_clientdata(client);
+	static int new_fcap;
+	pr_info("%s: is_recharging(%d), pre_update(%d)\n", __func__,
+					is_recharging, pre_update);
+
+	new_fcap = fg_read_register(FULLCAP_REG);
+	if (new_fcap < 0)
+		new_fcap = chip->info.capacity;
+
+	pr_info("%s: prevFCap(0x%04x), newFcap(0x%04x)\n", __func__,
+			chip->info.prev_fullcap, new_fcap);
+	if (new_fcap > (chip->info.capacity * 110 / 100)) {
+		new_fcap = (chip->info.capacity * 110) / 100;
+		pr_info("%s: init FCap +10%%: newFcap(0x%04x)\n",
+						__func__, new_fcap);
+		fg_write_register(REMCAP_REP_REG, (u16)(new_fcap));
+		fg_write_register(FULLCAP_REG, (u16)(new_fcap));
+	} else if (new_fcap < (chip->info.capacity * 50 / 100)) {
+		new_fcap = (chip->info.capacity * 50) / 100;
+		pr_info("%s: init FCap -50%%: newFcap(0x%04x)\n",
+						__func__, new_fcap);
+		fg_write_register(REMCAP_REP_REG, (u16)(new_fcap));
+		fg_write_register(FULLCAP_REG, (u16)(new_fcap));
+	} else {
+		if (new_fcap > (chip->info.prev_fullcap * 110 / 100)) {
+			new_fcap = (chip->info.prev_fullcap * 110) / 100;
+			pr_info("%s: prev FCap +10%%: newFcap(0x%04x)\n",
+						__func__, new_fcap);
+			fg_write_register(REMCAP_REP_REG, (u16)(new_fcap));
+			fg_write_register(FULLCAP_REG, (u16)(new_fcap));
+		} else if (new_fcap < (chip->info.prev_fullcap * 90 / 100)) {
+			new_fcap = (chip->info.prev_fullcap * 90) / 100;
+			pr_info("%s: prev FCap -10%%: newFcap(0x%04x)\n",
+						__func__, new_fcap);
+			fg_write_register(REMCAP_REP_REG, (u16)(new_fcap));
+			fg_write_register(FULLCAP_REG, (u16)(new_fcap));
+		} else {
+			pr_info("%s: keep FCap: newFcap(0x%04x)\n",
+						__func__, new_fcap);
+		}
+	}
+
+	/* 4. Write RepSOC(06h)=100%; */
+	fg_write_register(SOCREP_REG, (u16)(0x64 << 8));
+
+	/* 5. Write MixSOC(0Dh)=100%; */
+	fg_write_register(SOCMIX_REG, (u16)(0x64 << 8));
+
+	/* 6. Write AVSOC(0Eh)=100%; */
+	fg_write_register(SOCAV_REG, (u16)(0x64 << 8));
+
+	/* if pre_update case, skip updating PrevFullCAP value. */
+	if (!pre_update)
+		chip->info.prev_fullcap = fg_read_register(FULLCAP_REG);
+
+	pr_info("%s: FullCap(0x%04x), RemCap(0x%04x)\n", __func__,
+				fg_read_register(FULLCAP_REG),
+				fg_read_register(REMCAP_REP_REG));
+
+	fg_periodic_read();
+}
+
+void fg_check_vf_fullcap_range(void)
+{
+	struct i2c_client *client = fg_i2c_client;
+	struct max17042_chip *chip = i2c_get_clientdata(client);
+	static int new_vffcap;
+	u16 print_flag = 1;
+	pr_debug("%s\n", __func__);
+
+	new_vffcap = fg_read_register(FULLCAP_NOM_REG);
+	if (new_vffcap < 0)
+		new_vffcap = chip->info.vfcapacity;
+
+	pr_info("%s: prevVFFCap(0x%04x), newVFFcap(0x%04x)\n", __func__,
+			chip->info.prev_vffcap, new_vffcap);
+	if (new_vffcap > (chip->info.vfcapacity * 110 / 100)) {
+		new_vffcap = (chip->info.vfcapacity * 110) / 100;
+		pr_info("%s: init VFFCap +10%%: newVFFcap(0x%04x)\n",
+						__func__, new_vffcap);
+		fg_write_register(DQACC_REG, (u16)(new_vffcap / 4));
+		fg_write_register(DPACC_REG, (u16)0x3200);
+	} else if (new_vffcap < (chip->info.vfcapacity * 50 / 100)) {
+		new_vffcap = (chip->info.vfcapacity * 50) / 100;
+		pr_info("%s: init VFFCap -50%%: newVFFcap(0x%04x)\n",
+						__func__, new_vffcap);
+		fg_write_register(DQACC_REG, (u16)(new_vffcap / 4));
+		fg_write_register(DPACC_REG, (u16)0x3200);
+	} else {
+		if (new_vffcap > (chip->info.prev_vffcap * 105 / 100)) {
+			new_vffcap = (chip->info.prev_vffcap * 105) / 100;
+			pr_info("%s: prev VFFCap +10%%: newVFFcap(0x%04x)\n",
+							__func__, new_vffcap);
+			fg_write_register(DQACC_REG, (u16)(new_vffcap / 4));
+			fg_write_register(DPACC_REG, (u16)0x3200);
+		} else if (new_vffcap < (chip->info.prev_vffcap * 90 / 100)) {
+			new_vffcap = (chip->info.prev_vffcap * 90) / 100;
+			pr_info("%s: prev VFFCap -10%%: newVFFcap(0x%04x)\n",
+						__func__, new_vffcap);
+			fg_write_register(DQACC_REG, (u16)(new_vffcap / 4));
+			fg_write_register(DPACC_REG, (u16)0x3200);
+		} else {
+			pr_info("%s: keep VFFCap: newVFFcap(0x%04x)\n",
+						__func__, new_vffcap);
+			print_flag = 0;
+		}
+	}
+
+	/* delay for register setting (dQacc, dPacc) */
+	if (print_flag)
+		msleep(300);
+
+	chip->info.prev_vffcap = fg_read_register(FULLCAP_NOM_REG);
+
+	if (print_flag)
+		pr_info("%s: VfFullCap(0x%04x), dQacc(0x%04x), dPacc(0x%04x)\n",
+			__func__,
+			fg_read_register(FULLCAP_NOM_REG),
+			fg_read_register(DQACC_REG),
+			fg_read_register(DPACC_REG));
+}
+
+int fg_check_cap_corruption(void)
+{
+	struct i2c_client *client = fg_i2c_client;
+	struct max17042_chip *chip = i2c_get_clientdata(client);
+	int vfsoc = fg_read_vfsoc();
+	int repsoc = fg_read_soc();
+	int mixcap = fg_read_register(REMCAP_MIX_REG);
+	int vfocv = fg_read_register(VFOCV_REG);
+	int remcap = fg_read_register(REMCAP_REP_REG);
+	int fullcapacity = fg_read_register(FULLCAP_REG);
+	int vffullcapacity = fg_read_register(FULLCAP_NOM_REG);
+	u32 temp, temp2, new_vfocv, pr_vfocv;
+	int designcap;
+	int ret = 0;
+
+	/* If usgin Jig or low batt compensation flag is set,
+	   then skip checking. */
+	if (chip->pdata->check_jig_status()) {
+		fg_write_register(DESIGNCAP_REG, chip->info.vfcapacity - 1);
+		designcap = fg_read_register(DESIGNCAP_REG);
+		pr_info("%s: return by jig, vfcap(0x%04x), designcap(0x%04x)\n",
+				__func__, chip->info.vfcapacity, designcap);
+		return 0;
+	}
+
+	if (vfsoc < 0 || repsoc < 0 || mixcap < 0 || vfocv < 0 ||
+		remcap < 0 || fullcapacity < 0 || vffullcapacity < 0)
+		return 0;
+
+	/* Check full charge learning case. */
+	if (((vfsoc >= 70)
+		&& ((remcap >= (fullcapacity * 995 / 1000))
+		&& (remcap <= (fullcapacity * 1005 / 1000))))
+		|| chip->info.low_batt_comp_flag
+		|| chip->info.soc_restart_flag) {
+
+		chip->info.prev_repsoc = repsoc;
+		chip->info.prev_remcap = remcap;
+		chip->info.prev_fullcapacity = fullcapacity;
+		if (chip->info.soc_restart_flag)
+			chip->info.soc_restart_flag = 0;
+
+		ret = 1;
+	}
+
+	/* ocv calculation for print */
+	temp = (vfocv & 0xFFF) * 78125;
+	pr_vfocv = temp / 1000000;
+
+	temp = ((vfocv & 0xF000) >> 4) * 78125;
+	temp2 = temp / 1000000;
+	pr_vfocv += (temp2 << 4);
+
+	/* MixCap differ is greater than 265mAh */
+	if ((((vfsoc+5) < chip->info.prev_vfsoc)
+			|| (vfsoc > (chip->info.prev_vfsoc+5)))
+		|| (((repsoc+5) < chip->info.prev_repsoc)
+			|| (repsoc > (chip->info.prev_repsoc+5)))
+		|| (((mixcap+530) < chip->info.prev_mixcap)
+			|| (mixcap > (chip->info.prev_mixcap+530)))) {
+		fg_periodic_read();
+
+		pr_info("[FG_Recovery] (B) VfSOC(%d), prevVfSOC(%d),",
+			vfsoc, chip->info.prev_vfsoc);
+		pr_info(" RepSOC(%d), prevRepSOC(%d), MixCap(%d),",
+			repsoc, chip->info.prev_repsoc, (mixcap/2));
+		pr_info(" prevMixCap(%d),VfOCV(0x%04x, %d)\n",
+			(chip->info.prev_mixcap/2), vfocv, pr_vfocv);
+
+		mutex_lock(&chip->fg_lock);
+
+		fg_write_and_verify_register(REMCAP_MIX_REG,
+						chip->info.prev_mixcap);
+		fg_write_register(VFOCV_REG, chip->info.prev_vfocv);
+		mdelay(200);
+
+		fg_write_and_verify_register(REMCAP_REP_REG,
+						chip->info.prev_remcap);
+		vfsoc = fg_read_register(VFSOC_REG);
+		fg_write_register(0x60, 0x0080);
+		fg_write_and_verify_register(0x48, vfsoc);
+		fg_write_register(0x60, 0x0000);
+
+		fg_write_and_verify_register(0x45,
+				(chip->info.prev_vfcapacity / 4));
+		fg_write_and_verify_register(0x46, 0x3200);
+		fg_write_and_verify_register(FULLCAP_REG,
+				chip->info.prev_fullcapacity);
+		fg_write_and_verify_register(FULLCAP_NOM_REG,
+				chip->info.prev_vfcapacity);
+
+		mutex_unlock(&chip->fg_lock);
+
+		msleep(200);
+
+		/* ocv calculation for print */
+		new_vfocv = fg_read_register(VFOCV_REG);
+		temp = (new_vfocv & 0xFFF) * 78125;
+		pr_vfocv = temp / 1000000;
+
+		temp = ((new_vfocv & 0xF000) >> 4) * 78125;
+		temp2 = temp / 1000000;
+		pr_vfocv += (temp2 << 4);
+
+		pr_info("[FG_Recovery] (A) newVfSOC(%d), newRepSOC(%d),",
+			fg_read_vfsoc(),
+			fg_read_soc());
+		pr_info(" newMixCap(%d), newVfOCV(0x%04x, %d)\n",
+			(fg_read_register(REMCAP_MIX_REG)/2),
+			new_vfocv,
+			pr_vfocv);
+
+		fg_periodic_read();
+
+		ret = 1;
+	} else {
+		chip->info.prev_vfsoc = vfsoc;
+		chip->info.prev_repsoc = repsoc;
+		chip->info.prev_remcap = remcap;
+		chip->info.prev_mixcap = mixcap;
+		chip->info.prev_fullcapacity = fullcapacity;
+		chip->info.prev_vfcapacity = vffullcapacity;
+		chip->info.prev_vfocv = vfocv;
+	}
+
+	return ret;
+}
+
+void fg_set_full_charged(void)
+{
+	pr_info("[FG_Set_Full] (B) FullCAP(%d), RemCAP(%d)\n",
+		(fg_read_register(FULLCAP_REG)/2),
+		(fg_read_register(REMCAP_REP_REG)/2));
+
+	fg_write_register(FULLCAP_REG, (u16)fg_read_register(REMCAP_REP_REG));
+
+	pr_info("[FG_Set_Full] (A) FullCAP(%d), RemCAP(%d)\n",
+		(fg_read_register(FULLCAP_REG)/2),
+		(fg_read_register(REMCAP_REP_REG)/2));
+}
+
+static void display_low_batt_comp_cnt(void)
+{
+	struct i2c_client *client = fg_i2c_client;
+	struct max17042_chip *chip = i2c_get_clientdata(client);
+	u8 type_str[10];
+
+	if (fg_get_battery_type() == SDI_BATTERY_TYPE)
+		sprintf(type_str, "SDI");
+	else if (fg_get_battery_type() == ATL_BATTERY_TYPE)
+		sprintf(type_str, "ATL");
+	else
+		sprintf(type_str, "Unknown");
+
+	pr_info("Check Array(%s):[%d,%d], [%d,%d], [%d,%d], [%d,%d], [%d,%d]\n",
+			type_str,
+			chip->info.low_batt_comp_cnt[0][0],
+			chip->info.low_batt_comp_cnt[0][1],
+			chip->info.low_batt_comp_cnt[1][0],
+			chip->info.low_batt_comp_cnt[1][1],
+			chip->info.low_batt_comp_cnt[2][0],
+			chip->info.low_batt_comp_cnt[2][1],
+			chip->info.low_batt_comp_cnt[3][0],
+			chip->info.low_batt_comp_cnt[3][1],
+			chip->info.low_batt_comp_cnt[4][0],
+			chip->info.low_batt_comp_cnt[4][1]);
+}
+
+static void add_low_batt_comp_cnt(int range, int level)
+{
+	struct i2c_client *client = fg_i2c_client;
+	struct max17042_chip *chip = i2c_get_clientdata(client);
+	int i;
+	int j;
+
+	/* Increase the requested count value, and reset others. */
+	chip->info.low_batt_comp_cnt[range-1][level/2]++;
+
+	for (i = 0; i < LOW_BATT_COMP_RANGE_NUM; i++) {
+		for (j = 0; j < LOW_BATT_COMP_LEVEL_NUM; j++) {
+			if (i == range-1 && j == level/2)
+				continue;
+			else
+				chip->info.low_batt_comp_cnt[i][j] = 0;
+		}
+	}
+}
+
+#define POWER_OFF_SOC_HIGH_MARGIN	0x200
+#define POWER_OFF_VOLTAGE_HIGH_MARGIN	3500
+#define POWER_OFF_VOLTAGE_NOW_LOW_MARGIN	3350
+#define POWER_OFF_VOLTAGE_AVG_LOW_MARGIN	3400
+
+void prevent_early_late_poweroff(int vcell, int *fg_soc)
+{
+	struct i2c_client *client = fg_i2c_client;
+	int repsoc, repsoc_data = 0;
+	int read_val;
+	int avg_vcell;
+	u8 data[2];
+
+	if (fg_i2c_read(client, SOCREP_REG, data, 2) < 0) {
+		pr_err("%s: Failed to read SOCREP\n", __func__);
+		return;
+	}
+	repsoc = data[1];
+	repsoc_data = ((data[1] << 8) | data[0]);
+
+	if (repsoc_data > POWER_OFF_SOC_HIGH_MARGIN)
+		return;
+
+	avg_vcell = fg_read_avg_vcell();
+	pr_info("%s: soc=%d%%(0x%04x), vcell=%d avg_vcell=%d\n",
+			__func__, repsoc, repsoc_data, vcell, avg_vcell);
+
+	if (vcell > POWER_OFF_VOLTAGE_HIGH_MARGIN) {
+		read_val = fg_read_register(FULLCAP_REG);
+		/* FullCAP * 0.013 */
+		fg_write_register(REMCAP_REP_REG, (u16)(read_val * 13 / 1000));
+		msleep(200);
+		*fg_soc = fg_read_soc();
+		pr_info("%s: new soc=%d, vcell=%d, avg_vcell=%d\n",
+				__func__, *fg_soc, vcell, avg_vcell);
+	} else if ((vcell < POWER_OFF_VOLTAGE_NOW_LOW_MARGIN) &&
+		(avg_vcell < POWER_OFF_VOLTAGE_AVG_LOW_MARGIN)) {
+		read_val = fg_read_register(FULLCAP_REG);
+		/* FullCAP * 0.009 */
+		fg_write_register(REMCAP_REP_REG, (u16)(read_val * 9 / 1000));
+		msleep(200);
+		*fg_soc = fg_read_soc();
+		pr_info("%s: new soc=%d, vcell=%d, avg_vcell=%d\n",
+				__func__, *fg_soc, vcell, avg_vcell);
+	}
+}
+
+void reset_low_batt_comp_cnt(void)
+{
+	struct i2c_client *client = fg_i2c_client;
+	struct max17042_chip *chip = i2c_get_clientdata(client);
+
+	memset(chip->info.low_batt_comp_cnt, 0,
+			sizeof(chip->info.low_batt_comp_cnt));
+}
+
+static int check_low_batt_comp_condtion(int *nLevel)
+{
+	struct i2c_client *client = fg_i2c_client;
+	struct max17042_chip *chip = i2c_get_clientdata(client);
+	int i;
+	int j;
+	int ret = 0;
+
+	for (i = 0; i < LOW_BATT_COMP_RANGE_NUM; i++) {
+		for (j = 0; j < LOW_BATT_COMP_LEVEL_NUM; j++) {
+			if (chip->info.low_batt_comp_cnt[i][j] \
+						>= MAX_LOW_BATT_CHECK_CNT) {
+				display_low_batt_comp_cnt();
+				ret = 1;
+				*nLevel = j*2 + 1;
+				break;
+			}
+		}
+	}
+
+	return ret;
+}
+
+static int get_low_batt_threshold(int range, int level, int nCurrent)
+{
+	int ret = 0;
+
+	if (fg_get_battery_type() == SDI_BATTERY_TYPE) {
+		switch (range) {
+/* P4 & P8 needs one more level */
+#if defined(CONFIG_MACH_P4NOTE) \
+	|| defined(CONFIG_MACH_P8) || defined(CONFIG_MACH_P8LTE)
+		case 5:
+			if (level == 1)
+				ret = SDI_Range5_1_Offset + \
+				      ((nCurrent * SDI_Range5_1_Slope) / 1000);
+			else if (level == 3)
+				ret = SDI_Range5_3_Offset + \
+				      ((nCurrent * SDI_Range5_3_Slope) / 1000);
+			break;
+#endif
+		case 4:
+			if (level == 1)
+				ret = SDI_Range4_1_Offset + \
+				      ((nCurrent * SDI_Range4_1_Slope) / 1000);
+			else if (level == 3)
+				ret = SDI_Range4_3_Offset + \
+				      ((nCurrent * SDI_Range4_3_Slope) / 1000);
+			break;
+
+		case 3:
+			if (level == 1)
+				ret = SDI_Range3_1_Offset + \
+				      ((nCurrent * SDI_Range3_1_Slope) / 1000);
+			else if (level == 3)
+				ret = SDI_Range3_3_Offset + \
+				      ((nCurrent * SDI_Range3_3_Slope) / 1000);
+			break;
+
+		case 2:
+			if (level == 1)
+				ret = SDI_Range2_1_Offset + \
+				      ((nCurrent * SDI_Range2_1_Slope) / 1000);
+			else if (level == 3)
+				ret = SDI_Range2_3_Offset + \
+				      ((nCurrent * SDI_Range2_3_Slope) / 1000);
+			break;
+
+		case 1:
+			if (level == 1)
+				ret = SDI_Range1_1_Offset + \
+				      ((nCurrent * SDI_Range1_1_Slope) / 1000);
+			else if (level == 3)
+				ret = SDI_Range1_3_Offset + \
+				      ((nCurrent * SDI_Range1_3_Slope) / 1000);
+			break;
+
+		default:
+			break;
+		}
+	}  else if (fg_get_battery_type() == ATL_BATTERY_TYPE) {
+		switch (range) {
+		case 4:
+			if (level == 1)
+				ret = ATL_Range4_1_Offset + \
+				      ((nCurrent * ATL_Range4_1_Slope) / 1000);
+			else if (level == 3)
+				ret = ATL_Range4_3_Offset + \
+				      ((nCurrent * ATL_Range4_3_Slope) / 1000);
+			break;
+
+		case 3:
+			if (level == 1)
+				ret = ATL_Range3_1_Offset + \
+				      ((nCurrent * ATL_Range3_1_Slope) / 1000);
+			else if (level == 3)
+				ret = ATL_Range3_3_Offset + \
+				      ((nCurrent * ATL_Range3_3_Slope) / 1000);
+			break;
+
+		case 2:
+			if (level == 1)
+				ret = ATL_Range2_1_Offset + \
+				      ((nCurrent * ATL_Range2_1_Slope) / 1000);
+			else if (level == 3)
+				ret = ATL_Range2_3_Offset + \
+				      ((nCurrent * ATL_Range2_3_Slope) / 1000);
+			break;
+
+		case 1:
+			if (level == 1)
+				ret = ATL_Range1_1_Offset + \
+				      ((nCurrent * ATL_Range1_1_Slope) / 1000);
+			else if (level == 3)
+				ret = ATL_Range1_3_Offset + \
+				      ((nCurrent * ATL_Range1_3_Slope) / 1000);
+			break;
+
+		default:
+			break;
+		}
+	}
+
+	return ret;
+}
+
+int low_batt_compensation(int fg_soc, int fg_vcell, int fg_current)
+{
+	struct i2c_client *client = fg_i2c_client;
+	struct max17042_chip *chip = i2c_get_clientdata(client);
+	int fg_avg_current = 0;
+	int fg_min_current = 0;
+	int new_level = 0;
+	int bCntReset = 0;
+
+	/* Not charging, flag is none, Under 3.60V or 3.45V */
+	if (!chip->info.low_batt_comp_flag && \
+			(fg_vcell <= chip->info.check_start_vol)) {
+
+		fg_avg_current = fg_read_avg_current();
+		fg_min_current = min(fg_avg_current, fg_current);
+
+		if (fg_min_current < CURRENT_RANGE_MAX) {
+			if (fg_soc >= 2 && \
+				fg_vcell < get_low_batt_threshold( \
+						CURRENT_RANGE_MAX_NUM,
+						1, fg_min_current))
+				add_low_batt_comp_cnt(CURRENT_RANGE_MAX_NUM, 1);
+			else if (fg_soc >= 4 && \
+				fg_vcell < get_low_batt_threshold( \
+						CURRENT_RANGE_MAX_NUM,
+						3, fg_min_current))
+				add_low_batt_comp_cnt(CURRENT_RANGE_MAX_NUM, 3);
+			else
+				bCntReset = 1;
+		}
+/* P4 & P8 needs more level */
+#if defined(CONFIG_MACH_P4NOTE) \
+	|| defined(CONFIG_MACH_P8) || defined(CONFIG_MACH_P8LTE)
+		else if (fg_min_current >= CURRENT_RANGE5 && \
+				fg_min_current < CURRENT_RANGE4) {
+			if (fg_soc >= 2 && fg_vcell < \
+				get_low_batt_threshold(4, 1, fg_min_current))
+
+				add_low_batt_comp_cnt(4, 1);
+			else if (fg_soc >= 4 && fg_vcell < \
+				get_low_batt_threshold(4, 3, fg_min_current))
+
+				add_low_batt_comp_cnt(4, 3);
+			else
+				bCntReset = 1;
+		}
+#endif
+		else if (fg_min_current >= CURRENT_RANGE4 && \
+				fg_min_current < CURRENT_RANGE3) {
+			if (fg_soc >= 2 && fg_vcell < \
+				get_low_batt_threshold(3, 1, fg_min_current))
+
+				add_low_batt_comp_cnt(3, 1);
+			else if (fg_soc >= 4 && fg_vcell < \
+				get_low_batt_threshold(3, 3, fg_min_current))
+				add_low_batt_comp_cnt(3, 3);
+			else
+				bCntReset = 1;
+		} else if (fg_min_current >= CURRENT_RANGE3 && \
+				fg_min_current < CURRENT_RANGE2) {
+			if (fg_soc >= 2 && fg_vcell < \
+				get_low_batt_threshold(2, 1, fg_min_current))
+
+				add_low_batt_comp_cnt(2, 1);
+			else if (fg_soc >= 4 && fg_vcell < \
+				get_low_batt_threshold(2, 3, fg_min_current))
+
+				add_low_batt_comp_cnt(2, 3);
+			else
+				bCntReset = 1;
+		} else if (fg_min_current >= CURRENT_RANGE2 && \
+				fg_min_current < CURRENT_RANGE1) {
+			if (fg_soc >= 2 && fg_vcell < \
+				get_low_batt_threshold(1, 1, fg_min_current))
+
+				add_low_batt_comp_cnt(1, 1);
+			else if (fg_soc >= 4 && fg_vcell < \
+				get_low_batt_threshold(1, 3, fg_min_current))
+
+				add_low_batt_comp_cnt(1, 3);
+			else
+				bCntReset = 1;
+		}
+
+
+		if (check_low_batt_comp_condtion(&new_level)) {
+#if defined(CONFIG_MACH_P4NOTE) || \
+	defined(CONFIG_MACH_P8) || defined(CONFIG_MACH_P8LTE)
+			/*
+			 * Disable 3% low battery compensation
+			 * duplicated action with 1% low battery compensation
+			 */
+			if (new_level < 2)
+#endif
+				fg_low_batt_compensation(new_level);
+			reset_low_batt_comp_cnt();
+		}
+
+		if (bCntReset)
+			reset_low_batt_comp_cnt();
+
+		/* if compensation finished, then read SOC again!!*/
+		if (chip->info.low_batt_comp_flag) {
+			pr_info("%s: MIN_CURRENT(%d), AVG_CURRENT(%d),",
+				__func__, fg_min_current, fg_avg_current);
+			pr_info(" CURRENT(%d), SOC(%d), VCELL(%d)\n",
+				fg_current, fg_soc, fg_vcell);
+#if defined(CONFIG_MACH_P8) || defined(CONFIG_MACH_P8LTE)
+	/* Do not update soc right after low battery compensation */
+	/* to prevent from powering-off suddenly (only for P8s) */
+			pr_info("%s: SOC is set to %d\n",
+				__func__, fg_read_soc());
+#else
+			fg_soc = fg_read_soc();
+			pr_info("%s: SOC is set to %d\n", __func__, fg_soc);
+#endif
+		}
+	}
+
+#if defined(CONFIG_MACH_P4NOTE) || defined(CONFIG_MACH_P2)
+	/* Prevent power off over 3500mV */
+	/* Force power off under 3400mV */
+	prevent_early_late_poweroff(fg_vcell, &fg_soc);
+#endif
+
+	return fg_soc;
+}
+
+static void fg_set_battery_type(void)
+{
+	struct i2c_client *client = fg_i2c_client;
+	struct max17042_chip *chip = i2c_get_clientdata(client);
+
+	u16 data;
+	u8 type_str[10];
+
+	data = fg_read_register(DESIGNCAP_REG);
+
+	if ((data == chip->pdata->sdi_vfcapacity) || \
+			(data == chip->pdata->sdi_vfcapacity-1))
+		chip->info.battery_type = SDI_BATTERY_TYPE;
+	else if ((data == chip->pdata->atl_vfcapacity) || \
+			(data == chip->pdata->atl_vfcapacity-1))
+		chip->info.battery_type = ATL_BATTERY_TYPE;
+	else {
+		pr_info("%s: Unknown battery is set to SDI type.\n", __func__);
+		chip->info.battery_type = SDI_BATTERY_TYPE;
+	}
+
+	if (chip->info.battery_type == SDI_BATTERY_TYPE)
+		sprintf(type_str, "SDI");
+	else if (chip->info.battery_type == ATL_BATTERY_TYPE)
+		sprintf(type_str, "ATL");
+	else
+		sprintf(type_str, "Unknown");
+
+	pr_info("%s: DesignCAP(0x%04x), Battery type(%s)\n",
+			__func__, data, type_str);
+
+	switch (chip->info.battery_type) {
+	case ATL_BATTERY_TYPE:
+		chip->info.capacity = chip->pdata->atl_capacity;
+		chip->info.vfcapacity = chip->pdata->atl_vfcapacity;
+		break;
+
+	case SDI_BATTERY_TYPE:
+	default:
+		chip->info.capacity = chip->pdata->sdi_capacity;
+		chip->info.vfcapacity = chip->pdata->sdi_vfcapacity;
+		break;
+	}
+
+	/* If not initialized yet, then init threshold values. */
+	if (!chip->info.check_start_vol) {
+		if (chip->info.battery_type == SDI_BATTERY_TYPE)
+			chip->info.check_start_vol = \
+					chip->pdata->sdi_low_bat_comp_start_vol;
+		else if (chip->info.battery_type == ATL_BATTERY_TYPE)
+			chip->info.check_start_vol = \
+					chip->pdata->atl_low_bat_comp_start_vol;
+	}
+
+}
+
+int get_fuelgauge_capacity(enum capacity_type type)
+{
+	int cap = -1;
+	pr_debug("%s\n", __func__);
+
+	switch (type) {
+	case CAPACITY_TYPE_FULL:
+		cap = fg_read_register(FULLCAP_REG);
+		break;
+	case CAPACITY_TYPE_MIX:
+		cap = fg_read_register(REMCAP_MIX_REG);
+		break;
+	case CAPACITY_TYPE_AV:
+		cap = fg_read_register(REMCAP_AV_REG);
+		break;
+	case CAPACITY_TYPE_REP:
+		cap = fg_read_register(REMCAP_REP_REG);
+		break;
+	default:
+		pr_info("%s: invalid type(%d)\n", __func__, type);
+		cap = -EINVAL;
+		break;
+	}
+
+	pr_debug("%s: type(%d), cap(0x%x, %d)\n", __func__,
+					type, cap, (cap / 2));
+	return cap;
+}
+
+int get_fuelgauge_value(int data)
+{
+	int ret;
+
+	switch (data) {
+	case FG_LEVEL:
+		ret = fg_read_soc();
+		break;
+
+	case FG_TEMPERATURE:
+		ret = fg_read_temp();
+		break;
+
+	case FG_VOLTAGE:
+		ret = fg_read_vcell();
+		break;
+
+	case FG_CURRENT:
+		ret = fg_read_current();
+		break;
+
+	case FG_CURRENT_AVG:
+		ret = fg_read_avg_current();
+		break;
+
+	case FG_BATTERY_TYPE:
+		ret = fg_get_battery_type();
+		break;
+
+	case FG_CHECK_STATUS:
+		ret = fg_check_status_reg();
+		break;
+
+	case FG_VF_SOC:
+		ret = fg_read_vfsoc();
+		break;
+
+	case FG_VOLTAGE_NOW:
+		ret = fg_read_voltage_now();
+		break;
+
+	default:
+		ret = -1;
+		break;
+	}
+
+	return ret;
+}
+
+static int fg_i2c_remove(struct i2c_client *client)
+{
+	struct max17042_chip *chip = i2c_get_clientdata(client);
+
+	kfree(chip);
+	return 0;
+}
+
+static int
+fg_i2c_probe(struct i2c_client *client,  const struct i2c_device_id *id)
+{
+	struct max17042_chip *chip;
+
+	if (!client->dev.platform_data) {
+		pr_err("%s: No platform data\n", __func__);
+		return -EINVAL;
+	}
+
+	chip = kzalloc(sizeof(*chip), GFP_KERNEL);
+	if (!chip) {
+		pr_info("failed to allocate memory.\n");
+		return -ENOMEM;
+	}
+
+	chip->client = client;
+	chip->pdata = client->dev.platform_data;
+	i2c_set_clientdata(client, chip);
+
+	pr_info("%s: fuelgauge driver loading\n", __func__);
+
+	max17042_chip_data = chip;
+	/* rest of the initialisation goes here. */
+	pr_info("Fuel gauge attach success!!!\n");
+
+	fg_i2c_client = client;
+	fg_set_battery_type();
+
+	/* Init parameters to prevent wrong compensation. */
+	chip->info.prev_fullcap = fg_read_register(FULLCAP_REG);
+	chip->info.prev_vffcap = fg_read_register(FULLCAP_NOM_REG);
+	/* Init FullCAP of first full charging. */
+	chip->info.full_charged_cap = chip->info.prev_fullcap;
+
+	chip->info.prev_vfsoc = fg_read_vfsoc();
+	chip->info.prev_repsoc = fg_read_soc();
+	chip->info.prev_remcap = fg_read_register(REMCAP_REP_REG);
+	chip->info.prev_mixcap = fg_read_register(REMCAP_MIX_REG);
+	chip->info.prev_vfocv = fg_read_register(VFOCV_REG);
+	chip->info.prev_fullcapacity = chip->info.prev_fullcap;
+	chip->info.prev_vfcapacity = chip->info.prev_vffcap;
+
+	mutex_init(&chip->fg_lock);
+
+	fg_alert_init();
+	fg_read_model_data();
+	fg_periodic_read();
+	return 0;
+}
+
+static const struct i2c_device_id fg_device_id[] = {
+	{"fuelgauge", 0},
+	{}
+};
+MODULE_DEVICE_TABLE(i2c, fg_device_id);
+
+static struct i2c_driver fg_i2c_driver = {
+	.driver = {
+		.name = "fuelgauge",
+		.owner = THIS_MODULE,
+	},
+	.probe	= fg_i2c_probe,
+	.remove	= fg_i2c_remove,
+	.id_table	= fg_device_id,
+};
+
+static int __init max17042_init(void)
+{
+	return i2c_add_driver(&fg_i2c_driver);
+}
+subsys_initcall(max17042_init);
+
+static void __exit max17042_exit(void)
+{
+	i2c_del_driver(&fg_i2c_driver);
+}
+module_exit(max17042_exit);
+
+MODULE_AUTHOR("Minkyu Kang <mk7.kang@samsung.com>");
+MODULE_DESCRIPTION("MAX17042 Fuel Gauge");
+MODULE_LICENSE("GPL");
+
diff --git a/drivers/power/max17042_fuelgauge_u1.c b/drivers/power/max17042_fuelgauge_u1.c
new file mode 100644
index 0000000..1434c72
--- /dev/null
+++ b/drivers/power/max17042_fuelgauge_u1.c
@@ -0,0 +1,1022 @@
+/*
+ *  max17042-fuelgauge.c
+ *  fuel-gauge systems for lithium-ion (Li+) batteries
+ *
+ *  Copyright (C) 2010 Samsung Electronics
+ *
+ *  based on max17040_battery.c
+ *
+ *  <ms925.kim@samsung.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/platform_device.h>
+#include <linux/mutex.h>
+#include <linux/err.h>
+#include <linux/i2c.h>
+#include <linux/delay.h>
+#include <linux/power_supply.h>
+#include <linux/power/max17042_fuelgauge_u1.h>
+#include <linux/slab.h>
+#include <linux/interrupt.h>
+#include <linux/irq.h>
+#include <linux/gpio.h>
+
+static ssize_t sec_fg_show_property(struct device *dev,
+				    struct device_attribute *attr, char *buf);
+
+static ssize_t sec_fg_store(struct device *dev,
+			struct device_attribute *attr,
+			const char *buf, size_t count);
+
+struct max17042_chip {
+	struct i2c_client		*client;
+	struct delayed_work		work;
+	struct power_supply		battery;
+	struct max17042_platform_data	*pdata;
+
+	int vcell;			/* battery voltage */
+	int avgvcell;		/* average battery voltage */
+	int vfocv;		/* calculated battery voltage */
+	int soc;			/* battery capacity */
+	int raw_soc;		/* fuel gauge raw data */
+	int temperature;
+	int fuel_alert_soc;		/* fuel alert threshold */
+	bool is_fuel_alerted;	/* fuel alerted */
+	struct wake_lock fuel_alert_wake_lock;
+	bool is_enable;			/* can be fuel guage enable */
+
+#ifdef RECAL_SOC_FOR_MAXIM
+	int cnt;
+	int recalc_180s;
+	int boot_cnt;
+#endif
+};
+
+static int max17042_get_property(struct power_supply *psy,
+			    enum power_supply_property psp,
+			    union power_supply_propval *val)
+{
+	struct max17042_chip *chip = container_of(psy,
+						  struct max17042_chip,
+						  battery);
+
+	switch (psp) {
+	case POWER_SUPPLY_PROP_STATUS:
+		val->intval = POWER_SUPPLY_STATUS_NOT_CHARGING;
+		break;
+	case POWER_SUPPLY_PROP_PRESENT:
+		val->intval = 1;
+		break;
+	case POWER_SUPPLY_PROP_ONLINE:
+		val->intval = 1;
+		break;
+	case POWER_SUPPLY_PROP_VOLTAGE_NOW:
+		switch (val->intval) {
+		case 0:	/*vcell */
+		val->intval = chip->vcell;
+		break;
+		case 1:	/*vfocv */
+			val->intval = chip->vfocv;
+			break;
+		}
+		break;
+	case POWER_SUPPLY_PROP_VOLTAGE_AVG:
+		val->intval = chip->avgvcell;
+		break;
+	case POWER_SUPPLY_PROP_CAPACITY:
+		switch (val->intval) {
+		case 0:	/*normal soc */
+		val->intval = chip->soc;
+		break;
+		case 1: /*raw soc */
+			val->intval = chip->raw_soc;
+			break;
+		}
+		break;
+	case POWER_SUPPLY_PROP_TEMP:
+		val->intval = chip->temperature / 100;
+		break;
+	default:
+		return -EINVAL;
+	}
+	return 0;
+}
+
+static int max17042_write_reg(struct i2c_client *client, int reg, u8 * buf)
+{
+	int ret;
+
+	ret = i2c_smbus_write_i2c_block_data(client, reg, 2, buf);
+
+	if (ret < 0)
+		dev_err(&client->dev, "%s: err %d (reg = 0x%x)\n",
+		__func__, ret, reg);
+
+	return ret;
+}
+
+static int max17042_read_reg(struct i2c_client *client, int reg, u8 * buf)
+{
+	int ret;
+
+	ret = i2c_smbus_read_i2c_block_data(client, reg, 2, buf);
+
+	if (ret < 0)
+		dev_err(&client->dev, "%s: err %d (reg = 0x%x)\n",
+		__func__, ret, reg);
+
+	return ret;
+}
+
+static void max17042_write_reg_array(struct i2c_client *client,
+				struct max17042_reg_data *data, int size)
+{
+	int i;
+
+	for (i = 0; i < size; i += 3)
+		max17042_write_reg(client, (data + i)->reg_addr,
+				   ((u8 *) (data + i)) + 1);
+}
+
+static void max17042_init_regs(struct i2c_client *client)
+{
+	struct max17042_chip *chip = i2c_get_clientdata(client);
+	u8 data[2];
+	/* struct max17042_platform_data *pdata = client->dev.platform_data; */
+
+	dev_info(&client->dev, "%s\n", __func__);
+
+	if (chip->is_enable) {
+		/* max17042_write_reg_array(client, pdata->init,
+			pdata->init_size); */
+
+		if (max17042_read_reg(client, MAX17042_REG_FILTERCFG, data) < 0)
+			return;
+
+		/* Clear average vcell (12 sec) */
+		data[0] &= 0x8f;
+
+		max17042_write_reg(client, MAX17042_REG_FILTERCFG, data);
+	}
+}
+
+static void max17042_alert_init(struct i2c_client *client)
+{
+	struct max17042_platform_data *pdata = client->dev.platform_data;
+
+	dev_info(&client->dev, "%s\n", __func__);
+
+	max17042_write_reg_array(client, pdata->alert_init,
+		pdata->alert_init_size);
+}
+
+static int max17042_read_vfocv(struct i2c_client *client)
+{
+	u8 data[2];
+	u32 vfocv = 0;
+	struct max17042_chip *chip = i2c_get_clientdata(client);
+
+	if (chip->is_enable) {
+		if (max17042_read_reg(client, MAX17042_REG_VFOCV, data) < 0)
+			return -1;
+
+		vfocv = ((data[0] >> 3) + (data[1] << 5)) * 625 / 1000;
+
+		chip->vfocv = vfocv;
+
+		return vfocv;
+	} else
+		return 4000;
+
+}
+
+#if 0
+static int max17042_read_vfsoc(struct i2c_client *client)
+{
+	u8 data[2];
+	u32 vfsoc = 0;
+
+#ifndef NO_READ_I2C_FOR_MAXIM
+	if (max17042_read_reg(client, MAX17042_REG_SOC_VF, data) < 0)
+		return -1;
+
+	vfsoc = data[1];
+
+	return vfsoc;
+#else
+	return 100;
+#endif
+}
+#else
+static void max17042_get_soc(struct i2c_client *client);
+static int max17042_read_vfsoc(struct i2c_client *client)
+{
+	struct max17042_chip *chip = i2c_get_clientdata(client);
+
+	max17042_get_soc(client);
+
+	return chip->soc;
+}
+#endif
+
+static void max17042_reset_soc(struct i2c_client *client)
+{
+	struct max17042_chip *chip = i2c_get_clientdata(client);
+	u8 data[2];
+
+	if (chip->is_enable) {
+		dev_info(&client->dev, "%s : Before quick-start - "
+			"VfOCV(%d), VfSOC(%d)\n",
+			__func__, max17042_read_vfocv(client),
+			max17042_read_vfsoc(client));
+
+		if (max17042_read_reg(client, MAX17042_REG_MISCCFG, data) < 0)
+			return;
+
+		/* Set bit10 makes quick start */
+		data[1] |= (0x1 << 2);
+		max17042_write_reg(client, MAX17042_REG_MISCCFG, data);
+
+		msleep(500);
+
+		dev_info(&client->dev, "%s : After quick-start - "
+			"VfOCV(%d), VfSOC(%d)\n",
+			__func__, max17042_read_vfocv(client),
+			max17042_read_vfsoc(client));
+	}
+
+	return;
+}
+
+static void max17042_get_vcell(struct i2c_client *client)
+{
+	struct max17042_chip *chip = i2c_get_clientdata(client);
+	u8 data[2];
+
+	if (chip->is_enable) {
+		if (max17042_read_reg(client, MAX17042_REG_VCELL, data) < 0)
+			return;
+
+		chip->vcell = ((data[0] >> 3) + (data[1] << 5)) * 625;
+
+		if (max17042_read_reg(client, MAX17042_REG_AVGVCELL, data) < 0)
+			return;
+
+		chip->avgvcell = ((data[0] >> 3) + (data[1] << 5)) * 625;
+	} else {
+		chip->vcell = 4000000;
+		chip->avgvcell = 4000000;
+	}
+}
+
+static int max17042_recalc_soc(struct i2c_client *client, int boot_cnt)
+{
+	struct max17042_chip *chip = i2c_get_clientdata(client);
+	struct power_supply *psy = power_supply_get_by_name("battery");
+	union power_supply_propval value;
+	u8 data[2];
+	u16 temp_vfocv = 0;
+	int soc;
+
+	if (chip->is_enable) {
+		/* AverageVcell : 175.8ms * 256 = 45s sampling */
+		if (boot_cnt < 4) /* 30s using VCELL */
+			max17042_read_reg(client, MAX17042_REG_VCELL, data);
+		else
+			max17042_read_reg(client, MAX17042_REG_AVGVCELL, data);
+		temp_vfocv = (data[1] << 8);
+		temp_vfocv |= data[0];
+
+		if (psy != NULL) {
+			psy->get_property(psy,
+				POWER_SUPPLY_PROP_ONLINE, &value);
+
+			if (value.intval == 0)
+				temp_vfocv = temp_vfocv + 0x0380; /* +70mV */
+			else
+				temp_vfocv = temp_vfocv - 0x0380; /* -70mV */
+
+			dev_info(&client->dev, "cable = %d, ", value.intval);
+		} else
+			temp_vfocv = temp_vfocv + 0x0380; /* +70mV */
+
+		data[1] = temp_vfocv >> 8;
+		data[0] = 0x00FF & temp_vfocv;
+		dev_info(&client->dev, "forced write to vfocv %d mV\n",
+			 (temp_vfocv >> 4) * 125 / 100);
+		max17042_write_reg(client, MAX17042_REG_VFOCV, data);
+
+		msleep(200);
+
+		max17042_read_reg(client, MAX17042_REG_SOC_VF, data);
+		soc = min((int)data[1], 100);
+
+		max17042_read_reg(client, MAX17042_REG_VCELL, data);
+		dev_info(&client->dev, "new vcell = %d, vfocv = %d, soc = %d\n",
+			 ((data[0] >> 3) + (data[1] << 5)) * 625 / 1000,
+			 max17042_read_vfocv(client), soc);
+	} else
+		soc = 70;
+
+	return soc;
+}
+
+static void max17042_get_soc(struct i2c_client *client)
+{
+	struct max17042_chip *chip = i2c_get_clientdata(client);
+	u8 data[2];
+	int soc;
+	int diff = 0;
+
+	if (chip->is_enable) {
+		if (max17042_read_reg(client, MAX17042_REG_SOC_VF, data) < 0)
+			return;
+		dev_info(&chip->client->dev, "%s : soc(%02x%02x)\n",
+				__func__, data[1], data[0]);
+
+		soc = (data[1] * 100) + (data[0] * 100 / 256);
+
+		chip->raw_soc = min(soc / 100, 100);
+
+#ifdef RECAL_SOC_FOR_MAXIM
+		if (chip->pdata->need_soc_recal()) {
+			dev_info(&client->dev,
+				"%s : recalculate soc\n", __func__);
+
+			/*modified 3.6V cut-off */
+			/*raw 3% ~ 95% */
+			soc = (soc < 300) ? 0 : ((soc - 300) * 100 / 9200) + 1;
+
+			if (chip->boot_cnt < 4)
+				chip->boot_cnt++;
+
+			dev_info(&client->dev,
+				"vcell = %d, vfocv = %d, soc = %d\n",
+				chip->vcell,  max17042_read_vfocv(client), soc);
+
+			if (soc < 5) {
+				dev_info(&client->dev,
+					"recalc force soc = %d, diff = %d!\n",
+					soc, diff);
+				chip->recalc_180s = 1;
+			}
+
+			/*when using fuelgauge level, diff is calculated */
+			if (chip->recalc_180s == 0 && chip->boot_cnt != 1) {
+				if (chip->soc > soc)
+					diff = chip->soc - soc;
+				else
+					diff = soc - chip->soc;
+			} else	/*during recalc, diff is not valid */
+				diff = 0;
+
+			if (diff > 10) {
+				dev_info(&client->dev,
+					"recalc 180s soc = %d, diff = %d!\n",
+					soc, diff);
+				chip->recalc_180s = 1;
+			}
+
+			if (chip->recalc_180s == 1) {
+				if (chip->cnt < 18) {
+					chip->cnt++;
+					soc = max17042_recalc_soc(client,
+						chip->boot_cnt);
+				} else {
+					chip->recalc_180s = 0;
+					chip->cnt = 0;
+				}
+			}
+		} else {
+			/*modified 3.4V cut-off */
+			/*raw 1.6% ~ 97.6% */
+			soc = (soc > 100) ? ((soc - 60) * 100 / 9700) : 0;
+			/*raw 1.5% ~ 95% */
+			/*soc = (soc < 150) ? 0 : ((soc - 150) * 100 / 9350) + 1; */
+		}
+#else
+		/* adjusted soc by adding 0.45 */
+		soc += 45;
+		soc /= 100;
+#endif
+	} else
+		soc = 70;
+
+	soc = min(soc, 100);
+
+	chip->soc = soc;
+
+	dev_info(&client->dev, "%s : use raw (%d), soc (%d)\n",
+		__func__, chip->raw_soc, soc);
+}
+
+static void max17042_get_temperature(struct i2c_client *client)
+{
+	struct max17042_chip *chip = i2c_get_clientdata(client);
+	u8 data[2];
+	s32 temper = 0;
+
+	if (chip->is_enable) {
+		if (max17042_read_reg(client, MAX17042_REG_TEMPERATURE, data) < 0)
+			return;
+
+		/* data[] store 2's compliment format number */
+		if (data[1] & (0x1 << 7)) {
+			/* Negative */
+			temper = ((~(data[1])) & 0xFF) + 1;
+			temper *= (-1000);
+		} else {
+			temper = data[1] & 0x7F;
+			temper *= 1000;
+			temper += data[0] * 39 / 10;
+		}
+
+		dev_dbg(&client->dev, "%s: MAX17042 Temperature = %d\n",
+			__func__, chip->temperature);
+	} else
+		temper = 40;
+
+	chip->temperature = temper;
+}
+
+static void max17042_get_version(struct i2c_client *client)
+{
+	struct max17042_chip *chip = i2c_get_clientdata(client);
+	u8 data[2];
+
+	if (chip->is_enable) {
+		if (max17042_read_reg(client, MAX17042_REG_VERSION, data) < 0)
+			return;
+
+		dev_info(&client->dev, "MAX17042 Fuel-Gauge Ver %d%d\n",
+				data[0], data[1]);
+	}
+}
+
+static int max17042_set_property(struct power_supply *psy,
+			    enum power_supply_property psp,
+			    const union power_supply_propval *val)
+{
+	struct max17042_chip *chip = container_of(psy,
+						  struct max17042_chip,
+						  battery);
+	u8 data[2];
+
+	switch (psp) {
+	case POWER_SUPPLY_PROP_TEMP:
+		if (chip->pdata->enable_gauging_temperature &&
+			chip->is_enable) {
+			data[0] = 0;
+			data[1] = val->intval;
+			max17042_write_reg(chip->client,
+				MAX17042_REG_TEMPERATURE, data);
+		} else
+			return -EINVAL;
+		break;
+	default:
+		return -EINVAL;
+	}
+	return 0;
+}
+
+static void max17042_work(struct work_struct *work)
+{
+	struct max17042_chip *chip;
+
+	chip = container_of(work, struct max17042_chip, work.work);
+
+	max17042_get_vcell(chip->client);
+	max17042_read_vfocv(chip->client);
+	max17042_get_soc(chip->client);
+
+	if (chip->pdata->enable_gauging_temperature)
+		max17042_get_temperature(chip->client);
+
+	/* polling check for fuel alert for booting in low battery*/
+	if (chip->raw_soc < chip->fuel_alert_soc) {
+		if (!(chip->is_fuel_alerted) &&
+			chip->pdata->low_batt_cb) {
+			wake_lock(&chip->fuel_alert_wake_lock);
+			chip->pdata->low_batt_cb();
+			chip->is_fuel_alerted = true;
+
+			dev_info(&chip->client->dev,
+				"fuel alert activated by polling check (raw:%d)\n",
+				chip->raw_soc);
+		} else
+			dev_info(&chip->client->dev,
+				"fuel alert already activated (raw:%d)\n",
+				chip->raw_soc);
+	} else if (chip->raw_soc == chip->fuel_alert_soc) {
+		if (chip->is_fuel_alerted) {
+			wake_unlock(&chip->fuel_alert_wake_lock);
+			chip->is_fuel_alerted = false;
+
+			dev_info(&chip->client->dev,
+				"fuel alert deactivated by polling check (raw:%d)\n",
+				chip->raw_soc);
+		}
+	}
+
+#ifdef LOG_REG_FOR_MAXIM
+	{
+		int reg;
+		int i;
+		u8	data[2];
+		u8	buf[1024];
+
+		i = 0;
+		for (reg = 0; reg < 0x50; reg++) {
+			max17042_read_reg(chip->client, reg, data);
+			i += sprintf(buf + i, "0x%02x%02xh,", data[1], data[0]);
+		}
+		printk(KERN_INFO "%s", buf);
+
+		i = 0;
+		for (reg = 0xe0; reg < 0x100; reg++) {
+			max17042_read_reg(chip->client, reg, data);
+			i += sprintf(buf + i, "0x%02x%02xh,", data[1], data[0]);
+		}
+		printk(KERN_INFO "%s", buf);
+	}
+#endif
+
+	schedule_delayed_work(&chip->work, MAX17042_LONG_DELAY);
+}
+
+static enum power_supply_property max17042_battery_props[] = {
+	POWER_SUPPLY_PROP_STATUS,
+	POWER_SUPPLY_PROP_PRESENT,
+	POWER_SUPPLY_PROP_TEMP,
+	POWER_SUPPLY_PROP_ONLINE,
+	POWER_SUPPLY_PROP_VOLTAGE_NOW,
+	POWER_SUPPLY_PROP_CAPACITY,
+};
+
+#define SEC_FG_ATTR(_name)			\
+{						\
+	.attr = { .name = #_name,		\
+		  .mode = 0664 },		\
+	.show = sec_fg_show_property,		\
+	.store = sec_fg_store,			\
+}
+
+static struct device_attribute sec_fg_attrs[] = {
+	SEC_FG_ATTR(fg_reset_soc),
+	SEC_FG_ATTR(fg_read_soc),
+};
+
+enum {
+	FG_RESET_SOC = 0,
+	FG_READ_SOC,
+};
+
+static ssize_t sec_fg_show_property(struct device *dev,
+				    struct device_attribute *attr, char *buf)
+{
+	struct power_supply *psy = dev_get_drvdata(dev);
+	struct max17042_chip *chip = container_of(psy,
+						  struct max17042_chip,
+						  battery);
+
+	int i = 0;
+	const ptrdiff_t off = attr - sec_fg_attrs;
+
+	switch (off) {
+	case FG_READ_SOC:
+		i += scnprintf(buf + i, PAGE_SIZE - i, "%d\n",
+			max17042_read_vfsoc(chip->client));
+		break;
+	default:
+		i = -EINVAL;
+	}
+
+	return i;
+}
+
+static ssize_t sec_fg_store(struct device *dev,
+			     struct device_attribute *attr,
+			     const char *buf, size_t count)
+{
+	struct power_supply *psy = dev_get_drvdata(dev);
+	struct max17042_chip *chip = container_of(psy,
+						  struct max17042_chip,
+						  battery);
+
+	int x = 0;
+	int ret = 0;
+	const ptrdiff_t off = attr - sec_fg_attrs;
+
+	switch (off) {
+	case FG_RESET_SOC:
+		if (sscanf(buf, "%d\n", &x) == 1) {
+			if (x == 1)
+				max17042_reset_soc(chip->client);
+			ret = count;
+		}
+#if 1
+/* tester requested to sustain unity with parental models but
+	keep source code for later */
+		{
+			struct power_supply *psy =
+				power_supply_get_by_name("battery");
+			union power_supply_propval value;
+
+			if (!psy) {
+				pr_err("%s: fail to get battery ps\n", __func__);
+				return -ENODEV;
+			}
+
+			value.intval = 0;	/* dummy value */
+			psy->set_property(psy,
+				POWER_SUPPLY_PROP_CAPACITY, &value);
+		}
+#endif
+		break;
+	default:
+		ret = -EINVAL;
+	}
+
+	return ret;
+}
+
+static int fuelgauge_create_attrs(struct device *dev)
+{
+	int i, rc;
+
+	for (i = 0; i < ARRAY_SIZE(sec_fg_attrs); i++) {
+		rc = device_create_file(dev, &sec_fg_attrs[i]);
+		if (rc)
+			goto fg_attrs_failed;
+	}
+	goto succeed;
+
+fg_attrs_failed:
+	while (i--)
+		device_remove_file(dev, &sec_fg_attrs[i]);
+succeed:
+	return rc;
+}
+
+static bool max17042_check_status(struct i2c_client *client)
+{
+	struct max17042_chip *chip = i2c_get_clientdata(client);
+	u8 data[2];
+	bool ret = false;
+
+	if (chip->is_enable) {
+		/* check if Smn was generated */
+		if (max17042_read_reg(client, MAX17042_REG_STATUS, data) < 0)
+			return ret;
+
+		dev_info(&client->dev, "%s : status_reg(%02x%02x)\n",
+				__func__, data[1], data[0]);
+
+		/* minimum SOC threshold exceeded. */
+		if (data[1] & (0x1 << 2))
+			ret = true;
+
+		/* clear status reg */
+		if (!ret) {
+			data[1] = 0;
+			max17042_write_reg(client, MAX17042_REG_STATUS, data);
+			msleep(200);
+		}
+	} else
+		ret = true;
+
+	return ret;
+}
+
+static irqreturn_t max17042_irq_thread(int irq, void *irq_data)
+{
+	u8 data[2];
+	bool max17042_alert_status = false;
+	struct max17042_chip *chip = irq_data;
+
+	/* update SOC */
+	max17042_get_soc(chip->client);
+
+	max17042_alert_status = max17042_check_status(chip->client);
+
+	if (max17042_alert_status /* && !(chip->is_fuel_alerted)*/) {
+		if (max17042_read_reg(chip->client, MAX17042_REG_CONFIG, data)
+			< 0)
+			return IRQ_HANDLED;
+
+		data[1] |= (0x1 << 3);
+
+		if (chip->pdata->low_batt_cb && !(chip->is_fuel_alerted)) {
+			wake_lock(&chip->fuel_alert_wake_lock);
+			chip->pdata->low_batt_cb();
+			chip->is_fuel_alerted = true;
+		} else
+			dev_err(&chip->client->dev,
+				"failed to call low_batt_cb()\n");
+
+		max17042_write_reg(chip->client, MAX17042_REG_CONFIG, data);
+
+		dev_info(&chip->client->dev,
+			"%s : low batt alerted!! config_reg(%02x%02x)\n",
+			__func__, data[1], data[0]);
+	} else if (!max17042_alert_status /* && (chip->is_fuel_alerted)*/) {
+		if (chip->is_fuel_alerted)
+			wake_unlock(&chip->fuel_alert_wake_lock);
+		chip->is_fuel_alerted = false;
+
+		if (max17042_read_reg(chip->client, MAX17042_REG_CONFIG, data)
+			< 0)
+			return IRQ_HANDLED;
+
+		data[1] &= (~(0x1 << 3));
+
+		max17042_write_reg(chip->client, MAX17042_REG_CONFIG, data);
+
+		dev_info(&chip->client->dev,
+			"%s : low batt released!! config_reg(%02x%02x)\n",
+			__func__, data[1], data[0]);
+	}
+
+	max17042_read_reg(chip->client, MAX17042_REG_VCELL, data);
+	dev_info(&chip->client->dev, "%s : MAX17042_REG_VCELL(%02x%02x)\n",
+		__func__, data[1], data[0]);
+
+	max17042_read_reg(chip->client, MAX17042_REG_TEMPERATURE, data);
+	dev_info(&chip->client->dev, "%s : MAX17042_REG_TEMPERATURE(%02x%02x)\n",
+		__func__, data[1], data[0]);
+
+	max17042_read_reg(chip->client, MAX17042_REG_CONFIG, data);
+	dev_info(&chip->client->dev, "%s : MAX17042_REG_CONFIG(%02x%02x)\n",
+		__func__, data[1], data[0]);
+
+	max17042_read_reg(chip->client, MAX17042_REG_VFOCV, data);
+	dev_info(&chip->client->dev, "%s : MAX17042_REG_VFOCV(%02x%02x)\n",
+		__func__, data[1], data[0]);
+
+	max17042_read_reg(chip->client, MAX17042_REG_SOC_VF, data);
+	dev_info(&chip->client->dev, "%s : MAX17042_REG_SOC_VF(%02x%02x)\n",
+		__func__, data[1], data[0]);
+
+	dev_err(&chip->client->dev,
+		"%s : PMIC IRQ (%d), FUEL GAUGE IRQ (%d)\n",
+		__func__, gpio_get_value(GPIO_PMIC_IRQ),
+		gpio_get_value(chip->pdata->alert_gpio));
+
+#if 0
+	**max17042_read_reg(chip->client, MAX17042_REG_STATUS, data);
+	dev_info(&chip->client->dev, "%s : MAX17042_REG_STATUS(%02x%02x)\n",
+		__func__, data[1], data[0]);
+
+	**max17042_read_reg(chip->client, MAX17042_REG_VALRT_TH, data);
+	dev_info(&chip->client->dev, "%s : MAX17042_REG_VALRT_TH(%02x%02x)\n",
+		__func__, data[1], data[0]);
+
+	**max17042_read_reg(chip->client, MAX17042_REG_TALRT_TH, data);
+	dev_info(&chip->client->dev, "%s : MAX17042_REG_TALRT_TH(%02x%02x)\n",
+		__func__, data[1], data[0]);
+
+	**max17042_read_reg(chip->client, MAX17042_REG_SALRT_TH, data);
+	dev_info(&chip->client->dev, "%s : MAX17042_REG_SALRT_TH(%02x%02x)\n",
+		__func__, data[1], data[0]);
+
+	**max17042_read_reg(chip->client, MAX17042_REG_AVGVCELL, data);
+	dev_info(&chip->client->dev, "%s : MAX17042_REG_AVGVCELL(%02x%02x)\n",
+		__func__, data[1], data[0]);
+
+	**max17042_read_reg(chip->client, MAX17042_REG_VERSION, data);
+	dev_info(&chip->client->dev, "%s : MAX17042_REG_VERSION(%02x%02x)\n",
+		__func__, data[1], data[0]);
+
+	**max17042_read_reg(chip->client, MAX17042_REG_LEARNCFG, data);
+	dev_info(&chip->client->dev, "%s : MAX17042_REG_LEARNCFG(%02x%02x)\n",
+		__func__, data[1], data[0]);
+
+	**max17042_read_reg(chip->client, MAX17042_REG_MISCCFG, data);
+	dev_info(&chip->client->dev, "%s : MAX17042_REG_MISCCFG(%02x%02x)\n",
+		__func__, data[1], data[0]);
+
+	**max17042_read_reg(chip->client, MAX17042_REG_CGAIN, data);
+	dev_info(&chip->client->dev, "%s : MAX17042_REG_CGAIN(%02x%02x)\n",
+		__func__, data[1], data[0]);
+
+	**max17042_read_reg(chip->client, MAX17042_REG_RCOMP, data);
+	dev_info(&chip->client->dev, "%s : MAX17042_REG_RCOMP(%02x%02x)\n",
+		__func__, data[1], data[0]);
+#endif
+
+	return IRQ_HANDLED;
+}
+
+static int max17042_irq_init(struct max17042_chip *chip)
+{
+	int ret;
+	u8 data[2];
+
+	/* 1. Set max17042 alert configuration. */
+	max17042_alert_init(chip->client);
+
+	chip->is_fuel_alerted = false;
+
+	/* 2. Request irq */
+	if (chip->pdata->alert_irq) {
+		ret = request_threaded_irq(chip->pdata->alert_irq, NULL,
+			max17042_irq_thread, IRQF_TRIGGER_LOW | IRQF_ONESHOT,
+			"max17042 fuel alert", chip);
+		if (ret) {
+			dev_err(&chip->client->dev, "failed to reqeust IRQ\n");
+			return ret;
+		}
+
+		ret = enable_irq_wake(chip->pdata->alert_irq);
+		if (ret < 0)
+			dev_err(&chip->client->dev,
+				"failed to enable wakeup src %d\n", ret);
+	}
+
+	if (max17042_read_reg(chip->client, MAX17042_REG_CONFIG, data)
+		< 0)
+		return -1;
+
+	/*Enable Alert (Aen = 1) */
+	data[0] |= (0x1 << 2);
+
+	max17042_write_reg(chip->client, MAX17042_REG_CONFIG, data);
+
+	dev_info(&chip->client->dev, "%s : config_reg(%02x%02x) irq(%d)\n",
+		__func__, data[1], data[0], chip->pdata->alert_irq);
+
+	return 0;
+}
+
+static int __devinit max17042_probe(struct i2c_client *client,
+			const struct i2c_device_id *id)
+{
+	struct i2c_adapter *adapter = to_i2c_adapter(client->dev.parent);
+	struct max17042_chip *chip;
+	int i;
+	struct max17042_reg_data *data;
+	int ret;
+	u8 i2c_data[2];
+
+	dev_info(&client->dev, "%s: MAX17042 Driver Loading\n", __func__);
+
+	if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BYTE))
+		return -EIO;
+
+	chip = kzalloc(sizeof(*chip), GFP_KERNEL);
+	if (!chip)
+		return -ENOMEM;
+
+	chip->client = client;
+	chip->pdata = client->dev.platform_data;
+
+	i2c_set_clientdata(client, chip);
+
+	chip->battery.name		= "fuelgauge";
+	chip->battery.type		= POWER_SUPPLY_TYPE_BATTERY;
+	chip->battery.get_property	= max17042_get_property;
+	chip->battery.set_property	= max17042_set_property;
+	chip->battery.properties	= max17042_battery_props;
+	chip->battery.num_properties	= ARRAY_SIZE(max17042_battery_props);
+
+#ifdef RECAL_SOC_FOR_MAXIM
+	chip->cnt = 0;
+	chip->recalc_180s = 0;
+	chip->boot_cnt = 0;
+#endif
+
+	ret = power_supply_register(&client->dev, &chip->battery);
+	if (ret) {
+		dev_err(&client->dev, "failed: power supply register\n");
+		kfree(chip);
+		return ret;
+	}
+
+	if (max17042_read_reg(client, MAX17042_REG_VERSION, i2c_data) < 0)
+		chip->is_enable = false;
+	else
+		chip->is_enable = true;
+
+	dev_info(&client->dev, "%s : is enable (%d)\n",
+		__func__, chip->is_enable);
+
+	/* initialize fuel gauge registers */
+	max17042_init_regs(client);
+
+	if (chip->is_enable) {
+		/* register low batt intr */
+		chip->pdata->alert_irq = gpio_to_irq(chip->pdata->alert_gpio);
+
+		wake_lock_init(&chip->fuel_alert_wake_lock, WAKE_LOCK_SUSPEND,
+			       "fuel_alerted");
+
+		data = chip->pdata->alert_init;
+		for (i = 0; i < chip->pdata->alert_init_size; i += 3)
+			if ((data + i)->reg_addr ==
+				MAX17042_REG_SALRT_TH)
+				chip->fuel_alert_soc =
+				(data + i)->reg_data1;
+
+		dev_info(&client->dev, "fuel alert soc (%d)\n",
+			chip->fuel_alert_soc);
+
+		ret = max17042_irq_init(chip);
+		if (ret)
+			goto err_kfree;
+	}
+
+	max17042_get_version(client);
+
+	/* create fuelgauge attributes */
+	fuelgauge_create_attrs(chip->battery.dev);
+
+	INIT_DELAYED_WORK_DEFERRABLE(&chip->work, max17042_work);
+	schedule_delayed_work(&chip->work, MAX17042_SHORT_DELAY);
+
+	dev_info(&client->dev, "%s: MAX17042 Driver Loaded\n", __func__);
+
+	return 0;
+
+err_kfree:
+	wake_lock_destroy(&chip->fuel_alert_wake_lock);
+	kfree(chip);
+	return ret;
+}
+
+static int __devexit max17042_remove(struct i2c_client *client)
+{
+	struct max17042_chip *chip = i2c_get_clientdata(client);
+
+	power_supply_unregister(&chip->battery);
+	cancel_delayed_work(&chip->work);
+	wake_lock_destroy(&chip->fuel_alert_wake_lock);
+	kfree(chip);
+	return 0;
+}
+
+#ifdef CONFIG_PM
+
+static int max17042_suspend(struct i2c_client *client, pm_message_t state)
+{
+	struct max17042_chip *chip = i2c_get_clientdata(client);
+
+	cancel_delayed_work(&chip->work);
+	return 0;
+}
+
+static int max17042_resume(struct i2c_client *client)
+{
+	struct max17042_chip *chip = i2c_get_clientdata(client);
+
+	schedule_delayed_work(&chip->work, MAX17042_SHORT_DELAY);
+	return 0;
+}
+
+#else
+
+#define max17042_suspend NULL
+#define max17042_resume NULL
+
+#endif /* CONFIG_PM */
+
+static const struct i2c_device_id max17042_id[] = {
+	{"max17042", 0},
+	{}
+};
+
+MODULE_DEVICE_TABLE(i2c, max17042_id);
+
+static struct i2c_driver max17042_i2c_driver = {
+	.driver	= {
+		.name	= "max17042",
+	},
+	.probe		= max17042_probe,
+	.remove		= __devexit_p(max17042_remove),
+	.suspend	= max17042_suspend,
+	.resume		= max17042_resume,
+	.id_table	= max17042_id,
+};
+
+static int __init max17042_init(void)
+{
+	return i2c_add_driver(&max17042_i2c_driver);
+}
+
+module_init(max17042_init);
+
+static void __exit max17042_exit(void)
+{
+	i2c_del_driver(&max17042_i2c_driver);
+}
+
+module_exit(max17042_exit);
+
+MODULE_AUTHOR("<ms925.kim@samsung.com>");
+MODULE_DESCRIPTION("MAX17042 Fuel Gauge");
+MODULE_LICENSE("GPL");
diff --git a/drivers/power/max17042_fuelgauge_u1_kor.c b/drivers/power/max17042_fuelgauge_u1_kor.c
new file mode 100644
index 0000000..a759005
--- /dev/null
+++ b/drivers/power/max17042_fuelgauge_u1_kor.c
@@ -0,0 +1,855 @@
+/*
+ *  max17042-fuelgauge.c
+ *  fuel-gauge systems for lithium-ion (Li+) batteries
+ *
+ *  Copyright (C) 2010 Samsung Electronics
+ *
+ *  based on max17040_battery.c
+ *
+ *  <ms925.kim@samsung.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/platform_device.h>
+#include <linux/mutex.h>
+#include <linux/err.h>
+#include <linux/i2c.h>
+#include <linux/delay.h>
+#include <linux/power_supply.h>
+#include <linux/power/max17042_fuelgauge_u1.h>
+#include <linux/slab.h>
+#include <linux/interrupt.h>
+#include <linux/irq.h>
+#include <linux/gpio.h>
+
+static ssize_t sec_fg_show_property(struct device *dev,
+				    struct device_attribute *attr, char *buf);
+
+static ssize_t sec_fg_store(struct device *dev,
+			struct device_attribute *attr,
+			const char *buf, size_t count);
+
+struct max17042_chip {
+	struct i2c_client		*client;
+	struct delayed_work		work;
+	struct power_supply		battery;
+	struct max17042_platform_data	*pdata;
+
+	int vcell;			/* battery voltage */
+	int avgvcell;		/* average battery voltage */
+	int vfocv;		/* calculated battery voltage */
+	int soc;			/* battery capacity */
+	int raw_soc;		/* fuel gauge raw data */
+	int config;
+	int rcomp;
+	int status;
+	int temperature;
+	bool is_fuel_alerted;	/* fuel alerted */
+};
+
+static int max17042_get_property(struct power_supply *psy,
+			    enum power_supply_property psp,
+			    union power_supply_propval *val)
+{
+	struct max17042_chip *chip = container_of(psy,
+						  struct max17042_chip,
+						  battery);
+
+	switch (psp) {
+	case POWER_SUPPLY_PROP_STATUS:
+		val->intval = POWER_SUPPLY_STATUS_NOT_CHARGING;
+		break;
+	case POWER_SUPPLY_PROP_PRESENT:
+		val->intval = 1;
+		break;
+	case POWER_SUPPLY_PROP_ONLINE:
+		val->intval = 1;
+		break;
+	case POWER_SUPPLY_PROP_VOLTAGE_NOW:
+		switch (val->intval) {
+		case 0:	/*vcell */
+			val->intval = chip->vcell;
+			break;
+		case 1:	/*vfocv */
+			val->intval = chip->vfocv;
+			break;
+		}
+		break;
+	case POWER_SUPPLY_PROP_VOLTAGE_AVG:
+		val->intval = chip->avgvcell;
+		break;
+	case POWER_SUPPLY_PROP_CAPACITY:
+		switch (val->intval) {
+		case 0:	/*normal soc */
+			val->intval = chip->soc;
+			break;
+		case 1: /*raw soc */
+			val->intval = chip->raw_soc;
+			break;
+		}
+		break;
+	case POWER_SUPPLY_PROP_TEMP:
+		val->intval = chip->temperature / 100; /* result unit 0.1'C */
+		break;
+	default:
+		return -EINVAL;
+	}
+	return 0;
+}
+
+static int max17042_write_reg(struct i2c_client *client, int reg, u8 * buf)
+{
+	int ret;
+
+	ret = i2c_smbus_write_i2c_block_data(client, reg, 2, buf);
+
+	if (ret < 0)
+		dev_err(&client->dev, "%s: err %d (reg = 0x%x)\n",
+		__func__, ret, reg);
+
+	return ret;
+}
+
+static int max17042_read_reg(struct i2c_client *client, int reg, u8 * buf)
+{
+	int ret;
+
+	ret = i2c_smbus_read_i2c_block_data(client, reg, 2, buf);
+
+	if (ret < 0)
+		dev_err(&client->dev, "%s: err %d (reg = 0x%x)\n",
+		__func__, ret, reg);
+
+	return ret;
+}
+
+static void max17042_write_reg_array(struct i2c_client *client,
+				struct max17042_reg_data *data, int size)
+{
+	int i;
+
+	for (i = 0; i < size; i += 3)
+		max17042_write_reg(client, (data + i)->reg_addr,
+				   ((u8 *) (data + i)) + 1);
+}
+
+static void max17042_init_regs(struct i2c_client *client)
+{
+	u8 data[2];
+	/*struct max17042_platform_data *pdata = client->dev.platform_data; */
+
+	dev_info(&client->dev, "%s\n", __func__);
+
+/*	max17042_write_reg_array(client, pdata->init,
+		pdata->init_size);*/
+
+	if (max17042_read_reg(client, MAX17042_REG_FILTERCFG, data) < 0)
+		return;
+
+	/* Clear average vcell (12 sec) */
+	data[0] &= 0x8f;
+
+	max17042_write_reg(client, MAX17042_REG_FILTERCFG, data);
+}
+
+static void max17042_alert_init(struct i2c_client *client)
+{
+	struct max17042_platform_data *pdata = client->dev.platform_data;
+
+	dev_info(&client->dev, "%s\n", __func__);
+
+	max17042_write_reg_array(client, pdata->alert_init,
+		pdata->alert_init_size);
+}
+
+static int max17042_read_vfocv(struct i2c_client *client)
+{
+	u8 data[2];
+	u32 vfocv = 0;
+	struct max17042_chip *chip = i2c_get_clientdata(client);
+
+	if (max17042_read_reg(client, MAX17042_REG_VFOCV, data) < 0)
+		return -1;
+
+	vfocv = ((data[0] >> 3) + (data[1] << 5)) * 625 / 1000;
+
+	chip->vfocv = vfocv;
+
+	return vfocv;
+}
+
+static int max17042_read_vfsoc(struct i2c_client *client)
+{
+	u8 data[2];
+	u32 vfsoc = 0;
+
+	if (max17042_read_reg(client, MAX17042_REG_SOC_VF, data) < 0)
+		return -1;
+
+	vfsoc = data[1];
+
+	return vfsoc;
+}
+
+static void max17042_reset_soc(struct i2c_client *client)
+{
+	u8 data[2];
+
+	dev_info(&client->dev, "%s : Before quick-start - "
+		"VfOCV(%d), VfSOC(%d)\n",
+		__func__, max17042_read_vfocv(client),
+		max17042_read_vfsoc(client));
+
+	if (max17042_read_reg(client, MAX17042_REG_MISCCFG, data) < 0)
+		return;
+
+	/* Set bit10 makes quick start */
+	data[1] |= (0x1 << 2);
+	max17042_write_reg(client, MAX17042_REG_MISCCFG, data);
+
+	msleep(500);
+
+	dev_info(&client->dev, "%s : After quick-start - "
+		"VfOCV(%d), VfSOC(%d)\n",
+		__func__, max17042_read_vfocv(client),
+		max17042_read_vfsoc(client));
+
+#if 0
+	data[0] = 0x0F;
+	data[1] = 0x00;
+	max17042_write_reg(client, 0x60, data);
+#endif
+
+	return;
+}
+
+static void max17042_get_vcell(struct i2c_client *client)
+{
+	struct max17042_chip *chip = i2c_get_clientdata(client);
+	u8 data[2];
+
+	if (max17042_read_reg(client, MAX17042_REG_VCELL, data) < 0)
+		return;
+
+	chip->vcell = ((data[0] >> 3) + (data[1] << 5)) * 625;
+
+	if (max17042_read_reg(client, MAX17042_REG_AVGVCELL, data) < 0)
+		return;
+
+	chip->avgvcell = ((data[0] >> 3) + (data[1] << 5)) * 625;
+
+	/* printk(KERN_ERR "%s : vcell = %dmV\n", __func__, chip->vcell); */
+}
+
+static void max17042_get_config(struct i2c_client *client)
+{
+	struct max17042_chip *chip = i2c_get_clientdata(client);
+	u8 data[2];
+
+	if (max17042_read_reg(client, MAX17042_REG_CONFIG, data) < 0)
+		return;
+
+	chip->config = (data[1] << 8) | data[0];
+
+	/* printk(KERN_ERR "%s : %x, %x, config = 0x%x\n", __func__,
+			data[1], data[0], chip->config); */
+}
+
+static void max17042_get_rcomp(struct i2c_client *client)
+{
+	struct max17042_chip *chip = i2c_get_clientdata(client);
+	u8 data[2];
+
+	if (max17042_read_reg(client, MAX17042_REG_RCOMP, data) < 0)
+		return;
+
+	chip->rcomp = (data[1] << 8) | data[0];
+
+	/* printk(KERN_ERR "%s : %x, %x, rcomp = 0x%x\n", __func__,
+			 data[1], data[0], chip->rcomp); */
+}
+
+static void max17042_set_rcomp(struct i2c_client *client, u16 rcomp)
+{
+	struct max17042_chip *chip = i2c_get_clientdata(client);
+	u8 data[2];
+
+	data[0] = rcomp & 0xff;
+	data[1] = rcomp >> 8;
+	if (max17042_write_reg(client, MAX17042_REG_RCOMP, data) < 0)
+		return;
+}
+
+static void max17042_get_status(struct i2c_client *client)
+{
+	struct max17042_chip *chip = i2c_get_clientdata(client);
+	u8 data[2];
+
+	if (max17042_read_reg(client, MAX17042_REG_STATUS, data) < 0)
+		return;
+
+	chip->status = (data[1] << 8) | data[0];
+
+	/* printk(KERN_ERR "%s : %x, %x = status = 0x%x\n", __func__,
+			 data[1], data[0], chip->status); */
+}
+
+static void max17042_get_soc(struct i2c_client *client)
+{
+	struct max17042_chip *chip = i2c_get_clientdata(client);
+	u8 data[2];
+	unsigned int soc, psoc;
+	int temp_soc;
+	static int fg_zcount;
+
+	if (max17042_read_reg(client, MAX17042_REG_SOC_VF, data) < 0)
+		return;
+
+	psoc = (data[1]*100)+(data[0]*100/256);
+	chip->raw_soc = psoc;
+
+	if (psoc > 100) {
+		temp_soc = ((psoc-60)*10000)/9700;
+		/* under 160(psoc), 0% */
+	} else
+		temp_soc = 0;
+
+	soc = temp_soc/100;
+	soc = min(soc, (uint)100);
+
+	if (soc == 0) {
+		fg_zcount++;
+		if (fg_zcount >= 3) {
+			/* pr_info("[fg] real 0%\n"); */
+			soc = 0;
+			fg_zcount = 0;
+		} else
+			soc = chip->soc;
+	} else
+		fg_zcount = 0;
+
+	chip->soc = soc;
+
+	/* pr_info("soc = %d%%, raw_soc = %d\n",
+			 chip->soc, chip->raw_soc); */
+}
+
+static void max17042_get_temperature(struct i2c_client *client)
+{
+	struct max17042_chip *chip = i2c_get_clientdata(client);
+	u8 data[2];
+	s32 temper = 0;
+
+	if (max17042_read_reg(client, MAX17042_REG_TEMPERATURE, data) < 0)
+		return;
+
+	/* data[] store 2's compliment format number */
+	if (data[1] & (0x1 << 7)) {
+		/* Negative */
+		temper = ((~(data[1])) & 0xFF) + 1;
+		temper *= (-1000);
+	} else {
+		temper = data[1] & 0x7F;
+		temper *= 1000;
+		temper += data[0] * 39 / 10;
+	}
+
+	dev_dbg(&client->dev, "%s: MAX17042 Temperature = %d\n",
+		__func__, chip->temperature);
+
+	chip->temperature = temper;
+}
+
+static void max17042_get_version(struct i2c_client *client)
+{
+	u8 data[2];
+
+	if (max17042_read_reg(client, MAX17042_REG_VERSION, data) < 0)
+		return;
+
+	dev_info(&client->dev, "MAX17042 Fuel-Gauge Ver %d%d\n",
+			data[0], data[1]);
+}
+
+static void max17042_disable_intr(struct i2c_client *client)
+{
+	u8 data[2];
+
+	pr_info("%s :\n", __func__);
+
+	if (max17042_read_reg(client, MAX17042_REG_CONFIG, data) < 0) {
+		dev_err(&client->dev, "%s : fail to read reg\n", __func__);
+		return;
+	}
+	data[0] &= (~(0x1 << 2));
+
+	max17042_write_reg(client, MAX17042_REG_CONFIG, data);
+}
+
+static void max17042_enable_intr(struct i2c_client *client)
+{
+	u8 data[2];
+
+	pr_info("%s :\n", __func__);
+
+	if (max17042_read_reg(client, MAX17042_REG_CONFIG, data) < 0) {
+		dev_err(&client->dev, "%s : fail to read reg\n", __func__);
+		return;
+	}
+	data[0] |= (0x1 << 2);
+
+	max17042_write_reg(client, MAX17042_REG_CONFIG, data);
+}
+
+static void max17042_clear_intr(struct i2c_client *client)
+{
+	u8 data[2];
+
+	pr_info("%s :\n", __func__);
+
+	if (max17042_read_reg(client, MAX17042_REG_STATUS, data) < 0) {
+		dev_err(&client->dev, "%s : fail to read reg\n", __func__);
+		return;
+	}
+
+	data[1] &= 0x88;
+	max17042_write_reg(client, MAX17042_REG_STATUS, data);
+	msleep(200);
+}
+
+static int max17042_set_property(struct power_supply *psy,
+			    enum power_supply_property psp,
+			    const union power_supply_propval *val)
+{
+	struct max17042_chip *chip = container_of(psy,
+						  struct max17042_chip,
+						  battery);
+	u8 data[2];
+
+	switch (psp) {
+	case POWER_SUPPLY_PROP_TEMP:
+		if (chip->pdata->enable_gauging_temperature) {
+			data[0] = 0;
+			data[1] = val->intval;
+			/*
+			pr_info("MAX17042"
+				"Temperature(write) = %d\n",
+				data[1]);
+			*/
+			max17042_write_reg(chip->client,
+					   MAX17042_REG_TEMPERATURE, data);
+		} else
+			return -EINVAL;
+		break;
+	default:
+		return -EINVAL;
+	}
+	return 0;
+}
+
+static void max17042_work(struct work_struct *work)
+{
+	struct max17042_chip *chip;
+
+	chip = container_of(work, struct max17042_chip, work.work);
+
+	max17042_get_vcell(chip->client);
+	max17042_read_vfocv(chip->client);
+	max17042_get_soc(chip->client);
+	max17042_get_status(chip->client);
+
+	if (chip->pdata->enable_gauging_temperature)
+		max17042_get_temperature(chip->client);
+
+	if ((chip->status&0x02) == 0x02) {
+		max17042_get_config(chip->client);
+		pr_info("config 0x%x, status 0x%x, vcell 0x%x, row_soc 0x%x\n",
+			chip->config, chip->status, chip->vcell, chip->raw_soc);
+		/*
+		panic("[1]fuel gauge reset occurred!");
+		*/
+	}
+
+	if (chip->is_fuel_alerted) {
+		if (!(chip->status&0x0400)) { /* Smn clear check */
+			chip->is_fuel_alerted = false;
+			max17042_enable_intr(chip->client);
+			max17042_get_config(chip->client);
+			pr_info("config 0x%x, status 0x%x\n",
+				chip->config, chip->status);
+		} else {
+			max17042_get_config(chip->client);
+			if (chip->config&0x4) /* intr disable check */
+				max17042_disable_intr(chip->client);
+		}
+	}
+
+	schedule_delayed_work(&chip->work, MAX17042_LONG_DELAY);
+}
+
+static enum power_supply_property max17042_battery_props[] = {
+	POWER_SUPPLY_PROP_STATUS,
+	POWER_SUPPLY_PROP_PRESENT,
+	POWER_SUPPLY_PROP_TEMP,
+	POWER_SUPPLY_PROP_ONLINE,
+	POWER_SUPPLY_PROP_VOLTAGE_NOW,
+	POWER_SUPPLY_PROP_CAPACITY,
+};
+
+#define SEC_FG_ATTR(_name)			\
+{						\
+	.attr = { .name = #_name,		\
+		  .mode = 0664 },		\
+	.show = sec_fg_show_property,		\
+	.store = sec_fg_store,			\
+}
+
+static struct device_attribute sec_fg_attrs[] = {
+	SEC_FG_ATTR(fg_reset_soc),
+	SEC_FG_ATTR(fg_read_soc),
+};
+
+enum {
+	FG_RESET_SOC = 0,
+	FG_READ_SOC,
+};
+
+static ssize_t sec_fg_show_property(struct device *dev,
+				    struct device_attribute *attr, char *buf)
+{
+	struct power_supply *psy = dev_get_drvdata(dev);
+	struct max17042_chip *chip = container_of(psy,
+						  struct max17042_chip,
+						  battery);
+
+	int i = 0;
+	const ptrdiff_t off = attr - sec_fg_attrs;
+
+	switch (off) {
+	case FG_READ_SOC:
+		max17042_get_soc(chip->client);
+		i += scnprintf(buf + i, PAGE_SIZE - i, "%d\n",
+			chip->soc);
+		break;
+	default:
+		i = -EINVAL;
+	}
+
+	return i;
+}
+
+static ssize_t sec_fg_store(struct device *dev,
+			     struct device_attribute *attr,
+			     const char *buf, size_t count)
+{
+	struct power_supply *psy = dev_get_drvdata(dev);
+	struct max17042_chip *chip = container_of(psy,
+						  struct max17042_chip,
+						  battery);
+
+	int x = 0;
+	int ret = 0;
+	const ptrdiff_t off = attr - sec_fg_attrs;
+
+	switch (off) {
+	case FG_RESET_SOC:
+		if (sscanf(buf, "%d\n", &x) == 1) {
+			if (x == 1)
+				max17042_reset_soc(chip->client);
+			ret = count;
+		}
+#if 1
+/* tester requested to sustain unity with parental models but
+	keep source code for later */
+		{
+			struct power_supply *psy =
+				power_supply_get_by_name("battery");
+			union power_supply_propval value;
+
+			if (!psy) {
+				pr_err("%s: fail to get battery ps\n",
+					 __func__);
+				return -ENODEV;
+			}
+
+			value.intval = 0;	/* dummy value */
+			psy->set_property(psy,
+				POWER_SUPPLY_PROP_CAPACITY, &value);
+		}
+#endif
+		break;
+	default:
+		ret = -EINVAL;
+	}
+
+	return ret;
+}
+
+static int fuelgauge_create_attrs(struct device *dev)
+{
+	int i, rc;
+
+	for (i = 0; i < ARRAY_SIZE(sec_fg_attrs); i++) {
+		rc = device_create_file(dev, &sec_fg_attrs[i]);
+		if (rc)
+			goto fg_attrs_failed;
+	}
+	goto succeed;
+
+fg_attrs_failed:
+	while (i--)
+		device_remove_file(dev, &sec_fg_attrs[i]);
+succeed:
+	return rc;
+}
+
+static bool max17042_check_status(struct i2c_client *client)
+{
+	u8 data[2];
+	bool ret = false;
+
+	/* check if Smn was generated */
+	if (max17042_read_reg(client, MAX17042_REG_STATUS, data) < 0)
+		return -1;
+
+	dev_info(&client->dev, "%s : status_reg(%02x%02x)\n",
+			__func__, data[1], data[0]);
+
+	/* minimum SOC threshold exceeded. */
+	if (data[1] & (0x1 << 2))
+		ret = true;
+
+	/* clear status reg */
+	if (!ret) {
+		data[1] = 0;
+		max17042_write_reg(client, MAX17042_REG_STATUS, data);
+		msleep(200);
+	}
+
+	return ret;
+}
+
+static irqreturn_t max17042_irq_thread(int irq, void *irq_data)
+{
+	bool max17042_alert_status = false;
+	struct max17042_chip *chip = irq_data;
+
+	max17042_get_soc(chip->client);
+	max17042_alert_status = max17042_check_status(chip->client);
+
+	if (max17042_alert_status) {
+		chip->is_fuel_alerted = true;
+		if (chip->pdata->low_batt_cb)
+			chip->pdata->low_batt_cb();
+		max17042_disable_intr(chip->client);
+		max17042_get_config(chip->client);
+		max17042_get_status(chip->client);
+		pr_info("status = 0x%x\n", chip->status);
+	} else {
+		printk(KERN_ERR "fuelguage invalid alert!\n");
+	}
+
+	dev_info(&chip->client->dev,
+		"%s : PMIC IRQ (%d), FUEL GAUGE IRQ (%d),"
+		"STATUS (0x%x), CONFIG (0x%x)\n",
+		__func__, gpio_get_value(GPIO_PMIC_IRQ),
+		gpio_get_value(chip->pdata->alert_gpio),
+		chip->status, chip->config);
+
+	msleep(200);
+
+	return IRQ_HANDLED;
+}
+
+static int max17042_irq_init(struct max17042_chip *chip)
+{
+	int ret;
+	u8 data[2];
+
+	/* 1. Set max17042 alert configuration. */
+	max17042_alert_init(chip->client);
+
+	chip->is_fuel_alerted = false;
+
+	/* 2. Request irq */
+	if (chip->client->irq) {
+		ret = request_threaded_irq(chip->client->irq, NULL,
+				max17042_irq_thread,
+				IRQF_TRIGGER_LOW | IRQF_ONESHOT,
+				"max17042 fuel alert", chip);
+		if (ret) {
+			dev_err(&chip->client->dev, "failed to reqeust IRQ\n");
+			return ret;
+		}
+
+		ret = enable_irq_wake(chip->client->irq);
+		if (ret < 0)
+			dev_err(&chip->client->dev,
+				"failed to enable wakeup src %d\n", ret);
+	}
+
+	if (max17042_read_reg(chip->client, MAX17042_REG_CONFIG, data)
+		< 0)
+		return -1;
+
+	/*Enable Alert (Aen = 1) */
+	data[0] |= (0x1 << 2);
+
+	max17042_write_reg(chip->client, MAX17042_REG_CONFIG, data);
+
+	dev_info(&chip->client->dev, "%s : config_reg(%02x%02x)\n",
+		__func__, data[1], data[0]);
+
+	return 0;
+}
+
+static int __devinit max17042_probe(struct i2c_client *client,
+			const struct i2c_device_id *id)
+{
+	struct i2c_adapter *adapter = to_i2c_adapter(client->dev.parent);
+	struct max17042_chip *chip;
+	int ret;
+
+	if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BYTE))
+		return -EIO;
+
+	chip = kzalloc(sizeof(*chip), GFP_KERNEL);
+	if (!chip)
+		return -ENOMEM;
+
+	chip->client = client;
+	chip->pdata = client->dev.platform_data;
+
+	i2c_set_clientdata(client, chip);
+
+	chip->battery.name		= "fuelgauge",
+	chip->battery.type		= POWER_SUPPLY_TYPE_BATTERY,
+	chip->battery.get_property	= max17042_get_property,
+	chip->battery.set_property	= max17042_set_property,
+	chip->battery.properties	= max17042_battery_props,
+	chip->battery.num_properties	= ARRAY_SIZE(max17042_battery_props),
+	ret = power_supply_register(&client->dev, &chip->battery);
+	if (ret) {
+		dev_err(&client->dev, "failed: power supply register\n");
+		kfree(chip);
+		return ret;
+	}
+
+	/* initialize fuel gauge registers */
+	max17042_init_regs(client);
+
+	/* check rcomp & config */
+	max17042_get_rcomp(client);
+	max17042_get_config(client);
+	pr_info("rcomp = 0x%04x, config = 0x%04x\n",
+		chip->rcomp, chip->config);
+
+	if (chip->rcomp != MAX17042_NEW_RCOMP) {
+		max17042_set_rcomp(client, MAX17042_NEW_RCOMP);
+		pr_info("set new rcomp = 0x%04x\n", MAX17042_NEW_RCOMP);
+		max17042_get_rcomp(client);
+		pr_info("new rcomp = 0x%04x\n", chip->rcomp);
+	}
+
+	/* register low batt intr */
+	ret = max17042_irq_init(chip);
+	if (ret)
+		goto err_kfree;
+
+	max17042_get_version(client);
+
+	/* create fuelgauge attributes */
+	fuelgauge_create_attrs(chip->battery.dev);
+
+	max17042_get_status(client);
+	if (chip->status & 0x7700) {
+		max17042_clear_intr(client);
+		max17042_get_status(client);
+		pr_info("reset status = 0x%x\n", chip->status);
+	}
+
+	INIT_DELAYED_WORK_DEFERRABLE(&chip->work, max17042_work);
+	schedule_delayed_work(&chip->work, MAX17042_SHORT_DELAY);
+
+	return 0;
+
+err_kfree:
+	kfree(chip);
+	return ret;
+}
+
+static int __devexit max17042_remove(struct i2c_client *client)
+{
+	struct max17042_chip *chip = i2c_get_clientdata(client);
+
+	power_supply_unregister(&chip->battery);
+	cancel_delayed_work(&chip->work);
+	kfree(chip);
+	return 0;
+}
+
+#ifdef CONFIG_PM
+
+static int max17042_suspend(struct i2c_client *client, pm_message_t state)
+{
+	struct max17042_chip *chip = i2c_get_clientdata(client);
+
+	cancel_delayed_work(&chip->work);
+	return 0;
+}
+
+static int max17042_resume(struct i2c_client *client)
+{
+	struct max17042_chip *chip = i2c_get_clientdata(client);
+
+	schedule_delayed_work(&chip->work, MAX17042_SHORT_DELAY);
+	return 0;
+}
+
+#else
+
+#define max17042_suspend NULL
+#define max17042_resume NULL
+
+#endif /* CONFIG_PM */
+
+static const struct i2c_device_id max17042_id[] = {
+	{"max17042", 0},
+	{}
+};
+
+MODULE_DEVICE_TABLE(i2c, max17042_id);
+
+static struct i2c_driver max17042_i2c_driver = {
+	.driver	= {
+		.name	= "max17042",
+	},
+	.probe		= max17042_probe,
+	.remove		= __devexit_p(max17042_remove),
+	.suspend	= max17042_suspend,
+	.resume		= max17042_resume,
+	.id_table	= max17042_id,
+};
+
+static int __init max17042_init(void)
+{
+	return i2c_add_driver(&max17042_i2c_driver);
+}
+
+module_init(max17042_init);
+
+static void __exit max17042_exit(void)
+{
+	i2c_del_driver(&max17042_i2c_driver);
+}
+
+module_exit(max17042_exit);
+
+MODULE_AUTHOR("<ms925.kim@samsung.com>");
+MODULE_DESCRIPTION("MAX17042 Fuel Gauge");
+MODULE_LICENSE("GPL");
diff --git a/drivers/power/max8922_charger_s2plus.c b/drivers/power/max8922_charger_s2plus.c
new file mode 100644
index 0000000..86b8af7
--- /dev/null
+++ b/drivers/power/max8922_charger_s2plus.c
@@ -0,0 +1,320 @@
+/*
+ *  max8922-charger.c
+ *  MAXIM 8922 charger interface driver
+ *
+ *  Copyright (C) 2011 Samsung Electronics
+ *
+ *  <ms925.kim@samsung.com>
+ *
+ *  Copyright (C) 2012 Samsung Electronics
+ *  Jaecheol kim <jc22.kim@samsung.com>
+ *
+ *  modify S2PLUS usb charger based on max8922_charger_u1.c
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/platform_device.h>
+#include <linux/err.h>
+#include <linux/slab.h>
+#include <linux/interrupt.h>
+#include <linux/irq.h>
+#include <linux/gpio.h>
+#include <linux/delay.h>
+#include <linux/power_supply.h>
+#include <linux/power/max8922_charger_u1.h>
+#include <linux/battery/samsung_battery.h>
+
+struct max8922_info {
+	struct device *dev;
+	struct power_supply psy_bat;
+	struct max8922_platform_data *pdata;
+	bool is_usb_cable;
+	int irq_chg_ing;
+};
+
+static enum power_supply_property max8922_battery_props[] = {
+	POWER_SUPPLY_PROP_STATUS,
+	POWER_SUPPLY_PROP_ONLINE,
+};
+
+static inline int max8922_is_charging(struct max8922_info *info)
+{
+	int ta_nconnected = gpio_get_value(info->pdata->gpio_ta_nconnected);
+	int chg_ing = gpio_get_value(info->pdata->gpio_chg_ing);
+
+	dev_info(info->dev, "%s: charging state = 0x%x\n", __func__,
+		 (ta_nconnected << 1) | chg_ing);
+
+	/*return (ta_nconnected == 0 && chg_ing == 0); */
+	return (ta_nconnected << 1) | chg_ing;
+}
+
+static int max8922_get_property(struct power_supply *psy,
+				enum power_supply_property psp,
+				union power_supply_propval *val)
+{
+	struct max8922_info *info =
+	    container_of(psy, struct max8922_info, psy_bat);
+
+	switch (psp) {
+	case POWER_SUPPLY_PROP_STATUS:
+		switch (max8922_is_charging(info)) {
+		case 0:
+			val->intval = POWER_SUPPLY_STATUS_CHARGING;
+			break;
+		case 1:
+			val->intval = POWER_SUPPLY_STATUS_NOT_CHARGING;
+			break;
+		default:
+			val->intval = POWER_SUPPLY_STATUS_DISCHARGING;
+			break;
+		}
+		break;
+	case POWER_SUPPLY_PROP_ONLINE:
+		/* battery is always online */
+		val->intval = 1;
+		break;
+	default:
+		return -EINVAL;
+	}
+	return 0;
+}
+
+static int max8922_enable_charging(struct max8922_info *info, bool enable)
+{
+	int gpio_chg_en = info->pdata->gpio_chg_en;
+	unsigned long flags;
+
+	dev_info(info->dev, "%s: %s charging,%s\n", __func__,
+		 enable ? "enable" : "disable",
+		 info->is_usb_cable ? "USB" : "TA");
+
+	if (enable) {
+		if (info->is_usb_cable) {
+			/* Charging by USB cable */
+			gpio_direction_output(gpio_chg_en, GPIO_LEVEL_HIGH);
+		} else {
+			/* Charging by TA cable */
+			gpio_direction_output(gpio_chg_en, GPIO_LEVEL_HIGH);
+			mdelay(5);
+
+			local_irq_save(flags);
+			gpio_direction_output(gpio_chg_en, GPIO_LEVEL_LOW);
+			udelay(300);
+			gpio_direction_output(gpio_chg_en, GPIO_LEVEL_HIGH);
+			local_irq_restore(flags);
+		}
+	} else
+		gpio_direction_output(gpio_chg_en, GPIO_LEVEL_LOW);
+
+	msleep(300);
+	return max8922_is_charging(info);
+}
+
+static int max8922_set_property(struct power_supply *psy,
+				enum power_supply_property psp,
+				const union power_supply_propval *val)
+{
+	struct max8922_info *info =
+	    container_of(psy, struct max8922_info, psy_bat);
+	bool enable;
+
+	switch (psp) {
+	case POWER_SUPPLY_PROP_CURRENT_NOW:	/* Set charging current */
+		info->is_usb_cable = (val->intval <= CHARGER_USB_CURRENT);
+		break;
+	case POWER_SUPPLY_PROP_STATUS:	/* Enable/Disable charging */
+		enable = (val->intval == POWER_SUPPLY_STATUS_CHARGING);
+		max8922_enable_charging(info, enable);
+		break;
+	default:
+		return -EINVAL;
+	}
+	return 0;
+}
+
+static irqreturn_t max8922_chg_ing_irq(int irq, void *data)
+{
+	struct max8922_info *info = data;
+	int ret = 0;
+
+	dev_info(info->dev, "chg_ing IRQ occurred!\n");
+
+	if (gpio_get_value(info->pdata->gpio_ta_nconnected))
+		return IRQ_HANDLED;
+
+	if (info->pdata->topoff_cb)
+		ret = info->pdata->topoff_cb();
+
+	if (ret) {
+		dev_err(info->dev, "%s: error from topoff_cb(%d)\n", __func__,
+			ret);
+		return IRQ_HANDLED;
+	}
+
+	return IRQ_HANDLED;
+}
+
+static __devinit int max8922_probe(struct platform_device *pdev)
+{
+	struct max8922_platform_data *pdata = dev_get_platdata(&pdev->dev);
+	struct max8922_info *info;
+	int ret;
+
+	dev_info(&pdev->dev, "%s : MAX8922 Charger Driver Loading\n", __func__);
+
+	info = kzalloc(sizeof(*info), GFP_KERNEL);
+	if (!info)
+		return -ENOMEM;
+
+	platform_set_drvdata(pdev, info);
+
+	info->dev = &pdev->dev;
+	info->pdata = pdata;
+
+	info->psy_bat.name = "max8922-charger",
+	    info->psy_bat.type = POWER_SUPPLY_TYPE_BATTERY,
+	    info->psy_bat.properties = max8922_battery_props,
+	    info->psy_bat.num_properties = ARRAY_SIZE(max8922_battery_props),
+	    info->psy_bat.get_property = max8922_get_property,
+	    info->psy_bat.set_property = max8922_set_property,
+	    ret = power_supply_register(&pdev->dev, &info->psy_bat);
+	if (ret) {
+		dev_err(info->dev, "Failed to register psy_bat\n");
+		goto err_kfree;
+	}
+
+	if (pdata->cfg_gpio) {
+		ret = pdata->cfg_gpio();
+		if (ret) {
+			dev_err(info->dev, "failed to configure GPIO\n");
+			goto err_kfree;
+		}
+	}
+
+	if (gpio_is_valid(pdata->gpio_chg_en)) {
+		if (!pdata->gpio_chg_en) {
+			dev_err(info->dev, "gpio_chg_en defined as 0\n");
+			WARN_ON(!pdata->gpio_chg_en);
+			ret = -EIO;
+			goto err_kfree;
+		}
+		gpio_request(pdata->gpio_chg_en, "MAX8922 CHG_EN");
+	}
+
+	if (gpio_is_valid(pdata->gpio_chg_ing)) {
+		if (!pdata->gpio_chg_ing) {
+			dev_err(info->dev, "gpio_chg_ing defined as 0\n");
+			WARN_ON(!pdata->gpio_chg_ing);
+			ret = -EIO;
+			goto err_kfree;
+		}
+		gpio_request(pdata->gpio_chg_ing, "MAX8922 CHG_ING");
+	}
+
+	if (gpio_is_valid(pdata->gpio_ta_nconnected)) {
+		if (!pdata->gpio_ta_nconnected) {
+			dev_err(info->dev, "gpio_ta_nconnected defined as 0\n");
+			WARN_ON(!pdata->gpio_ta_nconnected);
+			ret = -EIO;
+			goto err_kfree;
+		}
+		gpio_request(pdata->gpio_ta_nconnected,
+			     "MAX8922 TA_nCONNECTED");
+	}
+#if 0
+	info->irq_chg_ing = gpio_to_irq(pdata->gpio_chg_ing);
+
+	ret = request_threaded_irq(info->irq_chg_ing, NULL,
+				   max8922_chg_ing_irq,
+				   IRQF_TRIGGER_RISING | IRQF_ONESHOT,
+				   "chg_ing", info);
+	if (ret)
+		dev_err(&pdev->dev, "%s: fail to request chg_ing IRQ:"
+			" %d: %d\n", __func__, info->irq_chg_ing, ret);
+#endif
+
+	return 0;
+err_kfree:
+	power_supply_unregister(&info->psy_bat);
+	platform_set_drvdata(pdev, NULL);
+	kfree(info);
+	return ret;
+}
+
+static int __devexit max8922_remove(struct platform_device *pdev)
+{
+	struct max8922_info *info = platform_get_drvdata(pdev);
+
+	power_supply_unregister(&info->psy_bat);
+
+	gpio_free(info->pdata->gpio_chg_en);
+	gpio_free(info->pdata->gpio_chg_ing);
+	gpio_free(info->pdata->gpio_ta_nconnected);
+
+	kfree(info);
+
+	return 0;
+}
+
+#ifdef CONFIG_PM
+static int max8922_suspend(struct device *dev)
+{
+	struct max8922_info *info = dev_get_drvdata(dev);
+
+	if (info && info->irq_chg_ing)
+		disable_irq(info->irq_chg_ing);
+
+	return 0;
+}
+
+static int max8922_resume(struct device *dev)
+{
+	struct max8922_info *info = dev_get_drvdata(dev);
+
+	if (info && info->irq_chg_ing)
+		enable_irq(info->irq_chg_ing);
+
+	return 0;
+}
+#else
+#define max8922_charger_suspend	NULL
+#define max8922_charger_resume	NULL
+#endif
+
+static const struct dev_pm_ops max8922_pm_ops = {
+	.suspend = max8922_suspend,
+	.resume = max8922_resume,
+};
+
+static struct platform_driver max8922_driver = {
+	.driver = {
+		   .name = "max8922-charger",
+		   .owner = THIS_MODULE,
+		   .pm = &max8922_pm_ops,
+		   },
+	.probe = max8922_probe,
+	.remove = __devexit_p(max8922_remove),
+};
+
+static int __init max8922_init(void)
+{
+	return platform_driver_register(&max8922_driver);
+}
+
+static void __exit max8922_exit(void)
+{
+	platform_driver_register(&max8922_driver);
+}
+
+module_init(max8922_init);
+module_exit(max8922_exit);
+
+MODULE_DESCRIPTION("MAXIM 8922 charger control driver");
+MODULE_AUTHOR("<ms925.kim@samsung.com>");
+MODULE_LICENSE("GPL");
diff --git a/drivers/power/max8922_charger_u1.c b/drivers/power/max8922_charger_u1.c
new file mode 100644
index 0000000..5cbbb08
--- /dev/null
+++ b/drivers/power/max8922_charger_u1.c
@@ -0,0 +1,314 @@
+/*
+ *  max8922-charger.c
+ *  MAXIM 8922 charger interface driver
+ *
+ *  Copyright (C) 2011 Samsung Electronics
+ *
+ *  <ms925.kim@samsung.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/platform_device.h>
+#include <linux/err.h>
+#include <linux/slab.h>
+#include <linux/interrupt.h>
+#include <linux/irq.h>
+#include <linux/gpio.h>
+#include <linux/delay.h>
+#include <linux/power_supply.h>
+#include <linux/power/max8922_charger_u1.h>
+
+struct max8922_info {
+	struct device *dev;
+	struct power_supply psy_bat;
+	struct max8922_platform_data *pdata;
+	bool is_usb_cable;
+	int irq_chg_ing;
+};
+
+static enum power_supply_property max8922_battery_props[] = {
+	POWER_SUPPLY_PROP_STATUS,
+	POWER_SUPPLY_PROP_ONLINE,
+};
+
+static inline int max8922_is_charging(struct max8922_info *info)
+{
+	int ta_nconnected = gpio_get_value(info->pdata->gpio_ta_nconnected);
+	int chg_ing = gpio_get_value(info->pdata->gpio_chg_ing);
+
+	dev_info(info->dev, "%s: charging state = 0x%x\n", __func__,
+		 (ta_nconnected << 1) | chg_ing);
+
+	/*return (ta_nconnected == 0 && chg_ing == 0); */
+	return (ta_nconnected << 1) | chg_ing;
+}
+
+static int max8922_get_property(struct power_supply *psy,
+				enum power_supply_property psp,
+				union power_supply_propval *val)
+{
+	struct max8922_info *info =
+	    container_of(psy, struct max8922_info, psy_bat);
+
+	switch (psp) {
+	case POWER_SUPPLY_PROP_STATUS:
+		switch (max8922_is_charging(info)) {
+		case 0:
+			val->intval = POWER_SUPPLY_STATUS_CHARGING;
+			break;
+		case 1:
+			val->intval = POWER_SUPPLY_STATUS_NOT_CHARGING;
+			break;
+		default:
+			val->intval = POWER_SUPPLY_STATUS_DISCHARGING;
+			break;
+		}
+		break;
+	case POWER_SUPPLY_PROP_ONLINE:
+		/* battery is always online */
+		val->intval = 1;
+		break;
+	default:
+		return -EINVAL;
+	}
+	return 0;
+}
+
+static int max8922_enable_charging(struct max8922_info *info, bool enable)
+{
+	int gpio_chg_en = info->pdata->gpio_chg_en;
+	unsigned long flags;
+
+	dev_info(info->dev, "%s: %s charging,%s\n", __func__,
+		 enable ? "enable" : "disable",
+		 info->is_usb_cable ? "USB" : "TA");
+
+	if (enable) {
+		if (info->is_usb_cable) {
+			/* Charging by USB cable */
+			gpio_direction_output(gpio_chg_en, GPIO_LEVEL_HIGH);
+		} else {
+			/* Charging by TA cable */
+			gpio_direction_output(gpio_chg_en, GPIO_LEVEL_HIGH);
+			mdelay(5);
+
+			local_irq_save(flags);
+			gpio_direction_output(gpio_chg_en, GPIO_LEVEL_LOW);
+			udelay(300);
+			gpio_direction_output(gpio_chg_en, GPIO_LEVEL_HIGH);
+			local_irq_restore(flags);
+		}
+	} else
+		gpio_direction_output(gpio_chg_en, GPIO_LEVEL_LOW);
+
+	msleep(300);
+	return max8922_is_charging(info);
+}
+
+static int max8922_set_property(struct power_supply *psy,
+				enum power_supply_property psp,
+				const union power_supply_propval *val)
+{
+	struct max8922_info *info =
+	    container_of(psy, struct max8922_info, psy_bat);
+	bool enable;
+
+	switch (psp) {
+	case POWER_SUPPLY_PROP_CURRENT_NOW:	/* Set charging current */
+		info->is_usb_cable = (val->intval <= 450);
+		break;
+	case POWER_SUPPLY_PROP_STATUS:	/* Enable/Disable charging */
+		enable = (val->intval == POWER_SUPPLY_STATUS_CHARGING);
+		max8922_enable_charging(info, enable);
+		break;
+	default:
+		return -EINVAL;
+	}
+	return 0;
+}
+
+static irqreturn_t max8922_chg_ing_irq(int irq, void *data)
+{
+	struct max8922_info *info = data;
+	int ret = 0;
+
+	dev_info(info->dev, "chg_ing IRQ occurred!\n");
+
+	if (gpio_get_value(info->pdata->gpio_ta_nconnected))
+		return IRQ_HANDLED;
+
+	if (info->pdata->topoff_cb)
+		ret = info->pdata->topoff_cb();
+
+	if (ret) {
+		dev_err(info->dev, "%s: error from topoff_cb(%d)\n", __func__,
+			ret);
+		return IRQ_HANDLED;
+	}
+
+	return IRQ_HANDLED;
+}
+
+static __devinit int max8922_probe(struct platform_device *pdev)
+{
+	struct max8922_platform_data *pdata = dev_get_platdata(&pdev->dev);
+	struct max8922_info *info;
+	int ret;
+
+	dev_info(&pdev->dev, "%s : MAX8922 Charger Driver Loading\n", __func__);
+
+	info = kzalloc(sizeof(*info), GFP_KERNEL);
+	if (!info)
+		return -ENOMEM;
+
+	platform_set_drvdata(pdev, info);
+
+	info->dev = &pdev->dev;
+	info->pdata = pdata;
+
+	info->psy_bat.name = "max8922-charger",
+	    info->psy_bat.type = POWER_SUPPLY_TYPE_BATTERY,
+	    info->psy_bat.properties = max8922_battery_props,
+	    info->psy_bat.num_properties = ARRAY_SIZE(max8922_battery_props),
+	    info->psy_bat.get_property = max8922_get_property,
+	    info->psy_bat.set_property = max8922_set_property,
+	    ret = power_supply_register(&pdev->dev, &info->psy_bat);
+	if (ret) {
+		dev_err(info->dev, "Failed to register psy_bat\n");
+		goto err_kfree;
+	}
+
+	if (pdata->cfg_gpio) {
+		ret = pdata->cfg_gpio();
+		if (ret) {
+			dev_err(info->dev, "failed to configure GPIO\n");
+			goto err_kfree;
+		}
+	}
+
+	if (gpio_is_valid(pdata->gpio_chg_en)) {
+		if (!pdata->gpio_chg_en) {
+			dev_err(info->dev, "gpio_chg_en defined as 0\n");
+			WARN_ON(!pdata->gpio_chg_en);
+			ret = -EIO;
+			goto err_kfree;
+		}
+		gpio_request(pdata->gpio_chg_en, "MAX8922 CHG_EN");
+	}
+
+	if (gpio_is_valid(pdata->gpio_chg_ing)) {
+		if (!pdata->gpio_chg_ing) {
+			dev_err(info->dev, "gpio_chg_ing defined as 0\n");
+			WARN_ON(!pdata->gpio_chg_ing);
+			ret = -EIO;
+			goto err_kfree;
+		}
+		gpio_request(pdata->gpio_chg_ing, "MAX8922 CHG_ING");
+	}
+
+	if (gpio_is_valid(pdata->gpio_ta_nconnected)) {
+		if (!pdata->gpio_ta_nconnected) {
+			dev_err(info->dev, "gpio_ta_nconnected defined as 0\n");
+			WARN_ON(!pdata->gpio_ta_nconnected);
+			ret = -EIO;
+			goto err_kfree;
+		}
+		gpio_request(pdata->gpio_ta_nconnected,
+			     "MAX8922 TA_nCONNECTED");
+	}
+#if 0
+	info->irq_chg_ing = gpio_to_irq(pdata->gpio_chg_ing);
+
+	ret = request_threaded_irq(info->irq_chg_ing, NULL,
+				   max8922_chg_ing_irq,
+				   IRQF_TRIGGER_RISING | IRQF_ONESHOT,
+				   "chg_ing", info);
+	if (ret)
+		dev_err(&pdev->dev, "%s: fail to request chg_ing IRQ:"
+			" %d: %d\n", __func__, info->irq_chg_ing, ret);
+#endif
+
+	return 0;
+err_kfree:
+	power_supply_unregister(&info->psy_bat);
+	platform_set_drvdata(pdev, NULL);
+	kfree(info);
+	return ret;
+}
+
+static int __devexit max8922_remove(struct platform_device *pdev)
+{
+	struct max8922_info *info = platform_get_drvdata(pdev);
+
+	power_supply_unregister(&info->psy_bat);
+
+	gpio_free(info->pdata->gpio_chg_en);
+	gpio_free(info->pdata->gpio_chg_ing);
+	gpio_free(info->pdata->gpio_ta_nconnected);
+
+	kfree(info);
+
+	return 0;
+}
+
+#ifdef CONFIG_PM
+static int max8922_suspend(struct device *dev)
+{
+	struct max8922_info *info = dev_get_drvdata(dev);
+
+	if (info && info->irq_chg_ing)
+		disable_irq(info->irq_chg_ing);
+
+	return 0;
+}
+
+static int max8922_resume(struct device *dev)
+{
+	struct max8922_info *info = dev_get_drvdata(dev);
+
+	if (info && info->irq_chg_ing)
+		enable_irq(info->irq_chg_ing);
+
+	return 0;
+}
+#else
+#define max8922_charger_suspend	NULL
+#define max8922_charger_resume	NULL
+#endif
+
+static const struct dev_pm_ops max8922_pm_ops = {
+	.suspend = max8922_suspend,
+	.resume = max8922_resume,
+};
+
+static struct platform_driver max8922_driver = {
+	.driver = {
+		   .name = "max8922-charger",
+		   .owner = THIS_MODULE,
+		   .pm = &max8922_pm_ops,
+		   },
+	.probe = max8922_probe,
+	.remove = __devexit_p(max8922_remove),
+};
+
+static int __init max8922_init(void)
+{
+	return platform_driver_register(&max8922_driver);
+}
+
+static void __exit max8922_exit(void)
+{
+	platform_driver_register(&max8922_driver);
+}
+
+module_init(max8922_init);
+module_exit(max8922_exit);
+
+MODULE_DESCRIPTION("MAXIM 8922 charger control driver");
+MODULE_AUTHOR("<ms925.kim@samsung.com>");
+MODULE_LICENSE("GPL");
diff --git a/drivers/power/max8997_charger.c b/drivers/power/max8997_charger.c
new file mode 100644
index 0000000..9514d74
--- /dev/null
+++ b/drivers/power/max8997_charger.c
@@ -0,0 +1,216 @@
+/*
+ * max8997_charger.c - Power supply consumer driver for the Maxim 8997/8966
+ *
+ *  Copyright (C) 2011 Samsung Electronics
+ *  MyungJoo Ham <myungjoo.ham@samsung.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ */
+
+#include <linux/err.h>
+#include <linux/module.h>
+#include <linux/slab.h>
+#include <linux/platform_device.h>
+#include <linux/power_supply.h>
+#include <linux/mfd/max8997.h>
+#include <linux/mfd/max8997-private.h>
+
+struct charger_data {
+	struct device *dev;
+	struct max8997_dev *iodev;
+	struct power_supply battery;
+};
+
+static enum power_supply_property max8997_battery_props[] = {
+	POWER_SUPPLY_PROP_STATUS, /* "FULL" or "NOT FULL" only. */
+	POWER_SUPPLY_PROP_PRESENT, /* the presence of battery */
+	POWER_SUPPLY_PROP_ONLINE, /* charger is active or not */
+};
+
+/* Note that the charger control is done by a current regulator "CHARGER" */
+static int max8997_battery_get_property(struct power_supply *psy,
+		enum power_supply_property psp,
+		union power_supply_propval *val)
+{
+	struct charger_data *charger = container_of(psy,
+			struct charger_data, battery);
+	struct i2c_client *i2c = charger->iodev->i2c;
+	int ret;
+	u8 reg;
+
+	switch (psp) {
+	case POWER_SUPPLY_PROP_STATUS:
+		val->intval = 0;
+		ret = max8997_read_reg(i2c, MAX8997_REG_STATUS4, &reg);
+		if (ret)
+			return ret;
+
+		if ((reg & (1 << 0)) == 0x1)
+			val->intval = POWER_SUPPLY_STATUS_FULL;
+		else if ((reg & (1 << 1)) && !(reg & (1 << 2)) &&
+			 (reg & (1 << 3)) && (reg & (3 << 4)) &&
+			 !(reg & (1 << 6)))
+			val->intval = POWER_SUPPLY_STATUS_CHARGING;
+		else if ((reg & (1 << 1)) && !(reg & (1 << 6)))
+			val->intval = POWER_SUPPLY_STATUS_NOT_CHARGING;
+		else
+			val->intval = POWER_SUPPLY_STATUS_DISCHARGING;
+
+		break;
+	case POWER_SUPPLY_PROP_PRESENT:
+		val->intval = 0;
+		ret = max8997_read_reg(i2c, MAX8997_REG_STATUS4, &reg);
+		if (ret)
+			return ret;
+		if ((reg & (1 << 2)) == 0x0)
+			val->intval = 1;
+
+		break;
+	case POWER_SUPPLY_PROP_ONLINE:
+		val->intval = 0;
+		ret = max8997_read_reg(i2c, MAX8997_REG_STATUS4, &reg);
+		if (ret)
+			return ret;
+		/* DCINOK */
+		if (reg & (1 << 1))
+			val->intval = 1;
+
+		break;
+	default:
+		return -EINVAL;
+	}
+
+	return 0;
+}
+
+static __devinit int max8997_battery_probe(struct platform_device *pdev)
+{
+	int ret = 0;
+	struct charger_data *charger;
+	struct max8997_dev *iodev = dev_get_drvdata(pdev->dev.parent);
+	struct max8997_platform_data *pdata = dev_get_platdata(iodev->dev);
+
+	if (!pdata)
+		return -EINVAL;
+
+	if (pdata->eoc_mA) {
+		u8 val = (pdata->eoc_mA - 50) / 10;
+		if (val < 0)
+			val = 0;
+		if (val > 0xf)
+			val = 0xf;
+
+		ret = max8997_update_reg(iodev->i2c,
+				MAX8997_REG_MBCCTRL5, val, 0xf);
+		if (ret < 0) {
+			dev_err(&pdev->dev, "Cannot use i2c bus.\n");
+			return ret;
+		}
+	}
+
+	switch (pdata->timeout) {
+	case 5:
+		ret = max8997_update_reg(iodev->i2c, MAX8997_REG_MBCCTRL1,
+				0x2 << 4, 0x7 << 4);
+		break;
+	case 6:
+		ret = max8997_update_reg(iodev->i2c, MAX8997_REG_MBCCTRL1,
+				0x3 << 4, 0x7 << 4);
+		break;
+	case 7:
+		ret = max8997_update_reg(iodev->i2c, MAX8997_REG_MBCCTRL1,
+				0x4 << 4, 0x7 << 4);
+		break;
+	case 0:
+		ret = max8997_update_reg(iodev->i2c, MAX8997_REG_MBCCTRL1,
+				0x7 << 4, 0x7 << 4);
+		break;
+	default:
+		dev_err(&pdev->dev, "incorrect timeout value (%d)\n",
+				pdata->timeout);
+		return -EINVAL;
+	}
+	if (ret < 0) {
+		dev_err(&pdev->dev, "Cannot use i2c bus.\n");
+		return ret;
+	}
+
+	charger = kzalloc(sizeof(struct charger_data), GFP_KERNEL);
+	if (charger == NULL) {
+		dev_err(&pdev->dev, "Cannot allocate memory.\n");
+		return -ENOMEM;
+	}
+
+	platform_set_drvdata(pdev, charger);
+
+	charger->battery.name = "max8997_pmic";
+	charger->battery.type = POWER_SUPPLY_TYPE_BATTERY;
+	charger->battery.get_property = max8997_battery_get_property;
+	charger->battery.properties = max8997_battery_props;
+	charger->battery.num_properties = ARRAY_SIZE(max8997_battery_props);
+
+	charger->dev = &pdev->dev;
+	charger->iodev = iodev;
+
+	ret = power_supply_register(&pdev->dev, &charger->battery);
+	if (ret) {
+		dev_err(&pdev->dev, "failed: power supply register\n");
+		goto err;
+	}
+
+	return 0;
+err:
+	kfree(charger);
+	return ret;
+}
+
+static int __devexit max8997_battery_remove(struct platform_device *pdev)
+{
+	struct charger_data *charger = platform_get_drvdata(pdev);
+
+	power_supply_unregister(&charger->battery);
+	kfree(charger);
+	return 0;
+}
+
+static const struct platform_device_id max8997_battery_id[] = {
+	{ "max8997-battery", 0 },
+};
+
+static struct platform_driver max8997_battery_driver = {
+	.driver = {
+		.name = "max8997-battery",
+		.owner = THIS_MODULE,
+	},
+	.probe = max8997_battery_probe,
+	.remove = __devexit_p(max8997_battery_remove),
+	.id_table = max8997_battery_id,
+};
+
+static int __init max8997_battery_init(void)
+{
+	return platform_driver_register(&max8997_battery_driver);
+}
+subsys_initcall(max8997_battery_init);
+
+static void __exit max8997_battery_cleanup(void)
+{
+	platform_driver_unregister(&max8997_battery_driver);
+}
+module_exit(max8997_battery_cleanup);
+
+MODULE_DESCRIPTION("MAXIM 8997/8966 battery control driver");
+MODULE_AUTHOR("MyungJoo Ham <myungjoo.ham@samsung.com>");
+MODULE_LICENSE("GPL");
diff --git a/drivers/power/max8997_charger_px.c b/drivers/power/max8997_charger_px.c
new file mode 100644
index 0000000..9582d66
--- /dev/null
+++ b/drivers/power/max8997_charger_px.c
@@ -0,0 +1,485 @@
+/*
+ *  max8997-charger.c
+ *  MAXIM 8997 charger interface driver
+ *
+ *  Copyright (C) 2010 Samsung Electronics
+ *
+ *  <ms925.kim@samsung.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/platform_device.h>
+#include <linux/err.h>
+#include <linux/i2c.h>
+#include <linux/slab.h>
+#include <linux/interrupt.h>
+#include <linux/power_supply.h>
+#include <linux/regulator/machine.h>
+#include <linux/mfd/max8997.h>
+#include <linux/mfd/max8997-private.h>
+
+/* MAX8997_REG_STATUS4 */
+#define DCINOK_SHIFT		1
+#define DCINOK_MASK		(1 << DCINOK_SHIFT)
+#define DETBAT_SHIFT		2
+#define DETBAT_MASK		(1 << DETBAT_SHIFT)
+
+/*  MAX8997_REG_MBCCTRL1 */
+#define TFCH_SHIFT		4
+#define TFCH_MASK		(7 << TFCH_SHIFT)
+
+/*  MAX8997_REG_MBCCTRL2 */
+#define MBCHOSTEN_SHIFT		6
+#define VCHGR_FC_SHIFT		7
+#define MBCHOSTEN_MASK		(1 << MBCHOSTEN_SHIFT)
+#define VCHGR_FC_MASK		(1 << VCHGR_FC_SHIFT)
+
+/*  MAX8997_REG_MBCCTRL3 */
+#define MBCCV_SHIFT		0
+#define MBCCV_MASK		(0xF << MBCCV_SHIFT)
+
+/* MAX8997_REG_MBCCTRL4 */
+#define MBCICHFC_SHIFT		0
+#define MBCICHFC_MASK		(0xF << MBCICHFC_SHIFT)
+
+/* MAX8997_REG_MBCCTRL5 */
+#define ITOPOFF_SHIFT		0
+#define ITOPOFF_MASK		(0xF << ITOPOFF_SHIFT)
+
+/* MAX8997_REG_MBCCTRL6 */
+#define AUTOSTOP_SHIFT		5
+#define AUTOSTOP_MASK		(1 << AUTOSTOP_SHIFT)
+
+/* MAX8997_REG_OTPCGHCVS */
+#define OTPCGHCVS_SHIFT		0
+#define OTPCGHCVS_MASK		(3 << OTPCGHCVS_SHIFT)
+
+enum {
+	BAT_NOT_DETECTED,
+	BAT_DETECTED
+};
+
+struct chg_data {
+	struct device			*dev;
+	struct max8997_dev		*max8997;
+	struct power_supply		psy_bat;
+	struct max8997_power_data	*power;
+	int				irq_topoff;
+	int				irq_chgins;
+	int				irq_chgrm;
+};
+
+static enum power_supply_property max8997_battery_props[] = {
+	POWER_SUPPLY_PROP_STATUS,
+	POWER_SUPPLY_PROP_PRESENT,
+	POWER_SUPPLY_PROP_ONLINE,
+};
+
+/* vf check */
+static bool max8997_check_detbat(struct chg_data *chg)
+{
+	struct i2c_client *i2c = chg->max8997->i2c;
+	u8 data = 0;
+	int ret;
+
+	ret = max8997_read_reg(i2c, MAX8997_REG_STATUS4, &data);
+
+	if (ret < 0) {
+		dev_err(chg->dev, "%s: max8997_read_reg error(%d)\n", __func__,
+				ret);
+		return ret;
+	}
+
+	if (data & DETBAT_MASK)
+		printk(KERN_WARNING "%s: batt not detected(0x%x)\n", __func__,
+				data);
+
+	return data & DETBAT_MASK;
+}
+
+/* whether charging enabled or not */
+static bool max8997_check_vdcin(struct chg_data *chg)
+{
+	struct i2c_client *i2c = chg->max8997->i2c;
+	u8 data = 0;
+	int ret;
+
+	ret = max8997_read_reg(i2c, MAX8997_REG_STATUS4, &data);
+
+	if (ret < 0) {
+		dev_err(chg->dev, "%s: max8997_read_reg error(%d)\n", __func__,
+				ret);
+		return ret;
+	}
+
+	return data & DCINOK_MASK;
+}
+
+static int max8997_chg_get_property(struct power_supply *psy,
+				enum power_supply_property psp,
+				union power_supply_propval *val)
+{
+	struct chg_data *chg = container_of(psy, struct chg_data, psy_bat);
+
+	switch (psp) {
+	case POWER_SUPPLY_PROP_STATUS:
+		if (max8997_check_vdcin(chg))
+			val->intval = POWER_SUPPLY_STATUS_CHARGING;
+		else
+			val->intval = POWER_SUPPLY_STATUS_DISCHARGING;
+		break;
+	case POWER_SUPPLY_PROP_PRESENT:
+		if (max8997_check_detbat(chg))
+			val->intval = BAT_NOT_DETECTED;
+		else
+			val->intval = BAT_DETECTED;
+		break;
+	case POWER_SUPPLY_PROP_ONLINE:
+		/* battery is always online */
+		val->intval = 1;
+		break;
+	default:
+		return -EINVAL;
+	}
+	return 0;
+}
+
+static int max8997_disable_charging(struct chg_data *chg)
+{
+	struct i2c_client *i2c = chg->max8997->i2c;
+	int ret;
+	u8 mask;
+
+	dev_info(chg->dev, "%s: disable charging\n", __func__);
+	mask = MBCHOSTEN_MASK | VCHGR_FC_MASK;
+	ret = max8997_update_reg(i2c, MAX8997_REG_MBCCTRL2, 0, mask);
+	if (ret < 0)
+		dev_err(chg->dev, "%s: fail update reg!!!\n", __func__);
+
+	return ret;
+}
+
+static int max8997_set_charging_current(struct chg_data *chg, int chg_current)
+{
+	struct i2c_client *i2c = chg->max8997->i2c;
+	int ret;
+	u8 val;
+
+	if (chg_current < 200 || chg_current > 950)
+		return -EINVAL;
+
+	val = ((chg_current - 200) / 50) & 0xf;
+
+	dev_info(chg->dev, "%s: charging current=%d", __func__, chg_current);
+	ret = max8997_update_reg(i2c, MAX8997_REG_MBCCTRL4,
+		(val << MBCICHFC_SHIFT), MBCICHFC_MASK);
+	if (ret)
+		dev_err(chg->dev, "%s: fail to write chg current(%d)\n",
+				__func__, ret);
+
+	return ret;
+}
+
+static int max8997_enable_charging(struct chg_data *chg)
+{
+	struct i2c_client *i2c = chg->max8997->i2c;
+	int ret;
+	u8 val, mask;
+
+	/* set auto stop disable */
+	ret = max8997_update_reg(i2c, MAX8997_REG_MBCCTRL6,
+			(0 << AUTOSTOP_SHIFT), AUTOSTOP_MASK);
+	if (ret)
+		dev_err(chg->dev, "%s: failt to disable autostop(%d)\n",
+				__func__, ret);
+
+	/* set fast charging enable and main battery charging enable */
+	val = (1 << MBCHOSTEN_SHIFT) | (1 << VCHGR_FC_SHIFT);
+	mask = MBCHOSTEN_MASK | VCHGR_FC_MASK;
+	ret = max8997_update_reg(i2c, MAX8997_REG_MBCCTRL2, val, mask);
+	if (ret)
+		dev_err(chg->dev, "%s: failt to enable charging(%d)\n",
+				__func__, ret);
+
+	return ret;
+}
+
+/* TODO: remove this function later */
+static int max8997_enable_charging_x(struct chg_data *chg, int charge_type)
+{
+	struct i2c_client *i2c = chg->max8997->i2c;
+	int ret;
+	u8 val, mask;
+
+	/* enable charging */
+	if (charge_type == POWER_SUPPLY_CHARGE_TYPE_FAST) {
+		/* ac */
+		dev_info(chg->dev, "%s: TA charging", __func__);
+		/* set fast charging current : 650mA */
+		ret = max8997_update_reg(i2c, MAX8997_REG_MBCCTRL4,
+			(9 << MBCICHFC_SHIFT), MBCICHFC_MASK);
+		if (ret)
+			goto err;
+
+	} else if (charge_type == POWER_SUPPLY_CHARGE_TYPE_TRICKLE) {
+		/* usb */
+		dev_info(chg->dev, "%s: USB charging", __func__);
+		/* set fast charging current : 450mA */
+		ret = max8997_update_reg(i2c, MAX8997_REG_MBCCTRL4,
+				(5 << MBCICHFC_SHIFT), MBCICHFC_MASK);
+		if (ret)
+			goto err;
+	} else {
+		dev_err(chg->dev, "%s: invalid arg\n", __func__);
+		ret = -EINVAL;
+		goto err;
+	}
+
+	/* set auto stop disable */
+	ret = max8997_update_reg(i2c, MAX8997_REG_MBCCTRL6,
+			(0 << AUTOSTOP_SHIFT), AUTOSTOP_MASK);
+	if (ret)
+		goto err;
+
+	/* set fast charging enable and main battery charging enable */
+	val = (1 << MBCHOSTEN_SHIFT) | (1 << VCHGR_FC_SHIFT);
+	mask = MBCHOSTEN_MASK | VCHGR_FC_MASK;
+	ret = max8997_update_reg(i2c, MAX8997_REG_MBCCTRL2, val, mask);
+	if (ret)
+		goto err;
+
+	return 0;
+err:
+	dev_err(chg->dev, "%s: max8997 update reg error!(%d)\n", __func__, ret);
+	return ret;
+}
+
+static int max8997_chg_set_property(struct power_supply *psy,
+			    enum power_supply_property psp,
+			    const union power_supply_propval *val)
+{
+	int ret, reg_val;
+	struct chg_data *chg = container_of(psy, struct chg_data, psy_bat);
+	struct i2c_client *i2c = chg->max8997->i2c;
+
+	switch (psp) {
+	case POWER_SUPPLY_PROP_CHARGE_TYPE: /* TODO: remove this */
+		if (val->intval == POWER_SUPPLY_CHARGE_TYPE_NONE)
+			ret = max8997_disable_charging(chg);
+		else
+			ret = max8997_enable_charging_x(chg, val->intval);
+		break;
+	case POWER_SUPPLY_PROP_CURRENT_NOW: /* Set charging current */
+		ret = max8997_set_charging_current(chg, val->intval);
+		break;
+	case POWER_SUPPLY_PROP_STATUS:	/* Enable/Disable charging */
+		if (val->intval == POWER_SUPPLY_STATUS_CHARGING)
+			ret = max8997_enable_charging(chg);
+		else
+			ret = max8997_disable_charging(chg);
+		break;
+	case POWER_SUPPLY_PROP_CHARGE_FULL: /* Set recharging current */
+		if (val->intval < 50 || val->intval > 200) {
+			dev_err(chg->dev, "%s: invalid topoff current(%d)\n",
+					__func__, val->intval);
+			return -EINVAL;
+		}
+		reg_val = (val->intval - 50) / 10;
+
+		dev_info(chg->dev, "%s: Set toppoff current to 0x%x\n",
+				__func__, reg_val);
+		ret = max8997_update_reg(i2c, MAX8997_REG_MBCCTRL5,
+				(reg_val << ITOPOFF_SHIFT), ITOPOFF_MASK);
+		if (ret) {
+			dev_err(chg->dev, "%s: max8997 update reg error(%d)\n",
+					__func__, ret);
+			return ret;
+		}
+		break;
+	default:
+		return -EINVAL;
+	}
+	return ret;
+}
+
+static irqreturn_t max8997_chg_topoff_irq(int irq, void *data)
+{
+	struct chg_data *chg = data;
+	int ret = 0;
+
+	if (chg->power->topoff_cb)
+		ret = chg->power->topoff_cb();
+
+	if (ret) {
+		dev_err(chg->dev, "%s: error from topoff_cb(%d)\n", __func__,
+				ret);
+		return IRQ_HANDLED;
+	}
+
+	dev_info(chg->dev, " Topoff IRQ occurred!\n");
+
+	return IRQ_HANDLED;
+}
+
+static irqreturn_t max8997_chg_charger_irq(int irq, void *data)
+{
+	struct chg_data *chg = data;
+	int ret = 0;
+	bool insert = false;
+
+	insert = (irq == chg->irq_chgins);
+
+	dev_info(chg->dev, "%s: charger IRQ(%d) occurred!\n", __func__, insert);
+
+	if (chg->power->set_charger)
+		ret = chg->power->set_charger(insert);
+
+	if (ret) {
+		dev_err(chg->dev, "%s: error from set_charger(%d)\n", __func__,
+				ret);
+		return IRQ_HANDLED;
+	}
+
+	dev_info(chg->dev, "%s: charger IRQ(%d) occurred!\n", __func__, insert);
+
+	return IRQ_HANDLED;
+}
+
+static __devinit int max8997_charger_probe(struct platform_device *pdev)
+{
+	struct max8997_dev *max8997 = dev_get_drvdata(pdev->dev.parent);
+	struct max8997_platform_data *pdata = dev_get_platdata(max8997->dev);
+	struct i2c_client *i2c = max8997->i2c;
+	struct chg_data *chg;
+	int ret = 0;
+
+	dev_info(&pdev->dev, "%s : MAX8997 Charger Driver Loading\n", __func__);
+
+	chg = kzalloc(sizeof(*chg), GFP_KERNEL);
+	if (!chg)
+		return -ENOMEM;
+
+	chg->dev = &pdev->dev;
+	chg->max8997 = max8997;
+	chg->power = pdata->power;
+	chg->irq_topoff = max8997->irq_base + MAX8997_IRQ_TOPOFF;
+
+	chg->irq_chgins = max8997->irq_base + MAX8997_IRQ_CHGINS;
+	chg->irq_chgrm = max8997->irq_base + MAX8997_IRQ_CHGRM;
+
+	chg->psy_bat.name = "max8997-charger",
+	chg->psy_bat.type = POWER_SUPPLY_TYPE_BATTERY,
+	chg->psy_bat.properties = max8997_battery_props,
+	chg->psy_bat.num_properties = ARRAY_SIZE(max8997_battery_props),
+	chg->psy_bat.get_property = max8997_chg_get_property,
+	chg->psy_bat.set_property = max8997_chg_set_property,
+
+	platform_set_drvdata(pdev, chg);
+
+	/* TODO: configure by platform data*/
+	ret = max8997_update_reg(i2c, MAX8997_REG_MBCCTRL1, /* Disable */
+		(0x7 << TFCH_SHIFT), TFCH_MASK);
+	if (ret < 0)
+		goto err_kfree;
+
+	/* TODO: configure by platform data*/
+	ret = max8997_update_reg(i2c, MAX8997_REG_MBCCTRL3, /* 4.2V */
+		(0x0 << MBCCV_SHIFT), MBCCV_MASK);
+	if (ret < 0)
+		goto err_kfree;
+
+	/* Set OVP voltage threshold */
+	ret = max8997_update_reg(i2c, MAX8997_REG_OTPCGHCVS,
+			(0x01 << OTPCGHCVS_SHIFT), OTPCGHCVS_MASK);
+	if (ret < 0)
+		goto err_kfree;
+
+	/* init power supplier framework */
+	ret = power_supply_register(&pdev->dev, &chg->psy_bat);
+	if (ret) {
+		pr_err("Failed to register power supply psy_bat\n");
+		goto err_kfree;
+	}
+
+	ret = request_threaded_irq(chg->irq_topoff, NULL,
+			max8997_chg_topoff_irq, 0, "chg-topoff", chg);
+	if (ret < 0)
+		dev_err(&pdev->dev, "%s: fail to request topoff IRQ: %d: %d\n",
+				__func__, chg->irq_topoff, ret);
+
+	ret = request_threaded_irq(chg->irq_chgins, NULL,
+			max8997_chg_charger_irq, 0, "chg-insert", chg);
+	if (ret < 0)
+		dev_err(&pdev->dev, "%s: fail to request chgins IRQ: %d: %d\n",
+				__func__, chg->irq_chgins, ret);
+
+	ret = request_threaded_irq(chg->irq_chgrm, NULL,
+			max8997_chg_charger_irq, 0, "chg-remove", chg);
+	if (ret < 0)
+		dev_err(&pdev->dev, "%s: fail to request chgrm IRQ: %d: %d\n",
+				__func__, chg->irq_chgrm, ret);
+
+	return 0;
+
+err_kfree:
+	kfree(chg);
+	return ret;
+}
+
+static int __devexit max8997_charger_remove(struct platform_device *pdev)
+{
+	struct chg_data *chg = platform_get_drvdata(pdev);
+
+	power_supply_unregister(&chg->psy_bat);
+
+	kfree(chg);
+
+	return 0;
+}
+
+static int max8997_charger_suspend(struct device *dev)
+{
+	return 0;
+}
+
+static int max8997_charger_resume(struct device *dev)
+{
+	return 0;
+}
+
+static const struct dev_pm_ops max8997_charger_pm_ops = {
+	.suspend	= max8997_charger_suspend,
+	.resume		= max8997_charger_resume,
+};
+
+static struct platform_driver max8997_charger_driver = {
+	.driver = {
+		.name = "max8997-charger",
+		.owner = THIS_MODULE,
+		.pm = &max8997_charger_pm_ops,
+	},
+	.probe = max8997_charger_probe,
+	.remove = __devexit_p(max8997_charger_remove),
+};
+
+static int __init max8997_charger_init(void)
+{
+	return platform_driver_register(&max8997_charger_driver);
+}
+
+static void __exit max8997_charger_exit(void)
+{
+	platform_driver_register(&max8997_charger_driver);
+}
+
+module_init(max8997_charger_init);
+module_exit(max8997_charger_exit);
+
+MODULE_DESCRIPTION("MAXIM 8997 charger control driver");
+MODULE_AUTHOR("<ms925.kim@samsung.com>");
+MODULE_LICENSE("GPL");
diff --git a/drivers/power/max8997_charger_u1.c b/drivers/power/max8997_charger_u1.c
new file mode 100644
index 0000000..af4ef44
--- /dev/null
+++ b/drivers/power/max8997_charger_u1.c
@@ -0,0 +1,478 @@
+/*
+ *  max8997-charger.c
+ *  MAXIM 8997 charger interface driver
+ *
+ *  Copyright (C) 2010 Samsung Electronics
+ *
+ *  <ms925.kim@samsung.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/platform_device.h>
+#include <linux/err.h>
+#include <linux/i2c.h>
+#include <linux/slab.h>
+#include <linux/interrupt.h>
+#include <linux/power_supply.h>
+#include <linux/regulator/machine.h>
+#include <linux/mfd/max8997.h>
+#include <linux/mfd/max8997-private.h>
+
+/* MAX8997_REG_STATUS4 */
+#define DCINOK_SHIFT		1
+#define DCINOK_MASK		(1 << DCINOK_SHIFT)
+#define DETBAT_SHIFT		2
+#define DETBAT_MASK		(1 << DETBAT_SHIFT)
+
+/*  MAX8997_REG_MBCCTRL1 */
+#define TFCH_SHIFT		4
+#define TFCH_MASK		(7 << TFCH_SHIFT)
+
+/*  MAX8997_REG_MBCCTRL2 */
+#define MBCHOSTEN_SHIFT		6
+#define VCHGR_FC_SHIFT		7
+#define MBCHOSTEN_MASK		(1 << MBCHOSTEN_SHIFT)
+#define VCHGR_FC_MASK		(1 << VCHGR_FC_SHIFT)
+
+/*  MAX8997_REG_MBCCTRL3 */
+#define MBCCV_SHIFT		0
+#define MBCCV_MASK		(0xF << MBCCV_SHIFT)
+
+/* MAX8997_REG_MBCCTRL4 */
+#define MBCICHFC_SHIFT		0
+#define MBCICHFC_MASK		(0xF << MBCICHFC_SHIFT)
+
+/* MAX8997_REG_MBCCTRL5 */
+#define ITOPOFF_SHIFT		0
+#define ITOPOFF_MASK		(0xF << ITOPOFF_SHIFT)
+
+/* MAX8997_REG_MBCCTRL6 */
+#define AUTOSTOP_SHIFT		5
+#define AUTOSTOP_MASK		(1 << AUTOSTOP_SHIFT)
+
+enum {
+	BAT_NOT_DETECTED,
+	BAT_DETECTED
+};
+
+struct chg_data {
+	struct device			*dev;
+	struct max8997_dev		*max8997;
+	struct power_supply		psy_bat;
+	struct max8997_power_data	*power;
+	int				irq_topoff;
+	int				irq_chgins;
+	int				irq_chgrm;
+};
+
+static enum power_supply_property max8997_battery_props[] = {
+	POWER_SUPPLY_PROP_STATUS,
+	POWER_SUPPLY_PROP_PRESENT,
+	POWER_SUPPLY_PROP_ONLINE,
+};
+
+/* vf check */
+static bool max8997_check_detbat(struct chg_data *chg)
+{
+	struct i2c_client *i2c = chg->max8997->i2c;
+	u8 data = 0;
+	int ret;
+
+	ret = max8997_read_reg(i2c, MAX8997_REG_STATUS4, &data);
+
+	if (ret < 0) {
+		dev_err(chg->dev, "%s: max8997_read_reg error(%d)\n",
+			__func__, ret);
+		return ret;
+	}
+
+	if (data & DETBAT_MASK)
+		dev_info(chg->dev, "%s: batt not detected(0x%x)\n",
+			__func__, data);
+
+	return data & DETBAT_MASK;
+}
+
+/* whether charging enabled or not */
+static bool max8997_check_vdcin(struct chg_data *chg)
+{
+	struct i2c_client *i2c = chg->max8997->i2c;
+	u8 data = 0;
+	int ret;
+
+	ret = max8997_read_reg(i2c, MAX8997_REG_STATUS4, &data);
+
+	if (ret < 0) {
+		dev_err(chg->dev, "%s: max8997_read_reg error(%d)\n", __func__,
+				ret);
+		return ret;
+	}
+
+	return data & DCINOK_MASK;
+}
+
+static int max8997_chg_get_property(struct power_supply *psy,
+				enum power_supply_property psp,
+				union power_supply_propval *val)
+{
+	struct chg_data *chg = container_of(psy, struct chg_data, psy_bat);
+
+	switch (psp) {
+	case POWER_SUPPLY_PROP_STATUS:
+		if (max8997_check_vdcin(chg))
+			val->intval = POWER_SUPPLY_STATUS_CHARGING;
+		else
+			val->intval = POWER_SUPPLY_STATUS_DISCHARGING;
+		break;
+	case POWER_SUPPLY_PROP_PRESENT:
+		if (max8997_check_detbat(chg))
+			val->intval = BAT_NOT_DETECTED;
+		else
+			val->intval = BAT_DETECTED;
+		break;
+	case POWER_SUPPLY_PROP_ONLINE:
+		/* battery is always online */
+		val->intval = 1;
+		break;
+	default:
+		return -EINVAL;
+	}
+	return 0;
+}
+
+static int max8997_disable_charging(struct chg_data *chg)
+{
+	struct i2c_client *i2c = chg->max8997->i2c;
+	int ret;
+	u8 mask;
+
+	dev_info(chg->dev, "%s: disable charging\n", __func__);
+	mask = MBCHOSTEN_MASK | VCHGR_FC_MASK;
+	ret = max8997_update_reg(i2c, MAX8997_REG_MBCCTRL2, 0, mask);
+	if (ret < 0)
+		dev_err(chg->dev, "%s: fail update reg!!!\n", __func__);
+
+	return ret;
+}
+
+static int max8997_set_charging_current(struct chg_data *chg, int chg_current)
+{
+	struct i2c_client *i2c = chg->max8997->i2c;
+	int ret;
+	u8 val;
+
+	if (chg_current < 200 || chg_current > 950)
+		return -EINVAL;
+
+	val = ((chg_current - 200) / 50) & 0xf;
+
+	dev_info(chg->dev, "%s: charging current=%d", __func__, chg_current);
+	ret = max8997_update_reg(i2c, MAX8997_REG_MBCCTRL4,
+		(val << MBCICHFC_SHIFT), MBCICHFC_MASK);
+	if (ret)
+		dev_err(chg->dev, "%s: fail to write chg current(%d)\n",
+				__func__, ret);
+
+	return ret;
+}
+
+static int max8997_enable_charging(struct chg_data *chg)
+{
+	struct i2c_client *i2c = chg->max8997->i2c;
+	int ret;
+	u8 val, mask;
+
+	/* set auto stop disable */
+	ret = max8997_update_reg(i2c, MAX8997_REG_MBCCTRL6,
+			(0 << AUTOSTOP_SHIFT), AUTOSTOP_MASK);
+	if (ret)
+		dev_err(chg->dev, "%s: failt to disable autostop(%d)\n",
+				__func__, ret);
+
+	/* set fast charging enable and main battery charging enable */
+	val = (1 << MBCHOSTEN_SHIFT) | (1 << VCHGR_FC_SHIFT);
+	mask = MBCHOSTEN_MASK | VCHGR_FC_MASK;
+	ret = max8997_update_reg(i2c, MAX8997_REG_MBCCTRL2, val, mask);
+	if (ret)
+		dev_err(chg->dev, "%s: failt to enable charging(%d)\n",
+				__func__, ret);
+
+	return ret;
+}
+
+/* TODO: remove this function later */
+static int max8997_enable_charging_x(struct chg_data *chg, int charge_type)
+{
+	struct i2c_client *i2c = chg->max8997->i2c;
+	int ret;
+	u8 val, mask;
+
+	/* enable charging */
+	if (charge_type == POWER_SUPPLY_CHARGE_TYPE_FAST) {
+		/* ac */
+		dev_info(chg->dev, "%s: TA charging", __func__);
+		/* set fast charging current : 650mA */
+		ret = max8997_update_reg(i2c, MAX8997_REG_MBCCTRL4,
+			(9 << MBCICHFC_SHIFT), MBCICHFC_MASK);
+		if (ret)
+			goto err;
+
+	} else if (charge_type == POWER_SUPPLY_CHARGE_TYPE_TRICKLE) {
+		/* usb */
+		dev_info(chg->dev, "%s: USB charging", __func__);
+		/* set fast charging current : 450mA */
+		ret = max8997_update_reg(i2c, MAX8997_REG_MBCCTRL4,
+				(5 << MBCICHFC_SHIFT), MBCICHFC_MASK);
+		if (ret)
+			goto err;
+	} else {
+		dev_err(chg->dev, "%s: invalid arg\n", __func__);
+		ret = -EINVAL;
+		goto err;
+	}
+
+	/* set auto stop disable */
+	ret = max8997_update_reg(i2c, MAX8997_REG_MBCCTRL6,
+			(0 << AUTOSTOP_SHIFT), AUTOSTOP_MASK);
+	if (ret)
+		goto err;
+
+	/* set fast charging enable and main battery charging enable */
+	val = (1 << MBCHOSTEN_SHIFT) | (1 << VCHGR_FC_SHIFT);
+	mask = MBCHOSTEN_MASK | VCHGR_FC_MASK;
+	ret = max8997_update_reg(i2c, MAX8997_REG_MBCCTRL2, val, mask);
+	if (ret)
+		goto err;
+
+	return 0;
+err:
+	dev_err(chg->dev, "%s: max8997 update reg error!(%d)\n", __func__, ret);
+	return ret;
+}
+
+static int max8997_chg_set_property(struct power_supply *psy,
+			    enum power_supply_property psp,
+			    const union power_supply_propval *val)
+{
+	int ret, reg_val;
+	struct chg_data *chg = container_of(psy, struct chg_data, psy_bat);
+	struct i2c_client *i2c = chg->max8997->i2c;
+
+	switch (psp) {
+	case POWER_SUPPLY_PROP_CHARGE_TYPE: /* TODO: remove this */
+		if (val->intval == POWER_SUPPLY_CHARGE_TYPE_NONE)
+			ret = max8997_disable_charging(chg);
+		else
+			ret = max8997_enable_charging_x(chg, val->intval);
+		break;
+	case POWER_SUPPLY_PROP_CURRENT_NOW: /* Set charging current */
+		ret = max8997_set_charging_current(chg, val->intval);
+		break;
+	case POWER_SUPPLY_PROP_STATUS:	/* Enable/Disable charging */
+		if (val->intval == POWER_SUPPLY_STATUS_CHARGING)
+			ret = max8997_enable_charging(chg);
+		else
+			ret = max8997_disable_charging(chg);
+		break;
+	case POWER_SUPPLY_PROP_CHARGE_FULL: /* Set recharging current */
+		if (val->intval < 50 || val->intval > 200) {
+			dev_err(chg->dev, "%s: invalid topoff current(%d)\n",
+					__func__, val->intval);
+			return -EINVAL;
+		}
+		reg_val = (val->intval - 50) / 10;
+
+		dev_info(chg->dev, "%s: Set toppoff current to 0x%x\n",
+				__func__, reg_val);
+		ret = max8997_update_reg(i2c, MAX8997_REG_MBCCTRL5,
+				(reg_val << ITOPOFF_SHIFT), ITOPOFF_MASK);
+		if (ret) {
+			dev_err(chg->dev, "%s: max8997 update reg error(%d)\n",
+					__func__, ret);
+			return ret;
+		}
+		break;
+	default:
+		return -EINVAL;
+	}
+	return ret;
+}
+
+static irqreturn_t max8997_chg_topoff_irq(int irq, void *data)
+{
+	struct chg_data *chg = data;
+	int ret = 0;
+
+	if (chg->power->topoff_cb)
+		ret = chg->power->topoff_cb();
+
+	if (ret) {
+		dev_err(chg->dev, "%s: error from topoff_cb(%d)\n", __func__,
+				ret);
+		return IRQ_HANDLED;
+	}
+
+	dev_info(chg->dev, " Topoff IRQ occurred!\n");
+
+	return IRQ_HANDLED;
+}
+
+static irqreturn_t max8997_chg_charger_irq(int irq, void *data)
+{
+	struct chg_data *chg = data;
+	int ret = 0;
+	bool insert = false;
+
+	insert = (irq == chg->irq_chgins);
+
+	dev_info(chg->dev, "%s: charger IRQ(%d) occurred!\n", __func__, insert);
+
+	if (system_rev >= 0x3)
+		return IRQ_HANDLED;
+
+	if (chg->power->set_charger)
+		ret = chg->power->set_charger(insert);
+
+	if (ret) {
+		dev_err(chg->dev, "%s: error from set_charger(%d)\n", __func__,
+				ret);
+		return IRQ_HANDLED;
+	}
+
+	dev_info(chg->dev, "%s: charger IRQ(%d) occurred!\n", __func__, insert);
+
+	return IRQ_HANDLED;
+}
+
+static __devinit int max8997_charger_probe(struct platform_device *pdev)
+{
+	struct max8997_dev *max8997 = dev_get_drvdata(pdev->dev.parent);
+	struct max8997_platform_data *pdata = dev_get_platdata(max8997->dev);
+	struct i2c_client *i2c = max8997->i2c;
+	struct chg_data *chg;
+	int ret = 0;
+
+	dev_info(&pdev->dev, "%s : MAX8997 Charger Driver Loading\n", __func__);
+
+	chg = kzalloc(sizeof(*chg), GFP_KERNEL);
+	if (!chg)
+		return -ENOMEM;
+
+	chg->dev = &pdev->dev;
+	chg->max8997 = max8997;
+	chg->power = pdata->power;
+	chg->irq_topoff = max8997->irq_base + MAX8997_IRQ_TOPOFF;
+
+	chg->irq_chgins = max8997->irq_base + MAX8997_IRQ_CHGINS;
+	chg->irq_chgrm = max8997->irq_base + MAX8997_IRQ_CHGRM;
+
+	chg->psy_bat.name = "max8997-charger",
+	chg->psy_bat.type = POWER_SUPPLY_TYPE_BATTERY,
+	chg->psy_bat.properties = max8997_battery_props,
+	chg->psy_bat.num_properties = ARRAY_SIZE(max8997_battery_props),
+	chg->psy_bat.get_property = max8997_chg_get_property,
+	chg->psy_bat.set_property = max8997_chg_set_property,
+
+	platform_set_drvdata(pdev, chg);
+
+	/* TODO: configure by platform data*/
+	ret = max8997_update_reg(i2c, MAX8997_REG_MBCCTRL1, /* Disable */
+		(0x7 << TFCH_SHIFT), TFCH_MASK);
+	if (ret < 0)
+		goto err_kfree;
+
+	/* TODO: configure by platform data*/
+	ret = max8997_update_reg(i2c, MAX8997_REG_MBCCTRL3, /* 4.2V */
+		(0x0 << MBCCV_SHIFT), MBCCV_MASK);
+	if (ret < 0)
+		goto err_kfree;
+
+	/* init power supplier framework */
+	ret = power_supply_register(&pdev->dev, &chg->psy_bat);
+	if (ret) {
+		pr_err("Failed to register power supply psy_bat\n");
+		goto err_kfree;
+	}
+
+	ret = request_threaded_irq(chg->irq_topoff, NULL,
+			max8997_chg_topoff_irq, 0, "chg-topoff", chg);
+	if (ret < 0)
+		dev_err(&pdev->dev, "%s: fail to request topoff IRQ: %d: %d\n",
+				__func__, chg->irq_topoff, ret);
+
+	ret = request_threaded_irq(chg->irq_chgins, NULL,
+			max8997_chg_charger_irq, 0, "chg-insert", chg);
+	if (ret < 0)
+		dev_err(&pdev->dev, "%s: fail to request chgins IRQ: %d: %d\n",
+				__func__, chg->irq_chgins, ret);
+
+	ret = request_threaded_irq(chg->irq_chgrm, NULL,
+			max8997_chg_charger_irq, 0, "chg-remove", chg);
+	if (ret < 0)
+		dev_err(&pdev->dev, "%s: fail to request chgrm IRQ: %d: %d\n",
+				__func__, chg->irq_chgrm, ret);
+
+	return 0;
+
+err_kfree:
+	kfree(chg);
+	return ret;
+}
+
+static int __devexit max8997_charger_remove(struct platform_device *pdev)
+{
+	struct chg_data *chg = platform_get_drvdata(pdev);
+
+	power_supply_unregister(&chg->psy_bat);
+
+	kfree(chg);
+
+	return 0;
+}
+
+static int max8997_charger_suspend(struct device *dev)
+{
+	return 0;
+}
+
+static int max8997_charger_resume(struct device *dev)
+{
+	return 0;
+}
+
+static const struct dev_pm_ops max8997_charger_pm_ops = {
+	.suspend	= max8997_charger_suspend,
+	.resume		= max8997_charger_resume,
+};
+
+static struct platform_driver max8997_charger_driver = {
+	.driver = {
+		.name = "max8997-charger",
+		.owner = THIS_MODULE,
+		.pm = &max8997_charger_pm_ops,
+	},
+	.probe = max8997_charger_probe,
+	.remove = __devexit_p(max8997_charger_remove),
+};
+
+static int __init max8997_charger_init(void)
+{
+	return platform_driver_register(&max8997_charger_driver);
+}
+
+static void __exit max8997_charger_exit(void)
+{
+	platform_driver_register(&max8997_charger_driver);
+}
+
+module_init(max8997_charger_init);
+module_exit(max8997_charger_exit);
+
+MODULE_DESCRIPTION("MAXIM 8997 charger control driver");
+MODULE_AUTHOR("<ms925.kim@samsung.com>");
+MODULE_LICENSE("GPL");
diff --git a/drivers/power/pda_power.c b/drivers/power/pda_power.c
index 69f8aa3..81b7201 100644
--- a/drivers/power/pda_power.c
+++ b/drivers/power/pda_power.c
@@ -14,6 +14,7 @@
 #include <linux/platform_device.h>
 #include <linux/err.h>
 #include <linux/interrupt.h>
+#include <linux/notifier.h>
 #include <linux/power_supply.h>
 #include <linux/pda_power.h>
 #include <linux/regulator/consumer.h>
@@ -38,9 +39,8 @@ static struct timer_list supply_timer;
 static struct timer_list polling_timer;
 static int polling;
 
-#ifdef CONFIG_USB_OTG_UTILS
 static struct otg_transceiver *transceiver;
-#endif
+static struct notifier_block otg_nb;
 static struct regulator *ac_draw;
 
 enum {
@@ -222,7 +222,42 @@ static void polling_timer_func(unsigned long unused)
 #ifdef CONFIG_USB_OTG_UTILS
 static int otg_is_usb_online(void)
 {
-	return (transceiver->state == OTG_STATE_B_PERIPHERAL);
+	return (transceiver->last_event == USB_EVENT_VBUS ||
+		transceiver->last_event == USB_EVENT_ENUMERATED);
+}
+
+static int otg_is_ac_online(void)
+{
+	return (transceiver->last_event == USB_EVENT_CHARGER);
+}
+
+static int otg_handle_notification(struct notifier_block *nb,
+		unsigned long event, void *unused)
+{
+	switch (event) {
+	case USB_EVENT_CHARGER:
+		ac_status = PDA_PSY_TO_CHANGE;
+		break;
+	case USB_EVENT_VBUS:
+	case USB_EVENT_ENUMERATED:
+		usb_status = PDA_PSY_TO_CHANGE;
+		break;
+	case USB_EVENT_NONE:
+		ac_status = PDA_PSY_TO_CHANGE;
+		usb_status = PDA_PSY_TO_CHANGE;
+		break;
+	default:
+		return NOTIFY_OK;
+	}
+
+	/*
+	 * Wait a bit before reading ac/usb line status and setting charger,
+	 * because ac/usb status readings may lag from irq.
+	 */
+	mod_timer(&charger_timer,
+		  jiffies + msecs_to_jiffies(pdata->wait_for_status));
+
+	return NOTIFY_OK;
 }
 #endif
 
@@ -282,6 +317,14 @@ static int pda_power_probe(struct platform_device *pdev)
 		ret = PTR_ERR(ac_draw);
 	}
 
+	transceiver = otg_get_transceiver();
+	if (transceiver && !pdata->is_usb_online) {
+		pdata->is_usb_online = otg_is_usb_online;
+	}
+	if (transceiver && !pdata->is_ac_online) {
+		pdata->is_ac_online = otg_is_ac_online;
+	}
+
 	if (pdata->is_ac_online) {
 		ret = power_supply_register(&pdev->dev, &pda_psy_ac);
 		if (ret) {
@@ -303,13 +346,6 @@ static int pda_power_probe(struct platform_device *pdev)
 		}
 	}
 
-#ifdef CONFIG_USB_OTG_UTILS
-	transceiver = otg_get_transceiver();
-	if (transceiver && !pdata->is_usb_online) {
-		pdata->is_usb_online = otg_is_usb_online;
-	}
-#endif
-
 	if (pdata->is_usb_online) {
 		ret = power_supply_register(&pdev->dev, &pda_psy_usb);
 		if (ret) {
@@ -331,6 +367,16 @@ static int pda_power_probe(struct platform_device *pdev)
 		}
 	}
 
+	if (transceiver && pdata->use_otg_notifier) {
+		otg_nb.notifier_call = otg_handle_notification;
+		ret = otg_register_notifier(transceiver, &otg_nb);
+		if (ret) {
+			dev_err(dev, "failure to register otg notifier\n");
+			goto otg_reg_notifier_failed;
+		}
+		polling = 0;
+	}
+
 	if (polling) {
 		dev_dbg(dev, "will poll for status\n");
 		setup_timer(&polling_timer, polling_timer_func, 0);
@@ -343,16 +389,17 @@ static int pda_power_probe(struct platform_device *pdev)
 
 	return 0;
 
+otg_reg_notifier_failed:
+	if (pdata->is_usb_online && usb_irq)
+		free_irq(usb_irq->start, &pda_psy_usb);
 usb_irq_failed:
 	if (pdata->is_usb_online)
 		power_supply_unregister(&pda_psy_usb);
 usb_supply_failed:
 	if (pdata->is_ac_online && ac_irq)
 		free_irq(ac_irq->start, &pda_psy_ac);
-#ifdef CONFIG_USB_OTG_UTILS
 	if (transceiver)
 		otg_put_transceiver(transceiver);
-#endif
 ac_irq_failed:
 	if (pdata->is_ac_online)
 		power_supply_unregister(&pda_psy_ac);
diff --git a/drivers/power/power_supply_core.c b/drivers/power/power_supply_core.c
index 329b46b..03810ce 100644
--- a/drivers/power/power_supply_core.c
+++ b/drivers/power/power_supply_core.c
@@ -41,23 +41,40 @@ static int __power_supply_changed_work(struct device *dev, void *data)
 
 static void power_supply_changed_work(struct work_struct *work)
 {
+	unsigned long flags;
 	struct power_supply *psy = container_of(work, struct power_supply,
 						changed_work);
 
 	dev_dbg(psy->dev, "%s\n", __func__);
 
-	class_for_each_device(power_supply_class, NULL, psy,
-			      __power_supply_changed_work);
+	spin_lock_irqsave(&psy->changed_lock, flags);
+	if (psy->changed) {
+		psy->changed = false;
+		spin_unlock_irqrestore(&psy->changed_lock, flags);
 
-	power_supply_update_leds(psy);
+		class_for_each_device(power_supply_class, NULL, psy,
+				      __power_supply_changed_work);
 
-	kobject_uevent(&psy->dev->kobj, KOBJ_CHANGE);
+		power_supply_update_leds(psy);
+
+		kobject_uevent(&psy->dev->kobj, KOBJ_CHANGE);
+		spin_lock_irqsave(&psy->changed_lock, flags);
+	}
+	if (!psy->changed)
+		wake_unlock(&psy->work_wake_lock);
+	spin_unlock_irqrestore(&psy->changed_lock, flags);
 }
 
 void power_supply_changed(struct power_supply *psy)
 {
+	unsigned long flags;
+
 	dev_dbg(psy->dev, "%s\n", __func__);
 
+	spin_lock_irqsave(&psy->changed_lock, flags);
+	psy->changed = true;
+	wake_lock(&psy->work_wake_lock);
+	spin_unlock_irqrestore(&psy->changed_lock, flags);
 	schedule_work(&psy->changed_work);
 }
 EXPORT_SYMBOL_GPL(power_supply_changed);
@@ -181,6 +198,9 @@ int power_supply_register(struct device *parent, struct power_supply *psy)
 	if (rc)
 		goto device_add_failed;
 
+	spin_lock_init(&psy->changed_lock);
+	wake_lock_init(&psy->work_wake_lock, WAKE_LOCK_SUSPEND, "power-supply");
+
 	rc = power_supply_create_triggers(psy);
 	if (rc)
 		goto create_triggers_failed;
@@ -190,6 +210,7 @@ int power_supply_register(struct device *parent, struct power_supply *psy)
 	goto success;
 
 create_triggers_failed:
+	wake_lock_destroy(&psy->work_wake_lock);
 	device_del(dev);
 kobject_set_name_failed:
 device_add_failed:
@@ -203,6 +224,7 @@ void power_supply_unregister(struct power_supply *psy)
 {
 	cancel_work_sync(&psy->changed_work);
 	power_supply_remove_triggers(psy);
+	wake_lock_destroy(&psy->work_wake_lock);
 	device_unregister(psy->dev);
 }
 EXPORT_SYMBOL_GPL(power_supply_unregister);
diff --git a/drivers/power/s3c_adc_battery.c b/drivers/power/s3c_adc_battery.c
index d36c289..9f869c1 100644
--- a/drivers/power/s3c_adc_battery.c
+++ b/drivers/power/s3c_adc_battery.c
@@ -1,11 +1,13 @@
 /*
- *	iPAQ h1930/h1940/rx1950 battery controller driver
- *	Copyright (c) Vasily Khoruzhick
- *	Based on h1940_battery.c by Arnaud Patard
+ * linux/drivers/power/s3c_adc_battery.c
  *
- * This file is subject to the terms and conditions of the GNU General Public
- * License.  See the file COPYING in the main directory of this archive for
- * more details.
+ * Battery measurement code for samsung smdk platform.
+ *
+ * Copyright (C) 2011 Samsung Electronics.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
  *
  */
 
@@ -266,7 +268,7 @@ static irqreturn_t s3c_adc_bat_charged(int irq, void *dev_id)
 	return IRQ_HANDLED;
 }
 
-static int __init s3c_adc_bat_probe(struct platform_device *pdev)
+static int __devinit s3c_adc_bat_probe(struct platform_device *pdev)
 {
 	struct s3c_adc_client	*client;
 	struct s3c_adc_bat_pdata *pdata = pdev->dev.platform_data;
diff --git a/drivers/power/samsung_fake_battery.c b/drivers/power/samsung_fake_battery.c
new file mode 100644
index 0000000..d64ee99
--- /dev/null
+++ b/drivers/power/samsung_fake_battery.c
@@ -0,0 +1,546 @@
+/*
+ * linux/drivers/power/samsung_fake_battery.c
+ *
+ * Battery measurement code for samsung smdk platform.
+ *
+ * Copyright (C) 2011 Samsung Electronics.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ */
+
+#include <linux/kernel.h>
+#include <linux/device.h>
+#include <linux/module.h>
+#include <linux/power_supply.h>
+#include <linux/delay.h>
+#include <linux/spinlock.h>
+#include <linux/interrupt.h>
+#include <linux/gpio.h>
+#include <linux/platform_device.h>
+#include <linux/timer.h>
+#include <linux/jiffies.h>
+#include <linux/irq.h>
+#include <linux/wakelock.h>
+#include <asm/mach-types.h>
+#include <mach/hardware.h>
+#include <plat/gpio-cfg.h>
+
+#define FAKE_BAT_LEVEL	80
+
+static struct wake_lock vbus_wake_lock;
+
+/* Prototypes */
+static ssize_t samsung_fake_bat_show_property(struct device *dev,
+				struct device_attribute *attr,
+				char *buf);
+static ssize_t samsung_fake_bat_store_property(struct device *dev,
+				struct device_attribute *attr,
+				const char *buf, size_t count);
+
+static struct device *dev;
+static int samsung_fake_battery_initial;
+
+static char *status_text[] = {
+	[POWER_SUPPLY_STATUS_UNKNOWN] =		"Unknown",
+	[POWER_SUPPLY_STATUS_CHARGING] =	"Charging",
+	[POWER_SUPPLY_STATUS_DISCHARGING] =	"Discharging",
+	[POWER_SUPPLY_STATUS_NOT_CHARGING] =	"Not Charging",
+	[POWER_SUPPLY_STATUS_FULL] =		"Full",
+};
+
+typedef enum {
+	CHARGER_BATTERY = 0,
+	CHARGER_USB,
+	CHARGER_AC,
+	CHARGER_DISCHARGE
+} charger_type_t;
+
+struct battery_info {
+	u32 batt_id;		/* Battery ID from ADC */
+	u32 batt_vol;		/* Battery voltage from ADC */
+	u32 batt_vol_adc;	/* Battery ADC value */
+	u32 batt_vol_adc_cal;	/* Battery ADC value (calibrated)*/
+	u32 batt_temp;		/* Battery Temperature (C) from ADC */
+	u32 batt_temp_adc;	/* Battery Temperature ADC value */
+	u32 batt_temp_adc_cal;	/* Battery Temperature ADC value (calibrated) */
+	u32 batt_current;	/* Battery current from ADC */
+	u32 level;		/* formula */
+	u32 charging_source;	/* 0: no cable, 1:usb, 2:AC */
+	u32 charging_enabled;	/* 0: Disable, 1: Enable */
+	u32 batt_health;	/* Battery Health (Authority) */
+	u32 batt_is_full;	/* 0 : Not full 1: Full */
+};
+
+/* lock to protect the battery info */
+static DEFINE_MUTEX(work_lock);
+
+struct samsung_fake_battery_info {
+	int present;
+	int polling;
+	unsigned long polling_interval;
+
+	struct battery_info bat_info;
+};
+static struct samsung_fake_battery_info samsung_fake_bat_info;
+
+static int samsung_get_bat_level(struct power_supply *bat_ps)
+{
+	return FAKE_BAT_LEVEL;
+}
+
+static int samsung_get_bat_vol(struct power_supply *bat_ps)
+{
+	int bat_vol = 0;
+
+	return bat_vol;
+}
+
+static u32 samsung_get_bat_health(void)
+{
+	return samsung_fake_bat_info.bat_info.batt_health;
+}
+
+static int samsung_get_bat_temp(struct power_supply *bat_ps)
+{
+	int temp = 0;
+
+	return temp;
+}
+
+static int samsung_fake_bat_get_charging_status(void)
+{
+	charger_type_t charger = CHARGER_BATTERY;
+	int ret = 0;
+
+	charger = samsung_fake_bat_info.bat_info.charging_source;
+
+	switch (charger) {
+	case CHARGER_BATTERY:
+		ret = POWER_SUPPLY_STATUS_NOT_CHARGING;
+		break;
+	case CHARGER_USB:
+	case CHARGER_AC:
+		if (samsung_fake_bat_info.bat_info.level == 100 &&
+		    samsung_fake_bat_info.bat_info.batt_is_full)
+			ret = POWER_SUPPLY_STATUS_FULL;
+		else
+			ret = POWER_SUPPLY_STATUS_CHARGING;
+		break;
+	case CHARGER_DISCHARGE:
+		ret = POWER_SUPPLY_STATUS_DISCHARGING;
+		break;
+	default:
+		ret = POWER_SUPPLY_STATUS_UNKNOWN;
+	}
+	dev_dbg(dev, "%s : %s\n", __func__, status_text[ret]);
+
+	return ret;
+}
+
+static int samsung_fake_bat_get_property(struct power_supply *bat_ps,
+					 enum power_supply_property psp,
+					 union power_supply_propval *val)
+{
+	dev_dbg(bat_ps->dev, "%s : psp = %d\n", __func__, psp);
+
+	switch (psp) {
+	case POWER_SUPPLY_PROP_STATUS:
+		val->intval = samsung_fake_bat_get_charging_status();
+		break;
+	case POWER_SUPPLY_PROP_HEALTH:
+		val->intval = samsung_get_bat_health();
+		break;
+	case POWER_SUPPLY_PROP_PRESENT:
+		val->intval = samsung_fake_bat_info.present;
+		break;
+	case POWER_SUPPLY_PROP_TECHNOLOGY:
+		val->intval = POWER_SUPPLY_TECHNOLOGY_LION;
+		break;
+	case POWER_SUPPLY_PROP_CAPACITY:
+		val->intval = samsung_fake_bat_info.bat_info.level;
+		dev_dbg(dev, "%s : level = %d\n", __func__,
+				val->intval);
+		break;
+	case POWER_SUPPLY_PROP_TEMP:
+		val->intval = samsung_fake_bat_info.bat_info.batt_temp;
+		dev_dbg(bat_ps->dev, "%s : temp = %d\n", __func__,
+				val->intval);
+		break;
+	default:
+		return -EINVAL;
+	}
+	return 0;
+}
+
+static int samsung_power_get_property(struct power_supply *bat_ps,
+				enum power_supply_property psp,
+				union power_supply_propval *val)
+{
+	charger_type_t charger;
+
+	dev_dbg(bat_ps->dev, "%s : psp = %d\n", __func__, psp);
+
+	charger = samsung_fake_bat_info.bat_info.charging_source;
+
+	switch (psp) {
+	case POWER_SUPPLY_PROP_ONLINE:
+		if (bat_ps->type == POWER_SUPPLY_TYPE_MAINS)
+			val->intval = (charger == CHARGER_AC ? 1 : 0);
+		else if (bat_ps->type == POWER_SUPPLY_TYPE_USB)
+			val->intval = (charger == CHARGER_USB ? 1 : 0);
+		else
+			val->intval = 0;
+		break;
+	default:
+		return -EINVAL;
+	}
+
+	return 0;
+}
+
+#define SAMSUNG_FAKE_BAT_ATTR(_name)			\
+{							\
+	.attr = { .name = #_name,},			\
+	.show = samsung_fake_bat_show_property,		\
+	.store = samsung_fake_bat_store_property,	\
+}
+
+static struct device_attribute samsung_fake_battery_attrs[] = {
+	SAMSUNG_FAKE_BAT_ATTR(batt_vol),
+	SAMSUNG_FAKE_BAT_ATTR(batt_vol_adc),
+	SAMSUNG_FAKE_BAT_ATTR(batt_vol_adc_cal),
+	SAMSUNG_FAKE_BAT_ATTR(batt_temp),
+	SAMSUNG_FAKE_BAT_ATTR(batt_temp_adc),
+	SAMSUNG_FAKE_BAT_ATTR(batt_temp_adc_cal),
+};
+
+enum {
+	BATT_VOL = 0,
+	BATT_VOL_ADC,
+	BATT_VOL_ADC_CAL,
+	BATT_TEMP,
+	BATT_TEMP_ADC,
+	BATT_TEMP_ADC_CAL,
+};
+
+static int samsung_fake_bat_create_attrs(struct device * dev)
+{
+	int i, rc;
+
+	for (i = 0; i < ARRAY_SIZE(samsung_fake_battery_attrs); i++) {
+		rc = device_create_file(dev, &samsung_fake_battery_attrs[i]);
+		if (rc)
+		goto attrs_failed;
+	}
+	goto succeed;
+
+attrs_failed:
+	while (i--)
+	device_remove_file(dev, &samsung_fake_battery_attrs[i]);
+succeed:
+	return rc;
+}
+
+static ssize_t samsung_fake_bat_show_property(struct device *dev,
+				struct device_attribute *attr,
+				char *buf)
+{
+	int i = 0;
+	const ptrdiff_t off = attr - samsung_fake_battery_attrs;
+
+	switch (off) {
+	case BATT_VOL:
+		i += scnprintf(buf + i, PAGE_SIZE - i, "%d\n",
+			samsung_fake_bat_info.bat_info.batt_vol);
+	break;
+	case BATT_VOL_ADC:
+		i += scnprintf(buf + i, PAGE_SIZE - i, "%d\n",
+			samsung_fake_bat_info.bat_info.batt_vol_adc);
+		break;
+	case BATT_VOL_ADC_CAL:
+		i += scnprintf(buf + i, PAGE_SIZE - i, "%d\n",
+			samsung_fake_bat_info.bat_info.batt_vol_adc_cal);
+		break;
+	case BATT_TEMP:
+		i += scnprintf(buf + i, PAGE_SIZE - i, "%d\n",
+			samsung_fake_bat_info.bat_info.batt_temp);
+		break;
+	case BATT_TEMP_ADC:
+		i += scnprintf(buf + i, PAGE_SIZE - i, "%d\n",
+			samsung_fake_bat_info.bat_info.batt_temp_adc);
+		break;
+	case BATT_TEMP_ADC_CAL:
+		i += scnprintf(buf + i, PAGE_SIZE - i, "%d\n",
+			samsung_fake_bat_info.bat_info.batt_temp_adc_cal);
+		break;
+	default:
+		i = -EINVAL;
+	}
+
+	return i;
+}
+
+static ssize_t samsung_fake_bat_store_property(struct device *dev,
+				struct device_attribute *attr,
+				const char *buf, size_t count)
+{
+	int x = 0;
+	int ret = 0;
+	const ptrdiff_t off = attr - samsung_fake_battery_attrs;
+
+	switch (off) {
+	case BATT_VOL_ADC_CAL:
+		if (sscanf(buf, "%d\n", &x) == 1) {
+			samsung_fake_bat_info.bat_info.batt_vol_adc_cal = x;
+			ret = count;
+		}
+		dev_info(dev, "%s : batt_vol_adc_cal = %d\n", __func__, x);
+		break;
+	case BATT_TEMP_ADC_CAL:
+		if (sscanf(buf, "%d\n", &x) == 1) {
+			samsung_fake_bat_info.bat_info.batt_temp_adc_cal = x;
+			ret = count;
+		}
+		dev_info(dev, "%s : batt_temp_adc_cal = %d\n", __func__, x);
+		break;
+	default:
+		ret = -EINVAL;
+	}
+
+	return ret;
+}
+
+static enum power_supply_property samsung_fake_battery_properties[] = {
+	POWER_SUPPLY_PROP_STATUS,
+	POWER_SUPPLY_PROP_HEALTH,
+	POWER_SUPPLY_PROP_PRESENT,
+	POWER_SUPPLY_PROP_TECHNOLOGY,
+	POWER_SUPPLY_PROP_CAPACITY,
+};
+
+static enum power_supply_property samsung_power_properties[] = {
+	POWER_SUPPLY_PROP_ONLINE,
+};
+
+static char *supply_list[] = {
+	"battery",
+};
+
+static struct power_supply samsung_power_supplies[] = {
+	{
+		.name = "battery",
+		.type = POWER_SUPPLY_TYPE_BATTERY,
+		.properties = samsung_fake_battery_properties,
+		.num_properties = ARRAY_SIZE(samsung_fake_battery_properties),
+		.get_property = samsung_fake_bat_get_property,
+	}, {
+		.name = "usb",
+		.type = POWER_SUPPLY_TYPE_USB,
+		.supplied_to = supply_list,
+		.num_supplicants = ARRAY_SIZE(supply_list),
+		.properties = samsung_power_properties,
+		.num_properties = ARRAY_SIZE(samsung_power_properties),
+		.get_property = samsung_power_get_property,
+	}, {
+		.name = "ac",
+		.type = POWER_SUPPLY_TYPE_MAINS,
+		.supplied_to = supply_list,
+		.num_supplicants = ARRAY_SIZE(supply_list),
+		.properties = samsung_power_properties,
+		.num_properties = ARRAY_SIZE(samsung_power_properties),
+		.get_property = samsung_power_get_property,
+	},
+};
+
+static int samsung_cable_status_update(int status)
+{
+	int ret = 0;
+	charger_type_t source = CHARGER_BATTERY;
+
+	dev_dbg(dev, "%s\n", __func__);
+
+	if (!samsung_fake_battery_initial)
+		return -EPERM;
+
+	switch (status) {
+	case CHARGER_BATTERY:
+		dev_dbg(dev, "%s : cable NOT PRESENT\n", __func__);
+		samsung_fake_bat_info.bat_info.charging_source = CHARGER_BATTERY;
+		break;
+	case CHARGER_USB:
+		dev_dbg(dev, "%s : cable USB\n", __func__);
+		samsung_fake_bat_info.bat_info.charging_source = CHARGER_USB;
+		break;
+	case CHARGER_AC:
+		dev_dbg(dev, "%s : cable AC\n", __func__);
+		samsung_fake_bat_info.bat_info.charging_source = CHARGER_AC;
+		break;
+	case CHARGER_DISCHARGE:
+		dev_dbg(dev, "%s : Discharge\n", __func__);
+		samsung_fake_bat_info.bat_info.charging_source = CHARGER_DISCHARGE;
+		break;
+	default:
+		dev_err(dev, "%s : Nat supported status\n", __func__);
+		ret = -EINVAL;
+	}
+	source = samsung_fake_bat_info.bat_info.charging_source;
+
+	if (source == CHARGER_USB || source == CHARGER_AC)
+		wake_lock(&vbus_wake_lock);
+	else
+		wake_lock_timeout(&vbus_wake_lock, HZ / 2);
+
+	/* if the power source changes, all power supplies may change state */
+	power_supply_changed(&samsung_power_supplies[CHARGER_BATTERY]);
+
+	dev_dbg(dev, "%s : call power_supply_changed\n", __func__);
+	return ret;
+}
+
+static void samsung_fake_bat_status_update(struct power_supply *bat_ps)
+{
+	int old_level, old_temp, old_is_full;
+	dev_dbg(dev, "%s ++\n", __func__);
+
+	if (!samsung_fake_battery_initial)
+		return;
+
+	mutex_lock(&work_lock);
+
+	old_temp = samsung_fake_bat_info.bat_info.batt_temp;
+	old_level = samsung_fake_bat_info.bat_info.level;
+	old_is_full = samsung_fake_bat_info.bat_info.batt_is_full;
+	samsung_fake_bat_info.bat_info.batt_temp = samsung_get_bat_temp(bat_ps);
+	samsung_fake_bat_info.bat_info.level = samsung_get_bat_level(bat_ps);
+	samsung_fake_bat_info.bat_info.batt_vol = samsung_get_bat_vol(bat_ps);
+
+	if (old_level != samsung_fake_bat_info.bat_info.level ||
+	    old_temp != samsung_fake_bat_info.bat_info.batt_temp ||
+	    old_is_full != samsung_fake_bat_info.bat_info.batt_is_full) {
+		power_supply_changed(bat_ps);
+		dev_dbg(dev, "%s : call power_supply_changed\n", __func__);
+	}
+
+	mutex_unlock(&work_lock);
+	dev_dbg(dev, "%s --\n", __func__);
+}
+
+void samsung_cable_check_status(int flag)
+{
+    charger_type_t status = 0;
+
+    if (flag == 0)
+	status = CHARGER_BATTERY;
+    else
+	status = CHARGER_USB;
+
+    samsung_cable_status_update(status);
+}
+EXPORT_SYMBOL(samsung_cable_check_status);
+
+#ifdef CONFIG_PM
+static int samsung_fake_bat_suspend(struct device *dev)
+{
+	return 0;
+}
+
+static void samsung_fake_bat_resume(struct device *dev)
+{
+}
+#else
+#define samsung_fake_bat_suspend NULL
+#define samsung_fake_bat_resume NULL
+#endif /* CONFIG_PM */
+
+static int __devinit samsung_fake_bat_probe(struct platform_device *pdev)
+{
+	int i;
+	int ret = 0;
+
+	dev = &pdev->dev;
+	dev_info(dev, "%s\n", __func__);
+
+	samsung_fake_bat_info.present = 1;
+
+	samsung_fake_bat_info.bat_info.batt_id = 0;
+	samsung_fake_bat_info.bat_info.batt_vol = 0;
+	samsung_fake_bat_info.bat_info.batt_vol_adc = 0;
+	samsung_fake_bat_info.bat_info.batt_vol_adc_cal = 0;
+	samsung_fake_bat_info.bat_info.batt_temp = 0;
+	samsung_fake_bat_info.bat_info.batt_temp_adc = 0;
+	samsung_fake_bat_info.bat_info.batt_temp_adc_cal = 0;
+	samsung_fake_bat_info.bat_info.batt_current = 0;
+	samsung_fake_bat_info.bat_info.level = 0;
+	samsung_fake_bat_info.bat_info.charging_source = CHARGER_BATTERY;
+	samsung_fake_bat_info.bat_info.charging_enabled = 0;
+	samsung_fake_bat_info.bat_info.batt_health = POWER_SUPPLY_HEALTH_GOOD;
+
+	/* init power supplier framework */
+	for (i = 0; i < ARRAY_SIZE(samsung_power_supplies); i++) {
+		ret = power_supply_register(&pdev->dev,
+				&samsung_power_supplies[i]);
+		if (ret) {
+			dev_err(dev, "Failed to register"
+					"power supply %d,%d\n", i, ret);
+			goto __end__;
+		}
+	}
+
+	/* create sec detail attributes */
+	samsung_fake_bat_create_attrs(samsung_power_supplies[CHARGER_BATTERY].dev);
+
+	samsung_fake_battery_initial = 1;
+
+	samsung_fake_bat_status_update(
+			&samsung_power_supplies[CHARGER_BATTERY]);
+
+__end__:
+	return ret;
+}
+
+static int __devexit samsung_fake_bat_remove(struct platform_device *pdev)
+{
+	int i;
+
+	for (i = 0; i < ARRAY_SIZE(samsung_power_supplies); i++)
+		power_supply_unregister(&samsung_power_supplies[i]);
+
+	return 0;
+}
+
+static const struct dev_pm_ops samsung_fake_bat_pm_ops = {
+	.prepare	= samsung_fake_bat_suspend,
+	.complete	= samsung_fake_bat_resume,
+};
+
+static struct platform_driver samsung_fake_bat_driver = {
+	.driver = {
+		.name	= "samsung-fake-battery",
+		.owner	= THIS_MODULE,
+		.pm	= &samsung_fake_bat_pm_ops,
+	},
+	.probe		= samsung_fake_bat_probe,
+	.remove		= __devexit_p(samsung_fake_bat_remove),
+};
+
+static int __init samsung_fake_bat_init(void)
+{
+	wake_lock_init(&vbus_wake_lock, WAKE_LOCK_SUSPEND, "vbus_present");
+
+	return platform_driver_register(&samsung_fake_bat_driver);
+}
+
+static void __exit samsung_fake_bat_exit(void)
+{
+	platform_driver_unregister(&samsung_fake_bat_driver);
+}
+
+module_init(samsung_fake_bat_init);
+module_exit(samsung_fake_bat_exit);
+
+MODULE_AUTHOR("HuiSung Kang <hs1218.kang@samsung.com>");
+MODULE_DESCRIPTION("SAMSUNG Fake battery driver for SMDK Board");
+MODULE_LICENSE("GPL");
diff --git a/drivers/power/sec_battery_px.c b/drivers/power/sec_battery_px.c
new file mode 100644
index 0000000..0b5d8d4
--- /dev/null
+++ b/drivers/power/sec_battery_px.c
@@ -0,0 +1,2148 @@
+/*
+ *  sec_battery.c
+ *  charger systems for lithium-ion (Li+) batteries
+ *
+ *  Copyright (C) 2010 Samsung Electronics
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/vmalloc.h>
+#include <linux/fs.h>
+#include <linux/mm.h>
+#include <linux/slab.h>
+#include <linux/power_supply.h>
+#include <linux/delay.h>
+#include <linux/spinlock.h>
+#include <linux/interrupt.h>
+#include <linux/platform_device.h>
+#include <linux/timer.h>
+#include <linux/jiffies.h>
+#include <linux/irq.h>
+#include <linux/wakelock.h>
+#include <linux/android_alarm.h>
+#include <asm/mach-types.h>
+#include <mach/hardware.h>
+#include <linux/earlysuspend.h>
+#include <linux/io.h>
+#include <mach/gpio.h>
+#include <linux/power/sec_battery_px.h>
+#include <linux/power/max17042_fuelgauge_px.h>
+#include <linux/mfd/max8997.h>
+
+#include <plat/adc.h>
+#include <mach/usb_switch.h>
+
+#define FAST_POLL	40	/* 40 sec */
+#define SLOW_POLL	(30*60)	/* 30 min */
+
+/* SIOP */
+#define CHARGING_CURRENT_HIGH_LOW_STANDARD	450
+#define CHARGING_CURRENT_USB			500
+#define SIOP_ACTIVE_CHARGE_CURRENT		450
+#define SIOP_DEACTIVE_CHARGE_CURRENT		1500
+
+enum {
+	SIOP_DEACTIVE = 0,
+	SIOP_ACTIVE,
+};
+
+#if defined(CONFIG_MACH_P2)
+#define P2_CHARGING_FEATURE_02	/* SMB136 + MAX17042, Cable detect by TA_nCon */
+#endif
+
+#if defined(CONFIG_MACH_P4NOTE)
+#define P4_CHARGING_FEATURE_01	/* SMB347 + MAX17042, use TA_nCON */
+#endif
+
+#if defined(CONFIG_MACH_P8) || defined(CONFIG_MACH_P8LTE)
+#define P8_CHARGING_FEATURE_01   /* MAX8903 + MAX17042, use TA_nCON */
+#endif
+
+static char *supply_list[] = {
+	"battery",
+};
+
+static enum power_supply_property sec_battery_properties[] = {
+	POWER_SUPPLY_PROP_STATUS,
+	POWER_SUPPLY_PROP_HEALTH,
+	POWER_SUPPLY_PROP_PRESENT,
+	POWER_SUPPLY_PROP_TECHNOLOGY,
+	POWER_SUPPLY_PROP_CAPACITY,
+};
+
+static enum power_supply_property sec_power_properties[] = {
+	POWER_SUPPLY_PROP_ONLINE,
+};
+
+struct battery_info {
+	u32 batt_id;		/* Battery ID from ADC */
+	s32 batt_vol;		/* Battery voltage from ADC */
+	s32 batt_temp;		/* Battery Temperature (C) from ADC */
+	s32 batt_current;	/* Battery current from ADC */
+	u32 level;		/* formula */
+	u32 charging_source;	/* 0: no cable, 1:usb, 2:AC */
+	u32 charging_enabled;	/* 0: Disable, 1: Enable */
+	u32 charging_current;	/* Charging current */
+	u32 batt_full_count;	/* full checked count */
+	u32 batt_health;	/* Battery Health (Authority) */
+	u32 batt_is_full;       /* 0 : Not full 1: Full */
+	u32 batt_is_recharging; /* 0 : Not recharging 1: Recharging */
+	u32 batt_improper_ta;	/* 1: improper ta */
+	u32 abstimer_is_active;	/* 0 : Not active 1: Active */
+	u32 siop_activated;	/* 0 : Not active 1: Active */
+};
+
+struct battery_data {
+	struct device		*dev;
+	struct sec_battery_platform_data *pdata;
+	struct battery_info	info;
+	struct power_supply	psy_battery;
+	struct power_supply	psy_usb;
+	struct power_supply	psy_ac;
+	struct workqueue_struct	*sec_TA_workqueue;
+	struct work_struct	battery_work;
+	struct work_struct	cable_work;
+	struct delayed_work	TA_work;
+	struct delayed_work	fuelgauge_work;
+	struct delayed_work	fuelgauge_recovery_work;
+	struct delayed_work	fullcharging_work;
+	struct delayed_work	full_comp_work;
+	struct alarm		alarm;
+	struct mutex		work_lock;
+	struct wake_lock	vbus_wake_lock;
+	struct wake_lock	cable_wake_lock;
+	struct wake_lock	work_wake_lock;
+	struct wake_lock	fullcharge_wake_lock;
+	struct s3c_adc_client *padc;
+
+#ifdef __TEST_DEVICE_DRIVER__
+	struct wake_lock	wake_lock_for_dev;
+#endif /* __TEST_DEVICE_DRIVER__ */
+	enum charger_type	current_cable_status;
+	enum charger_type	previous_cable_status;
+	int		present;
+	unsigned int	device_state;
+	unsigned int	charging_mode_booting;
+	int		sec_battery_initial;
+	int		low_batt_boot_flag;
+	u32		full_charge_comp_recharge_info;
+	unsigned long	charging_start_time;
+	int		connect_irq;
+	int		charging_irq;
+	bool		slow_poll;
+	ktime_t		last_poll;
+	int fg_skip;
+	int fg_skip_cnt;
+	int fg_chk_cnt;
+	int recharging_cnt;
+	int previous_charging_status;
+	int full_check_flag;
+	bool is_first_check;
+	/* 0:Default, 1:Only charger, 2:Only PMIC */
+	int cable_detect_source;
+	int pmic_cable_state;
+	bool is_low_batt_alarm;
+};
+
+struct battery_data *debug_batterydata;
+
+static void sec_cable_charging(struct battery_data *battery);
+static void sec_set_chg_en(struct battery_data *battery, int enable);
+static void sec_cable_changed(struct battery_data *battery);
+static ssize_t sec_bat_show_property(struct device *dev,
+			struct device_attribute *attr,
+			char *buf);
+static ssize_t sec_bat_store(struct device *dev,
+			struct device_attribute *attr,
+			const char *buf, size_t count);
+
+#ifdef __TEST_DEVICE_DRIVER__
+static ssize_t sec_batt_test_show_property(struct device *dev,
+						struct device_attribute *attr,
+						char *buf);
+static ssize_t sec_batt_test_store(struct device *dev,
+						struct device_attribute *attr,
+						const char *buf, size_t count);
+
+static int bat_temp_force_state;
+#endif /* __TEST_DEVICE_DRIVER__ */
+
+static bool check_UV_charging_case(void);
+static void sec_bat_status_update(struct power_supply *bat_ps);
+
+static int get_cached_charging_status(struct battery_data *battery)
+{
+	struct power_supply *psy = power_supply_get_by_name("max8997-charger");
+	union power_supply_propval value;
+	u32 ta_con = 0;
+
+	if (!psy) {
+		pr_err("%s: fail to get max8997-charger ps\n", __func__);
+		return 0;
+	}
+
+	if (psy->get_property) {
+		psy->get_property(psy, POWER_SUPPLY_PROP_STATUS, &value);
+		if (value.intval == POWER_SUPPLY_STATUS_CHARGING)
+			ta_con = 1;
+	}
+
+	pr_info("PMIC detect : %s\n", ta_con ? "TA connected" :
+						"TA NOT connected");
+	return ta_con;
+}
+
+static int check_ta_conn(struct battery_data *battery)
+{
+	u32 value;
+
+	if (battery->cable_detect_source == 2) {
+		value = get_cached_charging_status(battery);
+		pr_info("Cable detect from PMIC instead of TA_nConnected(%d)\n",
+				value);
+		return value;
+	}
+	value = gpio_get_value(battery->pdata->charger.connect_line);
+
+#if defined(P4_CHARGING_FEATURE_01)
+#if defined(CONFIG_MACH_P4NOTE)
+	value = !value;
+#else
+	/* P4C H/W rev0.2, 0.3, 0.4 : High active */
+	if ((system_rev >= 2) && (system_rev <= 5))
+		value = !value;
+#endif
+#endif
+	pr_debug("Charger detect : %s\n", value ? "TA NOT connected" :
+							"TA connected");
+	return !value;
+}
+
+#ifdef CONFIG_SAMSUNG_LPM_MODE
+static void lpm_mode_check(struct battery_data *battery)
+{
+	battery->charging_mode_booting = \
+				battery->pdata->check_lp_charging_boot();
+	pr_info("%s : charging_mode_booting(%d)\n", __func__,
+			battery->charging_mode_booting);
+}
+#endif
+
+#if defined(P4_CHARGING_FEATURE_01) || defined(P8_CHARGING_FEATURE_01)
+#define CHARGING_CURRENT_HIGH	1500
+#define CHARGING_CURRENT_LOW	CHARGING_CURRENT_USB
+static void sec_set_charging(struct battery_data *battery, int charger_type)
+{
+	switch (charger_type) {
+	case CHARGER_AC:
+		gpio_set_value(battery->pdata->charger.currentset_line, 1);
+		battery->info.charging_current = CHARGING_CURRENT_HIGH;
+		break;
+	default:
+		/* For P8 Audio station, the charging current driven by TA
+		path is not as per the required spec hence we drive the
+		input charging current by USB path for Sound Station.*/
+		gpio_set_value(battery->pdata->charger.currentset_line, 0);
+		battery->info.charging_current = CHARGING_CURRENT_LOW;
+		break;
+	}
+	pr_info("%s: Set charging current as %dmA.\n", __func__,
+			battery->info.charging_current);
+}
+#endif
+
+static void sec_battery_alarm(struct alarm *alarm)
+{
+	struct battery_data *battery =
+			container_of(alarm, struct battery_data, alarm);
+
+	pr_debug("%s : sec_battery_alarm.....\n", __func__);
+	wake_lock(&battery->work_wake_lock);
+	schedule_work(&battery->battery_work);
+}
+
+static void sec_program_alarm(struct battery_data *battery, int seconds)
+{
+	ktime_t low_interval = ktime_set(seconds - 10, 0);
+	ktime_t slack = ktime_set(20, 0);
+	ktime_t next;
+
+	pr_debug("%s : sec_program_alarm.....\n", __func__);
+	next = ktime_add(battery->last_poll, low_interval);
+	alarm_start_range(&battery->alarm, next, ktime_add(next, slack));
+}
+
+static
+enum charger_type sec_get_dedicted_charger_type(struct battery_data *battery)
+{
+	/* N.B. If check_ta_conn() is true something valid is
+	connceted to the device for charging.
+	By default this something is considered to be USB.*/
+	enum charger_type result = CHARGER_USB;
+	int avg_vol = 0;
+	int adc_1, adc_2;
+	int vol_1, vol_2;
+	int accessory_line;
+
+	mutex_lock(&battery->work_lock);
+
+	/* ADC check margin (300~500ms) */
+	msleep(150);
+
+	usb_switch_lock();
+	usb_switch_set_path(USB_PATH_ADCCHECK);
+
+#if defined(CONFIG_STMPE811_ADC)
+	vol_1 = stmpe811_get_adc_data(6);
+	vol_2 = stmpe811_get_adc_data(6);
+#else
+	/* ADC values Update Margin */
+	msleep(30);
+
+	adc_1 = s3c_adc_read(battery->padc, 5);
+	adc_2 = s3c_adc_read(battery->padc, 5);
+
+	vol_1 = (adc_1 * 3300) / 4095;
+	vol_2 = (adc_2 * 3300) / 4095;
+#endif
+	avg_vol = (vol_1 + vol_2)/2;
+
+	if ((avg_vol > 800) && (avg_vol < 1800)) {
+#if defined(P4_CHARGING_FEATURE_01)
+		accessory_line = gpio_get_value(
+			battery->pdata->charger.accessory_line);
+		pr_info("%s: accessory line(%d)\n", __func__, accessory_line);
+
+		if (accessory_line == 0)	/* HDMI dock cable connected*/
+			result = CHARGER_DOCK;
+		else
+			result = CHARGER_AC;
+#else
+		result = CHARGER_AC;                      /* TA connected. */
+#endif
+	} else if ((avg_vol > 550) && (avg_vol < 700))
+		result = CHARGER_MISC;  /* Samsung Audio Station connected.*/
+	else
+		result = CHARGER_USB;
+
+	usb_switch_clr_path(USB_PATH_ADCCHECK);
+	usb_switch_unlock();
+
+	mutex_unlock(&battery->work_lock);
+
+	pr_info("%s : result(%d), avg_vol(%d)\n", __func__, result, avg_vol);
+	return result;
+}
+
+static void sec_get_cable_status(struct battery_data *battery)
+{
+	if (check_ta_conn(battery)) {
+		battery->current_cable_status =
+			sec_get_dedicted_charger_type(battery);
+		battery->info.batt_full_count = 0;
+	} else {
+		battery->current_cable_status = CHARGER_BATTERY;
+		battery->info.batt_improper_ta = 0;
+	}
+
+	if (battery->pdata->inform_charger_connection)
+		battery->pdata->inform_charger_connection(
+					battery->current_cable_status);
+
+	pr_info("%s: current_status : %d\n",
+		__func__, battery->current_cable_status);
+}
+
+/* Processes when the interrupt line is asserted. */
+#define TA_DISCONNECT_RECHECK_TIME	300
+static void sec_TA_work_handler(struct work_struct *work)
+{
+	struct battery_data *battery =
+		container_of(work, struct battery_data, TA_work.work);
+	int ta_state = 0;
+
+	/* Prevent unstable VBUS signal from PC */
+	ta_state =  check_ta_conn(battery);
+	if (ta_state == 0) {
+		msleep(TA_DISCONNECT_RECHECK_TIME);
+		if (ta_state != check_ta_conn(battery)) {
+			pr_info("%s: unstable ta_state(%d), ignore it.\n",
+					__func__, ta_state);
+			enable_irq(battery->connect_irq);
+			return;
+		}
+	}
+	pr_info("%s: ta_state(%d)\n", __func__, ta_state);
+
+	sec_get_cable_status(battery);
+	sec_cable_changed(battery);
+
+	enable_irq(battery->connect_irq);
+}
+
+static irqreturn_t sec_TA_nCHG_interrupt_handler(int irq, void *arg)
+{
+	struct battery_data *battery = (struct battery_data *)arg;
+	pr_info("%s(%d)\n", __func__,
+		gpio_get_value(battery->pdata->charger.fullcharge_line));
+
+	disable_irq_nosync(irq);
+	cancel_delayed_work(&battery->fullcharging_work);
+	schedule_delayed_work(&battery->fullcharging_work,
+			msecs_to_jiffies(300));
+	wake_lock_timeout(&battery->fullcharge_wake_lock, HZ * 30);
+
+	return IRQ_HANDLED;
+}
+
+static irqreturn_t sec_TA_nCon_interrupt_handler(int irq, void *arg)
+{
+	struct battery_data *battery = (struct battery_data *)arg;
+	pr_info("%s(%d)\n", __func__,
+		gpio_get_value(battery->pdata->charger.connect_line));
+
+	disable_irq_nosync(irq);
+	cancel_delayed_work(&battery->TA_work);
+	queue_delayed_work(battery->sec_TA_workqueue, &battery->TA_work, 10);
+	wake_lock_timeout(&battery->cable_wake_lock, HZ * 2);
+
+	return IRQ_HANDLED;
+}
+
+static u32 get_charger_status(struct battery_data *battery)
+{
+	if (check_ta_conn(battery)) {
+		if (battery->current_cable_status == CHARGER_AC)
+			pr_info("Charger Status : AC\n");
+		else if (battery->current_cable_status == CHARGER_DOCK)
+			pr_info("Charger Status : HDMI_DOCK\n");
+		else if (battery->current_cable_status == CHARGER_MISC)
+			pr_info("Charger Status : MISC\n");
+		else
+			pr_info("Charger Status : USB\n");
+		return 1;
+	} else {
+		pr_info("Charger Status : Battery\n");
+		return 0;
+	}
+}
+
+static int is_over_abs_time(struct battery_data *battery)
+{
+	unsigned int total_time;
+	ktime_t ktime;
+	struct timespec cur_time;
+
+	if (!battery->charging_start_time)
+		return 0;
+
+	ktime = alarm_get_elapsed_realtime();
+	cur_time = ktime_to_timespec(ktime);
+
+	if (battery->info.batt_is_recharging)
+		total_time = battery->pdata->recharge_duration;
+	else
+		total_time = battery->pdata->charge_duration;
+
+	if (battery->charging_start_time + total_time < cur_time.tv_sec) {
+		pr_info("Charging time out");
+		return 1;
+	} else
+		return 0;
+}
+
+static int sec_get_bat_level(struct power_supply *bat_ps)
+{
+	struct battery_data *battery = container_of(bat_ps,
+				struct battery_data, psy_battery);
+	int fg_soc;
+	int fg_vfsoc;
+	int fg_vcell;
+	int fg_current;
+	int avg_current;
+	int recover_flag = 0;
+
+	recover_flag = fg_check_cap_corruption();
+
+	/* check VFcapacity every five minutes */
+	if (!(battery->fg_chk_cnt++ % 10)) {
+		fg_check_vf_fullcap_range();
+		battery->fg_chk_cnt = 1;
+	}
+
+	fg_soc = get_fuelgauge_value(FG_LEVEL);
+	if (fg_soc < 0) {
+		pr_info("Can't read soc!!!");
+		fg_soc = battery->info.level;
+	}
+
+	if (!battery->pdata->check_jig_status() && \
+			!max17042_chip_data->info.low_batt_comp_flag) {
+		if (((fg_soc+5) < max17042_chip_data->info.prev_repsoc) ||
+			(fg_soc > (max17042_chip_data->info.prev_repsoc+5)))
+			battery->fg_skip = 1;
+	}
+
+	/* skip one time (maximum 30 seconds) because of corruption. */
+	if (battery->fg_skip) {
+		pr_info("%s: skip update until corruption check "
+			"is done (fg_skip_cnt:%d)\n",
+			__func__, ++battery->fg_skip_cnt);
+		fg_soc = battery->info.level;
+		if (recover_flag || battery->fg_skip_cnt > 10) {
+			battery->fg_skip = 0;
+			battery->fg_skip_cnt = 0;
+		}
+	}
+
+	if (battery->low_batt_boot_flag) {
+		fg_soc = 0;
+
+		if (check_ta_conn(battery) && !check_UV_charging_case()) {
+			fg_adjust_capacity();
+			battery->low_batt_boot_flag = 0;
+		}
+
+		if (!check_ta_conn(battery))
+			battery->low_batt_boot_flag = 0;
+	}
+
+	fg_vcell = get_fuelgauge_value(FG_VOLTAGE);
+	if (fg_vcell < 0) {
+		pr_info("Can't read vcell!!!");
+		fg_vcell = battery->info.batt_vol;
+	} else
+		battery->info.batt_vol = fg_vcell;
+
+	fg_current = get_fuelgauge_value(FG_CURRENT);
+	battery->info.batt_current = fg_current;
+	avg_current = get_fuelgauge_value(FG_CURRENT_AVG);
+	fg_vfsoc = get_fuelgauge_value(FG_VF_SOC);
+
+/* P4-Creative does not set full flag by force */
+#if !defined(CONFIG_MACH_P4NOTE)
+	/* Algorithm for reducing time to fully charged (from MAXIM) */
+	if (battery->info.charging_enabled &&	/* Charging is enabled */
+		!battery->info.batt_is_recharging &&	/* Not Recharging */
+		((battery->info.charging_source == CHARGER_AC) ||
+		(battery->info.charging_source == CHARGER_MISC)) &&
+		!battery->is_first_check &&	/* Skip the first check */
+		(fg_vfsoc > 70 && (fg_current > 20 && fg_current < 250) &&
+		(avg_current > 20 && avg_current < 260))) {
+
+		if (battery->full_check_flag == 2) {
+			pr_info("%s: force fully charged SOC !! (%d)", __func__,
+					battery->full_check_flag);
+			fg_set_full_charged();
+			fg_soc = get_fuelgauge_value(FG_LEVEL);
+		} else if (battery->full_check_flag < 2)
+			pr_info("%s: full_check_flag (%d)", __func__,
+					battery->full_check_flag);
+
+		/* prevent overflow */
+		if (battery->full_check_flag++ > 10000)
+			battery->full_check_flag = 3;
+	} else
+		battery->full_check_flag = 0;
+#endif
+
+	if (battery->info.charging_source == CHARGER_AC &&
+		battery->info.batt_improper_ta == 0) {
+		if (is_over_abs_time(battery)) {
+			battery->info.abstimer_is_active = 1;
+			pr_info("%s: Charging time is over. Active abs timer.",
+				__func__);
+			pr_info(" VCELL(%d), SOC(%d)\n", fg_vcell, fg_soc);
+			sec_set_chg_en(battery, 0);
+			goto __end__;
+		}
+	} else {
+		if (battery->info.abstimer_is_active) {
+			battery->info.abstimer_is_active = 0;
+			pr_info("%s: Inactive abs timer.\n", __func__);
+		}
+	}
+
+	if ((fg_vcell <= battery->pdata->recharge_voltage) ||
+		(fg_vcell <= 4000)) {
+		if (battery->info.batt_is_full
+			|| (battery->info.abstimer_is_active
+			&& !battery->info.charging_enabled)) {
+			if (++battery->recharging_cnt > 1) {
+				pr_info("%s: Recharging start(%d ? %d).\n",
+					__func__,
+					fg_vcell,
+					battery->pdata->recharge_voltage);
+				battery->info.batt_is_recharging = 1;
+				sec_set_chg_en(battery, 1);
+				battery->recharging_cnt = 0;
+			}
+		} else
+			battery->recharging_cnt = 0;
+	} else
+		battery->recharging_cnt = 0;
+
+	if (fg_soc > 100)
+		fg_soc = 100;
+
+	/*  Checks vcell level and tries to compensate SOC if needed.*/
+	/*  If jig cable is connected, then skip low batt compensation check. */
+	if (!battery->pdata->check_jig_status() && \
+			!battery->info.charging_enabled)
+		fg_soc = low_batt_compensation(fg_soc, fg_vcell, fg_current);
+
+	/* Compensation for Charging cut off current in P8.
+	* On P8 we increase the charging current to 1.8A
+	* to complete charging in spec time.
+	* This causes the cut-off/ termination current to be high and
+	* hence to set the charging cut -off current to expected value
+	* we control it through ADC channel 6 of AP.
+	* Due to some prob in HW sometimes the CURRENT_MEA goes
+	* below V_TOP_OFF even for very low SOCs hence
+	* check for CURRENT_MEA signal only at
+	* a very later stage of charging process.
+	* For now this code is enabled only for P8-LTE.
+	* Enable it for other P8 Models only if HW is updated.
+	*/
+#ifdef CONFIG_MACH_P8LTE
+	/* Charging is done using TA only. */
+	/* TA should be a proper connection. */
+	/* Charging should be Enabled. */
+	/* Should not be in Recharging Path. */
+	/* VCELL > 4.19V. */
+	/* VFSOC > 72. 72 * 1.333 = 95.976 */
+	if ((battery->info.charging_source == CHARGER_AC) &&
+		(battery->info.batt_improper_ta == 0) &&
+		(battery->info.charging_enabled) &&
+		(battery->info.batt_is_recharging == 0) &&
+		(fg_vcell > 4190) &&
+		(fg_vfsoc > 72)) {
+		/* Read ADC Voltage. */
+		if (battery->padc) {
+			int Viset = s3c_adc_read(battery->padc,
+				SEC_CURR_MEA_ADC_CH);
+
+			if (!Viset) {
+				/* Connecting TA after boot shows latency
+				* in ADC update for the first time.
+				* Wait for ~700ms the ADC value to be updated.
+				* This is just a conservative number.
+				*/
+				pr_info(
+				"%s: Waiting ADC on Ch6 to be updated\n",
+				__func__);
+				mdelay(700);
+				Viset = s3c_adc_read(battery->padc,
+					SEC_CURR_MEA_ADC_CH);
+			}
+
+			if (Viset < V_TOP_OFF) {
+				if (battery->info.batt_full_count++ <
+					COUNT_TOP_OFF) {
+					pr_info(
+					"%s: Charging current < top-off\n",
+					__func__);
+				} else {
+					/* Disable the charging process. */
+					pr_err(
+					"%s: Charging Disabled: V-topoff(%d)",
+					__func__, V_TOP_OFF);
+					pr_err(" is more than V-Iset(%d)\n",
+					Viset);
+
+					battery->info.batt_full_count = 0;
+					sec_cable_charging(battery);
+				}
+			} else
+				battery->info.batt_full_count = 0;
+		} else {
+			pr_err(
+			"%s: Can't read the ADC regsiter\n",
+			__func__);
+		}
+	}
+#endif
+
+__end__:
+	pr_debug("fg_vcell = %d, fg_soc = %d, is_full = %d, full_count = %d",
+		fg_vcell, fg_soc,
+		battery->info.batt_is_full,
+		battery->info.batt_full_count);
+
+	if (battery->is_first_check)
+		battery->is_first_check = false;
+
+	if (battery->info.batt_is_full &&
+		(battery->info.charging_source != CHARGER_USB))
+		fg_soc = 100;
+
+	return fg_soc;
+}
+
+static int sec_get_bat_vol(struct power_supply *bat_ps)
+{
+	struct battery_data *battery = container_of(bat_ps,
+				struct battery_data, psy_battery);
+	return battery->info.batt_vol;
+}
+
+static bool check_UV_charging_case(void)
+{
+	int fg_vcell = get_fuelgauge_value(FG_VOLTAGE);
+	int fg_current = get_fuelgauge_value(FG_CURRENT);
+	int threshold = 0;
+
+	if (get_fuelgauge_value(FG_BATTERY_TYPE) == SDI_BATTERY_TYPE)
+		threshold = 3300 + ((fg_current * 17) / 100);
+	else if (get_fuelgauge_value(FG_BATTERY_TYPE) == ATL_BATTERY_TYPE)
+		threshold = 3300 + ((fg_current * 13) / 100);
+
+	if (fg_vcell <= threshold)
+		return 1;
+	else
+		return 0;
+}
+
+static void sec_set_time_for_charging(struct battery_data *battery, int mode)
+{
+	if (mode) {
+		ktime_t ktime;
+		struct timespec cur_time;
+
+		ktime = alarm_get_elapsed_realtime();
+		cur_time = ktime_to_timespec(ktime);
+
+		/* record start time for abs timer */
+		battery->charging_start_time = cur_time.tv_sec;
+	} else {
+		/* initialize start time for abs timer */
+		battery->charging_start_time = 0;
+	}
+}
+
+static void disable_internal_charger(void)
+{
+	struct power_supply *internal_psy = \
+				power_supply_get_by_name("max8997-charger");
+	union power_supply_propval value;
+	int ret;
+
+	/* Disable inner charger(MAX8997) */
+	if (internal_psy) {
+		value.intval = POWER_SUPPLY_STATUS_DISCHARGING;
+		ret = internal_psy->set_property(internal_psy, \
+					POWER_SUPPLY_PROP_STATUS, &value);
+		if (ret)
+			pr_err("%s: fail to set %s discharging status(%d)\n",
+					__func__, internal_psy->name, ret);
+	}
+}
+static void sec_set_chg_current(struct battery_data *battery, int set_current)
+{
+#if defined(P8_CHARGING_FEATURE_01)
+	if ((set_current > CHARGING_CURRENT_HIGH_LOW_STANDARD) && \
+			(battery->current_cable_status == CHARGER_AC))
+		sec_set_charging(battery, CHARGER_AC);
+	else if (battery->current_cable_status == CHARGER_MISC)
+		sec_set_charging(battery, CHARGER_MISC);
+	else
+		sec_set_charging(battery, CHARGER_USB);
+#else	/* P4C H/W rev0.0 does not support yet */
+	if (battery->current_cable_status == CHARGER_AC) {
+		if (battery->pdata->set_charging_current)
+			battery->pdata->set_charging_current((int)set_current);
+
+		if (battery->pdata->get_charging_current)
+			battery->info.charging_current = \
+					battery->pdata->get_charging_current();
+	} else {
+		battery->info.charging_current = CHARGING_CURRENT_USB;
+	}
+#endif
+}
+
+static void sec_set_chg_en(struct battery_data *battery, int enable)
+{
+#if defined(P2_CHARGING_FEATURE_02) || defined(P4_CHARGING_FEATURE_02)
+	/* Disable internal charger(MAX8997) */
+	/* because of using external charger */
+	disable_internal_charger();
+
+	if (battery->pdata->set_charging_state) {
+		if (battery->current_cable_status == CHARGER_AC)
+			battery->pdata->set_charging_state(enable,
+						CABLE_TYPE_TA);
+		else if (battery->current_cable_status == CHARGER_MISC)
+			battery->pdata->set_charging_state(enable,
+						CABLE_TYPE_STATION);
+		else
+			battery->pdata->set_charging_state(enable,
+						CABLE_TYPE_USB);
+	}
+
+	if ((enable) || (battery->pdata->get_charging_current))
+		battery->info.charging_current = \
+				battery->pdata->get_charging_current();
+
+	sec_set_time_for_charging(battery, enable);
+
+	if (!enable)
+		battery->info.batt_is_recharging = 0;
+
+	pr_info("%s: External charger is %s", __func__, (enable ? "enabled." : \
+								"disabled."));
+#elif defined(P4_CHARGING_FEATURE_01)
+	int charger_enable_line = battery->pdata->charger.enable_line;
+
+	/* Disable internal charger(MAX8997) */
+	/* because of using external charger */
+	disable_internal_charger();
+
+	/* In case of HDMI connecting, set charging current 1.5A */
+#if defined(CONFIG_MACH_P4NOTE)
+	if (battery->pdata->set_charging_state) {
+		if (battery->current_cable_status == CHARGER_AC)
+			battery->pdata->set_charging_state(enable,
+			CABLE_TYPE_TA);
+		else if (battery->current_cable_status == CHARGER_MISC)
+			battery->pdata->set_charging_state(enable,
+			CABLE_TYPE_STATION);
+		else if (battery->current_cable_status == CHARGER_DOCK)
+			battery->pdata->set_charging_state(enable,
+			CABLE_TYPE_DESKDOCK);
+		else
+			battery->pdata->set_charging_state(enable,
+			CABLE_TYPE_USB);
+	}
+
+	if (battery->pdata->get_charging_current)
+		battery->info.charging_current = \
+				battery->pdata->get_charging_current();
+
+	sec_set_time_for_charging(battery, enable);
+
+	if (!enable)
+		battery->info.batt_is_recharging = 0;
+#else
+	if (system_rev >= 2) {
+		if (battery->pdata->set_charging_state) {
+			if (battery->current_cable_status == CHARGER_AC)
+				battery->pdata->set_charging_state(enable,
+				CABLE_TYPE_TA);
+			else if (battery->current_cable_status == CHARGER_MISC)
+				battery->pdata->set_charging_state(enable,
+				CABLE_TYPE_STATION);
+			else if (battery->current_cable_status == CHARGER_DOCK)
+				battery->pdata->set_charging_state(enable,
+				CABLE_TYPE_DESKDOCK);
+			else
+				battery->pdata->set_charging_state(enable,
+				CABLE_TYPE_USB);
+		}
+
+		if (battery->pdata->get_charging_current)
+			battery->info.charging_current = \
+					battery->pdata->get_charging_current();
+
+		sec_set_time_for_charging(battery, enable);
+
+		if (!enable)
+			battery->info.batt_is_recharging = 0;
+	} else {
+		if (enable) {
+			sec_set_charging(battery,
+					battery->current_cable_status);
+			gpio_set_value(charger_enable_line, 0);
+
+			pr_info("%s: Enabling external charger ", __func__);
+			sec_set_time_for_charging(battery, 1);
+		} else {
+			gpio_set_value(charger_enable_line, 1);
+			pr_info("%s: Disabling external charger ", __func__);
+
+			sec_set_time_for_charging(battery, 0);
+			battery->info.batt_is_recharging = 0;
+		}
+	}
+#endif
+#else
+	int charger_enable_line = battery->pdata->charger.enable_line;
+
+	/* Disable internal charger(MAX8997) */
+	/* because of using external charger */
+	disable_internal_charger();
+
+	if (enable) {
+		sec_set_charging(battery, battery->current_cable_status);
+		gpio_set_value(charger_enable_line, 0);
+
+		pr_info("%s: Enabling the external charger ", __func__);
+		sec_set_time_for_charging(battery, 1);
+	} else {
+		gpio_set_value(charger_enable_line, 1);
+		pr_info("%s: Disabling the external charger ", __func__);
+
+		sec_set_time_for_charging(battery, 0);
+		battery->info.batt_is_recharging = 0;
+	}
+#endif
+	battery->info.charging_enabled = enable;
+}
+
+static void sec_temp_control(struct battery_data *battery, int mode)
+{
+	switch (mode) {
+	case POWER_SUPPLY_HEALTH_GOOD:
+		pr_debug("GOOD");
+		battery->info.batt_health = mode;
+		break;
+	case POWER_SUPPLY_HEALTH_OVERHEAT:
+		pr_debug("OVERHEAT");
+		battery->info.batt_health = mode;
+		break;
+	case POWER_SUPPLY_HEALTH_COLD:
+		pr_debug("FREEZE");
+		battery->info.batt_health = mode;
+		break;
+	default:
+		break;
+	}
+	schedule_work(&battery->cable_work);
+}
+
+static int sec_get_bat_temp(struct power_supply *bat_ps)
+{
+	struct battery_data *battery = container_of(bat_ps,
+				struct battery_data, psy_battery);
+	int health = battery->info.batt_health;
+	int update = 0;
+	int battery_temp;
+	int temp_high_threshold;
+	int temp_high_recovery;
+	int temp_low_threshold;
+	int temp_low_recovery;
+
+	battery_temp = get_fuelgauge_value(FG_TEMPERATURE);
+
+	temp_high_threshold = battery->pdata->temp_high_threshold;
+	temp_high_recovery = battery->pdata->temp_high_recovery;
+	temp_low_threshold = battery->pdata->temp_low_threshold;
+	temp_low_recovery = battery->pdata->temp_low_recovery;
+
+#ifdef __TEST_DEVICE_DRIVER__
+	switch (bat_temp_force_state) {
+	case 0:
+		break;
+	case 1:
+		battery_temp = temp_high_threshold + 1;
+		break;
+	case 2:
+		battery_temp = temp_low_threshold - 1;
+		break;
+	default:
+		break;
+	}
+#endif /* __TEST_DEVICE_DRIVER__ */
+
+	if (battery_temp >= temp_high_threshold) {
+		if (health != POWER_SUPPLY_HEALTH_OVERHEAT &&
+				health != POWER_SUPPLY_HEALTH_UNSPEC_FAILURE) {
+			pr_info("battery overheat(%d>=%d),charging unavailable",
+				battery_temp, temp_high_threshold);
+			sec_temp_control(battery, POWER_SUPPLY_HEALTH_OVERHEAT);
+			update = 1;
+		}
+	} else if (battery_temp <= temp_high_recovery &&
+			battery_temp >= temp_low_recovery) {
+		if (health == POWER_SUPPLY_HEALTH_OVERHEAT ||
+				health == POWER_SUPPLY_HEALTH_COLD) {
+			pr_info("battery recovery(%d,%d~%d),charging available",
+				battery_temp, temp_low_recovery,
+				temp_high_recovery);
+			sec_temp_control(battery, POWER_SUPPLY_HEALTH_GOOD);
+			update = 1;
+		}
+	} else if (battery_temp <= temp_low_threshold) {
+		if (health != POWER_SUPPLY_HEALTH_COLD &&
+				health != POWER_SUPPLY_HEALTH_UNSPEC_FAILURE) {
+			pr_info("battery cold(%d <= %d), charging unavailable.",
+				battery_temp, temp_low_threshold);
+			sec_temp_control(battery, POWER_SUPPLY_HEALTH_COLD);
+			update = 1;
+		}
+	}
+
+	if (update)
+		pr_info("sec_get_bat_temp = %d.", battery_temp);
+
+	return battery_temp/100;
+}
+
+static int sec_bat_get_charging_status(struct battery_data *battery)
+{
+	switch (battery->info.charging_source) {
+	case CHARGER_BATTERY:
+	case CHARGER_USB:
+		return POWER_SUPPLY_STATUS_DISCHARGING;
+	case CHARGER_AC:
+	case CHARGER_MISC:
+	case CHARGER_DOCK:
+		if (battery->info.batt_is_full ||
+			battery->info.level == 100)
+			return POWER_SUPPLY_STATUS_FULL;
+		else if (battery->info.batt_improper_ta)
+			return POWER_SUPPLY_STATUS_DISCHARGING;
+		else
+			return POWER_SUPPLY_STATUS_CHARGING;
+	case CHARGER_DISCHARGE:
+		return POWER_SUPPLY_STATUS_NOT_CHARGING;
+	default:
+		return POWER_SUPPLY_STATUS_UNKNOWN;
+	}
+}
+
+static int sec_bat_set_property(struct power_supply *ps,
+				enum power_supply_property psp,
+				const union power_supply_propval *val)
+{
+	struct battery_data *battery = container_of(ps,
+				struct battery_data, psy_battery);
+
+	switch (psp) {
+	case POWER_SUPPLY_PROP_ONLINE:
+		battery->pmic_cable_state = val->intval;
+		pr_info("PMIC cable state: %d\n", battery->pmic_cable_state);
+		if (battery->cable_detect_source == 2) {
+			/* cable is attached or detached.
+			   called by USB switch(MUIC) */
+			sec_get_cable_status(battery);
+			sec_cable_changed(battery);
+		}
+		battery->cable_detect_source = 0;
+		break;
+	default:
+		return -EINVAL;
+	}
+	return 0;
+}
+
+static int sec_bat_get_property(struct power_supply *bat_ps,
+		enum power_supply_property psp,
+		union power_supply_propval *val)
+{
+	struct battery_data *battery = container_of(bat_ps,
+				struct battery_data, psy_battery);
+
+	pr_debug("psp = %d", psp);
+	switch (psp) {
+	case POWER_SUPPLY_PROP_STATUS:
+		val->intval = sec_bat_get_charging_status(battery);
+		break;
+	case POWER_SUPPLY_PROP_HEALTH:
+		val->intval = battery->info.batt_health;
+		break;
+	case POWER_SUPPLY_PROP_PRESENT:
+		val->intval = battery->present;
+		break;
+	case POWER_SUPPLY_PROP_TECHNOLOGY:
+		val->intval = POWER_SUPPLY_TECHNOLOGY_LION;
+		break;
+	case POWER_SUPPLY_PROP_CAPACITY:
+		val->intval = battery->info.level;
+		pr_info("level = %d\n", val->intval);
+		break;
+	case POWER_SUPPLY_PROP_TEMP:
+		val->intval = battery->info.batt_temp;
+		pr_debug("temp = %d\n", val->intval);
+		break;
+	default:
+		return -EINVAL;
+	}
+	return 0;
+}
+
+static int sec_usb_get_property(struct power_supply *usb_ps,
+		enum power_supply_property psp,
+		union power_supply_propval *val)
+{
+	struct battery_data *battery = container_of(usb_ps,
+				struct battery_data, psy_usb);
+
+	enum charger_type charger = battery->info.charging_source;
+
+	switch (psp) {
+	case POWER_SUPPLY_PROP_ONLINE:
+		val->intval = (charger == CHARGER_USB ? 1 : 0);
+		break;
+	default:
+		return -EINVAL;
+	}
+
+	return 0;
+}
+
+static int sec_ac_get_property(struct power_supply *ac_ps,
+		enum power_supply_property psp,
+		union power_supply_propval *val)
+{
+	struct battery_data *battery = container_of(ac_ps,
+				struct battery_data, psy_ac);
+
+	enum charger_type charger = battery->info.charging_source;
+
+	switch (psp) {
+	case POWER_SUPPLY_PROP_ONLINE:
+		if ((charger == CHARGER_AC) || (charger == CHARGER_MISC)
+			|| (charger == CHARGER_DOCK))
+			val->intval = 1;
+		else
+			val->intval = 0;
+		break;
+	default:
+		return -EINVAL;
+	}
+
+	return 0;
+}
+
+#define SEC_BATTERY_ATTR(_name)\
+{\
+	.attr = { .name = #_name, .mode = S_IRUGO | (S_IWUSR | S_IWGRP) },\
+	.show = sec_bat_show_property,\
+	.store = sec_bat_store,\
+}
+
+static struct device_attribute sec_battery_attrs[] = {
+	SEC_BATTERY_ATTR(batt_vol),
+	SEC_BATTERY_ATTR(temp),
+#ifdef CONFIG_MACH_SAMSUNG_P5
+	SEC_BATTERY_ATTR(batt_temp_cels),
+#endif
+	SEC_BATTERY_ATTR(batt_charging_source),
+	SEC_BATTERY_ATTR(fg_soc),
+#if defined(CONFIG_MACH_P4NOTE)
+	SEC_BATTERY_ATTR(batt_reset_soc),
+#else
+	SEC_BATTERY_ATTR(reset_soc),
+#endif
+	SEC_BATTERY_ATTR(fg_reset_cap),
+	SEC_BATTERY_ATTR(fg_reg),
+	SEC_BATTERY_ATTR(batt_type),
+	SEC_BATTERY_ATTR(batt_temp_check),
+	SEC_BATTERY_ATTR(batt_full_check),
+	SEC_BATTERY_ATTR(batt_current_now),
+	SEC_BATTERY_ATTR(siop_activated),
+#ifdef CONFIG_SAMSUNG_LPM_MODE
+	SEC_BATTERY_ATTR(batt_lp_charging),
+	SEC_BATTERY_ATTR(voltage_now),
+#endif
+	SEC_BATTERY_ATTR(jig_on),
+	SEC_BATTERY_ATTR(fg_capacity),
+};
+
+enum {
+	BATT_VOL = 0,
+	BATT_TEMP,
+#ifdef CONFIG_MACH_SAMSUNG_P5
+	BATT_TEMP_CELS,
+#endif
+	BATT_CHARGING_SOURCE,
+	BATT_FG_SOC,
+	BATT_RESET_SOC,
+	BATT_RESET_CAP,
+	BATT_FG_REG,
+	BATT_BATT_TYPE,
+	BATT_TEMP_CHECK,
+	BATT_FULL_CHECK,
+	BATT_CURRENT_NOW,
+	SIOP_ACTIVATED,
+#ifdef CONFIG_SAMSUNG_LPM_MODE
+	BATT_LP_CHARGING,
+	VOLTAGE_NOW,
+#endif
+	JIG_ON,
+	FG_CAPACITY,
+};
+
+static int sec_bat_create_attrs(struct device *dev)
+{
+	int i, rc;
+
+	for (i = 0; i < ARRAY_SIZE(sec_battery_attrs); i++) {
+		rc = device_create_file(dev, &sec_battery_attrs[i]);
+		if (rc)
+			goto sec_attrs_failed;
+	}
+	return 0;
+
+sec_attrs_failed:
+	while (i--)
+		device_remove_file(dev, &sec_battery_attrs[i]);
+	return rc;
+}
+
+static ssize_t sec_bat_show_property(struct device *dev,
+			struct device_attribute *attr,
+			char *buf)
+{
+	int i = 0;
+#ifdef CONFIG_MACH_SAMSUNG_P5
+	s32 temp = 0;
+#endif
+	u8 batt_str[5];
+	const ptrdiff_t off = attr - sec_battery_attrs;
+
+	switch (off) {
+	case BATT_VOL:
+		i += scnprintf(buf + i, PAGE_SIZE - i, "%d\n",
+		get_fuelgauge_value(FG_VOLTAGE));
+		break;
+	case BATT_TEMP:
+		i += scnprintf(buf + i, PAGE_SIZE - i, "%d\n",
+		debug_batterydata->info.batt_temp);
+		break;
+#ifdef CONFIG_MACH_SAMSUNG_P5
+	case BATT_TEMP_CELS:
+			temp = ((debug_batterydata->info.batt_temp) / 10);
+			i += scnprintf(buf + i, PAGE_SIZE - i, "%d\n",
+			temp);
+			break;
+#endif
+	case BATT_CHARGING_SOURCE:
+		i += scnprintf(buf + i, PAGE_SIZE - i, "%d\n",
+		debug_batterydata->info.charging_source);
+		break;
+	case BATT_FG_SOC:
+		i += scnprintf(buf + i, PAGE_SIZE - i, "%d\n",
+		get_fuelgauge_value(FG_LEVEL));
+		break;
+	case BATT_BATT_TYPE:
+		if (get_fuelgauge_value(FG_BATTERY_TYPE) == SDI_BATTERY_TYPE)
+			sprintf(batt_str, "SDI");
+		else if (get_fuelgauge_value(FG_BATTERY_TYPE) ==
+			ATL_BATTERY_TYPE)
+			sprintf(batt_str, "ATL");
+		i += scnprintf(buf + i, PAGE_SIZE - i, "%s_%s\n",
+		batt_str, batt_str);
+		break;
+	case BATT_TEMP_CHECK:
+		i += scnprintf(buf + i, PAGE_SIZE - i, "%d\n",
+		debug_batterydata->info.batt_health);
+		break;
+	case BATT_FULL_CHECK:
+		i += scnprintf(buf + i, PAGE_SIZE - i, "%d\n",
+		debug_batterydata->info.batt_is_full);
+		break;
+	case BATT_CURRENT_NOW:
+		i += scnprintf(buf + i, PAGE_SIZE - i, "%d\n",
+		debug_batterydata->info.charging_current);
+		break;
+	case SIOP_ACTIVATED:
+		i += scnprintf(buf + i, PAGE_SIZE - i, "%d\n",
+		debug_batterydata->info.siop_activated);
+		break;
+#ifdef CONFIG_SAMSUNG_LPM_MODE
+	case BATT_LP_CHARGING:
+		i += scnprintf(buf + i, PAGE_SIZE - i, "%d\n",
+			debug_batterydata->charging_mode_booting);
+		break;
+	case VOLTAGE_NOW:
+		i += scnprintf(buf + i, PAGE_SIZE - i, "%d\n",
+			get_fuelgauge_value(FG_VOLTAGE_NOW));
+		break;
+#endif
+	case JIG_ON:
+		i += scnprintf(buf + i, PAGE_SIZE - i, "%d\n",
+			debug_batterydata->pdata->check_jig_status());
+		break;
+	case FG_CAPACITY:
+		i += scnprintf(buf + i, PAGE_SIZE - i,
+				"0x%04x 0x%04x 0x%04x 0x%04x\n",
+				get_fuelgauge_capacity(CAPACITY_TYPE_FULL),
+				get_fuelgauge_capacity(CAPACITY_TYPE_MIX),
+				get_fuelgauge_capacity(CAPACITY_TYPE_AV),
+				get_fuelgauge_capacity(CAPACITY_TYPE_REP));
+		break;
+	default:
+		i = -EINVAL;
+	}
+
+	return i;
+}
+
+static ssize_t sec_bat_store(struct device *dev,
+			     struct device_attribute *attr,
+			     const char *buf, size_t count)
+{
+	int x = 0;
+	int ret = 0;
+	const ptrdiff_t off = attr - sec_battery_attrs;
+
+	switch (off) {
+	case BATT_RESET_SOC:
+		if (sscanf(buf, "%d\n", &x) == 1) {
+			if (x == 1) {
+				if (!check_ta_conn(debug_batterydata))
+					fg_reset_soc();
+			}
+			ret = count;
+		}
+		sec_bat_status_update(&debug_batterydata->psy_battery);
+		pr_debug("Reset SOC:%d ", x);
+		break;
+	case BATT_RESET_CAP:
+		if (sscanf(buf, "%d\n", &x) == 1 ||
+			x == 2 || x == 3 || x == 4) {
+			if (x == 1 || x == 2 ||
+				x == 3 || x == 4)
+				fg_reset_capacity();
+			ret = count;
+		}
+		pr_debug("%s: Reset CAP:%d\n", __func__, x);
+		break;
+	case BATT_FG_REG:
+		if (sscanf(buf, "%d\n", &x) == 1) {
+			if (x == 1)
+				fg_periodic_read();
+			ret = count;
+		}
+		pr_debug("%s: FG Register:%d\n", __func__, x);
+		break;
+	case BATT_CURRENT_NOW:
+		if (sscanf(buf, "%d\n", &x) == 1) {
+			sec_set_chg_current(debug_batterydata, (int)x);
+			ret = count;
+		}
+		pr_debug("%s: BATT_CURRENT_NOW :%d\n", __func__, x);
+		break;
+	case SIOP_ACTIVATED:
+		if (sscanf(buf, "%d\n", &x) == 1) {
+			debug_batterydata->info.siop_activated = (int)x;
+			if (debug_batterydata->info.siop_activated ==
+								SIOP_ACTIVE)
+				sec_set_chg_current(debug_batterydata,
+						SIOP_ACTIVE_CHARGE_CURRENT);
+			else
+				sec_set_chg_current(debug_batterydata,
+						SIOP_DEACTIVE_CHARGE_CURRENT);
+			ret = count;
+		}
+		pr_info("%s: SIOP_ACTIVATED :%d\n", __func__, x);
+		break;
+#ifdef CONFIG_SAMSUNG_LPM_MODE
+	case BATT_LP_CHARGING:
+		if (sscanf(buf, "%d\n", &x) == 1) {
+			debug_batterydata->charging_mode_booting = x;
+			ret = count;
+		}
+		break;
+#endif
+	default:
+		ret = -EINVAL;
+	}
+	return ret;
+}
+
+#ifdef __TEST_DEVICE_DRIVER__
+#define SEC_TEST_ATTR(_name)\
+{\
+	.attr = { .name = #_name, .mode = S_IRUGO | (S_IWUSR | S_IWGRP) },\
+	.show = sec_batt_test_show_property,\
+	.store = sec_batt_test_store,\
+}
+
+static struct device_attribute sec_batt_test_attrs[] = {
+	SEC_TEST_ATTR(suspend_lock),
+	SEC_TEST_ATTR(control_temp),
+};
+
+enum {
+	SUSPEND_LOCK = 0,
+	CTRL_TEMP,
+};
+
+static int sec_batt_test_create_attrs(struct device *dev)
+{
+	int i, ret;
+
+	for (i = 0; i < ARRAY_SIZE(sec_batt_test_attrs); i++) {
+		ret = device_create_file(dev, &sec_batt_test_attrs[i]);
+		if (ret)
+			goto sec_attrs_failed;
+	}
+	goto succeed;
+
+sec_attrs_failed:
+	while (i--)
+		device_remove_file(dev, &sec_batt_test_attrs[i]);
+succeed:
+	return ret;
+}
+
+static ssize_t sec_batt_test_show_property(struct device *dev,
+						struct device_attribute *attr,
+						char *buf)
+{
+	int i = 0;
+	const ptrdiff_t off = attr - sec_batt_test_attrs;
+
+	switch (off) {
+	default:
+		i = -EINVAL;
+	}
+
+	return i;
+}
+
+static ssize_t sec_batt_test_store(struct device *dev,
+			     struct device_attribute *attr,
+			     const char *buf, size_t count)
+{
+	int mode = 0;
+	int ret = 0;
+	const ptrdiff_t off = attr - sec_batt_test_attrs;
+
+	switch (off) {
+	case SUSPEND_LOCK:
+		if (sscanf(buf, "%d\n", &mode) != 1)
+			break;
+
+		dev_dbg(dev, "%s: suspend lock (%d)\n", __func__, mode);
+		if (mode)
+			wake_lock(&debug_batterydata->wake_lock_for_dev);
+		else
+			wake_lock_timeout(&debug_batterydata->wake_lock_for_dev,
+					HZ / 2);
+		ret = count;
+		break;
+
+	case CTRL_TEMP:
+		if (sscanf(buf, "%d\n", &mode) == 1) {
+			dev_info(dev, "%s: control temp (%d)\n", __func__,
+					mode);
+			bat_temp_force_state = mode;
+			ret = count;
+		}
+		break;
+
+	default:
+		ret = -EINVAL;
+	}
+
+	return ret;
+}
+#endif /* __TEST_DEVICE_DRIVER__ */
+
+int check_usb_status;
+static int sec_cable_status_update(struct battery_data *battery, int status)
+{
+	int ret = 0;
+	enum charger_type source = CHARGER_BATTERY;
+
+	pr_debug("Update cable status ");
+
+	if (!battery->sec_battery_initial)
+		return -EPERM;
+
+	switch (status) {
+	case CHARGER_BATTERY:
+		pr_info("cable NOT PRESENT ");
+		battery->info.charging_source = CHARGER_BATTERY;
+		break;
+	case CHARGER_USB:
+		pr_info("cable USB");
+		battery->info.charging_source = CHARGER_USB;
+		break;
+	case CHARGER_AC:
+		pr_info("cable AC");
+		battery->info.charging_source = CHARGER_AC;
+		break;
+	case CHARGER_DOCK:
+		pr_info("cable DOCK");
+		battery->info.charging_source = CHARGER_DOCK;
+		break;
+	case CHARGER_MISC:
+		pr_info("cable MISC");
+		battery->info.charging_source = CHARGER_AC;
+#if defined(CONFIG_MACH_P8LTE)  || defined(CONFIG_MACH_P8)
+		battery->info.charging_source = CHARGER_MISC;
+#endif
+		break;
+	case CHARGER_DISCHARGE:
+		pr_info("Discharge");
+		battery->info.charging_source = CHARGER_DISCHARGE;
+		break;
+	default:
+		pr_info("Not supported status");
+		ret = -EINVAL;
+	}
+	check_usb_status = source = battery->info.charging_source;
+
+	if (source == CHARGER_USB || source == CHARGER_AC || \
+		source == CHARGER_MISC  || source == CHARGER_DOCK) {
+		wake_lock(&battery->vbus_wake_lock);
+	} else {
+		/* give userspace some time to see the uevent and update
+		* LED state or whatnot...
+		*/
+		if (!get_charger_status(battery)) {
+			if (battery->charging_mode_booting)
+				wake_lock_timeout(&battery->vbus_wake_lock,
+						5 * HZ);
+			else
+				wake_lock_timeout(&battery->vbus_wake_lock,
+						HZ / 2);
+		}
+	}
+
+	wake_lock(&battery->work_wake_lock);
+	schedule_work(&battery->battery_work);
+
+	pr_debug("call power_supply_changed ");
+
+	return ret;
+}
+
+static void sec_bat_status_update(struct power_supply *bat_ps)
+{
+	struct battery_data *battery = container_of(bat_ps,
+				struct battery_data, psy_battery);
+
+	int old_level, old_temp, old_health, old_is_full;
+
+	if (!battery->sec_battery_initial)
+		return;
+
+	mutex_lock(&battery->work_lock);
+	old_temp = battery->info.batt_temp;
+	old_health = battery->info.batt_health;
+	old_level = battery->info.level;
+	old_is_full = battery->info.batt_is_full;
+
+	battery->info.batt_temp = sec_get_bat_temp(bat_ps);
+	if (!battery->is_low_batt_alarm)
+		battery->info.level = sec_get_bat_level(bat_ps);
+
+	if (!battery->info.charging_enabled &&
+			!battery->info.batt_is_full &&
+			!battery->pdata->check_jig_status()) {
+		if (battery->info.level > old_level)
+			battery->info.level = old_level;
+	}
+
+	battery->info.batt_vol = sec_get_bat_vol(bat_ps);
+
+	if (battery->pdata->get_charging_state)
+		battery->pdata->get_charging_state();
+
+	power_supply_changed(bat_ps);
+	pr_debug("call power_supply_changed");
+
+	pr_info("BAT : soc(%d), vcell(%dmV), curr(%dmA), temp(%d.%d), chg(%d)",
+		battery->info.level,
+		battery->info.batt_vol,
+		battery->info.batt_current,
+		battery->info.batt_temp/10,
+		battery->info.batt_temp%10,
+		battery->info.charging_enabled);
+	pr_info(", full(%d), rechg(%d), lowbat(%d), cable(%d)\n",
+		battery->info.batt_is_full,
+		battery->info.batt_is_recharging,
+		battery->is_low_batt_alarm,
+		battery->current_cable_status);
+
+	mutex_unlock(&battery->work_lock);
+}
+
+static void sec_cable_check_status(struct battery_data *battery)
+{
+	enum charger_type status = 0;
+
+	mutex_lock(&battery->work_lock);
+
+	if (get_charger_status(battery)) {
+		pr_info("%s: Returning to Normal discharge path.\n",
+			__func__);
+		cancel_delayed_work(&battery->fuelgauge_recovery_work);
+		battery->is_low_batt_alarm = false;
+
+		if (battery->info.batt_health != POWER_SUPPLY_HEALTH_GOOD) {
+			pr_info("Unhealth battery state! ");
+			status = CHARGER_DISCHARGE;
+			sec_set_chg_en(battery, 0);
+			goto __end__;
+		}
+
+		status = battery->current_cable_status;
+
+		sec_set_chg_en(battery, 1);
+
+		max17042_chip_data->info.low_batt_comp_flag = 0;
+		reset_low_batt_comp_cnt();
+
+	} else {
+		status = CHARGER_BATTERY;
+		sec_set_chg_en(battery, 0);
+	}
+__end__:
+	sec_cable_status_update(battery, status);
+	mutex_unlock(&battery->work_lock);
+}
+
+static void sec_bat_work(struct work_struct *work)
+{
+	struct battery_data *battery =
+		container_of(work, struct battery_data, battery_work);
+	unsigned long flags;
+	pr_debug("%s\n", __func__);
+
+	sec_bat_status_update(&battery->psy_battery);
+	battery->last_poll = alarm_get_elapsed_realtime();
+
+	/* prevent suspend before starting the alarm */
+	local_irq_save(flags);
+	wake_unlock(&battery->work_wake_lock);
+	sec_program_alarm(battery, FAST_POLL);
+	local_irq_restore(flags);
+}
+
+static void sec_cable_work(struct work_struct *work)
+{
+	struct battery_data *battery =
+		container_of(work, struct battery_data, cable_work);
+	pr_debug("%s\n", __func__);
+
+	sec_cable_check_status(battery);
+}
+
+static int sec_bat_suspend(struct device *dev)
+{
+	struct battery_data *battery = dev_get_drvdata(dev);
+	pr_info("%s start\n", __func__);
+
+	if (!get_charger_status(battery)) {
+		sec_program_alarm(battery, SLOW_POLL);
+		battery->slow_poll = 1;
+	}
+
+	pr_info("%s end\n", __func__);
+	return 0;
+}
+
+static void sec_bat_resume(struct device *dev)
+{
+	struct battery_data *battery = dev_get_drvdata(dev);
+	pr_info("%s start\n", __func__);
+
+	irq_set_irq_type(battery->charging_irq
+		, IRQF_TRIGGER_RISING | IRQF_TRIGGER_FALLING);
+
+	if (battery->slow_poll) {
+		sec_program_alarm(battery, FAST_POLL);
+		battery->slow_poll = 0;
+	}
+
+	wake_lock(&battery->work_wake_lock);
+	schedule_work(&battery->battery_work);
+
+	pr_info("%s end\n", __func__);
+}
+
+static void sec_cable_changed(struct battery_data *battery)
+{
+	pr_debug("charger changed ");
+
+	if (!battery->sec_battery_initial)
+		return;
+
+	if (!battery->charging_mode_booting)
+		battery->info.batt_is_full = 0;
+
+	battery->info.batt_health = POWER_SUPPLY_HEALTH_GOOD;
+
+	schedule_work(&battery->cable_work);
+
+	/*
+	 * Wait a bit before reading ac/usb line status and setting charger,
+	 * because ac/usb status readings may lag from irq.
+	 */
+
+	battery->last_poll = alarm_get_elapsed_realtime();
+	sec_program_alarm(battery, FAST_POLL);
+}
+
+void sec_cable_charging(struct battery_data *battery)
+{
+	battery->full_charge_comp_recharge_info =
+		battery->info.batt_is_recharging;
+
+	if (!battery->sec_battery_initial)
+		return;
+
+	if (battery->info.charging_enabled &&
+		battery->info.batt_health == POWER_SUPPLY_HEALTH_GOOD) {
+		sec_set_chg_en(battery, 0);
+		battery->info.batt_is_full = 1;
+		/* full charge compensation algorithm by MAXIM */
+		fg_fullcharged_compensation(
+			battery->full_charge_comp_recharge_info, 1);
+
+		cancel_delayed_work(&battery->full_comp_work);
+		schedule_delayed_work(&battery->full_comp_work, 100);
+
+		pr_info("battery is full charged ");
+	}
+
+	wake_lock(&battery->work_wake_lock);
+	schedule_work(&battery->battery_work);
+}
+
+static irqreturn_t low_battery_isr(int irq, void *arg)
+{
+	struct battery_data *battery = (struct battery_data *)arg;
+	pr_debug("%s(%d)", __func__,
+		gpio_get_value(max17042_chip_data->pdata->fuel_alert_line));
+
+	cancel_delayed_work(&battery->fuelgauge_work);
+	schedule_delayed_work(&battery->fuelgauge_work, 0);
+
+	return IRQ_HANDLED;
+}
+
+void fuelgauge_recovery_handler(struct work_struct *work)
+{
+	struct battery_data *battery =
+		container_of(work, struct battery_data,
+		fuelgauge_recovery_work.work);
+	int current_soc;
+
+	if (battery->info.level > 0) {
+		pr_err("%s: Reduce the Reported SOC by 1 unit, wait for 30s\n",
+		__func__);
+		if (!battery->info.charging_enabled)
+			wake_lock_timeout(&battery->vbus_wake_lock, HZ);
+		current_soc = get_fuelgauge_value(FG_LEVEL);
+		if (current_soc) {
+			pr_info("%s: Returning to Normal discharge path.\n",
+				__func__);
+			pr_info(" Actual SOC(%d) non-zero.\n",
+			current_soc);
+			battery->is_low_batt_alarm = false;
+			return;
+		} else {
+			battery->info.level--;
+			pr_err("%s: New Reduced Reported SOC  (%d).\n",
+				__func__, battery->info.level);
+			power_supply_changed(&battery->psy_battery);
+			queue_delayed_work(battery->sec_TA_workqueue,
+				&battery->fuelgauge_recovery_work,
+				msecs_to_jiffies(30000));
+		}
+	} else {
+		if (!get_charger_status(battery)) {
+			pr_err("Set battery level as 0, power off.\n");
+			battery->info.level = 0;
+			wake_lock_timeout(&battery->vbus_wake_lock, HZ);
+			power_supply_changed(&battery->psy_battery);
+		}
+	}
+}
+
+#define STABLE_LOW_BATTERY_DIFF	3
+#define STABLE_LOW_BATTERY_DIFF_LOWBATT	1
+int _low_battery_alarm_(struct battery_data *battery)
+{
+	int overcurrent_limit_in_soc;
+	int current_soc = get_fuelgauge_value(FG_LEVEL);
+
+	if (battery->info.level <= STABLE_LOW_BATTERY_DIFF)
+		overcurrent_limit_in_soc = STABLE_LOW_BATTERY_DIFF_LOWBATT;
+	else
+		overcurrent_limit_in_soc = STABLE_LOW_BATTERY_DIFF;
+
+	if ((battery->info.level - current_soc) > overcurrent_limit_in_soc) {
+		pr_info("%s: Abnormal Current Consumption jump by %d units.\n",
+			__func__, ((battery->info.level - current_soc)));
+		pr_info("Last Reported SOC (%d).\n",
+				battery->info.level);
+
+		battery->is_low_batt_alarm = true;
+
+		if (battery->info.level > 0) {
+			queue_delayed_work(battery->sec_TA_workqueue,
+				&battery->fuelgauge_recovery_work, 0);
+			return 0;
+		}
+	}
+
+	if (!get_charger_status(battery)) {
+		pr_err("Set battery level as 0, power off.\n");
+		battery->info.level = 0;
+		wake_lock_timeout(&battery->vbus_wake_lock, HZ);
+		power_supply_changed(&battery->psy_battery);
+	}
+
+	return 0;
+}
+
+static void fuelgauge_work_handler(struct work_struct *work)
+{
+	struct battery_data *battery =
+		container_of(work, struct battery_data, fuelgauge_work.work);
+	pr_info("low battery alert!");
+	if (get_fuelgauge_value(FG_CHECK_STATUS))
+		_low_battery_alarm_(battery);
+}
+
+static void full_comp_work_handler(struct work_struct *work)
+{
+	struct battery_data *battery =
+		container_of(work, struct battery_data, full_comp_work.work);
+	int avg_current = get_fuelgauge_value(FG_CURRENT_AVG);
+
+	if (avg_current >= 25) {
+		cancel_delayed_work(&battery->full_comp_work);
+		schedule_delayed_work(&battery->full_comp_work, 100);
+	} else {
+		pr_info("%s: full charge compensation start (avg_current %d)\n",
+			__func__, avg_current);
+		fg_fullcharged_compensation(
+			battery->full_charge_comp_recharge_info, 0);
+	}
+}
+
+#define BATTERY_FULL_THRESHOLD_SOC	95	/* 95 / 1.333 = 71.27 */
+#if defined(P4_CHARGING_FEATURE_01)
+#define BATTERY_FULL_THRESHOLD_VFSOC	60	/* 60 * 1.333 = 79.98 */
+#else
+#define BATTERY_FULL_THRESHOLD_VFSOC	71	/* 71 * 1.333 = 94.64 */
+#endif
+
+static void fullcharging_work_handler(struct work_struct *work)
+{
+	struct battery_data *battery =
+		container_of(work, struct battery_data, fullcharging_work.work);
+	int check_charger_state = 1;
+	int fg_soc, fg_vfsoc;
+	pr_info("%s : nCHG intr!!, fullcharge_line=%d",
+		__func__,
+		gpio_get_value(battery->pdata->charger.fullcharge_line));
+
+	if (gpio_get_value(battery->pdata->charger.fullcharge_line) == 1) {
+#if defined(P2_CHARGING_FEATURE_02)
+		/* Check charger state */
+		if (battery->pdata->get_charging_state) {
+			if (battery->pdata->get_charging_state() == \
+						POWER_SUPPLY_STATUS_UNKNOWN) {
+				pr_info("Disconnect cable and check charger\n");
+				if (battery->pmic_cable_state == 0) {
+					battery->cable_detect_source = 2;
+					sec_get_cable_status(battery);
+					sec_cable_changed(battery);
+					check_charger_state = 0;
+				}
+			}
+		}
+#endif
+
+#if defined(P4_CHARGING_FEATURE_01)
+		fg_vfsoc = get_fuelgauge_value(FG_VF_SOC);
+		check_charger_state = battery->pdata->get_charger_is_full();
+		/* Check full charged state */
+		if (get_charger_status(battery) != 0
+			&& fg_vfsoc > BATTERY_FULL_THRESHOLD_VFSOC
+			&& check_charger_state == POWER_SUPPLY_STATUS_FULL) {
+			pr_info("Battery is full\n");
+			sec_cable_charging(battery);
+		}
+#else
+		fg_soc = get_fuelgauge_value(FG_LEVEL);
+		fg_vfsoc = get_fuelgauge_value(FG_VF_SOC);
+		/* Check full charged state */
+		if (get_charger_status(battery) != 0
+			&& fg_soc > BATTERY_FULL_THRESHOLD_SOC
+			&& fg_vfsoc > BATTERY_FULL_THRESHOLD_VFSOC
+			&& check_charger_state == 1) {
+			pr_info("Battery is full\n");
+			sec_cable_charging(battery);
+		}
+#endif
+	} else {
+		pr_info("Charger is working. Cable state will be updated.\n");
+		/* Cable detect from default */
+		battery->cable_detect_source = 0;
+	}
+
+	enable_irq(battery->charging_irq);
+}
+
+static int __devinit sec_bat_probe(struct platform_device *pdev)
+{
+	struct sec_battery_platform_data *pdata = dev_get_platdata(&pdev->dev);
+	struct battery_data *battery;
+	int ret;
+	unsigned long trigger;
+	int irq_num;
+
+	pr_info("%s : SEC Battery Driver Loading\n", __func__);
+
+	battery = kzalloc(sizeof(*battery), GFP_KERNEL);
+	if (!battery)
+		return -ENOMEM;
+
+	battery->pdata = pdata;
+	if (!battery->pdata) {
+		pr_err("%s : No platform data\n", __func__);
+		ret = -EINVAL;
+		goto err_pdata;
+	}
+
+	battery->pdata->init_charger_gpio();
+
+	platform_set_drvdata(pdev, battery);
+	debug_batterydata = battery;
+
+	battery->present = 1;
+	battery->info.level = 100;
+	battery->info.charging_source = CHARGER_BATTERY;
+	battery->info.batt_health = POWER_SUPPLY_HEALTH_GOOD;
+	battery->info.abstimer_is_active = 0;
+	battery->is_first_check = true;
+	battery->is_low_batt_alarm = false;
+
+	battery->psy_battery.name = "battery";
+	battery->psy_battery.type = POWER_SUPPLY_TYPE_BATTERY;
+	battery->psy_battery.properties = sec_battery_properties;
+	battery->psy_battery.num_properties = \
+					ARRAY_SIZE(sec_battery_properties);
+	battery->psy_battery.get_property = sec_bat_get_property;
+	battery->psy_battery.set_property = sec_bat_set_property;
+
+	battery->psy_usb.name = "usb";
+	battery->psy_usb.type = POWER_SUPPLY_TYPE_USB;
+	battery->psy_usb.supplied_to = supply_list;
+	battery->psy_usb.num_supplicants = ARRAY_SIZE(supply_list);
+	battery->psy_usb.properties = sec_power_properties;
+	battery->psy_usb.num_properties = ARRAY_SIZE(sec_power_properties);
+	battery->psy_usb.get_property = sec_usb_get_property;
+
+	battery->psy_ac.name = "ac";
+	battery->psy_ac.type = POWER_SUPPLY_TYPE_MAINS;
+	battery->psy_ac.supplied_to = supply_list;
+	battery->psy_ac.num_supplicants = ARRAY_SIZE(supply_list);
+	battery->psy_ac.properties = sec_power_properties;
+	battery->psy_ac.num_properties = ARRAY_SIZE(sec_power_properties);
+	battery->psy_ac.get_property = sec_ac_get_property;
+
+	mutex_init(&battery->work_lock);
+
+	wake_lock_init(&battery->vbus_wake_lock, WAKE_LOCK_SUSPEND,
+		"vbus wake lock");
+	wake_lock_init(&battery->work_wake_lock, WAKE_LOCK_SUSPEND,
+		"batt_work wake lock");
+	wake_lock_init(&battery->cable_wake_lock, WAKE_LOCK_SUSPEND,
+		"temp wake lock");
+	wake_lock_init(&battery->fullcharge_wake_lock, WAKE_LOCK_SUSPEND,
+		"fullcharge wake lock");
+#ifdef __TEST_DEVICE_DRIVER__
+	wake_lock_init(&battery->wake_lock_for_dev, WAKE_LOCK_SUSPEND,
+		"test mode wake lock");
+#endif /* __TEST_DEVICE_DRIVER__ */
+
+	INIT_WORK(&battery->battery_work, sec_bat_work);
+	INIT_WORK(&battery->cable_work, sec_cable_work);
+	INIT_DELAYED_WORK(&battery->fuelgauge_work, fuelgauge_work_handler);
+	INIT_DELAYED_WORK(&battery->fuelgauge_recovery_work,
+			fuelgauge_recovery_handler);
+	INIT_DELAYED_WORK(&battery->fullcharging_work,
+			fullcharging_work_handler);
+	INIT_DELAYED_WORK(&battery->full_comp_work, full_comp_work_handler);
+	INIT_DELAYED_WORK(&battery->TA_work, sec_TA_work_handler);
+
+	battery->sec_TA_workqueue = create_singlethread_workqueue(
+		"sec_TA_workqueue");
+	if (!battery->sec_TA_workqueue) {
+		pr_err("Failed to create single workqueue\n");
+		ret = -ENOMEM;
+		goto err_workqueue_init;
+	}
+
+	battery->padc = s3c_adc_register(pdev, NULL, NULL, 0);
+
+	battery->last_poll = alarm_get_elapsed_realtime();
+	alarm_init(&battery->alarm, ANDROID_ALARM_ELAPSED_REALTIME_WAKEUP,
+		sec_battery_alarm);
+
+	ret = power_supply_register(&pdev->dev, &battery->psy_battery);
+	if (ret) {
+		pr_err("Failed to register battery power supply.\n");
+		goto err_battery_psy_register;
+	}
+
+	ret = power_supply_register(&pdev->dev, &battery->psy_usb);
+	if (ret) {
+		pr_err("Failed to register USB power supply.\n");
+		goto err_usb_psy_register;
+	}
+
+	ret = power_supply_register(&pdev->dev, &battery->psy_ac);
+	if (ret) {
+		pr_err("Failed to register AC power supply.\n");
+		goto err_ac_psy_register;
+	}
+
+	/* create sec detail attributes */
+	sec_bat_create_attrs(battery->psy_battery.dev);
+
+#ifdef __TEST_DEVICE_DRIVER__
+	sec_batt_test_create_attrs(battery->psy_ac.dev);
+#endif /* __TEST_DEVICE_DRIVER__ */
+
+	battery->sec_battery_initial = 1;
+	battery->low_batt_boot_flag = 0;
+
+	/* Get initial cable status */
+	sec_get_cable_status(battery);
+	battery->previous_cable_status = battery->current_cable_status;
+	sec_cable_check_status(battery);
+
+	/* TA_nCHG irq */
+	battery->charging_irq = gpio_to_irq(pdata->charger.fullcharge_line);
+	trigger = IRQF_TRIGGER_RISING | IRQF_TRIGGER_FALLING;
+	if (request_threaded_irq
+	    (battery->charging_irq, NULL, sec_TA_nCHG_interrupt_handler,
+	     trigger, "TA_nCHG intr", battery)) {
+		pr_err("sec_TA_nCHG_interrupt_handler register failed!\n");
+		goto err_charger_irq;
+	}
+
+	/* TA_nConnected irq */
+	battery->connect_irq = gpio_to_irq(pdata->charger.connect_line);
+	trigger = IRQF_TRIGGER_RISING | IRQF_TRIGGER_FALLING;
+	if (request_threaded_irq
+	    (battery->connect_irq, NULL, sec_TA_nCon_interrupt_handler, trigger,
+	     "TA_nConnected intr", battery)) {
+		pr_err("sec_TA_nCon_interrupt_handler register failed!\n");
+		goto err_charger_irq;
+	}
+
+	if (enable_irq_wake(battery->connect_irq))
+		pr_err("TA_nConnected enable_irq_wake fail!\n");
+
+	if (check_ta_conn(battery) && check_UV_charging_case())
+		battery->low_batt_boot_flag = 1;
+
+	mutex_lock(&battery->work_lock);
+	fg_alert_init();
+	mutex_unlock(&battery->work_lock);
+
+	/* before enable fullcharge interrupt, check fullcharge */
+	if (((battery->info.charging_source == CHARGER_AC) ||
+		(battery->info.charging_source == CHARGER_MISC) ||
+		(battery->info.charging_source == CHARGER_DOCK))
+		&& battery->info.charging_enabled
+		&& gpio_get_value(pdata->charger.fullcharge_line) == 1)
+		sec_cable_charging(battery);
+
+	/* Request IRQ */
+	irq_num = gpio_to_irq(max17042_chip_data->pdata->fuel_alert_line);
+	if (request_threaded_irq(irq_num, NULL, low_battery_isr,
+				 IRQF_TRIGGER_FALLING, "FUEL_ALRT irq",
+				 battery))
+		pr_err("Can NOT request irq 'IRQ_FUEL_ALERT' %d ", irq_num);
+
+	if (enable_irq_wake(irq_num))
+		pr_err("FUEL_ALERT enable_irq_wake fail!\n");
+
+#ifdef CONFIG_SAMSUNG_LPM_MODE
+	lpm_mode_check(battery);
+#endif
+
+	return 0;
+
+err_charger_irq:
+	alarm_cancel(&battery->alarm);
+	power_supply_unregister(&battery->psy_ac);
+err_ac_psy_register:
+	power_supply_unregister(&battery->psy_usb);
+err_usb_psy_register:
+	power_supply_unregister(&battery->psy_battery);
+err_battery_psy_register:
+	destroy_workqueue(battery->sec_TA_workqueue);
+err_workqueue_init:
+	wake_lock_destroy(&battery->vbus_wake_lock);
+	wake_lock_destroy(&battery->work_wake_lock);
+	wake_lock_destroy(&battery->cable_wake_lock);
+	wake_lock_destroy(&battery->fullcharge_wake_lock);
+	mutex_destroy(&battery->work_lock);
+err_pdata:
+	kfree(battery);
+
+	return ret;
+}
+
+static int __devexit sec_bat_remove(struct platform_device *pdev)
+{
+	struct battery_data *battery = platform_get_drvdata(pdev);
+
+	free_irq(gpio_to_irq(max17042_chip_data->pdata->fuel_alert_line), NULL);
+	free_irq(gpio_to_irq(battery->pdata->charger.connect_line), NULL);
+
+	alarm_cancel(&battery->alarm);
+	power_supply_unregister(&battery->psy_ac);
+	power_supply_unregister(&battery->psy_usb);
+	power_supply_unregister(&battery->psy_battery);
+
+	destroy_workqueue(battery->sec_TA_workqueue);
+	cancel_delayed_work(&battery->fuelgauge_work);
+	cancel_delayed_work(&battery->fuelgauge_recovery_work);
+	cancel_delayed_work(&battery->fullcharging_work);
+	cancel_delayed_work(&battery->full_comp_work);
+
+	wake_lock_destroy(&battery->vbus_wake_lock);
+	wake_lock_destroy(&battery->work_wake_lock);
+	wake_lock_destroy(&battery->cable_wake_lock);
+	wake_lock_destroy(&battery->fullcharge_wake_lock);
+	mutex_destroy(&battery->work_lock);
+
+	kfree(battery);
+
+	return 0;
+}
+
+static const struct dev_pm_ops sec_battery_pm_ops = {
+	.prepare = sec_bat_suspend,
+	.complete = sec_bat_resume,
+};
+
+static struct platform_driver sec_bat_driver = {
+	.driver = {
+		.name = "sec-battery",
+		.owner  = THIS_MODULE,
+		.pm = &sec_battery_pm_ops,
+	},
+	.probe		= sec_bat_probe,
+	.remove		= __devexit_p(sec_bat_remove),
+};
+
+static int __init sec_bat_init(void)
+{
+	return platform_driver_register(&sec_bat_driver);
+}
+
+static void __exit sec_bat_exit(void)
+{
+	platform_driver_unregister(&sec_bat_driver);
+}
+
+late_initcall(sec_bat_init);
+module_exit(sec_bat_exit);
+
+MODULE_DESCRIPTION("battery driver");
+MODULE_LICENSE("GPL");
+
diff --git a/drivers/power/sec_battery_u1.c b/drivers/power/sec_battery_u1.c
new file mode 100644
index 0000000..a442251
--- /dev/null
+++ b/drivers/power/sec_battery_u1.c
@@ -0,0 +1,3442 @@
+/*
+ *  sec_battery.c
+ *  Samsung Mobile Battery Driver
+ *
+ *  Copyright (C) 2010 Samsung Electronics
+ *
+ *  <ms925.kim@samsung.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/delay.h>
+#include <linux/err.h>
+#include <linux/init.h>
+#include <linux/interrupt.h>
+#include <linux/io.h>
+#include <linux/jiffies.h>
+#include <linux/platform_device.h>
+#include <linux/power_supply.h>
+#include <linux/slab.h>
+#include <linux/wakelock.h>
+#include <linux/workqueue.h>
+#include <linux/proc_fs.h>
+#include <linux/android_alarm.h>
+#include <plat/adc.h>
+#include <linux/power/sec_battery_u1.h>
+
+#if defined(CONFIG_TARGET_LOCALE_NA) || defined(CONFIG_TARGET_LOCALE_NAATT)
+#define POLLING_INTERVAL	(10 * 1000)
+#else
+#define POLLING_INTERVAL	(40 * 1000)
+#endif				/* CONFIG_TARGET_LOCALE_NA */
+
+#ifdef SEC_BATTERY_INDEPEDENT_VF_CHECK
+#if defined(CONFIG_TARGET_LOCALE_NAATT)
+#define VF_CHECK_INTERVAL	(5 * 1000)
+
+#define	MAX_VF	1800
+#define	MIN_VF	1100
+#define	VF_COUNT	1
+#elif defined(CONFIG_MACH_Q1_BD)
+#define VF_CHECK_INTERVAL	(5 * 1000)
+#define	MAX_VF_ADC	2500
+#define	MIN_VF_ADC	1800
+#define	ADC_CH_VF	1
+#else
+#define VF_CHECK_INTERVAL	(10 * 1000)
+#endif
+#endif
+#define FULL_CHARGING_TIME	(6 * 60 *  60 * HZ)	/* 6hr */
+#ifdef CONFIG_TARGET_LOCALE_NA
+#define RECHARGING_TIME		(2 * 60 * 60 * HZ)	/* 2hr */
+#else
+#define RECHARGING_TIME		(90 * 60 * HZ)	/* 1.5hr */
+#endif
+#define RESETTING_CHG_TIME	(10 * 60 * HZ)	/* 10Min */
+#if defined(CONFIG_TARGET_LOCALE_NAATT)
+#define EVENT_OVER_TIME		(10 * 60 * HZ)	/* 10Min */
+#endif
+#ifdef CONFIG_TARGET_LOCALE_NA
+#define BAT_USE_TIMER_EXPIRE	(10 * 60 * HZ)	/* 10 min */
+#endif
+
+#if defined(CONFIG_TARGET_LOCALE_NA) || defined(CONFIG_MACH_Q1_BD)
+#define RECHARGING_VOLTAGE	(4130 * 1000)	/* 4.13 V */
+#else
+#define RECHARGING_VOLTAGE	(4150 * 1000)	/* 4.15 V */
+#endif
+
+#ifdef CONFIG_TARGET_LOCALE_NA
+#define RECHARGING_CND_COUNT    2
+#endif
+
+#define FG_T_SOC		0
+#define FG_T_VCELL		1
+#define FG_T_TEMPER		2
+#define FG_T_PSOC		3
+#define FG_T_VFOCV		4
+#define FG_T_AVGVCELL	5
+
+#define ADC_SAMPLING_CNT	7
+#if defined(CONFIG_MACH_Q1_BD)
+#define ADC_CH_CHGCURRENT	0
+#else
+#define ADC_CH_CHGCURRENT	1
+#endif
+#define ADC_TOTAL_COUNT		5
+
+#if defined(CONFIG_TARGET_LOCALE_NAATT)
+#define OFFSET_VIDEO_PLAY	(0x1 << 0)
+#define OFFSET_MP3_PLAY	(0x1 << 1)
+#define OFFSET_VOICE_CALL_2G	(0x1 << 2)
+#define OFFSET_VOICE_CALL_3G	(0x1 << 3)
+#define OFFSET_DATA_CALL	(0x1 << 4)
+#define OFFSET_WIFI	(0x1 << 5)
+#define OFFSET_GPS	(0x1 << 6)
+#define OFFSET_CAMERA_ON	(0x1 << 7)
+#define OFFSET_RECORDING_ON	(0x1 << 8)
+#endif
+
+/* put off current during charging*/
+#ifdef CONFIG_TARGET_LOCALE_NA
+#define USE_CALL			(0x1 << 0)
+#define USE_VIDEO			(0x1 << 1)
+#define USE_MUSIC			(0x1 << 2)
+#define USE_BROWSER			(0x1 << 3)
+#define USE_HOTSPOT			(0x1 << 4)
+#define	USE_CAMERA			(0x1 << 5)
+#define USE_DATA_CALL			(0x1 << 6)
+#define USE_WIMAX			(0x1 << 7)
+#endif
+
+#ifdef CONFIG_TARGET_LOCALE_NA
+#ifdef CONFIG_MACH_U1_NA_SPR_EPIC2_REV00
+#define EVENT_BLOCK_TEMP_ADC	       755
+#define HIGH_BLOCK_TEMP_ADC            715
+#define LOW_BLOCK_TEMP_ADC             521
+#define HIGH_RECOVER_TEMP_ADC          714
+#define LOW_RECOVER_TEMP_ADC           522
+
+#define HIGH_BLOCK_TEMP_ADC_LPM        715
+#define LOW_BLOCK_TEMP_ADC_LPM         521
+#define HIGH_RECOVER_TEMP_ADC_LPM      714
+#define LOW_RECOVER_TEMP_ADC_LPM       522
+#else
+#define EVENT_BLOCK_TEMP_ADC           777
+#define HIGH_BLOCK_TEMP_ADC            729
+#define LOW_BLOCK_TEMP_ADC             502
+#define HIGH_RECOVER_TEMP_ADC          699
+#define LOW_RECOVER_TEMP_ADC           516
+
+#define HIGH_BLOCK_TEMP_ADC_LPM        710
+#define LOW_BLOCK_TEMP_ADC_LPM         506
+#define HIGH_RECOVER_TEMP_ADC_LPM      702
+#define LOW_RECOVER_TEMP_ADC_LPM       512
+#endif
+#elif defined(CONFIG_TARGET_LOCALE_NAATT)
+#define EVENT_BLOCK_TEMP			620
+#define HIGH_BLOCK_TEMP			490
+#define LOW_BLOCK_TEMP			(-30)
+
+#define EVENT_RECOVER_TEMP		430
+#define HIGH_RECOVER_TEMP		430
+#define LOW_RECOVER_TEMP		0
+#elif defined(CONFIG_MACH_Q1_BD)
+#define HIGH_BLOCK_TEMP			650
+#define LOW_BLOCK_TEMP			(-50)
+#define HIGH_RECOVER_TEMP		430
+#define LOW_RECOVER_TEMP		0
+#else
+#define HIGH_BLOCK_TEMP			650
+#define LOW_BLOCK_TEMP			(-30)
+#define HIGH_RECOVER_TEMP		430
+#define LOW_RECOVER_TEMP		0
+#endif
+
+#if defined(CONFIG_TARGET_LOCALE_NAATT)
+#define HIGH_DEC_CURR_TEMP			410
+#define HIGH_INC_CURR_TEMP			380
+#endif
+
+#ifdef CONFIG_TARGET_LOCALE_NA
+#if defined(CONFIG_MACH_U1_NA_SPR_EPIC2_REV00)
+#define CURRENT_OF_FULL_CHG                     1
+#else
+#define CURRENT_OF_FULL_CHG			350
+#endif				/* CONFIG_MACH_U1_NA_SPR_EPIC2_REV00 */
+#elif defined(CONFIG_MACH_Q1_BD)
+#ifdef SEC_BATTERY_1ST_2ND_TOPOFF
+#if 0
+#define CURRENT_1ST_FULL_CHG		1000	/* 360mA */
+#define CURRENT_2ND_FULL_CHG		650	/* 220mA */
+#endif
+#define CURRENT_1ST_FULL_CHG		580		/* 190mA */
+#define CURRENT_2ND_FULL_CHG		540		/* 170mA */
+#else
+#define CURRENT_OF_FULL_CHG			850
+#endif
+#else
+#define CURRENT_OF_FULL_CHG			520
+#endif
+
+#define TEMP_BLOCK_COUNT			3
+#ifdef SEC_BATTERY_INDEPEDENT_VF_CHECK
+#define BAT_DET_COUNT				0
+#else
+#define BAT_DET_COUNT				1
+#endif
+
+#ifdef CONFIG_TARGET_LOCALE_NA
+#define FULL_CHG_COND_COUNT			2
+#else
+#define FULL_CHG_COND_COUNT			3
+#endif
+
+#ifdef CONFIG_TARGET_LOCALE_NA
+#define FULL_CHARGE_COND_VOLTAGE    (4000 * 1000)	/* 4.00 V */
+#else
+#define FULL_CHARGE_COND_VOLTAGE    (4150 * 1000)	/* 4.15 V */
+#endif
+#define INIT_CHECK_COUNT	4
+
+#ifdef CONFIG_TARGET_LOCALE_NA
+#define SPRINT_SLATE_TEST
+#endif
+
+enum tmu_status_t {
+	TMU_STATUS_NORMAL = 0,
+	TMU_STATUS_TRIPPED,
+	TMU_STATUS_THROTTLED,
+	TMU_STATUS_WARNING,
+};
+
+enum cable_type_t {
+	CABLE_TYPE_NONE = 0,
+	CABLE_TYPE_USB,
+	CABLE_TYPE_AC,
+	CABLE_TYPE_MISC,
+};
+
+enum batt_full_t {
+	BATT_NOT_FULL = 0,
+	BATT_FULL,
+};
+
+enum {
+	BAT_NOT_DETECTED,
+	BAT_DETECTED
+};
+
+#if defined(CONFIG_TARGET_LOCALE_NAATT)
+enum batt_temp_extra {
+	BATT_TEMP_EXT_NONE = 0,
+	BATT_TEMP_EXT_CAMCORDING_NORMAL,
+	BATT_TEMP_EXT_CAMCORDING_HIGH,
+};
+#endif
+
+static ssize_t sec_bat_show_property(struct device *dev,
+				     struct device_attribute *attr, char *buf);
+
+static ssize_t sec_bat_store(struct device *dev,
+			     struct device_attribute *attr,
+			     const char *buf, size_t count);
+
+struct adc_sample {
+	int average_adc;
+	int adc_arr[ADC_TOTAL_COUNT];
+	int index;
+};
+
+struct sec_bat_info {
+	struct device *dev;
+
+	char *fuel_gauge_name;
+	char *charger_name;
+	char *sub_charger_name;
+
+	unsigned int adc_arr_size;
+	struct sec_bat_adc_table_data *adc_table;
+	unsigned int adc_channel;
+	struct adc_sample temper_adc_sample;
+#if defined(CONFIG_TARGET_LOCALE_NAATT)
+	int vf_adc_channel;
+#endif
+
+	struct power_supply psy_bat;
+	struct power_supply psy_usb;
+	struct power_supply psy_ac;
+
+	struct wake_lock vbus_wake_lock;
+	struct wake_lock monitor_wake_lock;
+	struct wake_lock cable_wake_lock;
+
+	enum cable_type_t cable_type;
+	enum batt_full_t batt_full_status;
+
+	unsigned int batt_temp;	/* Battery Temperature (C) */
+	int batt_temp_high_cnt;
+	int batt_temp_low_cnt;
+	int batt_temp_recover_cnt;
+#if defined(CONFIG_TARGET_LOCALE_NAATT)
+	enum batt_temp_extra batt_temp_ext;
+	enum batt_temp_extra batt_temp_ext_pre;
+#endif
+	unsigned int batt_health;
+	unsigned int batt_vcell;
+	unsigned int batt_vfocv;
+	unsigned int batt_soc;
+	unsigned int batt_raw_soc;
+	unsigned int polling_interval;
+	int charging_status;
+	int charging_int_full_count;
+	int charging_adc_full_count;
+#ifdef CONFIG_TARGET_LOCALE_NA
+	int recharging_int_threshold_count;
+#endif
+
+	unsigned int batt_temp_adc;
+#ifdef CONFIG_TARGET_LOCALE_NA
+	unsigned int batt_temp_radc;
+#endif
+	unsigned int batt_current_adc;
+#if defined(CONFIG_TARGET_LOCALE_NAATT)
+	int batt_vf_adc;
+	int batt_event_status;
+	unsigned long event_end_time;
+#elif defined(CONFIG_TARGET_LOCALE_NA)
+	int use_call;
+	int use_video;
+	int use_music;
+	int use_browser;
+	int use_hotspot;
+	int use_camera;
+	int use_data_call;
+	int use_wimax;
+	int batt_event_status;
+	unsigned long event_expired_time;
+#endif
+	struct s3c_adc_client *padc;
+
+	struct workqueue_struct *monitor_wqueue;
+	struct work_struct monitor_work;
+	struct work_struct cable_work;
+	struct delayed_work polling_work;
+
+	unsigned long charging_start_time;
+	unsigned long charging_passed_time;
+	unsigned long charging_next_time;
+	unsigned int recharging_status;
+	unsigned int batt_lpm_state;
+#ifdef SPRINT_SLATE_TEST
+	bool slate_test_mode;
+#endif
+
+	struct mutex adclock;
+
+	unsigned int (*get_lpcharging_state) (void);
+	int present;
+	int present_count;
+	bool use_sub_charger;
+
+	int test_value;
+	int initial_check_count;
+	struct proc_dir_entry *entry;
+
+#ifdef SEC_BATTERY_INDEPEDENT_VF_CHECK
+	unsigned int vf_check_interval;
+	struct delayed_work vf_check_work;
+#endif
+	int batt_tmu_status;
+};
+
+static char *supply_list[] = {
+	"battery",
+};
+
+static enum power_supply_property sec_battery_props[] = {
+	POWER_SUPPLY_PROP_STATUS,
+	POWER_SUPPLY_PROP_HEALTH,
+	POWER_SUPPLY_PROP_PRESENT,
+	POWER_SUPPLY_PROP_ONLINE,
+	POWER_SUPPLY_PROP_TECHNOLOGY,
+	POWER_SUPPLY_PROP_VOLTAGE_NOW,
+	POWER_SUPPLY_PROP_CAPACITY,
+	POWER_SUPPLY_PROP_TEMP,
+	POWER_SUPPLY_PROP_CURRENT_AVG,
+};
+
+static enum power_supply_property sec_power_props[] = {
+	POWER_SUPPLY_PROP_ONLINE,
+};
+
+#ifdef CONFIG_TARGET_LOCALE_NA
+static struct sec_bat_info *pchg;
+#endif
+
+struct power_supply *get_power_supply_by_name(char *name)
+{
+	if (!name)
+		return (struct power_supply *)NULL;
+	else
+		return power_supply_get_by_name(name);
+}
+
+static int sec_bat_enable_charging(struct sec_bat_info *info, bool enable);
+
+static int calculate_average_adc(struct sec_bat_info *info,
+				 struct adc_sample *sample, int adc)
+{
+	int i, total_adc = 0;
+	int average_adc = sample->average_adc;
+	int index = sample->index;
+
+	if (adc < 0 || adc == 0) {
+		dev_err(info->dev, "%s: invalid adc : %d\n", __func__, adc);
+		return 0;
+	}
+
+	if (!average_adc) {
+		average_adc = adc;
+		for (i = 0; i < ADC_TOTAL_COUNT; i++)
+			sample->adc_arr[i] = adc;
+	} else {
+		sample->index = ++index >= ADC_TOTAL_COUNT ? 0 : index;
+		sample->adc_arr[sample->index] = adc;
+		for (i = 0; i < ADC_TOTAL_COUNT; i++)
+			total_adc += sample->adc_arr[i];
+
+		average_adc = total_adc / ADC_TOTAL_COUNT;
+	}
+
+	sample->average_adc = average_adc;
+	dev_dbg(info->dev, "%s: i(%d) adc=%d, avg_adc=%d\n", __func__,
+		sample->index, adc, average_adc);
+
+	return average_adc;
+}
+
+static int sec_bat_get_fuelgauge_data(struct sec_bat_info *info, int type)
+{
+	struct power_supply *psy
+	    = get_power_supply_by_name(info->fuel_gauge_name);
+	union power_supply_propval value;
+
+	if (!psy) {
+		dev_err(info->dev, "%s: fail to get fuel gauge ps\n", __func__);
+		return -ENODEV;
+	}
+
+	switch (type) {
+	case FG_T_VCELL:
+		value.intval = 0;	/*vcell */
+		psy->get_property(psy, POWER_SUPPLY_PROP_VOLTAGE_NOW, &value);
+		break;
+	case FG_T_VFOCV:
+		value.intval = 1;	/*vfocv */
+		psy->get_property(psy, POWER_SUPPLY_PROP_VOLTAGE_NOW, &value);
+		break;
+	case FG_T_AVGVCELL:
+		psy->get_property(psy, POWER_SUPPLY_PROP_VOLTAGE_AVG, &value);
+		break;
+	case FG_T_SOC:
+		value.intval = 0;	/*normal soc */
+		psy->get_property(psy, POWER_SUPPLY_PROP_CAPACITY, &value);
+		break;
+	case FG_T_PSOC:
+		value.intval = 1;	/*raw soc */
+		psy->get_property(psy, POWER_SUPPLY_PROP_CAPACITY, &value);
+		break;
+	case FG_T_TEMPER:
+		psy->get_property(psy, POWER_SUPPLY_PROP_TEMP, &value);
+		break;
+	default:
+		return -ENODEV;
+	}
+
+	return value.intval;
+}
+
+static int sec_bat_get_property(struct power_supply *ps,
+				enum power_supply_property psp,
+				union power_supply_propval *val)
+{
+	struct sec_bat_info *info = container_of(ps, struct sec_bat_info,
+						 psy_bat);
+
+	switch (psp) {
+	case POWER_SUPPLY_PROP_STATUS:
+		val->intval = info->charging_status;
+		break;
+	case POWER_SUPPLY_PROP_HEALTH:
+		val->intval = info->batt_health;
+		break;
+	case POWER_SUPPLY_PROP_PRESENT:
+		val->intval = 1;
+		break;
+	case POWER_SUPPLY_PROP_TEMP:
+		val->intval = info->batt_temp;
+		break;
+	case POWER_SUPPLY_PROP_ONLINE:
+		/* battery is always online */
+		/* val->intval = 1; */
+		val->intval = info->cable_type;
+		break;
+	case POWER_SUPPLY_PROP_VOLTAGE_NOW:
+		val->intval = info->batt_vcell;
+		if (val->intval == -1)
+			return -EINVAL;
+		break;
+	case POWER_SUPPLY_PROP_CAPACITY:
+#ifdef CONFIG_TARGET_LOCALE_NA
+		if (info->charging_status != POWER_SUPPLY_STATUS_FULL
+		    && info->batt_soc == 100) {
+			val->intval = 99;
+			break;
+		}
+#endif				/*CONFIG_TARGET_LOCALE_NA */
+
+		if (info->charging_status == POWER_SUPPLY_STATUS_FULL) {
+			val->intval = 100;
+			break;
+		}
+		val->intval = info->batt_soc;
+		if (val->intval == -1)
+			return -EINVAL;
+		break;
+	case POWER_SUPPLY_PROP_TECHNOLOGY:
+		val->intval = POWER_SUPPLY_TECHNOLOGY_LION;
+		break;
+	case POWER_SUPPLY_PROP_CURRENT_AVG:
+		val->intval = -1;
+		break;
+	default:
+		return -EINVAL;
+	}
+	return 0;
+}
+
+static void sec_bat_handle_charger_topoff(struct sec_bat_info *info)
+{
+#ifdef SEC_BATTERY_1ST_2ND_TOPOFF
+	if (info->charging_status != POWER_SUPPLY_STATUS_FULL) {
+		/* 1st top-off */
+		info->charging_status = POWER_SUPPLY_STATUS_FULL;
+
+		dev_info(info->dev, "%s: Charging 1st Top-off\n", __func__);
+	} else {
+		/* 2nd top-off, recharging top-off */
+		if (!sec_bat_enable_charging(info, false)) {
+			info->batt_full_status = BATT_FULL;
+			info->recharging_status = false;
+		}
+
+		dev_info(info->dev, "%s: Charging 2nd Top-off\n", __func__);
+	}
+#else
+	if (!sec_bat_enable_charging(info, false)) {
+		info->charging_status = POWER_SUPPLY_STATUS_FULL;
+		info->batt_full_status = BATT_FULL;
+		info->recharging_status = false;
+
+		dev_info(info->dev, "%s: Charging Top-off\n", __func__);
+	}
+#endif
+}
+
+static int sec_bat_set_property(struct power_supply *ps,
+				enum power_supply_property psp,
+				const union power_supply_propval *val)
+{
+	struct sec_bat_info *info = container_of(ps, struct sec_bat_info,
+						 psy_bat);
+	struct power_supply *psy = get_power_supply_by_name(info->charger_name);
+	union power_supply_propval value;
+
+	if (!psy) {
+		dev_err(info->dev, "%s: fail to get %s ps\n",
+			__func__, info->charger_name);
+		return -EINVAL;
+	}
+
+	switch (psp) {
+	case POWER_SUPPLY_PROP_STATUS:
+		dev_info(info->dev, "%s: topoff intr\n", __func__);
+		if (val->intval != POWER_SUPPLY_STATUS_FULL)
+			return -EINVAL;
+
+		if (info->use_sub_charger) {
+#if !defined(CONFIG_MACH_Q1_BD)
+			if (info->cable_type == CABLE_TYPE_USB ||
+			    info->cable_type == CABLE_TYPE_MISC)
+#endif
+				sec_bat_handle_charger_topoff(info);
+			break;
+		}
+
+		if (info->batt_full_status == BATT_NOT_FULL) {
+			info->recharging_status = false;
+			info->batt_full_status = BATT_FULL;
+			info->charging_status = POWER_SUPPLY_STATUS_FULL;
+
+			info->charging_start_time = 0;
+			info->charging_passed_time = 0;
+			info->charging_next_time = 0;
+
+			/* disable charging */
+			value.intval = POWER_SUPPLY_STATUS_DISCHARGING;
+			psy->set_property(psy, POWER_SUPPLY_PROP_STATUS,
+					  &value);
+		}
+#if 0				/* for reference */
+		if (info->batt_full_status == BATT_NOT_FULL) {
+			info->batt_full_status = BATT_1ST_FULL;
+			info->charging_status = POWER_SUPPLY_STATUS_FULL;
+			/* TODO: set topoff current 60mA */
+			value.intval = 120;
+			psy->set_property(psy, POWER_SUPPLY_PROP_CHARGE_FULL,
+					  &value);
+		} else {
+			info->batt_full_status = BATT_2ND_FULL;
+			info->recharging_status = false;
+			/* disable charging */
+			value.intval = POWER_SUPPLY_STATUS_DISCHARGING;
+			psy->set_property(psy, POWER_SUPPLY_PROP_STATUS,
+					  &value);
+		}
+#endif
+		break;
+	case POWER_SUPPLY_PROP_CAPACITY:
+		dev_info(info->dev, "%s: refresh battery data\n", __func__);
+		wake_lock(&info->monitor_wake_lock);
+		queue_work(info->monitor_wqueue, &info->monitor_work);
+
+		break;
+	case POWER_SUPPLY_PROP_CAPACITY_LEVEL:
+		/* TODO: lowbatt interrupt: called by fuel gauge */
+		dev_info(info->dev, "%s: lowbatt intr\n", __func__);
+		if (val->intval != POWER_SUPPLY_CAPACITY_LEVEL_CRITICAL)
+			return -EINVAL;
+		wake_lock(&info->monitor_wake_lock);
+		queue_work(info->monitor_wqueue, &info->monitor_work);
+
+		break;
+	case POWER_SUPPLY_PROP_ONLINE:
+		/* cable is attached or detached. called by USB switch(MUIC) */
+		dev_info(info->dev, "%s: cable was changed(%d)\n", __func__,
+			 val->intval);
+		switch (val->intval) {
+		case POWER_SUPPLY_TYPE_BATTERY:
+			info->cable_type = CABLE_TYPE_NONE;
+			break;
+		case POWER_SUPPLY_TYPE_MAINS:
+			info->cable_type = CABLE_TYPE_AC;
+			break;
+		case POWER_SUPPLY_TYPE_USB:
+			info->cable_type = CABLE_TYPE_USB;
+			break;
+		case POWER_SUPPLY_TYPE_MISC:
+			info->cable_type = CABLE_TYPE_MISC;
+			break;
+		default:
+			return -EINVAL;
+		}
+		wake_lock(&info->cable_wake_lock);
+		queue_work(info->monitor_wqueue, &info->cable_work);
+		break;
+	case POWER_SUPPLY_PROP_HEALTH:
+		/* call by TMU driver
+		 * alarm for abnormal temperature increasement
+		 */
+		info->batt_tmu_status = val->intval;
+
+		wake_lock(&info->monitor_wake_lock);
+		queue_work(info->monitor_wqueue, &info->monitor_work);
+
+		dev_info(info->dev, "%s: TMU status has been changed(%d)\n",
+			 __func__, info->batt_tmu_status);
+
+		break;
+	default:
+		return -EINVAL;
+	}
+	return 0;
+}
+
+static int sec_usb_get_property(struct power_supply *ps,
+				enum power_supply_property psp,
+				union power_supply_propval *val)
+{
+	struct sec_bat_info *info = container_of(ps, struct sec_bat_info,
+						 psy_usb);
+
+	if (psp != POWER_SUPPLY_PROP_ONLINE)
+		return -EINVAL;
+
+	/* Set enable=1 only if the USB charger is connected */
+	val->intval = (info->cable_type == CABLE_TYPE_USB);
+
+	return 0;
+}
+
+static int sec_ac_get_property(struct power_supply *ps,
+			       enum power_supply_property psp,
+			       union power_supply_propval *val)
+{
+	struct sec_bat_info *info = container_of(ps, struct sec_bat_info,
+						 psy_ac);
+
+	if (psp != POWER_SUPPLY_PROP_ONLINE)
+		return -EINVAL;
+
+	/* Set enable=1 only if the AC charger is connected */
+	val->intval = (info->cable_type == CABLE_TYPE_AC) ||
+	    (info->cable_type == CABLE_TYPE_MISC);
+
+	return 0;
+}
+
+static int sec_bat_get_adc_data(struct sec_bat_info *info, int adc_ch)
+{
+	int adc_data;
+	int adc_max = 0;
+	int adc_min = 0;
+	int adc_total = 0;
+	int i;
+	int err_value;
+
+	for (i = 0; i < ADC_SAMPLING_CNT; i++) {
+		adc_data = s3c_adc_read(info->padc, adc_ch);
+		if (adc_data < 0) {
+			dev_err(info->dev, "%s : err(%d) returned, skip read\n",
+				__func__, adc_data);
+			err_value = adc_data;
+			goto err;
+		}
+
+		if (i != 0) {
+			if (adc_data > adc_max)
+				adc_max = adc_data;
+			else if (adc_data < adc_min)
+				adc_min = adc_data;
+		} else {
+			adc_max = adc_data;
+			adc_min = adc_data;
+		}
+		adc_total += adc_data;
+	}
+
+	return (adc_total - adc_max - adc_min) / (ADC_SAMPLING_CNT - 2);
+ err:
+	return err_value;
+}
+
+#ifdef CONFIG_TARGET_LOCALE_NA
+static inline int s3c_read_temper_adc(struct sec_bat_info *info)
+{
+	int adc;
+
+	mutex_lock(&info->adclock);
+	adc = sec_bat_get_adc_data(info, info->adc_channel);
+	mutex_unlock(&info->adclock);
+	if (adc <= 0)
+		adc = info->batt_temp_adc;
+
+	info->batt_temp_adc =
+	    calculate_average_adc(info, &info->temper_adc_sample, adc);
+
+	return info->batt_temp_adc;
+}
+#else
+static inline int s3c_read_temper_adc(struct sec_bat_info *info)
+{
+	int adc;
+
+	mutex_lock(&info->adclock);
+	adc = sec_bat_get_adc_data(info, info->adc_channel);
+	mutex_unlock(&info->adclock);
+	if (adc <= 0)
+		adc = info->batt_temp_adc;
+	info->batt_temp_adc = adc;
+
+	return adc;
+}
+#endif
+
+#if defined(CONFIG_TARGET_LOCALE_NAATT)
+static int is_event_end_timer_running(struct sec_bat_info *info)
+{
+	unsigned long passed_time = 0;
+
+	if (info->event_end_time == 0xFFFFFFFF)	/*initial value */
+		return false;
+
+	if (jiffies >= info->event_end_time)
+		passed_time = jiffies - info->event_end_time;
+	else
+		passed_time = 0xFFFFFFFF - info->event_end_time + jiffies;
+
+	if (time_after(passed_time, (unsigned long)EVENT_OVER_TIME)) {
+		info->event_end_time = 0xFFFFFFFF;
+		dev_info(info->dev, "%s: Event timer is over 10 min\n",
+			 __func__);
+		return false;
+	} else {
+		dev_info(info->dev, "%s: Event timer is running(%u s)\n",
+			 __func__, jiffies_to_msecs(passed_time) / 1000);
+		return true;
+	}
+
+	return false;
+}
+
+static int get_recording_state(struct sec_bat_info *info)
+{
+	return info->batt_event_status & OFFSET_RECORDING_ON;
+}
+#endif
+
+#ifdef CONFIG_TARGET_LOCALE_NA
+static int is_event_end_timer_running(struct sec_bat_info *info)
+{
+	unsigned long passed_time = 0;
+
+	if (info->event_expired_time == 0xFFFFFFFF)	/*initial value */
+		return false;
+
+	if (jiffies >= info->event_expired_time)
+		passed_time = jiffies - info->event_expired_time;
+	else
+		passed_time = 0xFFFFFFFF - info->event_expired_time + jiffies;
+
+	if (time_after(passed_time, (unsigned long)BAT_USE_TIMER_EXPIRE)) {
+		info->event_expired_time = 0xFFFFFFFF;
+		dev_info(info->dev, "[SPR_NA] %s: Event timer is over 10 min\n",
+			 __func__);
+		return false;
+	} else {
+		dev_info(info->dev,
+			 "[SPR_NA] %s: Event timer is running(%u s)\n",
+			 __func__, jiffies_to_msecs(passed_time) / 1000);
+		return true;
+	}
+
+	return false;
+}
+
+static unsigned long sec_rescale_temp_adc(struct sec_bat_info *info)
+{
+	int adc_tmp = info->batt_temp_adc;
+	int adc_tmp1 = 0;
+	int adc_tmp2 = 0;
+
+	adc_tmp1 = adc_tmp * 10;
+	adc_tmp2 = (40950 - adc_tmp1);
+	adc_tmp = adc_tmp2 / 50;
+	if ((adc_tmp2 % 10) >= 5)
+		adc_tmp += 1;
+
+	info->batt_temp_radc = adc_tmp;
+
+	dev_dbg(info->dev, "deb***: [battery] bat temper : %d, rescale : %d\n",
+	       info->batt_temp_adc, adc_tmp);
+
+	return adc_tmp;
+}
+#endif
+
+#ifdef CONFIG_TARGET_LOCALE_NA
+static int sec_bat_check_temper(struct sec_bat_info *info)
+{
+	struct power_supply *psy
+	    = get_power_supply_by_name(info->fuel_gauge_name);
+	union power_supply_propval value;
+	int ret;
+
+	int temp;
+	int temp_adc = s3c_read_temper_adc(info);
+	int temp_radc = sec_rescale_temp_adc(info);
+	int health = info->batt_health;
+	int low = 0;
+	int high = 0;
+	int mid = 0;
+
+	/*calculate_average_adc(info, &info->temper_adc_sample, temp_adc);*/
+
+	if (!info->adc_table || !info->adc_arr_size) {
+		/* using fake temp */
+		temp = 300;
+		info->batt_temp = temp;
+		return temp;
+	}
+	high = info->adc_arr_size - 1;
+
+	while (low <= high) {
+		mid = (low + high) / 2;
+		if (info->adc_table[mid].adc > temp_adc)
+			high = mid - 1;
+		else if (info->adc_table[mid].adc < temp_adc)
+			low = mid + 1;
+		else
+			break;
+	}
+	temp = info->adc_table[mid].temperature;
+
+	info->batt_temp = temp;
+
+	if (info->get_lpcharging_state) {
+		if (info->get_lpcharging_state()) {
+			if (temp_radc >= HIGH_BLOCK_TEMP_ADC_LPM) {
+				if (health != POWER_SUPPLY_HEALTH_OVERHEAT &&
+				    health !=
+				    POWER_SUPPLY_HEALTH_UNSPEC_FAILURE)
+					if (info->batt_temp_high_cnt <
+					    TEMP_BLOCK_COUNT)
+						info->batt_temp_high_cnt++;
+				dev_info(info->dev, "%s: high count = %d\n",
+					 __func__, info->batt_temp_high_cnt);
+			} else if (temp_radc <= HIGH_RECOVER_TEMP_ADC_LPM &&
+				   temp_radc >= LOW_RECOVER_TEMP_ADC_LPM) {
+				if (health == POWER_SUPPLY_HEALTH_OVERHEAT ||
+				    health == POWER_SUPPLY_HEALTH_COLD) {
+					info->batt_temp_high_cnt = 0;
+					info->batt_temp_low_cnt = 0;
+
+					if (info->batt_temp_recover_cnt <
+					    TEMP_BLOCK_COUNT)
+						info->batt_temp_recover_cnt++;
+					dev_info(info->dev,
+						 "%s: recovery count = %d\n",
+						 __func__,
+						 info->batt_temp_recover_cnt);
+				}
+			} else if (temp_radc <= LOW_BLOCK_TEMP_ADC_LPM) {
+				if (health != POWER_SUPPLY_HEALTH_COLD &&
+				    health !=
+				    POWER_SUPPLY_HEALTH_UNSPEC_FAILURE)
+					if (info->batt_temp_low_cnt <
+					    TEMP_BLOCK_COUNT)
+						info->batt_temp_low_cnt++;
+				dev_info(info->dev, "%s: low count = %d\n",
+					 __func__, info->batt_temp_low_cnt);
+			} else {
+				info->batt_temp_high_cnt = 0;
+				info->batt_temp_low_cnt = 0;
+				info->batt_temp_recover_cnt = 0;
+			}
+		} else {
+			if ((info->batt_event_status)
+			    || (is_event_end_timer_running(info))) {
+				dev_info(info->dev,
+					 "[NA_SPR] Changed Put off Current",
+					 __func__);
+				if (temp_radc >= EVENT_BLOCK_TEMP_ADC) {
+					if (health !=
+					    POWER_SUPPLY_HEALTH_OVERHEAT
+					    && health !=
+					    POWER_SUPPLY_HEALTH_UNSPEC_FAILURE)
+						if (info->batt_temp_high_cnt <
+						    TEMP_BLOCK_COUNT)
+							info->
+							    batt_temp_high_cnt++;
+					dev_info(info->dev,
+						 "%s: high count = %d\n",
+						 __func__,
+						 info->batt_temp_high_cnt);
+				} else if (temp_radc <= HIGH_RECOVER_TEMP_ADC
+					   && temp_radc >=
+					   LOW_RECOVER_TEMP_ADC) {
+					if (health ==
+					    POWER_SUPPLY_HEALTH_OVERHEAT
+					    || health ==
+					    POWER_SUPPLY_HEALTH_COLD) {
+						info->batt_temp_high_cnt = 0;
+						info->batt_temp_low_cnt = 0;
+
+						if (info->
+						    batt_temp_recover_cnt <
+						    TEMP_BLOCK_COUNT)
+							info->
+							    batt_temp_recover_cnt++;
+						dev_info(info->dev,
+							 "%s: recovery count = %d\n",
+							 __func__,
+							 info->
+							 batt_temp_recover_cnt);
+					}
+				} else if (temp_radc <= LOW_BLOCK_TEMP_ADC) {
+					if (health != POWER_SUPPLY_HEALTH_COLD
+					    && health !=
+					    POWER_SUPPLY_HEALTH_UNSPEC_FAILURE)
+						if (info->batt_temp_low_cnt <
+						    TEMP_BLOCK_COUNT)
+							info->
+							    batt_temp_low_cnt++;
+					dev_info(info->dev,
+						 "%s: low count = %d\n",
+						 __func__,
+						 info->batt_temp_low_cnt);
+				} else {
+					info->batt_temp_high_cnt = 0;
+					info->batt_temp_low_cnt = 0;
+					info->batt_temp_recover_cnt = 0;
+				}
+			} else {
+				if (temp_radc >= HIGH_BLOCK_TEMP_ADC) {
+					if (health !=
+					    POWER_SUPPLY_HEALTH_OVERHEAT
+					    && health !=
+					    POWER_SUPPLY_HEALTH_UNSPEC_FAILURE)
+						if (info->batt_temp_high_cnt <
+						    TEMP_BLOCK_COUNT)
+							info->
+							    batt_temp_high_cnt++;
+					dev_info(info->dev,
+						 "%s: high count = %d\n",
+						 __func__,
+						 info->batt_temp_high_cnt);
+				} else if (temp_radc <= HIGH_RECOVER_TEMP_ADC
+					   && temp_radc >=
+					   LOW_RECOVER_TEMP_ADC) {
+					if (health ==
+					    POWER_SUPPLY_HEALTH_OVERHEAT
+					    || health ==
+					    POWER_SUPPLY_HEALTH_COLD) {
+
+						info->batt_temp_high_cnt = 0;
+						info->batt_temp_low_cnt = 0;
+
+						if (info->
+						    batt_temp_recover_cnt <
+						    TEMP_BLOCK_COUNT)
+							info->
+							    batt_temp_recover_cnt++;
+						dev_info(info->dev,
+							 "%s: recovery count = %d\n",
+							 __func__,
+							 info->
+							 batt_temp_recover_cnt);
+					}
+				} else if (temp_radc <= LOW_BLOCK_TEMP_ADC) {
+					if (health != POWER_SUPPLY_HEALTH_COLD
+					    && health !=
+					    POWER_SUPPLY_HEALTH_UNSPEC_FAILURE)
+						if (info->batt_temp_low_cnt <
+						    TEMP_BLOCK_COUNT)
+							info->
+							    batt_temp_low_cnt++;
+					dev_info(info->dev,
+						 "%s: low count = %d\n",
+						 __func__,
+						 info->batt_temp_low_cnt);
+				} else {
+					info->batt_temp_high_cnt = 0;
+					info->batt_temp_low_cnt = 0;
+					info->batt_temp_recover_cnt = 0;
+				}
+			}
+		}
+	}
+
+	if (info->cable_type == CABLE_TYPE_NONE) {
+		if (info->batt_health == POWER_SUPPLY_HEALTH_OVERHEAT ||
+		    info->batt_health == POWER_SUPPLY_HEALTH_COLD) {
+			info->batt_health = POWER_SUPPLY_HEALTH_GOOD;
+			goto skip;
+		}
+	}
+
+	if (info->batt_temp_high_cnt >= TEMP_BLOCK_COUNT)
+		info->batt_health = POWER_SUPPLY_HEALTH_OVERHEAT;
+	else if (info->batt_temp_low_cnt >= TEMP_BLOCK_COUNT)
+		info->batt_health = POWER_SUPPLY_HEALTH_COLD;
+	else if (info->batt_temp_recover_cnt >= TEMP_BLOCK_COUNT)
+		info->batt_health = POWER_SUPPLY_HEALTH_GOOD;
+
+	/*else
+	   info->batt_health = POWER_SUPPLY_HEALTH_GOOD; */
+
+	/*else if (info->batt_temp_recover_cnt >= TEMP_BLOCK_COUNT)
+	   info->batt_health = POWER_SUPPLY_HEALTH_GOOD; */
+ skip:
+	/* Set temperature to fuel gauge */
+	if (info->fuel_gauge_name) {
+		value.intval = info->batt_temp / 10;
+		ret = psy->set_property(psy, POWER_SUPPLY_PROP_TEMP, &value);
+		if (ret) {
+			dev_err(info->dev, "%s: fail to set temperature(%d)\n",
+				__func__, ret);
+		}
+	}
+
+	dev_info(info->dev, "%s: temp=%d, adc=%d\n", __func__, temp, temp_adc);
+
+	return temp;
+}
+
+static void sec_bat_get_dcinovp(struct sec_bat_info *info)
+{
+	struct power_supply *psy = get_power_supply_by_name(info->charger_name);
+	union power_supply_propval value;
+
+	if (!psy) {
+		dev_err(info->dev, "%s: fail to get %s ps\n",
+			__func__, info->charger_name);
+		return;
+	}
+
+	if (info->slate_test_mode) {
+		info->charging_status = POWER_SUPPLY_STATUS_DISCHARGING;
+		info->cable_type = CABLE_TYPE_NONE;
+	} else {
+		psy->get_property(psy, POWER_SUPPLY_PROP_STATUS, &value);
+		info->charging_status = value.intval;
+	}
+}
+
+#elif defined(CONFIG_TARGET_LOCALE_NAATT)
+static int sec_bat_check_temper(struct sec_bat_info *info)
+{
+	struct power_supply *psy
+	    = get_power_supply_by_name(info->fuel_gauge_name);
+	union power_supply_propval value;
+	int ret;
+
+	int temp;
+	int temp_adc = s3c_read_temper_adc(info);
+	int health = info->batt_health;
+	int low = 0;
+	int high = 0;
+	int mid = 0;
+
+	calculate_average_adc(info, &info->temper_adc_sample, temp_adc);
+
+	if (!info->adc_table || !info->adc_arr_size) {
+		/* using fake temp */
+		temp = 300;
+		info->batt_temp = temp;
+		return temp;
+	}
+	high = info->adc_arr_size - 1;
+
+	while (low <= high) {
+		mid = (low + high) / 2;
+		if (info->adc_table[mid].adc > temp_adc)
+			high = mid - 1;
+		else if (info->adc_table[mid].adc < temp_adc)
+			low = mid + 1;
+		else
+			break;
+	}
+	temp = info->adc_table[mid].temperature;
+
+	info->batt_temp = temp;
+
+	if ((info->batt_event_status) || (is_event_end_timer_running(info))) {
+		/*printk("[%s] event temp is applied\n", __func__); */
+		if (temp >= EVENT_BLOCK_TEMP) {
+			if (health != POWER_SUPPLY_HEALTH_OVERHEAT &&
+			    health != POWER_SUPPLY_HEALTH_UNSPEC_FAILURE)
+				if (info->batt_temp_high_cnt < TEMP_BLOCK_COUNT)
+					info->batt_temp_high_cnt++;
+			dev_info(info->dev,
+				 "%s: event high count = %d(in event)\n",
+				 __func__, info->batt_temp_high_cnt);
+		} else if (temp <= EVENT_RECOVER_TEMP
+			   && temp >= LOW_RECOVER_TEMP) {
+			if (health == POWER_SUPPLY_HEALTH_OVERHEAT
+			    || health == POWER_SUPPLY_HEALTH_COLD) {
+
+				info->batt_temp_high_cnt = 0;
+				info->batt_temp_low_cnt = 0;
+
+				if (info->batt_temp_recover_cnt <
+				    TEMP_BLOCK_COUNT)
+					info->batt_temp_recover_cnt++;
+				dev_info(info->dev,
+					 "%s: event recovery count = %d\n",
+					 __func__, info->batt_temp_recover_cnt);
+			}
+		} else if (temp <= LOW_BLOCK_TEMP) {
+			if (health != POWER_SUPPLY_HEALTH_COLD &&
+			    health != POWER_SUPPLY_HEALTH_UNSPEC_FAILURE)
+				if (info->batt_temp_low_cnt < TEMP_BLOCK_COUNT)
+					info->batt_temp_low_cnt++;
+			dev_info(info->dev,
+				 "%s: event low count = %d(in event)\n",
+				 __func__, info->batt_temp_low_cnt);
+		} else {
+			info->batt_temp_high_cnt = 0;
+			info->batt_temp_low_cnt = 0;
+			info->batt_temp_recover_cnt = 0;
+		}
+	} else {
+#if defined(CONFIG_TARGET_LOCALE_NAATT)
+		info->batt_temp_ext_pre = info->batt_temp_ext;
+		switch (info->batt_temp_ext) {
+		case BATT_TEMP_EXT_NONE:
+			if (get_recording_state(info))
+				info->batt_temp_ext =
+				    BATT_TEMP_EXT_CAMCORDING_NORMAL;
+			break;
+		case BATT_TEMP_EXT_CAMCORDING_NORMAL:
+			if (!get_recording_state(info))
+				info->batt_temp_ext = BATT_TEMP_EXT_NONE;
+			else if (temp >= HIGH_DEC_CURR_TEMP)
+				info->batt_temp_ext =
+				    BATT_TEMP_EXT_CAMCORDING_HIGH;
+			break;
+		case BATT_TEMP_EXT_CAMCORDING_HIGH:
+			if (!get_recording_state(info))
+				info->batt_temp_ext = BATT_TEMP_EXT_NONE;
+			else if (temp <= HIGH_INC_CURR_TEMP)
+				info->batt_temp_ext =
+				    BATT_TEMP_EXT_CAMCORDING_NORMAL;
+			break;
+		default:
+			break;
+		}
+		dev_info(info->dev,
+			 "%s: batt_temp_ext_pre=%d, batt_temp_ext=%d\n",
+			 __func__, info->batt_temp_ext_pre,
+			 info->batt_temp_ext);
+#endif
+		/*printk("[%s] nomal temp is applied\n", __func__); */
+		if (temp >= HIGH_BLOCK_TEMP) {
+			if (health != POWER_SUPPLY_HEALTH_OVERHEAT &&
+			    health != POWER_SUPPLY_HEALTH_UNSPEC_FAILURE)
+				if (info->batt_temp_high_cnt < TEMP_BLOCK_COUNT)
+					info->batt_temp_high_cnt++;
+			dev_info(info->dev, "%s: high count = %d\n",
+				 __func__, info->batt_temp_high_cnt);
+		} else if (temp <= HIGH_RECOVER_TEMP
+			   && temp >= LOW_RECOVER_TEMP) {
+			if (health == POWER_SUPPLY_HEALTH_OVERHEAT
+			    || health == POWER_SUPPLY_HEALTH_COLD) {
+
+				info->batt_temp_high_cnt = 0;
+				info->batt_temp_low_cnt = 0;
+
+				if (info->batt_temp_recover_cnt <
+				    TEMP_BLOCK_COUNT)
+					info->batt_temp_recover_cnt++;
+				dev_info(info->dev, "%s: recovery count = %d\n",
+					 __func__, info->batt_temp_recover_cnt);
+			}
+		} else if (temp <= LOW_BLOCK_TEMP) {
+			if (health != POWER_SUPPLY_HEALTH_COLD &&
+			    health != POWER_SUPPLY_HEALTH_UNSPEC_FAILURE)
+				if (info->batt_temp_low_cnt < TEMP_BLOCK_COUNT)
+					info->batt_temp_low_cnt++;
+			dev_info(info->dev, "%s: low count = %d\n",
+				 __func__, info->batt_temp_low_cnt);
+		} else {
+			info->batt_temp_high_cnt = 0;
+			info->batt_temp_low_cnt = 0;
+			info->batt_temp_recover_cnt = 0;
+		}
+	}
+
+	if (info->cable_type == CABLE_TYPE_NONE) {
+		info->batt_temp_high_cnt = 0;
+		info->batt_temp_low_cnt = 0;
+	}
+
+	if (info->batt_temp_high_cnt >= TEMP_BLOCK_COUNT)
+		info->batt_health = POWER_SUPPLY_HEALTH_OVERHEAT;
+	else if (info->batt_temp_low_cnt >= TEMP_BLOCK_COUNT)
+		info->batt_health = POWER_SUPPLY_HEALTH_COLD;
+	else if (info->batt_temp_recover_cnt >= TEMP_BLOCK_COUNT)
+		info->batt_health = POWER_SUPPLY_HEALTH_GOOD;
+
+	/* Set temperature to fuel gauge */
+	if (info->fuel_gauge_name) {
+		value.intval = info->batt_temp / 10;
+		ret = psy->set_property(psy, POWER_SUPPLY_PROP_TEMP, &value);
+		if (ret) {
+			dev_err(info->dev, "%s: fail to set temperature(%d)\n",
+				__func__, ret);
+		}
+	}
+
+	dev_info(info->dev, "%s: temp=%d, adc=%d\n", __func__, temp, temp_adc);
+
+	return temp;
+}
+
+#else
+static int sec_bat_check_temper(struct sec_bat_info *info)
+{
+	struct power_supply *psy
+	    = get_power_supply_by_name(info->fuel_gauge_name);
+	union power_supply_propval value;
+	int ret;
+
+	int temp;
+	int temp_adc = s3c_read_temper_adc(info);
+	int health = info->batt_health;
+	int low = 0;
+	int high = 0;
+	int mid = 0;
+
+	calculate_average_adc(info, &info->temper_adc_sample, temp_adc);
+
+	if (!info->adc_table || !info->adc_arr_size) {
+		/* using fake temp */
+		temp = 300;
+		info->batt_temp = temp;
+		return temp;
+	}
+	high = info->adc_arr_size - 1;
+
+	while (low <= high) {
+		mid = (low + high) / 2;
+		if (info->adc_table[mid].adc > temp_adc)
+			high = mid - 1;
+		else if (info->adc_table[mid].adc < temp_adc)
+			low = mid + 1;
+		else
+			break;
+	}
+	temp = info->adc_table[mid].temperature;
+
+	info->batt_temp = temp;
+
+	if (temp >= HIGH_BLOCK_TEMP) {
+		if (health != POWER_SUPPLY_HEALTH_OVERHEAT &&
+		    health != POWER_SUPPLY_HEALTH_UNSPEC_FAILURE)
+			if (info->batt_temp_high_cnt < TEMP_BLOCK_COUNT)
+				info->batt_temp_high_cnt++;
+		dev_info(info->dev, "%s: high count = %d\n",
+			 __func__, info->batt_temp_high_cnt);
+	} else if (temp <= HIGH_RECOVER_TEMP && temp >= LOW_RECOVER_TEMP) {
+		if (health == POWER_SUPPLY_HEALTH_OVERHEAT ||
+		    health == POWER_SUPPLY_HEALTH_COLD)
+			if (info->batt_temp_recover_cnt < TEMP_BLOCK_COUNT)
+				info->batt_temp_recover_cnt++;
+		dev_info(info->dev, "%s: recovery count = %d\n",
+			 __func__, info->batt_temp_recover_cnt);
+	} else if (temp <= LOW_BLOCK_TEMP) {
+		if (health != POWER_SUPPLY_HEALTH_COLD &&
+		    health != POWER_SUPPLY_HEALTH_UNSPEC_FAILURE)
+			if (info->batt_temp_low_cnt < TEMP_BLOCK_COUNT)
+				info->batt_temp_low_cnt++;
+		dev_info(info->dev, "%s: low count = %d\n",
+			 __func__, info->batt_temp_low_cnt);
+	} else {
+		info->batt_temp_high_cnt = 0;
+		info->batt_temp_low_cnt = 0;
+		info->batt_temp_recover_cnt = 0;
+	}
+
+	if (info->batt_temp_high_cnt >= TEMP_BLOCK_COUNT)
+		info->batt_health = POWER_SUPPLY_HEALTH_OVERHEAT;
+	else if (info->batt_temp_low_cnt >= TEMP_BLOCK_COUNT)
+		info->batt_health = POWER_SUPPLY_HEALTH_COLD;
+	else if (info->batt_temp_recover_cnt >= TEMP_BLOCK_COUNT)
+		info->batt_health = POWER_SUPPLY_HEALTH_GOOD;
+
+	/* Set temperature to fuel gauge */
+	if (info->fuel_gauge_name) {
+		value.intval = info->batt_temp / 10;
+		ret = psy->set_property(psy, POWER_SUPPLY_PROP_TEMP, &value);
+		if (ret) {
+			dev_err(info->dev, "%s: fail to set temperature(%d)\n",
+				__func__, ret);
+		}
+	}
+
+	dev_info(info->dev, "%s: temp=%d, adc=%d\n", __func__, temp, temp_adc);
+
+	return temp;
+}
+#endif
+static void check_chgcurrent(struct sec_bat_info *info)
+{
+	unsigned long chg_current_adc = 0;
+
+	mutex_lock(&info->adclock);
+	chg_current_adc = sec_bat_get_adc_data(info, ADC_CH_CHGCURRENT);
+	mutex_unlock(&info->adclock);
+	if (chg_current_adc < 0)
+		chg_current_adc = info->batt_current_adc;
+	info->batt_current_adc = chg_current_adc;
+
+	dev_dbg(info->dev,
+		"[battery] charging current = %d\n", info->batt_current_adc);
+}
+
+static bool sec_check_chgcurrent(struct sec_bat_info *info)
+{
+	switch (info->charging_status) {
+	case POWER_SUPPLY_STATUS_FULL:
+		info->batt_current_adc = 0;
+		if ((info->batt_full_status == BATT_FULL) &&
+		    (info->recharging_status == false))
+			break;
+	case POWER_SUPPLY_STATUS_CHARGING:
+		check_chgcurrent(info);
+
+		if (info->batt_vfocv >= FULL_CHARGE_COND_VOLTAGE / 1000) {
+
+#ifdef SEC_BATTERY_1ST_2ND_TOPOFF
+			if (((info->charging_status ==
+			      POWER_SUPPLY_STATUS_CHARGING)
+			     && (info->batt_current_adc <=
+				 CURRENT_1ST_FULL_CHG))
+			    ||
+			    ((info->charging_status == POWER_SUPPLY_STATUS_FULL)
+			     && (info->batt_current_adc <=
+				 CURRENT_2ND_FULL_CHG))) {
+#else
+			if (info->batt_current_adc <= CURRENT_OF_FULL_CHG) {
+#endif
+				/*TA full charged */
+				info->charging_adc_full_count++;
+				if (info->charging_adc_full_count >=
+				    FULL_CHG_COND_COUNT) {
+					info->charging_adc_full_count = 0;
+					sec_bat_handle_charger_topoff(info);
+
+					return true;
+				}
+				dev_info(info->dev, "%s : ADC full cnt = %d\n",
+					 __func__,
+					 info->charging_adc_full_count);
+			} else
+				info->charging_adc_full_count = 0;
+		}
+		break;
+	default:
+		info->charging_adc_full_count = 0;
+		info->batt_current_adc = 0;
+		break;
+	}
+
+	return false;
+}
+
+static void sec_bat_update_info(struct sec_bat_info *info)
+{
+	info->batt_raw_soc = sec_bat_get_fuelgauge_data(info, FG_T_PSOC);
+	info->batt_soc = sec_bat_get_fuelgauge_data(info, FG_T_SOC);
+	info->batt_vcell = sec_bat_get_fuelgauge_data(info, FG_T_VCELL);
+	info->batt_vfocv = sec_bat_get_fuelgauge_data(info, FG_T_VFOCV);
+}
+
+static int sec_bat_enable_charging_main(struct sec_bat_info *info, bool enable)
+{
+	struct power_supply *psy = get_power_supply_by_name(info->charger_name);
+	union power_supply_propval val_type, val_chg_current, val_topoff;
+	int ret;
+
+	if (!psy) {
+		dev_err(info->dev, "%s: fail to get charger ps\n", __func__);
+		return -ENODEV;
+	}
+
+	info->batt_full_status = BATT_NOT_FULL;
+
+	if (enable) {		/* Enable charging */
+		switch (info->cable_type) {
+		case CABLE_TYPE_USB:
+			val_type.intval = POWER_SUPPLY_STATUS_CHARGING;
+			val_chg_current.intval = 450;	/* mA */
+			break;
+		case CABLE_TYPE_AC:
+			val_type.intval = POWER_SUPPLY_STATUS_CHARGING;
+			val_chg_current.intval = 650;	/* mA */
+			break;
+		case CABLE_TYPE_MISC:
+			val_type.intval = POWER_SUPPLY_STATUS_CHARGING;
+			val_chg_current.intval = 450;	/* mA */
+			break;
+		default:
+			dev_err(info->dev, "%s: Invalid func use\n", __func__);
+			return -EINVAL;
+		}
+
+		/* Set charging current */
+		ret = psy->set_property(psy, POWER_SUPPLY_PROP_CURRENT_NOW,
+					&val_chg_current);
+		if (ret) {
+			dev_err(info->dev, "%s: fail to set charging cur(%d)\n",
+				__func__, ret);
+			return ret;
+		}
+
+		/* Set topoff current */
+		/* mA: TODO: should change 200->160 */
+		val_topoff.intval = 200;
+		ret = psy->set_property(psy, POWER_SUPPLY_PROP_CHARGE_FULL,
+					&val_topoff);
+		if (ret) {
+			dev_err(info->dev, "%s: fail to set topoff cur(%d)\n",
+				__func__, ret);
+			return ret;
+		}
+
+		/*Reset charging start time only in initial charging start */
+		if (info->charging_start_time == 0) {
+			info->charging_start_time = jiffies;
+			info->charging_next_time = RESETTING_CHG_TIME;
+		}
+	} else {		/* Disable charging */
+		val_type.intval = POWER_SUPPLY_STATUS_DISCHARGING;
+
+		info->charging_start_time = 0;
+		info->charging_passed_time = 0;
+		info->charging_next_time = 0;
+	}
+
+	ret = psy->set_property(psy, POWER_SUPPLY_PROP_STATUS, &val_type);
+	if (ret) {
+		dev_err(info->dev, "%s: fail to set charging status(%d)\n",
+			__func__, ret);
+		return ret;
+	}
+	return 0;
+}
+
+static int sec_bat_enable_charging_sub(struct sec_bat_info *info, bool enable)
+{
+	struct power_supply *psy_main =
+	    get_power_supply_by_name(info->charger_name);
+	struct power_supply *psy_sub =
+	    get_power_supply_by_name(info->sub_charger_name);
+	union power_supply_propval val_type, val_chg_current;
+	int ret;
+
+	if (!psy_main || !psy_sub) {
+		dev_err(info->dev, "%s: fail to get charger ps\n", __func__);
+		return -ENODEV;
+	}
+
+	info->batt_full_status = BATT_NOT_FULL;
+
+	if (enable) {		/* Enable charging */
+		val_type.intval = POWER_SUPPLY_STATUS_DISCHARGING;
+		ret = psy_main->set_property(psy_main, POWER_SUPPLY_PROP_STATUS,
+					     &val_type);
+		if (ret) {
+			dev_err(info->dev, "%s: fail to set charging"
+				" status-main(%d)\n", __func__, ret);
+			return ret;
+		}
+#if defined(CONFIG_MACH_Q1_BD)
+		/* Set charging current only in charging start time */
+		if (info->charging_start_time == 0) {
+#endif
+			switch (info->cable_type) {
+			case CABLE_TYPE_USB:
+				val_type.intval = POWER_SUPPLY_STATUS_CHARGING;
+				val_chg_current.intval = 450;	/* mA */
+				break;
+			case CABLE_TYPE_AC:
+				val_type.intval = POWER_SUPPLY_STATUS_CHARGING;
+#if defined(CONFIG_TARGET_LOCALE_NAATT)
+				if (info->batt_temp_ext ==
+				    BATT_TEMP_EXT_CAMCORDING_HIGH)
+					val_chg_current.intval = 450;	/* mA */
+				else
+#endif
+					val_chg_current.intval = 650;	/* mA */
+				break;
+			case CABLE_TYPE_MISC:
+				val_type.intval = POWER_SUPPLY_STATUS_CHARGING;
+				val_chg_current.intval = 450;	/* mA */
+				break;
+			default:
+				dev_err(info->dev, "%s: Invalid func use\n",
+					__func__);
+				return -EINVAL;
+			}
+
+			/* Set charging current */
+			ret = psy_sub->set_property(psy_sub,
+				POWER_SUPPLY_PROP_CURRENT_NOW,
+				&val_chg_current);
+			if (ret) {
+				dev_err(info->dev,
+					"%s: fail to set charging cur(%d)\n",
+					__func__, ret);
+				return ret;
+			}
+#if defined(CONFIG_MACH_Q1_BD)
+			/* Reset charging */
+		} else
+			val_type.intval = POWER_SUPPLY_STATUS_CHARGING;
+#endif
+
+		/*Reset charging start time only in initial charging start */
+		if (info->charging_start_time == 0) {
+			info->charging_start_time = jiffies;
+			info->charging_next_time = RESETTING_CHG_TIME;
+		}
+	} else {		/* Disable charging */
+		val_type.intval = POWER_SUPPLY_STATUS_DISCHARGING;
+		ret = psy_main->set_property(psy_main, POWER_SUPPLY_PROP_STATUS,
+					     &val_type);
+		if (ret) {
+			dev_err(info->dev, "%s: fail to set charging"
+				" status-main(%d)\n", __func__, ret);
+			return ret;
+		}
+		info->charging_start_time = 0;
+		info->charging_passed_time = 0;
+		info->charging_next_time = 0;
+	}
+
+	ret = psy_sub->set_property(psy_sub, POWER_SUPPLY_PROP_STATUS,
+				    &val_type);
+	if (ret) {
+		dev_err(info->dev, "%s: fail to set charging status(%d)\n",
+			__func__, ret);
+		return ret;
+	}
+
+	return 0;
+}
+
+static int sec_bat_enable_charging(struct sec_bat_info *info, bool enable)
+{
+	if (enable && (info->batt_health != POWER_SUPPLY_HEALTH_GOOD)) {
+		info->charging_status = POWER_SUPPLY_STATUS_NOT_CHARGING;
+		dev_info(info->dev, "%s: Battery is NOT good!!!\n", __func__);
+		return -EPERM;
+	}
+
+	if (info->use_sub_charger)
+		return sec_bat_enable_charging_sub(info, enable);
+	else
+		return sec_bat_enable_charging_main(info, enable);
+}
+
+static void sec_bat_cable_work(struct work_struct *work)
+{
+	struct sec_bat_info *info = container_of(work, struct sec_bat_info,
+						 cable_work);
+
+	switch (info->cable_type) {
+	case CABLE_TYPE_NONE:
+		if (!sec_bat_enable_charging(info, false)) {
+			info->batt_full_status = BATT_NOT_FULL;
+			info->recharging_status = false;
+			info->charging_status = POWER_SUPPLY_STATUS_DISCHARGING;
+			info->batt_health = POWER_SUPPLY_HEALTH_GOOD;
+			info->batt_temp_high_cnt = 0;
+			info->batt_temp_low_cnt = 0;
+			info->batt_temp_recover_cnt = 0;
+#if defined(CONFIG_TARGET_LOCALE_NAATT)
+			info->batt_temp_ext = BATT_TEMP_EXT_NONE;
+			info->batt_temp_ext_pre = BATT_TEMP_EXT_NONE;
+#endif
+			wake_lock_timeout(&info->vbus_wake_lock, HZ * 5);
+		}
+		break;
+	case CABLE_TYPE_USB:
+	case CABLE_TYPE_AC:
+	case CABLE_TYPE_MISC:
+		if (!sec_bat_enable_charging(info, true)) {
+			info->charging_status = POWER_SUPPLY_STATUS_CHARGING;
+			wake_lock(&info->vbus_wake_lock);
+		}
+		break;
+	default:
+		dev_err(info->dev, "%s: Invalid cable type\n", __func__);
+		break;
+	}
+
+	power_supply_changed(&info->psy_ac);
+	power_supply_changed(&info->psy_usb);
+
+	wake_unlock(&info->cable_wake_lock);
+}
+
+static bool sec_bat_charging_time_management(struct sec_bat_info *info)
+{
+	if (info->charging_start_time == 0) {
+		dev_info(info->dev,
+			"%s: charging_start_time has never been used since initializing\n",
+			__func__);
+		return false;
+	}
+
+	if (jiffies >= info->charging_start_time)
+		info->charging_passed_time =
+		    jiffies - info->charging_start_time;
+	else
+		info->charging_passed_time =
+		    0xFFFFFFFF - info->charging_start_time + jiffies;
+
+	switch (info->charging_status) {
+	case POWER_SUPPLY_STATUS_FULL:
+		if (info->recharging_status == true &&
+		    time_after(info->charging_passed_time,
+			       (unsigned long)RECHARGING_TIME)) {
+			if (!sec_bat_enable_charging(info, false)) {
+				info->recharging_status = false;
+				dev_info(info->dev,
+					 "%s: Recharging timer expired\n",
+					 __func__);
+				return true;
+			}
+		}
+#ifndef SEC_BATTERY_1ST_2ND_TOPOFF
+		break;
+#endif
+	case POWER_SUPPLY_STATUS_CHARGING:
+#if defined(CONFIG_MACH_Q1_BD)
+		if (info->cable_type != CABLE_TYPE_USB) {
+#endif
+			if (time_after(info->charging_passed_time,
+				       (unsigned long)FULL_CHARGING_TIME)) {
+				if (!sec_bat_enable_charging(info, false)) {
+					info->charging_status =
+					    POWER_SUPPLY_STATUS_FULL;
+					info->batt_full_status = BATT_FULL;
+					info->recharging_status = false;
+
+					dev_info(info->dev,
+						 "%s: Charging timer expired\n",
+						 __func__);
+					return true;
+				}
+			}
+#if defined(CONFIG_MACH_Q1_BD)
+		}
+#endif
+		if (time_after(info->charging_passed_time,
+			       info->charging_next_time)) {
+			/*reset current in charging status */
+			if (!sec_bat_enable_charging(info, true)) {
+				info->charging_next_time =
+				    info->charging_passed_time +
+				    RESETTING_CHG_TIME;
+
+				dev_info(info->dev,
+					 "%s: Reset charging current\n",
+					 __func__);
+			}
+		}
+		break;
+	default:
+		dev_info(info->dev, "%s: Undefine Battery Status\n", __func__);
+		return false;
+	}
+
+	dev_info(info->dev, "Time past : %u secs\n",
+		 jiffies_to_msecs(info->charging_passed_time) / 1000);
+
+	return false;
+}
+
+#if defined(CONFIG_TARGET_LOCALE_NAATT)
+static void sec_bat_check_vf_adc(struct sec_bat_info *info)
+{
+	int adc;
+	static int invalid_vf_count;
+
+	if (system_rev == 11)
+		return;
+
+	mutex_lock(&info->adclock);
+	adc = sec_bat_get_adc_data(info, info->vf_adc_channel);
+	mutex_unlock(&info->adclock);
+
+	if (adc <= 0)
+		adc = info->batt_vf_adc;
+
+	info->batt_vf_adc = adc;
+
+	if ((info->batt_vf_adc > MAX_VF || info->batt_vf_adc < MIN_VF)
+	    && ((info->cable_type == CABLE_TYPE_AC)
+		|| info->cable_type == CABLE_TYPE_USB)) {
+		invalid_vf_count++;
+
+		printk(KERN_DEBUG
+		       "[%s] invalid VF is detected... (vf = %d, count = %d)\n",
+		       __func__, info->batt_vf_adc, invalid_vf_count);
+
+		if (invalid_vf_count >= VF_COUNT) {
+			printk(KERN_DEBUG
+			       "[%s] invalid VF is detected over %d times and now power off.\n",
+			       __func__, invalid_vf_count);
+			if (pm_power_off)
+				pm_power_off();
+		}
+	} else {
+		invalid_vf_count = 0;
+	}
+
+	return;
+}
+#endif
+
+static void sec_bat_check_vf(struct sec_bat_info *info)
+{
+	struct power_supply *psy = get_power_supply_by_name(info->charger_name);
+	union power_supply_propval value;
+	int ret;
+
+	if (!psy) {
+		dev_err(info->dev, "%s: fail to get %s ps\n",
+			__func__, info->charger_name);
+		return;
+	}
+
+#if defined(CONFIG_MACH_Q1_BD)
+	if (system_rev <= HWREV_FOR_BATTERY) {
+		int adc;
+
+		mutex_lock(&info->adclock);
+		adc = sec_bat_get_adc_data(info, ADC_CH_VF);
+		mutex_unlock(&info->adclock);
+
+		dev_info(info->dev, "%s: adc (%d/%d)\n", __func__, adc,
+			 HWREV_FOR_BATTERY);
+
+		if (adc > MAX_VF_ADC || adc < MIN_VF_ADC)
+			value.intval = BAT_NOT_DETECTED;
+		else
+			value.intval = BAT_DETECTED;
+	} else {
+#endif
+		ret = psy->get_property(psy, POWER_SUPPLY_PROP_PRESENT, &value);
+
+		if (ret < 0) {
+			dev_err(info->dev, "%s: fail to get status(%d)\n",
+				__func__, ret);
+			return;
+		}
+#if defined(CONFIG_MACH_Q1_BD)
+	}
+#endif
+
+	if (value.intval == BAT_NOT_DETECTED) {
+		if (info->present_count < BAT_DET_COUNT)
+			info->present_count++;
+		else {
+			info->present = BAT_NOT_DETECTED;
+			if (info->batt_health == POWER_SUPPLY_HEALTH_GOOD)
+				info->batt_health =
+				    POWER_SUPPLY_HEALTH_UNSPEC_FAILURE;
+		}
+	} else {
+		info->present = BAT_DETECTED;
+		if ((info->batt_health == POWER_SUPPLY_HEALTH_UNSPEC_FAILURE) ||
+		    (info->batt_health == POWER_SUPPLY_HEALTH_UNKNOWN))
+			info->batt_health = POWER_SUPPLY_HEALTH_GOOD;
+		info->present_count = 0;
+	}
+
+	dev_info(info->dev, "%s: Battery Health (%d)\n",
+		 __func__, info->batt_health);
+	return;
+}
+
+#if (defined(CONFIG_MACH_Q1_BD) && defined(CONFIG_SMB328_CHARGER))
+static void sec_bat_check_ovp(struct sec_bat_info *info)
+{
+	struct power_supply *psy =
+	    get_power_supply_by_name(info->sub_charger_name);
+	union power_supply_propval value;
+	int ret;
+
+	if (!psy) {
+		dev_err(info->dev, "%s: fail to get %s ps\n",
+			__func__, info->sub_charger_name);
+		return;
+	}
+
+	ret = psy->get_property(psy, POWER_SUPPLY_PROP_HEALTH, &value);
+
+	if (ret < 0) {
+		dev_err(info->dev, "%s: fail to get health(%d)\n",
+			__func__, ret);
+		return;
+	}
+
+	if (value.intval == POWER_SUPPLY_HEALTH_OVERVOLTAGE)
+		info->batt_health = value.intval;
+}
+#endif
+
+static bool sec_bat_check_ing_level_trigger(struct sec_bat_info *info)
+{
+	struct power_supply *psy;
+	union power_supply_propval value;
+	int ret;
+
+	if (info->use_sub_charger && info->sub_charger_name) {
+		psy = get_power_supply_by_name(info->sub_charger_name);
+
+		if (!psy) {
+			dev_err(info->dev, "%s: fail to get %s ps\n",
+				__func__, info->sub_charger_name);
+			return false;
+		}
+
+		ret = psy->get_property(psy, POWER_SUPPLY_PROP_STATUS, &value);
+
+		if (ret < 0) {
+			dev_err(info->dev, "%s: fail to get status(%d)\n",
+				__func__, ret);
+			return false;
+		}
+
+		switch (info->charging_status) {
+		case POWER_SUPPLY_STATUS_FULL:
+			if (info->recharging_status == false)
+				break;
+		case POWER_SUPPLY_STATUS_CHARGING:
+			switch (value.intval) {
+#ifdef SEC_BATTERY_TOPOFF_BY_CHARGER
+			case POWER_SUPPLY_STATUS_FULL:
+				/* top-off by full charging */
+				if (info->batt_vcell >=
+				    FULL_CHARGE_COND_VOLTAGE) {
+					sec_bat_handle_charger_topoff(info);
+					dev_info(info->dev,
+						 "%s : top-off by full charging\n",
+						 __func__);
+					return true;
+				} else {
+					/*reactivate charging in */
+					/*next monitor work */
+					/*for abnormal */
+					/*full-charged status */
+					info->charging_next_time =
+					    info->charging_passed_time + HZ;
+				}
+				break;
+#endif
+#if defined(CONFIG_MACH_Q1_BD)
+			case POWER_SUPPLY_STATUS_NOT_CHARGING:
+				ret =
+				    psy->get_property(psy,
+						      POWER_SUPPLY_PROP_HEALTH,
+						      &value);
+
+				if (ret < 0) {
+					dev_err(info->dev,
+						"%s: fail to get health(%d)\n",
+						__func__, ret);
+					return false;
+				}
+				info->batt_health = value.intval;
+#else
+			case POWER_SUPPLY_STATUS_DISCHARGING:
+				if (info->cable_type != CABLE_TYPE_NONE)
+					info->batt_health =
+					    POWER_SUPPLY_HEALTH_OVERVOLTAGE;
+				break;
+			case POWER_SUPPLY_STATUS_NOT_CHARGING:
+#if defined(CONFIG_MACH_U1_NA_SPR_EPIC2_REV00)
+				if (info->cable_type == CABLE_TYPE_USB ||
+					info->cable_type == CABLE_TYPE_MISC ||
+					info->cable_type == CABLE_TYPE_AC) {
+#else
+				if (info->cable_type == CABLE_TYPE_USB ||
+					info->cable_type == CABLE_TYPE_MISC) {
+#endif
+					if (info->batt_vcell >=
+					    FULL_CHARGE_COND_VOLTAGE) {
+						/* USB full charged */
+						info->charging_int_full_count++;
+						if (info->
+						    charging_int_full_count >=
+						    FULL_CHG_COND_COUNT) {
+							info->
+							    charging_int_full_count
+							    = 0;
+							sec_bat_handle_charger_topoff
+							    (info);
+							return true;
+						}
+						dev_info(info->dev,
+							 "%s : full interrupt cnt = %d\n",
+							 __func__,
+							 info->
+							 charging_int_full_count);
+					} else {
+						info->charging_int_full_count =
+						    0;
+						/*reactivate charging in */
+						/*next monitor work */
+						/*for abnormal */
+						/*full-charged status */
+						info->charging_next_time =
+						    info->charging_passed_time +
+						    HZ;
+					}
+				}
+				break;
+#endif
+			}
+			break;
+		case POWER_SUPPLY_STATUS_NOT_CHARGING:
+#if defined(CONFIG_MACH_Q1_BD)
+			if (info->batt_health ==
+			    POWER_SUPPLY_HEALTH_OVERVOLTAGE) {
+				ret =
+				    psy->get_property(psy,
+						      POWER_SUPPLY_PROP_HEALTH,
+						      &value);
+
+				if (ret < 0) {
+					dev_err(info->dev,
+						"%s: fail to get health(%d)\n",
+						__func__, ret);
+					return false;
+				}
+				info->batt_health = value.intval;
+			}
+#else
+			if (info->batt_health == POWER_SUPPLY_HEALTH_OVERVOLTAGE
+			    && value.intval == POWER_SUPPLY_STATUS_NOT_CHARGING)
+				info->batt_health = POWER_SUPPLY_HEALTH_GOOD;
+#endif
+			break;
+		default:
+			info->charging_int_full_count = 0;
+			break;
+		}
+		return false;
+	} else {
+		psy = get_power_supply_by_name(info->charger_name);
+
+		if (!psy) {
+			dev_err(info->dev, "%s: fail to get %s ps\n",
+				__func__, info->charger_name);
+			return false;
+		}
+
+		ret = psy->get_property(psy, POWER_SUPPLY_PROP_STATUS, &value);
+
+		if (ret < 0) {
+			dev_err(info->dev, "%s: fail to get status(%d)\n",
+				__func__, ret);
+			return false;
+		}
+
+		switch (info->charging_status) {
+		case POWER_SUPPLY_STATUS_FULL:
+			if (info->recharging_status == false)
+				break;
+		case POWER_SUPPLY_STATUS_CHARGING:
+			switch (value.intval) {
+			case POWER_SUPPLY_STATUS_DISCHARGING:
+				if (info->cable_type == CABLE_TYPE_USB ||
+				    info->cable_type == CABLE_TYPE_MISC) {
+					if (info->batt_vcell >=
+					    FULL_CHARGE_COND_VOLTAGE) {
+						/*USB full charged */
+						info->charging_int_full_count++;
+						if (info->
+						    charging_int_full_count >=
+						    FULL_CHG_COND_COUNT) {
+							info->
+							    charging_int_full_count
+							    = 0;
+							sec_bat_handle_charger_topoff
+							    (info);
+							return true;
+						}
+						dev_info(info->dev,
+							 "%s : full interrupt cnt = %d\n",
+							 __func__,
+							 info->
+							 charging_int_full_count);
+					} else {
+						info->charging_int_full_count =
+						    0;
+						/*reactivate charging in */
+						/*next monitor work */
+						/*for abnormal full-charged status */
+						info->charging_next_time =
+						    info->charging_passed_time +
+						    HZ;
+					}
+				}
+				break;
+			}
+			break;
+		default:
+			info->charging_int_full_count = 0;
+			break;
+		}
+		return false;
+	}
+}
+
+static void sec_bat_monitor_work(struct work_struct *work)
+{
+	struct sec_bat_info *info = container_of(work, struct sec_bat_info,
+						 monitor_work);
+
+	sec_bat_check_temper(info);
+#ifndef SEC_BATTERY_INDEPEDENT_VF_CHECK
+	sec_bat_check_vf(info);
+#endif
+	sec_bat_update_info(info);
+#ifdef SPRINT_SLATE_TEST
+	if (info->charging_status != POWER_SUPPLY_STATUS_FULL &&
+	    info->batt_health == POWER_SUPPLY_HEALTH_GOOD)
+		if (info->batt_temp_recover_cnt == 0
+		    || info->batt_temp_recover_cnt > 3)
+			sec_bat_get_dcinovp(info);
+#endif
+	if (sec_bat_charging_time_management(info))
+		goto full_charged;
+
+	if (sec_bat_check_ing_level_trigger(info))
+		goto full_charged;
+
+#if !defined(CONFIG_MACH_Q1_BD)
+	if (info->cable_type == CABLE_TYPE_AC)
+#endif
+		if (sec_check_chgcurrent(info))
+			goto full_charged;
+
+	if (info->cable_type == CABLE_TYPE_NONE &&
+	    info->charging_status == POWER_SUPPLY_STATUS_FULL) {
+		dev_err(info->dev, "invalid full state\n");
+		info->charging_status = POWER_SUPPLY_STATUS_DISCHARGING;
+	}
+
+	if (info->test_value) {
+		switch (info->test_value) {
+		case 1:	/*full status */
+			info->charging_status = POWER_SUPPLY_STATUS_FULL;
+			break;
+		case 2:	/*low temperature */
+			info->batt_health = POWER_SUPPLY_HEALTH_COLD;
+			break;
+		case 3:	/*high temperature */
+			info->batt_health = POWER_SUPPLY_HEALTH_OVERHEAT;
+			break;
+		case 4:	/*over voltage */
+			info->batt_health = POWER_SUPPLY_HEALTH_OVERVOLTAGE;
+			break;
+		case 5:	/*abnormal battery */
+			info->batt_health = POWER_SUPPLY_HEALTH_UNSPEC_FAILURE;
+			break;
+		case 6:	/*tmu tripped */
+			info->batt_tmu_status = TMU_STATUS_TRIPPED;
+			break;
+		}
+	}
+
+	switch (info->charging_status) {
+	case POWER_SUPPLY_STATUS_FULL:
+
+#ifdef CONFIG_TARGET_LOCALE_NA
+		if (info->batt_vcell < RECHARGING_VOLTAGE &&
+		    info->recharging_status == false) {
+			info->recharging_int_threshold_count++;
+			if (info->recharging_int_threshold_count
+			    >= RECHARGING_CND_COUNT) {
+				if (!sec_bat_enable_charging(info, true)) {
+					info->recharging_int_threshold_count =
+					    0;
+					info->recharging_status = true;
+
+					dev_info(info->dev,
+						 "%s: Start Recharging, Vcell = %d\n",
+						 __func__, info->batt_vcell);
+				}
+			}
+		} else {
+			info->recharging_int_threshold_count = 0;
+		}
+#else
+		if (info->batt_vcell < RECHARGING_VOLTAGE &&
+		    info->recharging_status == false) {
+			if (!sec_bat_enable_charging(info, true)) {
+				info->recharging_status = true;
+
+				dev_info(info->dev,
+					 "%s: Start Recharging, Vcell = %d\n",
+					 __func__, info->batt_vcell);
+			}
+		}
+#endif
+		break;
+	case POWER_SUPPLY_STATUS_CHARGING:
+		switch (info->batt_health) {
+#if defined(CONFIG_TARGET_LOCALE_NAATT)
+		case POWER_SUPPLY_HEALTH_GOOD:
+			if (info->batt_temp_ext_pre != info->batt_temp_ext) {
+				sec_bat_enable_charging(info, false);
+
+				if (!sec_bat_enable_charging(info, true)) {
+					dev_info(info->dev,
+						 "%s: Changed charging current\n",
+						 __func__);
+				}
+			}
+			break;
+#endif
+		case POWER_SUPPLY_HEALTH_OVERHEAT:
+		case POWER_SUPPLY_HEALTH_COLD:
+		case POWER_SUPPLY_HEALTH_OVERVOLTAGE:
+		case POWER_SUPPLY_HEALTH_DEAD:
+		case POWER_SUPPLY_HEALTH_UNSPEC_FAILURE:
+			if (!sec_bat_enable_charging(info, false)) {
+				info->charging_status =
+				    POWER_SUPPLY_STATUS_NOT_CHARGING;
+				info->recharging_status = false;
+
+				dev_info(info->dev, "%s: Not charging\n",
+					 __func__);
+			}
+			break;
+		default:
+			break;
+		}
+		break;
+	case POWER_SUPPLY_STATUS_DISCHARGING:
+		dev_dbg(info->dev, "%s: Discharging\n", __func__);
+		break;
+	case POWER_SUPPLY_STATUS_NOT_CHARGING:
+		if (info->batt_health == POWER_SUPPLY_HEALTH_GOOD) {
+			dev_info(info->dev, "%s: recover health state\n",
+				 __func__);
+			if (info->cable_type != CABLE_TYPE_NONE) {
+				if (!sec_bat_enable_charging(info, true))
+					info->charging_status =
+					    POWER_SUPPLY_STATUS_CHARGING;
+			} else
+				info->charging_status
+				    = POWER_SUPPLY_STATUS_DISCHARGING;
+		}
+		break;
+	default:
+		dev_info(info->dev, "%s: Undefined Battery Status\n", __func__);
+		return;
+	}
+
+ full_charged:
+#if defined(CONFIG_TARGET_LOCALE_NAATT)
+	dev_info(info->dev,
+		 "soc(%d), vfocv(%d), vcell(%d), temp(%d), charging(%d), health(%d), vf(%d)\n",
+		 info->batt_soc, info->batt_vfocv, info->batt_vcell / 1000,
+		 info->batt_temp / 10, info->charging_status, info->batt_health,
+		 info->batt_vf_adc);
+#else
+	dev_info(info->dev,
+		 "soc(%d), vfocv(%d), vcell(%d), temp(%d), charging(%d), health(%d), chg_adc(%d)\n",
+		 info->batt_soc, info->batt_vfocv, info->batt_vcell / 1000,
+		 info->batt_temp / 10, info->charging_status,
+		 info->batt_health, info->batt_current_adc);
+#endif
+
+	power_supply_changed(&info->psy_bat);
+
+	wake_unlock(&info->monitor_wake_lock);
+
+	return;
+}
+
+#ifdef SEC_BATTERY_INDEPEDENT_VF_CHECK
+static void sec_bat_vf_check_work(struct work_struct *work)
+{
+	struct sec_bat_info *info;
+	info = container_of(work, struct sec_bat_info, vf_check_work.work);
+
+	sec_bat_check_vf(info);
+
+#if defined(CONFIG_TARGET_LOCALE_NAATT)
+	sec_bat_check_vf_adc(info);
+#endif
+
+#if (defined(CONFIG_MACH_Q1_BD) && defined(CONFIG_SMB328_CHARGER))
+	sec_bat_check_ovp(info);
+
+	if ((info->batt_health == POWER_SUPPLY_HEALTH_UNSPEC_FAILURE) ||
+	    (info->batt_health == POWER_SUPPLY_HEALTH_OVERVOLTAGE)) {
+		dev_info(info->dev,
+			 "%s: Battery Disconnected or OVP activated\n",
+			 __func__);
+#else
+	if (info->batt_health == POWER_SUPPLY_HEALTH_UNSPEC_FAILURE) {
+		dev_info(info->dev, "%s: Battery Disconnected\n", __func__);
+#endif
+		wake_lock(&info->monitor_wake_lock);
+		queue_work(info->monitor_wqueue, &info->monitor_work);
+	}
+
+	schedule_delayed_work(&info->vf_check_work,
+			      msecs_to_jiffies(VF_CHECK_INTERVAL));
+}
+#endif
+
+static void sec_bat_polling_work(struct work_struct *work)
+{
+	struct sec_bat_info *info;
+	info = container_of(work, struct sec_bat_info, polling_work.work);
+
+	wake_lock(&info->monitor_wake_lock);
+	queue_work(info->monitor_wqueue, &info->monitor_work);
+
+	if (info->initial_check_count) {
+		schedule_delayed_work(&info->polling_work, HZ);
+		info->initial_check_count--;
+	} else
+		schedule_delayed_work(&info->polling_work,
+				      msecs_to_jiffies(info->polling_interval));
+}
+
+#define SEC_BATTERY_ATTR(_name)			\
+{						\
+	.attr = { .name = #_name,		\
+		  .mode = 0664 },		\
+	.show = sec_bat_show_property,		\
+	.store = sec_bat_store,			\
+}
+
+static struct device_attribute sec_battery_attrs[] = {
+	SEC_BATTERY_ATTR(batt_vol),
+	SEC_BATTERY_ATTR(batt_soc),
+	SEC_BATTERY_ATTR(batt_vfocv),
+	SEC_BATTERY_ATTR(batt_temp),
+	SEC_BATTERY_ATTR(batt_temp_adc),
+#ifdef CONFIG_TARGET_LOCALE_NA
+	SEC_BATTERY_ATTR(batt_temp_radc),
+#endif
+	SEC_BATTERY_ATTR(batt_temp_adc_avg),
+	SEC_BATTERY_ATTR(charging_source),
+	SEC_BATTERY_ATTR(batt_lp_charging),
+	SEC_BATTERY_ATTR(video),
+	SEC_BATTERY_ATTR(mp3),
+	SEC_BATTERY_ATTR(batt_type),
+	SEC_BATTERY_ATTR(batt_full_check),
+	SEC_BATTERY_ATTR(batt_temp_check),
+	SEC_BATTERY_ATTR(batt_temp_adc_spec),
+	SEC_BATTERY_ATTR(batt_test_value),
+	SEC_BATTERY_ATTR(batt_current_now),
+	SEC_BATTERY_ATTR(batt_current_adc),
+	SEC_BATTERY_ATTR(siop_activated),
+	SEC_BATTERY_ATTR(system_rev),
+#ifdef CONFIG_TARGET_LOCALE_NA
+	SEC_BATTERY_ATTR(fg_soc),
+#else
+	SEC_BATTERY_ATTR(fg_psoc),
+#endif				/* CONFIG_TARGET_LOCALE_NA */
+	SEC_BATTERY_ATTR(batt_lpm_state),
+	SEC_BATTERY_ATTR(batt_tmu_status),
+#ifdef SPRINT_SLATE_TEST
+	SEC_BATTERY_ATTR(slate_test_mode),
+#endif
+#if defined(CONFIG_TARGET_LOCALE_NAATT)
+	SEC_BATTERY_ATTR(batt_v_f_adc),
+	SEC_BATTERY_ATTR(batt_voice_call_2g),
+	SEC_BATTERY_ATTR(batt_voice_call_3g),
+	SEC_BATTERY_ATTR(batt_data_call),
+	SEC_BATTERY_ATTR(wifi),
+	SEC_BATTERY_ATTR(batt_gps),
+	SEC_BATTERY_ATTR(camera),
+	SEC_BATTERY_ATTR(recording),
+#elif defined(CONFIG_TARGET_LOCALE_NA)
+	SEC_BATTERY_ATTR(call),
+	/*SEC_BATTERY_ATTR(video),*/
+	/*SEC_BATTERY_ATTR(music),*/
+	SEC_BATTERY_ATTR(browser),
+	SEC_BATTERY_ATTR(hotspot),
+	SEC_BATTERY_ATTR(camera),
+	SEC_BATTERY_ATTR(data_call),
+	SEC_BATTERY_ATTR(wimax),
+#endif
+};
+
+enum {
+	BATT_VOL = 0,
+	BATT_SOC,
+	BATT_VFOCV,
+	BATT_TEMP,
+	BATT_TEMP_ADC,
+#ifdef CONFIG_TARGET_LOCALE_NA
+	BATT_TEMP_RADC,
+#endif
+	BATT_TEMP_ADC_AVG,
+	CHARGING_SOURCE,
+	BATT_LP_CHARGING,
+	BATT_VIDEO,
+	BATT_MP3,
+	BATT_TYPE,
+	BATT_FULL_CHECK,
+	BATT_TEMP_CHECK,
+	BATT_TEMP_ADC_SPEC,
+	BATT_TEST_VALUE,
+	BATT_CURRENT_NOW,
+	BATT_CURRENT_ADC,
+	BATT_SIOP_ACTIVATED,
+	BATT_SYSTEM_REV,
+	BATT_FG_PSOC,
+	BATT_LPM_STATE,
+	BATT_TMU_STATUS,
+#ifdef SPRINT_SLATE_TEST
+	SLATE_TEST_MODE,
+#endif
+#if defined(CONFIG_TARGET_LOCALE_NAATT)
+	BATT_V_F_ADC,
+	BATT_VOICE_CALL_2G,
+	BATT_VOICE_CALL_3G,
+	BATT_DATA_CALL,
+	BATT_WIFI,
+	BATT_GPS,
+	BATT_CAMERA,
+	BATT_RECORDING,
+#endif
+#if defined(CONFIG_TARGET_LOCALE_NA)
+	BATT_CALL,
+	BATT_BROWSER,
+	BATT_HOTSOPT,
+	BATT_CAMERA,
+	BATT_DATA_CALL,
+	BATT_WIMAX,
+#endif
+};
+
+#if defined(CONFIG_TARGET_LOCALE_NAATT)
+static void sec_bat_check_event_status(struct sec_bat_info *info, int mode,
+				       int offset)
+{
+	int is_event_running = 0;
+
+	if ((info->batt_event_status != 0)
+	    /*&& (info->cable_type != CABLE_TYPE_NONE) */
+	    )
+		is_event_running = 1;
+
+	if (mode) {
+		if (!(info->batt_event_status & offset))
+			info->batt_event_status |= offset;
+	} else {
+		if (info->batt_event_status & offset)
+			info->batt_event_status &= ~offset;
+	}
+
+	printk(KERN_DEBUG "[%s] current batt_event_status = 0x%x\n", __func__,
+	       info->batt_event_status);
+
+	if ((info->batt_event_status == 0) && (is_event_running == 1))
+		info->event_end_time = jiffies;
+
+	return;
+}
+#elif defined(CONFIG_TARGET_LOCALE_NA)
+static void sec_bat_check_event_status(struct sec_bat_info *info, int mode,
+				       int offset)
+{
+	int is_event_running = 0;
+
+	if ((info->batt_event_status != 0)
+	    /*&& (info->cable_type != CABLE_TYPE_NONE) */
+	    )
+		is_event_running = 1;
+
+	if (mode) {
+		if (!(info->batt_event_status & offset))
+			info->batt_event_status |= offset;
+	} else {
+		if (info->batt_event_status & offset)
+			info->batt_event_status &= ~offset;
+	}
+
+	printk(KERN_DEBUG "[%s] current batt_event_status = 0x%x\n", __func__,
+	       info->batt_event_status);
+
+	if ((info->batt_event_status == 0) && (is_event_running == 1))
+		info->event_expired_time = jiffies;
+
+	return;
+}
+
+int sec_bat_use_wimax(int onoff)
+{
+	struct sec_bat_info *info = pchg;
+	sec_bat_check_event_status(info, onoff, USE_WIMAX);
+}
+EXPORT_SYMBOL(sec_bat_use_wimax);
+#endif
+
+static ssize_t sec_bat_show_property(struct device *dev,
+				     struct device_attribute *attr, char *buf)
+{
+	struct sec_bat_info *info = dev_get_drvdata(dev->parent);
+	int i = 0, val;
+	const ptrdiff_t off = attr - sec_battery_attrs;
+
+	switch (off) {
+	case BATT_VOL:
+		val = sec_bat_get_fuelgauge_data(info, FG_T_AVGVCELL);
+		i += scnprintf(buf + i, PAGE_SIZE - i, "%d\n", val);
+		break;
+	case BATT_SOC:
+		val = sec_bat_get_fuelgauge_data(info, FG_T_SOC);
+		i += scnprintf(buf + i, PAGE_SIZE - i, "%d\n", val);
+		break;
+	case BATT_VFOCV:
+		val = sec_bat_get_fuelgauge_data(info, FG_T_VFOCV);
+		i += scnprintf(buf + i, PAGE_SIZE - i, "%d\n", val);
+		break;
+	case BATT_TEMP:
+		i += scnprintf(buf + i, PAGE_SIZE - i, "%d\n", info->batt_temp);
+		break;
+	case BATT_TEMP_ADC:
+		val = s3c_read_temper_adc(info);
+		i += scnprintf(buf + i, PAGE_SIZE - i, "%d\n", val);
+		break;
+#ifdef CONFIG_TARGET_LOCALE_NA
+	case BATT_TEMP_RADC:
+		val = s3c_read_temper_adc(info);
+		val = sec_rescale_temp_adc(info);
+		i += scnprintf(buf + i, PAGE_SIZE - i, "%d\n",
+			       info->batt_temp_radc);
+		break;
+#endif
+	case BATT_TEMP_ADC_AVG:
+		val = info->temper_adc_sample.average_adc;
+		i += scnprintf(buf + i, PAGE_SIZE - i, "%d\n", val);
+		break;
+	case CHARGING_SOURCE:
+		i += scnprintf(buf + i, PAGE_SIZE - i, "%d\n",
+			       info->cable_type);
+		break;
+	case BATT_LP_CHARGING:
+		i += scnprintf(buf + i, PAGE_SIZE - i, "%d\n",
+			       info->get_lpcharging_state());
+		break;
+	case BATT_VIDEO:
+		/* TODO */
+#ifdef CONFIG_TARGET_LOCALE_NA
+		i += scnprintf(buf + i, PAGE_SIZE - i, "%d\n", info->use_video);
+#else
+		i += scnprintf(buf + i, PAGE_SIZE - i, "%d\n", 0);
+#endif
+		break;
+	case BATT_MP3:
+		/* TODO */
+#ifdef CONFIG_TARGET_LOCALE_NA
+		i += scnprintf(buf + i, PAGE_SIZE - i, "%d\n", info->use_music);
+#else
+		i += scnprintf(buf + i, PAGE_SIZE - i, "%d\n", 0);
+#endif
+		break;
+	case BATT_TYPE:
+		i += scnprintf(buf + i, PAGE_SIZE - i, "%s\n", "SDI_SDI");
+		break;
+	case BATT_FULL_CHECK:
+		i += scnprintf(buf + i, PAGE_SIZE - i, "%d\n",
+			       (info->charging_status ==
+				POWER_SUPPLY_STATUS_FULL)
+			       ? 1 : 0);
+		break;
+	case BATT_TEMP_CHECK:
+		i += scnprintf(buf + i, PAGE_SIZE - i,
+			       "%d\n", info->batt_health);
+		break;
+	case BATT_TEMP_ADC_SPEC:
+#ifdef CONFIG_TARGET_LOCALE_NA
+		i += scnprintf(buf + i, PAGE_SIZE - i,
+			       "(HIGH: %d - %d,   LOW: %d - %d)\n",
+			       HIGH_BLOCK_TEMP_ADC, HIGH_RECOVER_TEMP_ADC,
+			       LOW_BLOCK_TEMP_ADC, LOW_RECOVER_TEMP_ADC);
+#else
+		i += scnprintf(buf + i, PAGE_SIZE - i,
+			       "(HIGH: %d - %d,   LOW: %d - %d)\n",
+			       HIGH_BLOCK_TEMP / 10, HIGH_RECOVER_TEMP / 10,
+			       LOW_BLOCK_TEMP / 10, LOW_RECOVER_TEMP / 10);
+#endif
+		break;
+	case BATT_TEST_VALUE:
+		i += scnprintf(buf + i, PAGE_SIZE - i,
+			       "0-normal, 1-full, 2-low, 3-high, 4-over, 5-cf, 6-trip (%d)\n",
+			       info->test_value);
+		break;
+	case BATT_CURRENT_NOW:
+	case BATT_SIOP_ACTIVATED:
+		{
+			struct power_supply *psy =
+			    get_power_supply_by_name(info->sub_charger_name);
+			union power_supply_propval value;
+
+			if (!psy) {
+				pr_err("%s: fail to get battery ps\n",
+				       __func__);
+				return -ENODEV;
+			}
+
+			/* initialized as NOT charging */
+			value.intval = 0;
+
+			if ((info->charging_status ==
+			     POWER_SUPPLY_STATUS_CHARGING)
+			    || (info->charging_status ==
+				POWER_SUPPLY_STATUS_FULL))
+				psy->get_property(psy,
+						  POWER_SUPPLY_PROP_CURRENT_NOW,
+						  &value);
+
+			i += scnprintf(buf + i, PAGE_SIZE - i, "%d\n",
+				       value.intval);
+		}
+		break;
+	case BATT_CURRENT_ADC:
+		i += scnprintf(buf + i, PAGE_SIZE - i, "%d\n",
+			       info->batt_current_adc);
+		break;
+	case BATT_SYSTEM_REV:
+		i += scnprintf(buf + i, PAGE_SIZE - i, "%d\n", system_rev);
+		break;
+	case BATT_FG_PSOC:
+		val = sec_bat_get_fuelgauge_data(info, FG_T_PSOC);
+		i += scnprintf(buf + i, PAGE_SIZE - i, "%d\n", val);
+		break;
+	case BATT_LPM_STATE:
+		i += scnprintf(buf + i, PAGE_SIZE - i, "%d\n",
+			       info->batt_lpm_state);
+		break;
+	case BATT_TMU_STATUS:
+		i += scnprintf(buf + i, PAGE_SIZE - i, "%d\n",
+			       info->batt_tmu_status);
+		break;
+#ifdef SPRINT_SLATE_TEST
+	case SLATE_TEST_MODE:
+		i += scnprintf(buf + i, PAGE_SIZE - i, "%d\n",
+			       info->slate_test_mode);
+		break;
+#endif
+#if defined(CONFIG_TARGET_LOCALE_NAATT)
+	case BATT_V_F_ADC:
+		i += scnprintf(buf + i, PAGE_SIZE - i, "%d\n",
+			       info->batt_vf_adc);
+		break;
+	case BATT_VOICE_CALL_2G:
+		/* TODO */
+		i += scnprintf(buf + i, PAGE_SIZE - i, "%d\n", 0);
+		break;
+	case BATT_VOICE_CALL_3G:
+		/* TODO */
+		i += scnprintf(buf + i, PAGE_SIZE - i, "%d\n", 0);
+		break;
+	case BATT_DATA_CALL:
+		/* TODO */
+		i += scnprintf(buf + i, PAGE_SIZE - i, "%d\n", 0);
+		break;
+	case BATT_WIFI:
+		/* TODO */
+		i += scnprintf(buf + i, PAGE_SIZE - i, "%d\n", 0);
+		break;
+	case BATT_GPS:
+		/* TODO */
+		i += scnprintf(buf + i, PAGE_SIZE - i, "%d\n", 0);
+		break;
+	case BATT_CAMERA:
+		/* TODO */
+		i += scnprintf(buf + i, PAGE_SIZE - i, "%d\n", 0);
+		break;
+	case BATT_RECORDING:
+		/* TODO */
+		i += scnprintf(buf + i, PAGE_SIZE - i, "%d\n", 0);
+		break;
+#endif
+#ifdef CONFIG_TARGET_LOCALE_NA
+	case BATT_CALL:
+		i += scnprintf(buf + i, PAGE_SIZE - i, "%d\n", info->use_call);
+		break;
+	case BATT_BROWSER:
+		i += scnprintf(buf + i, PAGE_SIZE - i,
+			       "%d\n", info->use_browser);
+		break;
+	case BATT_HOTSOPT:
+		i += scnprintf(buf + i, PAGE_SIZE - i,
+			       "%d\n", info->use_hotspot);
+		break;
+	case BATT_CAMERA:
+		i += scnprintf(buf + i, PAGE_SIZE - i,
+			       "%d\n", info->use_camera);
+		break;
+	case BATT_DATA_CALL:
+		i += scnprintf(buf + i, PAGE_SIZE - i,
+			       "%d\n", info->use_data_call);
+		break;
+	case BATT_WIMAX:
+		i += scnprintf(buf + i, PAGE_SIZE - i, "%d\n", info->use_wimax);
+		break;
+#endif
+	default:
+		i = -EINVAL;
+		break;
+	}
+
+	return i;
+}
+
+static ssize_t sec_bat_store(struct device *dev,
+			     struct device_attribute *attr,
+			     const char *buf, size_t count)
+{
+	int ret = 0, x = 0;
+	const ptrdiff_t off = attr - sec_battery_attrs;
+	struct sec_bat_info *info = dev_get_drvdata(dev->parent);
+
+	switch (off) {
+	case BATT_CURRENT_NOW:
+		if (sscanf(buf, "%d\n", &x) == 1) {
+			ret = count;
+			if ((info->charging_status ==
+			     POWER_SUPPLY_STATUS_CHARGING)
+			    || (info->charging_status ==
+				POWER_SUPPLY_STATUS_FULL)) {
+				struct power_supply *psy =
+				    get_power_supply_by_name(info->
+							     sub_charger_name);
+				union power_supply_propval value;
+
+				if (!psy) {
+					pr_err("%s: fail to get battery ps\n",
+					       __func__);
+					return -ENODEV;
+				}
+
+				value.intval = x;	/* charging current */
+				psy->set_property(psy,
+						  POWER_SUPPLY_PROP_CURRENT_NOW,
+						  &value);
+
+				/* reflect changing current */
+				value.intval = true;
+				psy->set_property(psy, POWER_SUPPLY_PROP_ONLINE,
+						  &value);
+			} else
+				pr_err("%s: NOT charging status\n", __func__);
+		}
+		break;
+	case BATT_SIOP_ACTIVATED:
+		if (sscanf(buf, "%d\n", &x) == 1) {
+			ret = count;
+			if ((info->charging_status ==
+			     POWER_SUPPLY_STATUS_CHARGING) ||
+			    (info->charging_status ==
+			     POWER_SUPPLY_STATUS_FULL)) {
+				struct power_supply *psy =
+				    get_power_supply_by_name(info->
+							     sub_charger_name);
+				union power_supply_propval value;
+
+				if (!psy) {
+					pr_err("%s: fail to get battery ps\n",
+					       __func__);
+					return -ENODEV;
+				}
+
+				if (x) {
+					/* charging current for SIOP */
+					value.intval = 450;
+				} else {
+					switch (info->cable_type) {
+					case CABLE_TYPE_USB:
+					case CABLE_TYPE_MISC:
+						value.intval = 450;	/* mA */
+						break;
+					case CABLE_TYPE_AC:
+						value.intval = 650;	/* mA */
+						break;
+					default:
+						dev_err(info->dev,
+							"%s: Invalid func use\n",
+							__func__);
+						return -EINVAL;
+					}
+				}
+				psy->set_property(psy,
+						  POWER_SUPPLY_PROP_CURRENT_NOW,
+						  &value);
+
+				/* reflect changing current */
+				value.intval = true;
+				psy->set_property(psy,
+						  POWER_SUPPLY_PROP_ONLINE,
+						  &value);
+			} else
+				pr_err("%s: NOT charging status\n", __func__);
+		}
+		break;
+	case BATT_VIDEO:
+		/* TODO */
+		if (sscanf(buf, "%d\n", &x) == 1) {
+			dev_info(info->dev, "%s: video(%d)\n", __func__, x);
+			ret = count;
+#if defined(CONFIG_TARGET_LOCALE_NAATT)
+			sec_bat_check_event_status(info, x, OFFSET_VIDEO_PLAY);
+#elif defined(CONFIG_TARGET_LOCALE_NA)
+			info->use_video = x;
+			sec_bat_check_event_status(info, x, USE_VIDEO);
+#endif
+		}
+		break;
+	case BATT_MP3:
+		/* TODO */
+		if (sscanf(buf, "%d\n", &x) == 1) {
+			dev_info(info->dev, "%s: mp3(%d)\n", __func__, x);
+			ret = count;
+#if defined(CONFIG_TARGET_LOCALE_NAATT)
+			sec_bat_check_event_status(info, x, OFFSET_MP3_PLAY);
+#elif defined(CONFIG_TARGET_LOCALE_NA)
+			info->use_music = x;
+			sec_bat_check_event_status(info, x, USE_MUSIC);
+#endif
+		}
+		break;
+	case BATT_TEST_VALUE:
+		if (sscanf(buf, "%d\n", &x) == 1) {
+			info->test_value = x;
+			printk(KERN_DEBUG "%s : test case : %d\n", __func__,
+			       info->test_value);
+			ret = count;
+		}
+		break;
+	case BATT_LPM_STATE:
+		if (sscanf(buf, "%d\n", &x) == 1) {
+			info->batt_lpm_state = x;
+			ret = count;
+		}
+		break;
+#ifdef SPRINT_SLATE_TEST
+	case SLATE_TEST_MODE:
+		if (strncmp(buf, "1", 1) == 0) {
+			info->slate_test_mode = true;
+			ret = count;
+		} else {
+			info->slate_test_mode = false;
+			ret = count;
+		}
+		break;
+#endif
+#if defined(CONFIG_TARGET_LOCALE_NAATT)
+	case BATT_VOICE_CALL_2G:
+		/* TODO */
+		if (sscanf(buf, "%d\n", &x) == 1) {
+			dev_info(info->dev, "%s: call 2G(%d)\n", __func__, x);
+			ret = count;
+			sec_bat_check_event_status(info, x,
+						   OFFSET_VOICE_CALL_2G);
+		}
+		break;
+	case BATT_VOICE_CALL_3G:
+		/* TODO */
+		if (sscanf(buf, "%d\n", &x) == 1) {
+			dev_info(info->dev, "%s: call 3G(%d)\n", __func__, x);
+			ret = count;
+			sec_bat_check_event_status(info, x,
+						   OFFSET_VOICE_CALL_3G);
+		}
+		break;
+	case BATT_DATA_CALL:
+		/* TODO */
+		if (sscanf(buf, "%d\n", &x) == 1) {
+			dev_info(info->dev, "%s: data call(%d)\n", __func__, x);
+			ret = count;
+			sec_bat_check_event_status(info, x, OFFSET_DATA_CALL);
+		}
+		break;
+	case BATT_WIFI:
+		/* TODO */
+		if (sscanf(buf, "%d\n", &x) == 1) {
+			dev_info(info->dev, "%s: wifi(%d)\n", __func__, x);
+			ret = count;
+			sec_bat_check_event_status(info, x, OFFSET_WIFI);
+		}
+		break;
+	case BATT_GPS:
+		/* TODO */
+		if (sscanf(buf, "%d\n", &x) == 1) {
+			dev_info(info->dev, "%s: gps(%d)\n", __func__, x);
+			ret = count;
+			sec_bat_check_event_status(info, x, OFFSET_GPS);
+		}
+		break;
+	case BATT_CAMERA:
+		/* TODO */
+		if (sscanf(buf, "%d\n", &x) == 1) {
+			dev_info(info->dev, "%s: camera(%d)\n", __func__, x);
+			ret = count;
+			sec_bat_check_event_status(info, x, OFFSET_CAMERA_ON);
+		}
+		break;
+	case BATT_RECORDING:
+		/* TODO */
+		if (sscanf(buf, "%d\n", &x) == 1) {
+			dev_info(info->dev, "%s: recording(%d)\n", __func__, x);
+			ret = count;
+			sec_bat_check_event_status(info, x,
+						   OFFSET_RECORDING_ON);
+		}
+		break;
+#endif
+#ifdef CONFIG_TARGET_LOCALE_NA
+	case BATT_CALL:
+		/* TODO */
+		if (sscanf(buf, "%d\n", &x) == 1) {
+			info->use_call = x;
+			dev_info(info->dev, "[NA_SPR]%s: call (%d)\n", __func__,
+				 x);
+			ret = count;
+			sec_bat_check_event_status(info, x, USE_CALL);
+		}
+		break;
+	case BATT_BROWSER:
+		/* TODO */
+		if (sscanf(buf, "%d\n", &x) == 1) {
+			info->use_browser = x;
+			dev_info(info->dev, "[NA_SPR]%s: BROWSER(%d)\n",
+				 __func__, x);
+			ret = count;
+			sec_bat_check_event_status(info, x, USE_BROWSER);
+		}
+		break;
+	case BATT_HOTSOPT:
+		/* TODO */
+		if (sscanf(buf, "%d\n", &x) == 1) {
+			info->use_hotspot = x;
+			dev_info(info->dev, "[NA_SPR]%s: HOTSPOT(%d)\n",
+				 __func__, x);
+			ret = count;
+			sec_bat_check_event_status(info, x, USE_HOTSPOT);
+		}
+		break;
+	case BATT_CAMERA:
+		/* TODO */
+		if (sscanf(buf, "%d\n", &x) == 1) {
+			dev_info(info->dev, "[NA_SPR]%s: CAMERA(%d)\n",
+				 __func__, x);
+			ret = count;
+			sec_bat_check_event_status(info, x, USE_CAMERA);
+		}
+		break;
+	case BATT_DATA_CALL:
+		/* TODO */
+		if (sscanf(buf, "%d\n", &x) == 1) {
+			info->use_data_call = x;
+			dev_info(info->dev, "[NA_SPR]%s: DATA CALL(%d)\n",
+				 __func__, x);
+			ret = count;
+			sec_bat_check_event_status(info, x, USE_DATA_CALL);
+		}
+		break;
+	case BATT_WIMAX:
+		/* TODO */
+		if (sscanf(buf, "%d\n", &x) == 1) {
+			info->use_wimax = x;
+			dev_info(info->dev, "[NA_SPR]%s: WIMAX(%d)\n", __func__,
+				 x);
+			ret = count;
+			sec_bat_check_event_status(info, x, USE_WIMAX);
+		}
+		break;
+#endif
+	default:
+		ret = -EINVAL;
+	}
+
+	return ret;
+}
+
+static int sec_bat_create_attrs(struct device *dev)
+{
+	int i, rc;
+
+	for (i = 0; i < ARRAY_SIZE(sec_battery_attrs); i++) {
+		rc = device_create_file(dev, &sec_battery_attrs[i]);
+		if (rc)
+			goto sec_attrs_failed;
+	}
+	goto succeed;
+
+ sec_attrs_failed:
+	while (i--)
+		device_remove_file(dev, &sec_battery_attrs[i]);
+ succeed:
+	return rc;
+}
+
+static int sec_bat_is_charging(struct sec_bat_info *info)
+{
+	struct power_supply *psy = get_power_supply_by_name(info->charger_name);
+	union power_supply_propval value;
+	int ret;
+
+	if (!psy) {
+		dev_err(info->dev, "%s: fail to get charger ps\n", __func__);
+		return -ENODEV;
+	}
+
+	ret = psy->get_property(psy, POWER_SUPPLY_PROP_STATUS, &value);
+	if (ret < 0) {
+		dev_err(info->dev, "%s: fail to get status(%d)\n", __func__,
+			ret);
+		return ret;
+	}
+
+	return value.intval;
+}
+
+static int sec_bat_read_proc(char *buf, char **start,
+			     off_t offset, int count, int *eof, void *data)
+{
+	struct sec_bat_info *info = data;
+	struct timespec cur_time;
+	ktime_t ktime;
+	int len = 0;
+
+	ktime = alarm_get_elapsed_realtime();
+	cur_time = ktime_to_timespec(ktime);
+
+#ifdef CONFIG_TARGET_LOCALE_NA
+	len = sprintf(buf,
+		      "%lu, %u, %u, %u, %u, %u, %d, %d, %d, %u, %u, %u, %u, %u, %u, %u, %d, %lu\n",
+		      cur_time.tv_sec,
+		      info->batt_raw_soc,
+		      info->batt_soc,
+		      info->batt_vfocv,
+		      info->batt_vcell,
+		      info->batt_current_adc,
+		      info->batt_full_status,
+		      info->charging_int_full_count,
+		      info->charging_adc_full_count,
+		      info->recharging_status,
+		      info->batt_temp_adc,
+		      info->batt_temp_radc,
+		      info->batt_health,
+		      info->charging_status,
+		      info->batt_tmu_status,
+		      info->present,
+		      info->cable_type, info->charging_passed_time);
+
+	return len;
+}
+#else
+	len = sprintf(buf,
+		      "%lu, %u, %u, %u, %u, %u, %d, %d, %d, %u, %u, %u, %u, %u, %u, %d, %lu\n",
+		      cur_time.tv_sec,
+		      info->batt_raw_soc,
+		      info->batt_soc,
+		      info->batt_vfocv,
+		      info->batt_vcell,
+		      info->batt_current_adc,
+		      info->batt_full_status,
+		      info->charging_int_full_count,
+		      info->charging_adc_full_count,
+		      info->recharging_status,
+		      info->batt_temp_adc,
+		      info->batt_health,
+		      info->charging_status,
+		      info->batt_tmu_status,
+		      info->present,
+		      info->cable_type, info->charging_passed_time);
+
+	return len;
+}
+#endif
+
+static __devinit int sec_bat_probe(struct platform_device *pdev)
+{
+	struct sec_bat_platform_data *pdata = dev_get_platdata(&pdev->dev);
+	struct sec_bat_info *info;
+	struct power_supply *psy;
+	union power_supply_propval value;
+	int ret = 0;
+
+	dev_info(&pdev->dev, "%s: SEC Battery Driver Loading\n", __func__);
+
+	info = kzalloc(sizeof(*info), GFP_KERNEL);
+	if (!info)
+		return -ENOMEM;
+
+	platform_set_drvdata(pdev, info);
+
+	info->dev = &pdev->dev;
+	if (!pdata->fuel_gauge_name || !pdata->charger_name) {
+		dev_err(info->dev, "%s: no fuel gauge or charger name\n",
+			__func__);
+		goto err_kfree;
+	}
+	info->fuel_gauge_name = pdata->fuel_gauge_name;
+	info->charger_name = pdata->charger_name;
+	info->sub_charger_name = pdata->sub_charger_name;
+#if defined(CONFIG_MACH_U1_NA_SPR_EPIC2_REV00)
+	if (system_rev <= HWREV_FOR_BATTERY) {
+#else
+	if (system_rev >= HWREV_FOR_BATTERY) {
+#endif
+		dev_info(&pdev->dev, "%s: use sub-charger (%s)\n",
+			 __func__, info->sub_charger_name);
+		info->adc_arr_size = pdata->adc_sub_arr_size;
+		info->adc_table = pdata->adc_sub_table;
+		info->adc_channel = pdata->adc_sub_channel;
+		info->use_sub_charger = true;
+	} else {
+		dev_info(&pdev->dev, "%s: use main charger (%s)\n",
+			 __func__, info->charger_name);
+		info->adc_arr_size = pdata->adc_arr_size;
+		info->adc_table = pdata->adc_table;
+		info->adc_channel = pdata->adc_channel;
+		info->use_sub_charger = false;
+	}
+	info->get_lpcharging_state = pdata->get_lpcharging_state;
+#if defined(CONFIG_TARGET_LOCALE_NAATT)
+	info->vf_adc_channel = pdata->adc_vf_channel;
+#endif
+
+	info->psy_bat.name = "battery",
+	    info->psy_bat.type = POWER_SUPPLY_TYPE_BATTERY,
+	    info->psy_bat.properties = sec_battery_props,
+	    info->psy_bat.num_properties = ARRAY_SIZE(sec_battery_props),
+	    info->psy_bat.get_property = sec_bat_get_property,
+	    info->psy_bat.set_property = sec_bat_set_property,
+	    info->psy_usb.name = "usb",
+	    info->psy_usb.type = POWER_SUPPLY_TYPE_USB,
+	    info->psy_usb.supplied_to = supply_list,
+	    info->psy_usb.num_supplicants = ARRAY_SIZE(supply_list),
+	    info->psy_usb.properties = sec_power_props,
+	    info->psy_usb.num_properties = ARRAY_SIZE(sec_power_props),
+	    info->psy_usb.get_property = sec_usb_get_property,
+	    info->psy_ac.name = "ac",
+	    info->psy_ac.type = POWER_SUPPLY_TYPE_MAINS,
+	    info->psy_ac.supplied_to = supply_list,
+	    info->psy_ac.num_supplicants = ARRAY_SIZE(supply_list),
+	    info->psy_ac.properties = sec_power_props,
+	    info->psy_ac.num_properties = ARRAY_SIZE(sec_power_props),
+	    info->psy_ac.get_property = sec_ac_get_property;
+
+	wake_lock_init(&info->vbus_wake_lock, WAKE_LOCK_SUSPEND,
+		       "vbus_present");
+	wake_lock_init(&info->monitor_wake_lock, WAKE_LOCK_SUSPEND,
+		       "sec-battery-monitor");
+	wake_lock_init(&info->cable_wake_lock, WAKE_LOCK_SUSPEND,
+		       "sec-battery-cable");
+
+	psy = get_power_supply_by_name(info->charger_name);
+
+	if (!psy) {
+		dev_err(info->dev, "%s: fail to get charger\n", __func__);
+		return -ENODEV;
+	}
+
+	ret = psy->get_property(psy, POWER_SUPPLY_PROP_PRESENT, &value);
+
+	if (ret < 0) {
+		dev_err(info->dev, "%s: fail to get status(%d)\n",
+			__func__, ret);
+		return -ENODEV;
+	}
+	info->present = value.intval;
+
+	if (info->present == BAT_NOT_DETECTED)
+		info->batt_health = POWER_SUPPLY_HEALTH_UNSPEC_FAILURE;
+	else
+		info->batt_health = POWER_SUPPLY_HEALTH_GOOD;
+
+#if defined(CONFIG_MACH_Q1_BD)
+	info->charging_status = POWER_SUPPLY_STATUS_DISCHARGING;
+#else
+	info->charging_status = sec_bat_is_charging(info);
+	if (info->charging_status < 0)
+		info->charging_status = POWER_SUPPLY_STATUS_DISCHARGING;
+#endif
+
+	info->present_count = 0;
+	info->charging_int_full_count = 0;
+	info->charging_adc_full_count = 0;
+#ifdef CONFIG_TARGET_LOCALE_NA
+	info->recharging_int_threshold_count = 0;
+#endif
+	info->batt_temp_high_cnt = 0;
+	info->batt_temp_low_cnt = 0;
+	info->batt_temp_recover_cnt = 0;
+
+	info->initial_check_count = INIT_CHECK_COUNT;
+
+	mutex_init(&info->adclock);
+
+	info->padc = s3c_adc_register(pdev, NULL, NULL, 0);
+	info->charging_start_time = 0;
+
+#if defined(CONFIG_TARGET_LOCALE_NAATT)
+	info->batt_vf_adc = 0;
+	info->batt_event_status = 0;
+	info->event_end_time = 0xFFFFFFFF;
+#elif defined(CONFIG_TARGET_LOCALE_NA)
+	info->use_call = 0;
+	info->use_video = 0;
+	info->use_music = 0;
+	info->use_browser = 0;
+	info->use_hotspot = 0;
+	info->use_camera = 0;
+	info->use_data_call = 0;
+	info->use_wimax = 0;
+	info->batt_event_status = 0;
+	info->event_expired_time = 0xFFFFFFFF;
+#endif
+	if (info->get_lpcharging_state) {
+		if (info->get_lpcharging_state())
+			info->polling_interval = POLLING_INTERVAL / 4;
+		else
+			info->polling_interval = POLLING_INTERVAL;
+	}
+
+	info->test_value = 0;
+
+	info->batt_tmu_status = TMU_STATUS_NORMAL;
+
+	/* init power supplier framework */
+	ret = power_supply_register(&pdev->dev, &info->psy_bat);
+	if (ret) {
+		dev_err(info->dev, "%s: failed to register psy_bat\n",
+			__func__);
+		goto err_wake_lock;
+	}
+
+	ret = power_supply_register(&pdev->dev, &info->psy_usb);
+	if (ret) {
+		dev_err(info->dev, "%s: failed to register psy_usb\n",
+			__func__);
+		goto err_supply_unreg_bat;
+	}
+
+	ret = power_supply_register(&pdev->dev, &info->psy_ac);
+	if (ret) {
+		dev_err(info->dev, "%s: failed to register psy_ac\n", __func__);
+		goto err_supply_unreg_usb;
+	}
+
+	/* create sec detail attributes */
+	sec_bat_create_attrs(info->psy_bat.dev);
+
+	info->entry = create_proc_entry("batt_info_proc", S_IRUGO, NULL);
+	if (!info->entry)
+		dev_err(info->dev, "%s: failed to create proc_entry\n",
+			__func__);
+	else {
+		info->entry->read_proc = sec_bat_read_proc;
+		info->entry->data = (struct sec_bat_info *)info;
+	}
+
+	info->monitor_wqueue = create_freezable_workqueue(dev_name(&pdev->dev));
+	if (!info->monitor_wqueue) {
+		dev_err(info->dev, "%s: fail to create workqueue\n", __func__);
+		goto err_supply_unreg_ac;
+	}
+
+	INIT_WORK(&info->monitor_work, sec_bat_monitor_work);
+	INIT_WORK(&info->cable_work, sec_bat_cable_work);
+
+	INIT_DELAYED_WORK_DEFERRABLE(&info->polling_work, sec_bat_polling_work);
+	schedule_delayed_work(&info->polling_work, 0);
+
+#ifdef CONFIG_TARGET_LOCALE_NA
+	pchg = info;		/* using pointer - for wimax */
+#endif
+
+#ifdef SEC_BATTERY_INDEPEDENT_VF_CHECK
+	INIT_DELAYED_WORK_DEFERRABLE(&info->vf_check_work,
+				     sec_bat_vf_check_work);
+	schedule_delayed_work(&info->vf_check_work, 0);
+#endif
+
+#if defined(CONFIG_MACH_Q1_BD)
+	if (pdata->initial_check)
+		pdata->initial_check();
+#endif
+
+	dev_info(info->dev, "%s: SEC Battery Driver Loaded\n", __func__);
+	return 0;
+
+ err_supply_unreg_ac:
+	power_supply_unregister(&info->psy_ac);
+ err_supply_unreg_usb:
+	power_supply_unregister(&info->psy_usb);
+ err_supply_unreg_bat:
+	power_supply_unregister(&info->psy_bat);
+ err_wake_lock:
+	wake_lock_destroy(&info->vbus_wake_lock);
+	wake_lock_destroy(&info->monitor_wake_lock);
+	wake_lock_destroy(&info->cable_wake_lock);
+	s3c_adc_release(info->padc);
+	mutex_destroy(&info->adclock);
+ err_kfree:
+	kfree(info);
+
+	return ret;
+}
+
+static int __devexit sec_bat_remove(struct platform_device *pdev)
+{
+	struct sec_bat_info *info = platform_get_drvdata(pdev);
+
+	remove_proc_entry("batt_info_proc", NULL);
+
+	flush_workqueue(info->monitor_wqueue);
+	destroy_workqueue(info->monitor_wqueue);
+
+	cancel_delayed_work(&info->polling_work);
+#ifdef SEC_BATTERY_INDEPEDENT_VF_CHECK
+	cancel_delayed_work(&info->vf_check_work);
+#endif
+
+	power_supply_unregister(&info->psy_bat);
+	power_supply_unregister(&info->psy_usb);
+	power_supply_unregister(&info->psy_ac);
+
+	wake_lock_destroy(&info->vbus_wake_lock);
+	wake_lock_destroy(&info->monitor_wake_lock);
+	wake_lock_destroy(&info->cable_wake_lock);
+	mutex_destroy(&info->adclock);
+
+	s3c_adc_release(info->padc);
+
+	kfree(info);
+
+	return 0;
+}
+
+static int sec_bat_suspend(struct device *dev)
+{
+	struct sec_bat_info *info = dev_get_drvdata(dev);
+
+	cancel_work_sync(&info->monitor_work);
+	cancel_delayed_work(&info->polling_work);
+#ifdef SEC_BATTERY_INDEPEDENT_VF_CHECK
+	cancel_delayed_work(&info->vf_check_work);
+#endif
+
+	return 0;
+}
+
+static int sec_bat_resume(struct device *dev)
+{
+	struct sec_bat_info *info = dev_get_drvdata(dev);
+
+	wake_lock(&info->monitor_wake_lock);
+	queue_work(info->monitor_wqueue, &info->monitor_work);
+
+	schedule_delayed_work(&info->polling_work,
+			      msecs_to_jiffies(info->polling_interval));
+
+#ifdef SEC_BATTERY_INDEPEDENT_VF_CHECK
+	schedule_delayed_work(&info->vf_check_work,
+			      msecs_to_jiffies(VF_CHECK_INTERVAL));
+#endif
+
+	return 0;
+}
+
+#if defined(CONFIG_TARGET_LOCALE_NA)
+static void sec_bat_shutdown(struct device *dev)
+{
+	struct sec_bat_info *info = dev_get_drvdata(dev);
+	struct power_supply *psy_main, *psy_sub;
+	union power_supply_propval val_type;
+	int ret;
+
+	if (!info->use_sub_charger)
+		return;
+
+	psy_main = get_power_supply_by_name(info->charger_name);
+	psy_sub = get_power_supply_by_name(info->sub_charger_name);
+
+	if (!psy_main || !psy_sub) {
+		dev_err(info->dev, "%s: fail to get charger ps\n", __func__);
+		return;
+	}
+
+	val_type.intval = POWER_SUPPLY_STATUS_CHARGING;
+	ret =
+	    psy_main->set_property(psy_main, POWER_SUPPLY_PROP_STATUS,
+				   &val_type);
+	if (ret) {
+		dev_err(info->dev, "%s: fail to set charging status(%d)\n",
+			__func__, ret);
+		return;
+	}
+
+	val_type.intval = POWER_SUPPLY_STATUS_DISCHARGING;
+	ret =
+	    psy_sub->set_property(psy_sub, POWER_SUPPLY_PROP_STATUS, &val_type);
+	if (ret) {
+		dev_err(info->dev, "%s: fail to set charging status(%d)\n",
+			__func__, ret);
+		return;
+	}
+}
+#elif defined(CONFIG_MACH_Q1_BD)
+static void sec_bat_shutdown(struct device *dev)
+{
+	struct sec_bat_info *info = dev_get_drvdata(dev);
+#if defined(CONFIG_SMB328_CHARGER)
+	struct power_supply *psy_sub =
+	    get_power_supply_by_name("smb328-charger");
+	union power_supply_propval value;
+	int ret;
+
+	if (!psy_sub) {
+		dev_err(info->dev, "%s: fail to get charger ps\n", __func__);
+		return;
+	}
+
+	/* only for OTG */
+	value.intval = false;
+	ret = psy_sub->set_property(psy_sub,
+				    POWER_SUPPLY_PROP_CHARGE_TYPE, &value);
+	if (ret) {
+		dev_info(info->dev, "%s: fail to set OTG (%d)\n",
+			 __func__, ret);
+		return;
+	}
+#endif
+}
+#else
+#define sec_bat_shutdown	NULL
+#endif
+
+static const struct dev_pm_ops sec_bat_pm_ops = {
+	.suspend = sec_bat_suspend,
+	.resume = sec_bat_resume,
+};
+
+static struct platform_driver sec_bat_driver = {
+	.driver = {
+		   .name = "sec-battery",
+		   .owner = THIS_MODULE,
+		   .pm = &sec_bat_pm_ops,
+		   .shutdown = sec_bat_shutdown,
+		   },
+	.probe = sec_bat_probe,
+	.remove = __devexit_p(sec_bat_remove),
+};
+
+static int __init sec_bat_init(void)
+{
+	return platform_driver_register(&sec_bat_driver);
+}
+
+static void __exit sec_bat_exit(void)
+{
+	platform_driver_unregister(&sec_bat_driver);
+}
+
+late_initcall(sec_bat_init);
+module_exit(sec_bat_exit);
+
+MODULE_DESCRIPTION("SEC battery driver");
+MODULE_AUTHOR("<ms925.kim@samsung.com>");
+MODULE_AUTHOR("<joshua.chang@samsung.com>");
+MODULE_LICENSE("GPL");
diff --git a/drivers/power/sec_battery_u1_kor.c b/drivers/power/sec_battery_u1_kor.c
new file mode 100644
index 0000000..147072e
--- /dev/null
+++ b/drivers/power/sec_battery_u1_kor.c
@@ -0,0 +1,2299 @@
+/*
+ *  sec_battery.c
+ *  Samsung Mobile Battery Driver
+ *
+ *  Copyright (C) 2010 Samsung Electronics
+ *
+ *  <ms925.kim@samsung.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/delay.h>
+#include <linux/err.h>
+#include <linux/init.h>
+#include <linux/interrupt.h>
+#include <linux/io.h>
+#include <linux/jiffies.h>
+#include <linux/platform_device.h>
+#include <linux/power_supply.h>
+#include <linux/slab.h>
+#include <linux/wakelock.h>
+#include <linux/workqueue.h>
+#include <linux/proc_fs.h>
+#include <linux/android_alarm.h>
+#include <plat/adc.h>
+#include <linux/power/sec_battery_u1.h>
+
+#define POLLING_INTERVAL	(40 * 1000)
+#define MEASURE_DSG_INTERVAL	(20 * 1000)
+#define MEASURE_CHG_INTERVAL	(3 * 1000)
+#define FULL_CHARGING_TIME	(6 * 60 * 60 * HZ)	/* 6hr */
+#define RECHARGING_TIME		(2 * 60 * 60 * HZ)	/* 2hr */
+#define RESETTING_CHG_TIME		(10 * 60 * HZ)	/* 10Min */
+#define RECHARGING_VOLTAGE	(4130 * 1000)		/* 4.13 V */
+#if defined(CONFIG_MACH_U1_KOR_LGT)
+#define HIGH_BLOCK_TEMP_ADC		395
+#define HIGH_RECOVER_TEMP_ADC	345
+#define LOW_BLOCK_TEMP_ADC		253
+#define LOW_RECOVER_TEMP_ADC	258
+#else
+#define HIGH_BLOCK_TEMP_ADC		390
+#define HIGH_RECOVER_TEMP_ADC	348
+#define LOW_BLOCK_TEMP_ADC		247
+#define LOW_RECOVER_TEMP_ADC	256
+#endif
+
+#define FG_T_SOC		0
+#define FG_T_VCELL		1
+#define FG_T_TEMPER		2
+#define FG_T_PSOC		3
+#define FG_T_VFOCV		4
+#define FG_T_AVGVCELL	5
+
+#define ADC_SAMPLING_CNT	6
+#define ADC_CH_CHGCURRENT_MAIN		0
+#define ADC_CH_CHGCURRENT_SUB		1
+#define ADC_CH_TEMPERATURE_MAIN		7
+#define ADC_CH_TEMPERATURE_SUB		6 /* 6 is near AP side */
+/* #define ADC_TOTAL_COUNT		5 */
+
+#define CURRENT_OF_FULL_CHG_MAIN	300
+#define CURRENT_OF_FULL_CHG_SUB		500
+/* all count duration = (count - 1) * poll interval */
+#define RE_CHG_COND_COUNT		4
+#define RE_CHG_MIN_COUNT		2
+#define TEMP_BLOCK_COUNT		3
+#define BAT_DET_COUNT			2
+#define FULL_CHG_COND_COUNT		2
+#define OVP_COND_COUNT			2
+#define USB_FULL_COND_COUNT		3
+#define USB_FULL_COND_VOLTAGE    4180000
+#define FULL_CHARGE_COND_VOLTAGE    4100000
+#define INIT_CHECK_COUNT	4
+#define CALL_EXCEPTION_VOLTAGE_UP    3400000
+#define CALL_EXCEPTION_VOLTAGE_DN    3200000
+
+/* for backup
+extern int get_proximity_activation_state(void);
+extern int get_proximity_approach_state(void);
+*/
+
+enum tmu_status_t {
+	TMU_STATUS_NORMAL = 0,
+	TMU_STATUS_TRIPPED,
+	TMU_STATUS_THROTTLED,
+	TMU_STATUS_WARNING,
+};
+
+enum cable_type_t {
+	CABLE_TYPE_NONE = 0,
+	CABLE_TYPE_USB,
+	CABLE_TYPE_AC,
+	CABLE_TYPE_MISC,
+};
+
+enum batt_full_t {
+	BATT_NOT_FULL = 0,
+	BATT_FULL,
+};
+
+enum {
+	BAT_NOT_DETECTED,
+	BAT_DETECTED
+};
+
+static ssize_t sec_bat_show_property(struct device *dev,
+				     struct device_attribute *attr, char *buf);
+
+static ssize_t sec_bat_store(struct device *dev,
+			     struct device_attribute *attr,
+			     const char *buf, size_t count);
+
+struct battest_info {
+	int rechg_count;
+	int full_count;
+	int full_count_sub;
+	int test_value;
+	int test_esuspend;
+	bool is_rechg_state;
+};
+
+/*
+struct adc_sample {
+	int average_adc;
+	int adc_arr[ADC_TOTAL_COUNT];
+	int index;
+};
+*/
+
+struct sec_bat_info {
+	struct device *dev;
+
+	char *fuel_gauge_name;
+	char *charger_name;
+	char *sub_charger_name;
+
+	unsigned int adc_arr_size;
+	struct sec_bat_adc_table_data *adc_table;
+	/*
+	unsigned int adc_channel;
+	struct adc_sample temper_adc_sample;
+	*/
+
+	struct power_supply psy_bat;
+	struct power_supply psy_usb;
+	struct power_supply psy_ac;
+
+	struct wake_lock vbus_wake_lock;
+	struct wake_lock monitor_wake_lock;
+	struct wake_lock cable_wake_lock;
+	struct wake_lock test_wake_lock;
+	struct wake_lock measure_wake_lock;
+
+	enum cable_type_t cable_type;
+	enum batt_full_t batt_full_status;
+
+	unsigned int batt_temp;	/* Battery Temperature (C) */
+	int batt_temp_high_cnt;
+	int batt_temp_low_cnt;
+	unsigned int batt_health;
+	unsigned int batt_vcell;
+	unsigned int batt_vfocv;
+	unsigned int batt_soc;
+	unsigned int batt_raw_soc;
+	unsigned int batt_presoc;
+	unsigned int polling_interval;
+	unsigned int measure_interval;
+	int charging_status;
+	/* int charging_full_count; */
+
+	unsigned int batt_temp_adc;
+	unsigned int batt_temp_adc_sub;
+	unsigned int batt_temp_radc;
+	unsigned int batt_temp_radc_sub;
+	unsigned int batt_current_adc;
+	unsigned int present;
+	struct battest_info	test_info;
+
+	struct s3c_adc_client *padc;
+
+	struct workqueue_struct *monitor_wqueue;
+	struct work_struct monitor_work;
+	struct delayed_work	cable_work;
+	struct delayed_work polling_work;
+	struct delayed_work measure_work;
+
+	unsigned long charging_start_time;
+	unsigned long charging_passed_time;
+	unsigned long next_check_time;
+	unsigned int recharging_status;
+	unsigned int batt_lpm_state;
+	unsigned int sub_chg_status;
+	unsigned int voice_call_state;
+	unsigned int is_call_except;
+	unsigned int charging_set_current;
+
+	struct mutex adclock;
+
+	unsigned int (*get_lpcharging_state) (void);
+	bool charging_enabled;
+	bool use_sub_charger;
+	bool sub_chg_ovp;
+	int initial_check_count;
+	struct proc_dir_entry *entry;
+
+	int batt_tmu_status;
+};
+
+static char *supply_list[] = {
+	"battery",
+};
+
+static enum power_supply_property sec_battery_props[] = {
+	POWER_SUPPLY_PROP_STATUS,
+	POWER_SUPPLY_PROP_HEALTH,
+	POWER_SUPPLY_PROP_PRESENT,
+	POWER_SUPPLY_PROP_TEMP,
+	POWER_SUPPLY_PROP_ONLINE,
+	POWER_SUPPLY_PROP_VOLTAGE_NOW,
+	POWER_SUPPLY_PROP_CAPACITY,
+	POWER_SUPPLY_PROP_TECHNOLOGY,
+};
+
+static enum power_supply_property sec_power_props[] = {
+	POWER_SUPPLY_PROP_ONLINE,
+};
+
+struct power_supply *get_power_supply_by_name(char *name)
+{
+	if (!name)
+		return (struct power_supply *)NULL;
+	else
+		return power_supply_get_by_name(name);
+}
+
+#if 0
+static int calculate_average_adc(struct sec_bat_info *info,
+				 struct adc_sample *sample, int adc)
+{
+	int i, total_adc = 0;
+	int average_adc = sample->average_adc;
+	int index = sample->index;
+
+	if (adc < 0 || adc == 0) {
+		dev_err(info->dev, "%s: invalid adc : %d\n", __func__, adc);
+		return 0;
+	}
+
+	if (!average_adc) {
+		average_adc = adc;
+		for (i = 0; i < ADC_TOTAL_COUNT; i++)
+			sample->adc_arr[i] = adc;
+	} else {
+		sample->index = ++index >= ADC_TOTAL_COUNT ? 0 : index;
+		sample->adc_arr[sample->index] = adc;
+		for (i = 0; i < ADC_TOTAL_COUNT; i++)
+			total_adc += sample->adc_arr[i];
+
+		average_adc = total_adc / ADC_TOTAL_COUNT;
+	}
+
+	sample->average_adc = average_adc;
+	dev_dbg(info->dev, "%s: i(%d) adc=%d, avg_adc=%d\n", __func__,
+		sample->index, adc, average_adc);
+
+	return average_adc;
+}
+#endif
+
+static int sec_bat_check_vf(struct sec_bat_info *info)
+{
+	int health = info->batt_health;
+
+	if (info->present == 0) {
+		if (info->test_info.test_value == 999) {
+			pr_info("test case : %d\n", info->test_info.test_value);
+			health = POWER_SUPPLY_HEALTH_UNKNOWN;
+		} else
+			health = POWER_SUPPLY_HEALTH_DEAD;
+	} else {
+		health = POWER_SUPPLY_HEALTH_GOOD;
+	}
+
+	/* update health */
+	if (health != info->batt_health) {
+		if (health == POWER_SUPPLY_HEALTH_UNKNOWN ||
+			health == POWER_SUPPLY_HEALTH_DEAD){
+			info->batt_health = health;
+			pr_info("vf error update\n");
+		} else if (info->batt_health != POWER_SUPPLY_HEALTH_OVERHEAT &&
+			info->batt_health != POWER_SUPPLY_HEALTH_COLD &&
+			health == POWER_SUPPLY_HEALTH_GOOD) {
+			info->batt_health = health;
+			pr_info("recovery form vf error\n");
+		}
+	}
+
+	return 0;
+}
+
+static int sec_bat_check_detbat(struct sec_bat_info *info)
+{
+	struct power_supply *psy = get_power_supply_by_name(info->charger_name);
+	union power_supply_propval value;
+	static int cnt;
+	int vf_state = BAT_DETECTED;
+	int ret;
+
+	if (!psy) {
+		dev_err(info->dev, "%s: fail to get charger ps\n", __func__);
+		return -ENODEV;
+	}
+
+	ret = psy->get_property(psy, POWER_SUPPLY_PROP_PRESENT, &value);
+	if (ret < 0) {
+		dev_err(info->dev, "%s: fail to get status(%d)\n",
+			__func__, ret);
+		return -ENODEV;
+	}
+
+	if ((info->cable_type != CABLE_TYPE_NONE) &&
+		(value.intval == BAT_NOT_DETECTED)) {
+		if (cnt <= BAT_DET_COUNT)
+			cnt++;
+		if (cnt >= BAT_DET_COUNT)
+			vf_state = BAT_NOT_DETECTED;
+		else
+			vf_state = BAT_DETECTED;
+	} else {
+		vf_state = BAT_DETECTED;
+		cnt = 0;
+	}
+
+	if (info->present == 1 &&
+		vf_state == BAT_NOT_DETECTED) {
+		pr_info("detbat state(->%d) changed\n",	vf_state);
+		info->present = 0;
+		cancel_work_sync(&info->monitor_work);
+		wake_lock(&info->monitor_wake_lock);
+		queue_work(info->monitor_wqueue, &info->monitor_work);
+	} else if (info->present == 0 &&
+		vf_state == BAT_DETECTED) {
+		pr_info("detbat state(->%d) changed\n", vf_state);
+		info->present = 1;
+		cancel_work_sync(&info->monitor_work);
+		wake_lock(&info->monitor_wake_lock);
+		queue_work(info->monitor_wqueue, &info->monitor_work);
+	}
+
+	return value.intval;
+}
+
+static int sec_bat_get_fuelgauge_data(struct sec_bat_info *info, int type)
+{
+	struct power_supply *psy
+	    = get_power_supply_by_name(info->fuel_gauge_name);
+	union power_supply_propval value;
+
+	if (!psy) {
+		dev_err(info->dev, "%s: fail to get fuel gauge ps\n", __func__);
+		return -ENODEV;
+	}
+
+	switch (type) {
+	case FG_T_VCELL:
+		value.intval = 0;	/*vcell */
+		psy->get_property(psy, POWER_SUPPLY_PROP_VOLTAGE_NOW, &value);
+		break;
+	case FG_T_VFOCV:
+		value.intval = 1;	/*vfocv */
+		psy->get_property(psy, POWER_SUPPLY_PROP_VOLTAGE_NOW, &value);
+		break;
+	case FG_T_AVGVCELL:
+		psy->get_property(psy, POWER_SUPPLY_PROP_VOLTAGE_AVG, &value);
+		break;
+	case FG_T_SOC:
+		value.intval = 0;	/*normal soc */
+		psy->get_property(psy, POWER_SUPPLY_PROP_CAPACITY, &value);
+		break;
+	case FG_T_PSOC:
+		value.intval = 1;	/*raw soc */
+		psy->get_property(psy, POWER_SUPPLY_PROP_CAPACITY, &value);
+		break;
+	case FG_T_TEMPER:
+		psy->get_property(psy, POWER_SUPPLY_PROP_TEMP, &value);
+		break;
+	default:
+		return -ENODEV;
+	}
+
+	return value.intval;
+}
+
+static int sec_bat_get_property(struct power_supply *ps,
+				enum power_supply_property psp,
+				union power_supply_propval *val)
+{
+	struct sec_bat_info *info = container_of(ps, struct sec_bat_info,
+						 psy_bat);
+
+	switch (psp) {
+	case POWER_SUPPLY_PROP_STATUS:
+		if (info->test_info.test_value == 999) {
+			pr_info("batt test case : %d\n",
+					info->test_info.test_value);
+			val->intval = POWER_SUPPLY_STATUS_UNKNOWN;
+		} else
+			val->intval = info->charging_status;
+		break;
+	case POWER_SUPPLY_PROP_HEALTH:
+		val->intval = info->batt_health;
+		break;
+	case POWER_SUPPLY_PROP_PRESENT:
+		val->intval = info->present;
+		break;
+	case POWER_SUPPLY_PROP_TEMP:
+		val->intval = info->batt_temp;
+		break;
+	case POWER_SUPPLY_PROP_ONLINE:
+		/* battery is always online */
+		/* val->intval = 1; */
+		val->intval = info->cable_type;
+		break;
+	case POWER_SUPPLY_PROP_VOLTAGE_NOW:
+		val->intval = info->batt_vcell;
+		if (val->intval == -1)
+			return -EINVAL;
+		break;
+	case POWER_SUPPLY_PROP_CAPACITY:
+		if (info->charging_status == POWER_SUPPLY_STATUS_FULL) {
+			val->intval = 100;
+			break;
+		}
+		val->intval = info->batt_soc;
+		if (val->intval == -1)
+			return -EINVAL;
+		break;
+	case POWER_SUPPLY_PROP_TECHNOLOGY:
+		val->intval = POWER_SUPPLY_TECHNOLOGY_LION;
+		break;
+	default:
+		return -EINVAL;
+	}
+	return 0;
+}
+
+static int sec_bat_handle_sub_charger_topoff(struct sec_bat_info *info)
+{
+	struct power_supply *psy_sub =
+	    get_power_supply_by_name(info->sub_charger_name);
+	union power_supply_propval value;
+	int ret = 0;
+
+	if (!psy_sub) {
+		dev_err(info->dev, "%s: fail to get sub charger ps\n",
+					__func__);
+		return -ENODEV;
+	}
+
+	if (info->batt_full_status == BATT_NOT_FULL) {
+		info->charging_status = POWER_SUPPLY_STATUS_FULL;
+		info->batt_full_status = BATT_FULL;
+		info->recharging_status = false;
+		info->charging_passed_time = 0;
+		info->charging_start_time = 0;
+		/* disable charging */
+		value.intval = POWER_SUPPLY_STATUS_DISCHARGING;
+		ret = psy_sub->set_property(psy_sub, POWER_SUPPLY_PROP_STATUS,
+			&value);
+		info->charging_enabled = false;
+	}
+	return ret;
+}
+
+static int sec_bat_set_property(struct power_supply *ps,
+				enum power_supply_property psp,
+				const union power_supply_propval *val)
+{
+	struct sec_bat_info *info = container_of(ps, struct sec_bat_info,
+						 psy_bat);
+	struct power_supply *psy = get_power_supply_by_name(info->charger_name);
+	union power_supply_propval value;
+
+	switch (psp) {
+	case POWER_SUPPLY_PROP_STATUS:
+		dev_info(info->dev, "%s: topoff intr\n", __func__);
+		if (val->intval != POWER_SUPPLY_STATUS_FULL)
+			return -EINVAL;
+
+		if (info->use_sub_charger) {
+			if (info->cable_type == CABLE_TYPE_USB ||
+					info->cable_type == CABLE_TYPE_MISC)
+				sec_bat_handle_sub_charger_topoff(info);
+			break;
+		}
+
+		if (info->batt_full_status == BATT_NOT_FULL) {
+			info->recharging_status = false;
+			info->batt_full_status = BATT_FULL;
+			info->charging_status = POWER_SUPPLY_STATUS_FULL;
+			/* disable charging */
+			value.intval = POWER_SUPPLY_STATUS_DISCHARGING;
+			psy->set_property(psy, POWER_SUPPLY_PROP_STATUS,
+					  &value);
+			info->charging_enabled = false;
+		}
+#if 0				/* for reference */
+		if (info->batt_full_status == BATT_NOT_FULL) {
+			info->batt_full_status = BATT_1ST_FULL;
+			info->charging_status = POWER_SUPPLY_STATUS_FULL;
+			/* TODO: set topoff current 60mA */
+			value.intval = 120;
+			psy->set_property(psy, POWER_SUPPLY_PROP_CHARGE_FULL,
+					  &value);
+		} else {
+			info->batt_full_status = BATT_2ND_FULL;
+			info->recharging_status = false;
+			/* disable charging */
+			value.intval = POWER_SUPPLY_STATUS_DISCHARGING;
+			psy->set_property(psy, POWER_SUPPLY_PROP_STATUS,
+					  &value);
+		}
+#endif
+		break;
+	case POWER_SUPPLY_PROP_CAPACITY:
+		dev_info(info->dev, "%s: refresh battery data\n", __func__);
+		wake_lock(&info->monitor_wake_lock);
+		queue_work(info->monitor_wqueue, &info->monitor_work);
+
+		break;
+	case POWER_SUPPLY_PROP_CAPACITY_LEVEL:
+		/* TODO: lowbatt interrupt: called by fuel gauge */
+		dev_info(info->dev, "%s: lowbatt intr\n", __func__);
+		if (val->intval != POWER_SUPPLY_CAPACITY_LEVEL_CRITICAL)
+			return -EINVAL;
+		wake_lock(&info->monitor_wake_lock);
+		queue_work(info->monitor_wqueue, &info->monitor_work);
+
+		break;
+	case POWER_SUPPLY_PROP_ONLINE:
+		/* cable is attached or detached. called by USB switch(MUIC) */
+		dev_info(info->dev, "%s: cable was changed(%d)\n", __func__,
+			 val->intval);
+		switch (val->intval) {
+		case POWER_SUPPLY_TYPE_BATTERY:
+			info->cable_type = CABLE_TYPE_NONE;
+			break;
+		case POWER_SUPPLY_TYPE_MAINS:
+			info->cable_type = CABLE_TYPE_AC;
+			break;
+		case POWER_SUPPLY_TYPE_USB:
+			info->cable_type = CABLE_TYPE_USB;
+			break;
+		case POWER_SUPPLY_TYPE_MISC:
+			info->cable_type = CABLE_TYPE_MISC;
+			break;
+		default:
+			return -EINVAL;
+		}
+		wake_lock(&info->cable_wake_lock);
+		/* TODO : fix delay time */
+		queue_delayed_work(info->monitor_wqueue, &info->cable_work, 0);
+		break;
+	case POWER_SUPPLY_PROP_HEALTH:
+		/* call by TMU driver
+		 * alarm for abnormal temperature increasement
+		 */
+		info->batt_tmu_status = val->intval;
+
+		wake_lock(&info->monitor_wake_lock);
+		queue_work(info->monitor_wqueue, &info->monitor_work);
+
+		dev_info(info->dev, "%s: TMU status has been changed(%d)\n",
+			__func__, info->batt_tmu_status);
+
+		break;
+	default:
+		return -EINVAL;
+	}
+	return 0;
+}
+
+static int sec_usb_get_property(struct power_supply *ps,
+				enum power_supply_property psp,
+				union power_supply_propval *val)
+{
+	struct sec_bat_info *info = container_of(ps, struct sec_bat_info,
+						 psy_usb);
+
+	if (psp != POWER_SUPPLY_PROP_ONLINE)
+		return -EINVAL;
+
+	/* Set enable=1 only if the USB charger is connected */
+	val->intval = (info->cable_type == CABLE_TYPE_USB);
+
+	return 0;
+}
+
+static int sec_ac_get_property(struct power_supply *ps,
+			       enum power_supply_property psp,
+			       union power_supply_propval *val)
+{
+	struct sec_bat_info *info = container_of(ps, struct sec_bat_info,
+						 psy_ac);
+
+	if (psp != POWER_SUPPLY_PROP_ONLINE)
+		return -EINVAL;
+
+	/* Set enable=1 only if the AC charger is connected */
+	val->intval = (info->cable_type == CABLE_TYPE_AC) ||
+			(info->cable_type == CABLE_TYPE_MISC);
+
+	return 0;
+}
+
+static int sec_bat_get_adc_data(struct sec_bat_info *info, int adc_ch)
+{
+	int adc_data;
+	int adc_max = 0;
+	int adc_min = 0;
+	int adc_total = 0;
+	int i;
+	int err_value;
+
+	for (i = 0; i < ADC_SAMPLING_CNT; i++) {
+		adc_data = s3c_adc_read(info->padc, adc_ch);
+
+		if (adc_data < 0) {
+			pr_err("err(%d) returned, skip adc read\n", adc_data);
+			err_value = adc_data;
+			goto err;
+		}
+
+		if (i != 0) {
+			if (adc_data > adc_max)
+				adc_max = adc_data;
+			else if (adc_data < adc_min)
+				adc_min = adc_data;
+		} else {
+			adc_max = adc_data;
+			adc_min = adc_data;
+		}
+		adc_total += adc_data;
+	}
+
+	return (adc_total - adc_max - adc_min) / (ADC_SAMPLING_CNT - 2);
+err:
+	return err_value;
+}
+
+static inline int s3c_read_temper_adc(struct sec_bat_info *info)
+{
+	int adc;
+
+	mutex_lock(&info->adclock);
+	adc = sec_bat_get_adc_data(info, ADC_CH_TEMPERATURE_MAIN);
+	mutex_unlock(&info->adclock);
+	if (adc <= 0)
+		adc = info->batt_temp_adc;
+	info->batt_temp_adc = adc;
+
+	return adc;
+}
+
+static inline int s3c_read_temper_adc_sub(struct sec_bat_info *info)
+{
+	int adc;
+	int adc_tmp1 = 0;
+	int adc_tmp2 = 0;
+	unsigned int temp_radc_sub = 0;
+
+	mutex_lock(&info->adclock);
+	adc = sec_bat_get_adc_data(info, ADC_CH_TEMPERATURE_SUB);
+	mutex_unlock(&info->adclock);
+	if (adc <= 0)
+		adc = info->batt_temp_adc_sub;
+	info->batt_temp_adc_sub = adc;
+
+	temp_radc_sub = info->batt_temp_adc_sub;
+	adc_tmp1 = temp_radc_sub * 10;
+	adc_tmp2 = (40950 - adc_tmp1);
+	temp_radc_sub = adc_tmp2 / 100;
+	if ((adc_tmp2 % 10) >= 5)
+		temp_radc_sub += 1;
+
+	info->batt_temp_radc_sub = temp_radc_sub;
+	/* pr_info("[battery] lcd temper : %d, rescale : %d\n",
+			info->batt_temp_adc_sub, temp_radc_sub); */
+
+	return adc;
+}
+
+static unsigned long sec_rescale_temp_adc(struct sec_bat_info *info)
+{
+	int adc_tmp = info->batt_temp_adc;
+	int adc_tmp1 = 0;
+	int adc_tmp2 = 0;
+
+	adc_tmp1 = adc_tmp * 10;
+	adc_tmp2 = (40950 - adc_tmp1);
+	adc_tmp = adc_tmp2 / 100;
+	if ((adc_tmp2 % 10) >= 5)
+		adc_tmp += 1;
+
+	info->batt_temp_radc = adc_tmp;
+
+	/* pr_info("[battery] bat temper : %d, rescale : %d\n",
+			info->batt_temp_adc, adc_tmp); */
+
+	return adc_tmp;
+}
+
+static int sec_bat_check_temper(struct sec_bat_info *info)
+{
+	struct power_supply *psy
+	    = get_power_supply_by_name(info->fuel_gauge_name);
+	union power_supply_propval value;
+	int ret;
+	int temp;
+	int low = 0;
+	int high = 0;
+	int mid = 0;
+
+	if (!info->adc_table || !info->adc_arr_size) {
+		/* using fake temp */
+		temp = 300;
+		info->batt_temp = temp;
+		goto skip_tupdate;
+	}
+
+	high = info->adc_arr_size - 1;
+
+	while (low <= high) {
+		mid = (low + high) / 2;
+		if (info->adc_table[mid].adc > info->batt_temp_adc)
+			high = mid - 1;
+		else if (info->adc_table[mid].adc < info->batt_temp_adc)
+			low = mid + 1;
+		else
+			break;
+	}
+	temp = info->adc_table[mid].temperature;
+	/* pr_info("%s : temperature form adc table : %d\n", __func__, temp); */
+	info->batt_temp = temp;
+
+skip_tupdate:
+	/* Set temperature to fuel gauge */
+	if (info->fuel_gauge_name) {
+		value.intval = info->batt_temp / 10;
+		/* value.intval = temp / 10; */
+		ret = psy->set_property(psy, POWER_SUPPLY_PROP_TEMP, &value);
+		if (ret) {
+			dev_err(info->dev, "%s: fail to set temperature(%d)\n",
+				__func__, ret);
+			return ret;
+		}
+	}
+
+	return 0;
+}
+
+static int sec_bat_check_temper_adc(struct sec_bat_info *info)
+{
+	int temp_adc = s3c_read_temper_adc(info);
+	int rescale_adc = 0;
+	int health = info->batt_health;
+
+	rescale_adc = sec_rescale_temp_adc(info);
+
+	if (info->test_info.test_value == 1) {
+		pr_info("test case : %d\n", info->test_info.test_value);
+		rescale_adc = HIGH_BLOCK_TEMP_ADC + 1;
+		if (info->cable_type == CABLE_TYPE_NONE)
+			rescale_adc = HIGH_RECOVER_TEMP_ADC - 1;
+		info->batt_temp_radc = rescale_adc;
+	}
+
+	if (info->cable_type == CABLE_TYPE_NONE ||
+		info->test_info.test_value == 999) {
+		info->batt_temp_high_cnt = 0;
+		info->batt_temp_low_cnt = 0;
+		health = POWER_SUPPLY_HEALTH_GOOD;
+		goto skip_hupdate;
+	}
+
+	if (rescale_adc >= HIGH_BLOCK_TEMP_ADC) {
+		if (health != POWER_SUPPLY_HEALTH_OVERHEAT)
+			if (info->batt_temp_high_cnt <= TEMP_BLOCK_COUNT)
+				info->batt_temp_high_cnt++;
+	} else if (rescale_adc <= HIGH_RECOVER_TEMP_ADC &&
+		rescale_adc >= LOW_RECOVER_TEMP_ADC) {
+		if (health == POWER_SUPPLY_HEALTH_OVERHEAT ||
+		    health == POWER_SUPPLY_HEALTH_COLD) {
+			info->batt_temp_high_cnt = 0;
+			info->batt_temp_low_cnt = 0;
+		}
+	} else if (rescale_adc <= LOW_BLOCK_TEMP_ADC) {
+		if (health != POWER_SUPPLY_HEALTH_COLD)
+			if (info->batt_temp_low_cnt <= TEMP_BLOCK_COUNT)
+				info->batt_temp_low_cnt++;
+	}
+
+	if (info->batt_temp_high_cnt >= TEMP_BLOCK_COUNT)
+		health = POWER_SUPPLY_HEALTH_OVERHEAT;
+	else if (info->batt_temp_low_cnt >= TEMP_BLOCK_COUNT)
+		health = POWER_SUPPLY_HEALTH_COLD;
+	else
+		health = POWER_SUPPLY_HEALTH_GOOD;
+
+skip_hupdate:
+	if (info->batt_health != POWER_SUPPLY_HEALTH_UNKNOWN &&
+		info->batt_health != POWER_SUPPLY_HEALTH_DEAD &&
+		health != info->batt_health) {
+		info->batt_health = health;
+		cancel_work_sync(&info->monitor_work);
+		wake_lock(&info->monitor_wake_lock);
+		queue_work(info->monitor_wqueue, &info->monitor_work);
+	}
+
+	return 0;
+}
+
+
+
+static void check_chgcurrent_sub(struct sec_bat_info *info)
+{
+	int chg_current_adc = 0;
+
+	mutex_lock(&info->adclock);
+	chg_current_adc = sec_bat_get_adc_data(info, ADC_CH_CHGCURRENT_SUB);
+	mutex_unlock(&info->adclock);
+	if (chg_current_adc < 0)
+		chg_current_adc = info->batt_current_adc;
+	info->batt_current_adc = chg_current_adc;
+
+	dev_dbg(info->dev,
+		"[battery] charging current = %d\n", info->batt_current_adc);
+}
+
+/* only for sub-charger */
+static void sec_check_chgcurrent(struct sec_bat_info *info)
+{
+	static int cnt;
+
+	if (info->charging_enabled && info->cable_type == CABLE_TYPE_AC) {
+		check_chgcurrent_sub(info);
+		/* AGAIN_FEATURE */
+		if (info->batt_current_adc <= CURRENT_OF_FULL_CHG_SUB)
+			check_chgcurrent_sub(info);
+
+		/* if (info->test_info.test_value == 2)
+		{
+			pr_info("batt test case : %d\n",
+						info->test_info.test_value);
+			info->batt_current_adc = CURRENT_OF_FULL_CHG_SUB - 1;
+			cnt = FULL_CHG_COND_COUNT;
+		} else */
+		if (info->test_info.test_value == 3) {
+			pr_info("batt test case : %d\n",
+						info->test_info.test_value);
+			info->batt_current_adc = CURRENT_OF_FULL_CHG_SUB + 1;
+			cnt = 0;
+		}
+
+		if (info->batt_vcell >= FULL_CHARGE_COND_VOLTAGE) {
+			if (info->batt_current_adc <= CURRENT_OF_FULL_CHG_SUB) {
+				cnt++;
+				pr_info("full state? %d, %d\n",
+						info->batt_current_adc, cnt);
+				if (cnt >= FULL_CHG_COND_COUNT) {
+					pr_info("full state!! %d/%d\n",
+						cnt, FULL_CHG_COND_COUNT);
+					sec_bat_handle_sub_charger_topoff(info);
+					cnt = 0;
+				}
+			}
+		} else
+			cnt = 0;
+	} else {
+		cnt = 0;
+		info->batt_current_adc = 0;
+	}
+	info->test_info.full_count = cnt;
+}
+
+
+static int sec_check_recharging(struct sec_bat_info *info)
+{
+	static int cnt;
+
+	if (info->batt_vcell > RECHARGING_VOLTAGE) {
+		cnt = 0;
+		return 0;
+	} else {
+		/* AGAIN_FEATURE */
+		info->batt_vcell = sec_bat_get_fuelgauge_data(info, FG_T_VCELL);
+		if (info->batt_vcell <= RECHARGING_VOLTAGE) {
+			cnt++;
+			if (cnt >= RE_CHG_COND_COUNT) {
+				cnt = 0;
+				info->test_info.is_rechg_state = true;
+				return 1;
+			} else if (cnt >= RE_CHG_MIN_COUNT &&
+				info->batt_vcell <= FULL_CHARGE_COND_VOLTAGE) {
+				cnt = 0;
+				info->test_info.is_rechg_state = true;
+				return 1;
+			} else
+				return 0;
+		} else {
+			cnt = 0;
+			return 0;
+		}
+	}
+	info->test_info.rechg_count = cnt;
+}
+
+static void sec_bat_update_info(struct sec_bat_info *info)
+{
+	info->batt_presoc = info->batt_soc;
+	info->batt_raw_soc = sec_bat_get_fuelgauge_data(info, FG_T_PSOC);
+	info->batt_soc = sec_bat_get_fuelgauge_data(info, FG_T_SOC);
+	info->batt_vcell = sec_bat_get_fuelgauge_data(info, FG_T_VCELL);
+	info->batt_vfocv = sec_bat_get_fuelgauge_data(info, FG_T_VFOCV);
+	/* info->batt_temp = sec_bat_get_fuelgauge_data(info, FG_T_TEMPER); */
+	/* pr_info("temperature form FG : %d\n", info->batt_temp); */
+}
+
+static int sec_bat_enable_charging_main(struct sec_bat_info *info, bool enable)
+{
+	struct power_supply *psy = get_power_supply_by_name(info->charger_name);
+	union power_supply_propval val_type, val_chg_current, val_topoff;
+	int ret;
+
+	if (!psy) {
+		dev_err(info->dev, "%s: fail to get charger ps\n", __func__);
+		return -ENODEV;
+	}
+
+	info->batt_full_status = BATT_NOT_FULL;
+
+	if (enable) {		/* Enable charging */
+		switch (info->cable_type) {
+		case CABLE_TYPE_USB:
+			val_type.intval = POWER_SUPPLY_STATUS_CHARGING;
+			val_chg_current.intval = 450;	/* mA */
+			break;
+		case CABLE_TYPE_AC:
+			val_type.intval = POWER_SUPPLY_STATUS_CHARGING;
+			val_chg_current.intval = 650;	/* mA */
+			break;
+		case CABLE_TYPE_MISC:
+			val_type.intval = POWER_SUPPLY_STATUS_CHARGING;
+			val_chg_current.intval = 450;	/* mA */
+			break;
+		default:
+			dev_err(info->dev, "%s: Invalid func use\n", __func__);
+			return -EINVAL;
+		}
+
+		/* Set charging current */
+		ret = psy->set_property(psy, POWER_SUPPLY_PROP_CURRENT_NOW,
+					&val_chg_current);
+		if (ret) {
+			dev_err(info->dev, "%s: fail to set charging cur(%d)\n",
+				__func__, ret);
+			return ret;
+		}
+
+		/* Set topoff current */
+		/* mA */
+		val_topoff.intval = 200;
+		ret = psy->set_property(psy, POWER_SUPPLY_PROP_CHARGE_FULL,
+					&val_topoff);
+		if (ret) {
+			dev_err(info->dev, "%s: fail to set topoff cur(%d)\n",
+				__func__, ret);
+			return ret;
+		}
+
+		info->charging_start_time = jiffies;
+	} else {		/* Disable charging */
+		val_type.intval = POWER_SUPPLY_STATUS_DISCHARGING;
+		info->charging_passed_time = 0;
+		info->charging_start_time = 0;
+	}
+
+	ret = psy->set_property(psy, POWER_SUPPLY_PROP_STATUS, &val_type);
+	if (ret) {
+		dev_err(info->dev, "%s: fail to set charging status(%d)\n",
+			__func__, ret);
+		return ret;
+	}
+
+	info->charging_enabled = enable;
+
+	return 0;
+}
+
+static int sec_bat_enable_charging_sub(struct sec_bat_info *info, bool enable)
+{
+	struct power_supply *psy_main =
+	    get_power_supply_by_name(info->charger_name);
+	struct power_supply *psy_sub =
+	    get_power_supply_by_name(info->sub_charger_name);
+	union power_supply_propval val_type, val_chg_current;
+	int ret;
+
+	if (!psy_main || !psy_sub) {
+		dev_err(info->dev, "%s: fail to get charger ps\n", __func__);
+		return -ENODEV;
+	}
+
+	info->batt_full_status = BATT_NOT_FULL;
+
+	if (enable) {		/* Enable charging */
+		val_type.intval = POWER_SUPPLY_STATUS_DISCHARGING;
+		ret = psy_main->set_property(psy_main, POWER_SUPPLY_PROP_STATUS,
+					     &val_type);
+		if (ret) {
+			dev_err(info->dev, "%s: fail to set charging"
+				" status-main(%d)\n", __func__, ret);
+			return ret;
+		}
+
+		switch (info->cable_type) {
+		case CABLE_TYPE_USB:
+			val_type.intval = POWER_SUPPLY_STATUS_CHARGING;
+			val_chg_current.intval = 450;	/* mA */
+			break;
+		case CABLE_TYPE_AC:
+			val_type.intval = POWER_SUPPLY_STATUS_CHARGING;
+			val_chg_current.intval = 650;	/* mA */
+			break;
+		case CABLE_TYPE_MISC:
+			val_type.intval = POWER_SUPPLY_STATUS_CHARGING;
+			val_chg_current.intval = 450;	/* mA */
+			break;
+		default:
+			dev_err(info->dev, "%s: Invalid func use\n", __func__);
+			return -EINVAL;
+		}
+
+		info->charging_set_current = val_chg_current.intval;
+
+		/* Set charging current */
+		ret = psy_sub->set_property(psy_sub,
+					    POWER_SUPPLY_PROP_CURRENT_NOW,
+					    &val_chg_current);
+		if (ret) {
+			dev_err(info->dev, "%s: fail to set charging cur(%d)\n",
+				__func__, ret);
+			return ret;
+		}
+
+		info->charging_start_time = jiffies;
+		info->next_check_time =
+			info->charging_start_time + RESETTING_CHG_TIME;
+	} else {		/* Disable charging */
+		val_type.intval = POWER_SUPPLY_STATUS_DISCHARGING;
+		ret = psy_main->set_property(psy_main, POWER_SUPPLY_PROP_STATUS,
+					     &val_type);
+		if (ret) {
+			dev_err(info->dev, "%s: fail to set charging"
+				" status-main(%d)\n", __func__, ret);
+			return ret;
+		}
+		info->next_check_time = 0;
+		info->charging_passed_time = 0;
+		info->charging_set_current = 0;
+		info->charging_start_time = 0;
+	}
+
+	ret = psy_sub->set_property(psy_sub, POWER_SUPPLY_PROP_STATUS,
+				    &val_type);
+	if (ret) {
+		dev_err(info->dev, "%s: fail to set charging status(%d)\n",
+			__func__, ret);
+		return ret;
+	}
+
+	info->charging_enabled = enable;
+
+	return 0;
+}
+
+static int sec_bat_enable_charging(struct sec_bat_info *info, bool enable)
+{
+	if (info->use_sub_charger)
+		return sec_bat_enable_charging_sub(info, enable);
+	else
+		return sec_bat_enable_charging_main(info, enable);
+}
+
+static void sec_bat_cable_work(struct work_struct *work)
+{
+	struct sec_bat_info *info = container_of(work, struct sec_bat_info,
+							cable_work.work);
+
+	switch (info->cable_type) {
+	case CABLE_TYPE_NONE:
+		/* TODO : check DCIN state again*/
+		info->sub_chg_ovp = false;
+		info->batt_full_status = BATT_NOT_FULL;
+		info->recharging_status = false;
+		info->test_info.is_rechg_state = false;
+		info->charging_start_time = 0;
+		info->charging_status = POWER_SUPPLY_STATUS_DISCHARGING;
+		sec_bat_enable_charging(info, false);
+		wake_lock_timeout(&info->vbus_wake_lock, HZ * 5);
+		cancel_delayed_work(&info->measure_work);
+		info->measure_interval = MEASURE_DSG_INTERVAL;
+		wake_lock(&info->measure_wake_lock);
+		queue_delayed_work(info->monitor_wqueue,
+				&info->measure_work, 0);
+		/* schedule_delayed_work(&info->measure_work, 0); */
+		break;
+	case CABLE_TYPE_USB:
+	case CABLE_TYPE_AC:
+	case CABLE_TYPE_MISC:
+		/* TODO : check DCIN state again*/
+		info->charging_status = POWER_SUPPLY_STATUS_CHARGING;
+		sec_bat_enable_charging(info, true);
+		wake_lock(&info->vbus_wake_lock);
+		cancel_delayed_work(&info->measure_work);
+		info->measure_interval = MEASURE_CHG_INTERVAL;
+		wake_lock(&info->measure_wake_lock);
+		queue_delayed_work(info->monitor_wqueue,
+				&info->measure_work, 0);
+		/* schedule_delayed_work(&info->measure_work, 0); */
+		break;
+	default:
+		dev_err(info->dev, "%s: Invalid cable type\n", __func__);
+		break;
+	}
+
+	power_supply_changed(&info->psy_ac);
+	power_supply_changed(&info->psy_usb);
+	/* TBD */
+	/*
+	wake_lock(&info->monitor_wake_lock);
+	queue_work(info->monitor_wqueue, &info->monitor_work);
+	*/
+
+	wake_unlock(&info->cable_wake_lock);
+}
+
+static void sec_bat_charging_time_management(struct sec_bat_info *info)
+{
+	unsigned long charging_time;
+
+	if (info->charging_start_time == 0) {
+		dev_dbg(info->dev, "%s: charging_start_time has never"
+			" been used since initializing\n", __func__);
+		return;
+	}
+
+	if (jiffies >= info->charging_start_time)
+		charging_time = jiffies - info->charging_start_time;
+	else
+		charging_time = 0xFFFFFFFF - info->charging_start_time
+		    + jiffies;
+
+	info->charging_passed_time = charging_time;
+
+	switch (info->charging_status) {
+	case POWER_SUPPLY_STATUS_FULL:
+		if (time_after(charging_time, (unsigned long)RECHARGING_TIME) &&
+		    info->recharging_status == true) {
+			sec_bat_enable_charging(info, false);
+			info->recharging_status = false;
+			dev_info(info->dev, "%s: Recharging timer expired\n",
+				 __func__);
+		}
+		break;
+	case POWER_SUPPLY_STATUS_CHARGING:
+		if (time_after(charging_time,
+			       (unsigned long)FULL_CHARGING_TIME)) {
+			sec_bat_enable_charging(info, false);
+			info->charging_status = POWER_SUPPLY_STATUS_FULL;
+
+			dev_info(info->dev, "%s: Charging timer expired\n",
+				 __func__);
+		}
+		break;
+	default:
+		dev_info(info->dev, "%s: Undefine Battery Status\n", __func__);
+		return;
+	}
+
+	dev_dbg(info->dev, "Time past : %u secs\n",
+		jiffies_to_msecs(charging_time) / 1000);
+
+	return;
+}
+
+
+static void sec_bat_check_ing_level_trigger(struct sec_bat_info *info)
+{
+	struct power_supply *psy_sub =
+	    get_power_supply_by_name(info->sub_charger_name);
+	union power_supply_propval value;
+	union power_supply_propval val_type, val_chg_current;
+	static int full_cnt;
+	static int ovp_cnt;
+	int ret;
+
+	ret = psy_sub->get_property(psy_sub, POWER_SUPPLY_PROP_STATUS, &value);
+
+	if (ret < 0) {
+		dev_err(info->dev, "%s: fail to get status(%d)\n",
+			__func__, ret);
+		return;
+	}
+
+	info->sub_chg_status = value.intval;
+
+	if (info->charging_enabled) {
+		switch (value.intval) {
+		case POWER_SUPPLY_STATUS_DISCHARGING: /* overvoltage */
+			ovp_cnt++;
+			if (ovp_cnt >= OVP_COND_COUNT) {
+				pr_info("over/under voltage detected!! (%d)\n",
+					ovp_cnt);
+			    info->sub_chg_ovp = true;
+				info->batt_full_status = BATT_NOT_FULL;
+				info->recharging_status = false;
+				info->test_info.is_rechg_state = false;
+				info->charging_start_time = 0;
+				info->charging_status =
+					POWER_SUPPLY_STATUS_DISCHARGING;
+				sec_bat_enable_charging(info, false);
+			}
+			break;
+		case POWER_SUPPLY_STATUS_NOT_CHARGING: /* full */
+			if (info->cable_type == CABLE_TYPE_USB ||
+					info->cable_type == CABLE_TYPE_MISC) {
+				pr_info("usb full cnt = %d\n", full_cnt);
+				full_cnt++;
+				if (full_cnt >= USB_FULL_COND_COUNT &&
+					info->batt_vcell >=
+						USB_FULL_COND_VOLTAGE) {
+					full_cnt = 0;
+					sec_bat_handle_sub_charger_topoff(info);
+				}
+			} else {
+				full_cnt = 0;
+			}
+			break;
+		case POWER_SUPPLY_STATUS_CHARGING: /* charging */
+			dev_dbg(info->dev, "%s : passed_time(%lu) > next_time(%lu)\n",
+					__func__, info->charging_passed_time,
+					info->next_check_time);
+			if (time_after(info->charging_passed_time,
+					info->next_check_time)) {
+				info->next_check_time =
+					info->charging_passed_time +
+							RESETTING_CHG_TIME;
+				if (info->is_call_except) {
+					pr_info("call exception case, skip resetting\n");
+					full_cnt = 0;
+					ovp_cnt = 0;
+					break;
+				}
+
+				if (info->cable_type == CABLE_TYPE_AC) {
+					val_type.intval =
+						POWER_SUPPLY_STATUS_CHARGING;
+					val_chg_current.intval = 650;	/* mA */
+
+					ret = psy_sub->set_property(psy_sub,
+						POWER_SUPPLY_PROP_CURRENT_NOW,
+						&val_chg_current);
+					if (ret) {
+						dev_err(info->dev, "%s: fail to set charging cur(%d)\n",
+							__func__, ret);
+					}
+
+					ret = psy_sub->set_property(psy_sub,
+						POWER_SUPPLY_PROP_STATUS,
+						&val_type);
+					if (ret) {
+						dev_err(info->dev, "%s: fail to set charging status(%d)\n",
+							__func__, ret);
+					}
+
+					dev_info(info->dev, "%s: reset charging current\n",
+						 __func__);
+				}
+			}
+			full_cnt = 0;
+			ovp_cnt = 0;
+			break;
+		default:
+			full_cnt = 0;
+			ovp_cnt = 0;
+		}
+	} else {
+		if (info->charging_status == POWER_SUPPLY_STATUS_DISCHARGING &&
+				info->sub_chg_status ==
+					POWER_SUPPLY_STATUS_NOT_CHARGING &&
+				info->sub_chg_ovp == true) {
+			pr_info("recover from ovp, charge again!!\n");
+			info->sub_chg_ovp = false;
+			info->charging_status = POWER_SUPPLY_STATUS_CHARGING;
+			sec_bat_enable_charging(info, true);
+		}
+		full_cnt = 0;
+		ovp_cnt = 0;
+	}
+}
+
+static int sec_main_charger_disable(struct sec_bat_info *info)
+{
+	struct power_supply *psy_main =
+		get_power_supply_by_name(info->charger_name);
+	union power_supply_propval val_type;
+	int ret;
+
+	val_type.intval = POWER_SUPPLY_STATUS_DISCHARGING;
+	ret = psy_main->set_property(psy_main, POWER_SUPPLY_PROP_STATUS,
+								&val_type);
+	if (ret) {
+		dev_err(info->dev, "%s: fail to set charging"
+			" status-main(%d)\n", __func__, ret);
+	}
+
+	return ret;
+}
+
+static int sec_main_charger_default(struct sec_bat_info *info)
+{
+	struct power_supply *psy = get_power_supply_by_name(info->charger_name);
+	union power_supply_propval val_type, val_chg_current;
+	int ret;
+
+	if (!psy) {
+		dev_err(info->dev, "%s: fail to get charger ps\n", __func__);
+		return -ENODEV;
+	}
+
+	val_type.intval = POWER_SUPPLY_STATUS_CHARGING;
+	val_chg_current.intval = 450;	/* mA */
+
+	/* Set charging current */
+	ret = psy->set_property(psy, POWER_SUPPLY_PROP_CURRENT_NOW,
+				&val_chg_current);
+	if (ret) {
+		dev_err(info->dev, "%s: fail to set charging cur(%d)\n",
+			__func__, ret);
+		return ret;
+	}
+
+	ret = psy->set_property(psy, POWER_SUPPLY_PROP_STATUS, &val_type);
+	if (ret) {
+		dev_err(info->dev, "%s: fail to set charging status(%d)\n",
+			__func__, ret);
+		return ret;
+	}
+
+	return 0;
+}
+
+#if 0 /* for backup */
+static void sec_batt_check_call_exception_test(struct sec_bat_info *info)
+{
+	struct power_supply *psy_sub =
+	    get_power_supply_by_name(info->sub_charger_name);
+	union power_supply_propval val_type, val_chg_current;
+	int proximity_activation = 0;
+	int proximity_approach = 0;
+	int ret;
+
+	if (info->cable_type != CABLE_TYPE_AC) {
+		info->is_call_except = 0;
+		return;
+	}
+
+	if (!info->charging_enabled) {
+		if (info->is_call_except)
+			info->is_call_except = 0;
+		return;
+	}
+
+	if (!info->is_call_except)
+		info->is_call_except = 1;
+	else
+		info->is_call_except = 0;
+
+	val_type.intval = POWER_SUPPLY_STATUS_UNKNOWN;
+
+	if (info->charging_set_current == 650 &&
+		info->is_call_except == 1) {
+		val_type.intval = POWER_SUPPLY_STATUS_CHARGING;
+		val_chg_current.intval = 450;
+		info->charging_set_current = val_chg_current.intval;
+		pr_info("call exception enable!\n");
+	} else if (info->charging_set_current == 450 &&
+		info->is_call_except == 0) {
+		val_type.intval = POWER_SUPPLY_STATUS_CHARGING;
+		val_chg_current.intval = 650;
+		info->charging_set_current = val_chg_current.intval;
+		pr_info("call exception disable!\n");
+	}
+
+	if (val_type.intval == POWER_SUPPLY_STATUS_CHARGING) {
+		ret = psy_sub->set_property(psy_sub,
+					    POWER_SUPPLY_PROP_CURRENT_NOW,
+					    &val_chg_current);
+		if (ret) {
+			dev_err(info->dev, "%s: fail to set charging cur(%d)\n",
+				__func__, ret);
+		}
+
+		ret = psy_sub->set_property(psy_sub,
+						POWER_SUPPLY_PROP_STATUS,
+					    &val_type);
+		if (ret) {
+			dev_err(info->dev, "%s: fail to set charging status(%d)\n",
+				__func__, ret);
+		}
+
+		dev_info(info->dev, "%s: reset charging current\n",
+			 __func__);
+	}
+}
+#endif
+
+#if 0 /* for backup */
+static void sec_batt_check_call_exception(struct sec_bat_info *info)
+{
+	struct power_supply *psy_sub =
+	    get_power_supply_by_name(info->sub_charger_name);
+	union power_supply_propval val_type, val_chg_current;
+	int proximity_activation = 0;
+	int proximity_approach = 0;
+	int ret;
+
+	if (info->cable_type != CABLE_TYPE_AC) {
+		info->is_call_except = 0;
+		return;
+	}
+
+	if (!info->charging_enabled) {
+		if (info->is_call_except)
+			info->is_call_except = 0;
+		return;
+	}
+
+	proximity_activation = get_proximity_activation_state();
+	proximity_approach = get_proximity_approach_state();
+
+	if (info->voice_call_state &&
+		proximity_activation &&
+		proximity_approach) {
+		/* info->is_call_except = 1; */
+		info->batt_vcell = sec_bat_get_fuelgauge_data(info, FG_T_VCELL);
+		if (info->batt_vcell >= CALL_EXCEPTION_VOLTAGE_DN &&
+			info->batt_vcell < CALL_EXCEPTION_VOLTAGE_UP &&
+			info->is_call_except == 0) {
+			info->is_call_except = 0;
+		} else if (info->batt_vcell < CALL_EXCEPTION_VOLTAGE_DN) {
+			info->is_call_except = 0;
+		} else {
+			info->is_call_except = 1;
+		}
+	} else {
+		info->is_call_except = 0;
+	}
+
+	val_type.intval = POWER_SUPPLY_STATUS_UNKNOWN;
+
+	if (info->charging_set_current == 650 &&
+		info->is_call_except == 1) {
+		val_type.intval = POWER_SUPPLY_STATUS_CHARGING;
+		val_chg_current.intval = 450;
+		info->charging_set_current = val_chg_current.intval;
+		pr_info("call exception enable! (%d, %d, %d)\n",
+			info->voice_call_state, proximity_activation,
+			proximity_approach);
+	} else if (info->charging_set_current == 450 &&
+		info->is_call_except == 0) {
+		val_type.intval = POWER_SUPPLY_STATUS_CHARGING;
+		val_chg_current.intval = 650;
+		info->charging_set_current = val_chg_current.intval;
+		pr_info("call exception disable! (%d, %d, %d)\n",
+			info->voice_call_state, proximity_activation,
+			proximity_approach);
+	}
+
+	if (val_type.intval == POWER_SUPPLY_STATUS_CHARGING) {
+		ret = psy_sub->set_property(psy_sub,
+					    POWER_SUPPLY_PROP_CURRENT_NOW,
+					    &val_chg_current);
+		if (ret) {
+			dev_err(info->dev, "%s: fail to set charging cur(%d)\n",
+				__func__, ret);
+		}
+
+		ret = psy_sub->set_property(psy_sub,
+						POWER_SUPPLY_PROP_STATUS,
+					    &val_type);
+		if (ret) {
+			dev_err(info->dev, "%s: fail to set charging status(%d)\n",
+				__func__, ret);
+		}
+
+		dev_info(info->dev, "%s: reset charging current\n",
+			 __func__);
+	}
+}
+#endif
+
+static void sec_bat_monitor_work(struct work_struct *work)
+{
+	struct sec_bat_info *info = container_of(work, struct sec_bat_info,
+						 monitor_work);
+
+	wake_lock(&info->monitor_wake_lock);
+
+	sec_bat_charging_time_management(info);
+
+	sec_bat_update_info(info);
+	sec_bat_check_temper(info);
+	sec_bat_check_vf(info);
+
+	if (info->use_sub_charger) {
+		sec_bat_check_ing_level_trigger(info);
+		sec_check_chgcurrent(info);
+
+		/*if (info->sub_chg_status == POWER_SUPPLY_STATUS_CHARGING &&
+				info->test_info.test_value == 2) {
+			pr_info("batt test case : %d\n",
+					info->test_info.test_value);
+			sec_bat_handle_sub_charger_topoff(info);
+		}*/
+	}
+
+	if (info->test_info.test_value == 6)
+		info->batt_tmu_status = TMU_STATUS_WARNING;
+
+	switch (info->charging_status) {
+	case POWER_SUPPLY_STATUS_FULL:
+		if (sec_check_recharging(info) &&
+		    info->recharging_status == false) {
+			info->recharging_status = true;
+			sec_bat_enable_charging(info, true);
+
+			dev_info(info->dev,
+				 "%s: Start Recharging, Vcell = %d\n", __func__,
+				 info->batt_vcell);
+		}
+		break;
+	case POWER_SUPPLY_STATUS_CHARGING:
+		if (info->batt_health == POWER_SUPPLY_HEALTH_OVERHEAT
+		    || info->batt_health == POWER_SUPPLY_HEALTH_COLD) {
+			sec_bat_enable_charging(info, false);
+			info->charging_status =
+			    POWER_SUPPLY_STATUS_NOT_CHARGING;
+			info->test_info.is_rechg_state = false;
+
+			dev_info(info->dev, "%s: Not charging\n", __func__);
+		} else if (info->batt_health == POWER_SUPPLY_HEALTH_DEAD) {
+			sec_bat_enable_charging(info, false);
+			info->charging_status =
+					POWER_SUPPLY_STATUS_NOT_CHARGING;
+			info->test_info.is_rechg_state = false;
+			dev_info(info->dev, "%s: Not charging (VF err!)\n",
+								__func__);
+		}
+		break;
+	case POWER_SUPPLY_STATUS_DISCHARGING:
+		dev_dbg(info->dev, "%s: Discharging\n", __func__);
+		break;
+	case POWER_SUPPLY_STATUS_NOT_CHARGING:
+		if (info->batt_health == POWER_SUPPLY_HEALTH_GOOD) {
+			dev_info(info->dev, "%s: recover health state\n",
+				 __func__);
+			if (info->cable_type != CABLE_TYPE_NONE) {
+				sec_bat_enable_charging(info, true);
+				info->charging_status
+				    = POWER_SUPPLY_STATUS_CHARGING;
+			} else
+				info->charging_status
+				    = POWER_SUPPLY_STATUS_DISCHARGING;
+		}
+		break;
+	default:
+		dev_info(info->dev, "%s: Undefined Battery Status\n", __func__);
+		return;
+	}
+
+	if (info->batt_soc != info->batt_presoc)
+		pr_info("[fg] p:%d, s1:%d, s2:%d, v:%d, t:%d\n",
+			info->batt_raw_soc,
+			info->batt_soc, info->batt_presoc,
+			info->batt_vcell, info->batt_temp_radc);
+
+	power_supply_changed(&info->psy_bat);
+
+	wake_unlock(&info->monitor_wake_lock);
+
+	return;
+}
+
+static void sec_bat_polling_work(struct work_struct *work)
+{
+	struct sec_bat_info *info;
+	info = container_of(work, struct sec_bat_info, polling_work.work);
+
+	wake_lock(&info->monitor_wake_lock);
+	queue_work(info->monitor_wqueue, &info->monitor_work);
+
+	if (info->initial_check_count) {
+		schedule_delayed_work(&info->polling_work, HZ);
+		info->initial_check_count--;
+	} else
+		schedule_delayed_work(&info->polling_work,
+				      msecs_to_jiffies(info->polling_interval));
+}
+
+static void sec_bat_measure_work(struct work_struct *work)
+{
+	struct sec_bat_info *info;
+	info = container_of(work, struct sec_bat_info, measure_work.work);
+
+	wake_lock(&info->measure_wake_lock);
+	sec_bat_check_temper_adc(info);
+	if (sec_bat_check_detbat(info) == BAT_NOT_DETECTED
+			&& info->present == 1) {
+		msleep(100);
+		sec_bat_check_detbat(info); /* AGAIN_FEATURE */
+	}
+	/* TBD */
+	/*
+	sec_batt_check_call_exception(info);
+	sec_batt_check_call_exception_test(info); */ /* for test */
+
+	if (info->initial_check_count) {
+		queue_delayed_work(info->monitor_wqueue, &info->measure_work,
+		      HZ);
+	} else {
+		queue_delayed_work(info->monitor_wqueue, &info->measure_work,
+		      msecs_to_jiffies(info->measure_interval));
+	}
+	/*
+	schedule_delayed_work(&info->measure_work,
+		      msecs_to_jiffies(info->measure_interval));
+	*/
+	wake_unlock(&info->measure_wake_lock);
+}
+
+#define SEC_BATTERY_ATTR(_name)			\
+{						\
+	.attr = { .name = #_name,		\
+		  .mode = 0664 },		\
+	.show = sec_bat_show_property,		\
+	.store = sec_bat_store,			\
+}
+
+static struct device_attribute sec_battery_attrs[] = {
+	SEC_BATTERY_ATTR(batt_vol),
+	SEC_BATTERY_ATTR(batt_soc),
+	SEC_BATTERY_ATTR(batt_vfocv),
+	SEC_BATTERY_ATTR(batt_temp),
+	SEC_BATTERY_ATTR(batt_temp_adc),
+	SEC_BATTERY_ATTR(batt_temp_adc_avg),
+	SEC_BATTERY_ATTR(batt_temp_adc_sub),
+	SEC_BATTERY_ATTR(charging_source),
+	SEC_BATTERY_ATTR(batt_lp_charging),
+	SEC_BATTERY_ATTR(video),
+	SEC_BATTERY_ATTR(mp3),
+	SEC_BATTERY_ATTR(batt_type),
+	SEC_BATTERY_ATTR(batt_full_check),
+	SEC_BATTERY_ATTR(batt_temp_check),
+	SEC_BATTERY_ATTR(batt_temp_adc_spec),
+	SEC_BATTERY_ATTR(batt_test_value),
+	SEC_BATTERY_ATTR(batt_temp_radc),
+	SEC_BATTERY_ATTR(batt_current_adc),
+	SEC_BATTERY_ATTR(batt_esus_test),
+	SEC_BATTERY_ATTR(system_rev),
+	SEC_BATTERY_ATTR(fg_psoc),
+	SEC_BATTERY_ATTR(batt_lpm_state),
+	SEC_BATTERY_ATTR(sub_chg_state),
+	SEC_BATTERY_ATTR(lpm_reboot_event),
+	SEC_BATTERY_ATTR(talk_wcdma),
+	SEC_BATTERY_ATTR(talk_gsm),
+	SEC_BATTERY_ATTR(batt_tmu_status),
+};
+
+enum {
+	BATT_VOL = 0,
+	BATT_SOC,
+	BATT_VFOCV,
+	BATT_TEMP,
+	BATT_TEMP_ADC,
+	BATT_TEMP_ADC_AVG,
+	BATT_TEMP_ADC_SUB,
+	CHARGING_SOURCE,
+	BATT_LP_CHARGING,
+	BATT_VIDEO,
+	BATT_MP3,
+	BATT_TYPE,
+	BATT_FULL_CHECK,
+	BATT_TEMP_CHECK,
+	BATT_TEMP_ADC_SPEC,
+	BATT_TEST_VALUE,
+	BATT_TEMP_RADC,
+	BATT_CURRENT_ADC,
+	BATT_ESUS_TEST,
+	BATT_SYSTEM_REV,
+	BATT_FG_PSOC,
+	BATT_LPM_STATE,
+	BATT_SUB_CHG_STATE,
+	LPM_REBOOT_EVENT,
+	BATT_WCDMA_CALL,
+	BATT_GSM_CALL,
+	BATT_TMU_STATUS,
+};
+
+static ssize_t sec_bat_show_property(struct device *dev,
+				     struct device_attribute *attr, char *buf)
+{
+	struct sec_bat_info *info = dev_get_drvdata(dev->parent);
+	int i = 0, val;
+	const ptrdiff_t off = attr - sec_battery_attrs;
+
+	switch (off) {
+	case BATT_VOL:
+		val = sec_bat_get_fuelgauge_data(info, FG_T_AVGVCELL);
+		i += scnprintf(buf + i, PAGE_SIZE - i, "%d\n", val);
+		break;
+	case BATT_SOC:
+		val = sec_bat_get_fuelgauge_data(info, FG_T_SOC);
+		i += scnprintf(buf + i, PAGE_SIZE - i, "%d\n", val);
+		break;
+	case BATT_VFOCV:
+		val = sec_bat_get_fuelgauge_data(info, FG_T_VFOCV);
+		i += scnprintf(buf + i, PAGE_SIZE - i, "%d\n", val);
+		break;
+	case BATT_TEMP:
+		i += scnprintf(buf + i, PAGE_SIZE - i, "%d\n",
+							info->batt_temp);
+		break;
+	case BATT_TEMP_ADC:
+		i += scnprintf(buf + i, PAGE_SIZE - i, "%d\n",
+							info->batt_temp_adc);
+		break;
+	case BATT_TEMP_ADC_AVG:
+		/*
+		val = info->temper_adc_sample.average_adc;
+		i += scnprintf(buf + i, PAGE_SIZE - i, "%d\n", val);
+		*/
+		break;
+	case BATT_TEMP_ADC_SUB:
+		i += scnprintf(buf + i, PAGE_SIZE - i, "%d\n",
+				info->batt_temp_radc_sub);
+		break;
+	case CHARGING_SOURCE:
+		i += scnprintf(buf + i, PAGE_SIZE - i, "%d\n",
+			       info->cable_type);
+		break;
+	case BATT_LP_CHARGING:
+		i += scnprintf(buf + i, PAGE_SIZE - i, "%d\n",
+			       info->get_lpcharging_state());
+		break;
+	case BATT_VIDEO:
+		/* TODO */
+		i += scnprintf(buf + i, PAGE_SIZE - i, "%d\n", 0);
+		break;
+	case BATT_MP3:
+		/* TODO */
+		i += scnprintf(buf + i, PAGE_SIZE - i, "%d\n", 0);
+		break;
+	case BATT_TYPE:
+		i += scnprintf(buf + i, PAGE_SIZE - i, "%s\n", "SDI_SDI");
+		break;
+	case BATT_FULL_CHECK:
+		i += scnprintf(buf + i, PAGE_SIZE - i, "%d\n",
+			(info->charging_status ==
+					POWER_SUPPLY_STATUS_FULL) ? 1 : 0);
+		break;
+	case BATT_TEMP_CHECK:
+		i += scnprintf(buf + i, PAGE_SIZE - i,
+			"%d\n", info->batt_health);
+		break;
+	case BATT_TEMP_ADC_SPEC:
+		i += scnprintf(buf + i, PAGE_SIZE - i,
+			"(HIGH: %d - %d,   LOW: %d - %d)\n",
+				HIGH_BLOCK_TEMP_ADC, HIGH_RECOVER_TEMP_ADC,
+				LOW_BLOCK_TEMP_ADC, LOW_RECOVER_TEMP_ADC);
+		break;
+	case BATT_TEST_VALUE:
+		i += scnprintf(buf + i, PAGE_SIZE - i, "%d\n",
+			info->test_info.test_value);
+		break;
+	case BATT_TEMP_RADC:
+		val = s3c_read_temper_adc(info);
+		val = sec_rescale_temp_adc(info);
+		i += scnprintf(buf + i, PAGE_SIZE - i,
+						"%d\n", info->batt_temp_radc);
+		break;
+	case BATT_CURRENT_ADC:
+		i += scnprintf(buf + i, PAGE_SIZE - i, "%d\n",
+			info->batt_current_adc);
+		break;
+	case BATT_ESUS_TEST:
+		i += scnprintf(buf + i, PAGE_SIZE - i, "%d\n",
+			info->test_info.test_esuspend);
+		break;
+	case BATT_SYSTEM_REV:
+		i += scnprintf(buf + i, PAGE_SIZE - i, "%d\n", system_rev);
+		break;
+	case BATT_FG_PSOC:
+		val = sec_bat_get_fuelgauge_data(info, FG_T_PSOC);
+		i += scnprintf(buf + i, PAGE_SIZE - i, "%d\n", val);
+		break;
+	case BATT_LPM_STATE:
+		i += scnprintf(buf + i, PAGE_SIZE - i, "%d\n",
+			info->batt_lpm_state);
+		break;
+	case BATT_SUB_CHG_STATE:
+		i += scnprintf(buf + i, PAGE_SIZE - i, "%d\n",
+			info->sub_chg_status);
+		break;
+	case BATT_TMU_STATUS:
+		i += scnprintf(buf + i, PAGE_SIZE - i, "%d\n",
+			info->batt_tmu_status);
+		break;
+	default:
+		i = -EINVAL;
+	}
+
+	return i;
+}
+
+static ssize_t sec_bat_store(struct device *dev,
+			     struct device_attribute *attr,
+			     const char *buf, size_t count)
+{
+	int ret = 0, x = 0;
+	const ptrdiff_t off = attr - sec_battery_attrs;
+	struct sec_bat_info *info = dev_get_drvdata(dev->parent);
+
+	switch (off) {
+	case BATT_VIDEO:
+		/* TODO */
+		if (sscanf(buf, "%d\n", &x) == 1) {
+			dev_info(info->dev, "%s: video(%d)\n", __func__, x);
+			ret = count;
+		}
+		break;
+	case BATT_MP3:
+		/* TODO */
+		if (sscanf(buf, "%d\n", &x) == 1) {
+			dev_info(info->dev, "%s: mp3(%d)\n", __func__, x);
+			ret = count;
+		}
+		break;
+	case BATT_ESUS_TEST: /* early_suspend test */
+		if (sscanf(buf, "%d\n", &x) == 1) {
+			if (x == 0) {
+				info->test_info.test_esuspend = 0;
+				wake_lock_timeout(&info->test_wake_lock,
+							5 * HZ);
+				cancel_delayed_work(&info->measure_work);
+				info->measure_interval = MEASURE_DSG_INTERVAL;
+				wake_lock(&info->measure_wake_lock);
+				queue_delayed_work(info->monitor_wqueue,
+							&info->measure_work, 0);
+				/* schedule_delayed_work(&info->measure_work,
+							0); */
+			} else {
+				info->test_info.test_esuspend = 1;
+				wake_lock(&info->test_wake_lock);
+				cancel_delayed_work(&info->measure_work);
+				info->measure_interval = MEASURE_CHG_INTERVAL;
+				wake_lock(&info->measure_wake_lock);
+				queue_delayed_work(info->monitor_wqueue,
+							&info->measure_work, 0);
+				/* schedule_delayed_work(&info->measure_work,
+							0); */
+			}
+			ret = count;
+		}
+		break;
+	case BATT_TEST_VALUE:
+		if (sscanf(buf, "%d\n", &x) == 1) {
+			if (x == 0)
+				info->test_info.test_value = 0;
+			else if (x == 1)
+				/* for temp warning event */
+				info->test_info.test_value = 1;
+			else if (x == 2)
+				/* for full event */
+				/* info->test_info.test_value = 2; */
+				/* disable full test interface. */
+				info->test_info.test_value = 0;
+			else if (x == 3)
+				/* for abs time event */
+				info->test_info.test_value = 3;
+			else if (x == 999) {
+				/* for pop-up disable */
+				info->test_info.test_value = 999;
+				if ((info->batt_health ==
+						POWER_SUPPLY_HEALTH_OVERHEAT) ||
+					(info->batt_health ==
+						POWER_SUPPLY_HEALTH_COLD)) {
+					info->batt_health =
+						POWER_SUPPLY_HEALTH_GOOD;
+					wake_lock(&info->monitor_wake_lock);
+					queue_work(info->monitor_wqueue,
+							&info->monitor_work);
+				}
+			} else if (x == 6)
+				/* for tmu test */
+				info->test_info.test_value = 6;
+			else
+				info->test_info.test_value = 0;
+			pr_info("batt test case : %d\n",
+						info->test_info.test_value);
+			ret = count;
+		}
+		break;
+	case BATT_LPM_STATE:
+		if (sscanf(buf, "%d\n", &x) == 1) {
+			info->batt_lpm_state = x;
+			ret = count;
+		}
+		break;
+	case LPM_REBOOT_EVENT:
+		if (sscanf(buf, "%d\n", &x) == 1) {
+			/* disable sub-charger and enable main-charger */
+			pr_info("lpm reboot event is trigered\n");
+			if (info->use_sub_charger) {
+				sec_bat_enable_charging(info, false);
+				sec_main_charger_default(info);
+			}
+			ret = count;
+		}
+		break;
+	case BATT_WCDMA_CALL:
+	case BATT_GSM_CALL:
+		if (sscanf(buf, "%d\n", &x) == 1) {
+			info->voice_call_state = x;
+			pr_info("voice call = %d, %d\n",
+					x, info->voice_call_state);
+		}
+		break;
+	default:
+		ret = -EINVAL;
+	}
+
+	return ret;
+}
+
+static int sec_bat_create_attrs(struct device *dev)
+{
+	int i, rc;
+
+	for (i = 0; i < ARRAY_SIZE(sec_battery_attrs); i++) {
+		rc = device_create_file(dev, &sec_battery_attrs[i]);
+		if (rc)
+			goto sec_attrs_failed;
+	}
+	goto succeed;
+
+sec_attrs_failed:
+	while (i--)
+		device_remove_file(dev, &sec_battery_attrs[i]);
+succeed:
+	return rc;
+}
+
+static int sec_bat_is_charging(struct sec_bat_info *info)
+{
+	struct power_supply *psy = get_power_supply_by_name(info->charger_name);
+	union power_supply_propval value;
+	int ret;
+
+	if (!psy) {
+		dev_err(info->dev, "%s: fail to get charger ps\n", __func__);
+		return -ENODEV;
+	}
+
+	ret = psy->get_property(psy, POWER_SUPPLY_PROP_STATUS, &value);
+	if (ret < 0) {
+		dev_err(info->dev, "%s: fail to get status(%d)\n", __func__,
+			ret);
+		return ret;
+	}
+
+	return value.intval;
+}
+
+static int sec_bat_read_proc(char *buf, char **start,
+			off_t offset, int count, int *eof, void *data)
+{
+	struct sec_bat_info *info = data;
+	struct timespec cur_time;
+	ktime_t ktime;
+	int len = 0;
+
+	ktime = alarm_get_elapsed_realtime();
+	cur_time = ktime_to_timespec(ktime);
+
+	len = sprintf(buf, "%lu	%u	%u	%u	%u	"
+			"%u	%d	%d	%d	%d	"
+			"%d	%u	%u	%u	%u	"
+			"%u	%u	%d	%d	%lu\n",
+			cur_time.tv_sec,
+			info->batt_raw_soc,
+			info->batt_soc,
+			info->batt_vcell,
+			info->batt_current_adc,
+			info->charging_enabled,
+			info->batt_full_status,
+			info->test_info.full_count,
+			info->test_info.full_count_sub,
+			info->test_info.rechg_count,
+			info->test_info.is_rechg_state,
+			info->recharging_status,
+			info->batt_temp_radc,
+			info->batt_temp_radc_sub,
+			info->batt_health,
+			info->charging_status,
+			info->present,
+			info->cable_type,
+			info->batt_tmu_status,
+			info->charging_passed_time);
+	return len;
+}
+
+static __devinit int sec_bat_probe(struct platform_device *pdev)
+{
+	struct sec_bat_platform_data *pdata = dev_get_platdata(&pdev->dev);
+	struct sec_bat_info *info;
+	int ret = 0;
+
+	dev_info(&pdev->dev, "%s: SEC Battery Driver Loading\n", __func__);
+
+	info = kzalloc(sizeof(*info), GFP_KERNEL);
+	if (!info)
+		return -ENOMEM;
+
+	platform_set_drvdata(pdev, info);
+
+	info->dev = &pdev->dev;
+	if (!pdata->fuel_gauge_name || !pdata->charger_name) {
+		dev_err(info->dev, "%s: no fuel gauge or charger name\n",
+			__func__);
+		goto err_kfree;
+	}
+	info->fuel_gauge_name = pdata->fuel_gauge_name;
+	info->charger_name = pdata->charger_name;
+	info->adc_arr_size = pdata->adc_arr_size;
+	info->adc_table = pdata->adc_table;
+
+	info->get_lpcharging_state = pdata->get_lpcharging_state;
+
+	if (pdata->sub_charger_name) {
+		info->sub_charger_name = pdata->sub_charger_name;
+		if (system_rev >= HWREV_FOR_BATTERY)
+			info->use_sub_charger = true;
+	}
+
+	info->psy_bat.name = "battery",
+	info->psy_bat.type = POWER_SUPPLY_TYPE_BATTERY,
+	info->psy_bat.properties = sec_battery_props,
+	info->psy_bat.num_properties = ARRAY_SIZE(sec_battery_props),
+	info->psy_bat.get_property = sec_bat_get_property,
+	info->psy_bat.set_property = sec_bat_set_property,
+	info->psy_usb.name = "usb",
+	info->psy_usb.type = POWER_SUPPLY_TYPE_USB,
+	info->psy_usb.supplied_to = supply_list,
+	info->psy_usb.num_supplicants = ARRAY_SIZE(supply_list),
+	info->psy_usb.properties = sec_power_props,
+	info->psy_usb.num_properties = ARRAY_SIZE(sec_power_props),
+	info->psy_usb.get_property = sec_usb_get_property,
+	info->psy_ac.name = "ac",
+	info->psy_ac.type = POWER_SUPPLY_TYPE_MAINS,
+	info->psy_ac.supplied_to = supply_list,
+	info->psy_ac.num_supplicants = ARRAY_SIZE(supply_list),
+	info->psy_ac.properties = sec_power_props,
+	info->psy_ac.num_properties = ARRAY_SIZE(sec_power_props),
+	info->psy_ac.get_property = sec_ac_get_property;
+
+	wake_lock_init(&info->vbus_wake_lock, WAKE_LOCK_SUSPEND,
+		       "vbus_present");
+	wake_lock_init(&info->monitor_wake_lock, WAKE_LOCK_SUSPEND,
+		       "sec-battery-monitor");
+	wake_lock_init(&info->cable_wake_lock, WAKE_LOCK_SUSPEND,
+		       "sec-battery-cable");
+	wake_lock_init(&info->test_wake_lock, WAKE_LOCK_SUSPEND,
+				"bat_esus_test");
+	wake_lock_init(&info->measure_wake_lock, WAKE_LOCK_SUSPEND,
+				"sec-battery-measure");
+
+	info->batt_health = POWER_SUPPLY_HEALTH_GOOD;
+	info->charging_status = sec_bat_is_charging(info);
+	if (info->charging_status < 0)
+		info->charging_status = POWER_SUPPLY_STATUS_DISCHARGING;
+	else if (info->charging_status == POWER_SUPPLY_STATUS_CHARGING)
+		info->cable_type = CABLE_TYPE_USB; /* default */
+	info->batt_soc = 100;
+	info->recharging_status = false;
+	info->present = 1;
+	info->initial_check_count = INIT_CHECK_COUNT;
+
+	mutex_init(&info->adclock);
+
+	info->padc = s3c_adc_register(pdev, NULL, NULL, 0);
+	info->charging_start_time = 0;
+	info->is_call_except = 0;
+
+	if (info->get_lpcharging_state) {
+		if (info->get_lpcharging_state())
+			info->polling_interval = POLLING_INTERVAL / 4;
+		else
+			info->polling_interval = POLLING_INTERVAL;
+	}
+
+	info->batt_tmu_status = TMU_STATUS_NORMAL;
+
+	if (info->charging_status == POWER_SUPPLY_STATUS_CHARGING)
+		info->measure_interval = MEASURE_CHG_INTERVAL;
+	else
+		info->measure_interval = MEASURE_DSG_INTERVAL;
+
+	/* init power supplier framework */
+	ret = power_supply_register(&pdev->dev, &info->psy_bat);
+	if (ret) {
+		dev_err(info->dev, "%s: failed to register psy_bat\n",
+			__func__);
+		goto err_wake_lock;
+	}
+
+	ret = power_supply_register(&pdev->dev, &info->psy_usb);
+	if (ret) {
+		dev_err(info->dev, "%s: failed to register psy_usb\n",
+			__func__);
+		goto err_supply_unreg_bat;
+	}
+
+	ret = power_supply_register(&pdev->dev, &info->psy_ac);
+	if (ret) {
+		dev_err(info->dev, "%s: failed to register psy_ac\n", __func__);
+		goto err_supply_unreg_usb;
+	}
+
+	/* create sec detail attributes */
+	sec_bat_create_attrs(info->psy_bat.dev);
+
+	info->entry = create_proc_entry("batt_info_proc", S_IRUGO, NULL);
+	if (!info->entry)
+		dev_err(info->dev, "%s: failed to create proc_entry\n",
+			__func__);
+	else {
+		info->entry->read_proc = sec_bat_read_proc;
+		info->entry->data = (struct sec_bat_info *)info;
+	}
+
+	info->monitor_wqueue =
+	    create_freezable_workqueue(dev_name(&pdev->dev));
+	if (!info->monitor_wqueue) {
+		dev_err(info->dev, "%s: fail to create workqueue\n", __func__);
+		goto err_supply_unreg_ac;
+	}
+
+	if (info->charging_status == POWER_SUPPLY_STATUS_DISCHARGING)
+		sec_main_charger_disable(info);
+
+	INIT_WORK(&info->monitor_work, sec_bat_monitor_work);
+	INIT_DELAYED_WORK_DEFERRABLE(&info->cable_work, sec_bat_cable_work);
+
+	INIT_DELAYED_WORK_DEFERRABLE(&info->polling_work, sec_bat_polling_work);
+	schedule_delayed_work(&info->polling_work, 0);
+
+	INIT_DELAYED_WORK_DEFERRABLE(&info->measure_work, sec_bat_measure_work);
+	schedule_delayed_work(&info->measure_work, 0);
+
+	return 0;
+
+err_supply_unreg_ac:
+	power_supply_unregister(&info->psy_ac);
+err_supply_unreg_usb:
+	power_supply_unregister(&info->psy_usb);
+err_supply_unreg_bat:
+	power_supply_unregister(&info->psy_bat);
+err_wake_lock:
+	wake_lock_destroy(&info->vbus_wake_lock);
+	wake_lock_destroy(&info->monitor_wake_lock);
+	wake_lock_destroy(&info->cable_wake_lock);
+	wake_lock_destroy(&info->test_wake_lock);
+	wake_lock_destroy(&info->measure_wake_lock);
+	mutex_destroy(&info->adclock);
+err_kfree:
+	kfree(info);
+
+	return ret;
+}
+
+static int __devexit sec_bat_remove(struct platform_device *pdev)
+{
+	struct sec_bat_info *info = platform_get_drvdata(pdev);
+
+	remove_proc_entry("batt_info_proc", NULL);
+
+	flush_workqueue(info->monitor_wqueue);
+	destroy_workqueue(info->monitor_wqueue);
+
+	cancel_delayed_work(&info->cable_work);
+	cancel_delayed_work(&info->polling_work);
+	cancel_delayed_work(&info->measure_work);
+
+	power_supply_unregister(&info->psy_bat);
+	power_supply_unregister(&info->psy_usb);
+	power_supply_unregister(&info->psy_ac);
+
+	wake_lock_destroy(&info->vbus_wake_lock);
+	wake_lock_destroy(&info->monitor_wake_lock);
+	wake_lock_destroy(&info->cable_wake_lock);
+	wake_lock_destroy(&info->test_wake_lock);
+	wake_lock_destroy(&info->measure_wake_lock);
+	mutex_destroy(&info->adclock);
+
+	s3c_adc_release(info->padc);
+
+	kfree(info);
+
+	return 0;
+}
+
+static int sec_bat_suspend(struct device *dev)
+{
+	struct sec_bat_info *info = dev_get_drvdata(dev);
+
+	cancel_work_sync(&info->monitor_work);
+	cancel_delayed_work(&info->cable_work);
+	cancel_delayed_work(&info->polling_work);
+	cancel_delayed_work(&info->measure_work);
+
+	return 0;
+}
+
+static int sec_bat_resume(struct device *dev)
+{
+	struct sec_bat_info *info = dev_get_drvdata(dev);
+
+	wake_lock(&info->monitor_wake_lock);
+	queue_work(info->monitor_wqueue, &info->monitor_work);
+
+	schedule_delayed_work(&info->polling_work,
+			      msecs_to_jiffies(info->polling_interval));
+	schedule_delayed_work(&info->measure_work,
+			      msecs_to_jiffies(info->measure_interval));
+
+	return 0;
+}
+
+#define sec_bat_shutdown	NULL
+
+static const struct dev_pm_ops sec_bat_pm_ops = {
+	.suspend = sec_bat_suspend,
+	.resume = sec_bat_resume,
+};
+
+static struct platform_driver sec_bat_driver = {
+	.driver = {
+		   .name = "sec-battery",
+		   .owner = THIS_MODULE,
+		   .pm = &sec_bat_pm_ops,
+		   .shutdown = sec_bat_shutdown,
+		   },
+	.probe = sec_bat_probe,
+	.remove = __devexit_p(sec_bat_remove),
+};
+
+static int __init sec_bat_init(void)
+{
+	return platform_driver_register(&sec_bat_driver);
+}
+
+static void __exit sec_bat_exit(void)
+{
+	platform_driver_unregister(&sec_bat_driver);
+}
+
+late_initcall(sec_bat_init);
+module_exit(sec_bat_exit);
+
+MODULE_DESCRIPTION("SEC battery driver");
+MODULE_AUTHOR("<ms925.kim@samsung.com>");
+MODULE_AUTHOR("<joshua.chang@samsung.com>");
+MODULE_LICENSE("GPL");
diff --git a/drivers/power/smb136_charger.c b/drivers/power/smb136_charger.c
new file mode 100644
index 0000000..10afcc7
--- /dev/null
+++ b/drivers/power/smb136_charger.c
@@ -0,0 +1,465 @@
+/*
+ *  smb136_charger.c
+ *
+ *  Copyright (C) 2011 Samsung Electronics
+ *  Ikkeun Kim <iks.kim@samsung.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/platform_device.h>
+#include <linux/err.h>
+#include <linux/i2c.h>
+#include <linux/delay.h>
+#include <linux/power_supply.h>
+#include <linux/power/sec_battery_px.h>
+#include <linux/power/smb136_charger.h>
+#include <linux/mfd/max8997.h>
+#include <linux/gpio.h>
+#include <linux/irq.h>
+#include <linux/interrupt.h>
+#include <linux/slab.h>
+#include <plat/gpio-cfg.h>
+#include <mach/gpio-p2.h>
+
+
+/* Slave address */
+#define SMB136_SLAVE_ADDR		0x9A
+
+/* SMB136 Registers. */
+#define SMB_ChargeCurrent		0x00
+#define SMB_InputCurrentLimit	0x01
+#define SMB_FloatVoltage		0x02
+#define SMB_ControlA			0x03
+#define SMB_ControlB			0x04
+#define SMB_PinControl			0x05
+#define SMB_OTGControl			0x06
+#define SMB_Fault				0x07
+#define SMB_Temperature		0x08
+#define SMB_SafetyTimer			0x09
+#define SMB_VSYS				0x0A
+#define SMB_I2CAddr			0x0B
+
+#define SMB_IRQreset			0x30
+#define SMB_CommandA			0x31
+#define SMB_StatusA			0x32
+#define SMB_StatusB			0x33
+#define SMB_StatusC			0x34
+#define SMB_StatusD			0x35
+#define SMB_StatusE			0x36
+#define SMB_StatusF			0x37
+#define SMB_StatusG			0x38
+#define SMB_StatusH			0x39
+#define SMB_DeviceID			0x3B
+#define SMB_CommandB			0x3C
+
+/* SMB_StatusC register bit. */
+#define SMB_USB				1
+#define SMB_CHARGER			0
+#define Compelete				1
+#define Busy					0
+#define InputCurrent275			0xE
+#define InputCurrent500			0xF
+#define InputCurrent700			0x0
+#define InputCurrent800			0x1
+#define InputCurrent900			0x2
+#define InputCurrent1000		0x3
+#define InputCurrent1100		0x4
+#define InputCurrent1200		0x5
+#define InputCurrent1300		0x6
+#define InputCurrent1400		0x7
+
+/* SIOP */
+#define CHARGING_CURRENT_HIGH_LOW_STANDARD	450
+
+struct smb136_chg_data {
+	struct i2c_client *client;
+	struct smb_charger_data *pdata;
+	struct smb_charger_callbacks *callbacks;
+};
+
+static struct smb136_chg_data *smb136_chg;
+static int charger_i2c_init;
+
+
+static int smb136_i2c_read(struct i2c_client *client, u8 reg, u8 *data)
+{
+	int ret = 0;
+
+	if (!client)
+		return -ENODEV;
+
+	ret = i2c_smbus_read_byte_data(client, reg);
+	if (ret < 0)
+		return -EIO;
+
+	*data = ret & 0xff;
+	return 0;
+}
+
+static int smb136_i2c_write(struct i2c_client *client, u8 reg, u8 data)
+{
+	if (!client)
+		return -ENODEV;
+
+	return i2c_smbus_write_byte_data(client, reg, data);
+}
+
+static void smb136_test_read(void)
+{
+	struct smb136_chg_data *chg = smb136_chg;
+	u8 data = 0;
+	u32 addr = 0;
+
+	if (!charger_i2c_init) {
+		pr_info("%s : smb136 charger IC i2c is not initialized!!\n"
+			, __func__);
+		return ;
+	}
+
+	for (addr = 0; addr < 0x0c; addr++) {
+		smb136_i2c_read(chg->client, addr, &data);
+		pr_info("SMB136 addr : 0x%02x data : 0x%02x\n", addr, data);
+	}
+
+	for (addr = 0x31; addr < 0x3D; addr++) {
+		smb136_i2c_read(chg->client, addr, &data);
+		pr_info("SMB136 addr : 0x%02x data : 0x%02x\n", addr, data);
+	}
+}
+
+static int smb136_get_charging_state(void)
+{
+	struct smb136_chg_data *chg = smb136_chg;
+	int status = POWER_SUPPLY_STATUS_UNKNOWN;
+	u8 command_a_data, statue_e_data, statue_h_data;
+
+	smb136_i2c_read(chg->client, SMB_CommandA, &command_a_data);
+	smb136_i2c_read(chg->client, SMB_StatusE, &statue_e_data);
+	smb136_i2c_read(chg->client, SMB_StatusH, &statue_h_data);
+
+	if (statue_h_data & 0x01) {
+		pr_debug("%s: POWER_SUPPLY_STATUS_CHARGING\n", __func__);
+		return POWER_SUPPLY_STATUS_CHARGING;
+	} else {
+		if (!(statue_e_data & 0x06)) {
+			pr_debug("%s: POWER_SUPPLY_STATUS_DISCHARGING\n"
+				, __func__);
+			return POWER_SUPPLY_STATUS_DISCHARGING;
+		} else if ((statue_e_data & 0xc0)) {
+			pr_debug("%s: POWER_SUPPLY_STATUS_FULL\n", __func__);
+			return POWER_SUPPLY_STATUS_FULL;
+		}
+	}
+
+	pr_info("%s: POWER_SUPPLY_STATUS_UNKNOWN\n", __func__);
+	pr_info("%s: 0x31h(0x%02x), 0x36h(0x%02x), 0x39h(0x%02x)\n",
+		__func__, command_a_data, statue_e_data, statue_h_data);
+	return (int)status;
+}
+
+static void smb136_set_charging_state(int en, int cable_status)
+{
+	struct smb136_chg_data *chg = smb136_chg;
+	u8 data = 0;
+
+	if (!charger_i2c_init) {
+		pr_info("%s : smb136 charger IC i2c is not initialized!!\n"
+			, __func__);
+		return;
+	}
+
+	pr_info("%s : enable(%d), cable_status(%d)\n"
+		, __func__, en, cable_status);
+
+	if (en) {	/* enable */
+		/* 2. Change USB5/1/HC Control from Pin to I2C */
+		smb136_i2c_write(chg->client, SMB_PinControl, 0x8);
+		udelay(10);
+
+		/* 1. USB 100mA Mode, USB5/1 Current Levels */
+		/* Prevent in-rush current */
+		data = 0x80;
+		smb136_i2c_write(chg->client, SMB_CommandA, data);
+		udelay(10);
+
+		/* 3. Set charge current to 100mA */
+		/* Prevent in-rush current */
+		data = 0x14;
+		smb136_i2c_write(chg->client, SMB_ChargeCurrent, data);
+		udelay(10);
+
+		/* 4. Disable Automatic Input Current Limit */
+		data = 0xe6;
+		smb136_i2c_write(chg->client, SMB_InputCurrentLimit, data);
+		udelay(10);
+
+		/* 4. Automatic Recharge Disabed */
+		data = 0x8c;
+		smb136_i2c_write(chg->client, SMB_ControlA, data);
+		udelay(10);
+
+		/* 5. Safty timer Disabled */
+		data = 0x28;
+		smb136_i2c_write(chg->client, SMB_ControlB, data);
+		udelay(10);
+
+		/* 6. Disable USB D+/D- Detection */
+		data = 0x28;
+		smb136_i2c_write(chg->client, SMB_OTGControl, data);
+		udelay(10);
+
+		/* 7. Set Output Polarity for STAT */
+		data = 0xCA;
+		smb136_i2c_write(chg->client, SMB_FloatVoltage, data);
+		udelay(10);
+
+		/* 9. Re-load Enable */
+		data = 0x4b;
+		smb136_i2c_write(chg->client, SMB_SafetyTimer, data);
+		udelay(10);
+
+		/* Enable charge */
+		gpio_set_value(chg->pdata->enable, 0);
+
+		switch (cable_status) {
+		case CABLE_TYPE_TA:
+			/* HC mode */
+			data = 0x8c;
+			smb136_i2c_write(chg->client, SMB_CommandA, data);
+			udelay(10);
+
+			/* Set charge current to 1500mA */
+			data = 0xf4;
+			smb136_i2c_write(chg->client, SMB_ChargeCurrent, data);
+			udelay(10);
+			break;
+		case CABLE_TYPE_STATION:
+			/* HC mode */
+			data = 0x8c;
+			smb136_i2c_write(chg->client, SMB_CommandA, data);
+			udelay(10);
+
+			/* Set charge current to 750mA */
+			data = 0x54;
+			smb136_i2c_write(chg->client, SMB_ChargeCurrent, data);
+			udelay(10);
+
+			/* Disable Automatic Input Current Limit,
+			  * USBIN Current Limit to 700mA */
+			data = 0x06;
+			smb136_i2c_write(chg->client,
+				SMB_InputCurrentLimit, data);
+			udelay(10);
+			break;
+		case CABLE_TYPE_USB:
+		default:
+			/* Prevent in-rush current */
+			msleep(100);
+
+			/* USBIN 500mA mode */
+			data = 0x88;
+			smb136_i2c_write(chg->client, SMB_CommandA, data);
+			udelay(10);
+
+			/* Set charge current to 500mA */
+			data = 0x14;
+			smb136_i2c_write(chg->client, SMB_ChargeCurrent, data);
+			udelay(10);
+			break;
+		}
+	} else {
+		gpio_set_value(chg->pdata->enable, 1);
+
+		/* USB 100mA Mode, USB5/1 Current Levels */
+		/* Prevent in-rush current */
+		data = 0x80;
+		smb136_i2c_write(chg->client, SMB_CommandA, data);
+		udelay(10);
+
+		/* Set charge current to 100mA */
+		/* Prevent in-rush current */
+		data = 0x14;
+		smb136_i2c_write(chg->client, SMB_ChargeCurrent, data);
+		udelay(10);
+	}
+
+	return;
+}
+
+static int smb136_get_charging_current(void)
+{
+	struct smb136_chg_data *chg = smb136_chg;
+	u8 data = 0;
+	int get_current = 0;
+
+	smb136_i2c_read(chg->client, SMB_ChargeCurrent, &data);
+	switch (data >> 5) {
+	case 0:
+		get_current = 500;	break;
+	case 1:
+		get_current = 650;	break;
+	case 2:
+		get_current = 750;	break;
+	case 3:
+		get_current = 850;	break;
+	case 4:
+		get_current = 950;	break;
+	case 5:
+		get_current = 1100;	break;
+	case 6:
+		get_current = 1300;	break;
+	case 7:
+		get_current = 1500;	break;
+	default:
+		get_current = 500;
+		break;
+	}
+	pr_debug("%s: Get charging current as %dmA.\n", __func__, get_current);
+	return get_current;
+}
+
+static void smb136_set_charging_current(int set_current)
+{
+	struct smb136_chg_data *chg = smb136_chg;
+	u8 data = 0;
+
+	if (set_current > 450) {
+		/* HC mode */
+		data = 0x8c;
+		smb136_i2c_write(chg->client, SMB_CommandA, data);
+		udelay(10);
+
+		/* Set charge current to 1500mA */
+		data = 0xf4;
+		smb136_i2c_write(chg->client, SMB_ChargeCurrent, data);
+		udelay(10);
+	} else {
+		/* USBIN 500mA mode */
+		data = 0x88;
+		smb136_i2c_write(chg->client, SMB_CommandA, data);
+		udelay(10);
+
+		/* Set charge current to 500mA */
+		data = 0x14;
+		smb136_i2c_write(chg->client, SMB_ChargeCurrent, data);
+		udelay(10);
+	}
+	pr_debug("%s: Set charging current as %dmA.\n", __func__, set_current);
+}
+
+static int smb136_i2c_probe
+(struct i2c_client *client, const struct i2c_device_id *id)
+{
+	struct i2c_adapter *adapter = to_i2c_adapter(client->dev.parent);
+	struct smb136_chg_data *chg;
+	int ret = 0;
+
+	if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BYTE))
+		return -EIO;
+
+	pr_info("%s : SMB136 Charger Driver Loading\n", __func__);
+
+	chg = kzalloc(sizeof(struct smb136_chg_data), GFP_KERNEL);
+	if (!chg)
+		return -ENOMEM;
+
+	chg->callbacks = kzalloc(sizeof(struct smb_charger_callbacks)
+		, GFP_KERNEL);
+	if (!chg->callbacks) {
+		pr_err("%s : No callbacks\n", __func__);
+		ret = -ENOMEM;
+		goto err_callbacks;
+	}
+
+	chg->client = client;
+	if (!chg->client) {
+		pr_err("%s : No client\n", __func__);
+		ret = -EINVAL;
+		goto err_client;
+	}
+
+	chg->pdata = client->dev.platform_data;
+	if (!chg->pdata) {
+		pr_err("%s : No platform data supplied\n", __func__);
+		ret = -EINVAL;
+		goto err_pdata;
+	}
+
+	i2c_set_clientdata(client, chg);
+	smb136_chg = chg;
+	pr_info("register callback functions!\n");
+
+	chg->callbacks->set_charging_state = smb136_set_charging_state;
+	chg->callbacks->get_charging_state = smb136_get_charging_state;
+	chg->callbacks->set_charging_current = smb136_set_charging_current;
+	chg->callbacks->get_charging_current = smb136_get_charging_current;
+	if (chg->pdata && chg->pdata->register_callbacks)
+		chg->pdata->register_callbacks(chg->callbacks);
+
+	charger_i2c_init = 1;
+	pr_info("Smb136 charger attach success!!!\n");
+
+	smb136_test_read();
+
+	return 0;
+
+err_pdata:
+err_client:
+err_callbacks:
+	kfree(chg);
+	return ret;
+}
+
+static int __devexit smb136_remove(struct i2c_client *client)
+{
+	struct smb136_chg_data *chg = i2c_get_clientdata(client);
+
+	if (chg->pdata && chg->pdata->unregister_callbacks)
+		chg->pdata->unregister_callbacks();
+
+	kfree(chg);
+	return 0;
+}
+
+static const struct i2c_device_id smb136_id[] = {
+	{ "smb136-charger", 0 },
+	{ }
+};
+
+
+static struct i2c_driver smb136_i2c_driver = {
+	.driver = {
+		.owner	= THIS_MODULE,
+		.name	= "smb136-charger",
+	},
+	.id_table	= smb136_id,
+	.probe	= smb136_i2c_probe,
+	.remove	= __devexit_p(smb136_remove),
+	.command = NULL,
+};
+
+
+MODULE_DEVICE_TABLE(i2c, smb136_id);
+
+static int __init smb136_init(void)
+{
+	return i2c_add_driver(&smb136_i2c_driver);
+}
+
+static void __exit smb136_exit(void)
+{
+	i2c_del_driver(&smb136_i2c_driver);
+}
+
+module_init(smb136_init);
+module_exit(smb136_exit);
+
+MODULE_AUTHOR("Ikkeun Kim <iks.kim@samsung.com>");
+MODULE_DESCRIPTION("smb136 charger driver");
+MODULE_LICENSE("GPL");
diff --git a/drivers/power/smb136_charger_q1.c b/drivers/power/smb136_charger_q1.c
new file mode 100644
index 0000000..da545e0
--- /dev/null
+++ b/drivers/power/smb136_charger_q1.c
@@ -0,0 +1,531 @@
+/*
+ *  smb136_charger.c
+ *
+ *  Copyright (C) 2011 Samsung Electronics
+ *  Ikkeun Kim <iks.kim@samsung.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#include <linux/power/smb136_charger_q1.h>
+#define DEBUG
+
+enum cable_type_t {
+	CABLE_TYPE_NONE = 0,
+	CABLE_TYPE_USB,
+	CABLE_TYPE_AC,
+	CABLE_TYPE_MISC,
+};
+
+static int smb136_i2c_read(struct i2c_client *client, u8 reg, u8 *data)
+{
+	int ret = 0;
+
+	if (!client)
+		return -ENODEV;
+
+	ret = i2c_smbus_read_byte_data(client, reg);
+	if (ret < 0)
+		return -EIO;
+
+	*data = ret & 0xff;
+	return 0;
+}
+
+static int smb136_i2c_write(struct i2c_client *client, u8 reg, u8 data)
+{
+	if (!client)
+		return -ENODEV;
+
+	return i2c_smbus_write_byte_data(client, reg, data);
+}
+
+static void smb136_test_read(struct i2c_client *client)
+{
+	struct smb136_chip *chg = i2c_get_clientdata(client);
+	u8 data = 0;
+	u32 addr = 0;
+
+	for (addr = 0; addr < 0x0c; addr++) {
+		smb136_i2c_read(chg->client, addr, &data);
+		dev_info(&client->dev,
+			"SMB136 addr : 0x%02x data : 0x%02x\n", addr, data);
+	}
+
+	for (addr = 0x31; addr < 0x3D; addr++) {
+		smb136_i2c_read(chg->client, addr, &data);
+		dev_info(&client->dev,
+			"SMB136 addr : 0x%02x data : 0x%02x\n", addr, data);
+	}
+}
+
+static int smb136_get_charging_status(struct i2c_client *client)
+{
+	struct smb136_chip *chg = i2c_get_clientdata(client);
+	int status = POWER_SUPPLY_STATUS_UNKNOWN;
+	u8 data1 = 0;
+	u8 data2 = 0;
+
+	smb136_i2c_read(chg->client, 0x36, &data1);
+	smb136_i2c_read(chg->client, 0x39, &data2);
+	dev_info(&client->dev, "%s : 0x36h(0x%02x), 0x39h(0x%02x)\n",
+		__func__, data1, data2);
+
+	if (data2 & 0x01)
+		status = POWER_SUPPLY_STATUS_CHARGING;
+	else {
+		if ((data1 & 0x08) == 0x08) {
+			/* if error bit check,
+				ignore the status of charger-ic */
+			status = POWER_SUPPLY_STATUS_NOT_CHARGING;
+		} else if ((data1 & 0xc0) == 0xc0) {
+			/* At least one charge cycle terminated,
+				Charge current < Termination Current */
+			status = POWER_SUPPLY_STATUS_FULL;
+		}
+	}
+
+	return (int)status;
+}
+
+static int smb136_charging(struct i2c_client *client)
+{
+	struct smb136_chip *chg = i2c_get_clientdata(client);
+	u8 data = 0;
+	int gpio = 0;
+
+	dev_info(&client->dev, "%s : enable(%d), cable(%d)\n",
+		__func__, chg->is_enable, chg->cable_type);
+
+	if (chg->is_enable) {
+		switch (chg->cable_type) {
+		case CABLE_TYPE_AC:
+			/* 1. HC mode */
+			data = 0x8c;
+
+			smb136_i2c_write(chg->client, SMB_CommandA, data);
+			udelay(10);
+
+			/* 2. Change USB5/1/HC Control from Pin to I2C */
+			/* 2. EN pin control - active low */
+			smb136_i2c_write(chg->client, SMB_PinControl, 0x8);
+			udelay(10);
+
+			smb136_i2c_write(chg->client, SMB_CommandA, 0x8c);
+			udelay(10);
+
+			/* 3. Set charge current to 950mA,
+				termination current to 150mA */
+			data = 0x94;
+
+			smb136_i2c_write(chg->client, SMB_ChargeCurrent, data);
+			udelay(10);
+			break;
+		case CABLE_TYPE_USB:
+		default:
+			/* 1. USBIN 500mA mode */
+			data = 0x88;
+
+			smb136_i2c_write(chg->client, SMB_CommandA, data);
+			udelay(10);
+
+			/* 2. Change USB5/1/HC Control from Pin to I2C */
+			/* 2. EN pin control - active low */
+			smb136_i2c_write(chg->client, SMB_PinControl, 0x8);
+			udelay(10);
+
+			smb136_i2c_write(chg->client, SMB_CommandA, 0x88);
+			udelay(10);
+
+			/* 3. Set charge current to 500mA,
+				termination current to 150mA */
+			data = 0x14;
+
+			smb136_i2c_write(chg->client, SMB_ChargeCurrent, data);
+			udelay(10);
+			break;
+		}
+
+		/* 3. Enable Automatic Input Current Limit to 1000mA
+			(threshold 4.25V) */
+		data = 0x60;
+		smb136_i2c_write(chg->client, SMB_InputCurrentLimit, data);
+		udelay(10);
+
+		/* 4. Automatic Recharge Disabed */
+		data = 0x8c;
+		smb136_i2c_write(chg->client, SMB_ControlA, data);
+		udelay(10);
+
+		/* 5. Safety timer Disabled */
+		data = 0x28;
+		smb136_i2c_write(chg->client, SMB_ControlB, data);
+		udelay(10);
+
+		/* 6. Disable USB D+/D- Detection */
+		data = 0x28;
+		smb136_i2c_write(chg->client, SMB_OTGControl, data);
+		udelay(10);
+
+		/* 7. Set Output Polarity for STAT */
+		/* 7. Set float voltage to 4.2V */
+		data = 0x4a;
+		smb136_i2c_write(chg->client, SMB_FloatVoltage, data);
+		udelay(10);
+
+		/* 8. Re-load Enable */
+		data = 0x4b;
+		smb136_i2c_write(chg->client, SMB_SafetyTimer, data);
+		udelay(10);
+	} else {
+		/* do nothing... */
+	}
+
+	/* CHG_EN pin control - active low */
+	gpio = gpio_request(chg->pdata->gpio_chg_en, "CHG_EN");
+	if (!gpio) {
+		gpio_direction_output(chg->pdata->gpio_chg_en,
+			!(chg->is_enable));
+		dev_info(&client->dev, "gpio(CHG_EN)is %d\n",
+			gpio_get_value(chg->pdata->gpio_chg_en));
+		gpio_free(chg->pdata->gpio_chg_en);
+	} else
+		dev_err(&client->dev,
+			"faile to request gpio(CHG_EN)\n");
+
+	/* smb136_test_read(client); */
+
+	return 0;
+}
+
+static int smb136_get_property(struct power_supply *psy,
+			    enum power_supply_property psp,
+			    union power_supply_propval *val)
+{
+	struct smb136_chip *chip = container_of(psy,
+						  struct smb136_chip,
+						  charger);
+	u8 data;
+
+	switch (psp) {
+	case POWER_SUPPLY_PROP_STATUS:
+		val->intval = smb136_get_charging_status(chip->client);
+		break;
+	case POWER_SUPPLY_PROP_CHARGE_TYPE:
+		val->intval = chip->cable_type;
+		break;
+	case POWER_SUPPLY_PROP_ONLINE:
+		val->intval = chip->is_enable;
+		break;
+	case POWER_SUPPLY_PROP_CURRENT_NOW:
+		smb136_i2c_read(chip->client, SMB_ChargeCurrent, &data);
+		switch (data >> 5) {
+		case 0:
+			val->intval = 500;
+			break;
+		case 1:
+			val->intval = 650;
+			break;
+		case 2:
+			val->intval = 750;
+			break;
+		case 3:
+			val->intval = 850;
+			break;
+		case 4:
+			val->intval = 950;
+			break;
+		case 5:
+			val->intval = 1100;
+			break;
+		case 6:
+			val->intval = 1300;
+			break;
+		case 7:
+			val->intval = 1500;
+			break;
+		}
+		break;
+	default:
+		return -EINVAL;
+	}
+
+	dev_info(&chip->client->dev, "%s: smb136_get_property (%d,%d)\n",
+		__func__, psp, val->intval);
+
+	return 0;
+}
+
+static int smb136_set_property(struct power_supply *psy,
+			    enum power_supply_property psp,
+			    const union power_supply_propval *val)
+{
+	struct smb136_chip *chip = container_of(psy,
+						  struct smb136_chip,
+						  charger);
+
+	dev_info(&chip->client->dev, "%s: smb136_set_property (%d,%d)\n",
+		__func__, psp, val->intval);
+
+	switch (psp) {
+	case POWER_SUPPLY_PROP_STATUS:
+		chip->is_enable = (val->intval == POWER_SUPPLY_STATUS_CHARGING);
+		smb136_charging(chip->client);
+		break;
+	case POWER_SUPPLY_PROP_CHARGE_TYPE:
+		switch (val->intval) {
+		case CABLE_TYPE_USB:
+		case CABLE_TYPE_AC:
+			chip->cable_type = val->intval;
+			break;
+		default:
+			dev_err(&chip->client->dev, "cable type NOT supported!\n");
+			chip->cable_type = CABLE_TYPE_NONE;
+			break;
+		}
+		break;
+	case POWER_SUPPLY_PROP_ONLINE:
+		chip->is_enable = (bool)val->intval;
+		smb136_charging(chip->client);
+		break;
+	case POWER_SUPPLY_PROP_CURRENT_NOW:
+		if (val->intval <= 450)
+			chip->cable_type = CABLE_TYPE_USB;	/* USB */
+		else
+			chip->cable_type = CABLE_TYPE_AC;	/* TA */
+		break;
+	default:
+		return -EINVAL;
+	}
+	return 0;
+}
+
+#if defined(CONFIG_MACH_Q1_CHN) && defined(CONFIG_SMB136_CHARGER_Q1)
+static bool is_ovp_status;
+#endif
+
+static irqreturn_t smb136_irq_thread(int irq, void *data)
+{
+	struct smb136_chip *chip = data;
+#if defined(CONFIG_MACH_Q1_CHN) && defined(CONFIG_SMB136_CHARGER_Q1)
+	int ret = 0;
+	u8 data1 = 0;
+#endif
+
+	dev_info(&chip->client->dev, "%s\n", __func__);
+
+	smb136_test_read(chip->client);
+#if defined(CONFIG_MACH_Q1_CHN) && defined(CONFIG_SMB136_CHARGER_Q1)
+	smb136_i2c_read(chip->client, 0x33, &data1);
+
+	if (data1 & 0x02) {
+		if (is_ovp_status == false) {
+			is_ovp_status = true;
+			if (chip->pdata->ovp_cb)
+				ret = chip->pdata->ovp_cb(true);
+			dev_info(&chip->client->dev, "$s OVP!!\n");
+		}
+	} else {
+		if (is_ovp_status == true) {
+			is_ovp_status = false;
+			if (chip->pdata->ovp_cb)
+				ret = chip->pdata->ovp_cb(false);
+			dev_info(&chip->client->dev,
+				"$s ovp status released!!\n");
+		}
+	}
+#endif
+
+	return IRQ_HANDLED;
+}
+
+static int smb136_irq_init(struct smb136_chip *chip)
+{
+	struct i2c_client *client = chip->client;
+	int ret;
+
+	if (client->irq) {
+		ret = request_threaded_irq(client->irq, NULL,
+#if defined(CONFIG_MACH_Q1_CHN) && defined(CONFIG_SMB136_CHARGER_Q1)
+			smb136_irq_thread, IRQ_TYPE_EDGE_BOTH,
+#else
+			smb136_irq_thread, IRQ_TYPE_EDGE_FALLING,
+#endif
+			"SMB136 charger", chip);
+		if (ret) {
+			dev_err(&client->dev, "failed to reqeust IRQ\n");
+			return ret;
+		}
+
+		ret = enable_irq_wake(client->irq);
+		if (ret < 0)
+			dev_err(&client->dev,
+				"failed to enable wakeup src %d\n", ret);
+	}
+
+	return 0;
+}
+
+static int smb136_probe(struct i2c_client *client,
+	const struct i2c_device_id *id)
+{
+	struct i2c_adapter *adapter = to_i2c_adapter(client->dev.parent);
+	struct smb136_chip *chip;
+	int ret = 0;
+	int gpio = 0;
+	u8 data;
+
+	if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BYTE))
+		return -EIO;
+
+	if (smb136_i2c_read(client, 0x36, &data) < 0)	/* check HW */
+		return -EIO;
+
+	dev_info(&client->dev,
+		"%s : SMB136 Charger Driver Loading\n", __func__);
+
+	chip = kzalloc(sizeof(struct smb136_chip), GFP_KERNEL);
+	if (!chip)
+		return -ENOMEM;
+
+	chip->client = client;
+	chip->pdata = client->dev.platform_data;
+
+	i2c_set_clientdata(client, chip);
+
+	if (!chip->pdata) {
+		dev_err(&client->dev,
+			"%s : No platform data supplied\n", __func__);
+		ret = -EINVAL;
+		goto err_pdata;
+	}
+
+	if (chip->pdata->set_charger_name)
+		chip->pdata->set_charger_name();
+
+	chip->is_enable = false;
+	chip->cable_type = CABLE_TYPE_NONE;
+
+	chip->charger.name		= "smb136-charger";
+	chip->charger.type		= POWER_SUPPLY_TYPE_BATTERY;
+	chip->charger.get_property	= smb136_get_property;
+	chip->charger.set_property	= smb136_set_property;
+	chip->charger.properties	= smb136_charger_props;
+	chip->charger.num_properties	= ARRAY_SIZE(smb136_charger_props);
+
+	ret = power_supply_register(&client->dev, &chip->charger);
+	if (ret) {
+		dev_err(&client->dev,
+			"failed: power supply register\n");
+		kfree(chip);
+		return ret;
+	}
+
+	/* CHG_EN pin control - active low */
+	if (chip->pdata->gpio_chg_en) {
+		s3c_gpio_cfgpin(chip->pdata->gpio_chg_en, S3C_GPIO_OUTPUT);
+		s3c_gpio_setpull(chip->pdata->gpio_chg_en, S3C_GPIO_PULL_NONE);
+
+		gpio = gpio_request(chip->pdata->gpio_chg_en, "CHG_EN");
+		if (!gpio) {
+			gpio_direction_output(chip->pdata->gpio_chg_en,
+				GPIO_LEVEL_HIGH);
+			gpio_free(chip->pdata->gpio_chg_en);
+		} else
+			dev_err(&client->dev,
+			"faile to request gpio(CHG_EN)\n");
+	}
+
+	if (chip->pdata->gpio_otg_en) {
+		s3c_gpio_cfgpin(chip->pdata->gpio_otg_en, S3C_GPIO_OUTPUT);
+		s3c_gpio_setpull(chip->pdata->gpio_otg_en, S3C_GPIO_PULL_NONE);
+
+		gpio = gpio_request(chip->pdata->gpio_otg_en, "OTG_EN");
+		if (!gpio) {
+			gpio_direction_output(chip->pdata->gpio_otg_en,
+				GPIO_LEVEL_LOW);
+			gpio_free(chip->pdata->gpio_otg_en);
+		} else
+			dev_err(&client->dev,
+			"faile to request gpio(OTG_EN)\n");
+	}
+
+	if (chip->pdata->gpio_ta_nconnected) {
+		s3c_gpio_cfgpin(chip->pdata->gpio_ta_nconnected,
+			S3C_GPIO_INPUT);
+		s3c_gpio_setpull(chip->pdata->gpio_ta_nconnected,
+			S3C_GPIO_PULL_NONE);
+	}
+
+	if (chip->pdata->gpio_chg_ing) {
+#if 1
+#if defined(CONFIG_MACH_Q1_CHN) && defined(CONFIG_SMB136_CHARGER_Q1)
+		s3c_gpio_cfgpin(chip->pdata->gpio_chg_ing, S3C_GPIO_SFN(0xf));
+#endif
+		client->irq = gpio_to_irq(chip->pdata->gpio_chg_ing);
+		ret = smb136_irq_init(chip);
+		if (ret)
+			goto err_pdata;
+#else
+		s3c_gpio_cfgpin(chip->pdata->gpio_chg_ing, S3C_GPIO_INPUT);
+		s3c_gpio_setpull(chip->pdata->gpio_chg_ing, S3C_GPIO_PULL_NONE);
+#endif
+	}
+
+#if defined(CONFIG_MACH_Q1_CHN) && defined(CONFIG_SMB136_CHARGER_Q1)
+	is_ovp_status = false;
+#endif
+
+	smb136_test_read(client);
+
+	return 0;
+
+err_pdata:
+	kfree(chip);
+	return ret;
+}
+
+static int __devexit smb136_remove(struct i2c_client *client)
+{
+	struct smb136_chip *chip = i2c_get_clientdata(client);
+
+	kfree(chip);
+	return 0;
+}
+
+static const struct i2c_device_id smb136_id[] = {
+	{"smb136-charger", 0},
+	{}
+};
+
+MODULE_DEVICE_TABLE(i2c, smb136_id);
+
+static struct i2c_driver smb136_i2c_driver = {
+	.driver = {
+		.owner	= THIS_MODULE,
+		.name	= "smb136-charger",
+	},
+	.probe	= smb136_probe,
+	.remove	= __devexit_p(smb136_remove),
+	.command = NULL,
+	.id_table	= smb136_id,
+};
+
+static int __init smb136_init(void)
+{
+	return i2c_add_driver(&smb136_i2c_driver);
+}
+
+static void __exit smb136_exit(void)
+{
+	i2c_del_driver(&smb136_i2c_driver);
+}
+
+module_init(smb136_init);
+module_exit(smb136_exit);
+
+MODULE_AUTHOR("Ikkeun Kim <iks.kim@samsung.com>");
+MODULE_DESCRIPTION("smb136 charger driver");
+MODULE_LICENSE("GPL");
diff --git a/drivers/power/smb328_charger.c b/drivers/power/smb328_charger.c
new file mode 100644
index 0000000..93fd8cb
--- /dev/null
+++ b/drivers/power/smb328_charger.c
@@ -0,0 +1,1046 @@
+/*
+ *  smb328_charger.c
+ *
+ *  Copyright (C) 2011 Samsung Electronics
+ *  Ikkeun Kim <iks.kim@samsung.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#include <linux/power/smb328_charger.h>
+#define DEBUG
+
+enum cable_type_t {
+	CABLE_TYPE_NONE = 0,
+	CABLE_TYPE_USB,
+	CABLE_TYPE_AC,
+	CABLE_TYPE_MISC,
+	CABLE_TYPE_OTG,
+};
+
+#if defined(CONFIG_MACH_Q1_CHN) && defined(CONFIG_SMB328_CHARGER)
+static bool is_ovp_status;
+#endif
+
+static int smb328_i2c_read(struct i2c_client *client, u8 reg, u8 *data)
+{
+	int ret = 0;
+
+	if (!client)
+		return -ENODEV;
+
+	ret = i2c_smbus_read_byte_data(client, reg);
+	if (ret < 0)
+		return -EIO;
+
+	*data = ret & 0xff;
+	return *data;
+}
+
+static int smb328_i2c_write(struct i2c_client *client, u8 reg, u8 data)
+{
+	if (!client)
+		return -ENODEV;
+
+	return i2c_smbus_write_byte_data(client, reg, data);
+}
+
+static void smb328_test_read(struct i2c_client *client)
+{
+	struct smb328_chip *chg = i2c_get_clientdata(client);
+	u8 data = 0;
+	u32 addr = 0;
+
+	for (addr = 0; addr < 0x0c; addr++) {
+		smb328_i2c_read(chg->client, addr, &data);
+		dev_info(&client->dev,
+			"smb328 addr : 0x%02x data : 0x%02x\n", addr, data);
+	}
+
+	for (addr = 0x30; addr < 0x3D; addr++) {
+		smb328_i2c_read(chg->client, addr, &data);
+		dev_info(&client->dev,
+			"smb328 addr : 0x%02x data : 0x%02x\n", addr, data);
+	}
+}
+
+static void smb328a_charger_function_conrol(struct i2c_client *client);
+
+static int smb328_get_charging_status(struct i2c_client *client)
+{
+	struct smb328_chip *chg = i2c_get_clientdata(client);
+	int status = POWER_SUPPLY_STATUS_UNKNOWN;
+	u8 data_a = 0;
+	u8 data_b = 0;
+	u8 data_c = 0;
+
+	smb328_i2c_read(chg->client,
+		SMB328A_BATTERY_CHARGING_STATUS_A, &data_a);
+	dev_info(&client->dev, "%s : charging status A(0x%02x)\n",
+		__func__, data_a);
+	smb328_i2c_read(chg->client,
+		SMB328A_BATTERY_CHARGING_STATUS_B, &data_b);
+	dev_info(&client->dev, "%s : charging status B(0x%02x)\n",
+		__func__, data_b);
+	smb328_i2c_read(chg->client,
+		SMB328A_BATTERY_CHARGING_STATUS_C, &data_c);
+	dev_info(&client->dev, "%s : charging status C(0x%02x)\n",
+		__func__, data_c);
+
+	/* check for safety timer in USB charging */
+	/* If safety timer is activated in USB charging, reset charger */
+#if 1
+	/* write 0xAA in register 0x30 to reset watchdog timer, */
+	/* it can replace this work-around */
+	if (chg->is_enable && chg->cable_type == CABLE_TYPE_USB) {
+		if ((data_c & 0x30) == 0x20) {	/* safety timer activated */
+			/* reset charger */
+			dev_info(&client->dev,
+			"%s : Reset charger, safety timer is activated!\n",
+			__func__);
+
+			chg->is_enable = false;
+			smb328a_charger_function_conrol(chg->client);
+
+			chg->is_enable = true;
+			smb328a_charger_function_conrol(chg->client);
+		}
+	}
+#endif
+
+	/* At least one charge cycle terminated, */
+	/* Charge current < Termination Current */
+	if ((data_c & 0xc0) == 0xc0) {
+		/* top-off by full charging */
+		status = POWER_SUPPLY_STATUS_FULL;
+		goto charging_status_end;
+	}
+
+	/* Is enabled ? */
+	if (data_c & 0x01) {
+		/* check for 0x30 : 'safety timer' (0b01 or 0b10) or */
+		/* 'waiting to begin charging' (0b11) */
+		/* check for 0x06 : no charging (0b00) */
+		if ((data_c & 0x30) || !(data_c & 0x06))  {
+			/* not charging */
+			status = POWER_SUPPLY_STATUS_NOT_CHARGING;
+			goto charging_status_end;
+		} else {
+			status = POWER_SUPPLY_STATUS_CHARGING;
+			goto charging_status_end;
+		}
+	} else
+		status = POWER_SUPPLY_STATUS_DISCHARGING;
+
+charging_status_end:
+	return (int)status;
+}
+
+static int smb328_get_charging_health(struct i2c_client *client)
+{
+	struct smb328_chip *chg = i2c_get_clientdata(client);
+	int health = POWER_SUPPLY_HEALTH_GOOD;
+	u8 data_a = 0;
+	u8 data_b = 0;
+	u8 data_c = 0;
+
+	smb328_i2c_read(chg->client,
+		SMB328A_BATTERY_CHARGING_STATUS_A, &data_a);
+	dev_info(&client->dev, "%s : charging status A(0x%02x)\n",
+		__func__, data_a);
+	smb328_i2c_read(chg->client,
+		SMB328A_BATTERY_CHARGING_STATUS_B, &data_b);
+	dev_info(&client->dev, "%s : charging status B(0x%02x)\n",
+		__func__, data_b);
+	smb328_i2c_read(chg->client,
+		SMB328A_BATTERY_CHARGING_STATUS_C, &data_c);
+	dev_info(&client->dev, "%s : charging status C(0x%02x)\n",
+		__func__, data_c);
+
+	/* Is enabled ? */
+	if (data_c & 0x01) {
+		if (!(data_a & 0x02))	/* Input current is NOT OK */
+			health = POWER_SUPPLY_HEALTH_OVERVOLTAGE;
+	}
+
+#if defined(CONFIG_MACH_Q1_CHN)
+	{
+		u8 data_chn;
+		smb328_i2c_read(chg->client, 0x37, &data_chn);
+		dev_info(&client->dev,
+			"%s : charging interrupt status C(0x%02x)\n",
+			__func__, data_c);
+
+		if (data_chn & 0x04)
+			health = POWER_SUPPLY_HEALTH_OVERVOLTAGE;
+
+		if (health == POWER_SUPPLY_HEALTH_OVERVOLTAGE)
+			is_ovp_status = true;
+		else
+			is_ovp_status = false;
+	}
+#endif
+	return (int)health;
+}
+
+#if defined(CONFIG_MACH_Q1_CHN)
+static int smb328_is_ovp_status(struct i2c_client *client)
+{
+	struct smb328_chip *chg = i2c_get_clientdata(client);
+	int status = POWER_SUPPLY_HEALTH_UNKNOWN;
+	u8 data = 0;
+
+	smb328_i2c_read(chg->client, 0x37, &data);
+	dev_info(&client->dev, "%s : 0x37h(0x%02x)\n",
+		__func__, data);
+
+	if (data & 0x04) {
+		is_ovp_status = true;
+		status = POWER_SUPPLY_HEALTH_OVERVOLTAGE;
+	} else {
+		is_ovp_status = false;
+		status = POWER_SUPPLY_HEALTH_GOOD;
+	}
+
+	return (int)status;
+}
+#endif
+
+static void smb328a_allow_volatile_writes(struct i2c_client *client)
+{
+	int val, reg;
+	u8 data;
+
+	reg = SMB328A_COMMAND;
+	val = smb328_i2c_read(client, reg, &data);
+	if ((val >= 0) && !(val & 0x80)) {
+		data = (u8)val;
+		dev_info(&client->dev, "%s : reg (0x%x) = 0x%x\n",
+			__func__, reg, data);
+		data |= (0x1 << 7);
+		if (smb328_i2c_write(client, reg, data) < 0)
+			pr_err("%s : error!\n", __func__);
+		val = smb328_i2c_read(client, reg, &data);
+		if (val >= 0) {
+			data = (u8)data;
+			pr_info("%s : => reg (0x%x) = 0x%x\n",
+				__func__, reg, data);
+		}
+	}
+}
+
+static void smb328a_charger_function_conrol(struct i2c_client *client)
+{
+	struct smb328_chip *chip = i2c_get_clientdata(client);
+	int val, reg;
+	u8 data, set_data;
+
+	if (chip->is_otg) {
+		dev_info(&client->dev,
+		"%s : OTG is activated. Ignore command (type:%d, enable:%s)\n",
+		__func__, chip->cable_type,
+		chip->is_enable ? "true" : "false");
+		return;
+	}
+
+	smb328a_allow_volatile_writes(client);
+
+	if (!chip->is_enable) {
+		reg = SMB328A_FUNCTION_CONTROL_B;
+		val = smb328_i2c_read(client, reg, &data);
+		if (val >= 0) {
+			data = (u8)val;
+			dev_info(&client->dev, "%s : reg (0x%x) = 0x%x\n",
+				__func__, reg, data);
+			if (data != 0x0) {
+				data = 0x0;
+				if (smb328_i2c_write(client, reg, data) < 0)
+					pr_err("%s : error!\n", __func__);
+				val = smb328_i2c_read(client, reg, &data);
+				if (val >= 0) {
+					data = (u8)val;
+					dev_info(&client->dev,
+						"%s : => reg (0x%x) = 0x%x\n",
+						__func__, reg, data);
+				}
+			}
+		}
+
+		reg = SMB328A_COMMAND;
+		val = smb328_i2c_read(client, reg, &data);
+		if (val >= 0) {
+			data = (u8)val;
+			dev_info(&client->dev, "%s : reg (0x%x) = 0x%x\n",
+				__func__, reg, data);
+			data = 0x98;	/* turn off charger */
+			if (smb328_i2c_write(client, reg, data) < 0)
+				pr_err("%s : error!\n", __func__);
+			val = smb328_i2c_read(client, reg, &data);
+			if (val >= 0) {
+				data = (u8)val;
+				dev_info(&client->dev,
+					"%s : => reg (0x%x) = 0x%x\n",
+					__func__, reg, data);
+			}
+		}
+	} else {
+		/* reset watchdog timer if it occured */
+		reg = SMB328A_CLEAR_IRQ;
+		val = smb328_i2c_read(client, reg, &data);
+		if (val >= 0) {
+			data = (u8)val;
+			dev_info(&client->dev, "%s : reg (0x%x) = 0x%x\n",
+				__func__, reg, data);
+			data = 0xaa;
+			if (smb328_i2c_write(client, reg, data) < 0)
+				pr_err("%s : error!\n", __func__);
+			val = smb328_i2c_read(client, reg, &data);
+			if (val >= 0) {
+				data = (u8)val;
+				dev_info(&client->dev,
+					"%s : => reg (0x%x) = 0x%x\n",
+					__func__, reg, data);
+			}
+		}
+
+		reg = SMB328A_INPUT_AND_CHARGE_CURRENTS;
+		val = smb328_i2c_read(client, reg, &data);
+		if (val >= 0) {
+			data = (u8)val;
+			dev_info(&client->dev, "%s : reg (0x%x) = 0x%x\n",
+				__func__, reg, data);
+			if (chip->cable_type == CABLE_TYPE_AC) {
+				/* fast 1000mA, termination 200mA */
+				set_data = 0xb7;
+			} else if (chip->cable_type == CABLE_TYPE_MISC) {
+				/* fast 700mA, termination 200mA */
+				set_data = 0x57;
+			} else {
+				/* fast 500mA, termination 200mA */
+				set_data = 0x17;
+			}
+			if (data != set_data) {
+				/* this can be changed with top-off setting */
+				data = set_data;
+				if (smb328_i2c_write(client, reg, data) < 0)
+					pr_err("%s : error!\n", __func__);
+				val = smb328_i2c_read(client, reg, &data);
+				if (val >= 0) {
+					data = (u8)val;
+					dev_info(&client->dev,
+						"%s : => reg (0x%x) = 0x%x\n",
+						__func__, reg, data);
+				}
+			}
+		}
+
+		reg = SMB328A_CURRENT_TERMINATION;
+		val = smb328_i2c_read(client, reg, &data);
+		if (val >= 0) {
+			data = (u8)val;
+			dev_info(&client->dev, "%s : reg (0x%x) = 0x%x\n",
+				__func__, reg, data);
+			if (chip->cable_type == CABLE_TYPE_AC) {
+				/* input 1A, threshold 4.25V, AICL enable */
+				set_data = 0xb0;
+			} else if (chip->cable_type == CABLE_TYPE_MISC) {
+				/* input 700mA, threshold 4.25V, AICL enable */
+				set_data = 0x50;
+			} else {
+				/* input 450mA, threshold 4.25V, AICL disable */
+				set_data = 0x14;
+#if defined(CONFIG_MACH_Q1_CHN)
+				/* turn off pre-bias for ovp */
+				set_data &= ~(0x10);
+#endif
+			}
+			if (data != set_data) {
+				data = set_data;
+				if (smb328_i2c_write(client, reg, data) < 0)
+					pr_err("%s : error!\n", __func__);
+				val = smb328_i2c_read(client, reg, &data);
+				if (val >= 0) {
+					data = (u8)val;
+					dev_info(&client->dev,
+						"%s : => reg (0x%x) = 0x%x\n",
+						__func__, reg, data);
+				}
+			}
+		}
+
+		reg = SMB328A_FLOAT_VOLTAGE;
+		val = smb328_i2c_read(client, reg, &data);
+		if (val >= 0) {
+			data = (u8)val;
+			dev_info(&client->dev, "%s : reg (0x%x) = 0x%x\n",
+				__func__, reg, data);
+			if (data != 0xca) {
+				data = 0xca; /* 4.2V float voltage */
+				if (smb328_i2c_write(client, reg, data) < 0)
+					pr_err("%s : error!\n", __func__);
+				val = smb328_i2c_read(client, reg, &data);
+				if (val >= 0) {
+					data = (u8)val;
+					dev_info(&client->dev,
+						"%s : => reg (0x%x) = 0x%x\n",
+						__func__, reg, data);
+				}
+			}
+		}
+
+		reg = SMB328A_FUNCTION_CONTROL_A1;
+		val = smb328_i2c_read(client, reg, &data);
+		if (val >= 0) {
+			data = (u8)val;
+			dev_info(&client->dev, "%s : reg (0x%x) = 0x%x\n",
+				__func__, reg, data);
+#if 1
+			if (data != 0xda) {
+				data = 0xda;	/* top-off by ADC */
+#else
+			if (data != 0x9a) {
+				data = 0x9a;	/* top-off by charger */
+#endif
+				if (smb328_i2c_write(client, reg, data) < 0)
+					pr_err("%s : error!\n", __func__);
+				val = smb328_i2c_read(client, reg, &data);
+				if (val >= 0) {
+					data = (u8)val;
+					dev_info(&client->dev,
+						"%s : => reg (0x%x) = 0x%x\n",
+						__func__, reg, data);
+				}
+			}
+		}
+
+		reg = SMB328A_FUNCTION_CONTROL_A2;
+		val = smb328_i2c_read(client, reg, &data);
+		if (val >= 0) {
+			data = (u8)val;
+			dev_info(&client->dev, "%s : reg (0x%x) = 0x%x\n",
+				__func__, reg, data);
+			/* 0x4c -> 0x4e (watchdog timer enabled - SUMMIT) */
+			if (data != 0x4e) {
+				data = 0x4e;
+				if (smb328_i2c_write(client, reg, data) < 0)
+					pr_err("%s : error!\n", __func__);
+				val = smb328_i2c_read(client, reg, &data);
+				if (val >= 0) {
+					data = (u8)val;
+					dev_info(&client->dev,
+						"%s : => reg (0x%x) = 0x%x\n",
+						__func__, reg, data);
+				}
+			}
+		}
+
+		reg = SMB328A_FUNCTION_CONTROL_B;
+		val = smb328_i2c_read(client, reg, &data);
+		if (val >= 0) {
+			data = (u8)val;
+			dev_info(&client->dev, "%s : reg (0x%x) = 0x%x\n",
+				__func__, reg, data);
+			if (data != 0x0) {
+#if defined(CONFIG_MACH_Q1_CHN)
+				data = 0x80;
+#else
+				data = 0x0;
+#endif
+				if (smb328_i2c_write(client, reg, data) < 0)
+					pr_err("%s : error!\n", __func__);
+				val = smb328_i2c_read(client, reg, &data);
+				if (val >= 0) {
+					data = (u8)val;
+					dev_info(&client->dev,
+						"%s : => reg (0x%x) = 0x%x\n",
+						__func__, reg, data);
+				}
+			}
+		}
+
+		reg = SMB328A_OTG_PWR_AND_LDO_CONTROL;
+		val = smb328_i2c_read(client, reg, &data);
+		if (val >= 0) {
+			data = (u8)val;
+			dev_info(&client->dev, "%s : reg (0x%x) = 0x%x\n",
+				__func__, reg, data);
+			set_data = 0xf5;
+			if (chip->cable_type == CABLE_TYPE_AC)
+				set_data = 0xf5;
+			else if (chip->cable_type == CABLE_TYPE_MISC)
+				set_data = 0xf5;
+			else
+				set_data = 0xcd;
+			if (data != set_data) {
+				data = set_data;
+				if (smb328_i2c_write(client, reg, data) < 0)
+					pr_err("%s : error!\n", __func__);
+				val = smb328_i2c_read(client, reg, &data);
+				if (val >= 0) {
+					data = (u8)val;
+					dev_info(&client->dev,
+						"%s : => reg (0x%x) = 0x%x\n",
+						__func__, reg, data);
+				}
+			}
+		}
+
+		reg = SMB328A_VARIOUS_CONTROL_FUNCTION_A;
+		val = smb328_i2c_read(client, reg, &data);
+		if (val >= 0) {
+			data = (u8)val;
+			dev_info(&client->dev, "%s : reg (0x%x) = 0x%x\n",
+				__func__, reg, data);
+			if (data != 0xf6) {
+				/* this can be changed with top-off setting */
+				data = 0xf6;
+				if (smb328_i2c_write(client, reg, data) < 0)
+					pr_err("%s : error!\n", __func__);
+				val = smb328_i2c_read(client, reg, &data);
+				if (val >= 0) {
+					data = (u8)val;
+					dev_info(&client->dev,
+						"%s : => reg (0x%x) = 0x%x\n",
+						__func__, reg, data);
+				}
+			}
+		}
+
+		reg = SMB328A_CELL_TEMPERATURE_MONITOR;
+		val = smb328_i2c_read(client, reg, &data);
+		if (val >= 0) {
+			data = (u8)val;
+			dev_info(&client->dev, "%s : reg (0x%x) = 0x%x\n",
+				__func__, reg, data);
+			if (data != 0x0) {
+				data = 0x0;
+				if (smb328_i2c_write(client, reg, data) < 0)
+					pr_err("%s : error!\n", __func__);
+				val = smb328_i2c_read(client, reg, &data);
+				if (val >= 0) {
+					data = (u8)val;
+					dev_info(&client->dev,
+						"%s : => reg (0x%x) = 0x%x\n",
+						__func__, reg, data);
+				}
+			}
+		}
+
+		reg = SMB328A_INTERRUPT_SIGNAL_SELECTION;
+		val = smb328_i2c_read(client, reg, &data);
+		if (val >= 0) {
+			data = (u8)val;
+			dev_info(&client->dev, "%s : reg (0x%x) = 0x%x\n",
+				__func__, reg, data);
+			if (data != 0x0) {
+				data = 0x0;
+				if (smb328_i2c_write(client, reg, data) < 0)
+					pr_err("%s : error!\n", __func__);
+				val = smb328_i2c_read(client, reg, &data);
+				if (val >= 0) {
+					data = (u8)val;
+					dev_info(&client->dev,
+						"%s : => reg (0x%x) = 0x%x\n",
+						__func__, reg, data);
+				}
+			}
+		}
+
+		reg = SMB328A_COMMAND;
+		val = smb328_i2c_read(client, reg, &data);
+		if (val >= 0) {
+			data = (u8)val;
+			dev_info(&client->dev, "%s : reg (0x%x) = 0x%x\n",
+				__func__, reg, data);
+			/* turn on charger */
+			if (chip->cable_type == CABLE_TYPE_AC)
+				data = 0x8c;
+			else if (chip->cable_type == CABLE_TYPE_MISC)
+				data = 0x88;
+			else
+				data = 0x88; /* USB */
+			if (smb328_i2c_write(client, reg, data) < 0)
+				pr_err("%s : error!\n", __func__);
+			val = smb328_i2c_read(client, reg, &data);
+			if (val >= 0) {
+				data = (u8)val;
+				dev_info(&client->dev,
+					"%s : => reg (0x%x) = 0x%x\n",
+					__func__, reg, data);
+			}
+		}
+	}
+}
+
+static void smb328a_charger_otg_conrol(struct i2c_client *client)
+{
+	struct smb328_chip *chip = i2c_get_clientdata(client);
+	int val, reg;
+	u8 data;
+
+	smb328a_allow_volatile_writes(client);
+
+	if (chip->is_otg) {
+		reg = SMB328A_FUNCTION_CONTROL_B;
+		val = smb328_i2c_read(client, reg, &data);
+		if (val >= 0) {
+			data = (u8)val;
+			dev_info(&client->dev, "%s : reg (0x%x) = 0x%x\n",
+				__func__, reg, data);
+			if (data != 0x0) {
+				data = 0x0;
+				if (smb328_i2c_write(client, reg, data) < 0)
+					pr_err("%s : error!\n", __func__);
+				val = smb328_i2c_read(client, reg, &data);
+				if (val >= 0) {
+					data = (u8)val;
+					dev_info(&client->dev,
+						"%s : => reg (0x%x) = 0x%x\n",
+						__func__, reg, data);
+				}
+			}
+		}
+
+		/* delay for reset of charger */
+		mdelay(150);
+
+		reg = SMB328A_OTG_PWR_AND_LDO_CONTROL;
+		val = smb328_i2c_read(client, reg, &data);
+		if (val >= 0) {
+			data = (u8)val;
+			dev_info(&client->dev, "%s : reg (0x%x) = 0x%x\n",
+				__func__, reg, data);
+			data = 0xcd;	/* OTG 350mA */
+			if (smb328_i2c_write(client, reg, data) < 0)
+				pr_err("%s : error!\n", __func__);
+			val = smb328_i2c_read(client, reg, &data);
+			if (val >= 0) {
+				data = (u8)val;
+				dev_info(&client->dev,
+					"%s : => reg (0x%x) = 0x%x\n",
+					__func__, reg, data);
+			}
+		}
+
+		reg = SMB328A_COMMAND;
+		val = smb328_i2c_read(client, reg, &data);
+		if (val >= 0) {
+			data = (u8)val;
+			dev_info(&client->dev, "%s : reg (0x%x) = 0x%x\n",
+				__func__, reg, data);
+			data = 0x9a;	/* turn on OTG */
+			if (smb328_i2c_write(client, reg, data) < 0)
+				pr_err("%s : error!\n", __func__);
+			val = smb328_i2c_read(client, reg, &data);
+			if (val >= 0) {
+				data = (u8)val;
+				dev_info(&client->dev,
+					"%s : => reg (0x%x) = 0x%x\n",
+					__func__, reg, data);
+			}
+		}
+	} else {
+		reg = SMB328A_FUNCTION_CONTROL_B;
+		val = smb328_i2c_read(client, reg, &data);
+		if (val >= 0) {
+			data = (u8)val;
+			dev_info(&client->dev, "%s : reg (0x%x) = 0x%x\n",
+				__func__, reg, data);
+			if (data != 0x0) {
+				data = 0x0c;	/* turn off charger */
+				if (smb328_i2c_write(client, reg, data) < 0)
+					pr_err("%s : error!\n", __func__);
+				val = smb328_i2c_read(client, reg, &data);
+				if (val >= 0) {
+					data = (u8)val;
+					dev_info(&client->dev,
+						"%s : => reg (0x%x) = 0x%x\n",
+						__func__, reg, data);
+				}
+			}
+		}
+
+		/* delay for reset of charger */
+		mdelay(150);
+
+		reg = SMB328A_COMMAND;
+		val = smb328_i2c_read(client, reg, &data);
+		if (val >= 0) {
+			data = (u8)val;
+			dev_info(&client->dev, "%s : reg (0x%x) = 0x%x\n",
+				__func__, reg, data);
+			data = 0x98;	/* turn off OTG */
+			if (smb328_i2c_write(client, reg, data) < 0)
+				pr_err("%s : error!\n", __func__);
+			val = smb328_i2c_read(client, reg, &data);
+			if (val >= 0) {
+				data = (u8)val;
+				dev_info(&client->dev,
+					"%s : => reg (0x%x) = 0x%x\n",
+					__func__, reg, data);
+			}
+		}
+	}
+}
+
+static int smb328_get_property(struct power_supply *psy,
+			    enum power_supply_property psp,
+			    union power_supply_propval *val)
+{
+	struct smb328_chip *chip = container_of(psy,
+						  struct smb328_chip,
+						  charger);
+	u8 data;
+
+	switch (psp) {
+	case POWER_SUPPLY_PROP_STATUS:
+		val->intval = smb328_get_charging_status(chip->client);
+		break;
+	case POWER_SUPPLY_PROP_CHARGE_TYPE:
+		val->intval = chip->cable_type;
+		break;
+	case POWER_SUPPLY_PROP_HEALTH:
+		val->intval = smb328_get_charging_health(chip->client);
+		break;
+	case POWER_SUPPLY_PROP_ONLINE:
+		val->intval = chip->is_enable;
+		break;
+	case POWER_SUPPLY_PROP_CURRENT_NOW:
+		if (chip->is_enable) {
+			smb328_i2c_read(chip->client,
+				SMB328A_INPUT_AND_CHARGE_CURRENTS, &data);
+			switch (data >> 5) {
+			case 0:
+				val->intval = 450;
+				break;
+			case 1:
+				val->intval = 600;
+				break;
+			case 2:
+				val->intval = 700;
+				break;
+			case 3:
+				val->intval = 800;
+				break;
+			case 4:
+				val->intval = 900;
+				break;
+			case 5:
+				val->intval = 1000;
+				break;
+			case 6:
+				val->intval = 1100;
+				break;
+			case 7:
+				val->intval = 1200;
+				break;
+			}
+		} else
+			val->intval = 0;
+		break;
+#if defined(CONFIG_MACH_Q1_CHN)
+	case POWER_SUPPLY_PROP_VOLTAGE_MAX:
+		val->intval = smb328_is_ovp_status(chip->client);
+		break;
+#endif
+	default:
+		return -EINVAL;
+	}
+
+	dev_info(&chip->client->dev, "%s: smb328_get_property (%d,%d)\n",
+		__func__, psp, val->intval);
+
+	return 0;
+}
+
+static int smb328_set_property(struct power_supply *psy,
+			    enum power_supply_property psp,
+			    const union power_supply_propval *val)
+{
+	struct smb328_chip *chip = container_of(psy,
+						  struct smb328_chip,
+						  charger);
+
+	dev_info(&chip->client->dev, "%s: smb328_set_property (%d,%d)\n",
+		__func__, psp, val->intval);
+
+	switch (psp) {
+	case POWER_SUPPLY_PROP_STATUS:
+#if defined(CONFIG_MACH_Q1_CHN)
+		is_ovp_status = false;
+#endif
+		chip->is_enable = (val->intval == POWER_SUPPLY_STATUS_CHARGING);
+		smb328a_charger_function_conrol(chip->client);
+		break;
+	case POWER_SUPPLY_PROP_CHARGE_TYPE:
+		/* only for OTG support */
+		chip->is_otg = val->intval;
+		smb328a_charger_otg_conrol(chip->client);
+		smb328_test_read(chip->client);
+		break;
+	case POWER_SUPPLY_PROP_HEALTH:
+		break;
+	case POWER_SUPPLY_PROP_ONLINE:
+		chip->is_enable = (bool)val->intval;
+		smb328a_charger_function_conrol(chip->client);
+		break;
+	case POWER_SUPPLY_PROP_CURRENT_NOW:
+		if (val->intval <= 450)
+			chip->cable_type = CABLE_TYPE_USB;
+		else
+			chip->cable_type = CABLE_TYPE_AC;
+		break;
+	default:
+		return -EINVAL;
+	}
+	return 0;
+}
+
+static irqreturn_t smb328_irq_thread(int irq, void *data)
+{
+	struct smb328_chip *chip = data;
+	int ret = 0;
+#if defined(CONFIG_MACH_Q1_CHN) && defined(CONFIG_SMB328_CHARGER)
+	u8 data1 = 0;
+#endif
+
+	dev_info(&chip->client->dev, "%s: chg_ing IRQ occurred!\n", __func__);
+
+#if defined(CONFIG_MACH_Q1_CHN) && defined(CONFIG_SMB328_CHARGER)
+	smb328_i2c_read(chip->client, 0x37, &data1);
+
+	if (data1 & 0x04) {
+		/* if usbin(usb vbus) is in over-voltage status. */
+		if (is_ovp_status == false) {
+			is_ovp_status = true;
+			if (chip->pdata->ovp_cb)
+				ret = chip->pdata->ovp_cb(true);
+			dev_info(&chip->client->dev, "$s OVP!!\n");
+		}
+	} else {
+		if (is_ovp_status == true) {
+			is_ovp_status = false;
+			if (chip->pdata->ovp_cb)
+				ret = chip->pdata->ovp_cb(false);
+			dev_info(&chip->client->dev,
+				"$s ovp status released!!\n");
+		}
+	}
+#else
+	if (chip->pdata->topoff_cb)
+		ret = chip->pdata->topoff_cb();
+
+	if (ret) {
+		dev_err(&chip->client->dev,
+			"%s: error from topoff_cb(%d)\n",
+			__func__, ret);
+		return IRQ_HANDLED;
+	}
+#endif
+	return IRQ_HANDLED;
+}
+
+static int smb328_irq_init(struct smb328_chip *chip)
+{
+	struct i2c_client *client = chip->client;
+	int ret;
+
+	if (client->irq) {
+		ret = request_threaded_irq(client->irq, NULL,
+			smb328_irq_thread,
+#if defined(CONFIG_MACH_Q1_CHN) && defined(CONFIG_SMB328_CHARGER)
+			IRQ_TYPE_EDGE_BOTH,
+#else
+			IRQF_TRIGGER_RISING | IRQF_ONESHOT,
+#endif
+			"SMB328 charger", chip);
+		if (ret) {
+			dev_err(&client->dev, "failed to reqeust IRQ\n");
+			return ret;
+		}
+
+		ret = enable_irq_wake(client->irq);
+		if (ret < 0)
+			dev_err(&client->dev,
+				"failed to enable wakeup src %d\n", ret);
+	}
+
+	return 0;
+}
+
+static int smb328_probe(struct i2c_client *client,
+	const struct i2c_device_id *id)
+{
+	struct i2c_adapter *adapter = to_i2c_adapter(client->dev.parent);
+	struct smb328_chip *chip;
+	int ret = 0;
+	int gpio = 0;
+	u8 data;
+	int i;
+
+	i = 10;
+	while (1) {
+		if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BYTE))
+			goto I2CERROR;
+
+		if (smb328_i2c_read(client, 0x36, &data) >= 0)	/* check HW */
+			break;
+
+I2CERROR:
+		if (!i--)
+			return -EIO;
+		msleep(300);
+	}
+
+	dev_info(&client->dev,
+		"%s : SMB328 Charger Driver Loading\n", __func__);
+
+	chip = kzalloc(sizeof(struct smb328_chip), GFP_KERNEL);
+	if (!chip)
+		return -ENOMEM;
+
+	chip->client = client;
+	chip->pdata = client->dev.platform_data;
+
+	i2c_set_clientdata(client, chip);
+
+	if (!chip->pdata) {
+		dev_err(&client->dev,
+			"%s : No platform data supplied\n", __func__);
+		ret = -EINVAL;
+		goto err_pdata;
+	}
+
+	if (chip->pdata->set_charger_name)
+		chip->pdata->set_charger_name();
+
+	chip->is_otg = false;
+	chip->is_enable = false;
+	chip->cable_type = CABLE_TYPE_NONE;
+
+	chip->charger.name		= "smb328-charger";
+	chip->charger.type		= POWER_SUPPLY_TYPE_BATTERY;
+	chip->charger.get_property	= smb328_get_property;
+	chip->charger.set_property	= smb328_set_property;
+	chip->charger.properties	= smb328_charger_props;
+	chip->charger.num_properties	= ARRAY_SIZE(smb328_charger_props);
+
+	ret = power_supply_register(&client->dev, &chip->charger);
+	if (ret) {
+		dev_err(&client->dev, "failed: power supply register\n");
+		kfree(chip);
+		return ret;
+	}
+
+	/* CHG_EN pin control - active low */
+	if (chip->pdata->gpio_chg_en) {
+		s3c_gpio_cfgpin(chip->pdata->gpio_chg_en, S3C_GPIO_OUTPUT);
+		s3c_gpio_setpull(chip->pdata->gpio_chg_en, S3C_GPIO_PULL_NONE);
+
+		gpio = gpio_request(chip->pdata->gpio_chg_en, "CHG_EN");
+		if (!gpio) {
+			gpio_direction_output(chip->pdata->gpio_chg_en,
+				GPIO_LEVEL_HIGH);
+			gpio_free(chip->pdata->gpio_chg_en);
+		} else
+			dev_err(&client->dev,
+			"faile to request gpio(CHG_EN)\n");
+	}
+
+	if (chip->pdata->gpio_otg_en) {
+		s3c_gpio_cfgpin(chip->pdata->gpio_otg_en, S3C_GPIO_OUTPUT);
+		s3c_gpio_setpull(chip->pdata->gpio_otg_en, S3C_GPIO_PULL_NONE);
+
+		gpio = gpio_request(chip->pdata->gpio_otg_en, "OTG_EN");
+		if (!gpio) {
+			gpio_direction_output(chip->pdata->gpio_otg_en,
+				GPIO_LEVEL_LOW);
+			gpio_free(chip->pdata->gpio_otg_en);
+		} else
+			dev_err(&client->dev,
+			"faile to request gpio(OTG_EN)\n");
+	}
+
+	if (chip->pdata->gpio_ta_nconnected) {
+		s3c_gpio_cfgpin(chip->pdata->gpio_ta_nconnected,
+			S3C_GPIO_INPUT);
+		s3c_gpio_setpull(chip->pdata->gpio_ta_nconnected,
+			S3C_GPIO_PULL_NONE);
+	}
+
+	if (chip->pdata->gpio_chg_ing) {
+#if defined(CONFIG_MACH_Q1_CHN)
+#if defined(CONFIG_MACH_Q1_CHN) && defined(CONFIG_SMB328_CHARGER)
+		/*  set external interrupt */
+		s3c_gpio_cfgpin(chip->pdata->gpio_chg_ing,
+			S3C_GPIO_SFN(0xf));
+#endif
+		client->irq = gpio_to_irq(chip->pdata->gpio_chg_ing);
+		ret = smb328_irq_init(chip);
+		if (ret)
+			goto err_pdata;
+#else
+		s3c_gpio_cfgpin(chip->pdata->gpio_chg_ing,
+			S3C_GPIO_INPUT);
+		s3c_gpio_setpull(chip->pdata->gpio_chg_ing,
+			S3C_GPIO_PULL_NONE);
+#endif
+	}
+
+#if defined(CONFIG_MACH_Q1_CHN) && defined(CONFIG_SMB328_CHARGER)
+	is_ovp_status = false;
+#endif
+
+	smb328_test_read(client);
+
+	return 0;
+
+err_pdata:
+	kfree(chip);
+	return ret;
+}
+
+static int __devexit smb328_remove(struct i2c_client *client)
+{
+	struct smb328_chip *chip = i2c_get_clientdata(client);
+
+	kfree(chip);
+	return 0;
+}
+
+static const struct i2c_device_id smb328_id[] = {
+	{"smb328-charger", 0},
+	{}
+};
+
+MODULE_DEVICE_TABLE(i2c, smb328_id);
+
+static struct i2c_driver smb328_i2c_driver = {
+	.driver = {
+		.owner	= THIS_MODULE,
+		.name	= "smb328-charger",
+	},
+	.probe	= smb328_probe,
+	.remove	= __devexit_p(smb328_remove),
+	.command = NULL,
+	.id_table	= smb328_id,
+};
+
+static int __init smb328_init(void)
+{
+	return i2c_add_driver(&smb328_i2c_driver);
+}
+
+static void __exit smb328_exit(void)
+{
+	i2c_del_driver(&smb328_i2c_driver);
+}
+
+module_init(smb328_init);
+module_exit(smb328_exit);
+
+MODULE_AUTHOR("Ikkeun Kim <iks.kim@samsung.com>");
+MODULE_DESCRIPTION("smb328 charger driver");
+MODULE_LICENSE("GPL");
diff --git a/drivers/power/smb347_charger.c b/drivers/power/smb347_charger.c
new file mode 100755
index 0000000..a339776
--- /dev/null
+++ b/drivers/power/smb347_charger.c
@@ -0,0 +1,497 @@
+/*
+ *  smb347_charger.c
+ *
+ *  Copyright (C) 2011 Samsung Electronics
+ *  SangYoung Son <hello.son@samsung.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 and
+ * only version 2 as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ */
+
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/platform_device.h>
+#include <linux/err.h>
+#include <linux/i2c.h>
+#include <linux/delay.h>
+#include <linux/power_supply.h>
+#include <linux/power/sec_battery_px.h>
+#include <linux/power/smb347_charger.h>
+#include <linux/mfd/max8997.h>
+#include <linux/gpio.h>
+#include <linux/irq.h>
+#include <linux/interrupt.h>
+#include <linux/slab.h>
+#include <plat/gpio-cfg.h>
+
+/* Slave address */
+#define SMB347_SLAVE_ADDR		0x0C
+
+/* SMB347 Registers. */
+#define SMB347_CHARGE_CURRENT		0X00
+#define SMB347_INPUT_CURRENTLIMIT	0X01
+#define SMB347_VARIOUS_FUNCTIONS	0X02
+#define SMB347_FLOAT_VOLTAGE		0X03
+#define SMB347_CHARGE_CONTROL		0X04
+#define SMB347_STAT_TIMERS_CONTROL	0x05
+#define SMB347_PIN_ENABLE_CONTROL	0x06
+#define SMB347_THERM_CONTROL_A		0x07
+#define SMB347_SYSOK_USB30_SELECTION	0x08
+#define SMB347_OTHER_CONTROL_A	0x09
+#define SMB347_OTG_TLIM_THERM_CONTROL	0x0A
+#define SMB347_LIMIT_CELL_TEMPERATURE_MONITOR	0x0B
+#define SMB347_FAULT_INTERRUPT	0x0C
+#define SMB347_STATUS_INTERRUPT	0x0D
+#define SMB347_I2C_BUS_SLAVE_ADDR	0x0E
+
+#define SMB347_COMMAND_A	0x30
+#define SMB347_COMMAND_B	0x31
+#define SMB347_COMMAND_C	0x33
+#define SMB347_INTERRUPT_STATUS_A	0x35
+#define SMB347_INTERRUPT_STATUS_B	0x36
+#define SMB347_INTERRUPT_STATUS_C	0x37
+#define SMB347_INTERRUPT_STATUS_D	0x38
+#define SMB347_INTERRUPT_STATUS_E	0x39
+#define SMB347_INTERRUPT_STATUS_F	0x3A
+#define SMB347_STATUS_A	0x3B
+#define SMB347_STATUS_B	0x3C
+#define SMB347_STATUS_C	0x3D
+#define SMB347_STATUS_D	0x3E
+#define SMB347_STATUS_E	0x3F
+
+/* Status register C */
+#define SMB347_CHARGING_ENABLE	(1 << 0)
+#define SMB347_CHARGING_STATUS	(1 << 5)
+#define SMB347_CHARGER_ERROR	(1 << 6)
+
+struct smb347_chg_data {
+	struct i2c_client *client;
+	struct smb_charger_data *pdata;
+	struct smb_charger_callbacks *callbacks;
+};
+
+static struct smb347_chg_data *smb347_chg;
+
+static bool smb347_check_powersource(struct smb347_chg_data *chg)
+{
+#if defined(CONFIG_MACH_P4NOTE)
+	/* p4 note pq has no problem for charger power */
+	return true;
+#endif
+
+	/* Power source needs for only P4C H/W rev0.2 */
+	if (system_rev != 2)
+		return true;
+
+	/* V_BUS detect by TA_nConnected */
+	if (!gpio_get_value(chg->pdata->ta_nconnected)) {
+		pr_err("smb347 power source is not detected\n");
+		return false;
+	}
+
+	return true;
+}
+
+static int smb347_i2c_read(struct i2c_client *client, u8 reg, u8 *data)
+{
+	struct smb347_chg_data *chg = smb347_chg;
+	int ret = 0;
+
+	/* Only for P4C rev0.2, Check vbus for opeartion charger */
+	if (!smb347_check_powersource(chg))
+		return -EINVAL;
+
+	if (!client) {
+		pr_err("smb347 i2c client error(addr : 0x%02x)\n", reg);
+		return -ENODEV;
+	}
+
+	ret = i2c_smbus_read_byte_data(client, reg);
+	if (ret < 0) {
+		pr_err("smb347 i2c read error(addr : 0x%02x)\n", reg);
+		return -EIO;
+	}
+
+	*data = ret & 0xff;
+	return 0;
+}
+
+static int smb347_i2c_write(struct i2c_client *client, u8 reg, u8 data)
+{
+	struct smb347_chg_data *chg = smb347_chg;
+	int ret = 0;
+
+	/* Only for P4C rev0.2, Check vbus for opeartion charger */
+	if (!smb347_check_powersource(chg))
+		return -EINVAL;
+
+	if (!client) {
+		pr_err("smb347 i2c client error(addr:0x%02x data:0x%02x)\n",
+			reg, data);
+		return -ENODEV;
+	}
+
+	ret = i2c_smbus_write_byte_data(client, reg, data);
+	if (ret < 0) {
+		pr_err("smb347 i2c write error(addr:0x%02x data:0x%02x)\n",
+			reg, data);
+		return -EIO;
+	}
+
+	udelay(10);
+	return ret;
+}
+
+static void smb347_test_read(void)
+{
+	struct smb347_chg_data *chg = smb347_chg;
+	u8 data = 0;
+	u32 addr = 0;
+	pr_info("%s\n", __func__);
+
+	/* Only for P4C rev0.2, Check vbus for opeartion charger */
+	if (!smb347_check_powersource(chg))
+		return;
+
+	for (addr = 0; addr <= 0x0E; addr++) {
+		smb347_i2c_read(chg->client, addr, &data);
+		pr_info("smb347 addr : 0x%02x data : 0x%02x\n", addr, data);
+	}
+
+	for (addr = 0x30; addr <= 0x3F; addr++) {
+		smb347_i2c_read(chg->client, addr, &data);
+		pr_info("smb347 addr : 0x%02x data : 0x%02x\n", addr, data);
+	}
+}
+
+static void smb347_enable_charging(struct smb347_chg_data *chg)
+{
+	pr_info("%s\n", __func__);
+	smb347_i2c_write(chg->client, SMB347_COMMAND_A, 0x82);
+}
+
+static void smb347_disable_charging(struct smb347_chg_data *chg)
+{
+	pr_info("%s\n", __func__);
+	smb347_i2c_write(chg->client, SMB347_COMMAND_A, 0x80);
+}
+
+static void smb347_charger_init(struct smb347_chg_data *chg)
+{
+	pr_info("%s\n", __func__);
+
+	/* Only for P4C rev0.2, Check vbus for opeartion charger */
+	if (!smb347_check_powersource(chg))
+		return;
+
+	/* Set GPIO_TA_EN as HIGH, charging disable */
+	smb347_disable_charging(chg);
+	mdelay(100);
+
+	/* Allow volatile writes to CONFIG registers */
+	smb347_i2c_write(chg->client, SMB347_COMMAND_A, 0x80);
+
+	/* Command B : USB1 mode, USB mode */
+	smb347_i2c_write(chg->client, SMB347_COMMAND_B, 0x00);
+
+	/* Charge curr : Fast-chg 2200mA */
+	/* Pre-charge curr 250mA, Term curr 250mA */
+	smb347_i2c_write(chg->client, SMB347_CHARGE_CURRENT, 0xDD);
+
+	/* Pin enable control : Charger enable control EN Pin - I2C */
+	/*  : USB5/1/HC or USB9/1.5/HC Control - Register Control */
+	/*  : USB5/1/HC Input state - Tri-state Input */
+	smb347_i2c_write(chg->client, SMB347_PIN_ENABLE_CONTROL, 0x00);
+
+	/* Input current limit : DCIN 1800mA, USBIN HC 1800mA */
+	smb347_i2c_write(chg->client, SMB347_INPUT_CURRENTLIMIT, 0x66);
+
+	/* Various func. : USBIN primary input, VCHG func. enable */
+	smb347_i2c_write(chg->client, SMB347_VARIOUS_FUNCTIONS, 0xA7);
+
+	/* Float voltage : 4.2V */
+	smb347_i2c_write(chg->client, SMB347_FLOAT_VOLTAGE, 0x63);
+
+	/* Charge control : Auto recharge disable, APSD disable */
+	smb347_i2c_write(chg->client, SMB347_CHARGE_CONTROL, 0x80);
+
+	/* STAT, Timer control : STAT active low, Complete time out 1527min. */
+	smb347_i2c_write(chg->client, SMB347_STAT_TIMERS_CONTROL, 0x1A);
+
+	/* Therm control : Therm monitor disable */
+	smb347_i2c_write(chg->client, SMB347_THERM_CONTROL_A, 0xBF);
+
+	/* Other control */
+	smb347_i2c_write(chg->client, SMB347_OTHER_CONTROL_A, 0x0D);
+
+	/* OTG tlim therm control */
+	smb347_i2c_write(chg->client, SMB347_OTG_TLIM_THERM_CONTROL, 0x3F);
+
+	/* Limit cell temperature */
+	smb347_i2c_write(chg->client, SMB347_LIMIT_CELL_TEMPERATURE_MONITOR,
+	0x01);
+
+	/* Fault interrupt : Clear */
+	smb347_i2c_write(chg->client, SMB347_FAULT_INTERRUPT, 0x00);
+
+	/* STATUS ingerrupt : Clear */
+	smb347_i2c_write(chg->client, SMB347_STATUS_INTERRUPT, 0x00);
+}
+
+static int smb347_get_charging_state(void)
+{
+	struct smb347_chg_data *chg = smb347_chg;
+	int status = POWER_SUPPLY_STATUS_UNKNOWN;
+	u8 data = 0;
+
+	smb347_i2c_read(chg->client, SMB347_STATUS_C, &data);
+	pr_info("%s : 0x%xh(0x%02x)\n", __func__, SMB347_STATUS_C, data);
+
+	if (data & SMB347_CHARGING_ENABLE)
+		status = POWER_SUPPLY_STATUS_CHARGING;
+	else {
+		/* if error bit check, ignore the status of charger-ic */
+		if (data & SMB347_CHARGER_ERROR)
+			status = POWER_SUPPLY_STATUS_DISCHARGING;
+		/* At least one charge cycle terminated */
+		/*Charge current < Termination Current */
+		else if (data & SMB347_CHARGING_STATUS)
+			status = POWER_SUPPLY_STATUS_FULL;
+	}
+
+	return status;
+}
+
+static int smb347_get_charger_is_full(void)
+{
+	struct smb347_chg_data *chg = smb347_chg;
+	int status = POWER_SUPPLY_STATUS_UNKNOWN;
+	u8 data = 0;
+
+	smb347_i2c_read(chg->client, SMB347_STATUS_C, &data);
+	pr_info("%s : 0x%xh(0x%02x)\n", __func__, SMB347_STATUS_C, data);
+
+	if (data & SMB347_CHARGER_ERROR)
+		status = POWER_SUPPLY_STATUS_DISCHARGING;
+	else if (data & SMB347_CHARGING_STATUS)
+		status = POWER_SUPPLY_STATUS_FULL;
+
+	return status;
+}
+
+static void smb347_set_charging_state(int enable, int charging_mode)
+{
+	struct smb347_chg_data *chg = smb347_chg;
+	pr_info("%s : enable(%d), charging_mode(%d)\n",
+		__func__, enable, charging_mode);
+
+	if (enable) {
+		/* Only for P4C rev0.2, Check vbus for opeartion charger */
+		if (!smb347_check_powersource(chg))
+			return;
+
+		/* Init smb347 charger */
+		smb347_charger_init(chg);
+
+		switch (charging_mode) {
+		case CABLE_TYPE_TA:
+			/* Input current limit : DCIN 1800mA, USBIN HC 1800mA */
+			smb347_i2c_write(chg->client,
+				SMB347_INPUT_CURRENTLIMIT, 0x66);
+
+			/* CommandB : High-current mode */
+			smb347_i2c_write(chg->client, SMB347_COMMAND_B, 0x03);
+
+			pr_info("%s : 1.8A charging enable\n", __func__);
+			break;
+		case CABLE_TYPE_DESKDOCK:
+			/* Input current limit : DCIN 1500mA, USBIN HC 1500mA */
+			smb347_i2c_write(chg->client,
+				SMB347_INPUT_CURRENTLIMIT, 0x55);
+
+			/* CommandB : High-current mode */
+			smb347_i2c_write(chg->client, SMB347_COMMAND_B, 0x03);
+			pr_info("%s : 1.5A charging enable\n", __func__);
+			break;
+		case CABLE_TYPE_USB:
+			/* CommandB : USB5 */
+			smb347_i2c_write(chg->client, SMB347_COMMAND_B, 0x02);
+			pr_info("%s : LOW(USB5) charging enable\n", __func__);
+			break;
+		default:
+			/* CommandB : USB1 */
+			smb347_i2c_write(chg->client, SMB347_COMMAND_B, 0x00);
+			pr_info("%s : LOW(USB1) charging enable\n", __func__);
+			break;
+		}
+
+		smb347_enable_charging(chg);
+	} else {
+		smb347_disable_charging(chg);
+	}
+
+	smb347_test_read();
+}
+
+int smb347_get_charging_current(void)
+{
+	struct smb347_chg_data *chg = smb347_chg;
+	u8 data = 0;
+	int get_current = 0;
+
+	smb347_i2c_read(chg->client, SMB347_CHARGE_CURRENT, &data);
+	switch (data >> 5) {
+	case 0:
+		get_current = 700;
+		break;
+	case 1:
+		get_current = 900;
+		break;
+	case 2:
+		get_current = 1200;
+		break;
+	case 3:
+		get_current = 1500;
+		break;
+	case 4:
+		get_current = 1800;
+		break;
+	case 5:
+		get_current = 2000;
+		break;
+	case 6:
+		get_current = 2200;
+		break;
+	case 7:
+		get_current = 2500;
+		break;
+	default:
+		get_current = 700;
+		break;
+	}
+	pr_debug("%s: Get charging current as %dmA.\n", __func__, get_current);
+	return get_current;
+}
+
+void smb347_set_charging_current(int set_current)
+{
+	struct smb347_chg_data *chg = smb347_chg;
+
+	if (set_current > 450) {
+		/* CommandB : High-current mode */
+		smb347_i2c_write(chg->client, SMB347_COMMAND_B, 0x03);
+		udelay(10);
+	} else {
+		/* CommandB : USB5 */
+		smb347_i2c_write(chg->client, SMB347_COMMAND_B, 0x02);
+		udelay(10);
+	}
+	pr_debug("%s: Set charging current as %dmA.\n", __func__, set_current);
+}
+
+static int smb347_i2c_probe
+(struct i2c_client *client, const struct i2c_device_id *id)
+{
+	struct i2c_adapter *adapter = to_i2c_adapter(client->dev.parent);
+	struct smb347_chg_data *chg;
+	int ret = 0;
+
+	if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BYTE))
+		return -EIO;
+
+	pr_info("%s : smb347 Charger Driver Loading\n", __func__);
+
+	chg = kzalloc(sizeof(struct smb347_chg_data), GFP_KERNEL);
+	if (!chg)
+		return -ENOMEM;
+
+	chg->callbacks = kzalloc(sizeof(struct smb_charger_callbacks),
+		GFP_KERNEL);
+	if (!chg->callbacks) {
+		kfree(chg);
+		return -ENOMEM;
+	}
+
+	chg->client = client;
+	chg->pdata = client->dev.platform_data;
+
+	i2c_set_clientdata(client, chg);
+	smb347_chg = chg;
+
+	if (!chg->pdata) {
+		pr_err("%s : No platform data supplied\n", __func__);
+		ret = -EINVAL;
+		goto err_pdata;
+	}
+
+	pr_info("register callback functions!\n");
+	chg->callbacks->set_charging_state = smb347_set_charging_state;
+	chg->callbacks->get_charging_state = smb347_get_charging_state;
+	chg->callbacks->set_charging_current = smb347_set_charging_current;
+	chg->callbacks->get_charging_current = smb347_get_charging_current;
+	chg->callbacks->get_charger_is_full = smb347_get_charger_is_full;
+	if (chg->pdata && chg->pdata->register_callbacks)
+		chg->pdata->register_callbacks(chg->callbacks);
+
+	pr_info("smb347 charger initialized.\n");
+
+	return 0;
+
+err_pdata:
+	kfree(chg->callbacks);
+	kfree(chg);
+	return ret;
+}
+
+static int __devexit smb347_remove(struct i2c_client *client)
+{
+	struct smb347_chg_data *chg = i2c_get_clientdata(client);
+
+	if (chg->pdata && chg->pdata->unregister_callbacks)
+		chg->pdata->unregister_callbacks();
+
+	kfree(chg);
+	return 0;
+}
+
+static const struct i2c_device_id smb347_id[] = {
+	{ "smb347-charger", 0 },
+};
+
+
+static struct i2c_driver smb347_i2c_driver = {
+	.driver = {
+		.owner	= THIS_MODULE,
+		.name	= "smb347-charger",
+	},
+	.probe		= smb347_i2c_probe,
+	.remove		= smb347_remove,
+	.id_table	= smb347_id,
+};
+
+
+MODULE_DEVICE_TABLE(i2c, smb347_id);
+
+static int __init smb347_init(void)
+{
+	return i2c_add_driver(&smb347_i2c_driver);
+}
+
+static void __exit smb347_exit(void)
+{
+	i2c_del_driver(&smb347_i2c_driver);
+}
+
+module_init(smb347_init);
+module_exit(smb347_exit);
+
+MODULE_AUTHOR("SangYoung Son <hello.son@samsung.com>");
+MODULE_DESCRIPTION("smb347 charger driver");
+MODULE_LICENSE("GPL");