diff options
Diffstat (limited to 'drivers/video/samsung_duallcd/s3cfb_s6e8aa0.c')
| -rw-r--r-- | drivers/video/samsung_duallcd/s3cfb_s6e8aa0.c | 1534 |
1 files changed, 1534 insertions, 0 deletions
diff --git a/drivers/video/samsung_duallcd/s3cfb_s6e8aa0.c b/drivers/video/samsung_duallcd/s3cfb_s6e8aa0.c new file mode 100644 index 0000000..987b215 --- /dev/null +++ b/drivers/video/samsung_duallcd/s3cfb_s6e8aa0.c @@ -0,0 +1,1534 @@ +/* linux/drivers/video/samsung/s3cfb_s6e8aa0.c + * + * MIPI-DSI based AMS529HA01 AMOLED lcd panel driver. + * + * 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/kernel.h> +#include <linux/errno.h> +#include <linux/mutex.h> +#include <linux/wait.h> +#include <linux/ctype.h> +#include <linux/io.h> +#include <linux/delay.h> +#include <linux/irq.h> +#include <linux/interrupt.h> +#include <linux/gpio.h> +#include <linux/workqueue.h> +#include <linux/backlight.h> +#include <linux/lcd.h> +#include <plat/gpio-cfg.h> +#include <plat/regs-dsim.h> +#include <mach/dsim.h> +#include <mach/mipi_ddi.h> +#ifdef CONFIG_HAS_EARLYSUSPEND +#include <linux/earlysuspend.h> +#endif + +#include "s5p-dsim.h" +#include "s3cfb.h" +#include "s6e8aa0_gamma_l.h" + +#if defined(CONFIG_S6E8AA0_AMS529HA01) +#include "s6e8aa0_gamma_q1.h" +#define SMART_DIMMING +#else +#include "s6e8aa0_gamma_c1m0.h" +#define SMART_DIMMING +#endif + +#ifdef SMART_DIMMING +#include "smart_dimming.h" +#ifdef CONFIG_AID_DIMMING +#include "aid_s6e8aa0.h" +#endif +#endif + +#define POWER_IS_ON(pwr) ((pwr) <= FB_BLANK_NORMAL) + +#define MIN_BRIGHTNESS 0 +#define MAX_BRIGHTNESS 255 +#if defined(CONFIG_S6E8AA0_AMS529HA01) +#define MAX_GAMMA 290 +#define DEFAULT_BRIGHTNESS 150 +#define DEFAULT_GAMMA_LEVEL GAMMA_150CD +#else +#define MAX_GAMMA 300 +#define DEFAULT_BRIGHTNESS 160 +#define DEFAULT_GAMMA_LEVEL GAMMA_160CD +#endif + +#define LDI_ID_REG 0xD1 +#define LDI_ID_LEN 3 + +#ifdef SMART_DIMMING +#define PANEL_A1_M3 0xA1 + +#define LDI_MTP_LENGTH 24 +#define LDI_MTP_ADDR 0xD3 + +#define DYNAMIC_ELVSS_MIN_VALUE 0x81 +#define DYNAMIC_ELVSS_MAX_VALUE 0x9F + +#define ELVSS_MODE0_MIN_VOLTAGE 62 +#define ELVSS_MODE1_MIN_VOLTAGE 52 + +struct str_elvss { + u8 reference; + u8 limit; +}; +#endif + +struct lcd_info { + unsigned int bl; + unsigned int auto_brightness; + unsigned int acl_enable; + unsigned int cur_acl; + unsigned int current_bl; + unsigned int current_elvss; + + unsigned int ldi_enable; + unsigned int power; + struct mutex lock; + struct mutex bl_lock; + + struct device *dev; + struct lcd_device *ld; + struct backlight_device *bd; + struct lcd_platform_data *lcd_pd; + struct early_suspend early_suspend; + + unsigned char id[LDI_ID_LEN]; + + unsigned char **gamma_table; + unsigned char **elvss_table; + +#ifdef SMART_DIMMING + unsigned int support_elvss; + + struct str_smart_dim smart; + struct str_elvss elvss; +#endif +#ifdef CONFIG_AID_DIMMING + unsigned int support_aid; + unsigned char f8[GAMMA_MAX][ARRAY_SIZE(SEQ_PANEL_CONDITION_SET_500MBPS)]; +#endif + unsigned int irq; + unsigned int connected; + +#if defined(GPIO_OLED_DET) + struct delayed_work oled_detection; + unsigned int oled_detection_count; +#endif + struct dsim_global *dsim; +}; + +#ifdef CONFIG_AID_DIMMING +static const unsigned int candela_table[GAMMA_MAX] = { + 20, 30, 40, 50, 60, 70, 80, 90, 100, + 110, 120, 130, 140, 150, 160, 170, 180, + 182, 184, 186, 188, + 190, 200, 210, 220, 230, 240, 250, MAX_GAMMA-1 +}; + +static unsigned int aid_candela_table[GAMMA_MAX] = { + base_20to100, base_20to100, base_20to100, base_20to100, base_20to100, base_20to100, base_20to100, base_20to100, base_20to100, + AOR40_BASE_110, AOR40_BASE_120, AOR40_BASE_130, AOR40_BASE_140, AOR40_BASE_150, + AOR40_BASE_160, AOR40_BASE_170, AOR40_BASE_180, AOR40_BASE_182, AOR40_BASE_184, + AOR40_BASE_186, AOR40_BASE_188, + 190, 200, 210, 220, 230, 240, 250, MAX_GAMMA-1 +}; + +static unsigned int elvss_offset_table[ELVSS_STATUS_MAX] = { + ELVSS_OFFSET_110, + ELVSS_OFFSET_120, + ELVSS_OFFSET_130, + ELVSS_OFFSET_140, + ELVSS_OFFSET_150, + ELVSS_OFFSET_160, + ELVSS_OFFSET_170, + ELVSS_OFFSET_180, + ELVSS_OFFSET_190, + ELVSS_OFFSET_200, + ELVSS_OFFSET_210, + ELVSS_OFFSET_220, + ELVSS_OFFSET_230, + ELVSS_OFFSET_240, + ELVSS_OFFSET_250, + ELVSS_OFFSET_260, + ELVSS_OFFSET_270, + ELVSS_OFFSET_280, + ELVSS_OFFSET_290, + ELVSS_OFFSET_300 +}; +#else +static const unsigned int candela_table[GAMMA_MAX] = { + 30, 40, 50, 60, 70, 80, 90, 100, 110, 120, + 130, 140, 150, 160, 170, 180, 190, 200, 210, 220, + 230, 240, 250, MAX_GAMMA +}; + +static unsigned int elvss_offset_table[ELVSS_STATUS_MAX] = { + ELVSS_OFFSET_MIN, + ELVSS_OFFSET_1, + ELVSS_OFFSET_2, + ELVSS_OFFSET_MAX +}; +#endif + +#if defined(GPIO_OLED_DET) +static void oled_detection_work(struct work_struct *work) +{ + struct lcd_info *lcd = + container_of(work, struct lcd_info, oled_detection.work); + + int oled_det_level = gpio_get_value(GPIO_OLED_DET); + + dev_info(&lcd->ld->dev, "%s, %d, %d\n", __func__, lcd->oled_detection_count, oled_det_level); + + if (!oled_det_level) { + if (lcd->oled_detection_count < 10) { + schedule_delayed_work(&lcd->oled_detection, HZ/8); + lcd->oled_detection_count++; + set_dsim_hs_clk_toggle_count(15); + } else + set_dsim_hs_clk_toggle_count(0); + } else + set_dsim_hs_clk_toggle_count(0); + +} + +static irqreturn_t oled_detection_int(int irq, void *_lcd) +{ + struct lcd_info *lcd = _lcd; + + dev_info(&lcd->ld->dev, "%s\n", __func__); + + lcd->oled_detection_count = 0; + schedule_delayed_work(&lcd->oled_detection, HZ/16); + + return IRQ_HANDLED; +} +#endif + +static int s6e8ax0_write(struct lcd_info *lcd, const unsigned char *seq, int len) +{ + int size; + const unsigned char *wbuf; + + if (!lcd->connected) + return 0; + + mutex_lock(&lcd->lock); + + size = len; + wbuf = seq; + + if (size == 1) + lcd->dsim->ops->cmd_write(lcd->dsim, DCS_WR_NO_PARA, wbuf[0], 0); + else if (size == 2) + lcd->dsim->ops->cmd_write(lcd->dsim, DCS_WR_1_PARA, wbuf[0], wbuf[1]); + else + lcd->dsim->ops->cmd_write(lcd->dsim, DCS_LONG_WR, (unsigned int)wbuf, size); + + mutex_unlock(&lcd->lock); + + return 0; +} + +static int _s6e8ax0_read(struct lcd_info *lcd, const u8 addr, u16 count, u8 *buf) +{ + int ret = 0; + + if (!lcd->connected) + return ret; + + mutex_lock(&lcd->lock); + + if (lcd->dsim->ops->cmd_read) + ret = lcd->dsim->ops->cmd_read(lcd->dsim, addr, count, buf); + + mutex_unlock(&lcd->lock); + + return ret; +} + +static int s6e8ax0_read(struct lcd_info *lcd, const u8 addr, u16 count, u8 *buf, u8 retry_cnt) +{ + int ret = 0; + +read_retry: + ret = _s6e8ax0_read(lcd, addr, count, buf); + if (!ret) { + if (retry_cnt) { + printk(KERN_WARNING "[WARN:LCD] %s : retry cnt : %d\n", __func__, retry_cnt); + retry_cnt--; + goto read_retry; + } else + printk(KERN_ERR "[ERROR:LCD] %s : 0x%02x read failed\n", __func__, addr); + } + + return ret; +} + +#ifdef CONFIG_AID_DIMMING +static int get_backlight_level_from_brightness(int brightness) +{ + int backlightlevel; + + /* brightness setting from platform is from 0 to 255 + * But in this driver, brightness is only supported from 0 to 24 */ + + switch (brightness) { + case 0 ... 29: + backlightlevel = GAMMA_20CD; + break; + case 30 ... 39: + backlightlevel = GAMMA_30CD; + break; + case 40 ... 49: + backlightlevel = GAMMA_40CD; + break; + case 50 ... 59: + backlightlevel = GAMMA_50CD; + break; + case 60 ... 69: + backlightlevel = GAMMA_60CD; + break; + case 70 ... 79: + backlightlevel = GAMMA_70CD; + break; + case 80 ... 89: + backlightlevel = GAMMA_80CD; + break; + case 90 ... 99: + backlightlevel = GAMMA_90CD; + break; + case 100 ... 109: + backlightlevel = GAMMA_100CD; + break; + case 110 ... 119: + backlightlevel = GAMMA_110CD; + break; + case 120 ... 129: + backlightlevel = GAMMA_120CD; + break; + case 130 ... 139: + backlightlevel = GAMMA_130CD; + break; + case 140 ... 149: + backlightlevel = GAMMA_140CD; + break; + case 150 ... 159: + backlightlevel = GAMMA_150CD; + break; + case 160 ... 169: + backlightlevel = GAMMA_160CD; + break; + case 170 ... 179: + backlightlevel = GAMMA_170CD; + break; + case 180 ... 181: + backlightlevel = GAMMA_180CD; + break; + case 182 ... 183: + backlightlevel = GAMMA_182CD; + break; + case 184 ... 185: + backlightlevel = GAMMA_184CD; + break; + case 186 ... 187: + backlightlevel = GAMMA_186CD; + break; + case 188 ... 189: + backlightlevel = GAMMA_188CD; + break; + case 190 ... 199: + backlightlevel = GAMMA_190CD; + break; + case 200 ... 209: + backlightlevel = GAMMA_200CD; + break; + case 210 ... 219: + backlightlevel = GAMMA_210CD; + break; + case 220 ... 229: + backlightlevel = GAMMA_220CD; + break; + case 230 ... 239: + backlightlevel = GAMMA_230CD; + break; + case 240 ... 249: + backlightlevel = GAMMA_240CD; + break; + case 250 ... 254: + backlightlevel = GAMMA_250CD; + break; + case 255: + backlightlevel = GAMMA_300CD; + break; + default: + backlightlevel = DEFAULT_GAMMA_LEVEL; + break; + } + return backlightlevel; +} + +static int s6e8ax0_aid_parameter_ctl(struct lcd_info *lcd , u8 force) +{ + if (likely(lcd->support_aid)) { + if ((lcd->f8[lcd->bl][0x12] != lcd->f8[lcd->current_bl][0x12]) || + (lcd->f8[lcd->bl][0x01] != lcd->f8[lcd->current_bl][0x01]) || (force)) + s6e8ax0_write(lcd, lcd->f8[lcd->bl], AID_PARAM_SIZE); + } + + return 0; +} +#else +static int get_backlight_level_from_brightness(int brightness) +{ + int backlightlevel; + + /* brightness setting from platform is from 0 to 255 + * But in this driver, brightness is only supported from 0 to 24 */ + + switch (brightness) { + case 0 ... 29: + backlightlevel = GAMMA_30CD; + break; + case 30 ... 254: + backlightlevel = (brightness - candela_table[0]) / 10; + break; + case 255: + backlightlevel = ARRAY_SIZE(candela_table) - 1; + break; + default: + backlightlevel = DEFAULT_GAMMA_LEVEL; + break; + } + return backlightlevel; +} +#endif + +static int s6e8ax0_gamma_ctl(struct lcd_info *lcd) +{ + s6e8ax0_write(lcd, lcd->gamma_table[lcd->bl], GAMMA_PARAM_SIZE); + + /* Gamma Set Update */ + s6e8ax0_write(lcd, SEQ_GAMMA_UPDATE, ARRAY_SIZE(SEQ_GAMMA_UPDATE)); + + return 0; +} + +#if defined(CONFIG_S6E8AA0_AMS529HA01) +static int s6e8ax0_set_acl(struct lcd_info *lcd) +{ + int ret = 0; + + if (lcd->acl_enable) { + if (lcd->cur_acl == 0) { + if (lcd->bl == 0 || lcd->bl == 1) { + s6e8ax0_write(lcd, SEQ_ACL_OFF, ARRAY_SIZE(SEQ_ACL_OFF)); + dev_dbg(&lcd->ld->dev, "%s : cur_acl=%d, acl_off\n", __func__, lcd->cur_acl); + } else { + s6e8ax0_write(lcd, SEQ_ACL_ON, ARRAY_SIZE(SEQ_ACL_ON)); + dev_dbg(&lcd->ld->dev, "%s : cur_acl=%d, acl_on\n", __func__, lcd->cur_acl); + } + } + switch (lcd->bl) { + case GAMMA_30CD... GAMMA_40CD: + if (lcd->cur_acl != 0) { + s6e8ax0_write(lcd, SEQ_ACL_OFF, ARRAY_SIZE(SEQ_ACL_OFF)); + lcd->cur_acl = 0; + dev_dbg(&lcd->ld->dev, "%s : cur_acl=%d\n", __func__, lcd->cur_acl); + } + break; + case GAMMA_50CD: + if (lcd->cur_acl != 200) { + s6e8ax0_write(lcd, ACL_CUTOFF_TABLE[ACL_STATUS_20P], ACL_PARAM_SIZE); + lcd->cur_acl = 200; + dev_dbg(&lcd->ld->dev, "%s : cur_acl=%d\n", __func__, lcd->cur_acl); + } + break; + case GAMMA_60CD: + if (lcd->cur_acl != 330) { + s6e8ax0_write(lcd, ACL_CUTOFF_TABLE[ACL_STATUS_33P], ACL_PARAM_SIZE); + lcd->cur_acl = 330; + dev_dbg(&lcd->ld->dev, "%s : cur_acl=%d\n", __func__, lcd->cur_acl); + } + break; + case GAMMA_70CD: + if (lcd->cur_acl != 430) { + s6e8ax0_write(lcd, ACL_CUTOFF_TABLE[ACL_STATUS_43P], ACL_PARAM_SIZE); + lcd->cur_acl = 430; + dev_dbg(&lcd->ld->dev, "%s : cur_acl=%d\n", __func__, lcd->cur_acl); + } + break; + case GAMMA_80CD: + if (lcd->cur_acl != 450) { + s6e8ax0_write(lcd, ACL_CUTOFF_TABLE[ACL_STATUS_45P_80CD], ACL_PARAM_SIZE); + lcd->cur_acl = 450; + dev_dbg(&lcd->ld->dev, "%s : cur_acl=%d\n", __func__, lcd->cur_acl); + } + break; + case GAMMA_90CD ... GAMMA_150CD: + if (lcd->cur_acl != 451) { + s6e8ax0_write(lcd, ACL_CUTOFF_TABLE[ACL_STATUS_45P], ACL_PARAM_SIZE); + lcd->cur_acl = 451; + dev_dbg(&lcd->ld->dev, "%s : cur_acl=%d\n", __func__, lcd->cur_acl); + } + break; + case GAMMA_160CD: /* 160cd */ + if (lcd->cur_acl != 460) { + s6e8ax0_write(lcd, ACL_CUTOFF_TABLE[ACL_STATUS_46P_160CD], ACL_PARAM_SIZE); + lcd->cur_acl = 460; + dev_dbg(&lcd->ld->dev, "%s : cur_acl=%d\n", __func__, lcd->cur_acl); + } + break; + case GAMMA_170CD ... GAMMA_250CD: + if (lcd->cur_acl != 461) { + s6e8ax0_write(lcd, ACL_CUTOFF_TABLE[ACL_STATUS_46P], ACL_PARAM_SIZE); + lcd->cur_acl = 461; + dev_dbg(&lcd->ld->dev, "%s : cur_acl=%d\n", __func__, lcd->cur_acl); + } + break; + default: + if (lcd->cur_acl != 550) { + s6e8ax0_write(lcd, ACL_CUTOFF_TABLE[ACL_STATUS_50P], ACL_PARAM_SIZE); + lcd->cur_acl = 550; + dev_dbg(&lcd->ld->dev, "%s : cur_acl=%d\n", __func__, lcd->cur_acl); + } + break; + } + } else { + s6e8ax0_write(lcd, SEQ_ACL_OFF, ARRAY_SIZE(SEQ_ACL_OFF)); + lcd->cur_acl = 0; + dev_dbg(&lcd->ld->dev, "%s : cur_acl=%d, acl_off\n", __func__, lcd->cur_acl); + } + + if (ret) { + ret = -EPERM; + goto acl_err; + } + +acl_err: + return ret; +} +#else +static int s6e8ax0_set_acl(struct lcd_info *lcd) +{ + if (lcd->acl_enable) { + if (lcd->cur_acl == 0) { + if (lcd->bl == 0) { + s6e8ax0_write(lcd, SEQ_ACL_OFF, ARRAY_SIZE(SEQ_ACL_OFF)); + dev_dbg(&lcd->ld->dev, "%s : cur_acl=%d, acl_off\n", __func__, lcd->cur_acl); + } else { + s6e8ax0_write(lcd, SEQ_ACL_ON, ARRAY_SIZE(SEQ_ACL_ON)); + dev_dbg(&lcd->ld->dev, "%s : cur_acl=%d, acl_on\n", __func__, lcd->cur_acl); + } + } + switch (lcd->bl) { + case 0: + if (lcd->cur_acl != 0) { + s6e8ax0_write(lcd, SEQ_ACL_OFF, ARRAY_SIZE(SEQ_ACL_OFF)); + lcd->cur_acl = 0; + dev_dbg(&lcd->ld->dev, "%s : cur_acl=%d\n", __func__, lcd->cur_acl); + } + break; + case 1: + if (lcd->cur_acl != 33) { + s6e8ax0_write(lcd, ACL_CUTOFF_TABLE[ACL_STATUS_33P], ACL_PARAM_SIZE); + lcd->cur_acl = 33; + dev_dbg(&lcd->ld->dev, "%s : cur_acl=%d\n", __func__, lcd->cur_acl); + } + break; + case 2 ... GAMMA_250CD: + if (lcd->cur_acl != 40) { + s6e8ax0_write(lcd, ACL_CUTOFF_TABLE[ACL_STATUS_40P], ACL_PARAM_SIZE); + lcd->cur_acl = 40; + dev_dbg(&lcd->ld->dev, "%s : cur_acl=%d\n", __func__, lcd->cur_acl); + } + break; + default: + if (lcd->cur_acl != 50) { + s6e8ax0_write(lcd, ACL_CUTOFF_TABLE[ACL_STATUS_50P], ACL_PARAM_SIZE); + lcd->cur_acl = 50; + dev_dbg(&lcd->ld->dev, "%s : cur_acl=%d\n", __func__, lcd->cur_acl); + } + break; + } + } else { + s6e8ax0_write(lcd, SEQ_ACL_OFF, ARRAY_SIZE(SEQ_ACL_OFF)); + lcd->cur_acl = 0; + dev_dbg(&lcd->ld->dev, "%s : cur_acl=%d, acl_off\n", __func__, lcd->cur_acl); + } + + return 0; +} +#endif + +#ifdef SMART_DIMMING +#ifdef CONFIG_AID_DIMMING +static int s6e8ax0_set_elvss(struct lcd_info *lcd, u8 force) +{ + int ret = 0, elvss_level = 0; + u32 candela = candela_table[lcd->bl]; + + switch (candela) { + case 0 ... 110: + elvss_level = ELVSS_110; + break; + case 111 ... 120: + elvss_level = ELVSS_120; + break; + case 121 ... 130: + elvss_level = ELVSS_130; + break; + case 131 ... 140: + elvss_level = ELVSS_140; + break; + case 141 ... 150: + elvss_level = ELVSS_150; + break; + case 151 ... 160: + elvss_level = ELVSS_160; + break; + case 161 ... 170: + elvss_level = ELVSS_170; + break; + case 171 ... 180: + elvss_level = ELVSS_180; + break; + case 181 ... 190: + elvss_level = ELVSS_190; + break; + case 191 ... 200: + elvss_level = ELVSS_200; + break; + case 201 ... 210: + elvss_level = ELVSS_210; + break; + case 211 ... 220: + elvss_level = ELVSS_220; + break; + case 221 ... 230: + elvss_level = ELVSS_230; + break; + case 231 ... 240: + elvss_level = ELVSS_240; + break; + case 241 ... 250: + elvss_level = ELVSS_250; + break; + case 251 ... 260: + elvss_level = ELVSS_260; + break; + case 261 ... 270: + elvss_level = ELVSS_270; + break; + case 271 ... 280: + elvss_level = ELVSS_280; + break; + case 281 ... 290: + elvss_level = ELVSS_290; + break; + case 291 ... 300: + elvss_level = ELVSS_300; + break; + } + + if ((lcd->current_elvss != lcd->elvss_table[elvss_level][2]) || force) { + ret = s6e8ax0_write(lcd, lcd->elvss_table[elvss_level], ELVSS_PARAM_SIZE); + lcd->current_elvss = lcd->elvss_table[elvss_level][2]; + } + + dev_dbg(&lcd->ld->dev, "elvss = %x\n", lcd->elvss_table[elvss_level][2]); + + if (ret) { + ret = -EPERM; + goto elvss_err; + } + +elvss_err: + return ret; +} +#else +static int s6e8ax0_set_elvss(struct lcd_info *lcd, u8 force) +{ + int ret = 0, elvss_level = 0; + u32 candela = candela_table[lcd->bl]; + + switch (candela) { + case 0 ... 100: + elvss_level = ELVSS_MIN; + break; + case 101 ... 160: + elvss_level = ELVSS_1; + break; + case 161 ... 200: + elvss_level = ELVSS_2; + break; + case 201 ... 300: + elvss_level = ELVSS_MAX; + break; + default: + break; + } + + if ((lcd->current_elvss != lcd->elvss_table[elvss_level][2]) || force) { + ret = s6e8ax0_write(lcd, lcd->elvss_table[elvss_level], ELVSS_PARAM_SIZE); + lcd->current_elvss = lcd->elvss_table[elvss_level][2]; + } + + dev_dbg(&lcd->ld->dev, "elvss = %x\n", lcd->elvss_table[elvss_level][2]); + + if (ret) { + ret = -EPERM; + goto elvss_err; + } + +elvss_err: + return ret; +} +#endif +static u8 get_elvss_value(struct lcd_info *lcd, u8 elvss_level) +{ + u8 ref = 0; + u8 offset; + + if (lcd->elvss.limit == 0x00) + ref = (lcd->elvss.reference | 0x80); + else if (lcd->elvss.limit == 0x01) + ref = (lcd->elvss.reference + 0x40); + else { + printk(KERN_ERR "[ERROR:ELVSS]:%s undefined elvss limit value :%x\n", __func__, lcd->elvss.limit); + return 0; + } + + offset = elvss_offset_table[elvss_level]; + ref += offset; + + if (ref < DYNAMIC_ELVSS_MIN_VALUE) + ref = DYNAMIC_ELVSS_MIN_VALUE; + else if (ref > DYNAMIC_ELVSS_MAX_VALUE) + ref = DYNAMIC_ELVSS_MAX_VALUE; + + return ref; +} + +static int init_elvss_table(struct lcd_info *lcd) +{ + int i, ret = 0; +#ifdef SMART_DIMMING_DEBUG + int j; +#endif + + lcd->elvss_table = kzalloc(ELVSS_STATUS_MAX * sizeof(u8 *), GFP_KERNEL); + + if (IS_ERR_OR_NULL(lcd->elvss_table)) { + pr_err("failed to allocate elvss table\n"); + ret = -ENOMEM; + goto err_alloc_elvss_table; + } + + for (i = 0; i < ELVSS_STATUS_MAX; i++) { + lcd->elvss_table[i] = kzalloc(ELVSS_PARAM_SIZE * sizeof(u8), GFP_KERNEL); + if (IS_ERR_OR_NULL(lcd->elvss_table[i])) { + pr_err("failed to allocate elvss\n"); + ret = -ENOMEM; + goto err_alloc_elvss; + } + lcd->elvss_table[i][0] = 0xB1; + lcd->elvss_table[i][1] = 0x04; + lcd->elvss_table[i][2] = get_elvss_value(lcd, i); + } + +#ifdef SMART_DIMMING_DEBUG + for (i = 0; i < ELVSS_STATUS_MAX; i++) { + for (j = 0; j < ELVSS_PARAM_SIZE; j++) + printk("0x%02x, ", lcd->elvss_table[i][j]); + printk("\n"); + } +#endif + + return 0; + +err_alloc_elvss: + while (i > 0) { + kfree(lcd->elvss_table[i-1]); + i--; + } + kfree(lcd->elvss_table); +err_alloc_elvss_table: + return ret; +} + +#ifdef CONFIG_AID_DIMMING +static int init_gamma_table(struct lcd_info *lcd) +{ + int i, ret = 0; + + lcd->gamma_table = kzalloc(GAMMA_MAX * sizeof(u8 *), GFP_KERNEL); + if (IS_ERR_OR_NULL(lcd->gamma_table)) { + pr_err("failed to allocate gamma table\n"); + ret = -ENOMEM; + goto err_alloc_gamma_table; + } + + for (i = 0; i < GAMMA_MAX; i++) { + lcd->gamma_table[i] = kzalloc(GAMMA_PARAM_SIZE * sizeof(u8), GFP_KERNEL); + if (IS_ERR_OR_NULL(lcd->gamma_table[i])) { + pr_err("failed to allocate gamma\n"); + ret = -ENOMEM; + goto err_alloc_gamma; + } + lcd->gamma_table[i][0] = 0xFA; + lcd->gamma_table[i][1] = 0x01; + } + + for (i = 0; i < GAMMA_MAX; i++) { + if (candela_table[i] <= 180) + calc_gamma_table(&lcd->smart, aid_candela_table[i], &lcd->gamma_table[i][2], G_21); + else if (candela_table[i] > 250) + calc_gamma_table(&lcd->smart, aid_candela_table[i], &lcd->gamma_table[i][2], G_22); + else if (candela_table[i] == 190) + calc_gamma_table_215_190(&lcd->smart, aid_candela_table[i], &lcd->gamma_table[i][2]); + else + calc_gamma_table(&lcd->smart, aid_candela_table[i], &lcd->gamma_table[i][2], G_215); + } + +#ifdef SMART_DIMMING_DEBUG + for (i = 0; i < GAMMA_MAX; i++) { + for (j = 0; j < GAMMA_PARAM_SIZE; j++) + printk("%d, ", lcd->gamma_table[i][j]); + printk("\n"); + } +#endif + return 0; + +err_alloc_gamma: + while (i > 0) { + kfree(lcd->gamma_table[i-1]); + i--; + } + kfree(lcd->gamma_table); +err_alloc_gamma_table: + return ret; +} + +static int init_aid_dimming_table(struct lcd_info *lcd) +{ + unsigned int i, j; + + for (i = 0; i < ARRAY_SIZE(aid_rgb_fix_table); i++) { + j = (aid_rgb_fix_table[i].gray * 3 + aid_rgb_fix_table[i].rgb) + 2; + lcd->gamma_table[aid_rgb_fix_table[i].candela_idx][j] += aid_rgb_fix_table[i].offset; + } + + for (i = 0; i < GAMMA_MAX; i++) { + memcpy(lcd->f8[i], SEQ_PANEL_CONDITION_SET_500MBPS, AID_PARAM_SIZE); + lcd->f8[i][0x12] = aid_command_table[i][0]; + lcd->f8[i][0x01] = aid_command_table[i][1]; + } + + +#ifdef SMART_DIMMING_DEBUG + for (i = 0; i < GAMMA_MAX; i++) { + for (j = 0; j < GAMMA_PARAM_SIZE; j++) + printk("%d, ", lcd->gamma_table[i][j]); + printk("\n"); + } +#endif + return 0; +} +#else +static int init_gamma_table(struct lcd_info *lcd) +{ + int i, ret = 0; + + lcd->gamma_table = kzalloc(GAMMA_MAX * sizeof(u8 *), GFP_KERNEL); + if (IS_ERR_OR_NULL(lcd->gamma_table)) { + pr_err("failed to allocate gamma table\n"); + ret = -ENOMEM; + goto err_alloc_gamma_table; + } + + for (i = 0; i < GAMMA_MAX; i++) { + lcd->gamma_table[i] = kzalloc(GAMMA_PARAM_SIZE * sizeof(u8), GFP_KERNEL); + if (IS_ERR_OR_NULL(lcd->gamma_table[i])) { + pr_err("failed to allocate gamma\n"); + ret = -ENOMEM; + goto err_alloc_gamma; + } + lcd->gamma_table[i][0] = 0xFA; + lcd->gamma_table[i][1] = 0x01; + calc_gamma_table(&lcd->smart, candela_table[i]-1, lcd->gamma_table[i]+2); + } + +#ifdef SMART_DIMMING_DEBUG + for (i = 0; i < GAMMA_MAX; i++) { + for (j = 0; j < GAMMA_PARAM_SIZE; j++) + printk("0x%02x, ", lcd->gamma_table[i][j]); + printk("\n"); + } +#endif + return 0; + +err_alloc_gamma: + while (i > 0) { + kfree(lcd->gamma_table[i-1]); + i--; + } + kfree(lcd->gamma_table); +err_alloc_gamma_table: + return ret; +} +#endif +#endif + +static int update_brightness(struct lcd_info *lcd, u8 force) +{ + u32 brightness; + + mutex_lock(&lcd->bl_lock); + + brightness = lcd->bd->props.brightness; + + if (unlikely(!lcd->auto_brightness && brightness > 250)) + brightness = 250; + + lcd->bl = get_backlight_level_from_brightness(brightness); + + if ((force) || ((lcd->ldi_enable) && (lcd->current_bl != lcd->bl))) { + +#ifdef CONFIG_AID_DIMMING + if ((force) || unlikely(aid_candela_table[lcd->bl] != aid_candela_table[lcd->current_bl])) +#endif + s6e8ax0_gamma_ctl(lcd); + +#ifdef CONFIG_AID_DIMMING + s6e8ax0_aid_parameter_ctl(lcd , force); +#endif + s6e8ax0_set_acl(lcd); + + s6e8ax0_set_elvss(lcd, force); + + lcd->current_bl = lcd->bl; + + dev_info(&lcd->ld->dev, "brightness=%d, bl=%d, candela=%d\n", brightness, lcd->bl, candela_table[lcd->bl]); + } + + mutex_unlock(&lcd->bl_lock); + + return 0; +} + +static int s6e8ax0_ldi_init(struct lcd_info *lcd) +{ + int ret = 0; + +#if defined(CONFIG_S6E8AA0_AMS529HA01) + s6e8ax0_write(lcd, SEQ_APPLY_LEVEL_2_KEY, ARRAY_SIZE(SEQ_APPLY_LEVEL_2_KEY)); + s6e8ax0_write(lcd, SEQ_LTPS_DELAY, ARRAY_SIZE(SEQ_LTPS_DELAY)); + s6e8ax0_write(lcd, SEQ_SLEEP_OUT, ARRAY_SIZE(SEQ_SLEEP_OUT)); + msleep(22); + s6e8ax0_write(lcd, SEQ_PANEL_CONDITION_SET, ARRAY_SIZE(SEQ_PANEL_CONDITION_SET)); + s6e8ax0_write(lcd, SEQ_DISPLAY_CONDITION_SET, ARRAY_SIZE(SEQ_DISPLAY_CONDITION_SET)); + s6e8ax0_gamma_ctl(lcd); + s6e8ax0_write(lcd, SEQ_ETC_SOURCE_CONTROL, ARRAY_SIZE(SEQ_ETC_SOURCE_CONTROL)); + s6e8ax0_write(lcd, SEQ_ETC_PENTILE_CONTROL, ARRAY_SIZE(SEQ_ETC_PENTILE_CONTROL)); + s6e8ax0_write(lcd, SEQ_ETC_POWER_CONTROL, ARRAY_SIZE(SEQ_ETC_POWER_CONTROL)); + s6e8ax0_write(lcd, SEQ_ELVSS_NVM_SETTING, ARRAY_SIZE(SEQ_ELVSS_NVM_SETTING)); + s6e8ax0_write(lcd, SEQ_ELVSS_CONTROL, ARRAY_SIZE(SEQ_ELVSS_CONTROL)); +#else + s6e8ax0_write(lcd, SEQ_APPLY_LEVEL_2, ARRAY_SIZE(SEQ_APPLY_LEVEL_2)); + s6e8ax0_write(lcd, SEQ_APPLY_MTP_KEY_ENABLE, ARRAY_SIZE(SEQ_APPLY_MTP_KEY_ENABLE)); + s6e8ax0_write(lcd, SEQ_SLEEP_OUT, ARRAY_SIZE(SEQ_SLEEP_OUT)); + msleep(22); + + /* 4.8" HD for M0/C1*/ + if (lcd->id[1] == 0x20 || lcd->id[1] == 0x40 || lcd->id[1] == 0x60) { + s6e8ax0_write(lcd, SEQ_PANEL_CONDITION_SET_500MBPS,\ + ARRAY_SIZE(SEQ_PANEL_CONDITION_SET_500MBPS)); + s6e8ax0_write(lcd, SEQ_DISPLAY_CONDITION_SET, ARRAY_SIZE(SEQ_DISPLAY_CONDITION_SET)); + s6e8ax0_gamma_ctl(lcd); + s6e8ax0_write(lcd, SEQ_ETC_SOURCE_CONTROL, ARRAY_SIZE(SEQ_ETC_SOURCE_CONTROL)); + s6e8ax0_write(lcd, SEQ_ETC_PENTILE_CONTROL, ARRAY_SIZE(SEQ_ETC_PENTILE_CONTROL)); + s6e8ax0_write(lcd, SEQ_ETC_NVM_SETTING, ARRAY_SIZE(SEQ_ETC_NVM_SETTING)); + s6e8ax0_write(lcd, SEQ_ETC_POWER_CONTROL, ARRAY_SIZE(SEQ_ETC_POWER_CONTROL)); + } else if (lcd->id[1] == 0xae) { + s6e8ax0_write(lcd, SEQ_PANEL_CONDITION_SET_480MBPS_46, ARRAY_SIZE(SEQ_PANEL_CONDITION_SET_480MBPS_46)); + s6e8ax0_write(lcd, SEQ_DISPLAY_CONDITION_SET, ARRAY_SIZE(SEQ_DISPLAY_CONDITION_SET)); + s6e8ax0_gamma_ctl(lcd); + s6e8ax0_write(lcd, SEQ_ETC_SOURCE_CONTROL, ARRAY_SIZE(SEQ_ETC_SOURCE_CONTROL)); + s6e8ax0_write(lcd, SEQ_ETC_PENTILE_CONTROL_46, ARRAY_SIZE(SEQ_ETC_PENTILE_CONTROL_46)); + s6e8ax0_write(lcd, SEQ_ETC_NVM_SETTING_46, ARRAY_SIZE(SEQ_ETC_NVM_SETTING_46)); + s6e8ax0_write(lcd, SEQ_ETC_POWER_CONTROL_46, ARRAY_SIZE(SEQ_ETC_POWER_CONTROL_46)); + } else { + s6e8ax0_write(lcd, SEQ_PANEL_CONDITION_SET_500MBPS_46, ARRAY_SIZE(SEQ_PANEL_CONDITION_SET_500MBPS_46)); + s6e8ax0_write(lcd, SEQ_DISPLAY_CONDITION_SET, ARRAY_SIZE(SEQ_DISPLAY_CONDITION_SET)); + s6e8ax0_gamma_ctl(lcd); + s6e8ax0_write(lcd, SEQ_ETC_SOURCE_CONTROL, ARRAY_SIZE(SEQ_ETC_SOURCE_CONTROL)); + s6e8ax0_write(lcd, SEQ_ETC_PENTILE_CONTROL_46, ARRAY_SIZE(SEQ_ETC_PENTILE_CONTROL_46)); + s6e8ax0_write(lcd, SEQ_ETC_NVM_SETTING_46, ARRAY_SIZE(SEQ_ETC_NVM_SETTING_46)); + s6e8ax0_write(lcd, SEQ_ETC_POWER_CONTROL_46, ARRAY_SIZE(SEQ_ETC_POWER_CONTROL_46)); + } + + s6e8ax0_write(lcd, SEQ_ELVSS_CONTROL, ARRAY_SIZE(SEQ_ELVSS_CONTROL)); +#endif + + return ret; +} + +static int s6e8ax0_ldi_enable(struct lcd_info *lcd) +{ + int ret = 0; + + s6e8ax0_write(lcd, SEQ_DISPLAY_ON, ARRAY_SIZE(SEQ_DISPLAY_ON)); + + return ret; +} + +static int s6e8ax0_ldi_disable(struct lcd_info *lcd) +{ + int ret = 0; + + s6e8ax0_write(lcd, SEQ_DISPLAY_OFF, ARRAY_SIZE(SEQ_DISPLAY_OFF)); + s6e8ax0_write(lcd, SEQ_STANDBY_ON, ARRAY_SIZE(SEQ_STANDBY_ON)); + + return ret; +} + +static int s6e8ax0_power_on(struct lcd_info *lcd) +{ + int ret = 0; + struct lcd_platform_data *pd = NULL; + pd = lcd->lcd_pd; + + dev_info(&lcd->ld->dev, "%s\n", __func__); + + ret = s6e8ax0_ldi_init(lcd); + if (ret) { + dev_err(&lcd->ld->dev, "failed to initialize ldi.\n"); + goto err; + } + + msleep(120); + + ret = s6e8ax0_ldi_enable(lcd); + if (ret) { + dev_err(&lcd->ld->dev, "failed to enable ldi.\n"); + goto err; + } + + lcd->ldi_enable = 1; + + update_brightness(lcd, 1); +err: + return ret; +} + +static int s6e8ax0_power_off(struct lcd_info *lcd) +{ + int ret = 0; + + dev_info(&lcd->ld->dev, "%s\n", __func__); + + lcd->ldi_enable = 0; + + ret = s6e8ax0_ldi_disable(lcd); + + msleep(135); + + return ret; +} + +static int s6e8ax0_power(struct lcd_info *lcd, int power) +{ + int ret = 0; + + if (POWER_IS_ON(power) && !POWER_IS_ON(lcd->power)) + ret = s6e8ax0_power_on(lcd); + else if (!POWER_IS_ON(power) && POWER_IS_ON(lcd->power)) + ret = s6e8ax0_power_off(lcd); + + if (!ret) + lcd->power = power; + + return ret; +} + +static int s6e8ax0_set_power(struct lcd_device *ld, int power) +{ + struct lcd_info *lcd = lcd_get_data(ld); + + if (power != FB_BLANK_UNBLANK && power != FB_BLANK_POWERDOWN && + power != FB_BLANK_NORMAL) { + dev_err(&lcd->ld->dev, "power value should be 0, 1 or 4.\n"); + return -EINVAL; + } + + return s6e8ax0_power(lcd, power); +} + +static int s6e8ax0_get_power(struct lcd_device *ld) +{ + struct lcd_info *lcd = lcd_get_data(ld); + + return lcd->power; +} + +static int s6e8ax0_check_fb(struct lcd_device *ld, struct fb_info *fb) +{ + struct s3cfb_window *win = fb->par; + struct lcd_info *lcd = lcd_get_data(ld); + + dev_info(&lcd->ld->dev, "%s, fb%d\n", __func__, win->id); + + return 0; +} + +static int s6e8ax0_set_brightness(struct backlight_device *bd) +{ + int ret = 0; + int brightness = bd->props.brightness; + struct lcd_info *lcd = bl_get_data(bd); + + /* dev_info(&lcd->ld->dev, "%s: brightness=%d\n", __func__, brightness); */ + + if (brightness < MIN_BRIGHTNESS || + brightness > bd->props.max_brightness) { + dev_err(&bd->dev, "lcd brightness should be %d to %d. now %d\n", + MIN_BRIGHTNESS, MAX_BRIGHTNESS, brightness); + return -EINVAL; + } + + if (lcd->ldi_enable) { + ret = update_brightness(lcd, 0); + if (ret < 0) { + dev_err(lcd->dev, "err in %s\n", __func__); + return -EINVAL; + } + } + + return ret; +} + +static int s6e8ax0_get_brightness(struct backlight_device *bd) +{ + struct lcd_info *lcd = bl_get_data(bd); + + return candela_table[lcd->bl]; +} + +static struct lcd_ops s6e8ax0_lcd_ops = { + .set_power = s6e8ax0_set_power, + .get_power = s6e8ax0_get_power, + .check_fb = s6e8ax0_check_fb, +}; + +static const struct backlight_ops s6e8ax0_backlight_ops = { + .get_brightness = s6e8ax0_get_brightness, + .update_status = s6e8ax0_set_brightness, +}; + +static ssize_t power_reduce_show(struct device *dev, + struct device_attribute *attr, char *buf) +{ + struct lcd_info *lcd = dev_get_drvdata(dev); + char temp[3]; + + sprintf(temp, "%d\n", lcd->acl_enable); + strcpy(buf, temp); + + return strlen(buf); +} + +static ssize_t power_reduce_store(struct device *dev, + struct device_attribute *attr, const char *buf, size_t size) +{ + struct lcd_info *lcd = dev_get_drvdata(dev); + int value; + int rc; + + rc = strict_strtoul(buf, (unsigned int)0, (unsigned long *)&value); + if (rc < 0) + return rc; + else { + if (lcd->acl_enable != value) { + dev_info(dev, "%s - %d, %d\n", __func__, lcd->acl_enable, value); + mutex_lock(&lcd->bl_lock); + lcd->acl_enable = value; + if (lcd->ldi_enable) + s6e8ax0_set_acl(lcd); + mutex_unlock(&lcd->bl_lock); + } + } + return size; +} + +static DEVICE_ATTR(power_reduce, 0664, power_reduce_show, power_reduce_store); + +static ssize_t lcd_type_show(struct device *dev, + struct device_attribute *attr, char *buf) +{ + char temp[15]; +#if defined(CONFIG_S6E8AA0_AMS529HA01) + sprintf(temp, "SMD_AMS529HA01\n"); +#else + sprintf(temp, "SMD_AMS480GYXX\n"); +#endif + strcat(buf, temp); + return strlen(buf); +} + +static DEVICE_ATTR(lcd_type, 0444, lcd_type_show, NULL); + +static ssize_t gamma_table_show(struct device *dev, + struct device_attribute *attr, char *buf) +{ + struct lcd_info *lcd = dev_get_drvdata(dev); + int i, j; + + for (i = 0; i < GAMMA_MAX; i++) { + for (j = 0; j < GAMMA_PARAM_SIZE; j++) + printk("0x%02x, ", lcd->gamma_table[i][j]); + printk("\n"); + } + + for (i = 0; i < ELVSS_STATUS_MAX; i++) { + for (j = 0; j < ELVSS_PARAM_SIZE; j++) + printk("0x%02x, ", lcd->elvss_table[i][j]); + printk("\n"); + } + + return strlen(buf); +} +static DEVICE_ATTR(gamma_table, 0444, gamma_table_show, NULL); + +static ssize_t auto_brightness_show(struct device *dev, + struct device_attribute *attr, char *buf) +{ + struct lcd_info *lcd = dev_get_drvdata(dev); + char temp[3]; + + sprintf(temp, "%d\n", lcd->auto_brightness); + strcpy(buf, temp); + + return strlen(buf); +} + +static ssize_t auto_brightness_store(struct device *dev, + struct device_attribute *attr, const char *buf, size_t size) +{ + struct lcd_info *lcd = dev_get_drvdata(dev); + int value; + int rc; + + rc = strict_strtoul(buf, (unsigned int)0, (unsigned long *)&value); + if (rc < 0) + return rc; + else { + if (lcd->auto_brightness != value) { + dev_info(dev, "%s - %d, %d\n", __func__, lcd->auto_brightness, value); + mutex_lock(&lcd->bl_lock); + lcd->auto_brightness = value; + mutex_unlock(&lcd->bl_lock); + if (lcd->ldi_enable) + update_brightness(lcd, 0); + } + } + return size; +} + +static DEVICE_ATTR(auto_brightness, 0644, auto_brightness_show, auto_brightness_store); + +#ifdef CONFIG_HAS_EARLYSUSPEND +struct lcd_info *g_lcd; + +void s6e8ax0_early_suspend(void) +{ + struct lcd_info *lcd = g_lcd; + + set_dsim_lcd_enabled(0); + + dev_info(&lcd->ld->dev, "+%s\n", __func__); +#if defined(GPIO_OLED_DET) + disable_irq(lcd->irq); + gpio_request(GPIO_OLED_DET, "OLED_DET"); + s3c_gpio_cfgpin(GPIO_OLED_DET, S3C_GPIO_OUTPUT); + s3c_gpio_setpull(GPIO_OLED_DET, S3C_GPIO_PULL_NONE); + gpio_direction_output(GPIO_OLED_DET, GPIO_LEVEL_LOW); + gpio_free(GPIO_OLED_DET); +#endif + s6e8ax0_power(lcd, FB_BLANK_POWERDOWN); + dev_info(&lcd->ld->dev, "-%s\n", __func__); + + return ; +} + +void s6e8ax0_late_resume(void) +{ + struct lcd_info *lcd = g_lcd; + + dev_info(&lcd->ld->dev, "+%s\n", __func__); + s6e8ax0_power(lcd, FB_BLANK_UNBLANK); +#if defined(GPIO_OLED_DET) + s3c_gpio_cfgpin(GPIO_OLED_DET, S3C_GPIO_SFN(0xf)); + s3c_gpio_setpull(GPIO_OLED_DET, S3C_GPIO_PULL_NONE); + enable_irq(lcd->irq); +#endif + dev_info(&lcd->ld->dev, "-%s\n", __func__); + + set_dsim_lcd_enabled(1); + + return ; +} +#endif + +static void s6e8ax0_read_id(struct lcd_info *lcd, u8 *buf) +{ + int ret = 0; + + ret = s6e8ax0_read(lcd, LDI_ID_REG, LDI_ID_LEN, buf, 3); + if (!ret) { + lcd->connected = 0; + dev_info(&lcd->ld->dev, "panel is not connected well\n"); + } +} + +#ifdef SMART_DIMMING +static int s6e8ax0_read_mtp(struct lcd_info *lcd, u8 *mtp_data) +{ + int ret; + + ret = s6e8ax0_read(lcd, LDI_MTP_ADDR, LDI_MTP_LENGTH, mtp_data, 0); + + return ret; +} + +#if defined(CONFIG_S6E8AA0_AMS529HA01) +static void s6e8aa0_check_id(struct lcd_info *lcd, u8 *idbuf) +{ + u32 i; + + for (i = 0; i < LDI_ID_LEN; i++) + lcd->smart.panelid[i] = idbuf[i]; + + if (idbuf[2] == 0x33) + lcd->support_elvss = 0; + else { + lcd->support_elvss = 1; + lcd->elvss.limit = (idbuf[2] & 0xc0) >> 6; + lcd->elvss.reference = idbuf[2] & 0x3f; + printk(KERN_DEBUG "Dynamic ELVSS Information, 0x%x\n", lcd->elvss.reference); + } +} +#else +static void s6e8aa0_check_id(struct lcd_info *lcd, u8 *idbuf) +{ + int i; + + for (i = 0; i < LDI_ID_LEN; i++) + lcd->smart.panelid[i] = idbuf[i]; + + if (idbuf[0] == PANEL_A1_M3) + lcd->support_elvss = 0; + else { + lcd->support_elvss = 1; + lcd->elvss.reference = idbuf[2] & (BIT(0) | BIT(1) | BIT(2) | BIT(3) | BIT(4)); + printk(KERN_DEBUG "Dynamic ELVSS Information, 0x%x\n", lcd->elvss.reference); + } +} +#endif +#endif + +static int s6e8ax0_probe(struct device *dev) +{ + int ret = 0; + struct lcd_info *lcd; +#ifdef SMART_DIMMING + u8 mtp_data[LDI_MTP_LENGTH] = {0,}; +#endif + + lcd = kzalloc(sizeof(struct lcd_info), GFP_KERNEL); + if (!lcd) { + pr_err("failed to allocate for lcd\n"); + ret = -ENOMEM; + goto err_alloc; + } + + g_lcd = lcd; + + lcd->ld = lcd_device_register("panel", dev, lcd, &s6e8ax0_lcd_ops); + if (IS_ERR(lcd->ld)) { + pr_err("failed to register lcd device\n"); + ret = PTR_ERR(lcd->ld); + goto out_free_lcd; + } + + lcd->bd = backlight_device_register("panel", dev, lcd, &s6e8ax0_backlight_ops, NULL); + if (IS_ERR(lcd->bd)) { + pr_err("failed to register backlight device\n"); + ret = PTR_ERR(lcd->bd); + goto out_free_backlight; + } + + lcd->dev = dev; + lcd->dsim = (struct dsim_global *)dev_get_drvdata(dev->parent); + lcd->bd->props.max_brightness = MAX_BRIGHTNESS; + lcd->bd->props.brightness = DEFAULT_BRIGHTNESS; + lcd->bl = DEFAULT_GAMMA_LEVEL; + lcd->current_bl = lcd->bl; + + lcd->acl_enable = 0; + lcd->cur_acl = 0; + + lcd->power = FB_BLANK_UNBLANK; + lcd->ldi_enable = 1; + lcd->connected = 1; + lcd->auto_brightness = 0; + + ret = device_create_file(&lcd->ld->dev, &dev_attr_power_reduce); + if (ret < 0) + dev_err(&lcd->ld->dev, "failed to add sysfs entries, %d\n", __LINE__); + + ret = device_create_file(&lcd->ld->dev, &dev_attr_lcd_type); + if (ret < 0) + dev_err(&lcd->ld->dev, "failed to add sysfs entries, %d\n", __LINE__); + + ret = device_create_file(&lcd->ld->dev, &dev_attr_gamma_table); + if (ret < 0) + dev_err(&lcd->ld->dev, "failed to add sysfs entries, %d\n", __LINE__); + + ret = device_create_file(&lcd->bd->dev, &dev_attr_auto_brightness); + if (ret < 0) + dev_err(&lcd->ld->dev, "failed to add sysfs entries, %d\n", __LINE__); + + dev_set_drvdata(dev, lcd); + + mutex_init(&lcd->lock); + mutex_init(&lcd->bl_lock); + + s6e8ax0_read_id(lcd, lcd->id); + + dev_info(&lcd->ld->dev, "ID: %x, %x, %x\n", lcd->id[0], lcd->id[1], lcd->id[2]); + + dev_info(&lcd->ld->dev, "s6e8aa0 lcd panel driver has been probed.\n"); + +#ifdef SMART_DIMMING + s6e8aa0_check_id(lcd, lcd->id); + + init_table_info(&lcd->smart); + + ret = s6e8ax0_read_mtp(lcd, mtp_data); + if (!ret) { + printk(KERN_ERR "[LCD:ERROR] : %s read mtp failed\n", __func__); + /*return -EPERM;*/ + } + + calc_voltage_table(&lcd->smart, mtp_data); + + if (lcd->support_elvss) + ret = init_elvss_table(lcd); + else { + lcd->elvss_table = (unsigned char **)ELVSS_TABLE; + ret = 0; + } + + ret += init_gamma_table(lcd); + +#ifdef CONFIG_AID_DIMMING + if (lcd->id[1] == 0x20 || lcd->id[1] == 0x40 || lcd->id[1] == 0x60) { + printk(KERN_INFO "AID Dimming is started. %d\n", lcd->id[1]); + lcd->support_aid = 1; + ret += init_aid_dimming_table(lcd); + } +#endif + + if (ret) { + printk(KERN_ERR "gamma table generation is failed\n"); + lcd->gamma_table = (unsigned char **)gamma22_table; + lcd->elvss_table = (unsigned char **)ELVSS_TABLE; + } + + update_brightness(lcd, 1); +#endif + +#if defined(GPIO_OLED_DET) + if (lcd->connected) { + INIT_DELAYED_WORK(&lcd->oled_detection, oled_detection_work); + + lcd->irq = gpio_to_irq(GPIO_OLED_DET); + + s3c_gpio_cfgpin(GPIO_OLED_DET, S3C_GPIO_SFN(0xf)); + s3c_gpio_setpull(GPIO_OLED_DET, S3C_GPIO_PULL_NONE); + if (request_irq(lcd->irq, oled_detection_int, + IRQF_TRIGGER_FALLING, "oled_detection", lcd)) + pr_err("failed to reqeust irq. %d\n", lcd->irq); + } +#endif + return 0; + +out_free_backlight: + lcd_device_unregister(lcd->ld); + kfree(lcd); + return ret; + +out_free_lcd: + kfree(lcd); + return ret; + +err_alloc: + return ret; +} + +static int __devexit s6e8ax0_remove(struct device *dev) +{ + struct lcd_info *lcd = dev_get_drvdata(dev); + + s6e8ax0_power(lcd, FB_BLANK_POWERDOWN); + lcd_device_unregister(lcd->ld); + backlight_device_unregister(lcd->bd); + kfree(lcd); + + return 0; +} + +/* Power down all displays on reboot, poweroff or halt. */ +static void s6e8ax0_shutdown(struct device *dev) +{ + struct lcd_info *lcd = dev_get_drvdata(dev); + + dev_info(&lcd->ld->dev, "%s\n", __func__); + + s6e8ax0_power(lcd, FB_BLANK_POWERDOWN); +} + +static struct mipi_lcd_driver s6e8ax0_mipi_driver = { + .name = "s6e8aa0", + .probe = s6e8ax0_probe, + .remove = __devexit_p(s6e8ax0_remove), + .shutdown = s6e8ax0_shutdown, +}; + +static int s6e8ax0_init(void) +{ + return s5p_dsim_register_lcd_driver(&s6e8ax0_mipi_driver); +} + +static void s6e8ax0_exit(void) +{ + return; +} + +module_init(s6e8ax0_init); +module_exit(s6e8ax0_exit); + +MODULE_DESCRIPTION("MIPI-DSI S6E8AA0:AMS529HA01 (800x1280) Panel Driver"); +MODULE_LICENSE("GPL"); |