samsung update 1

1 files changed, 93 insertions, 0 deletions

diff --git a/arch/arm/mach-exynos/include/mach/busfreq_exynos5.h b/arch/arm/mach-exynos/include/mach/busfreq_exynos5.h
new file mode 100644
index 0000000..fe00bd1
--- /dev/null
+++ b/arch/arm/mach-exynos/include/mach/busfreq_exynos5.h
@@ -0,0 +1,93 @@
+/* linux/arch/arm/mach-exynos/include/mach/busfreq_exynos5.h
+ *
+ * Copyright (c) 2010 Samsung Electronics Co., Ltd.
+ *		http://www.samsung.com
+ *
+ * EXYNOS4 - BUSFreq support
+ *
+ * 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.
+*/
+
+#ifndef __ASM_ARCH_BUSFREQ_H
+#define __ASM_ARCH_BUSFREQ_H __FILE__
+
+#include <linux/notifier.h>
+#include <linux/earlysuspend.h>
+
+#include <mach/ppmu.h>
+
+#define MAX_LOAD		100
+#define LOAD_HISTORY_SIZE	5
+#define DIVIDING_FACTOR		10000
+
+#define TIMINGROW_OFFSET	0x34
+
+enum busfreq_level_idx {
+	LV_0,
+	LV_1,
+	LV_2,
+	LV_3,
+	LV_INT_END,
+	LV_MIF_END = LV_3,
+};
+
+struct opp;
+struct device;
+struct busfreq_table;
+
+struct busfreq_data {
+	bool use;
+	struct device *dev[PPMU_TYPE_END];
+	struct delayed_work worker;
+	unsigned long curr_freq[PPMU_TYPE_END];
+	unsigned long max_freq[PPMU_TYPE_END];
+	unsigned long min_freq[PPMU_TYPE_END];
+	struct regulator *vdd_reg[PPMU_TYPE_END];
+	unsigned int sampling_rate;
+	struct kobject *busfreq_kobject;
+	struct busfreq_table *table[PPMU_TYPE_END];
+	unsigned long long time_in_state[PPMU_TYPE_END][LV_INT_END];
+	unsigned long long last_time[PPMU_TYPE_END];
+	unsigned int load_history[PPMU_END][LOAD_HISTORY_SIZE];
+	int index;
+
+	struct notifier_block exynos_buspm_notifier;
+	struct notifier_block exynos_reboot_notifier;
+	struct notifier_block exynos_request_notifier;
+	struct early_suspend busfreq_early_suspend_handler;
+	struct attribute_group busfreq_attr_group;
+	int (*init)	(struct device *dev, struct busfreq_data *data);
+	void (*monitor) (struct busfreq_data *data, struct opp **mif_opp,
+			struct opp **int_opp);
+	void (*target)	(struct busfreq_data *data, enum ppmu_type type, int index);
+	unsigned int (*get_int_volt) (unsigned long freq);
+	int (*get_table_index) (unsigned long freq, enum ppmu_type type);
+	void (*busfreq_prepare) (int index);
+	void (*busfreq_post) (int index);
+	void (*busfreq_suspend) (void);
+	void (*busfreq_resume) (void);
+
+	/* Dividers calculated at boot/probe-time */
+	unsigned int lex_divtable[LV_INT_END];
+	unsigned int r0x_divtable[LV_INT_END];
+	unsigned int r1x_divtable[LV_INT_END];
+	unsigned int cdrex_divtable[LV_MIF_END];
+	unsigned int cdrex2_divtable[LV_MIF_END];
+};
+
+struct busfreq_table {
+	unsigned int idx;
+	unsigned int mem_clk;
+	unsigned int volt;
+	unsigned int clk_topdiv;
+	unsigned int clk_dmc0div;
+	unsigned int clk_dmc1div;
+};
+
+void exynos_request_apply(unsigned long freq);
+unsigned long step_down(struct busfreq_data *data, enum ppmu_type type, int step);
+
+int exynos5250_init(struct device *dev, struct busfreq_data *data);
+#endif /* __ASM_ARCH_BUSFREQ_H */