regulator: lp8755: new driver for LP8755

This patch is for new lp8755 regulator dirver and
several unsed variables were deleted and then test was done.

LP8755 :
The LP8755 is a high performance power management unit.It contains
six step-down DC-DC converters which can can be filexibly bundled
together in multiphase converters as required by application.
www.ti.com
Signed-off-by: Daniel Jeong <gshark.jeong@gmail.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>

drivers/regulator/Kconfig

@@ -277,6 +277,15 @@ config REGULATOR_LP872X
 	help
 	  This driver supports LP8720/LP8725 PMIC
 
+config REGULATOR_LP8755
+	tristate "TI LP8755 High Performance PMU driver"
+	depends on I2C
+	select REGMAP_I2C
+	help
+	  This driver supports LP8755 High Performance PMU driver. This
+	  chip contains six step-down DC/DC converters which can support
+	  9 mode multiphase configuration.
+
 config REGULATOR_LP8788
 	bool "TI LP8788 Power Regulators"
 	depends on MFD_LP8788

drivers/regulator/Makefile

@@ -30,6 +30,7 @@ obj-$(CONFIG_REGULATOR_LP3972) += lp3972.o
 obj-$(CONFIG_REGULATOR_LP872X) += lp872x.o
 obj-$(CONFIG_REGULATOR_LP8788) += lp8788-buck.o
 obj-$(CONFIG_REGULATOR_LP8788) += lp8788-ldo.o
+obj-$(CONFIG_REGULATOR_LP8755) += lp8755.o
 obj-$(CONFIG_REGULATOR_MAX1586) += max1586.o
 obj-$(CONFIG_REGULATOR_MAX8649)	+= max8649.o
 obj-$(CONFIG_REGULATOR_MAX8660) += max8660.o

include/linux/platform_data/lp8755.h

+/*
+ * LP8755 High Performance Power Management Unit Driver:System Interface Driver
+ *
+ *			Copyright (C) 2012 Texas Instruments
+ *
+ * Author: Daniel(Geon Si) Jeong <daniel.jeong@ti.com>
+ *             G.Shark Jeong <gshark.jeong@gmail.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.
+ *
+ */
+
+#ifndef _LP8755_H
+#define _LP8755_H
+
+#include <linux/regulator/consumer.h>
+
+#define LP8755_NAME "lp8755-regulator"
+/*
+ *PWR FAULT : power fault detected
+ *OCP : over current protect activated
+ *OVP : over voltage protect activated
+ *TEMP_WARN : thermal warning
+ *TEMP_SHDN : thermal shutdonw detected
+ *I_LOAD : current measured
+ */
+#define LP8755_EVENT_PWR_FAULT REGULATOR_EVENT_FAIL
+#define LP8755_EVENT_OCP REGULATOR_EVENT_OVER_CURRENT
+#define LP8755_EVENT_OVP 0x10000
+#define LP8755_EVENT_TEMP_WARN 0x2000
+#define LP8755_EVENT_TEMP_SHDN REGULATOR_EVENT_OVER_TEMP
+#define LP8755_EVENT_I_LOAD	0x40000
+
+enum lp8755_bucks {
+	LP8755_BUCK0 = 0,
+	LP8755_BUCK1,
+	LP8755_BUCK2,
+	LP8755_BUCK3,
+	LP8755_BUCK4,
+	LP8755_BUCK5,
+	LP8755_BUCK_MAX,
+};
+
+/**
+ * multiphase configuration options
+ */
+enum lp8755_mphase_config {
+	MPHASE_CONF0,
+	MPHASE_CONF1,
+	MPHASE_CONF2,
+	MPHASE_CONF3,
+	MPHASE_CONF4,
+	MPHASE_CONF5,
+	MPHASE_CONF6,
+	MPHASE_CONF7,
+	MPHASE_CONF8,
+	MPHASE_CONF_MAX
+};
+
+/**
+ * struct lp8755_platform_data
+ * @mphase_type : Multiphase Switcher Configurations.
+ * @buck_data   : buck0~6 init voltage in uV
+ */
+struct lp8755_platform_data {
+	int mphase;
+	struct regulator_init_data *buck_data[LP8755_BUCK_MAX];
+};
+#endif