Merge tag 'regulator-3.6' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regulator

Pull regulator updates from Mark Brown:
 "Lots and lots of fixes from Axel and some others here, plus some
  framework enhancements which continue the theme of factoring code out
  of the drivers and into the core.

   - Initial framework support for GPIO controlled enable signals,
     saving a bunch of code in drivers.
   - Move fixed regulator enable time and voltage mapping table
     specifications to data.
   - Used some of the recent framework enhancements to make voltage
     change notifications more useful, passing the voltage in as an
     argument to the notification.
   - Fixed the pattern used for finding individual regulators on a
     device to not rely on the node name, supporting the use of multiple
     PMICs of the same type in the system.
   - New drivers for Maxim MAX77686, TI LP872x and LP8788, Samsung
     S2MPS11, and Wolfson Arizona microphone supplies and LDOs."

* tag 'regulator-3.6' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regulator: (176 commits)
  regulator: add new lp8788 regulator driver
  regulator: mc13xxx: Remove extern function declaration for mc13xxx_sw_regulator
  regulator: tps65910: set input_supply on desc unconditionally
  regulator: palmas: Fix calcuating selector in palmas_map_voltage_smps
  regulator: lp872x: Simplify implementation of lp872x_find_regulator_init_data()
  regulator: twl: Fix list_voltate for twl6030ldo_ops
  regulator: twl: Convert twl6030ldo_ops to [get|set]_voltage_sel
  regulator: twl: Fix the formula to calculate vsel and voltage for twl6030ldo
  regulator: s5m8767: Properly handle gpio_request failure
  regulator: max8997: Properly handle gpio_request failure
  regulator: tps62360: use devm_* for gpio request
  regulator: tps6586x: add support for input supply
  regulator: tps65217: Add device tree support
  regulator: aat2870: Remove unused min_uV and max_uV from struct aat2870_regulator
  regulator: aat2870: Convert to regulator_list_voltage_table
  regulator: da9052: initialize of_node param for regulator register
  regulator: Add REGULATOR_STATUS_UNDEFINED.
  regulator: Fix a typo in regulator_mode_to_status() core function.
  regulator: s2mps11: Use sec_reg_write rather than sec_reg_update when mask is 0xff
  regulator: s2mps11: Fix wrong setting for config.dev
  ...

8 files changed, 151 insertions, 15 deletions

diff --git a/include/linux/mfd/s5m87xx/s5m-core.h b/include/linux/mfd/s5m87xx/s5m-core.h
index 21603b42f22f..0b2e0ed309f5 100644
--- a/include/linux/mfd/s5m87xx/s5m-core.h
+++ b/include/linux/mfd/s5m87xx/s5m-core.h
@@ -347,6 +347,7 @@ struct s5m_platform_data {
 	bool				buck_voltage_lock;
 
 	int				buck_gpios[3];
+	int				buck_ds[3];
 	int				buck2_voltage[8];
 	bool				buck2_gpiodvs;
 	int				buck3_voltage[8];
@@ -369,6 +370,10 @@ struct s5m_platform_data {
 	bool                            buck2_ramp_enable;
 	bool                            buck3_ramp_enable;
 	bool                            buck4_ramp_enable;
+
+	int				buck2_init;
+	int				buck3_init;
+	int				buck4_init;
 };
 
 #endif /*  __LINUX_MFD_S5M_CORE_H */
diff --git a/include/linux/mfd/tps65217.h b/include/linux/mfd/tps65217.h
index e030ef9a64ee..12c06870829a 100644
--- a/include/linux/mfd/tps65217.h
+++ b/include/linux/mfd/tps65217.h
@@ -217,7 +217,8 @@ enum tps65217_regulator_id {
  * Board data may be used to initialize regulator.
  */
 struct tps65217_board {
-	struct regulator_init_data *tps65217_init_data;
+	struct regulator_init_data *tps65217_init_data[TPS65217_NUM_REGULATOR];
+	struct device_node *of_node[TPS65217_NUM_REGULATOR];
 };
 
 /**
@@ -227,11 +228,6 @@ struct tps65217_board {
  * @max_uV:		minimum micro volts
  * @vsel_to_uv:		Function pointer to get voltage from selector
  * @uv_to_vsel:		Function pointer to get selector from voltage
- * @table:		Table for non-uniform voltage step-size
- * @table_len:		Length of the voltage table
- * @enable_mask:	Regulator enable mask bits
- * @set_vout_reg:	Regulator output voltage set register
- * @set_vout_mask:	Regulator output voltage set mask
  *
  * This data is used to check the regualtor voltage limits while setting.
  */
@@ -241,11 +237,6 @@ struct tps_info {
 	int max_uV;
 	int (*vsel_to_uv)(unsigned int vsel);
 	int (*uv_to_vsel)(int uV, unsigned int *vsel);
-	const int *table;
-	unsigned int table_len;
-	unsigned int enable_mask;
-	unsigned int set_vout_reg;
-	unsigned int set_vout_mask;
 };
 
 /**
diff --git a/include/linux/mfd/tps65910.h b/include/linux/mfd/tps65910.h
index dd8dc0a6c462..6c4c478e21a4 100644
--- a/include/linux/mfd/tps65910.h
+++ b/include/linux/mfd/tps65910.h
@@ -880,4 +880,10 @@ static inline int tps65910_reg_clear_bits(struct tps65910 *tps65910, u8 reg,
 	return regmap_update_bits(tps65910->regmap, reg, mask, 0);
 }
 
+static inline int tps65910_reg_update_bits(struct tps65910 *tps65910, u8 reg,
+					   u8 mask, u8 val)
+{
+	return regmap_update_bits(tps65910->regmap, reg, mask, val);
+}
+
 #endif /*  __LINUX_MFD_TPS65910_H */
diff --git a/include/linux/regulator/consumer.h b/include/linux/regulator/consumer.h
index 4ed1b30ac5fc..da339fd8c755 100644
--- a/include/linux/regulator/consumer.h
+++ b/include/linux/regulator/consumer.h
@@ -291,6 +291,12 @@ static inline int regulator_set_voltage(struct regulator *regulator,
 
 static inline int regulator_get_voltage(struct regulator *regulator)
 {
+	return -EINVAL;
+}
+
+static inline int regulator_is_supported_voltage(struct regulator *regulator,
+				   int min_uV, int max_uV)
+{
 	return 0;
 }
 
diff --git a/include/linux/regulator/driver.h b/include/linux/regulator/driver.h
index b0432cc2b169..bac4c871f3bd 100644
--- a/include/linux/regulator/driver.h
+++ b/include/linux/regulator/driver.h
@@ -32,6 +32,8 @@ enum regulator_status {
 	REGULATOR_STATUS_NORMAL,
 	REGULATOR_STATUS_IDLE,
 	REGULATOR_STATUS_STANDBY,
+	/* in case that any other status doesn't apply */
+	REGULATOR_STATUS_UNDEFINED,
 };
 
 /**
@@ -67,6 +69,8 @@ enum regulator_status {
  *
  * @enable_time: Time taken for the regulator voltage output voltage to
  *               stabilise after being enabled, in microseconds.
+ * @set_ramp_delay: Set the ramp delay for the regulator. The driver should
+ *		select ramp delay equal to or less than(closest) ramp_delay.
  * @set_voltage_time_sel: Time taken for the regulator voltage output voltage
  *               to stabilise after being set to a new value, in microseconds.
  *               The function provides the from and to voltage selector, the
@@ -113,6 +117,7 @@ struct regulator_ops {
 
 	/* Time taken to enable or set voltage on the regulator */
 	int (*enable_time) (struct regulator_dev *);
+	int (*set_ramp_delay) (struct regulator_dev *, int ramp_delay);
 	int (*set_voltage_time_sel) (struct regulator_dev *,
 				     unsigned int old_selector,
 				     unsigned int new_selector);
@@ -170,11 +175,15 @@ enum regulator_type {
  *
  * @min_uV: Voltage given by the lowest selector (if linear mapping)
  * @uV_step: Voltage increase with each selector (if linear mapping)
+ * @ramp_delay: Time to settle down after voltage change (unit: uV/us)
+ * @volt_table: Voltage mapping table (if table based mapping)
  *
  * @vsel_reg: Register for selector when using regulator_regmap_X_voltage_
  * @vsel_mask: Mask for register bitfield used for selector
  * @enable_reg: Register for control when using regmap enable/disable ops
  * @enable_mask: Mask for control when using regmap enable/disable ops
+ *
+ * @enable_time: Time taken for initial enable of regulator (in uS).
  */
 struct regulator_desc {
 	const char *name;
@@ -188,11 +197,16 @@ struct regulator_desc {
 
 	unsigned int min_uV;
 	unsigned int uV_step;
+	unsigned int ramp_delay;
+
+	const unsigned int *volt_table;
 
 	unsigned int vsel_reg;
 	unsigned int vsel_mask;
 	unsigned int enable_reg;
 	unsigned int enable_mask;
+
+	unsigned int enable_time;
 };
 
 /**
@@ -208,6 +222,9 @@ struct regulator_desc {
  * @of_node: OpenFirmware node to parse for device tree bindings (may be
  *           NULL).
  * @regmap: regmap to use for core regmap helpers
+ * @ena_gpio: GPIO controlling regulator enable.
+ * @ena_gpio_invert: Sense for GPIO enable control.
+ * @ena_gpio_flags: Flags to use when calling gpio_request_one()
  */
 struct regulator_config {
 	struct device *dev;
@@ -215,6 +232,10 @@ struct regulator_config {
 	void *driver_data;
 	struct device_node *of_node;
 	struct regmap *regmap;
+
+	int ena_gpio;
+	unsigned int ena_gpio_invert:1;
+	unsigned int ena_gpio_flags;
 };
 
 /*
@@ -253,6 +274,10 @@ struct regulator_dev {
 	void *reg_data;		/* regulator_dev data */
 
 	struct dentry *debugfs;
+
+	int ena_gpio;
+	unsigned int ena_gpio_invert:1;
+	unsigned int ena_gpio_state:1;
 };
 
 struct regulator_dev *
@@ -271,6 +296,8 @@ int regulator_mode_to_status(unsigned int);
 
 int regulator_list_voltage_linear(struct regulator_dev *rdev,
 				  unsigned int selector);
+int regulator_list_voltage_table(struct regulator_dev *rdev,
+				  unsigned int selector);
 int regulator_map_voltage_linear(struct regulator_dev *rdev,
 				  int min_uV, int max_uV);
 int regulator_map_voltage_iterate(struct regulator_dev *rdev,
@@ -280,6 +307,9 @@ int regulator_set_voltage_sel_regmap(struct regulator_dev *rdev, unsigned sel);
 int regulator_is_enabled_regmap(struct regulator_dev *rdev);
 int regulator_enable_regmap(struct regulator_dev *rdev);
 int regulator_disable_regmap(struct regulator_dev *rdev);
+int regulator_set_voltage_time_sel(struct regulator_dev *rdev,
+				   unsigned int old_selector,
+				   unsigned int new_selector);
 
 void *regulator_get_init_drvdata(struct regulator_init_data *reg_init_data);
 
diff --git a/include/linux/regulator/fixed.h b/include/linux/regulator/fixed.h
index f83f7440b488..48918be649d4 100644
--- a/include/linux/regulator/fixed.h
+++ b/include/linux/regulator/fixed.h
@@ -22,6 +22,7 @@ struct regulator_init_data;
 /**
  * struct fixed_voltage_config - fixed_voltage_config structure
  * @supply_name:	Name of the regulator supply
+ * @input_supply:	Name of the input regulator supply
  * @microvolts:		Output voltage of regulator
  * @gpio:		GPIO to use for enable control
  * 			set to -EINVAL if not used
@@ -46,6 +47,7 @@ struct regulator_init_data;
  */
 struct fixed_voltage_config {
 	const char *supply_name;
+	const char *input_supply;
 	int microvolts;
 	int gpio;
 	unsigned startup_delay;
@@ -58,14 +60,17 @@ struct fixed_voltage_config {
 struct regulator_consumer_supply;
 
 #if IS_ENABLED(CONFIG_REGULATOR)
-struct platform_device *regulator_register_fixed(int id,
-		struct regulator_consumer_supply *supplies, int num_supplies);
+struct platform_device *regulator_register_always_on(int id, const char *name,
+		struct regulator_consumer_supply *supplies, int num_supplies, int uv);
 #else
-static inline struct platform_device *regulator_register_fixed(int id,
-		struct regulator_consumer_supply *supplies, int num_supplies)
+static inline struct platform_device *regulator_register_always_on(int id, const char *name,
+		struct regulator_consumer_supply *supplies, int num_supplies, int uv)
 {
 	return NULL;
 }
 #endif
 
+#define regulator_register_fixed(id, s, ns) regulator_register_always_on(id, \
+						"fixed-dummy", s, ns, 0)
+
 #endif
diff --git a/include/linux/regulator/lp872x.h b/include/linux/regulator/lp872x.h
new file mode 100644
index 000000000000..132e05c46661
--- /dev/null
+++ b/include/linux/regulator/lp872x.h
@@ -0,0 +1,90 @@
+/*
+ * Copyright 2012 Texas Instruments
+ *
+ * Author: Milo(Woogyom) Kim <milo.kim@ti.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 __LP872X_REGULATOR_H__
+#define __LP872X_REGULATOR_H__
+
+#include <linux/regulator/machine.h>
+#include <linux/platform_device.h>
+#include <linux/gpio.h>
+
+#define LP872X_MAX_REGULATORS		9
+
+enum lp872x_regulator_id {
+	LP8720_ID_BASE,
+	LP8720_ID_LDO1 = LP8720_ID_BASE,
+	LP8720_ID_LDO2,
+	LP8720_ID_LDO3,
+	LP8720_ID_LDO4,
+	LP8720_ID_LDO5,
+	LP8720_ID_BUCK,
+
+	LP8725_ID_BASE,
+	LP8725_ID_LDO1 = LP8725_ID_BASE,
+	LP8725_ID_LDO2,
+	LP8725_ID_LDO3,
+	LP8725_ID_LDO4,
+	LP8725_ID_LDO5,
+	LP8725_ID_LILO1,
+	LP8725_ID_LILO2,
+	LP8725_ID_BUCK1,
+	LP8725_ID_BUCK2,
+
+	LP872X_ID_MAX,
+};
+
+enum lp872x_dvs_state {
+	DVS_LOW  = GPIOF_OUT_INIT_LOW,
+	DVS_HIGH = GPIOF_OUT_INIT_HIGH,
+};
+
+enum lp872x_dvs_sel {
+	SEL_V1,
+	SEL_V2,
+};
+
+/**
+ * lp872x_dvs
+ * @gpio       : gpio pin number for dvs control
+ * @vsel       : dvs selector for buck v1 or buck v2 register
+ * @init_state : initial dvs pin state
+ */
+struct lp872x_dvs {
+	int gpio;
+	enum lp872x_dvs_sel vsel;
+	enum lp872x_dvs_state init_state;
+};
+
+/**
+ * lp872x_regdata
+ * @id        : regulator id
+ * @init_data : init data for each regulator
+ */
+struct lp872x_regulator_data {
+	enum lp872x_regulator_id id;
+	struct regulator_init_data *init_data;
+};
+
+/**
+ * lp872x_platform_data
+ * @general_config    : the value of LP872X_GENERAL_CFG register
+ * @update_config     : if LP872X_GENERAL_CFG register is updated, set true
+ * @regulator_data    : platform regulator id and init data
+ * @dvs               : dvs data for buck voltage control
+ */
+struct lp872x_platform_data {
+	u8 general_config;
+	bool update_config;
+	struct lp872x_regulator_data regulator_data[LP872X_MAX_REGULATORS];
+	struct lp872x_dvs *dvs;
+};
+
+#endif
diff --git a/include/linux/regulator/machine.h b/include/linux/regulator/machine.h
index b02108446be7..40dd0a394cfa 100644
--- a/include/linux/regulator/machine.h
+++ b/include/linux/regulator/machine.h
@@ -92,6 +92,7 @@ struct regulator_state {
  *                 mode.
  * @initial_state: Suspend state to set by default.
  * @initial_mode: Mode to set at startup.
+ * @ramp_delay: Time to settle down after voltage change (unit: uV/us)
  */
 struct regulation_constraints {
 
@@ -125,6 +126,8 @@ struct regulation_constraints {
 	/* mode to set on startup */
 	unsigned int initial_mode;
 
+	unsigned int ramp_delay;
+
 	/* constraint flags */
 	unsigned always_on:1;	/* regulator never off when system is on */
 	unsigned boot_on:1;	/* bootloader/firmware enabled regulator */