4 files changed, 118 insertions, 0 deletions

diff --git a/include/linux/regulator/driver.h b/include/linux/regulator/driver.h
index 2513a54ca2e8..bac4c871f3bd 100644
--- a/include/linux/regulator/driver.h
+++ b/include/linux/regulator/driver.h
@@ -69,6 +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
@@ -115,6 +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);
@@ -172,12 +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;
@@ -191,6 +197,7 @@ struct regulator_desc {
 
         unsigned int min_uV;
         unsigned int uV_step;
+        unsigned int ramp_delay;
 
         const unsigned int *volt_table;
 
@@ -198,6 +205,8 @@ struct regulator_desc {
         unsigned int vsel_mask;
         unsigned int enable_reg;
         unsigned int enable_mask;
+
+        unsigned int enable_time;
 };
 
 /**
@@ -213,6 +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;
@@ -220,6 +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;
 };
 
 /*
@@ -258,6 +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 *
@@ -287,6 +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 680f24e08af2..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;
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 */