regulator: Add support for RICOH PMIC RC5T583 regulator

The RC5T583 PMIC from RICOH consists of 4 DCDC and 10
LDOs. This driver supports the control of different
regulator output through regulator interface.
This driver depends on MFD driver of RC5T583 and uses
mfd rc5t583 apis to communicate to device for accessing
different device's registers.

Signed-off-by: Laxman Dewangan <ldewangan@nvidia.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>

1 files changed, 29 insertions, 0 deletions

diff --git a/include/linux/mfd/rc5t583.h b/include/linux/mfd/rc5t583.h
index a2c61609d21d..b2c1f442d4ef 100644
--- a/include/linux/mfd/rc5t583.h
+++ b/include/linux/mfd/rc5t583.h
@@ -249,6 +249,26 @@ enum {
         RC5T583_EXT_PWRREQ2_CONTROL = 0x2,
 };
 
+enum {
+        RC5T583_REGULATOR_DC0,
+        RC5T583_REGULATOR_DC1,
+        RC5T583_REGULATOR_DC2,
+        RC5T583_REGULATOR_DC3,
+        RC5T583_REGULATOR_LDO0,
+        RC5T583_REGULATOR_LDO1,
+        RC5T583_REGULATOR_LDO2,
+        RC5T583_REGULATOR_LDO3,
+        RC5T583_REGULATOR_LDO4,
+        RC5T583_REGULATOR_LDO5,
+        RC5T583_REGULATOR_LDO6,
+        RC5T583_REGULATOR_LDO7,
+        RC5T583_REGULATOR_LDO8,
+        RC5T583_REGULATOR_LDO9,
+
+        /* Should be last entry */
+        RC5T583_REGULATOR_MAX,
+};
+
 struct rc5t583 {
         struct device   *dev;
         struct regmap   *regmap;
@@ -272,11 +292,20 @@ struct rc5t583 {
  * The board specific data is provided through this structure.
  * @irq_base: Irq base number on which this device registers their interrupts.
  * @enable_shutdown: Enable shutdown through the input pin "shutdown".
+ * @regulator_deepsleep_slot: The slot number on which device goes to sleep
+ *              in device sleep mode.
+ * @regulator_ext_pwr_control: External power request regulator control. The
+ *              regulator output enable/disable is controlled by the external
+ *              power request input state.
+ * @reg_init_data: Regulator init data.
  */
 
 struct rc5t583_platform_data {
         int             irq_base;
         bool            enable_shutdown;
+        int             regulator_deepsleep_slot[RC5T583_REGULATOR_MAX];
+        unsigned long   regulator_ext_pwr_control[RC5T583_REGULATOR_MAX];
+        struct regulator_init_data *reg_init_data[RC5T583_REGULATOR_MAX];
 };
 
 int rc5t583_write(struct device *dev, u8 reg, uint8_t val);