regulator: tps65910: Sleep control through external inputs

Add support for sleep controls of different regulator through
external inputs EN1, EN2 or EN3.
Each regulator's output will be active when its external
input is high and turns to OFF/Low power mode when its
external input is low.
The configuration parameters for sleep control is provided through
board specific platform data.

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

1 files changed, 8 insertions, 0 deletions

diff --git a/include/linux/mfd/tps65910.h b/include/linux/mfd/tps65910.h
index d0cb12eba402..fa6c6bf7a54d 100644
--- a/include/linux/mfd/tps65910.h
+++ b/include/linux/mfd/tps65910.h
@@ -768,6 +768,13 @@
 /* Max number of TPS65910/11 regulators */
 #define TPS65910_NUM_REGS                               13
 
+/* External sleep controls through EN1/EN2/EN3 inputs*/
+#define TPS65910_SLEEP_CONTROL_EXT_INPUT_EN1            0x1
+#define TPS65910_SLEEP_CONTROL_EXT_INPUT_EN2            0x2
+#define TPS65910_SLEEP_CONTROL_EXT_INPUT_EN3            0x4
+/* TPS65911 names the EN3 signal as SLEEP */
+#define TPS65911_SLEEP_CONTROL_EXT_INPUT_SLEEP          0x4
+
 /**
  * struct tps65910_board
  * Board platform data may be used to initialize regulators.
@@ -779,6 +786,7 @@ struct tps65910_board {
         int irq_base;
         int vmbch_threshold;
         int vmbch2_threshold;
+        unsigned long regulator_ext_sleep_control[TPS65910_NUM_REGS];
         struct regulator_init_data *tps65910_pmic_init_data[TPS65910_NUM_REGS];
 };