regulator: lp872x: Add enable GPIO pin support

LP872x regulators are made active via the EN pin, which might be hooked to a
GPIO. This adds support for driving the GPIO high when the driver is in use.

Signed-off-by: Paul Kocialkowski <contact@paulk.fr>
Signed-off-by: Mark Brown <broonie@kernel.org>

1 files changed, 5 insertions, 0 deletions

diff --git a/include/linux/regulator/lp872x.h b/include/linux/regulator/lp872x.h
index 132e05c46661..6029279f4eed 100644
--- a/include/linux/regulator/lp872x.h
+++ b/include/linux/regulator/lp872x.h
@@ -18,6 +18,9 @@
 
 #define LP872X_MAX_REGULATORS           9
 
+#define LP8720_ENABLE_DELAY             200
+#define LP8725_ENABLE_DELAY             30000
+
 enum lp872x_regulator_id {
         LP8720_ID_BASE,
         LP8720_ID_LDO1 = LP8720_ID_BASE,
@@ -79,12 +82,14 @@ struct lp872x_regulator_data {
  * @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
+ * @enable_gpio       : gpio pin number for enable control
  */
 struct lp872x_platform_data {
         u8 general_config;
         bool update_config;
         struct lp872x_regulator_data regulator_data[LP872X_MAX_REGULATORS];
         struct lp872x_dvs *dvs;
+        int enable_gpio;
 };
 
 #endif