regulator: helpers: Add regmap set_pull_down helper

Add a helper function regulator_set_pull_down_regmap to allow regmap
based regulators to easily enable pull down.

Signed-off-by: Charles Keepax <ckeepax@opensource.wolfsonmicro.com>
Signed-off-by: Mark Brown <broonie@kernel.org>

1 files changed, 8 insertions, 0 deletions

diff --git a/include/linux/regulator/driver.h b/include/linux/regulator/driver.h
index 1054c033e783..8a9078dd2a5f 100644
--- a/include/linux/regulator/driver.h
+++ b/include/linux/regulator/driver.h
@@ -296,6 +296,10 @@ enum regulator_type {
  * @soft_start_mask: Mask for control when using regmap set_soft_start
  * @soft_start_val_on: Enabling value for control when using regmap
  *                     set_soft_start
+ * @pull_down_reg: Register for control when using regmap set_pull_down
+ * @pull_down_mask: Mask for control when using regmap set_pull_down
+ * @pull_down_val_on: Enabling value for control when using regmap
+ *                     set_pull_down
  *
  * @enable_time: Time taken for initial enable of regulator (in uS).
  * @off_on_delay: guard time (in uS), before re-enabling a regulator
@@ -352,6 +356,9 @@ struct regulator_desc {
         unsigned int soft_start_reg;
         unsigned int soft_start_mask;
         unsigned int soft_start_val_on;
+        unsigned int pull_down_reg;
+        unsigned int pull_down_mask;
+        unsigned int pull_down_val_on;
 
         unsigned int enable_time;
 
@@ -484,6 +491,7 @@ int regulator_set_voltage_time_sel(struct regulator_dev *rdev,
 int regulator_set_bypass_regmap(struct regulator_dev *rdev, bool enable);
 int regulator_get_bypass_regmap(struct regulator_dev *rdev, bool *enable);
 int regulator_set_soft_start_regmap(struct regulator_dev *rdev);
+int regulator_set_pull_down_regmap(struct regulator_dev *rdev);
 
 int regulator_set_active_discharge_regmap(struct regulator_dev *rdev,
                                           bool enable);