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 --- drivers/regulator/helpers.c | 18 ++++++++++++++++++ include/linux/regulator/driver.h | 4 ++++ 2 files changed, 22 insertions(+)
diff --git a/drivers/regulator/helpers.c b/drivers/regulator/helpers.c index a75e7da..2ae7c3a 100644 --- a/drivers/regulator/helpers.c +++ b/drivers/regulator/helpers.c @@ -464,6 +464,24 @@ int regulator_set_soft_start_regmap(struct regulator_dev *rdev) EXPORT_SYMBOL_GPL(regulator_set_soft_start_regmap);
/** + * regulator_set_pull_down_regmap - Default set_pull_down() using regmap + * + * @rdev: device to operate on. + */ +int regulator_set_pull_down_regmap(struct regulator_dev *rdev) +{ + unsigned int val; + + val = rdev->desc->pull_down_val_on; + if (!val) + val = rdev->desc->pull_down_mask; + + return regmap_update_bits(rdev->regmap, rdev->desc->pull_down_reg, + rdev->desc->pull_down_mask, val); +} +EXPORT_SYMBOL_GPL(regulator_set_pull_down_regmap); + +/** * regulator_get_bypass_regmap - Default get_bypass() using regmap * * @rdev: device to operate on. diff --git a/include/linux/regulator/driver.h b/include/linux/regulator/driver.h index 7e2e70d..97b55b5 100644 --- a/include/linux/regulator/driver.h +++ b/include/linux/regulator/driver.h @@ -348,6 +348,9 @@ 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;
@@ -480,6 +483,7 @@ 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);