From f7d37bc3cb20828ac43b22cbd40222877ee2c46a Mon Sep 17 00:00:00 2001 From: Charles Keepax Date: Tue, 28 Mar 2017 15:14:41 +0100 Subject: 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 Signed-off-by: Mark Brown --- drivers/regulator/helpers.c | 18 ++++++++++++++++++ 1 file changed, 18 insertions(+) (limited to 'drivers/regulator/helpers.c') diff --git a/drivers/regulator/helpers.c b/drivers/regulator/helpers.c index a75e7da49af8..2ae7c3ac5940 100644 --- a/drivers/regulator/helpers.c +++ b/drivers/regulator/helpers.c @@ -463,6 +463,24 @@ 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 * -- cgit v1.2.1