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regulator: helpers: Add regmap set_pull_down helper

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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>
This commit is contained in:
Charles Keepax
2017-03-28 15:14:41 +01:00
committed by Mark Brown
parent a7a453f56a
commit f7d37bc3cb
2 changed files with 26 additions and 0 deletions
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18
drivers/regulator/helpers.c
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@@ -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
*