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regulator: core: Allow specify apply_[reg|bit] for regmap based voltage_sel operations

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Some DVM regulators needs to update apply_bit after setting vsel_reg to
initiate voltage change on the output.  This patch adds apply_reg and
apply_bit to struct regulator_desc and update
regulator_set_voltage_sel_regmap() to set apply_bit of apply_reg when
apply_bit is set.

Signed-off-by: Axel Lin <axel.lin@ingics.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
This commit is contained in:
Axel Lin
2012-12-18 09:30:10 +08:00
committed by Mark Brown
parent a49f0d1ea3
commit c8520b4c5d
2 changed files with 17 additions and 1 deletions
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12
drivers/regulator/core.c
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@@ -2074,10 +2074,20 @@ EXPORT_SYMBOL_GPL(regulator_get_voltage_sel_regmap);
*/
int regulator_set_voltage_sel_regmap(struct regulator_dev *rdev, unsigned sel)
{
int ret;
sel <<= ffs(rdev->desc->vsel_mask) - 1;
return regmap_update_bits(rdev->regmap, rdev->desc->vsel_reg,
ret = regmap_update_bits(rdev->regmap, rdev->desc->vsel_reg,
rdev->desc->vsel_mask, sel);
if (ret)
return ret;
if (rdev->desc->apply_bit)
ret = regmap_update_bits(rdev->regmap, rdev->desc->apply_reg,
rdev->desc->apply_bit,
rdev->desc->apply_bit);
return ret;
}
EXPORT_SYMBOL_GPL(regulator_set_voltage_sel_regmap);