diff options
| author | Axel Lin <axel.lin@ingics.com> | 2012-12-18 09:30:10 +0800 |
|---|---|---|
| committer | Mark Brown <broonie@opensource.wolfsonmicro.com> | 2012-12-24 16:34:11 +0000 |
| commit | c8520b4c5d25eb7b8b54f1ae9ba7da71375f2b2c (patch) | |
| tree | 30ac7c7e9f1f2a00523019409bf223a5a4417aa9 | |
| parent | a49f0d1ea3ec94fc7cf33a7c36a16343b74bd565 (diff) | |
regulator: core: Allow specify apply_[reg|bit] for regmap based voltage_sel operations
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>
| -rw-r--r-- | drivers/regulator/core.c | 12 | ||||
| -rw-r--r-- | include/linux/regulator/driver.h | 6 |
2 files changed, 17 insertions, 1 deletions
diff --git a/drivers/regulator/core.c b/drivers/regulator/core.c index 0f65b246cc0c..571ce0f1c06e 100644 --- a/drivers/regulator/core.c +++ b/drivers/regulator/core.c @@ -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); diff --git a/include/linux/regulator/driver.h b/include/linux/regulator/driver.h index d10bb0f39c5e..23070fd83872 100644 --- a/include/linux/regulator/driver.h +++ b/include/linux/regulator/driver.h @@ -193,6 +193,10 @@ enum regulator_type { * * @vsel_reg: Register for selector when using regulator_regmap_X_voltage_ * @vsel_mask: Mask for register bitfield used for selector + * @apply_reg: Register for initiate voltage change on the output when + * using regulator_set_voltage_sel_regmap + * @apply_bit: Register bitfield used for initiate voltage change on the + * output when using regulator_set_voltage_sel_regmap * @enable_reg: Register for control when using regmap enable/disable ops * @enable_mask: Mask for control when using regmap enable/disable ops * @@ -218,6 +222,8 @@ struct regulator_desc { unsigned int vsel_reg; unsigned int vsel_mask; + unsigned int apply_reg; + unsigned int apply_bit; unsigned int enable_reg; unsigned int enable_mask; unsigned int bypass_reg; |