diff options
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/regulator/core.c | 44 |
1 files changed, 44 insertions, 0 deletions
diff --git a/drivers/regulator/core.c b/drivers/regulator/core.c index bca1e59..02d2e15 100644 --- a/drivers/regulator/core.c +++ b/drivers/regulator/core.c @@ -1838,6 +1838,50 @@ int regulator_is_supported_voltage(struct regulator *regulator, } EXPORT_SYMBOL_GPL(regulator_is_supported_voltage); +/** + * regulator_get_voltage_sel_regmap - standard get_voltage_sel for regmap users + * + * @rdev: regulator to operate on + * + * Regulators that use regmap for their register I/O can set the + * vsel_reg and vsel_mask fields in their descriptor and then use this + * as their get_voltage_vsel operation, saving some code. + */ +int regulator_get_voltage_sel_regmap(struct regulator_dev *rdev) +{ + unsigned int val; + int ret; + + ret = regmap_read(rdev->regmap, rdev->desc->vsel_reg, &val); + if (ret != 0) + return ret; + + val &= rdev->desc->vsel_mask; + val >>= ffs(rdev->desc->vsel_mask) - 1; + + return val; +} +EXPORT_SYMBOL_GPL(regulator_get_voltage_sel_regmap); + +/** + * regulator_set_voltage_sel_regmap - standard set_voltage_sel for regmap users + * + * @rdev: regulator to operate on + * @sel: Selector to set + * + * Regulators that use regmap for their register I/O can set the + * vsel_reg and vsel_mask fields in their descriptor and then use this + * as their set_voltage_vsel operation, saving some code. + */ +int regulator_set_voltage_sel_regmap(struct regulator_dev *rdev, unsigned sel) +{ + sel <<= ffs(rdev->desc->vsel_mask) - 1; + + return regmap_update_bits(rdev->regmap, rdev->desc->vsel_reg, + rdev->desc->vsel_mask, sel); +} +EXPORT_SYMBOL_GPL(regulator_set_voltage_sel_regmap); + static int _regulator_do_set_voltage(struct regulator_dev *rdev, int min_uV, int max_uV) { |