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| author | Axel Lin <axel.lin@gmail.com> | 2012-03-23 10:49:54 +0800 |
|---|---|---|
| committer | Mark Brown <broonie@opensource.wolfsonmicro.com> | 2012-04-01 11:59:28 +0100 |
| commit | dd8e2314b0e8955f7f97c10536799886ee3f4487 (patch) | |
| tree | da5a5f22131cb3bbf9b91d22a92e945dba4016bd /drivers/regulator/lp3971.c | |
| parent | 452534e50780697a7e1d3cf87cdfdd2b5a0d3c6b (diff) | |
| download | linux-rt-dd8e2314b0e8955f7f97c10536799886ee3f4487.tar.gz | |
regulator: Convert lp3971 to set_voltage_sel
Signed-off-by: Axel Lin <axel.lin@gmail.com>
Acked-By: Marek Szyprowski <m.szyprowski@samsung.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Diffstat (limited to 'drivers/regulator/lp3971.c')
| -rw-r--r-- | drivers/regulator/lp3971.c | 58 |
1 files changed, 15 insertions, 43 deletions
diff --git a/drivers/regulator/lp3971.c b/drivers/regulator/lp3971.c index 0cfabd318a59..49bcdb034895 100644 --- a/drivers/regulator/lp3971.c +++ b/drivers/regulator/lp3971.c @@ -124,6 +124,10 @@ static const int *ldo_voltage_map[] = { static int lp3971_ldo_list_voltage(struct regulator_dev *dev, unsigned index) { int ldo = rdev_get_id(dev) - LP3971_LDO1; + + if (index > LDO_VOL_MAX_IDX) + return -EINVAL; + return 1000 * LDO_VOL_VALUE_MAP(ldo)[index]; } @@ -168,32 +172,15 @@ static int lp3971_ldo_get_voltage(struct regulator_dev *dev) return 1000 * LDO_VOL_VALUE_MAP(ldo)[val]; } -static int lp3971_ldo_set_voltage(struct regulator_dev *dev, - int min_uV, int max_uV, - unsigned int *selector) +static int lp3971_ldo_set_voltage_sel(struct regulator_dev *dev, + unsigned int selector) { struct lp3971 *lp3971 = rdev_get_drvdata(dev); int ldo = rdev_get_id(dev) - LP3971_LDO1; - int min_vol = min_uV / 1000, max_vol = max_uV / 1000; - const int *vol_map = LDO_VOL_VALUE_MAP(ldo); - u16 val; - - if (min_vol < vol_map[LDO_VOL_MIN_IDX] || - min_vol > vol_map[LDO_VOL_MAX_IDX]) - return -EINVAL; - - for (val = LDO_VOL_MIN_IDX; val <= LDO_VOL_MAX_IDX; val++) - if (vol_map[val] >= min_vol) - break; - - if (val > LDO_VOL_MAX_IDX || vol_map[val] > max_vol) - return -EINVAL; - - *selector = val; return lp3971_set_bits(lp3971, LP3971_LDO_VOL_CONTR_REG(ldo), LDO_VOL_CONTR_MASK << LDO_VOL_CONTR_SHIFT(ldo), - val << LDO_VOL_CONTR_SHIFT(ldo)); + selector << LDO_VOL_CONTR_SHIFT(ldo)); } static struct regulator_ops lp3971_ldo_ops = { @@ -202,11 +189,14 @@ static struct regulator_ops lp3971_ldo_ops = { .enable = lp3971_ldo_enable, .disable = lp3971_ldo_disable, .get_voltage = lp3971_ldo_get_voltage, - .set_voltage = lp3971_ldo_set_voltage, + .set_voltage_sel = lp3971_ldo_set_voltage_sel, }; static int lp3971_dcdc_list_voltage(struct regulator_dev *dev, unsigned index) { + if (index < BUCK_TARGET_VOL_MIN_IDX || index > BUCK_TARGET_VOL_MAX_IDX) + return -EINVAL; + return 1000 * buck_voltage_map[index]; } @@ -259,33 +249,15 @@ static int lp3971_dcdc_get_voltage(struct regulator_dev *dev) return val; } -static int lp3971_dcdc_set_voltage(struct regulator_dev *dev, - int min_uV, int max_uV, - unsigned int *selector) +static int lp3971_dcdc_set_voltage_sel(struct regulator_dev *dev, + unsigned int selector) { struct lp3971 *lp3971 = rdev_get_drvdata(dev); int buck = rdev_get_id(dev) - LP3971_DCDC1; - int min_vol = min_uV / 1000, max_vol = max_uV / 1000; - const int *vol_map = buck_voltage_map; - u16 val; int ret; - if (min_vol < vol_map[BUCK_TARGET_VOL_MIN_IDX] || - min_vol > vol_map[BUCK_TARGET_VOL_MAX_IDX]) - return -EINVAL; - - for (val = BUCK_TARGET_VOL_MIN_IDX; val <= BUCK_TARGET_VOL_MAX_IDX; - val++) - if (vol_map[val] >= min_vol) - break; - - if (val > BUCK_TARGET_VOL_MAX_IDX || vol_map[val] > max_vol) - return -EINVAL; - - *selector = val; - ret = lp3971_set_bits(lp3971, LP3971_BUCK_TARGET_VOL1_REG(buck), - BUCK_TARGET_VOL_MASK, val); + BUCK_TARGET_VOL_MASK, selector); if (ret) return ret; @@ -306,7 +278,7 @@ static struct regulator_ops lp3971_dcdc_ops = { .enable = lp3971_dcdc_enable, .disable = lp3971_dcdc_disable, .get_voltage = lp3971_dcdc_get_voltage, - .set_voltage = lp3971_dcdc_set_voltage, + .set_voltage_sel = lp3971_dcdc_set_voltage_sel, }; static struct regulator_desc regulators[] = { |