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authorAxel Lin <axel.lin@gmail.com>2012-03-23 06:49:54 +0400
committerMark Brown <broonie@opensource.wolfsonmicro.com>2012-04-01 14:59:28 +0400
commitdd8e2314b0e8955f7f97c10536799886ee3f4487 (patch)
treeda5a5f22131cb3bbf9b91d22a92e945dba4016bd /drivers/regulator/lp3971.c
parent452534e50780697a7e1d3cf87cdfdd2b5a0d3c6b (diff)
downloadlinux-dd8e2314b0e8955f7f97c10536799886ee3f4487.tar.xz
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.c58
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[] = {