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authorAxel Lin <axel.lin@gmail.com>2012-03-23 10:51:14 +0800
committerMark Brown <broonie@opensource.wolfsonmicro.com>2012-04-01 11:59:28 +0100
commit24c896f5482d864f526ce3d085eb90298b82c49f (patch)
tree75c1883a6a87012e71b8986bcbbe80a4e62f3213 /drivers/regulator/lp3972.c
parentdd8e2314b0e8955f7f97c10536799886ee3f4487 (diff)
downloadlinux-24c896f5482d864f526ce3d085eb90298b82c49f.tar.bz2
regulator: Convert lp3972 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/lp3972.c')
-rw-r--r--drivers/regulator/lp3972.c63
1 files changed, 18 insertions, 45 deletions
diff --git a/drivers/regulator/lp3972.c b/drivers/regulator/lp3972.c
index 49a15eefe5fe..4f28d36600a5 100644
--- a/drivers/regulator/lp3972.c
+++ b/drivers/regulator/lp3972.c
@@ -245,6 +245,11 @@ static int lp3972_set_bits(struct lp3972 *lp3972, u8 reg, u16 mask, u16 val)
static int lp3972_ldo_list_voltage(struct regulator_dev *dev, unsigned index)
{
int ldo = rdev_get_id(dev) - LP3972_LDO1;
+
+ if (index < LP3972_LDO_VOL_MIN_IDX(ldo) ||
+ index > LP3972_LDO_VOL_MAX_IDX(ldo))
+ return -EINVAL;
+
return 1000 * LP3972_LDO_VOL_VALUE_MAP(ldo)[index];
}
@@ -292,34 +297,16 @@ static int lp3972_ldo_get_voltage(struct regulator_dev *dev)
return 1000 * LP3972_LDO_VOL_VALUE_MAP(ldo)[val];
}
-static int lp3972_ldo_set_voltage(struct regulator_dev *dev,
- int min_uV, int max_uV,
- unsigned int *selector)
+static int lp3972_ldo_set_voltage_sel(struct regulator_dev *dev,
+ unsigned int selector)
{
struct lp3972 *lp3972 = rdev_get_drvdata(dev);
int ldo = rdev_get_id(dev) - LP3972_LDO1;
- int min_vol = min_uV / 1000, max_vol = max_uV / 1000;
- const int *vol_map = LP3972_LDO_VOL_VALUE_MAP(ldo);
- u16 val;
int shift, ret;
- if (min_vol < vol_map[LP3972_LDO_VOL_MIN_IDX(ldo)] ||
- min_vol > vol_map[LP3972_LDO_VOL_MAX_IDX(ldo)])
- return -EINVAL;
-
- for (val = LP3972_LDO_VOL_MIN_IDX(ldo);
- val <= LP3972_LDO_VOL_MAX_IDX(ldo); val++)
- if (vol_map[val] >= min_vol)
- break;
-
- if (val > LP3972_LDO_VOL_MAX_IDX(ldo) || vol_map[val] > max_vol)
- return -EINVAL;
-
- *selector = val;
-
shift = LP3972_LDO_VOL_CONTR_SHIFT(ldo);
ret = lp3972_set_bits(lp3972, LP3972_LDO_VOL_CONTR_REG(ldo),
- LP3972_LDO_VOL_MASK(ldo) << shift, val << shift);
+ LP3972_LDO_VOL_MASK(ldo) << shift, selector << shift);
if (ret)
return ret;
@@ -355,12 +342,17 @@ static struct regulator_ops lp3972_ldo_ops = {
.enable = lp3972_ldo_enable,
.disable = lp3972_ldo_disable,
.get_voltage = lp3972_ldo_get_voltage,
- .set_voltage = lp3972_ldo_set_voltage,
+ .set_voltage_sel = lp3972_ldo_set_voltage_sel,
};
static int lp3972_dcdc_list_voltage(struct regulator_dev *dev, unsigned index)
{
int buck = rdev_get_id(dev) - LP3972_DCDC1;
+
+ if (index < LP3972_BUCK_VOL_MIN_IDX(buck) ||
+ index > LP3972_BUCK_VOL_MAX_IDX(buck))
+ return -EINVAL;
+
return 1000 * buck_voltage_map[buck][index];
}
@@ -419,34 +411,15 @@ static int lp3972_dcdc_get_voltage(struct regulator_dev *dev)
return val;
}
-static int lp3972_dcdc_set_voltage(struct regulator_dev *dev,
- int min_uV, int max_uV,
- unsigned int *selector)
+static int lp3972_dcdc_set_voltage_sel(struct regulator_dev *dev,
+ unsigned int selector)
{
struct lp3972 *lp3972 = rdev_get_drvdata(dev);
int buck = rdev_get_id(dev) - LP3972_DCDC1;
- int min_vol = min_uV / 1000, max_vol = max_uV / 1000;
- const int *vol_map = buck_voltage_map[buck];
- u16 val;
int ret;
- if (min_vol < vol_map[LP3972_BUCK_VOL_MIN_IDX(buck)] ||
- min_vol > vol_map[LP3972_BUCK_VOL_MAX_IDX(buck)])
- return -EINVAL;
-
- for (val = LP3972_BUCK_VOL_MIN_IDX(buck);
- val <= LP3972_BUCK_VOL_MAX_IDX(buck); val++)
- if (vol_map[val] >= min_vol)
- break;
-
- if (val > LP3972_BUCK_VOL_MAX_IDX(buck) ||
- vol_map[val] > max_vol)
- return -EINVAL;
-
- *selector = val;
-
ret = lp3972_set_bits(lp3972, LP3972_BUCK_VOL1_REG(buck),
- LP3972_BUCK_VOL_MASK, val);
+ LP3972_BUCK_VOL_MASK, selector);
if (ret)
return ret;
@@ -468,7 +441,7 @@ static struct regulator_ops lp3972_dcdc_ops = {
.enable = lp3972_dcdc_enable,
.disable = lp3972_dcdc_disable,
.get_voltage = lp3972_dcdc_get_voltage,
- .set_voltage = lp3972_dcdc_set_voltage,
+ .set_voltage_sel = lp3972_dcdc_set_voltage_sel,
};
static struct regulator_desc regulators[] = {