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path: root/drivers/regulator/lp3972.c
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Diffstat (limited to 'drivers/regulator/lp3972.c')
-rw-r--r--drivers/regulator/lp3972.c74
1 files changed, 26 insertions, 48 deletions
diff --git a/drivers/regulator/lp3972.c b/drivers/regulator/lp3972.c
index 49a15eefe5fe..de073df7d344 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;
@@ -468,10 +441,10 @@ 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[] = {
+static const struct regulator_desc regulators[] = {
{
.name = "LDO1",
.id = LP3972_LDO1,
@@ -554,9 +527,14 @@ static int __devinit setup_regulators(struct lp3972 *lp3972,
/* Instantiate the regulators */
for (i = 0; i < pdata->num_regulators; i++) {
struct lp3972_regulator_subdev *reg = &pdata->regulators[i];
- lp3972->rdev[i] = regulator_register(&regulators[reg->id],
- lp3972->dev, reg->initdata, lp3972, NULL);
+ struct regulator_config config = { };
+ config.dev = lp3972->dev;
+ config.init_data = reg->initdata;
+ config.driver_data = lp3972;
+
+ lp3972->rdev[i] = regulator_register(&regulators[reg->id],
+ &config);
if (IS_ERR(lp3972->rdev[i])) {
err = PTR_ERR(lp3972->rdev[i]);
dev_err(lp3972->dev, "regulator init failed: %d\n",