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authorAxel Lin <axel.lin@ingics.com>2012-12-28 04:23:16 +0400
committerMark Brown <broonie@opensource.wolfsonmicro.com>2013-01-08 15:07:05 +0400
commitc8c14a393ba3329552147870103f2d004bbcbcac (patch)
tree364a2ccd44ea20c1166a7469a5c6c73cf36a2b52 /drivers/regulator/lp3972.c
parentd1c3ed669a2d452cacfb48c2d171a1f364dae2ed (diff)
downloadlinux-c8c14a393ba3329552147870103f2d004bbcbcac.tar.xz
regulator: lp3972: Convert to get_voltage_sel
regulator_list_voltage_table() returns -EINVAL if selector >= n_voltages. Thus we don't need to check if reg is greater than LP3972_BUCK_VOL_MAX_IDX in lp3972_[ldo|dcdc]_get_voltage_sel. LP3972_BUCK_VOL_MIN_IDX and LP3972_BUCK_VOL_MAX_IDX are not used, remove them. Signed-off-by: Axel Lin <axel.lin@ingics.com> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Diffstat (limited to 'drivers/regulator/lp3972.c')
-rw-r--r--drivers/regulator/lp3972.c22
1 files changed, 6 insertions, 16 deletions
diff --git a/drivers/regulator/lp3972.c b/drivers/regulator/lp3972.c
index 69c42c318b87..0baabcfb578a 100644
--- a/drivers/regulator/lp3972.c
+++ b/drivers/regulator/lp3972.c
@@ -165,8 +165,6 @@ static const int buck_base_addr[] = {
#define LP3972_BUCK_VOL_ENABLE_REG(x) (buck_vol_enable_addr[x])
#define LP3972_BUCK_VOL1_REG(x) (buck_base_addr[x])
#define LP3972_BUCK_VOL_MASK 0x1f
-#define LP3972_BUCK_VOL_MIN_IDX(x) ((x) ? 0x01 : 0x00)
-#define LP3972_BUCK_VOL_MAX_IDX(x) ((x) ? 0x19 : 0x1f)
static int lp3972_i2c_read(struct i2c_client *i2c, char reg, int count,
u16 *dest)
@@ -257,7 +255,7 @@ static int lp3972_ldo_disable(struct regulator_dev *dev)
mask, 0);
}
-static int lp3972_ldo_get_voltage(struct regulator_dev *dev)
+static int lp3972_ldo_get_voltage_sel(struct regulator_dev *dev)
{
struct lp3972 *lp3972 = rdev_get_drvdata(dev);
int ldo = rdev_get_id(dev) - LP3972_LDO1;
@@ -267,7 +265,7 @@ static int lp3972_ldo_get_voltage(struct regulator_dev *dev)
reg = lp3972_reg_read(lp3972, LP3972_LDO_VOL_CONTR_REG(ldo));
val = (reg >> LP3972_LDO_VOL_CONTR_SHIFT(ldo)) & mask;
- return dev->desc->volt_table[val];
+ return val;
}
static int lp3972_ldo_set_voltage_sel(struct regulator_dev *dev,
@@ -314,7 +312,7 @@ static struct regulator_ops lp3972_ldo_ops = {
.is_enabled = lp3972_ldo_is_enabled,
.enable = lp3972_ldo_enable,
.disable = lp3972_ldo_disable,
- .get_voltage = lp3972_ldo_get_voltage,
+ .get_voltage_sel = lp3972_ldo_get_voltage_sel,
.set_voltage_sel = lp3972_ldo_set_voltage_sel,
};
@@ -353,24 +351,16 @@ static int lp3972_dcdc_disable(struct regulator_dev *dev)
return val;
}
-static int lp3972_dcdc_get_voltage(struct regulator_dev *dev)
+static int lp3972_dcdc_get_voltage_sel(struct regulator_dev *dev)
{
struct lp3972 *lp3972 = rdev_get_drvdata(dev);
int buck = rdev_get_id(dev) - LP3972_DCDC1;
u16 reg;
- int val;
reg = lp3972_reg_read(lp3972, LP3972_BUCK_VOL1_REG(buck));
reg &= LP3972_BUCK_VOL_MASK;
- if (reg <= LP3972_BUCK_VOL_MAX_IDX(buck))
- val = dev->desc->volt_table[reg];
- else {
- val = 0;
- dev_warn(&dev->dev, "chip reported incorrect voltage value."
- " reg = %d\n", reg);
- }
- return val;
+ return reg;
}
static int lp3972_dcdc_set_voltage_sel(struct regulator_dev *dev,
@@ -402,7 +392,7 @@ static struct regulator_ops lp3972_dcdc_ops = {
.is_enabled = lp3972_dcdc_is_enabled,
.enable = lp3972_dcdc_enable,
.disable = lp3972_dcdc_disable,
- .get_voltage = lp3972_dcdc_get_voltage,
+ .get_voltage_sel = lp3972_dcdc_get_voltage_sel,
.set_voltage_sel = lp3972_dcdc_set_voltage_sel,
};