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regulator: Rename s5m8767_convert_voltage to s5m8767_convert_voltage_to_sel

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This function finds the smallest voltage that falls within the specified range,
and then returns the selector. This rename makes the intention more clear.

Also remove unneeded local variables min_vol and max_vol in s5m8767_set_voltage
and s5m8767_set_voltage_buck.

Signed-off-by: Axel Lin <axel.lin@gmail.com>
Acked-by: Sangbeom Kim <sbkim73@samsung.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
This commit is contained in:
Axel Lin 2012-03-09 11:31:08 +08:00 committed by Mark Brown
parent 4d984d1cd8
commit 5b5e977ce7
1 changed files with 10 additions and 12 deletions
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22
drivers/regulator/s5m8767.c
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@ -294,11 +294,11 @@ static int s5m8767_get_voltage_sel(struct regulator_dev *rdev)
return val;
}
static inline int s5m8767_convert_voltage(
static int s5m8767_convert_voltage_to_sel(
const struct s5m_voltage_desc *desc,
int min_vol, int max_vol)
{
int out_vol = 0;
int selector = 0;
if (desc == NULL)
return -EINVAL;
@ -306,19 +306,18 @@ static inline int s5m8767_convert_voltage(
if (max_vol < desc->min || min_vol > desc->max)
return -EINVAL;
out_vol = (min_vol - desc->min) / desc->step;
selector = (min_vol - desc->min) / desc->step;
if (desc->min + desc->step * out_vol > max_vol)
if (desc->min + desc->step * selector > max_vol)
return -EINVAL;
return out_vol;
return selector;
}
static int s5m8767_set_voltage(struct regulator_dev *rdev,
int min_uV, int max_uV, unsigned *selector)
{
struct s5m8767_info *s5m8767 = rdev_get_drvdata(rdev);
int min_vol = min_uV, max_vol = max_uV;
const struct s5m_voltage_desc *desc;
int reg_id = rdev_get_id(rdev);
int reg, mask, ret;
@ -343,7 +342,7 @@ static int s5m8767_set_voltage(struct regulator_dev *rdev,
desc = reg_voltage_map[reg_id];
i = s5m8767_convert_voltage(desc, min_vol, max_vol);
i = s5m8767_convert_voltage_to_sel(desc, min_uV, max_uV);
if (i < 0)
return i;
@ -385,7 +384,6 @@ static int s5m8767_set_voltage_buck(struct regulator_dev *rdev,
int reg_id = rdev_get_id(rdev);
const struct s5m_voltage_desc *desc;
int new_val, old_val, i = 0;
int min_vol = min_uV, max_vol = max_uV;
if (reg_id < S5M8767_BUCK1 || reg_id > S5M8767_BUCK6)
return -EINVAL;
@ -402,7 +400,7 @@ static int s5m8767_set_voltage_buck(struct regulator_dev *rdev,
}
desc = reg_voltage_map[reg_id];
new_val = s5m8767_convert_voltage(desc, min_vol, max_vol);
new_val = s5m8767_convert_voltage_to_sel(desc, min_uV, max_uV);
if (new_val < 0)
return new_val;
@ -580,7 +578,7 @@ static __devinit int s5m8767_pmic_probe(struct platform_device *pdev)
for (i = 0; i < 8; i++) {
if (s5m8767->buck2_gpiodvs) {
s5m8767->buck2_vol[i] =
s5m8767_convert_voltage(
s5m8767_convert_voltage_to_sel(
&buck_voltage_val2,
pdata->buck2_voltage[i],
pdata->buck2_voltage[i] +
@ -589,7 +587,7 @@ static __devinit int s5m8767_pmic_probe(struct platform_device *pdev)
if (s5m8767->buck3_gpiodvs) {
s5m8767->buck3_vol[i] =
s5m8767_convert_voltage(
s5m8767_convert_voltage_to_sel(
&buck_voltage_val2,
pdata->buck3_voltage[i],
pdata->buck3_voltage[i] +
@ -598,7 +596,7 @@ static __devinit int s5m8767_pmic_probe(struct platform_device *pdev)
if (s5m8767->buck4_gpiodvs) {
s5m8767->buck4_vol[i] =
s5m8767_convert_voltage(
s5m8767_convert_voltage_to_sel(
&buck_voltage_val2,
pdata->buck4_voltage[i],
pdata->buck4_voltage[i] +