regulator: Rename s5m8767_convert_voltage to s5m8767_convert_voltage_to_sel
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>
diff --git a/drivers/regulator/s5m8767.c b/drivers/regulator/s5m8767.c
index 3592ccb..9d5d915 100644
--- a/drivers/regulator/s5m8767.c
+++ b/drivers/regulator/s5m8767.c
@@ -294,11 +294,11 @@
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 @@
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 @@
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 @@
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 @@
}
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 @@
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 @@
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 @@
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] +