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authorMark Brown <broonie@opensource.wolfsonmicro.com>2012-04-15 11:29:29 +0100
committerMark Brown <broonie@opensource.wolfsonmicro.com>2012-04-15 12:07:50 +0100
commit9f29c9e30b98832d98e8f528252fe193123a7d80 (patch)
tree2077573373fff0238013d2effb5bcfe97543072b /drivers/regulator/wm8994-regulator.c
parent88c84c14cca44d9409f1733dfdecc1f473463f20 (diff)
downloadlinux-9f29c9e30b98832d98e8f528252fe193123a7d80.tar.bz2
regulator: wm8994: Convert to set_voltage_sel()
There's no need to implement set_voltage() as there is only a very small range of selectors for the regulators in the WM8994 and the voltages are not expected to vary frequently at runtime. Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Diffstat (limited to 'drivers/regulator/wm8994-regulator.c')
-rw-r--r--drivers/regulator/wm8994-regulator.c41
1 files changed, 6 insertions, 35 deletions
diff --git a/drivers/regulator/wm8994-regulator.c b/drivers/regulator/wm8994-regulator.c
index f4a62941b711..0ee81e1b6463 100644
--- a/drivers/regulator/wm8994-regulator.c
+++ b/drivers/regulator/wm8994-regulator.c
@@ -98,18 +98,11 @@ static int wm8994_ldo1_get_voltage_sel(struct regulator_dev *rdev)
return (val & WM8994_LDO1_VSEL_MASK) >> WM8994_LDO1_VSEL_SHIFT;
}
-static int wm8994_ldo1_set_voltage(struct regulator_dev *rdev,
- int min_uV, int max_uV, unsigned *s)
+static int wm8994_ldo1_set_voltage_sel(struct regulator_dev *rdev,
+ unsigned selector)
{
struct wm8994_ldo *ldo = rdev_get_drvdata(rdev);
- int selector, v;
- selector = (min_uV - 2400000) / 100000;
- v = wm8994_ldo1_list_voltage(rdev, selector);
- if (v < 0 || v > max_uV)
- return -EINVAL;
-
- *s = selector;
selector <<= WM8994_LDO1_VSEL_SHIFT;
return wm8994_set_bits(ldo->wm8994, WM8994_LDO_1,
@@ -124,7 +117,7 @@ static struct regulator_ops wm8994_ldo1_ops = {
.list_voltage = wm8994_ldo1_list_voltage,
.get_voltage_sel = wm8994_ldo1_get_voltage_sel,
- .set_voltage = wm8994_ldo1_set_voltage,
+ .set_voltage_sel = wm8994_ldo1_set_voltage_sel,
};
static int wm8994_ldo2_list_voltage(struct regulator_dev *rdev,
@@ -165,33 +158,11 @@ static int wm8994_ldo2_get_voltage_sel(struct regulator_dev *rdev)
return (val & WM8994_LDO2_VSEL_MASK) >> WM8994_LDO2_VSEL_SHIFT;
}
-static int wm8994_ldo2_set_voltage(struct regulator_dev *rdev,
- int min_uV, int max_uV, unsigned *s)
+static int wm8994_ldo2_set_voltage_sel(struct regulator_dev *rdev,
+ unsigned selector)
{
struct wm8994_ldo *ldo = rdev_get_drvdata(rdev);
- int selector, v;
-
- switch (ldo->wm8994->type) {
- case WM8994:
- selector = (min_uV - 900000) / 100000;
- break;
- case WM8958:
- selector = (min_uV - 1000000) / 100000;
- break;
- case WM1811:
- selector = (min_uV - 950000) / 100000;
- if (selector == 0)
- selector = 1;
- break;
- default:
- return -EINVAL;
- }
-
- v = wm8994_ldo2_list_voltage(rdev, selector);
- if (v < 0 || v > max_uV)
- return -EINVAL;
- *s = selector;
selector <<= WM8994_LDO2_VSEL_SHIFT;
return wm8994_set_bits(ldo->wm8994, WM8994_LDO_2,
@@ -206,7 +177,7 @@ static struct regulator_ops wm8994_ldo2_ops = {
.list_voltage = wm8994_ldo2_list_voltage,
.get_voltage_sel = wm8994_ldo2_get_voltage_sel,
- .set_voltage = wm8994_ldo2_set_voltage,
+ .set_voltage_sel = wm8994_ldo2_set_voltage_sel,
};
static const struct regulator_desc wm8994_ldo_desc[] = {