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path: root/drivers/regulator/wm831x-dcdc.c
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Diffstat (limited to 'drivers/regulator/wm831x-dcdc.c')
-rw-r--r--drivers/regulator/wm831x-dcdc.c78
1 files changed, 20 insertions, 58 deletions
diff --git a/drivers/regulator/wm831x-dcdc.c b/drivers/regulator/wm831x-dcdc.c
index 099da11e989f..7413885be01b 100644
--- a/drivers/regulator/wm831x-dcdc.c
+++ b/drivers/regulator/wm831x-dcdc.c
@@ -215,8 +215,8 @@ static int wm831x_buckv_list_voltage(struct regulator_dev *rdev,
return -EINVAL;
}
-static int wm831x_buckv_select_min_voltage(struct regulator_dev *rdev,
- int min_uV, int max_uV)
+static int wm831x_buckv_map_voltage(struct regulator_dev *rdev,
+ int min_uV, int max_uV)
{
u16 vsel;
@@ -251,20 +251,14 @@ static int wm831x_buckv_set_dvs(struct regulator_dev *rdev, int state)
return 0;
}
-static int wm831x_buckv_set_voltage(struct regulator_dev *rdev,
- int min_uV, int max_uV, unsigned *selector)
+static int wm831x_buckv_set_voltage_sel(struct regulator_dev *rdev,
+ unsigned vsel)
{
struct wm831x_dcdc *dcdc = rdev_get_drvdata(rdev);
struct wm831x *wm831x = dcdc->wm831x;
int on_reg = dcdc->base + WM831X_DCDC_ON_CONFIG;
int dvs_reg = dcdc->base + WM831X_DCDC_DVS_CONTROL;
- int vsel, ret;
-
- vsel = wm831x_buckv_select_min_voltage(rdev, min_uV, max_uV);
- if (vsel < 0)
- return vsel;
-
- *selector = vsel;
+ int ret;
/* If this value is already set then do a GPIO update if we can */
if (dcdc->dvs_gpio && dcdc->on_vsel == vsel)
@@ -315,7 +309,7 @@ static int wm831x_buckv_set_suspend_voltage(struct regulator_dev *rdev,
u16 reg = dcdc->base + WM831X_DCDC_SLEEP_CONTROL;
int vsel;
- vsel = wm831x_buckv_select_min_voltage(rdev, uV, uV);
+ vsel = wm831x_buckv_map_voltage(rdev, uV, uV);
if (vsel < 0)
return vsel;
@@ -373,9 +367,10 @@ static int wm831x_buckv_get_current_limit(struct regulator_dev *rdev)
}
static struct regulator_ops wm831x_buckv_ops = {
- .set_voltage = wm831x_buckv_set_voltage,
+ .set_voltage_sel = wm831x_buckv_set_voltage_sel,
.get_voltage_sel = wm831x_buckv_get_voltage_sel,
.list_voltage = wm831x_buckv_list_voltage,
+ .map_voltage = wm831x_buckv_map_voltage,
.set_suspend_voltage = wm831x_buckv_set_suspend_voltage,
.set_current_limit = wm831x_buckv_set_current_limit,
.get_current_limit = wm831x_buckv_get_current_limit,
@@ -599,60 +594,25 @@ static struct platform_driver wm831x_buckv_driver = {
* BUCKP specifics
*/
-static int wm831x_buckp_list_voltage(struct regulator_dev *rdev,
- unsigned selector)
-{
- if (selector <= WM831X_BUCKP_MAX_SELECTOR)
- return 850000 + (selector * 25000);
- else
- return -EINVAL;
-}
-
-static int wm831x_buckp_set_voltage_int(struct regulator_dev *rdev, int reg,
- int min_uV, int max_uV, int *selector)
+static int wm831x_buckp_set_suspend_voltage(struct regulator_dev *rdev, int uV)
{
struct wm831x_dcdc *dcdc = rdev_get_drvdata(rdev);
struct wm831x *wm831x = dcdc->wm831x;
- u16 vsel;
-
- if (min_uV <= 34000000)
- vsel = (min_uV - 850000) / 25000;
- else
- return -EINVAL;
-
- if (wm831x_buckp_list_voltage(rdev, vsel) > max_uV)
- return -EINVAL;
-
- *selector = vsel;
-
- return wm831x_set_bits(wm831x, reg, WM831X_DC3_ON_VSEL_MASK, vsel);
-}
-
-static int wm831x_buckp_set_voltage(struct regulator_dev *rdev,
- int min_uV, int max_uV,
- unsigned *selector)
-{
- struct wm831x_dcdc *dcdc = rdev_get_drvdata(rdev);
- u16 reg = dcdc->base + WM831X_DCDC_ON_CONFIG;
-
- return wm831x_buckp_set_voltage_int(rdev, reg, min_uV, max_uV,
- selector);
-}
-
-static int wm831x_buckp_set_suspend_voltage(struct regulator_dev *rdev,
- int uV)
-{
- struct wm831x_dcdc *dcdc = rdev_get_drvdata(rdev);
u16 reg = dcdc->base + WM831X_DCDC_SLEEP_CONTROL;
- unsigned selector;
+ int sel;
+
+ sel = regulator_map_voltage_linear(rdev, uV, uV);
+ if (sel < 0)
+ return sel;
- return wm831x_buckp_set_voltage_int(rdev, reg, uV, uV, &selector);
+ return wm831x_set_bits(wm831x, reg, WM831X_DC3_ON_VSEL_MASK, sel);
}
static struct regulator_ops wm831x_buckp_ops = {
- .set_voltage = wm831x_buckp_set_voltage,
+ .set_voltage_sel = regulator_set_voltage_sel_regmap,
.get_voltage_sel = regulator_get_voltage_sel_regmap,
- .list_voltage = wm831x_buckp_list_voltage,
+ .list_voltage = regulator_list_voltage_linear,
+ .map_voltage = regulator_map_voltage_linear,
.set_suspend_voltage = wm831x_buckp_set_suspend_voltage,
.is_enabled = regulator_is_enabled_regmap,
@@ -715,6 +675,8 @@ static __devinit int wm831x_buckp_probe(struct platform_device *pdev)
dcdc->desc.vsel_mask = WM831X_DC3_ON_VSEL_MASK;
dcdc->desc.enable_reg = WM831X_DCDC_ENABLE;
dcdc->desc.enable_mask = 1 << id;
+ dcdc->desc.min_uV = 850000;
+ dcdc->desc.uV_step = 25000;
config.dev = pdev->dev.parent;
if (pdata)