static int wm8350_dcdc_list_voltage(struct regulator_dev *rdev,
unsigned selector)
{
if (selector > WM8350_DCDC_MAX_VSEL)
return -EINVAL;
return wm8350_dcdc_val_to_mvolts(selector) * 1000;
}
static int wm8350_dcdc_get_voltage(struct regulator_dev *rdev)
{
struct wm8350 *wm8350 = rdev_get_drvdata(rdev);
int volt_reg, dcdc = rdev_get_id(rdev);
u16 val;
switch (dcdc) {
case WM8350_DCDC_1:
volt_reg = WM8350_DCDC1_CONTROL;
break;
case WM8350_DCDC_3:
volt_reg = WM8350_DCDC3_CONTROL;
break;
case WM8350_DCDC_4:
volt_reg = WM8350_DCDC4_CONTROL;
break;
case WM8350_DCDC_6:
volt_reg = WM8350_DCDC6_CONTROL;
break;
case WM8350_DCDC_2:
case WM8350_DCDC_5:
default:
return -EINVAL;
}
/* all DCDCs have same mV bits */
val = wm8350_reg_read(wm8350, volt_reg) & WM8350_DC1_VSEL_MASK;
return wm8350_dcdc_val_to_mvolts(val) * 1000;
}
static int wm8350_dcdc_set_voltage(struct regulator_dev *rdev, int min_uV,
int max_uV, unsigned *selector)
{
struct wm8350 *wm8350 = rdev_get_drvdata(rdev);
int volt_reg, dcdc = rdev_get_id(rdev), mV,
min_mV = min_uV / 1000, max_mV = max_uV / 1000;
u16 val;
if (min_mV < 850 || min_mV > 4025)
return -EINVAL;
if (max_mV < 850 || max_mV > 4025)
return -EINVAL;
/* step size is 25mV */
mV = (min_mV - 826) / 25;
if (wm8350_dcdc_val_to_mvolts(mV) > max_mV)
return -EINVAL;
BUG_ON(wm8350_dcdc_val_to_mvolts(mV) < min_mV);
switch (dcdc) {
case WM8350_DCDC_1:
volt_reg = WM8350_DCDC1_CONTROL;
break;
case WM8350_DCDC_3:
volt_reg = WM8350_DCDC3_CONTROL;
break;
case WM8350_DCDC_4:
volt_reg = WM8350_DCDC4_CONTROL;
break;
case WM8350_DCDC_6:
volt_reg = WM8350_DCDC6_CONTROL;
break;
case WM8350_DCDC_2:
case WM8350_DCDC_5:
default:
return -EINVAL;
}
*selector = mV;
/* all DCDCs have same mV bits */
val = wm8350_reg_read(wm8350, volt_reg) & ~WM8350_DC1_VSEL_MASK;
wm8350_reg_write(wm8350, volt_reg, val | mV);
return 0;
}
