static int wm8350_ldo_set_suspend_voltage(struct regulator_dev *rdev, int uV)
{
struct wm8350 *wm8350 = rdev_get_drvdata(rdev);
int sel, volt_reg, ldo = rdev_get_id(rdev);
u16 val;
dev_dbg(wm8350->dev, "%s %d mV %d\n", __func__, ldo, uV / 1000);
switch (ldo) {
case WM8350_LDO_1:
volt_reg = WM8350_LDO1_LOW_POWER;
break;
case WM8350_LDO_2:
volt_reg = WM8350_LDO2_LOW_POWER;
break;
case WM8350_LDO_3:
volt_reg = WM8350_LDO3_LOW_POWER;
break;
case WM8350_LDO_4:
volt_reg = WM8350_LDO4_LOW_POWER;
break;
default:
return -EINVAL;
}
sel = regulator_map_voltage_linear_range(rdev, uV, uV);
if (sel < 0)
return sel;
/* all LDOs have same mV bits */
val = wm8350_reg_read(wm8350, volt_reg) & ~WM8350_LDO1_VSEL_MASK;
wm8350_reg_write(wm8350, volt_reg, val | sel);
return 0;
}
static int wm831x_gp_ldo_set_suspend_voltage(struct regulator_dev *rdev,
int uV)
{
struct wm831x_ldo *ldo = rdev_get_drvdata(rdev);
struct wm831x *wm831x = ldo->wm831x;
int sel, reg = ldo->base + WM831X_LDO_SLEEP_CONTROL;
sel = regulator_map_voltage_linear_range(rdev, uV, uV);
if (sel < 0)
return sel;
return wm831x_set_bits(wm831x, reg, WM831X_LDO1_ON_VSEL_MASK, sel);
}
int rk808_set_suspend_voltage(struct regulator_dev *rdev, int uv)
{
unsigned int reg;
int sel = regulator_map_voltage_linear_range(rdev, uv, uv);
if (sel < 0)
return -EINVAL;
reg = rdev->desc->vsel_reg + RK808_SLP_REG_OFFSET;
return regmap_update_bits(rdev->regmap, reg,
rdev->desc->vsel_mask,
sel);
}
static int pm800_set_suspend_voltage(struct regulator_dev *rdev, int uv)
{
int ret, sel, rid;
struct pm800_regulator_info *info = rdev_get_drvdata(rdev);
if (!info || !info->desc.ops)
return -EINVAL;
if (!info->desc.ops->set_suspend_mode)
return 0;
/* only handle pm860 buck1 audio mode */
rid = rdev_get_id(rdev);
if ((rid != PM800_ID_BUCK1) && (rid != PM800_ID_BUCK1A))
return -EINVAL;
/*
* two steps:
* 1) set the suspend voltage to *_set_slp register
* 2) set regulator mode via set_suspend_mode() interface to enable output
*/
sel = regulator_map_voltage_linear_range(rdev, uv, uv);
if (sel < 0)
return -EINVAL;
sel <<= ffs(PM800_BUCK1_AUDIO_SET_MSK) - 1;
ret = regmap_update_bits(rdev->regmap, PM800_BUCK1_AUDIO_SET,
PM800_BUCK1_AUDIO_SET_MSK, sel);
if (ret < 0)
return -EINVAL;
/* TODO: do we need this? */
ret = pm800_set_suspend_mode(rdev, REGULATOR_MODE_IDLE);
return ret;
}
