diff options
Diffstat (limited to 'drivers/regulator')
| -rw-r--r-- | drivers/regulator/wm831x-dcdc.c | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/drivers/regulator/wm831x-dcdc.c b/drivers/regulator/wm831x-dcdc.c index 95249f7..2c5d54b 100644 --- a/drivers/regulator/wm831x-dcdc.c +++ b/drivers/regulator/wm831x-dcdc.c @@ -491,6 +491,20 @@ static __devinit void wm831x_buckv_dvs_init(struct wm831x_dcdc *dcdc, return; } + /* If DVS_VSEL is set to the minimum value then raise it to ON_VSEL + * to make bootstrapping a bit smoother. + */ + if (!dcdc->dvs_vsel) { + ret = wm831x_set_bits(wm831x, + dcdc->base + WM831X_DCDC_DVS_CONTROL, + WM831X_DC1_DVS_VSEL_MASK, dcdc->on_vsel); + if (ret == 0) + dcdc->dvs_vsel = dcdc->on_vsel; + else + dev_warn(wm831x->dev, "Failed to set DVS_VSEL: %d\n", + ret); + } + ret = wm831x_set_bits(wm831x, dcdc->base + WM831X_DCDC_DVS_CONTROL, WM831X_DC1_DVS_SRC_MASK, ctrl); if (ret < 0) { |