WM831X_POWER_STATE
case WM831X_POWER_STATE:
wm831x_set_bits(wm831x, WM831X_POWER_STATE, WM831X_CHIP_ON, 0);
case WM831X_POWER_STATE:
ret = wm831x_set_bits(wm831x_power->wm831x, WM831X_POWER_STATE,