WM8770_DACMUTE
SOC_SINGLE("DAC Playback Switch", WM8770_DACMUTE, 4, 1, 1),
return snd_soc_component_update_bits(component, WM8770_DACMUTE, 0x10,
snd_soc_component_update_bits(component, WM8770_DACMUTE, 0x10, 0x10);