WM8750_LOUT2V
SOC_DOUBLE_R("Speaker Playback ZC Switch", WM8750_LOUT2V,
SOC_DOUBLE_R("Speaker Playback Volume", WM8750_LOUT2V, WM8750_ROUT2V,
snd_soc_component_update_bits(component, WM8750_LOUT2V, 0x0100, 0x0100);