WM8978_DAC_CONTROL
SOC_DOUBLE("DAC Inversion Switch", WM8978_DAC_CONTROL, 0, 1, 1, 0),
SOC_SINGLE("DAC 128x Oversampling Switch", WM8978_DAC_CONTROL,
snd_soc_component_update_bits(component, WM8978_DAC_CONTROL, 0x40, 0x40);
snd_soc_component_update_bits(component, WM8978_DAC_CONTROL, 0x40, 0);