WM8400_LEFT_LINE_INPUT_1_2_VOLUME
reg = snd_soc_component_read(component, WM8400_LEFT_LINE_INPUT_1_2_VOLUME);
snd_soc_component_write(component, WM8400_LEFT_LINE_INPUT_1_2_VOLUME,
WM8400_LEFT_LINE_INPUT_1_2_VOLUME,
SOC_SINGLE("LIN12 ZC Switch", WM8400_LEFT_LINE_INPUT_1_2_VOLUME,
SOC_SINGLE("LIN12 Mute Switch", WM8400_LEFT_LINE_INPUT_1_2_VOLUME,