TAS5720_VOLUME_CTRL_REG
val = snd_soc_component_read(component, TAS5720_VOLUME_CTRL_REG);
snd_soc_component_write(component, TAS5720_VOLUME_CTRL_REG, sel >> 1);
TAS5720_VOLUME_CTRL_REG, 0, 0xff, 0, tas5720_dac_tlv),