rt5659_dac_l2_enum 2012 sound/soc/codecs/rt5659.c rt5659_dac_l2_enum, RT5659_DAC_CTRL, rt5659_dac_l2_enum 2016 sound/soc/codecs/rt5659.c SOC_DAPM_ENUM("DAC L2 Source", rt5659_dac_l2_enum);