aif1_loopback_enum 1507 sound/soc/codecs/wm8994.c static SOC_ENUM_SINGLE_DECL(aif1_loopback_enum, aif1_loopback_enum 1513 sound/soc/codecs/wm8994.c SOC_DAPM_ENUM("AIF1 Loopback", aif1_loopback_enum);