cs47l90_aec2_loopback 711 sound/soc/codecs/cs47l90.c static const struct soc_enum cs47l90_aec2_loopback = cs47l90_aec2_loopback 720 sound/soc/codecs/cs47l90.c SOC_DAPM_ENUM("AEC2 Loopback", cs47l90_aec2_loopback),