I still need to figure out prefixing multiple instances of this Amplifier controls with "Left" and "Right"
FWIW we use the "snd_codec_conf" stuff to add a prefix for each amplifier, so that the controls are not mixed up between instances of the same amp, see e.g.
static struct snd_soc_codec_conf codec_conf[] = { { .dev_name = "sdw:0:25d:711:0:1", .name_prefix = "rt711", }, { .dev_name = "sdw:1:25d:1308:0:0", .name_prefix = "rt1308-1", }, { .dev_name = "sdw:2:25d:1308:0:2", .name_prefix = "rt1308-2", }, { .dev_name = "sdw:3:25d:715:0:1", .name_prefix = "rt715", }, }; https://github.com/thesofproject/linux/pull/1142/commits/9ff9cf9d8994333df2250641c95431261bc66d69#diff-892560f80d603420baec7395e0b45d81R212