spo_switch 2355 sound/soc/codecs/rt5659.c static const struct snd_kcontrol_new spo_switch = spo_switch 2832 sound/soc/codecs/rt5659.c SND_SOC_DAPM_SWITCH("SPO Playback", SND_SOC_NOPM, 0, 0, &spo_switch),