From 97126ce8ce8d6f023b8ce3b71c3df882a2951605 Mon Sep 17 00:00:00 2001 From: Charles Keepax <ckeepax@opensource.wolfsonmicro.com> Date: Fri, 13 May 2016 16:45:16 +0100 Subject: ASoC: arizona: Add voice trigger output widget In some situations the voice control firmware will by used to only provide a trigger notification event. In this case a compressed stream will not be opened by user-space, as such we need to provide a virtual output to power on the DSP in this use-case. This patch adds a virtual output 'DSP Voice Trigger' that can be used for this, and a switch that lets it be connected to the core when required. Signed-off-by: Charles Keepax <ckeepax@opensource.wolfsonmicro.com> Signed-off-by: Mark Brown <broonie@kernel.org> --- sound/soc/codecs/arizona.h | 2 ++ 1 file changed, 2 insertions(+) (limited to 'sound/soc/codecs/arizona.h') diff --git a/sound/soc/codecs/arizona.h b/sound/soc/codecs/arizona.h index ce0531b8c632..02d836cb5fb1 100644 --- a/sound/soc/codecs/arizona.h +++ b/sound/soc/codecs/arizona.h @@ -248,6 +248,8 @@ extern const struct soc_enum arizona_anc_input_src[]; extern const struct soc_enum arizona_anc_ng_enum; extern const struct soc_enum arizona_output_anc_src[]; +extern const struct snd_kcontrol_new arizona_voice_trigger_switch[]; + extern int arizona_in_ev(struct snd_soc_dapm_widget *w, struct snd_kcontrol *kcontrol, int event); -- cgit v1.2.1