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| author | Charles Keepax <ckeepax@opensource.wolfsonmicro.com> | 2016-05-13 16:45:16 +0100 |
|---|---|---|
| committer | Mark Brown <broonie@kernel.org> | 2016-05-30 16:14:59 +0100 |
| commit | 97126ce8ce8d6f023b8ce3b71c3df882a2951605 (patch) | |
| tree | c2bc4c7601c8f008d604c2812013edca98e1e876 /sound/soc/codecs/arizona.c | |
| parent | 9fc772eca1d94b84dfc235e7643603cbe9d6e8a3 (diff) | |
| download | lwn-97126ce8ce8d6f023b8ce3b71c3df882a2951605.tar.gz lwn-97126ce8ce8d6f023b8ce3b71c3df882a2951605.zip | |
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>
Diffstat (limited to 'sound/soc/codecs/arizona.c')
| -rw-r--r-- | sound/soc/codecs/arizona.c | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/sound/soc/codecs/arizona.c b/sound/soc/codecs/arizona.c index 664a8c044ffb..a6e3881c718e 100644 --- a/sound/soc/codecs/arizona.c +++ b/sound/soc/codecs/arizona.c @@ -810,6 +810,14 @@ const struct soc_enum arizona_output_anc_src[] = { }; EXPORT_SYMBOL_GPL(arizona_output_anc_src); +const struct snd_kcontrol_new arizona_voice_trigger_switch[] = { + SOC_DAPM_SINGLE("Switch", SND_SOC_NOPM, 0, 1, 0), + SOC_DAPM_SINGLE("Switch", SND_SOC_NOPM, 1, 1, 0), + SOC_DAPM_SINGLE("Switch", SND_SOC_NOPM, 2, 1, 0), + SOC_DAPM_SINGLE("Switch", SND_SOC_NOPM, 3, 1, 0), +}; +EXPORT_SYMBOL_GPL(arizona_voice_trigger_switch); + static void arizona_in_set_vu(struct snd_soc_codec *codec, int ena) { struct arizona_priv *priv = snd_soc_codec_get_drvdata(codec); |