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authorCharles Keepax <ckeepax@opensource.wolfsonmicro.com>2016-05-13 16:45:16 +0100
committerMark Brown <broonie@kernel.org>2016-05-30 16:14:59 +0100
commit97126ce8ce8d6f023b8ce3b71c3df882a2951605 (patch)
treec2bc4c7601c8f008d604c2812013edca98e1e876 /sound/soc/codecs/cs47l24.c
parent9fc772eca1d94b84dfc235e7643603cbe9d6e8a3 (diff)
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/cs47l24.c')
-rw-r--r--sound/soc/codecs/cs47l24.c9
1 files changed, 9 insertions, 0 deletions
diff --git a/sound/soc/codecs/cs47l24.c b/sound/soc/codecs/cs47l24.c
index 23a14be1e6a6..af681f8792bb 100644
--- a/sound/soc/codecs/cs47l24.c
+++ b/sound/soc/codecs/cs47l24.c
@@ -359,6 +359,11 @@ SND_SOC_DAPM_INPUT("IN2R"),
SND_SOC_DAPM_OUTPUT("DRC1 Signal Activity"),
SND_SOC_DAPM_OUTPUT("DRC2 Signal Activity"),
+SND_SOC_DAPM_OUTPUT("DSP Voice Trigger"),
+
+SND_SOC_DAPM_SWITCH("DSP3 Voice Trigger", SND_SOC_NOPM, 2, 0,
+ &arizona_voice_trigger_switch[2]),
+
SND_SOC_DAPM_PGA_E("IN1L PGA", ARIZONA_INPUT_ENABLES, ARIZONA_IN1L_ENA_SHIFT,
0, NULL, 0, arizona_in_ev,
SND_SOC_DAPM_PRE_PMD | SND_SOC_DAPM_POST_PMD |
@@ -905,6 +910,10 @@ static const struct snd_soc_dapm_route cs47l24_dapm_routes[] = {
{ "DRC1 Signal Activity", NULL, "DRC1R" },
{ "DRC2 Signal Activity", NULL, "DRC2L" },
{ "DRC2 Signal Activity", NULL, "DRC2R" },
+
+ { "DSP Voice Trigger", NULL, "SYSCLK" },
+ { "DSP Voice Trigger", NULL, "DSP3 Voice Trigger" },
+ { "DSP3 Voice Trigger", "Switch", "DSP3" },
};
static int cs47l24_set_fll(struct snd_soc_codec *codec, int fll_id, int source,