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ASoC: arizona: Automatically manage input mutes

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For optimal performance the inputs should be kept muted until after power
up. Since there are few use cases for muting inputs during capture move
the mutes to automatic control.

Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
This commit is contained in:
Mark Brown
2013-02-06 16:57:29 +00:00
parent 699ba4546c
commit 43cd8bf1c8
3 changed files with 17 additions and 30 deletions
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17
sound/soc/codecs/arizona.c
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@@ -335,6 +335,23 @@ EXPORT_SYMBOL_GPL(arizona_ng_hold);
int arizona_in_ev(struct snd_soc_dapm_widget *w, struct snd_kcontrol *kcontrol,
int event)
{
unsigned int reg;
if (w->shift % 2)
reg = ARIZONA_ADC_DIGITAL_VOLUME_1L + ((w->shift / 2) * 8);
else
reg = ARIZONA_ADC_DIGITAL_VOLUME_1R + ((w->shift / 2) * 8);
switch (event) {
case SND_SOC_DAPM_POST_PMU:
snd_soc_update_bits(w->codec, reg, ARIZONA_IN1L_MUTE, 0);
break;
case SND_SOC_DAPM_PRE_PMD:
snd_soc_update_bits(w->codec, reg, ARIZONA_IN1L_MUTE,
ARIZONA_IN1L_MUTE);
break;
}
return 0;
}
EXPORT_SYMBOL_GPL(arizona_in_ev);