diff options
| author | Mark Brown <broonie@opensource.wolfsonmicro.com> | 2011-08-20 19:00:50 +0100 |
|---|---|---|
| committer | Mark Brown <broonie@opensource.wolfsonmicro.com> | 2011-08-22 12:37:27 +0100 |
| commit | 889c85c550ebdf8af69f5c08387fde3f6f48d10f (patch) | |
| tree | 5a2c434c268e62184b87347b2e1a6a674485e434 /sound/soc/codecs/wm8996.c | |
| parent | e3d73c1bbf08b9abd3f56293796ba7b5c15008f5 (diff) | |
ASoC: Automatically manage WM8996 MICBIAS regulating mode
For non-audio uses like accessory detection we can use a lower quality,
unregulated microphone bias, saving a little power. As the hardware can
manually enable and disable the biases we can select regulating mode
automatically with supply widgets connected to the biases.
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Acked-by: Liam Girdwood <lrg@ti.com>
Diffstat (limited to 'sound/soc/codecs/wm8996.c')
| -rw-r--r-- | sound/soc/codecs/wm8996.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/sound/soc/codecs/wm8996.c b/sound/soc/codecs/wm8996.c index ab8e9d1aaff..2a0a612a4ed 100644 --- a/sound/soc/codecs/wm8996.c +++ b/sound/soc/codecs/wm8996.c @@ -982,6 +982,8 @@ SND_SOC_DAPM_SUPPLY_S("Charge Pump", 2, WM8996_CHARGE_PUMP_1, 15, 0, cp_event, SND_SOC_DAPM_POST_PMU), SND_SOC_DAPM_SUPPLY("LDO2", WM8996_POWER_MANAGEMENT_2, 1, 0, NULL, 0), +SND_SOC_DAPM_SUPPLY("MICB1 Audio", WM8996_MICBIAS_1, 4, 1, NULL, 0), +SND_SOC_DAPM_SUPPLY("MICB2 Audio", WM8996_MICBIAS_2, 4, 1, NULL, 0), SND_SOC_DAPM_MICBIAS("MICB2", WM8996_POWER_MANAGEMENT_1, 9, 0), SND_SOC_DAPM_MICBIAS("MICB1", WM8996_POWER_MANAGEMENT_1, 8, 0), @@ -1142,7 +1144,9 @@ static const struct snd_soc_dapm_route wm8996_dapm_routes[] = { { "Charge Pump", NULL, "SYSCLK" }, { "MICB1", NULL, "LDO2" }, + { "MICB1", NULL, "MICB1 Audio" }, { "MICB2", NULL, "LDO2" }, + { "MICB2", NULL, "MICB2 Audio" }, { "IN1L PGA", NULL, "IN2LN" }, { "IN1L PGA", NULL, "IN2LP" }, |