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ASoC: nau8825: fix issue that pop noise when start capture

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In skylake platform, we hear a loud pop noise(0 dB) at start of
audio capture power up sequence. This patch removes the pop noise
from the recording by adding a delay before enabling ADC.

Signed-off-by: Abhijeet Kumar <abhijeet.kumar@intel.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
This commit is contained in:
Abhijeet Kumar 2017-12-12 00:40:25 +05:30 committed by Mark Brown
parent 4fbd8d194f
commit d070f7c703
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1 changed files with 1 additions and 0 deletions
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sound/soc/codecs/nau8825.c
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@ -905,6 +905,7 @@ static int nau8825_adc_event(struct snd_soc_dapm_widget *w,
switch (event) {
case SND_SOC_DAPM_POST_PMU:
msleep(125);
regmap_update_bits(nau8825->regmap, NAU8825_REG_ENA_CTRL,
NAU8825_ENABLE_ADC, NAU8825_ENABLE_ADC);
break;