diff options
| author | Abhijeet Kumar <abhijeet.kumar@intel.com> | 2017-12-12 00:40:25 +0530 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2018-03-03 10:23:22 +0100 |
| commit | 1ec97b2a4475e6157ec84b2a5d14530861badd0c (patch) | |
| tree | 13aba1972861bca92a23e4cfb7ed17f2d63bf636 | |
| parent | 90f7d14cef9bd30214dd7e56fc3c7a468cef6228 (diff) | |
ASoC: nau8825: fix issue that pop noise when start capture
[ Upstream commit d070f7c703ef26e3db613f24206823f916272fc6 ]
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>
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| -rw-r--r-- | sound/soc/codecs/nau8825.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/sound/soc/codecs/nau8825.c b/sound/soc/codecs/nau8825.c index f9f2737c4ad2..a4871c4adcb0 100644 --- a/sound/soc/codecs/nau8825.c +++ b/sound/soc/codecs/nau8825.c @@ -882,6 +882,7 @@ 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; |