Unverified Commit d070f7c7 authored Dec 12, 2017 by Abhijeet Kumar Committed by Mark Brown Dec 19, 2017

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



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>

parent 4fbd8d19

sound/soc/codecs/nau8825.c

+1 −0

Original line number	Diff line number	Diff line
		@@ -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;