summaryrefslogtreecommitdiffstats
path: root/sound
diff options
context:
space:
mode:
authorAbhijeet Kumar <abhijeet.kumar@intel.com>2017-12-11 20:10:25 +0100
committerMark Brown <broonie@kernel.org>2017-12-19 11:52:49 +0100
commitd070f7c703ef26e3db613f24206823f916272fc6 (patch)
tree3c69d011b60bd1da89a42db4558baac395791435 /sound
parentLinux 4.15-rc1 (diff)
downloadlinux-d070f7c703ef26e3db613f24206823f916272fc6.tar.xz
linux-d070f7c703ef26e3db613f24206823f916272fc6.zip
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>
Diffstat (limited to 'sound')
-rw-r--r--sound/soc/codecs/nau8825.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/sound/soc/codecs/nau8825.c b/sound/soc/codecs/nau8825.c
index 714ce17da717..e853a6dfd33b 100644
--- a/sound/soc/codecs/nau8825.c
+++ b/sound/soc/codecs/nau8825.c
@@ -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;