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authorJean-Michel Hautbois <jhautbois@gmail.com>2015-12-17 11:07:23 +0100
committerMark Brown <broonie@kernel.org>2015-12-17 12:13:40 +0000
commitc803cc2dcd722e08020c1ba63bb5ceece4a19fdb (patch)
tree5251111ff7bacd76b1a858af27478cf58ea15f2c
parent8005c49d9aea74d382f474ce11afbbc7d7130bec (diff)
downloadleg-kernel-c803cc2dcd722e08020c1ba63bb5ceece4a19fdb.tar.gz
ASoC: sgtl5000: fix VAG power up timing
When power up, a "pop" is heard on line-in and mic-in. An analysis of the PCM shows it lasts ~400ms and looks like a filter response. VAG power up should be delayed by 400ms as VAG power down is. Signed-off-by: Jean-Michel Hautbois <jean-michel.hautbois@veo-labs.com> Signed-off-by: Mark Brown <broonie@kernel.org>
-rw-r--r--sound/soc/codecs/sgtl5000.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/sound/soc/codecs/sgtl5000.c b/sound/soc/codecs/sgtl5000.c
index f540f82b1f27..08b40460663c 100644
--- a/sound/soc/codecs/sgtl5000.c
+++ b/sound/soc/codecs/sgtl5000.c
@@ -189,6 +189,7 @@ static int power_vag_event(struct snd_soc_dapm_widget *w,
case SND_SOC_DAPM_POST_PMU:
snd_soc_update_bits(codec, SGTL5000_CHIP_ANA_POWER,
SGTL5000_VAG_POWERUP, SGTL5000_VAG_POWERUP);
+ msleep(400);
break;
case SND_SOC_DAPM_PRE_PMD: