3.16.79-rc1 review patch. If anyone has any objections, please let me know.
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From: Jean-Michel Hautbois jhautbois@gmail.com
commit c803cc2dcd722e08020c1ba63bb5ceece4a19fdb upstream.
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 Signed-off-by: Ben Hutchings ben@decadent.org.uk --- sound/soc/codecs/sgtl5000.c | 1 + 1 file changed, 1 insertion(+)
--- a/sound/soc/codecs/sgtl5000.c +++ b/sound/soc/codecs/sgtl5000.c @@ -175,6 +175,7 @@ static int power_vag_event(struct snd_so case SND_SOC_DAPM_POST_PMU: snd_soc_update_bits(w->codec, SGTL5000_CHIP_ANA_POWER, SGTL5000_VAG_POWERUP, SGTL5000_VAG_POWERUP); + msleep(400); break;
case SND_SOC_DAPM_PRE_PMD: