3.16.79-rc1 review patch. If anyone has any objections, please let me know. ------------------ From: Jean-Michel Hautbois <jhautbois@xxxxxxxxx> 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@xxxxxxxxxxxx> Signed-off-by: Mark Brown <broonie@xxxxxxxxxx> Signed-off-by: Ben Hutchings <ben@xxxxxxxxxxxxxxx> --- 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: