Unverified Commit 16346a3c authored by Jack Yu's avatar Jack Yu Committed by Mark Brown
Browse files

ASoC: rt715: Add power-up delay to fix dmic pop sound issue. 



Add 400ms power-up delay recommended to fix pop noise on capture.

Reviewed-by: default avatarBard Liao <yung-chuan.liao@linux.intel.com>
Reviewed-by: default avatarRander Wang <rander.wang@linux.intel.com>
Signed-off-by: default avatarJack Yu <jack.yu@realtek.com>
Signed-off-by: default avatarPierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Link: https://lore.kernel.org/r/20200925210509.83353-1-pierre-louis.bossart@linux.intel.com


Signed-off-by: default avatarMark Brown <broonie@kernel.org>
parent 3bf7b942

sound/soc/codecs/rt715.c

+1 −1
Original line number Diff line number Diff line
@@ -9,7 +9,6 @@ 
 */



#include <linux/module.h>

#include <linux/moduleparam.h>

#include <linux/kernel.h>

#include <linux/init.h>

#include <linux/delay.h>
@@ -498,6 +497,7 @@ static int rt715_set_bias_level(struct snd_soc_component *component, 
			regmap_write(rt715->regmap,

						RT715_SET_AUDIO_POWER_STATE,

						AC_PWRST_D0);

			msleep(RT715_POWER_UP_DELAY_MS);

		}

		break;

sound/soc/codecs/rt715.h

+2 −0
Original line number Diff line number Diff line
@@ -210,6 +210,8 @@ enum { 
	RT715_AIFS,

};



#define RT715_POWER_UP_DELAY_MS 400



int rt715_io_init(struct device *dev, struct sdw_slave *slave);

int rt715_init(struct device *dev, struct regmap *sdw_regmap,

	struct regmap *regmap, struct sdw_slave *slave);