Unverified Commit 557270e8 authored by Shuming Fan's avatar Shuming Fan Committed by Mark Brown
Browse files

ASoC: rt5682: fix the random recording noise of headset 



The cycle time of FIFO clock should increase 2 times to avoid
the random recording noise issue.
This setting could apply to all known situations in i2s mode.

Signed-off-by: default avatarShuming Fan <shumingf@realtek.com>
Link: https://lore.kernel.org/r/20200317073308.11572-1-shumingf@realtek.com


Signed-off-by: default avatarMark Brown <broonie@kernel.org>
parent 28ddd846

sound/soc/codecs/rt5682.c

+2 −0
Original line number Diff line number Diff line
@@ -2651,6 +2651,8 @@ static int rt5682_i2c_probe(struct i2c_client *i2c, 
			RT5682_CP_CLK_HP_MASK, RT5682_CP_CLK_HP_300KHZ);

	regmap_update_bits(rt5682->regmap, RT5682_HP_CHARGE_PUMP_1,

			RT5682_PM_HP_MASK, RT5682_PM_HP_HV);

	regmap_update_bits(rt5682->regmap, RT5682_DMIC_CTRL_1,

			RT5682_FIFO_CLK_DIV_MASK, RT5682_FIFO_CLK_DIV_2);



	INIT_DELAYED_WORK(&rt5682->jack_detect_work,

				rt5682_jack_detect_handler);

sound/soc/codecs/rt5682.h

+2 −0
Original line number Diff line number Diff line
@@ -651,6 +651,8 @@ 
#define RT5682_DMIC_1_EN_SFT			15

#define RT5682_DMIC_1_DIS			(0x0 << 15)

#define RT5682_DMIC_1_EN			(0x1 << 15)

#define RT5682_FIFO_CLK_DIV_MASK		(0x7 << 12)

#define RT5682_FIFO_CLK_DIV_2			(0x1 << 12)

#define RT5682_DMIC_1_DP_MASK			(0x3 << 4)

#define RT5682_DMIC_1_DP_SFT			4

#define RT5682_DMIC_1_DP_GPIO2			(0x0 << 4)

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