Unverified Commit 8b15ee0b authored by Oder Chiou's avatar Oder Chiou Committed by Mark Brown
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ASoC: rt5682: Add a property for DMIC delay 



The patch adds a property for DMIC delay (ms) to avoid pop noise and
changes the default delay setting.

Signed-off-by: default avatarOder Chiou <oder_chiou@realtek.com>
Link: https://lore.kernel.org/r/20200323082547.7898-2-oder_chiou@realtek.com


Signed-off-by: default avatarMark Brown <broonie@kernel.org>
parent 9a74c44a

include/sound/rt5682.h

+1 −0
Original line number Diff line number Diff line
@@ -39,6 +39,7 @@ struct rt5682_platform_data { 
	enum rt5682_jd_src jd_src;

	unsigned int btndet_delay;

	unsigned int dmic_clk_rate;

	unsigned int dmic_delay;



	const char *dai_clk_names[RT5682_DAI_NUM_CLKS];

};

sound/soc/codecs/rt5682.c

+11 −1
Original line number Diff line number Diff line
@@ -1544,10 +1544,18 @@ static int rt5682_hp_event(struct snd_soc_dapm_widget *w, 
static int set_dmic_power(struct snd_soc_dapm_widget *w,

	struct snd_kcontrol *kcontrol, int event)

{

	struct snd_soc_component *component =

		snd_soc_dapm_to_component(w->dapm);

	struct rt5682_priv *rt5682 = snd_soc_component_get_drvdata(component);

	unsigned int delay = 50;



	if (rt5682->pdata.dmic_delay)

		delay = rt5682->pdata.dmic_delay;



	switch (event) {

	case SND_SOC_DAPM_POST_PMU:

		/*Add delay to avoid pop noise*/

		msleep(150);

		msleep(delay);

		break;



	default:
@@ -3236,6 +3244,8 @@ static int rt5682_parse_dt(struct rt5682_priv *rt5682, struct device *dev) 
		&rt5682->pdata.btndet_delay);

	device_property_read_u32(dev, "realtek,dmic-clk-rate-hz",

		&rt5682->pdata.dmic_clk_rate);

	device_property_read_u32(dev, "realtek,dmic-delay-ms",

		&rt5682->pdata.dmic_delay);



	rt5682->pdata.ldo1_en = of_get_named_gpio(dev->of_node,

		"realtek,ldo1-en-gpios", 0);