The patch adds a property for DMIC delay (ms) to avoid pop noise and
changes the default delay setting.
Signed-off-by: Oder Chiou <oder_chiou@xxxxxxxxxxx>
---
include/sound/rt5682.h | 1 +
sound/soc/codecs/rt5682.c | 12 +++++++++++-
2 files changed, 12 insertions(+), 1 deletion(-)
diff --git a/include/sound/rt5682.h b/include/sound/rt5682.h
index 96b268ac96bd..e1f790561ac1 100644
--- a/include/sound/rt5682.h
+++ b/include/sound/rt5682.h
@@ -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];
};
diff --git a/sound/soc/codecs/rt5682.c b/sound/soc/codecs/rt5682.c
index c9e6f287424b..8cabe8bf0979 100644
--- a/sound/soc/codecs/rt5682.c
+++ b/sound/soc/codecs/rt5682.c
@@ -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",
&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);
--
2.25.1
