From e226445802cb2a51c3cb127fac31fba0a4330e87 Mon Sep 17 00:00:00 2001
From: Shuming Fan <shumingf@realtek.com>
Date: Wed, 30 Oct 2019 16:55:33 +0800
Subject: [PATCH] ASoC: rt5682: improve the sensitivity of push button
Git-commit: e226445802cb2a51c3cb127fac31fba0a4330e87
Patch-mainline: v5.5-rc1
References: jsc#SLE-16518
The sensitivity could improve by decreasing the HW debounce time
and reduce the delay time of workequeue.
This patch added a device property for HW debounce time control.
We could change this value to tune the sensitivity of push button.
Signed-off-by: Shuming Fan <shumingf@realtek.com>
Link: https://lore.kernel.org/r/20191030085533.14299-1-shumingf@realtek.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Acked-by: Takashi Iwai <tiwai@suse.de>
---
include/sound/rt5682.h | 1 +
sound/soc/codecs/rt5682.c | 15 +++++++++++++++
2 files changed, 16 insertions(+)
diff --git a/include/sound/rt5682.h b/include/sound/rt5682.h
index bf2ee75aabb1..bc2c31734df1 100644
--- a/include/sound/rt5682.h
+++ b/include/sound/rt5682.h
@@ -31,6 +31,7 @@ struct rt5682_platform_data {
enum rt5682_dmic1_data_pin dmic1_data_pin;
enum rt5682_dmic1_clk_pin dmic1_clk_pin;
enum rt5682_jd_src jd_src;
+ unsigned int btndet_delay;
};
#endif
diff --git a/sound/soc/codecs/rt5682.c b/sound/soc/codecs/rt5682.c
index c50b75ce82e0..35dcec135c8a 100644
--- a/sound/soc/codecs/rt5682.c
+++ b/sound/soc/codecs/rt5682.c
@@ -44,6 +44,7 @@ static const struct rt5682_platform_data i2s_default_platform_data = {
.dmic1_data_pin = RT5682_DMIC1_DATA_GPIO2,
.dmic1_clk_pin = RT5682_DMIC1_CLK_GPIO3,
.jd_src = RT5682_JD1,
+ .btndet_delay = 16,
};
struct rt5682_priv {
@@ -1026,6 +1027,18 @@ static int rt5682_set_jack_detect(struct snd_soc_component *component,
regmap_update_bits(rt5682->regmap, RT5682_IRQ_CTRL_2,
RT5682_JD1_EN_MASK | RT5682_JD1_POL_MASK,
RT5682_JD1_EN | RT5682_JD1_POL_NOR);
+ regmap_update_bits(rt5682->regmap, RT5682_4BTN_IL_CMD_4,
+ 0x7f7f, (rt5682->pdata.btndet_delay << 8 |
+ rt5682->pdata.btndet_delay));
+ regmap_update_bits(rt5682->regmap, RT5682_4BTN_IL_CMD_5,
+ 0x7f7f, (rt5682->pdata.btndet_delay << 8 |
+ rt5682->pdata.btndet_delay));
+ regmap_update_bits(rt5682->regmap, RT5682_4BTN_IL_CMD_6,
+ 0x7f7f, (rt5682->pdata.btndet_delay << 8 |
+ rt5682->pdata.btndet_delay));
+ regmap_update_bits(rt5682->regmap, RT5682_4BTN_IL_CMD_7,
+ 0x7f7f, (rt5682->pdata.btndet_delay << 8 |
+ rt5682->pdata.btndet_delay));
mod_delayed_work(system_power_efficient_wq,
&rt5682->jack_detect_work, msecs_to_jiffies(250));
break;
@@ -2467,6 +2480,8 @@ static int rt5682_parse_dt(struct rt5682_priv *rt5682, struct device *dev)
&rt5682->pdata.dmic1_clk_pin);
device_property_read_u32(dev, "realtek,jd-src",
&rt5682->pdata.jd_src);
+ device_property_read_u32(dev, "realtek,btndet-delay",
+ &rt5682->pdata.btndet_delay);
rt5682->pdata.ldo1_en = of_get_named_gpio(dev->of_node,
"realtek,ldo1-en-gpios", 0);
--
2.16.4