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ASoC: rt5682: improve the sensitivity of push button 

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>
This commit is contained in:
Shuming Fan 2019-10-30 16:55:33 +08:00 committed by Mark Brown
parent e9904ed5e7
commit e226445802
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GPG Key ID: 24D68B725D5487D0
2 changed files with 16 additions and 0 deletions
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1
include/sound/rt5682.h
View File

@ -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

15
sound/soc/codecs/rt5682.c
View File

@ -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);