[PATCH AUTOSEL 6.6 13/47] ASoC: rt5650: add mutex to avoid the jack detection failure

Sasha Levin
2023-12-11T13:53:01Z

From: Shuming Fan <shumingf@realtek.com>

[ Upstream commit cdba4301adda7c60a2064bf808e48fccd352aaa9 ]

This patch adds the jd_mutex to protect the jack detection control flow.
And only the headset type could check the button status.

Signed-off-by: Shuming Fan <shumingf@realtek.com>
Link: https://lore.kernel.org/r/20231122100123.2831753-1-shumingf@realtek.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
sound/soc/codecs/rt5645.c | 10 +++++++++-
1 file changed, 9 insertions(+), 1 deletion(-)

diff --git a/sound/soc/codecs/rt5645.c b/sound/soc/codecs/rt5645.c
index 7938b52d741d8..a0d01d71d8b56 100644
--- a/sound/soc/codecs/rt5645.c
+++ b/sound/soc/codecs/rt5645.c
@@ -448,6 +448,7 @@ struct rt5645_priv {
struct regulator_bulk_data supplies[ARRAY_SIZE(rt5645_supply_names)];
struct rt5645_eq_param_s *eq_param;
struct timer_list btn_check_timer;
+ struct mutex jd_mutex;

int codec_type;
int sysclk;
@@ -3193,6 +3194,8 @@ static int rt5645_jack_detect(struct snd_soc_component *component, int jack_inse
rt5645_enable_push_button_irq(component, true);
}
} else {
+ if (rt5645->en_button_func)
+ rt5645_enable_push_button_irq(component, false);
snd_soc_dapm_disable_pin(dapm, "Mic Det Power");
snd_soc_dapm_sync(dapm);
rt5645->jack_type = SND_JACK_HEADPHONE;
@@ -3295,6 +3298,8 @@ static void rt5645_jack_detect_work(struct work_struct *work)
if (!rt5645->component)
return;

+ mutex_lock(&rt5645->jd_mutex);
+
switch (rt5645->pdata.jd_mode) {
case 0: /* Not using rt5645 JD */
if (rt5645->gpiod_hp_det) {
@@ -3321,7 +3326,7 @@ static void rt5645_jack_detect_work(struct work_struct *work)

if (!val && (rt5645->jack_type == 0)) { /* jack in */
report = rt5645_jack_detect(rt5645->component, 1);
- } else if (!val && rt5645->jack_type != 0) {
+ } else if (!val && rt5645->jack_type == SND_JACK_HEADSET) {
/* for push button and jack out */
btn_type = 0;
if (snd_soc_component_read(rt5645->component, RT5645_INT_IRQ_ST) & 0x4) {
@@ -3377,6 +3382,8 @@ static void rt5645_jack_detect_work(struct work_struct *work)
rt5645_jack_detect(rt5645->component, 0);
}

+ mutex_unlock(&rt5645->jd_mutex);
+
snd_soc_jack_report(rt5645->hp_jack, report, SND_JACK_HEADPHONE);
snd_soc_jack_report(rt5645->mic_jack, report, SND_JACK_MICROPHONE);
if (rt5645->en_button_func)
@@ -4150,6 +4157,7 @@ static int rt5645_i2c_probe(struct i2c_client *i2c)
}
timer_setup(&rt5645->btn_check_timer, rt5645_btn_check_callback, 0);

+ mutex_init(&rt5645->jd_mutex);
INIT_DELAYED_WORK(&rt5645->jack_detect_work, rt5645_jack_detect_work);
INIT_DELAYED_WORK(&rt5645->rcclock_work, rt5645_rcclock_work);

--
2.42.0