[PATCH 5.17 0923/1126] ASoC: rt5682s: Fix the wrong jack type detected

Greg Kroah-Hartman
2022-04-05T10:08:21Z

From: Derek Fang <derek.fang@realtek.com>

[ Upstream commit c07ac3ee76e5e5506bca9c03fbbb15e40ab28430 ]

Some powers were changed during the jack insert detection and clk's
enable/disable in CCF.
If in parallel, the influence has a chance to detect the wrong jack
type.

We refer to the below commit of the variant codec (rt5682) to fix
this issue.
ASoC: rt5682: Fix deadlock on resume

1. Remove rt5682s_headset_detect in rt5682s_jd_check_handler and
use jack_detect_work instead of.
2. Use dapm mutex used in CCF to protect most of jack_detect_work.

Signed-off-by: Derek Fang <derek.fang@realtek.com>
Link: https://lore.kernel.org/r/20220223101450.4577-1-derek.fang@realtek.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
sound/soc/codecs/rt5682s.c | 26 +++++++++-----------------
sound/soc/codecs/rt5682s.h | 1 -
2 files changed, 9 insertions(+), 18 deletions(-)

diff --git a/sound/soc/codecs/rt5682s.c b/sound/soc/codecs/rt5682s.c
index 1e662d1be2b3..92b8753f1267 100644
--- a/sound/soc/codecs/rt5682s.c
+++ b/sound/soc/codecs/rt5682s.c
@@ -822,6 +822,7 @@ static void rt5682s_jack_detect_handler(struct work_struct *work)
{
struct rt5682s_priv *rt5682s =
container_of(work, struct rt5682s_priv, jack_detect_work.work);
+ struct snd_soc_dapm_context *dapm;
int val, btn_type;

if (!rt5682s->component || !rt5682s->component->card ||
@@ -832,7 +833,9 @@ static void rt5682s_jack_detect_handler(struct work_struct *work)
return;
}

- mutex_lock(&rt5682s->jdet_mutex);
+ dapm = snd_soc_component_get_dapm(rt5682s->component);
+
+ snd_soc_dapm_mutex_lock(dapm);
mutex_lock(&rt5682s->calibrate_mutex);

val = snd_soc_component_read(rt5682s->component, RT5682S_AJD1_CTRL)
@@ -889,6 +892,9 @@ static void rt5682s_jack_detect_handler(struct work_struct *work)
rt5682s->irq_work_delay_time = 50;
}

+ mutex_unlock(&rt5682s->calibrate_mutex);
+ snd_soc_dapm_mutex_unlock(dapm);
+
snd_soc_jack_report(rt5682s->hs_jack, rt5682s->jack_type,
SND_JACK_HEADSET | SND_JACK_BTN_0 | SND_JACK_BTN_1 |
SND_JACK_BTN_2 | SND_JACK_BTN_3);
@@ -898,9 +904,6 @@ static void rt5682s_jack_detect_handler(struct work_struct *work)
schedule_delayed_work(&rt5682s->jd_check_work, 0);
else
cancel_delayed_work_sync(&rt5682s->jd_check_work);
-
- mutex_unlock(&rt5682s->calibrate_mutex);
- mutex_unlock(&rt5682s->jdet_mutex);
}

static void rt5682s_jd_check_handler(struct work_struct *work)
@@ -908,14 +911,9 @@ static void rt5682s_jd_check_handler(struct work_struct *work)
struct rt5682s_priv *rt5682s =
container_of(work, struct rt5682s_priv, jd_check_work.work);

- if (snd_soc_component_read(rt5682s->component, RT5682S_AJD1_CTRL)
- & RT5682S_JDH_RS_MASK) {
+ if (snd_soc_component_read(rt5682s->component, RT5682S_AJD1_CTRL) & RT5682S_JDH_RS_MASK) {
/* jack out */
- rt5682s->jack_type = rt5682s_headset_detect(rt5682s->component, 0);
-
- snd_soc_jack_report(rt5682s->hs_jack, rt5682s->jack_type,
- SND_JACK_HEADSET | SND_JACK_BTN_0 | SND_JACK_BTN_1 |
- SND_JACK_BTN_2 | SND_JACK_BTN_3);
+ schedule_delayed_work(&rt5682s->jack_detect_work, 0);
} else {
schedule_delayed_work(&rt5682s->jd_check_work, 500);
}
@@ -1323,7 +1321,6 @@ static int rt5682s_hp_amp_event(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 rt5682s_priv *rt5682s = snd_soc_component_get_drvdata(component);

switch (event) {
case SND_SOC_DAPM_POST_PMU:
@@ -1339,8 +1336,6 @@ static int rt5682s_hp_amp_event(struct snd_soc_dapm_widget *w,
snd_soc_component_write(component, RT5682S_BIAS_CUR_CTRL_11, 0x6666);
snd_soc_component_write(component, RT5682S_BIAS_CUR_CTRL_12, 0xa82a);

- mutex_lock(&rt5682s->jdet_mutex);
-
snd_soc_component_update_bits(component, RT5682S_HP_CTRL_2,
RT5682S_HPO_L_PATH_MASK | RT5682S_HPO_R_PATH_MASK |
RT5682S_HPO_SEL_IP_EN_SW, RT5682S_HPO_L_PATH_EN |
@@ -1348,8 +1343,6 @@ static int rt5682s_hp_amp_event(struct snd_soc_dapm_widget *w,
usleep_range(5000, 10000);
snd_soc_component_update_bits(component, RT5682S_HP_AMP_DET_CTL_1,
RT5682S_CP_SW_SIZE_MASK, RT5682S_CP_SW_SIZE_L | RT5682S_CP_SW_SIZE_S);
-
- mutex_unlock(&rt5682s->jdet_mutex);
break;

case SND_SOC_DAPM_POST_PMD:
@@ -3103,7 +3096,6 @@ static int rt5682s_i2c_probe(struct i2c_client *i2c,

mutex_init(&rt5682s->calibrate_mutex);
mutex_init(&rt5682s->sar_mutex);
- mutex_init(&rt5682s->jdet_mutex);
rt5682s_calibrate(rt5682s);

regmap_update_bits(rt5682s->regmap, RT5682S_MICBIAS_2,
diff --git a/sound/soc/codecs/rt5682s.h b/sound/soc/codecs/rt5682s.h
index 1bf2ef7ce578..397a2531b6f6 100644
--- a/sound/soc/codecs/rt5682s.h
+++ b/sound/soc/codecs/rt5682s.h
@@ -1446,7 +1446,6 @@ struct rt5682s_priv {
struct delayed_work jd_check_work;
struct mutex calibrate_mutex;
struct mutex sar_mutex;
- struct mutex jdet_mutex;

#ifdef CONFIG_COMMON_CLK
struct clk_hw dai_clks_hw[RT5682S_DAI_NUM_CLKS];
--
2.34.1