[PATCH] ASoC: rt5682s: Fix the wrong jack type detected

[<derek.fang@realtek.com>]

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

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>
---
 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 efa1016831dd..849fcd7132a8 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;
 
 	while (!rt5682s->component)
@@ -830,7 +831,9 @@ static void rt5682s_jack_detect_handler(struct work_struct *work)
 	while (!rt5682s->component->card->instantiated)
 		usleep_range(10000, 15000);
 
-	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)
@@ -887,6 +890,9 @@ 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);
@@ -896,9 +902,6 @@ 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)
@@ -906,14 +909,9 @@ 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);
 	}
@@ -1321,7 +1319,6 @@ 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:
@@ -1337,8 +1334,6 @@ 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 |
@@ -1346,8 +1341,6 @@ 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:
@@ -3101,7 +3094,6 @@ 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];
-- 
2.17.1