[PATCH 2/2] ASoC: rt5682: Re-detect the combo jack after resuming

[derek.fang at realtek.com]

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

Sometimes, end-users change the jack type under suspending,
so it needs to re-detect the combo jack type after resuming to
avoid any unexpected behaviors.

Signed-off-by: Derek Fang <derek.fang at realtek.com>
---
 sound/soc/codecs/rt5682-i2c.c |  1 +
 sound/soc/codecs/rt5682.c     | 23 ++++++++++++++++++++---
 sound/soc/codecs/rt5682.h     |  1 +
 3 files changed, 22 insertions(+), 3 deletions(-)

diff --git a/sound/soc/codecs/rt5682-i2c.c b/sound/soc/codecs/rt5682-i2c.c
index a30e42932cf7..fdf7d4005760 100644
--- a/sound/soc/codecs/rt5682-i2c.c
+++ b/sound/soc/codecs/rt5682-i2c.c
@@ -198,6 +198,7 @@ static int rt5682_i2c_probe(struct i2c_client *i2c,
 	}
 
 	mutex_init(&rt5682->calibrate_mutex);
+	mutex_init(&rt5682->jdet_mutex);
 	rt5682_calibrate(rt5682);
 
 	rt5682_apply_patch_list(rt5682, &i2c->dev);
diff --git a/sound/soc/codecs/rt5682.c b/sound/soc/codecs/rt5682.c
index a486ac268c33..04cb747c2b12 100644
--- a/sound/soc/codecs/rt5682.c
+++ b/sound/soc/codecs/rt5682.c
@@ -49,6 +49,7 @@ static const struct reg_sequence patch_list[] = {
 	{RT5682_CHARGE_PUMP_1, 0x0210},
 	{RT5682_HP_LOGIC_CTRL_2, 0x0007},
 	{RT5682_SAR_IL_CMD_2, 0xac00},
+	{RT5682_CBJ_CTRL_7, 0x0104},
 };
 
 void rt5682_apply_patch_list(struct rt5682_priv *rt5682, struct device *dev)
@@ -941,6 +942,10 @@ int rt5682_headset_detect(struct snd_soc_component *component, int jack_insert)
 		snd_soc_component_update_bits(component,
 			RT5682_HP_CHARGE_PUMP_1,
 			RT5682_OSW_L_MASK | RT5682_OSW_R_MASK, 0);
+		rt5682_enable_push_button_irq(component, false);
+		snd_soc_component_update_bits(component, RT5682_CBJ_CTRL_1,
+			RT5682_TRIG_JD_MASK, RT5682_TRIG_JD_LOW);
+		usleep_range(55000, 60000);
 		snd_soc_component_update_bits(component, RT5682_CBJ_CTRL_1,
 			RT5682_TRIG_JD_MASK, RT5682_TRIG_JD_HIGH);
 
@@ -1093,6 +1098,7 @@ void rt5682_jack_detect_handler(struct work_struct *work)
 	while (!rt5682->component->card->instantiated)
 		usleep_range(10000, 15000);
 
+	mutex_lock(&rt5682->jdet_mutex);
 	mutex_lock(&rt5682->calibrate_mutex);
 
 	val = snd_soc_component_read(rt5682->component, RT5682_AJD1_CTRL)
@@ -1166,6 +1172,7 @@ void rt5682_jack_detect_handler(struct work_struct *work)
 	}
 
 	mutex_unlock(&rt5682->calibrate_mutex);
+	mutex_unlock(&rt5682->jdet_mutex);
 }
 EXPORT_SYMBOL_GPL(rt5682_jack_detect_handler);
 
@@ -1515,6 +1522,7 @@ static int rt5682_hp_event(struct snd_soc_dapm_widget *w,
 {
 	struct snd_soc_component *component =
 		snd_soc_dapm_to_component(w->dapm);
+	struct rt5682_priv *rt5682 = snd_soc_component_get_drvdata(component);
 
 	switch (event) {
 	case SND_SOC_DAPM_PRE_PMU:
@@ -1526,12 +1534,17 @@ static int rt5682_hp_event(struct snd_soc_dapm_widget *w,
 			RT5682_DEPOP_1, 0x60, 0x60);
 		snd_soc_component_update_bits(component,
 			RT5682_DAC_ADC_DIG_VOL1, 0x00c0, 0x0080);
+
+		mutex_lock(&rt5682->jdet_mutex);
+
 		snd_soc_component_update_bits(component, RT5682_HP_CTRL_2,
 			RT5682_HP_C2_DAC_L_EN | RT5682_HP_C2_DAC_R_EN,
 			RT5682_HP_C2_DAC_L_EN | RT5682_HP_C2_DAC_R_EN);
 		usleep_range(5000, 10000);
 		snd_soc_component_update_bits(component, RT5682_CHARGE_PUMP_1,
 			RT5682_CP_SW_SIZE_MASK, RT5682_CP_SW_SIZE_L);
+
+		mutex_unlock(&rt5682->jdet_mutex);
 		break;
 
 	case SND_SOC_DAPM_POST_PMD:
@@ -2943,7 +2956,7 @@ static int rt5682_suspend(struct snd_soc_component *component)
 
 	cancel_delayed_work_sync(&rt5682->jack_detect_work);
 	cancel_delayed_work_sync(&rt5682->jd_check_work);
-	if (rt5682->hs_jack && rt5682->jack_type == SND_JACK_HEADSET) {
+	if (rt5682->hs_jack && (rt5682->jack_type & SND_JACK_HEADSET) == SND_JACK_HEADSET) {
 		val = snd_soc_component_read(component,
 				RT5682_CBJ_CTRL_2) & RT5682_JACK_TYPE_MASK;
 
@@ -2974,6 +2987,8 @@ static int rt5682_suspend(struct snd_soc_component *component)
 		snd_soc_component_update_bits(component, RT5682_SAR_IL_CMD_1,
 			RT5682_SAR_BUTT_DET_MASK | RT5682_SAR_BUTDET_MODE_MASK,
 			RT5682_SAR_BUTT_DET_EN | RT5682_SAR_BUTDET_POW_SAV);
+		snd_soc_component_update_bits(component, RT5682_HP_CHARGE_PUMP_1,
+			RT5682_OSW_L_MASK | RT5682_OSW_R_MASK, 0);
 	}
 
 	regcache_cache_only(rt5682->regmap, true);
@@ -2991,10 +3006,11 @@ static int rt5682_resume(struct snd_soc_component *component)
 	regcache_cache_only(rt5682->regmap, false);
 	regcache_sync(rt5682->regmap);
 
-	if (rt5682->hs_jack && rt5682->jack_type == SND_JACK_HEADSET) {
+	if (rt5682->hs_jack && (rt5682->jack_type & SND_JACK_HEADSET) == SND_JACK_HEADSET) {
 		snd_soc_component_update_bits(component, RT5682_SAR_IL_CMD_1,
 			RT5682_SAR_BUTDET_MODE_MASK | RT5682_SAR_SEL_MB1_MB2_MASK,
 			RT5682_SAR_BUTDET_POW_NORM | RT5682_SAR_SEL_MB1_MB2_AUTO);
+		usleep_range(5000, 6000);
 		snd_soc_component_update_bits(component, RT5682_CBJ_CTRL_1,
 			RT5682_MB1_PATH_MASK | RT5682_MB2_PATH_MASK,
 			RT5682_CTRL_MB1_FSM | RT5682_CTRL_MB2_FSM);
@@ -3002,8 +3018,9 @@ static int rt5682_resume(struct snd_soc_component *component)
 			RT5682_PWR_CBJ, RT5682_PWR_CBJ);
 	}
 
+	rt5682->jack_type = 0;
 	mod_delayed_work(system_power_efficient_wq,
-		&rt5682->jack_detect_work, msecs_to_jiffies(250));
+		&rt5682->jack_detect_work, msecs_to_jiffies(0));
 
 	return 0;
 }
diff --git a/sound/soc/codecs/rt5682.h b/sound/soc/codecs/rt5682.h
index d93829c35585..c917c76200ea 100644
--- a/sound/soc/codecs/rt5682.h
+++ b/sound/soc/codecs/rt5682.h
@@ -1463,6 +1463,7 @@ struct rt5682_priv {
 
 	int jack_type;
 	int irq_work_delay_time;
+	struct mutex jdet_mutex;
 };
 
 extern const char *rt5682_supply_names[RT5682_NUM_SUPPLIES];
-- 
2.17.1