ASoC: rt5682s: Stabilize the combo jack detection

Changes:
1. Revise rt5682s_sar_power_mode and rt5682s_headset_detect to be more
   rational.
2. Manually set to the jack-unplugging state via rt5682s_headset_detect
   during going to suspend. Close unnecessary powers and prepare for
   re-detecting the CBJ during resuming.
3. Simplize rt5682s_resume.
Signed-off-by: Derek Fang <derek.fang@realtek.com>
Link: https://lore.kernel.org/r/20220307102154.26065-1-derek.fang@realtek.comSigned-off-by: Mark Brown <broonie@kernel.org>

sound/soc/codecs/rt5682s.c

@@ -644,8 +644,7 @@ enum {
 	SAR_PWR_SAVING,
 };
 
-static void rt5682s_sar_power_mode(struct snd_soc_component *component,
-				int mode, int jd_step)
+static void rt5682s_sar_power_mode(struct snd_soc_component *component, int mode)
 {
 	struct rt5682s_priv *rt5682s = snd_soc_component_get_drvdata(component);
 
@@ -675,16 +674,17 @@ static void rt5682s_sar_power_mode(struct snd_soc_component *component,
 		snd_soc_component_update_bits(component, RT5682S_CBJ_CTRL_1,
 			RT5682S_MB1_PATH_MASK | RT5682S_MB2_PATH_MASK,
 			RT5682S_CTRL_MB1_FSM | RT5682S_CTRL_MB2_FSM);
-		if (!jd_step) {
 		snd_soc_component_update_bits(component, RT5682S_SAR_IL_CMD_1,
 			RT5682S_SAR_SEL_MB1_2_CTL_MASK, RT5682S_SAR_SEL_MB1_2_AUTO);
 		usleep_range(5000, 5500);
 		snd_soc_component_update_bits(component, RT5682S_SAR_IL_CMD_1,
 			RT5682S_SAR_BUTDET_MASK | RT5682S_SAR_BUTDET_POW_MASK,
 			RT5682S_SAR_BUTDET_EN | RT5682S_SAR_BUTDET_POW_NORM);
-		}
 		break;
 	case SAR_PWR_OFF:
+		snd_soc_component_update_bits(component, RT5682S_CBJ_CTRL_1,
+			RT5682S_MB1_PATH_MASK | RT5682S_MB2_PATH_MASK,
+			RT5682S_CTRL_MB1_FSM | RT5682S_CTRL_MB2_FSM);
 		snd_soc_component_update_bits(component, RT5682S_SAR_IL_CMD_1,
 			RT5682S_SAR_BUTDET_MASK | RT5682S_SAR_BUTDET_POW_MASK |
 			RT5682S_SAR_SEL_MB1_2_CTL_MASK, RT5682S_SAR_BUTDET_DIS |
@@ -702,6 +702,10 @@ static void rt5682s_enable_push_button_irq(struct snd_soc_component *component)
 {
 	snd_soc_component_update_bits(component, RT5682S_SAR_IL_CMD_13,
 		RT5682S_SAR_SOUR_MASK, RT5682S_SAR_SOUR_BTN);
+	snd_soc_component_update_bits(component, RT5682S_SAR_IL_CMD_1,
+		RT5682S_SAR_BUTDET_MASK | RT5682S_SAR_BUTDET_POW_MASK |
+		RT5682S_SAR_SEL_MB1_2_CTL_MASK, RT5682S_SAR_BUTDET_EN |
+		RT5682S_SAR_BUTDET_POW_NORM | RT5682S_SAR_SEL_MB1_2_AUTO);
 	snd_soc_component_write(component, RT5682S_IL_CMD_1, 0x0040);
 	snd_soc_component_update_bits(component, RT5682S_4BTN_IL_CMD_2,
 		RT5682S_4BTN_IL_MASK | RT5682S_4BTN_IL_RST_MASK,
@@ -718,6 +722,10 @@ static void rt5682s_disable_push_button_irq(struct snd_soc_component *component)
 		RT5682S_4BTN_IL_MASK, RT5682S_4BTN_IL_DIS);
 	snd_soc_component_update_bits(component, RT5682S_SAR_IL_CMD_13,
 		RT5682S_SAR_SOUR_MASK, RT5682S_SAR_SOUR_TYPE);
+	snd_soc_component_update_bits(component, RT5682S_SAR_IL_CMD_1,
+		RT5682S_SAR_BUTDET_MASK | RT5682S_SAR_BUTDET_POW_MASK |
+		RT5682S_SAR_SEL_MB1_2_CTL_MASK, RT5682S_SAR_BUTDET_DIS |
+		RT5682S_SAR_BUTDET_POW_SAV | RT5682S_SAR_SEL_MB1_2_MANU);
 }
 
 /**
@@ -753,7 +761,8 @@ static int rt5682s_headset_detect(struct snd_soc_component *component, int jack_
 			RT5682S_OSW_L_DIS | RT5682S_OSW_R_DIS);
 		snd_soc_component_update_bits(component, RT5682S_SAR_IL_CMD_13,
 			RT5682S_SAR_SOUR_MASK, RT5682S_SAR_SOUR_TYPE);
-		rt5682s_sar_power_mode(component, SAR_PWR_NORMAL, 1);
+		snd_soc_component_update_bits(component, RT5682S_CBJ_CTRL_3,
+			RT5682S_CBJ_IN_BUF_MASK, RT5682S_CBJ_IN_BUF_EN);
 		snd_soc_component_update_bits(component, RT5682S_CBJ_CTRL_1,
 			RT5682S_TRIG_JD_MASK, RT5682S_TRIG_JD_LOW);
 		usleep_range(45000, 50000);
@@ -779,9 +788,8 @@ static int rt5682s_headset_detect(struct snd_soc_component *component, int jack_
 				RT5682S_FAST_OFF_MASK, RT5682S_FAST_OFF_EN);
 			snd_soc_component_update_bits(component, RT5682S_SAR_IL_CMD_1,
 				RT5682S_SAR_SEL_MB1_2_MASK, val << RT5682S_SAR_SEL_MB1_2_SFT);
-			if (!snd_soc_dapm_get_pin_status(&component->dapm, "SAR"))
-				rt5682s_sar_power_mode(component, SAR_PWR_SAVING, 1);
 			rt5682s_enable_push_button_irq(component);
+			rt5682s_sar_power_mode(component, SAR_PWR_SAVING);
 			break;
 		default:
 			jack_type = SND_JACK_HEADPHONE;
@@ -792,7 +800,7 @@ static int rt5682s_headset_detect(struct snd_soc_component *component, int jack_
 			RT5682S_OSW_L_EN | RT5682S_OSW_R_EN);
 		usleep_range(35000, 40000);
 	} else {
-		rt5682s_sar_power_mode(component, SAR_PWR_OFF, 1);
+		rt5682s_sar_power_mode(component, SAR_PWR_OFF);
 		rt5682s_disable_push_button_irq(component);
 		snd_soc_component_update_bits(component, RT5682S_CBJ_CTRL_1,
 			RT5682S_TRIG_JD_MASK, RT5682S_TRIG_JD_LOW);
@@ -1403,10 +1411,10 @@ static int sar_power_event(struct snd_soc_dapm_widget *w,
 
 	switch (event) {
 	case SND_SOC_DAPM_PRE_PMU:
-		rt5682s_sar_power_mode(component, SAR_PWR_NORMAL, 0);
+		rt5682s_sar_power_mode(component, SAR_PWR_NORMAL);
 		break;
 	case SND_SOC_DAPM_POST_PMD:
-		rt5682s_sar_power_mode(component, SAR_PWR_SAVING, 0);
+		rt5682s_sar_power_mode(component, SAR_PWR_SAVING);
 		break;
 	}
 
@@ -2835,9 +2843,8 @@ static int rt5682s_suspend(struct snd_soc_component *component)
 	cancel_delayed_work_sync(&rt5682s->jack_detect_work);
 	cancel_delayed_work_sync(&rt5682s->jd_check_work);
 
-	if (rt5682s->hs_jack && rt5682s->jack_type == SND_JACK_HEADSET)
-		snd_soc_component_update_bits(component, RT5682S_4BTN_IL_CMD_2,
-			RT5682S_4BTN_IL_MASK, RT5682S_4BTN_IL_DIS);
+	if (rt5682s->hs_jack)
+		rt5682s->jack_type = rt5682s_headset_detect(component, 0);
 
 	regcache_cache_only(rt5682s->regmap, true);
 	regcache_mark_dirty(rt5682s->regmap);
@@ -2853,8 +2860,6 @@ static int rt5682s_resume(struct snd_soc_component *component)
 	regcache_sync(rt5682s->regmap);
 
 	if (rt5682s->hs_jack) {
-		rt5682s->jack_type = 0;
-		rt5682s_sar_power_mode(component, SAR_PWR_NORMAL, 0);
 		mod_delayed_work(system_power_efficient_wq,
 			&rt5682s->jack_detect_work, msecs_to_jiffies(0));
 	}