ASoC: rt5645: Remove the redundant delay time

This patch removes the redundant delay time to speed up from the cold start
of headphone playback.
Signed-off-by: Oder Chiou <oder_chiou@realtek.com>
Link: https://lore.kernel.org/r/20201230080235.12698-1-oder_chiou@realtek.comSigned-off-by: Mark Brown <broonie@kernel.org>

sound/soc/codecs/rt5645.c

@@ -435,7 +435,6 @@ struct rt5645_priv {
 
 	int jack_type;
 	bool en_button_func;
-	bool hp_on;
 	int v_id;
 };
 
@@ -1645,6 +1644,7 @@ static void hp_amp_power(struct snd_soc_component *component, int on)
 {
 	static int hp_amp_power_count;
 	struct rt5645_priv *rt5645 = snd_soc_component_get_drvdata(component);
+	int i, val;
 
 	if (on) {
 		if (hp_amp_power_count <= 0) {
@@ -1655,7 +1655,13 @@ static void hp_amp_power(struct snd_soc_component *component, int on)
 				snd_soc_component_write(component, RT5645_DEPOP_M1, 0x000d);
 				regmap_write(rt5645->regmap, RT5645_PR_BASE +
 					RT5645_HP_DCC_INT1, 0x9f01);
-				msleep(20);
+				for (i = 0; i < 20; i++) {
+					usleep_range(1000, 1500);
+					regmap_read(rt5645->regmap, RT5645_PR_BASE +
+						RT5645_HP_DCC_INT1, &val);
+					if (!(val & 0x8000))
+						break;
+				}
 				snd_soc_component_update_bits(component, RT5645_DEPOP_M1,
 					RT5645_HP_CO_MASK, RT5645_HP_CO_EN);
 				regmap_write(rt5645->regmap, RT5645_PR_BASE +
@@ -1665,7 +1671,6 @@ static void hp_amp_power(struct snd_soc_component *component, int on)
 					RT5645_MAMP_INT_REG2, 0xfc00);
 				snd_soc_component_write(component, RT5645_DEPOP_M2, 0x1140);
 				msleep(90);
-				rt5645->hp_on = true;
 			} else {
 				/* depop parameters */
 				snd_soc_component_update_bits(component, RT5645_DEPOP_M2,
@@ -1885,27 +1890,6 @@ static int rt5645_bst2_event(struct snd_soc_dapm_widget *w,
 	return 0;
 }
 
-static int rt5650_hp_event(struct snd_soc_dapm_widget *w,
-		struct snd_kcontrol *k, int  event)
-{
-	struct snd_soc_component *component = snd_soc_dapm_to_component(w->dapm);
-	struct rt5645_priv *rt5645 = snd_soc_component_get_drvdata(component);
-
-	switch (event) {
-	case SND_SOC_DAPM_POST_PMU:
-		if (rt5645->hp_on) {
-			msleep(100);
-			rt5645->hp_on = false;
-		}
-		break;
-
-	default:
-		return 0;
-	}
-
-	return 0;
-}
-
 static int rt5645_set_micbias1_event(struct snd_soc_dapm_widget *w,
 		struct snd_kcontrol *k, int  event)
 {
@@ -2242,7 +2226,6 @@ static const struct snd_soc_dapm_widget rt5645_dapm_widgets[] = {
 	SND_SOC_DAPM_OUTPUT("PDM1R"),
 	SND_SOC_DAPM_OUTPUT("SPOL"),
 	SND_SOC_DAPM_OUTPUT("SPOR"),
-	SND_SOC_DAPM_POST("DAPM_POST", rt5650_hp_event),
 };
 
 static const struct snd_soc_dapm_widget rt5645_specific_dapm_widgets[] = {