[PATCH] ASoC: rt5645: Remove the redundant delay time

[PATCH] ASoC: rt5645: Remove the redundant delay time

[Oder Chiou]

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>
---
 sound/soc/codecs/rt5645.c | 33 ++++++++-------------------------
 1 file changed, 8 insertions(+), 25 deletions(-)

diff --git a/sound/soc/codecs/rt5645.c b/sound/soc/codecs/rt5645.c
index 420003d062c7..1c9e61abda30 100644
--- a/sound/soc/codecs/rt5645.c
+++ b/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[] = {
-- 
2.29.0

Re: [PATCH] ASoC: rt5645: Remove the redundant delay time

[Mark Brown]

On Wed, 30 Dec 2020 16:02:35 +0800, Oder Chiou wrote:
> This patch removes the redundant delay time to speed up from the cold start
> of headphone playback.

Applied to

   https://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound.git for-next

Thanks!

[1/1] ASoC: rt5645: Remove the redundant delay time
      commit: e9141c1aaa72782b9de7b224cd184a809aa4a87f

All being well this means that it will be integrated into the linux-next
tree (usually sometime in the next 24 hours) and sent to Linus during
the next merge window (or sooner if it is a bug fix), however if
problems are discovered then the patch may be dropped or reverted.

You may get further e-mails resulting from automated or manual testing
and review of the tree, please engage with people reporting problems and
send followup patches addressing any issues that are reported if needed.

If any updates are required or you are submitting further changes they
should be sent as incremental updates against current git, existing
patches will not be replaced.

Please add any relevant lists and maintainers to the CCs when replying
to this mail.

Thanks,
Mark