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From: <shumingf@realtek.com>
To: <broonie@kernel.org>, <lgirdwood@gmail.com>
Cc: oder_chiou@realtek.com, jack.yu@realtek.com,
	alsa-devel@alsa-project.org, lars@metafoo.de,
	derek.fang@realtek.com, bard.liao@intel.com,
	Shuming Fan <shumingf@realtek.com>,
	flove@realtek.com, pierre-louis.bossart@intel.com
Subject: [PATCH] ASoC: rt711: mutex between calibration and power state changes
Date: Thu, 17 Dec 2020 16:56:51 +0800	[thread overview]
Message-ID: <20201217085651.24580-1-shumingf@realtek.com> (raw)

From: Shuming Fan <shumingf@realtek.com>

To avoid calibration time-out, this patch adds the mutex between calibration and power state changes

Signed-off-by: Shuming Fan <shumingf@realtek.com>
---
 sound/soc/codecs/rt711.c | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/sound/soc/codecs/rt711.c b/sound/soc/codecs/rt711.c
index 5771c02c3459..85f744184a60 100644
--- a/sound/soc/codecs/rt711.c
+++ b/sound/soc/codecs/rt711.c
@@ -462,6 +462,8 @@ static int rt711_set_amp_gain_put(struct snd_kcontrol *kcontrol,
 	unsigned int read_ll, read_rl;
 	int i;
 
+	mutex_lock(&rt711->calibrate_mutex);
+
 	/* Can't use update bit function, so read the original value first */
 	addr_h = mc->reg;
 	addr_l = mc->rreg;
@@ -547,6 +549,8 @@ static int rt711_set_amp_gain_put(struct snd_kcontrol *kcontrol,
 	if (dapm->bias_level <= SND_SOC_BIAS_STANDBY)
 		regmap_write(rt711->regmap,
 				RT711_SET_AUDIO_POWER_STATE, AC_PWRST_D3);
+
+	mutex_unlock(&rt711->calibrate_mutex);
 	return 0;
 }
 
@@ -859,9 +863,11 @@ static int rt711_set_bias_level(struct snd_soc_component *component,
 		break;
 
 	case SND_SOC_BIAS_STANDBY:
+		mutex_lock(&rt711->calibrate_mutex);
 		regmap_write(rt711->regmap,
 			RT711_SET_AUDIO_POWER_STATE,
 			AC_PWRST_D3);
+		mutex_unlock(&rt711->calibrate_mutex);
 		break;
 
 	default:
-- 
2.29.0


             reply	other threads:[~2020-12-17  8:58 UTC|newest]

Thread overview: 2+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-12-17  8:56 shumingf [this message]
2020-12-18 12:16 ` [PATCH] ASoC: rt711: mutex between calibration and power state changes Mark Brown

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