linux-kernel - [PATCH AUTOSEL 5.15 09/26] ASoC: rt5682: fix the wrong jack type detected

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Message-Id: <20211227190327.1042326-9-sashal@kernel.org>
Date:   Mon, 27 Dec 2021 14:03:10 -0500
From:   Sasha Levin <sashal@...nel.org>
To:     linux-kernel@...r.kernel.org, stable@...r.kernel.org
Cc:     Derek Fang <derek.fang@...ltek.com>,
        Mark Brown <broonie@...nel.org>,
        Sasha Levin <sashal@...nel.org>, oder_chiou@...ltek.com,
        lgirdwood@...il.com, perex@...ex.cz, tiwai@...e.com,
        alsa-devel@...a-project.org
Subject: [PATCH AUTOSEL 5.15 09/26] ASoC: rt5682: fix the wrong jack type detected

From: Derek Fang <derek.fang@...ltek.com>

[ Upstream commit 8deb34a90f06374fd26f722c2a79e15160f66be7 ]

Some powers were changed during the jack insert detection
and clk's enable/disable in CCF.
If in parallel, the influence has a chance to detect
the wrong jack type, so add a lock.

Signed-off-by: Derek Fang <derek.fang@...ltek.com>
Link: https://lore.kernel.org/r/20211214105033.471-1-derek.fang@realtek.com
Signed-off-by: Mark Brown <broonie@...nel.org>
Signed-off-by: Sasha Levin <sashal@...nel.org>
---
 sound/soc/codecs/rt5682.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/sound/soc/codecs/rt5682.c b/sound/soc/codecs/rt5682.c
index 5ac2b1444694d..757d1362b5f48 100644
--- a/sound/soc/codecs/rt5682.c
+++ b/sound/soc/codecs/rt5682.c
@@ -927,6 +927,8 @@ int rt5682_headset_detect(struct snd_soc_component *component, int jack_insert)
 	unsigned int val, count;
 
 	if (jack_insert) {
+		snd_soc_dapm_mutex_lock(dapm);
+
 		snd_soc_component_update_bits(component, RT5682_PWR_ANLG_1,
 			RT5682_PWR_VREF2 | RT5682_PWR_MB,
 			RT5682_PWR_VREF2 | RT5682_PWR_MB);
@@ -973,6 +975,8 @@ int rt5682_headset_detect(struct snd_soc_component *component, int jack_insert)
 		snd_soc_component_update_bits(component, RT5682_MICBIAS_2,
 			RT5682_PWR_CLK25M_MASK | RT5682_PWR_CLK1M_MASK,
 			RT5682_PWR_CLK25M_PU | RT5682_PWR_CLK1M_PU);
+
+		snd_soc_dapm_mutex_unlock(dapm);
 	} else {
 		rt5682_enable_push_button_irq(component, false);
 		snd_soc_component_update_bits(component, RT5682_CBJ_CTRL_1,
-- 
2.34.1