linux-kernel - [PATCH v1] ASoC: soc-pcm: Fix mute and unmute control for non-dynamic DAI links

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Message-Id: <20251007023325.853640-1-mohammad.rafi.shaik@oss.qualcomm.com>
Date: Tue,  7 Oct 2025 08:03:25 +0530
From: Mohammad Rafi Shaik <mohammad.rafi.shaik@....qualcomm.com>
To: Liam Girdwood <lgirdwood@...il.com>, Mark Brown <broonie@...nel.org>,
        Jaroslav Kysela <perex@...ex.cz>, Takashi Iwai <tiwai@...e.com>,
        Srinivas Kandagatla <srini@...nel.org>
Cc: linux-sound@...r.kernel.org, linux-kernel@...r.kernel.org,
        kernel@....qualcomm.com, prasad.kumpatla@....qualcomm.com,
        ajay.nandam@....qualcomm.com, stable@...r.kernel.org
Subject: [PATCH v1] ASoC: soc-pcm: Fix mute and unmute control for non-dynamic DAI links

In setups where the same codec DAI is reused across multiple DAI
links, mute controls via `snd_soc_dai_digital_mute()` is skipped for
non-dynamic links. The trigger operations are not invoked when
`dai_link->dynamic == 0`, and mute controls is currently conditioned
only on `snd_soc_dai_mute_is_ctrled_at_trigger()`. This patch ensures
that mute and unmute is applied explicitly for non-dynamic links.

Fixes: f0220575e65a ("ASoC: soc-dai: add flag to mute and unmute stream during trigger")
Cc: stable@...r.kernel.org
Signed-off-by: Mohammad Rafi Shaik <mohammad.rafi.shaik@....qualcomm.com>
---
 sound/soc/soc-pcm.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/sound/soc/soc-pcm.c b/sound/soc/soc-pcm.c
index 2c21fd528afd..4ed829b49bc2 100644
--- a/sound/soc/soc-pcm.c
+++ b/sound/soc/soc-pcm.c
@@ -949,7 +949,7 @@ static int __soc_pcm_prepare(struct snd_soc_pcm_runtime *rtd,
 			SND_SOC_DAPM_STREAM_START);
 
 	for_each_rtd_dais(rtd, i, dai) {
-		if (!snd_soc_dai_mute_is_ctrled_at_trigger(dai))
+		if (!snd_soc_dai_mute_is_ctrled_at_trigger(dai) || !rtd->dai_link->dynamic)
 			snd_soc_dai_digital_mute(dai, 0, substream->stream);
 	}
 
@@ -1007,7 +1007,7 @@ static int soc_pcm_hw_clean(struct snd_soc_pcm_runtime *rtd,
 			soc_pcm_set_dai_params(dai, NULL);
 
 		if (snd_soc_dai_stream_active(dai, substream->stream) == 1) {
-			if (!snd_soc_dai_mute_is_ctrled_at_trigger(dai))
+			if (!snd_soc_dai_mute_is_ctrled_at_trigger(dai) || !rtd->dai_link->dynamic)
 				snd_soc_dai_digital_mute(dai, 1, substream->stream);
 		}
 	}
-- 
2.34.1