Patch "ASoC: soc-dai: add flag to mute and unmute stream during trigger" has been added to the 6.5-stable tree

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This is a note to let you know that I've just added the patch titled

    ASoC: soc-dai: add flag to mute and unmute stream during trigger

to the 6.5-stable tree which can be found at:
    http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary

The filename of the patch is:
     asoc-soc-dai-add-flag-to-mute-and-unmute-stream-during-trigger.patch
and it can be found in the queue-6.5 subdirectory.

If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.


>From stable+bounces-27-greg=kroah.com@xxxxxxxxxxxxxxx Thu Nov 23 09:48:30 2023
From: Johan Hovold <johan+linaro@xxxxxxxxxx>
Date: Thu, 23 Nov 2023 10:47:48 +0100
Subject: ASoC: soc-dai: add flag to mute and unmute stream during trigger
To: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
Cc: Sasha Levin <sashal@xxxxxxxxxx>, Mark Brown <broonie@xxxxxxxxxx>, Liam Girdwood <lgirdwood@xxxxxxxxx>, Jaroslav Kysela <perex@xxxxxxxx>, Takashi Iwai <tiwai@xxxxxxxx>, Srinivas Kandagatla <srinivas.kandagatla@xxxxxxxxxx>, linux-sound@xxxxxxxxxxxxxxx, stable@xxxxxxxxxxxxxxx, linux-kernel@xxxxxxxxxxxxxxx, Johan Hovold <johan+linaro@xxxxxxxxxx>
Message-ID: <20231123094749.20462-2-johan+linaro@xxxxxxxxxx>

From: Johan Hovold <johan+linaro@xxxxxxxxxx>

From: Srinivas Kandagatla <srinivas.kandagatla@xxxxxxxxxx>

commit f0220575e65abe09c09cd17826a3cdea76e8d58f upstream.

In some setups like Speaker amps which are very sensitive, ex: keeping them
unmute without actual data stream for very short duration results in a
static charge and results in pop and clicks. To minimize this, provide a way
to mute and unmute such codecs during trigger callbacks.

Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@xxxxxxxxxx>
Tested-by: Johan Hovold <johan+linaro@xxxxxxxxxx>
Link: https://lore.kernel.org/r/20231027105747.32450-2-srinivas.kandagatla@xxxxxxxxxx
Signed-off-by: Mark Brown <broonie@xxxxxxxxxx>
[ johan: backport to v6.6.2 ]
Signed-off-by: Johan Hovold <johan+linaro@xxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
 include/sound/soc-dai.h |    1 +
 sound/soc/soc-dai.c     |    7 +++++++
 sound/soc/soc-pcm.c     |   12 ++++++++----
 3 files changed, 16 insertions(+), 4 deletions(-)

--- a/include/sound/soc-dai.h
+++ b/include/sound/soc-dai.h
@@ -355,6 +355,7 @@ struct snd_soc_dai_ops {
 
 	/* bit field */
 	unsigned int no_capture_mute:1;
+	unsigned int mute_unmute_on_trigger:1;
 };
 
 struct snd_soc_cdai_ops {
--- a/sound/soc/soc-dai.c
+++ b/sound/soc/soc-dai.c
@@ -641,6 +641,10 @@ int snd_soc_pcm_dai_trigger(struct snd_p
 			ret = soc_dai_trigger(dai, substream, cmd);
 			if (ret < 0)
 				break;
+
+			if (dai->driver->ops && dai->driver->ops->mute_unmute_on_trigger)
+				snd_soc_dai_digital_mute(dai, 0, substream->stream);
+
 			soc_dai_mark_push(dai, substream, trigger);
 		}
 		break;
@@ -651,6 +655,9 @@ int snd_soc_pcm_dai_trigger(struct snd_p
 			if (rollback && !soc_dai_mark_match(dai, substream, trigger))
 				continue;
 
+			if (dai->driver->ops && dai->driver->ops->mute_unmute_on_trigger)
+				snd_soc_dai_digital_mute(dai, 1, substream->stream);
+
 			r = soc_dai_trigger(dai, substream, cmd);
 			if (r < 0)
 				ret = r; /* use last ret */
--- a/sound/soc/soc-pcm.c
+++ b/sound/soc/soc-pcm.c
@@ -896,8 +896,10 @@ static int __soc_pcm_prepare(struct snd_
 	snd_soc_dapm_stream_event(rtd, substream->stream,
 			SND_SOC_DAPM_STREAM_START);
 
-	for_each_rtd_dais(rtd, i, dai)
-		snd_soc_dai_digital_mute(dai, 0, substream->stream);
+	for_each_rtd_dais(rtd, i, dai) {
+		if (dai->driver->ops && !dai->driver->ops->mute_unmute_on_trigger)
+			snd_soc_dai_digital_mute(dai, 0, substream->stream);
+	}
 
 out:
 	return soc_pcm_ret(rtd, ret);
@@ -939,8 +941,10 @@ static int soc_pcm_hw_clean(struct snd_s
 		if (snd_soc_dai_active(dai) == 1)
 			soc_pcm_set_dai_params(dai, NULL);
 
-		if (snd_soc_dai_stream_active(dai, substream->stream) == 1)
-			snd_soc_dai_digital_mute(dai, 1, substream->stream);
+		if (snd_soc_dai_stream_active(dai, substream->stream) == 1) {
+			if (dai->driver->ops && !dai->driver->ops->mute_unmute_on_trigger)
+				snd_soc_dai_digital_mute(dai, 1, substream->stream);
+		}
 	}
 
 	/* run the stream event */


Patches currently in stable-queue which might be from kroah.com@xxxxxxxxxxxxxxx are

queue-6.5/asoc-soc-dai-add-flag-to-mute-and-unmute-stream-during-trigger.patch
queue-6.5/asoc-codecs-wsa883x-make-use-of-new-mute_unmute_on_trigger-flag.patch



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