The patch below does not apply to the 6.1-stable tree.
If someone wants it applied there, or to any other stable or longterm
tree, then please email the backport, including the original git commit
id to <stable@xxxxxxxxxxxxxxx>.
Possible dependencies:
cc755b4377b0 ("ASoC: SOF: keep prepare/unprepare widgets in sink path")
0ad84b11f2f8 ("ASoC: SOF: sof-audio: skip prepare/unprepare if swidget is NULL")
7d2a67e02549 ("ASoC: SOF: sof-audio: unprepare when swidget->use_count > 0")
thanks,
greg k-h
------------------ original commit in Linus's tree ------------------
>From cc755b4377b0520d594ae573497cf0824baea648 Mon Sep 17 00:00:00 2001
From: Bard Liao <yung-chuan.liao@xxxxxxxxxxxxxxx>
Date: Wed, 18 Jan 2023 12:12:55 +0200
Subject: [PATCH] ASoC: SOF: keep prepare/unprepare widgets in sink path
The existing code return when a widget doesn't need to
prepare/unprepare. This will prevent widgets in the sink path from being
prepared/unprepared.
Cc: <stable@xxxxxxxxxxxxxxx> # 6.1
Link: https://github.com/thesofproject/linux/issues/4021
Signed-off-by: Bard Liao <yung-chuan.liao@xxxxxxxxxxxxxxx>
Reviewed-by: Ranjani Sridharan <ranjani.sridharan@xxxxxxxxxxxxxxx>
Reviewed-by: Pierre-Louis Bossart <pierre-louis.bossart@xxxxxxxxxxxxxxx>
Reviewed-by: Rander Wang <rander.wang@xxxxxxxxx>
Signed-off-by: Peter Ujfalusi <peter.ujfalusi@xxxxxxxxxxxxxxx>
Link: https://lore.kernel.org/r/20230118101255.29139-4-peter.ujfalusi@xxxxxxxxxxxxxxx
Signed-off-by: Mark Brown <broonie@xxxxxxxxxx>
diff --git a/sound/soc/sof/sof-audio.c b/sound/soc/sof/sof-audio.c
index 8c114e6a23c6..ff716bfbcb67 100644
--- a/sound/soc/sof/sof-audio.c
+++ b/sound/soc/sof/sof-audio.c
@@ -271,9 +271,9 @@ sof_unprepare_widgets_in_path(struct snd_sof_dev *sdev, struct snd_soc_dapm_widg
struct snd_sof_widget *swidget = widget->dobj.private;
struct snd_soc_dapm_path *p;
- /* return if the widget is in use or if it is already unprepared */
+ /* skip if the widget is in use or if it is already unprepared */
if (!swidget || !swidget->prepared || swidget->use_count > 0)
- return;
+ goto sink_unprepare;
if (widget_ops[widget->id].ipc_unprepare)
/* unprepare the source widget */
@@ -281,6 +281,7 @@ sof_unprepare_widgets_in_path(struct snd_sof_dev *sdev, struct snd_soc_dapm_widg
swidget->prepared = false;
+sink_unprepare:
/* unprepare all widgets in the sink paths */
snd_soc_dapm_widget_for_each_sink_path(widget, p) {
if (!p->walking && p->sink->dobj.private) {
