This is a note to let you know that I've just added the patch titled
ASoC: rt9120: Make dev PM runtime bind AsoC component PM
to the 6.1-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-rt9120-make-dev-pm-runtime-bind-asoc-component-pm.patch
and it can be found in the queue-6.1 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From 7161bd540eebebae2bbe8c79de25d8caf12dbf78 Mon Sep 17 00:00:00 2001
From: ChiYuan Huang <cy_huang@xxxxxxxxxxx>
Date: Thu, 29 Dec 2022 16:03:53 +0800
Subject: ASoC: rt9120: Make dev PM runtime bind AsoC component PM
From: ChiYuan Huang <cy_huang@xxxxxxxxxxx>
commit 7161bd540eebebae2bbe8c79de25d8caf12dbf78 upstream.
RT9120 uses PM runtime autosuspend to decrease the frequently on/off
spent time. This exists one case, when pcm is closed and dev PM is
waiting for autosuspend time expired to enter runtime suspend state.
At the mean time, system is going to enter suspend, dev PM runtime
suspend won't be called. It makes the rt9120 suspend consumption
current not as expected.
This patch can fix the rt9120 dev PM issue during runtime autosuspend
and system suspend by binding dev PM runtime and ASoC component PM.
Fixes: 80b949f332e3 ("ASoC: rt9120: Use pm_runtime and regcache to optimize 'pwdnn' logic")
Signed-off-by: ChiYuan Huang <cy_huang@xxxxxxxxxxx>
Link: https://lore.kernel.org/r/1672301033-3675-1-git-send-email-u0084500@xxxxxxxxx
Signed-off-by: Mark Brown <broonie@xxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
sound/soc/codecs/rt9120.c | 12 ++++++++++++
1 file changed, 12 insertions(+)
diff --git a/sound/soc/codecs/rt9120.c b/sound/soc/codecs/rt9120.c
index 644300e88b4c..fcf4fbaed3c7 100644
--- a/sound/soc/codecs/rt9120.c
+++ b/sound/soc/codecs/rt9120.c
@@ -177,8 +177,20 @@ static int rt9120_codec_probe(struct snd_soc_component *comp)
return 0;
}
+static int rt9120_codec_suspend(struct snd_soc_component *comp)
+{
+ return pm_runtime_force_suspend(comp->dev);
+}
+
+static int rt9120_codec_resume(struct snd_soc_component *comp)
+{
+ return pm_runtime_force_resume(comp->dev);
+}
+
static const struct snd_soc_component_driver rt9120_component_driver = {
.probe = rt9120_codec_probe,
+ .suspend = rt9120_codec_suspend,
+ .resume = rt9120_codec_resume,
.controls = rt9120_snd_controls,
.num_controls = ARRAY_SIZE(rt9120_snd_controls),
.dapm_widgets = rt9120_dapm_widgets,
--
2.39.0
Patches currently in stable-queue which might be from cy_huang@xxxxxxxxxxx are
queue-6.1/asoc-rt9120-make-dev-pm-runtime-bind-asoc-component-pm.patch
