This is a note to let you know that I've just added the patch titled
ASoC: SOF: reset enabled_cores state at suspend
to the 5.12-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-sof-reset-enabled_cores-state-at-suspend.patch
and it can be found in the queue-5.12 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From b640e8a4bd24e17ce24a064d704aba14831651a8 Mon Sep 17 00:00:00 2001
From: Kai Vehmanen <kai.vehmanen@xxxxxxxxxxxxxxx>
Date: Fri, 28 May 2021 17:43:30 +0300
Subject: ASoC: SOF: reset enabled_cores state at suspend
From: Kai Vehmanen <kai.vehmanen@xxxxxxxxxxxxxxx>
commit b640e8a4bd24e17ce24a064d704aba14831651a8 upstream.
The recent changes to use common code to power up/down DSP cores also
removed the reset of the core state at suspend. It turns out this is
still needed. When the firmware state is reset to
SOF_FW_BOOT_NOT_STARTED, also enabled_cores should be reset, and
existing DSP drivers depend on this.
BugLink: https://github.com/thesofproject/linux/issues/2824
Fixes: 42077f08b3 ("ASoC: SOF: update dsp core power status in common APIs")
Signed-off-by: Kai Vehmanen <kai.vehmanen@xxxxxxxxxxxxxxx>
Reviewed-by: Pierre-Louis Bossart <pierre-louis.bossart@xxxxxxxxxxxxxxx>
Reviewed-by: Ranjani Sridharan <ranjani.sridharan@xxxxxxxxxxxxxxx>
Link: https://lore.kernel.org/r/20210528144330.2551-1-kai.vehmanen@xxxxxxxxxxxxxxx
Signed-off-by: Mark Brown <broonie@xxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
sound/soc/sof/pm.c | 1 +
1 file changed, 1 insertion(+)
--- a/sound/soc/sof/pm.c
+++ b/sound/soc/sof/pm.c
@@ -256,6 +256,7 @@ suspend:
/* reset FW state */
sdev->fw_state = SOF_FW_BOOT_NOT_STARTED;
+ sdev->enabled_cores_mask = 0;
return ret;
}
Patches currently in stable-queue which might be from kai.vehmanen@xxxxxxxxxxxxxxx are
queue-5.12/asoc-sof-reset-enabled_cores-state-at-suspend.patch
