This is a note to let you know that I've just added the patch titled
ALSA: hda: Explicitly permit using autosuspend if runtime PM is supported
to the 4.19-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:
alsa-hda-explicitly-permit-using-autosuspend-if-runt.patch
and it can be found in the queue-4.19 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
commit 638a03774f0d91a6a4c3ffed6905a09513af43e9
Author: Roy Spliet <nouveau@xxxxxxxxxx>
Date: Mon Apr 13 10:20:34 2020 +0200
ALSA: hda: Explicitly permit using autosuspend if runtime PM is supported
[ Upstream commit 3ba21113bd33d49f3c300a23fc08cf114c434995 ]
This fixes runtime PM not working after a suspend-to-RAM cycle at least for
the codec-less HDA device found on NVIDIA GPUs.
BugLink: https://bugzilla.kernel.org/show_bug.cgi?id=207043
Signed-off-by: Roy Spliet <nouveau@xxxxxxxxxx>
Link: https://lore.kernel.org/r/20200413082034.25166-7-tiwai@xxxxxxx
Signed-off-by: Takashi Iwai <tiwai@xxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
diff --git a/sound/pci/hda/hda_intel.c b/sound/pci/hda/hda_intel.c
index 72c268e887e55..ff448abb5449f 100644
--- a/sound/pci/hda/hda_intel.c
+++ b/sound/pci/hda/hda_intel.c
@@ -2475,8 +2475,10 @@ static int azx_probe_continue(struct azx *chip)
set_default_power_save(chip);
- if (azx_has_pm_runtime(chip))
+ if (azx_has_pm_runtime(chip)) {
+ pm_runtime_use_autosuspend(&pci->dev);
pm_runtime_put_autosuspend(&pci->dev);
+ }
out_free:
if ((chip->driver_caps & AZX_DCAPS_I915_POWERWELL)
