From 3ba21113bd33d49f3c300a23fc08cf114c434995 Mon Sep 17 00:00:00 2001
From: Roy Spliet <nouveau@spliet.org>
Date: Mon, 13 Apr 2020 10:20:34 +0200
Subject: [PATCH] ALSA: hda: Explicitly permit using autosuspend if runtime PM is supported
Git-commit: 3ba21113bd33d49f3c300a23fc08cf114c434995
Patch-mainline: v5.7-rc2
References: bsc#1051510
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@spliet.org>
Link: https://lore.kernel.org/r/20200413082034.25166-7-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
---
sound/pci/hda/hda_intel.c | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/sound/pci/hda/hda_intel.c b/sound/pci/hda/hda_intel.c
index 02c6308502b1..8519051a426e 100644
--- a/sound/pci/hda/hda_intel.c
+++ b/sound/pci/hda/hda_intel.c
@@ -2354,8 +2354,10 @@ 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 (err < 0) {
--
2.16.4