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authorKai-Heng Feng <kai.heng.feng@canonical.com>2021-01-19 23:21:43 +0800
committerTakashi Iwai <tiwai@suse.de>2021-01-19 16:42:39 +0100
commit2b73649cee65b8e33c75c66348cb1bfe0ff9d766 (patch)
tree3209fade0d94351251037eaaf98e6fd2e35d8574 /sound
parentc23010ffb20acb02a1d41dc025131609916ed633 (diff)
ALSA: hda: Balance runtime/system PM if direct-complete is disabled
After hibernation, HDA controller can't be runtime-suspended after commit 215a22ed31a1 ("ALSA: hda: Refactor codjc PM to use direct-complete optimization"), which enables direct-complete for HDA codec. The HDA codec driver didn't expect direct-complete will be disabled after it returns a positive value from prepare() callback. However, there are some places that PM core can disable direct-complete. For instance, system hibernation or when codec has subordinates like LEDs. So if the codec is prepared for direct-complete but PM core still calls codec's suspend or freeze callback, partially revert the commit and take the original approach, which uses pm_runtime_force_*() helpers to ensure PM refcount are balanced. Meanwhile, still keep prepare() and complete() callbacks to enable direct-complete and request a resume for jack detection, respectively. Reported-by: Kenneth R. Crudup <kenny@panix.com> Fixes: 215a22ed31a1 ("ALSA: hda: Refactor codec PM to use direct-complete optimization") Signed-off-by: Kai-Heng Feng <kai.heng.feng@canonical.com> Link: https://lore.kernel.org/r/20210119152145.346558-1-kai.heng.feng@canonical.com Signed-off-by: Takashi Iwai <tiwai@suse.de>
Diffstat (limited to 'sound')
-rw-r--r--sound/pci/hda/hda_codec.c24
1 files changed, 7 insertions, 17 deletions
diff --git a/sound/pci/hda/hda_codec.c b/sound/pci/hda/hda_codec.c
index 687216e74526..eec1775dfffe 100644
--- a/sound/pci/hda/hda_codec.c
+++ b/sound/pci/hda/hda_codec.c
@@ -2934,7 +2934,7 @@ static void hda_call_codec_resume(struct hda_codec *codec)
snd_hdac_leave_pm(&codec->core);
}
-static int hda_codec_suspend(struct device *dev)
+static int hda_codec_runtime_suspend(struct device *dev)
{
struct hda_codec *codec = dev_to_hda_codec(dev);
unsigned int state;
@@ -2953,7 +2953,7 @@ static int hda_codec_suspend(struct device *dev)
return 0;
}
-static int hda_codec_resume(struct device *dev)
+static int hda_codec_runtime_resume(struct device *dev)
{
struct hda_codec *codec = dev_to_hda_codec(dev);
@@ -2968,16 +2968,6 @@ static int hda_codec_resume(struct device *dev)
return 0;
}
-static int hda_codec_runtime_suspend(struct device *dev)
-{
- return hda_codec_suspend(dev);
-}
-
-static int hda_codec_runtime_resume(struct device *dev)
-{
- return hda_codec_resume(dev);
-}
-
#endif /* CONFIG_PM */
#ifdef CONFIG_PM_SLEEP
@@ -2998,31 +2988,31 @@ static void hda_codec_pm_complete(struct device *dev)
static int hda_codec_pm_suspend(struct device *dev)
{
dev->power.power_state = PMSG_SUSPEND;
- return hda_codec_suspend(dev);
+ return pm_runtime_force_suspend(dev);
}
static int hda_codec_pm_resume(struct device *dev)
{
dev->power.power_state = PMSG_RESUME;
- return hda_codec_resume(dev);
+ return pm_runtime_force_resume(dev);
}
static int hda_codec_pm_freeze(struct device *dev)
{
dev->power.power_state = PMSG_FREEZE;
- return hda_codec_suspend(dev);
+ return pm_runtime_force_suspend(dev);
}
static int hda_codec_pm_thaw(struct device *dev)
{
dev->power.power_state = PMSG_THAW;
- return hda_codec_resume(dev);
+ return pm_runtime_force_resume(dev);
}
static int hda_codec_pm_restore(struct device *dev)
{
dev->power.power_state = PMSG_RESTORE;
- return hda_codec_resume(dev);
+ return pm_runtime_force_resume(dev);
}
#endif /* CONFIG_PM_SLEEP */