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| author | Hui Wang <hui.wang@canonical.com> | 2020-04-14 22:27:25 +0800 |
|---|---|---|
| committer | Takashi Iwai <tiwai@suse.de> | 2020-04-14 17:15:07 +0200 |
| commit | 9a6418487b566503c772cb6e7d3d44e652b019b0 (patch) | |
| tree | 37c612d928e695b7c9be9041e1ab4cc908905101 /sound | |
| parent | f8e4ae10de43fbb7ce85f79e04eca2988b6b2c40 (diff) | |
| download | lwn-9a6418487b566503c772cb6e7d3d44e652b019b0.tar.gz lwn-9a6418487b566503c772cb6e7d3d44e652b019b0.zip | |
ALSA: hda: call runtime_allow() for all hda controllers
Before the pci_driver->probe() is called, the pci subsystem calls
runtime_forbid() and runtime_get_sync() on this pci dev, so only call
runtime_put_autosuspend() is not enough to enable the runtime_pm on
this device.
For controllers with vgaswitcheroo feature, the pci/quirks.c will call
runtime_allow() for this dev, then the controllers could enter
rt_idle/suspend/resume, but for non-vgaswitcheroo controllers like
Intel hda controllers, the runtime_pm is not enabled because the
runtime_allow() is not called.
Since it is no harm calling runtime_allow() twice, here let hda
driver call runtime_allow() for all controllers. Then the runtime_pm
is enabled on all controllers after the put_autosuspend() is called.
Signed-off-by: Hui Wang <hui.wang@canonical.com>
Link: https://lore.kernel.org/r/20200414142725.6020-1-hui.wang@canonical.com
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Diffstat (limited to 'sound')
| -rw-r--r-- | sound/pci/hda/hda_intel.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/sound/pci/hda/hda_intel.c b/sound/pci/hda/hda_intel.c index 8519051a426e..a5fab12defde 100644 --- a/sound/pci/hda/hda_intel.c +++ b/sound/pci/hda/hda_intel.c @@ -2356,6 +2356,7 @@ static int azx_probe_continue(struct azx *chip) if (azx_has_pm_runtime(chip)) { pm_runtime_use_autosuspend(&pci->dev); + pm_runtime_allow(&pci->dev); pm_runtime_put_autosuspend(&pci->dev); } |