forked from luck/tmp_suning_uos_patched
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>
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@ -2356,6 +2356,7 @@ static int azx_probe_continue(struct azx *chip)
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if (azx_has_pm_runtime(chip)) {
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pm_runtime_use_autosuspend(&pci->dev);
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pm_runtime_allow(&pci->dev);
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pm_runtime_put_autosuspend(&pci->dev);
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}
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