Commit 88ce27f0 authored Nov 30, 2023 by Takashi Iwai Committed by Greg Kroah-Hartman Dec 08, 2023

ALSA: hda: Disable power-save on KONTRON SinglePC

commit a337c355719c42a6c5b67e985ad753590ed844fb upstream.

It's been reported that the runtime PM on KONTRON SinglePC (PCI SSID
1734:1232) caused a stall of playback after a bunch of invocations.
(FWIW, this looks like an timing issue, and the stall happens rather
on the controller side.)

As a workaround, disable the default power-save on this platform.

Cc: <stable@vger.kernel.org>
Link: https://lore.kernel.org/r/20231130151321.9813-1-tiwai@suse.de


Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

parent 4a2d1399

sound/pci/hda/hda_intel.c

+2 −0

Original line number	Diff line number	Diff line
		@@ -2244,6 +2244,8 @@ static struct snd_pci_quirk power_save_blacklist[] = {
		SND_PCI_QUIRK(0x17aa, 0x36a7, "Lenovo C50 All in one", 0),
		/* https://bugs.launchpad.net/bugs/1821663 */
		SND_PCI_QUIRK(0x1631, 0xe017, "Packard Bell NEC IMEDIA 5204", 0),
		/* KONTRON SinglePC may cause a stall at runtime resume */
		SND_PCI_QUIRK(0x1734, 0x1232, "KONTRON SinglePC", 0),
		{}
		};
		#endif /* CONFIG_PM */