releases/3.19.2/alsa-hda-disable-runtime-pm-for-panther-point-again.patch

   1 From de5d0ad506cb10ab143e2ffb9def7607e3671f83 Mon Sep 17 00:00:00 2001
   2 From: Takashi Iwai <tiwai@suse.de>
   3 Date: Wed, 25 Feb 2015 07:53:31 +0100
   4 Subject: ALSA: hda - Disable runtime PM for Panther Point again
   5
   6 From: Takashi Iwai <tiwai@suse.de>
   7
   8 commit de5d0ad506cb10ab143e2ffb9def7607e3671f83 upstream.
   9
  10 This is essentially a partial revert of the commit [b1920c21102a:
  11 'ALSA: hda - Enable runtime PM on Panther Point'].  There was a bug
  12 report showing the HD-audio bus hang during runtime PM on HP Spectre
  13 XT.
  14
  15 Reported-by: Dang Sananikone <dang.sananikone@gmail.com>
  16 Signed-off-by: Takashi Iwai <tiwai@suse.de>
  17 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
  18
  19 ---
  20  sound/pci/hda/hda_intel.c |    2 +-
  21  1 file changed, 1 insertion(+), 1 deletion(-)
  22
  23 --- a/sound/pci/hda/hda_intel.c
  24 +++ b/sound/pci/hda/hda_intel.c
  25 @@ -2004,7 +2004,7 @@ static const struct pci_device_id azx_id
  26           .driver_data = AZX_DRIVER_PCH | AZX_DCAPS_INTEL_PCH_NOPM },
  27         /* Panther Point */
  28         { PCI_DEVICE(0x8086, 0x1e20),
  29 -         .driver_data = AZX_DRIVER_PCH | AZX_DCAPS_INTEL_PCH },
  30 +         .driver_data = AZX_DRIVER_PCH | AZX_DCAPS_INTEL_PCH_NOPM },
  31         /* Lynx Point */
  32         { PCI_DEVICE(0x8086, 0x8c20),
  33           .driver_data = AZX_DRIVER_PCH | AZX_DCAPS_INTEL_PCH },