[PATCH 3.19 113/177] ALSA: hda - Disable runtime PM for Panther Point again

From: Greg Kroah-Hartman
Date: Mon Mar 16 2015 - 11:41:12 EST


3.19-stable review patch. If anyone has any objections, please let me know.

------------------

From: Takashi Iwai <tiwai@xxxxxxx>

commit de5d0ad506cb10ab143e2ffb9def7607e3671f83 upstream.

This is essentially a partial revert of the commit [b1920c21102a:
'ALSA: hda - Enable runtime PM on Panther Point']. There was a bug
report showing the HD-audio bus hang during runtime PM on HP Spectre
XT.

Reported-by: Dang Sananikone <dang.sananikone@xxxxxxxxx>
Signed-off-by: Takashi Iwai <tiwai@xxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>

---
sound/pci/hda/hda_intel.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

--- a/sound/pci/hda/hda_intel.c
+++ b/sound/pci/hda/hda_intel.c
@@ -2004,7 +2004,7 @@ static const struct pci_device_id azx_id
.driver_data = AZX_DRIVER_PCH | AZX_DCAPS_INTEL_PCH_NOPM },
/* Panther Point */
{ PCI_DEVICE(0x8086, 0x1e20),
- .driver_data = AZX_DRIVER_PCH | AZX_DCAPS_INTEL_PCH },
+ .driver_data = AZX_DRIVER_PCH | AZX_DCAPS_INTEL_PCH_NOPM },
/* Lynx Point */
{ PCI_DEVICE(0x8086, 0x8c20),
.driver_data = AZX_DRIVER_PCH | AZX_DCAPS_INTEL_PCH },


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