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ALSA: hda - Disable MSI for Nvidia controller

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Judging from the member of enable_msi white-list, Nvidia controller
seems to cause troubles with MSI enabled, e.g. boot hang up or other
serious issue may come up.  It's safer to disable MSI as default for
Nvidia controllers again for now.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
Cc: <stable@kernel.org>
This commit is contained in:
Takashi Iwai 2010-03-15 15:51:53 +01:00
parent b43f6e5e25
commit 80c43ed724
1 changed files with 7 additions and 0 deletions
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7
sound/pci/hda/hda_intel.c
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@ -2378,6 +2378,13 @@ static void __devinit check_msi(struct azx *chip)
"hda_intel: msi for device %04x:%04x set to %d\n",
q->subvendor, q->subdevice, q->value);
chip->msi = q->value;
return;
}
/* NVidia chipsets seem to cause troubles with MSI */
if (chip->driver_type == AZX_DRIVER_NVIDIA) {
printk(KERN_INFO "hda_intel: Disable MSI for Nvidia chipset\n");
chip->msi = 0;
}
}