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ALSA: hda - Terradici HDA controllers does not support 64-bit mode

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Confirmed from vendor and tests in RedHat bugzilla #536782 .

Signed-off-by: Jaroslav Kysela <perex@perex.cz>
Cc: <stable@kernel.org>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
This commit is contained in:
Jaroslav Kysela 2009-12-09 10:44:47 +01:00 committed by Takashi Iwai
parent 11caa3bfdf
commit 396087eaea
1 changed files with 5 additions and 0 deletions
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5
sound/pci/hda/hda_intel.c
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@ -2450,6 +2450,11 @@ static int __devinit azx_create(struct snd_card *card, struct pci_dev *pci,
}
}
/* disable 64bit DMA address for Teradici */
/* it does not work with device 6549:1200 subsys e4a2:040b */
if (chip->driver_type == AZX_DRIVER_TERA)
gcap &= ~ICH6_GCAP_64OK;
/* allow 64bit DMA address if supported by H/W */
if ((gcap & ICH6_GCAP_64OK) && !pci_set_dma_mask(pci, DMA_BIT_MASK(64)))
pci_set_consistent_dma_mask(pci, DMA_BIT_MASK(64));