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Commit 3ee89f17 authored by Tejun Heo's avatar Tejun Heo Committed by Jeff Garzik
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pata_hpt366: no ATAPI DMA 



IDE hpt366 driver doesn't allow DMA for ATAPI devices and MWDMA2 on
ATAPI device locks up pata_hpt366.  Follow the suit.

Signed-off-by: default avatarTejun Heo <tj@kernel.org>
Signed-off-by: default avatarJeff Garzik <jgarzik@redhat.com>
parent bab5b32a

drivers/ata/pata_hpt366.c

+3 −1
Original line number Diff line number Diff line
@@ -183,7 +183,9 @@ static unsigned long hpt366_filter(struct ata_device *adev, unsigned long mask) 
			mask &= ~(0xF8 << ATA_SHIFT_UDMA);

		if (hpt_dma_blacklisted(adev, "UDMA4", bad_ata66_4))

			mask &= ~(0xF0 << ATA_SHIFT_UDMA);

	}

	} else if (adev->class == ATA_DEV_ATAPI)

		mask &= ~(ATA_MASK_MWDMA | ATA_MASK_UDMA);



	return ata_bmdma_mode_filter(adev, mask);

}