opti621: remove DMA support

These controllers don't support DMA.

Based on a bugreport from Juergen Kosel & inspired by pata_opti.c code.

Tested-by: Juergen Kosel <juergen.kosel@gmx.de>
Acked-by: Sergei Shtylyov <sshtylyov@ru.mvista.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>

1 files changed, 2 insertions, 6 deletions

diff --git a/drivers/ide/pci/opti621.c b/drivers/ide/pci/opti621.c
index e31e0f970a2c..65f180738947 100644
--- a/drivers/ide/pci/opti621.c
+++ b/drivers/ide/pci/opti621.c
@@ -324,18 +324,14 @@ static const struct ide_port_info opti621_chipsets[] __devinitdata = {
                 .name           = "OPTI621",
                 .enablebits     = { {0x45, 0x80, 0x00}, {0x40, 0x08, 0x00} },
                 .port_ops       = &opti621_port_ops,
-                .host_flags     = IDE_HFLAG_TRUST_BIOS_FOR_DMA,
+                .host_flags     = IDE_HFLAG_NO_DMA,
                 .pio_mask       = ATA_PIO3,
-                .swdma_mask     = ATA_SWDMA2,
-                .mwdma_mask     = ATA_MWDMA2,
         }, {    /* 1 */
                 .name           = "OPTI621X",
                 .enablebits     = { {0x45, 0x80, 0x00}, {0x40, 0x08, 0x00} },
                 .port_ops       = &opti621_port_ops,
-                .host_flags     = IDE_HFLAG_TRUST_BIOS_FOR_DMA,
+                .host_flags     = IDE_HFLAG_NO_DMA,
                 .pio_mask       = ATA_PIO3,
-                .swdma_mask     = ATA_SWDMA2,
-                .mwdma_mask     = ATA_MWDMA2,
         }
 };