cmd64x: set IDE_HFLAG_SERIALIZE explictly for CMD646

* Set IDE_HFLAG_SERIALIZE explictly for CMD646.

* Remove no longer needed ide_cmd646 chipset type (which has
  a nice side-effect of fixing handling of unexpected IRQs).

Cc: Sergei Shtylyov <sshtylyov@ru.mvista.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>

1 files changed, 2 insertions, 2 deletions

diff --git a/drivers/ide/cmd64x.c b/drivers/ide/cmd64x.c
index 935385c77e06..3623bf013bcf 100644
--- a/drivers/ide/cmd64x.c
+++ b/drivers/ide/cmd64x.c
@@ -424,10 +424,10 @@ static const struct ide_port_info cmd64x_chipsets[] __devinitdata = {
                 .name           = DRV_NAME,
                 .init_chipset   = init_chipset_cmd64x,
                 .enablebits     = {{0x51,0x04,0x04}, {0x51,0x08,0x08}},
-                .chipset        = ide_cmd646,
                 .port_ops       = &cmd64x_port_ops,
                 .dma_ops        = &cmd648_dma_ops,
-                .host_flags     = IDE_HFLAG_ABUSE_PREFETCH,
+                .host_flags     = IDE_HFLAG_SERIALIZE |
+                                  IDE_HFLAG_ABUSE_PREFETCH,
                 .pio_mask       = ATA_PIO5,
                 .mwdma_mask     = ATA_MWDMA2,
                 .udma_mask      = ATA_UDMA2,