1 files changed, 1 insertions, 38 deletions

diff --git a/drivers/ata/pata_cs5520.c b/drivers/ata/pata_cs5520.c
index 0df83cf74233..95ebdac517f2 100644
--- a/drivers/ata/pata_cs5520.c
+++ b/drivers/ata/pata_cs5520.c
@@ -90,48 +90,12 @@ static void cs5520_set_timings(struct ata_port *ap, struct ata_device *adev, int
 }
 
 /**
- *      cs5520_enable_dma       -       turn on DMA bits
- *
- *      Turn on the DMA bits for this disk. Needed because the BIOS probably
- *      has not done the work for us. Belongs in the core SATA code.
- */
-
-static void cs5520_enable_dma(struct ata_port *ap, struct ata_device *adev)
-{
-        /* Set the DMA enable/disable flag */
-        u8 reg = ioread8(ap->ioaddr.bmdma_addr + 0x02);
-        reg |= 1<<(adev->devno + 5);
-        iowrite8(reg, ap->ioaddr.bmdma_addr + 0x02);
-}
-
-/**
- *      cs5520_set_dmamode      -       program DMA timings
- *      @ap: ATA port
- *      @adev: ATA device
- *
- *      Program the DMA mode timings for the controller according to the pio
- *      clocking table. Note that this device sets the DMA timings to PIO
- *      mode values. This may seem bizarre but the 5520 architecture talks
- *      PIO mode to the disk and DMA mode to the controller so the underlying
- *      transfers are PIO timed.
- */
-
-static void cs5520_set_dmamode(struct ata_port *ap, struct ata_device *adev)
-{
-        static const int dma_xlate[3] = { XFER_PIO_0, XFER_PIO_3, XFER_PIO_4 };
-        cs5520_set_timings(ap, adev, dma_xlate[adev->dma_mode]);
-        cs5520_enable_dma(ap, adev);
-}
-
-/**
  *      cs5520_set_piomode      -       program PIO timings
  *      @ap: ATA port
  *      @adev: ATA device
  *
  *      Program the PIO mode timings for the controller according to the pio
- *      clocking table. We know pio_mode will equal dma_mode because of the
- *      CS5520 architecture. At least once we turned DMA on and wrote a
- *      mode setter.
+ *      clocking table.
  */
 
 static void cs5520_set_piomode(struct ata_port *ap, struct ata_device *adev)
@@ -149,7 +113,6 @@ static struct ata_port_operations cs5520_port_ops = {
         .qc_prep                = ata_sff_dumb_qc_prep,
         .cable_detect           = ata_cable_40wire,
         .set_piomode            = cs5520_set_piomode,
-        .set_dmamode            = cs5520_set_dmamode,
 };
 
 static int __devinit cs5520_init_one(struct pci_dev *pdev, const struct pci_device_id *id)