ide: add ide_tune_dma() helper

After reworking the code responsible for selecting the best DMA
transfer mode it is now possible to add generic ide_tune_dma() helper.

Convert some IDE PCI host drivers to use it (the ones left need more work).

Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>

1 files changed, 1 insertions, 20 deletions

diff --git a/drivers/ide/pci/it8213.c b/drivers/ide/pci/it8213.c
index 02b56cb7bb1b..c04a02687b95 100644
--- a/drivers/ide/pci/it8213.c
+++ b/drivers/ide/pci/it8213.c
@@ -197,25 +197,6 @@ static int it8213_tune_chipset (ide_drive_t *drive, u8 xferspeed)
         return ide_config_drive_speed(drive, speed);
 }
 
-/*
- *      config_chipset_for_dma  -       configure for DMA
- *      @drive: drive to configure
- *
- *      Called by the IDE layer when it wants the timings set up.
- */
-
-static int config_chipset_for_dma (ide_drive_t *drive)
-{
-        u8 speed = ide_max_dma_mode(drive);
-
-        if (!speed)
-                return 0;
-
-        it8213_tune_chipset(drive, speed);
-
-        return ide_dma_enable(drive);
-}
-
 /**
  *      it8213_configure_drive_for_dma  -       set up for DMA transfers
  *      @drive: drive we are going to set up
@@ -230,7 +211,7 @@ static int it8213_config_drive_for_dma (ide_drive_t *drive)
 {
         u8 pio;
 
-        if (ide_use_dma(drive) && config_chipset_for_dma(drive))
+        if (ide_tune_dma(drive))
                 return 0;
 
         pio = ide_get_best_pio_mode(drive, 255, 4, NULL);