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, 12 deletions

diff --git a/drivers/ide/pci/slc90e66.c b/drivers/ide/pci/slc90e66.c
index 9e95a5cbf984..c40f291f91e0 100644
--- a/drivers/ide/pci/slc90e66.c
+++ b/drivers/ide/pci/slc90e66.c
@@ -160,22 +160,11 @@ static int slc90e66_tune_chipset (ide_drive_t *drive, u8 xferspeed)
         return ide_config_drive_speed(drive, speed);
 }
 
-static int slc90e66_config_drive_for_dma (ide_drive_t *drive)
-{
-        u8 speed = ide_max_dma_mode(drive);
-
-        if (!speed)
-                return 0;
-
-        (void) slc90e66_tune_chipset(drive, speed);
-        return ide_dma_enable(drive);
-}
-
 static int slc90e66_config_drive_xfer_rate (ide_drive_t *drive)
 {
         drive->init_speed = 0;
 
-        if (ide_use_dma(drive) && slc90e66_config_drive_for_dma(drive))
+        if (ide_tune_dma(drive))
                 return 0;
 
         if (ide_use_fast_pio(drive))