cs5530/sc1200: DMA support cleanup

sc1200.c:

* remove open-coded variant of ide_dma_host_off() (== ->dma_host_off),
  it is not needed because ->dma_off_quietly calls ->dma_host_off

* use ->dma_host_on (== ide_dma_host_on() for this driver) instead of
  open-coded variant, call it from the users of sc1200_config_dma2()

  [ there is no need to call ->dma_host_on in sc1200_config_dma() because
    core code takes care of calling ->ide_dma_on on successful execution
    of ->ide_dma_check ]

* add comment about ->tuneproc interface abuse

cs5530.c/sc1200.c:

* core code takes care of calling ->dma_off_quietly before calling
  ->ide_dma_check so there is no need to call it in ->ide_dma_check methods

* bump driver version

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

1 files changed, 1 insertions, 6 deletions

diff --git a/drivers/ide/pci/cs5530.c b/drivers/ide/pci/cs5530.c
index 845500115f3..ec52dbec675 100644
--- a/drivers/ide/pci/cs5530.c
+++ b/drivers/ide/pci/cs5530.c
@@ -1,5 +1,5 @@
 /*
- * linux/drivers/ide/pci/cs5530.c               Version 0.71    Mar 10 2007
+ * linux/drivers/ide/pci/cs5530.c               Version 0.72    Mar 10 2007
  *
  * Copyright (C) 2000                   Andre Hedrick <andre@linux-ide.org>
  * Copyright (C) 2000                   Mark Lord <mlord@pobox.com>
@@ -141,11 +141,6 @@ static int cs5530_config_dma(ide_drive_t *drive)
         unsigned long basereg;
         u8 unit = drive->dn & 1, mode = 0;
 
-        /*
-         * Default to DMA-off in case we run into trouble here.
-         */
-        hwif->dma_off_quietly(drive);
-
         if (ide_use_dma(drive))
                 mode = ide_max_dma_mode(drive);