ide: ide_start_power_step() fix WRT disabling DMA

* Do the same thing as probe_hwif() and always disable DMA so chipset DMA
  enabled bit gets cleared (if the drive doesn't support DMA ide_set_dma()
  won't try to tune it anyway).

* Add TODO comment about respecting ->using_dma setting.

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

diff --git a/drivers/ide/ide-io.c b/drivers/ide/ide-io.c
index f9de798..484c50e 100644 (file)
--- a/drivers/ide/ide-io.c
+++ b/drivers/ide/ide-io.c
@@ -224,11 +224,12 @@ static ide_startstop_t ide_start_power_step(ide_drive_t *drive, struct request *
                 * we could be smarter and check for current xfer_speed
                 * in struct drive etc...
                 */
-               if ((drive->id->capability & 1) == 0)
-                       break;
                if (drive->hwif->ide_dma_check == NULL)
                        break;
                drive->hwif->dma_off_quietly(drive);
+               /*
+                * TODO: respect ->using_dma setting
+                */
                ide_set_dma(drive);
                break;
        }