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>

parent 1c164acf

drivers/ide/ide-io.c

+3 −2

Original line number	Diff line number	Diff line
		@@ -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;
		}