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ide: clear bmdma status in ide_intr() for ICHx controllers (revised #4)

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patch 1/2 (revised):
- Fix drive->waiting_for_dma to work with CDB-intr devices.
- Do the dma status clearing in ide_intr() and add a new
  hwif->ide_dma_clear_irq for Intel ICHx controllers.

Revised per Alan, Sergei and Bart's advice.

Patch against 2.6.20-rc6. Tested ok on my ICH4 and pdc20275 adapters.
Please review/apply, thanks.

Signed-off-by: Albert Lee <albertcc@tw.ibm.com>
Cc: Sergei Shtylyov <sshtylyov@ru.mvista.com>
Cc: Alan Cox <alan@lxorguk.ukuu.org.uk>
Cc: "Adam W. Hawks" <awhawks@us.ibm.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
This commit is contained in:
Albert Lee 2007-02-17 02:40:21 +01:00 • committed by Bartlomiej Zolnierkiewicz
parent fdb77da4ca
commit f0dd8712eb
5 changed files with 69 additions and 15 deletions
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1
include/linux/ide.h
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@ -738,6 +738,7 @@ typedef struct hwif_s {
int (*ide_dma_on)(ide_drive_t *drive);
int (*ide_dma_off_quietly)(ide_drive_t *drive);
int (*ide_dma_test_irq)(ide_drive_t *drive);
void (*ide_dma_clear_irq)(ide_drive_t *drive);
int (*ide_dma_host_on)(ide_drive_t *drive);
int (*ide_dma_host_off)(ide_drive_t *drive);
int (*ide_dma_lostirq)(ide_drive_t *drive);