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| author | Bartlomiej Zolnierkiewicz <bzolnier@gmail.com> | 2007-02-17 02:40:26 +0100 |
|---|---|---|
| committer | Bartlomiej Zolnierkiewicz <bzolnier@gmail.com> | 2007-02-17 02:40:26 +0100 |
| commit | 3608b5d71a52c053787dbad6af20c25f7e0b75a9 (patch) | |
| tree | 5bd6ac777d32d8426e65e3c31cc1587674771e8c /drivers/ide/cris | |
| parent | sgiioc4: fix sgiioc4_ide_dma_check() to enable/disable DMA properly (diff) | |
| download | linux-3608b5d71a52c053787dbad6af20c25f7e0b75a9.tar.xz linux-3608b5d71a52c053787dbad6af20c25f7e0b75a9.zip | |
ide: add ide_set_dma() helper (v2)
* add ide_set_dma() helper and make ide_hwif_t.ide_dma_check return
-1 when DMA needs to be disabled (== need to call ->ide_dma_off_quietly)
0 when DMA needs to be enabled (== need to call ->ide_dma_on)
1 when DMA setting shouldn't be changed
* fix IDE code to use ide_set_dma() instead if using ->ide_dma_check directly
v2:
* updated for scc_pata
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
Diffstat (limited to 'drivers/ide/cris')
| -rw-r--r-- | drivers/ide/cris/ide-cris.c | 6 |
1 files changed, 2 insertions, 4 deletions
diff --git a/drivers/ide/cris/ide-cris.c b/drivers/ide/cris/ide-cris.c index 24281176b4dc..027341d66b28 100644 --- a/drivers/ide/cris/ide-cris.c +++ b/drivers/ide/cris/ide-cris.c @@ -1048,12 +1048,10 @@ static ide_startstop_t cris_dma_intr (ide_drive_t *drive) static int cris_dma_check(ide_drive_t *drive) { - ide_hwif_t *hwif = drive->hwif; - if (ide_use_dma(drive) && cris_config_drive_for_dma(drive)) - return hwif->ide_dma_on(drive); + return 0; - return hwif->ide_dma_off_quietly(drive); + return -1; } static int cris_dma_end(ide_drive_t *drive) |