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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/ppc | |
| 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/ppc')
| -rw-r--r-- | drivers/ide/ppc/scc_pata.c | 8 |
1 files changed, 3 insertions, 5 deletions
diff --git a/drivers/ide/ppc/scc_pata.c b/drivers/ide/ppc/scc_pata.c index 7e3e93caafd0..de64b022478b 100644 --- a/drivers/ide/ppc/scc_pata.c +++ b/drivers/ide/ppc/scc_pata.c @@ -371,15 +371,13 @@ static int scc_config_chipset_for_dma(ide_drive_t *drive) static int scc_config_drive_for_dma(ide_drive_t *drive) { - ide_hwif_t *hwif = HWIF(drive); - if (ide_use_dma(drive) && scc_config_chipset_for_dma(drive)) - return hwif->ide_dma_on(drive); + return 0; if (ide_use_fast_pio(drive)) - hwif->tuneproc(drive, 4); + scc_tuneproc(drive, 4); - return hwif->ide_dma_off_quietly(drive); + return -1; } /** |