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    ide: add ide_set_dma() helper (v2) · 3608b5d7
    Bartlomiej Zolnierkiewicz 提交于
    * 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: NBartlomiej Zolnierkiewicz <bzolnier@gmail.com>
    3608b5d7
hpt34x.c 6.5 KB