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[ARM] Ensure sl82c105 IDE interfaces are serialized when using DMA 

We don't want to reset the DMA state machine while the other
channel is in use.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
This commit is contained in:
Russell King 2005-11-12 17:45:45 +00:00 committed by Russell King
parent da2660d2c4
commit a1510210c4
1 changed files with 3 additions and 0 deletions
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3
drivers/ide/pci/sl82c105.c
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@ -465,6 +465,9 @@ static void __devinit init_hwif_sl82c105(ide_hwif_t *hwif)
hwif->autodma = 1; hwif->autodma = 1;
hwif->drives[0].autodma = hwif->autodma; hwif->drives[0].autodma = hwif->autodma;
hwif->drives[1].autodma = hwif->autodma; hwif->drives[1].autodma = hwif->autodma;
if (hwif->mate)
hwif->serialized = hwif->mate->serialized = 1;
#endif /* CONFIG_BLK_DEV_IDEDMA */ #endif /* CONFIG_BLK_DEV_IDEDMA */
} }
hwif->OUTB(dma_state, hwif->dma_base + 2); hwif->OUTB(dma_state, hwif->dma_base + 2);