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[ARM] Ensure sl82c105 IDE interfaces are serialized when using DMA
author
Russell King
<rmk@dyn-67.arm.linux.org.uk>
Sat, 12 Nov 2005 17:45:45 +0000
(17:45 +0000)
committer
Russell King
<rmk+kernel@arm.linux.org.uk>
Sat, 12 Nov 2005 17:45:45 +0000
(17:45 +0000)
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>
drivers/ide/pci/sl82c105.c
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diff --git
a/drivers/ide/pci/sl82c105.c
b/drivers/ide/pci/sl82c105.c
index
6466db5
..
8a5c7b2
100644
(file)
--- a/
drivers/ide/pci/sl82c105.c
+++ b/
drivers/ide/pci/sl82c105.c
@@
-465,6
+465,9
@@
static void __devinit init_hwif_sl82c105(ide_hwif_t *hwif)
hwif->autodma = 1;
hwif->drives[0].autodma = hwif->autodma;
hwif->drives[1].autodma = hwif->autodma;
+
+ if (hwif->mate)
+ hwif->serialized = hwif->mate->serialized = 1;
#endif /* CONFIG_BLK_DEV_IDEDMA */
}
hwif->OUTB(dma_state, hwif->dma_base + 2);