[PATCH] cs5530: small cleanup
* BUG() on unknown DMA mode in cs5530_config_dma()
* there is no need to call hwif->ide_dma_host_{off,on}() in
cs5530_config_dma() because hwif->ide_dma_host_{off,on}()
is called by hwif->ide_dma_off_{quietly,on}()
Signed-off-by: Bartlomiej Zolnierkiewicz <[email protected]>
---
drivers/ide/pci/cs5530.c | 12 +++---------
1 file changed, 3 insertions(+), 9 deletions(-)
Index: a/drivers/ide/pci/cs5530.c
===================================================================
--- a.orig/drivers/ide/pci/cs5530.c
+++ a/drivers/ide/pci/cs5530.c
@@ -103,16 +103,13 @@ static int cs5530_config_dma (ide_drive_
int unit = drive->select.b.unit;
ide_drive_t *mate = &hwif->drives[unit^1];
struct hd_driveid *id = drive->id;
- unsigned int reg, timings;
+ unsigned int reg, timings = 0;
unsigned long basereg;
/*
* Default to DMA-off in case we run into trouble here.
*/
hwif->ide_dma_off_quietly(drive);
- /* turn off DMA while we fiddle */
- hwif->ide_dma_host_off(drive);
- /* clear DMA_capable bit */
/*
* The CS5530 specifies that two drives sharing a cable cannot
@@ -182,9 +179,8 @@ static int cs5530_config_dma (ide_drive_
case XFER_MW_DMA_1: timings = 0x00012121; break;
case XFER_MW_DMA_2: timings = 0x00002020; break;
default:
- printk(KERN_ERR "%s: cs5530_config_dma: huh? mode=%02x\n",
- drive->name, mode);
- return 1; /* failure */
+ BUG();
+ break;
}
basereg = CS5530_BASEREG(hwif);
reg = hwif->INL(basereg+4); /* get drive0 config register */
@@ -199,8 +195,6 @@ static int cs5530_config_dma (ide_drive_
hwif->OUTL(reg, basereg+4); /* write drive0 config register */
hwif->OUTL(timings, basereg+12); /* write drive1 config register */
}
- (void) hwif->ide_dma_host_on(drive);
- /* set DMA_capable bit */
/*
* Finally, turn DMA on in software, and exit.
-
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