aboutsummaryrefslogtreecommitdiff
path: root/drivers/ide/pci
diff options
context:
space:
mode:
authorBartlomiej Zolnierkiewicz <bzolnier@gmail.com>2007-02-17 02:40:23 +0100
committerBartlomiej Zolnierkiewicz <bzolnier@gmail.com>2007-02-17 02:40:23 +0100
commit15b854853515e7223fd7224de53799af4a66059c (patch)
treecf5032502ac053685cd0db036df0a662ed537c33 /drivers/ide/pci
parent73d4f7d5874b378fa622f156410ffba645c1ef40 (diff)
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 <bzolnier@gmail.com>
Diffstat (limited to 'drivers/ide/pci')
-rw-r--r--drivers/ide/pci/cs5530.c12
1 files changed, 3 insertions, 9 deletions
diff --git a/drivers/ide/pci/cs5530.c b/drivers/ide/pci/cs5530.c
index 9bf5fdfc5b1..98f260196c4 100644
--- a/drivers/ide/pci/cs5530.c
+++ b/drivers/ide/pci/cs5530.c
@@ -103,16 +103,13 @@ static int cs5530_config_dma (ide_drive_t *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_t *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_t *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.