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authorBartlomiej Zolnierkiewicz <bzolnier@gmail.com>2010-01-19 01:47:29 -0800
committerDavid S. Miller <davem@davemloft.net>2010-01-19 01:47:29 -0800
commit8e714a074bc4da070807d019d4287dcd32af55f5 (patch)
tree4c13df2062e12406465bd0b1218cadb3dcfe2066 /drivers/ide
parent8776168ca2151850164af1de5565d01f7b8b2c53 (diff)
downloadlinux-8e714a074bc4da070807d019d4287dcd32af55f5.tar.bz2
ide-timings: use ->pio_mode value to determine fastest PIO speed
Use the current PIO mode value instead of the physical maximum one to determine the fastest allowed PIO for shared PIO/DMA timings. Affected host drivers: amd74xx and via82cxxx. [ Update comment to match -DaveM ] Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/ide')
-rw-r--r--drivers/ide/ide-timings.c5
1 files changed, 2 insertions, 3 deletions
diff --git a/drivers/ide/ide-timings.c b/drivers/ide/ide-timings.c
index c6053ab2b6c6..c7a65ee72310 100644
--- a/drivers/ide/ide-timings.c
+++ b/drivers/ide/ide-timings.c
@@ -186,11 +186,10 @@ int ide_timing_compute(ide_drive_t *drive, u8 speed,
/*
* Even in DMA/UDMA modes we still use PIO access for IDENTIFY,
* S.M.A.R.T and some other commands. We have to ensure that the
- * DMA cycle timing is slower/equal than the fastest PIO timing.
+ * DMA cycle timing is slower/equal than the current PIO timing.
*/
if (speed >= XFER_SW_DMA_0) {
- u8 pio = ide_get_best_pio_mode(drive, 255, 5);
- ide_timing_compute(drive, XFER_PIO_0 + pio, &p, T, UT);
+ ide_timing_compute(drive, drive->pio_mode, &p, T, UT);
ide_timing_merge(&p, t, t, IDE_TIMING_ALL);
}