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authorSergei Shtylyov <sshtylyov@ru.mvista.com>2006-12-08 02:39:59 -0800
committerLinus Torvalds <torvalds@woody.osdl.org>2006-12-08 08:29:03 -0800
commitb10a06866600d1eda9e72ff328999e70f077fb3a (patch)
tree5b24ab8eab610142653791cd63508a962a883f62 /drivers/ide
parentb1489009963b8c5132f2ffe23483e811d9ae5607 (diff)
downloadop-kernel-dev-b10a06866600d1eda9e72ff328999e70f077fb3a.zip
op-kernel-dev-b10a06866600d1eda9e72ff328999e70f077fb3a.tar.gz
[PATCH] pdc202xx_new: fix PIO mode setup
Fix pdcnew_tune_drive() to always set the PIO mode requested, not pick the best possible one, change pdcnew_config_drive_xfer_rate() accordingly, and get rid of the duplicate tuneproc() call in config_chipset_for_dma(). Signed-off-by: Sergei Shtylyov <sshtylyov@ru.mvista.com> Cc: Alan Cox <alan@lxorguk.ukuu.org.uk> Cc: Bartlomiej Zolnierkiewicz <B.Zolnierkiewicz@elka.pw.edu.pl> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'drivers/ide')
-rw-r--r--drivers/ide/pci/pdc202xx_new.c15
1 files changed, 5 insertions, 10 deletions
diff --git a/drivers/ide/pci/pdc202xx_new.c b/drivers/ide/pci/pdc202xx_new.c
index 0592dc0..3ca5810 100644
--- a/drivers/ide/pci/pdc202xx_new.c
+++ b/drivers/ide/pci/pdc202xx_new.c
@@ -9,6 +9,7 @@
* Split from:
* linux/drivers/ide/pdc202xx.c Version 0.35 Mar. 30, 2002
* Copyright (C) 1998-2002 Andre Hedrick <andre@linux-ide.org>
+ * Copyright (C) 2005-2006 MontaVista Software, Inc.
* Portions Copyright (C) 1999 Promise Technology, Inc.
* Author: Frank Tiernan (frankt@promise.com)
* Released under terms of General Public License
@@ -168,12 +169,8 @@ static int pdcnew_new_tune_chipset (ide_drive_t *drive, u8 xferspeed)
*/
static void pdcnew_tune_drive(ide_drive_t *drive, u8 pio)
{
- u8 speed;
-
- if (pio == 5) pio = 4;
- speed = XFER_PIO_0 + ide_get_best_pio_mode(drive, 255, pio, NULL);
-
- (void)pdcnew_new_tune_chipset(drive, speed);
+ pio = ide_get_best_pio_mode(drive, pio, 4, NULL);
+ (void)pdcnew_new_tune_chipset(drive, XFER_PIO_0 + pio);
}
static u8 pdcnew_new_cable_detect (ide_hwif_t *hwif)
@@ -207,10 +204,8 @@ static int config_chipset_for_dma (ide_drive_t *drive)
speed = ide_dma_speed(drive, pdcnew_ratemask(drive));
- if (!(speed)) {
- hwif->tuneproc(drive, 5);
+ if (!speed)
return 0;
- }
(void) hwif->speedproc(drive, speed);
return ide_dma_enable(drive);
@@ -234,7 +229,7 @@ static int pdcnew_config_drive_xfer_rate (ide_drive_t *drive)
} else if ((id->capability & 8) || (id->field_valid & 2)) {
fast_ata_pio:
- hwif->tuneproc(drive, 5);
+ hwif->tuneproc(drive, 255);
return hwif->ide_dma_off_quietly(drive);
}
/* IORDY not supported */
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