[PATCH] ide: IDE timing violation on reset

Pretty much theoretical for non MMIO thankfully.  We _must_ use OUTBSYNC for
commands or they may be posted and thus ruin the 400nS required delay.

Signed-off-by: Alan Cox <alan@redhat.com>
Acked-by: Bartlomiej Zolnierkiewicz <B.Zolnierkiewicz@elka.pw.edu.pl>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

1 files changed, 2 insertions, 1 deletions

diff --git a/drivers/ide/ide-iops.c b/drivers/ide/ide-iops.c
index 53024942a7eb..b443b04a4c5a 100644
--- a/drivers/ide/ide-iops.c
+++ b/drivers/ide/ide-iops.c
@@ -1181,7 +1181,8 @@ static ide_startstop_t do_reset1 (ide_drive_t *drive, int do_not_try_atapi)
                 pre_reset(drive);
                 SELECT_DRIVE(drive);
                 udelay (20);
-                hwif->OUTB(WIN_SRST, IDE_COMMAND_REG);
+                hwif->OUTBSYNC(drive, WIN_SRST, IDE_COMMAND_REG);
+                ndelay(400);
                 hwgroup->poll_timeout = jiffies + WAIT_WORSTCASE;
                 hwgroup->polling = 1;
                 __ide_set_handler(drive, &atapi_reset_pollfunc, HZ/20, NULL);