[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: NAlan Cox <alan@redhat.com>
Acked-by: NBartlomiej Zolnierkiewicz <B.Zolnierkiewicz@elka.pw.edu.pl>
Signed-off-by: NAndrew Morton <akpm@osdl.org>
Signed-off-by: NLinus Torvalds <torvalds@osdl.org>

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);