ide: add missing checks for control register existence

Add missing checks for control register existence (some legacy m68k specific
IDE controllers don't have it).  Also use drive->ctl while at it.

Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>

drivers/ide/ide-io.c

@@ -970,7 +970,8 @@ static void ide_check_pm_state(ide_drive_t *drive, struct request *rq)
 		if (rc)
 			printk(KERN_WARNING "%s: bus not ready on wakeup\n", drive->name);
 		SELECT_DRIVE(drive);
-		HWIF(drive)->OUTB(8, HWIF(drive)->io_ports[IDE_CONTROL_OFFSET]);
+		if (IDE_CONTROL_REG)
+			HWIF(drive)->OUTB(drive->ctl, IDE_CONTROL_REG);
 		rc = ide_wait_not_busy(HWIF(drive), 100000);
 		if (rc)
 			printk(KERN_WARNING "%s: drive not ready on wakeup\n", drive->name);

drivers/ide/ide-probe.c

@@ -667,7 +667,8 @@ static int wait_hwif_ready(ide_hwif_t *hwif)
 		/* Ignore disks that we will not probe for later. */
 		if (!drive->noprobe || drive->present) {
 			SELECT_DRIVE(drive);
-			hwif->OUTB(8, hwif->io_ports[IDE_CONTROL_OFFSET]);
+			if (IDE_CONTROL_REG)
+				hwif->OUTB(drive->ctl, IDE_CONTROL_REG);
 			mdelay(2);
 			rc = ide_wait_not_busy(hwif, 35000);
 			if (rc)