ide-pmac: add ->init_dev method (take 4)

v2/3:
* Build fixes from Stephen Rothwell.

v4:
* Fix ->noprobe setting. (From Benjamin Herrenschmidt)

Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>

drivers/ide/ppc/pmac.c

@@ -941,21 +941,41 @@ static u8 pmac_ide_cable_detect(ide_hwif_t *hwif)
 	return ATA_CBL_PATA40;
 }
 
+static void pmac_ide_init_dev(ide_drive_t *drive)
+{
+	ide_hwif_t *hwif = drive->hwif;
+	pmac_ide_hwif_t *pmif =
+		(pmac_ide_hwif_t *)dev_get_drvdata(hwif->gendev.parent);
+
+	if (pmif->mediabay) {
+#ifdef CONFIG_PMAC_MEDIABAY
+		if (check_media_bay_by_base(pmif->regbase, MB_CD) == 0) {
+			drive->noprobe = 0;
+			return;
+		}
+#endif
+		drive->noprobe = 1;
+	}
+}
+
 static const struct ide_port_ops pmac_ide_ata6_port_ops = {
+	.init_dev		= pmac_ide_init_dev,
 	.set_pio_mode		= pmac_ide_set_pio_mode,
 	.set_dma_mode		= pmac_ide_set_dma_mode,
 	.selectproc		= pmac_ide_kauai_selectproc,
 	.cable_detect		= pmac_ide_cable_detect,
 };
 
 static const struct ide_port_ops pmac_ide_ata4_port_ops = {
+	.init_dev		= pmac_ide_init_dev,
 	.set_pio_mode		= pmac_ide_set_pio_mode,
 	.set_dma_mode		= pmac_ide_set_dma_mode,
 	.selectproc		= pmac_ide_selectproc,
 	.cable_detect		= pmac_ide_cable_detect,
 };
 
 static const struct ide_port_ops pmac_ide_port_ops = {
+	.init_dev		= pmac_ide_init_dev,
 	.set_pio_mode		= pmac_ide_set_pio_mode,
 	.set_dma_mode		= pmac_ide_set_dma_mode,
 	.selectproc		= pmac_ide_selectproc,
@@ -1069,17 +1089,6 @@ pmac_ide_setup_device(pmac_ide_hwif_t *pmif, ide_hwif_t *hwif, hw_regs_t *hw)
 	       hwif->index, model_name[pmif->kind], pmif->aapl_bus_id,
 	       pmif->mediabay ? " (mediabay)" : "", hwif->irq);
 
-	if (pmif->mediabay) {
-#ifdef CONFIG_PMAC_MEDIABAY
-		if (check_media_bay_by_base(pmif->regbase, MB_CD)) {
-#else
-		if (1) {
-#endif
-			hwif->drives[0].noprobe = 1;
-			hwif->drives[1].noprobe = 1;
-		}
-	}
-
 	idx[0] = hwif->index;
 
 	ide_device_add(idx, &d);