1 files changed, 9 insertions, 19 deletions

diff --git a/drivers/usb/host/ohci-ppc-of.c b/drivers/usb/host/ohci-ppc-of.c
index 81f3eba215c..965e3e9e688 100644
--- a/drivers/usb/host/ohci-ppc-of.c
+++ b/drivers/usb/host/ohci-ppc-of.c
@@ -115,24 +115,18 @@ static int ohci_hcd_ppc_of_probe(struct platform_device *op)
 	hcd->rsrc_start = res.start;
 	hcd->rsrc_len = resource_size(&res);
 
-	if (!request_mem_region(hcd->rsrc_start, hcd->rsrc_len, hcd_name)) {
-		printk(KERN_ERR "%s: request_mem_region failed\n", __FILE__);
-		rv = -EBUSY;
+	hcd->regs = devm_ioremap_resource(&op->dev, &res);
+	if (IS_ERR(hcd->regs)) {
+		rv = PTR_ERR(hcd->regs);
 		goto err_rmr;
 	}
 
 	irq = irq_of_parse_and_map(dn, 0);
 	if (irq == NO_IRQ) {
-		printk(KERN_ERR "%s: irq_of_parse_and_map failed\n", __FILE__);
+		dev_err(&op->dev, "%s: irq_of_parse_and_map failed\n",
+			__FILE__);
 		rv = -EBUSY;
-		goto err_irq;
-	}
-
-	hcd->regs = ioremap(hcd->rsrc_start, hcd->rsrc_len);
-	if (!hcd->regs) {
-		printk(KERN_ERR "%s: ioremap failed\n", __FILE__);
-		rv = -ENOMEM;
-		goto err_ioremap;
+		goto err_rmr;
 	}
 
 	ohci = hcd_to_ohci(hcd);
@@ -147,8 +141,10 @@ static int ohci_hcd_ppc_of_probe(struct platform_device *op)
 	ohci_hcd_init(ohci);
 
 	rv = usb_add_hcd(hcd, irq, 0);
-	if (rv == 0)
+	if (rv == 0) {
+		device_wakeup_enable(hcd->self.controller);
 		return 0;
+	}
 
 	/* by now, 440epx is known to show usb_23 erratum */
 	np = of_find_compatible_node(NULL, NULL, "ibm,usb-ehci-440epx");
@@ -174,11 +170,7 @@ static int ohci_hcd_ppc_of_probe(struct platform_device *op)
 			pr_debug("%s: cannot get ehci offset from fdt\n", __FILE__);
 	}
 
-	iounmap(hcd->regs);
-err_ioremap:
 	irq_dispose_mapping(irq);
-err_irq:
-	release_mem_region(hcd->rsrc_start, hcd->rsrc_len);
 err_rmr:
  	usb_put_hcd(hcd);
 
@@ -193,9 +185,7 @@ static int ohci_hcd_ppc_of_remove(struct platform_device *op)
 
 	usb_remove_hcd(hcd);
 
-	iounmap(hcd->regs);
 	irq_dispose_mapping(hcd->irq);
-	release_mem_region(hcd->rsrc_start, hcd->rsrc_len);
 
 	usb_put_hcd(hcd);