dt/usb: Eliminate users of of_platform_{,un}register_driver

Get rid of users of of_platform_driver in drivers/usb.  The
of_platform_{,un}register_driver functions are going away, so the
users need to be converted to using the platform_bus_type directly.

Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
diff --git a/drivers/usb/host/ohci-ppc-of.c b/drivers/usb/host/ohci-ppc-of.c
index b2c2dbf..1ca1821 100644
--- a/drivers/usb/host/ohci-ppc-of.c
+++ b/drivers/usb/host/ohci-ppc-of.c
@@ -80,8 +80,7 @@
 };
 
 
-static int __devinit
-ohci_hcd_ppc_of_probe(struct platform_device *op, const struct of_device_id *match)
+static int __devinit ohci_hcd_ppc_of_probe(struct platform_device *op)
 {
 	struct device_node *dn = op->dev.of_node;
 	struct usb_hcd *hcd;
@@ -201,14 +200,12 @@
 	return 0;
 }
 
-static int ohci_hcd_ppc_of_shutdown(struct platform_device *op)
+static void ohci_hcd_ppc_of_shutdown(struct platform_device *op)
 {
 	struct usb_hcd *hcd = dev_get_drvdata(&op->dev);
 
         if (hcd->driver->shutdown)
                 hcd->driver->shutdown(hcd);
-
-	return 0;
 }
 
 
@@ -243,7 +240,7 @@
 #endif
 
 
-static struct of_platform_driver ohci_hcd_ppc_of_driver = {
+static struct platform_driver ohci_hcd_ppc_of_driver = {
 	.probe		= ohci_hcd_ppc_of_probe,
 	.remove		= ohci_hcd_ppc_of_remove,
 	.shutdown 	= ohci_hcd_ppc_of_shutdown,