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

Get rid of old users of of_platform_driver in arch/powerpc.  Most
of_platform_driver users can be converted to use the platform_bus
directly.

Signed-off-by: Grant Likely <grant.likely@secretlab.ca>

diff --git a/drivers/dma/mpc512x_dma.c b/drivers/dma/mpc512x_dma.c
index 59c2701..4f95d31 100644
--- a/drivers/dma/mpc512x_dma.c
+++ b/drivers/dma/mpc512x_dma.c
@@ -649,8 +649,7 @@
 	return &mdesc->desc;
 }
 
-static int __devinit mpc_dma_probe(struct platform_device *op,
-					const struct of_device_id *match)
+static int __devinit mpc_dma_probe(struct platform_device *op)
 {
 	struct device_node *dn = op->dev.of_node;
 	struct device *dev = &op->dev;
@@ -827,7 +826,7 @@
 	{},
 };
 
-static struct of_platform_driver mpc_dma_driver = {
+static struct platform_driver mpc_dma_driver = {
 	.probe		= mpc_dma_probe,
 	.remove		= __devexit_p(mpc_dma_remove),
 	.driver = {
@@ -839,13 +838,13 @@
 
 static int __init mpc_dma_init(void)
 {
-	return of_register_platform_driver(&mpc_dma_driver);
+	return platform_driver_register(&mpc_dma_driver);
 }
 module_init(mpc_dma_init);
 
 static void __exit mpc_dma_exit(void)
 {
-	of_unregister_platform_driver(&mpc_dma_driver);
+	platform_driver_unregister(&mpc_dma_driver);
 }
 module_exit(mpc_dma_exit);