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/arch/powerpc/platforms/52xx/mpc52xx_gpt.c b/arch/powerpc/platforms/52xx/mpc52xx_gpt.c
index e0d703c..859abf1 100644
--- a/arch/powerpc/platforms/52xx/mpc52xx_gpt.c
+++ b/arch/powerpc/platforms/52xx/mpc52xx_gpt.c
@@ -721,8 +721,7 @@
 /* ---------------------------------------------------------------------
  * of_platform bus binding code
  */
-static int __devinit mpc52xx_gpt_probe(struct platform_device *ofdev,
-				       const struct of_device_id *match)
+static int __devinit mpc52xx_gpt_probe(struct platform_device *ofdev)
 {
 	struct mpc52xx_gpt_priv *gpt;
 
@@ -781,7 +780,7 @@
 	{}
 };
 
-static struct of_platform_driver mpc52xx_gpt_driver = {
+static struct platform_driver mpc52xx_gpt_driver = {
 	.driver = {
 		.name = "mpc52xx-gpt",
 		.owner = THIS_MODULE,
@@ -793,10 +792,7 @@
 
 static int __init mpc52xx_gpt_init(void)
 {
-	if (of_register_platform_driver(&mpc52xx_gpt_driver))
-		pr_err("error registering MPC52xx GPT driver\n");
-
-	return 0;
+	return platform_driver_register(&mpc52xx_gpt_driver);
 }
 
 /* Make sure GPIOs and IRQs get set up before anyone tries to use them */