[DRIVER MODEL] Convert platform drivers to use struct platform_driver

This allows us to eliminate the casts in the drivers, and eventually
remove the use of the device_driver function pointer methods for
platform device drivers.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Acked-by: Greg Kroah-Hartman <gregkh@suse.de>

1 files changed, 8 insertions, 9 deletions

diff --git a/drivers/char/vr41xx_rtc.c b/drivers/char/vr41xx_rtc.c
index 5e3292df69d8..435b30748e23 100644
--- a/drivers/char/vr41xx_rtc.c
+++ b/drivers/char/vr41xx_rtc.c
@@ -560,13 +560,11 @@ static struct miscdevice rtc_miscdevice = {
         .fops   = &rtc_fops,
 };
 
-static int rtc_probe(struct device *dev)
+static int rtc_probe(struct platform_device *pdev)
 {
-        struct platform_device *pdev;
         unsigned int irq;
         int retval;
 
-        pdev = to_platform_device(dev);
         if (pdev->num_resources != 2)
                 return -EBUSY;
 
@@ -635,7 +633,7 @@ static int rtc_probe(struct device *dev)
         return 0;
 }
 
-static int rtc_remove(struct device *dev)
+static int rtc_remove(struct platform_device *dev)
 {
         int retval;
 
@@ -655,11 +653,12 @@ static int rtc_remove(struct device *dev)
 
 static struct platform_device *rtc_platform_device;
 
-static struct device_driver rtc_device_driver = {
-        .name           = rtc_name,
-        .bus            = &platform_bus_type,
+static struct platform_driver rtc_device_driver = {
         .probe          = rtc_probe,
         .remove         = rtc_remove,
+        .driver         = {
+                .name   = rtc_name,
+        },
 };
 
 static int __devinit vr41xx_rtc_init(void)
@@ -691,7 +690,7 @@ static int __devinit vr41xx_rtc_init(void)
         if (IS_ERR(rtc_platform_device))
                 return PTR_ERR(rtc_platform_device);
 
-        retval = driver_register(&rtc_device_driver);
+        retval = platform_driver_register(&rtc_device_driver);
         if (retval < 0)
                 platform_device_unregister(rtc_platform_device);
 
@@ -700,7 +699,7 @@ static int __devinit vr41xx_rtc_init(void)
 
 static void __devexit vr41xx_rtc_exit(void)
 {
-        driver_unregister(&rtc_device_driver);
+        platform_driver_unregister(&rtc_device_driver);
 
         platform_device_unregister(rtc_platform_device);
 }