[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, 12 insertions, 13 deletions

diff --git a/drivers/video/gbefb.c b/drivers/video/gbefb.c
index 9d5e4f342110..d744c51807b7 100644
--- a/drivers/video/gbefb.c
+++ b/drivers/video/gbefb.c
@@ -1105,12 +1105,11 @@ int __init gbefb_setup(char *options)
         return 0;
 }
 
-static int __init gbefb_probe(struct device *dev)
+static int __init gbefb_probe(struct platform_device *p_dev)
 {
         int i, ret = 0;
         struct fb_info *info;
         struct gbefb_par *par;
-        struct platform_device *p_dev = to_platform_device(dev);
 #ifndef MODULE
         char *options = NULL;
 #endif
@@ -1204,8 +1203,8 @@ static int __init gbefb_probe(struct device *dev)
                 goto out_gbe_unmap;
         }
 
-        dev_set_drvdata(&p_dev->dev, info);
-        gbefb_create_sysfs(dev);
+        platform_set_drvdata(p_dev, info);
+        gbefb_create_sysfs(&p_dev->dev);
 
         printk(KERN_INFO "fb%d: %s rev %d @ 0x%08x using %dkB memory\n",
                info->node, info->fix.id, gbe_revision, (unsigned) GBE_BASE,
@@ -1231,10 +1230,9 @@ out_release_framebuffer:
         return ret;
 }
 
-static int __devexit gbefb_remove(struct device* dev)
+static int __devexit gbefb_remove(struct platform_device* p_dev)
 {
-        struct platform_device *p_dev = to_platform_device(dev);
-        struct fb_info *info = dev_get_drvdata(&p_dev->dev);
+        struct fb_info *info = platform_get_drvdata(p_dev);
 
         unregister_framebuffer(info);
         gbe_turn_off();
@@ -1252,18 +1250,19 @@ static int __devexit gbefb_remove(struct device* dev)
         return 0;
 }
 
-static struct device_driver gbefb_driver = {
-        .name = "gbefb",
-        .bus = &platform_bus_type,
+static struct platform_driver gbefb_driver = {
         .probe = gbefb_probe,
         .remove = __devexit_p(gbefb_remove),
+        .driver = {
+                .name = "gbefb",
+        },
 };
 
 static struct platform_device *gbefb_device;
 
 int __init gbefb_init(void)
 {
-        int ret = driver_register(&gbefb_driver);
+        int ret = platform_driver_register(&gbefb_driver);
         if (!ret) {
                 gbefb_device = platform_device_alloc("gbefb", 0);
                 if (gbefb_device) {
@@ -1273,7 +1272,7 @@ int __init gbefb_init(void)
                 }
                 if (ret) {
                         platform_device_put(gbefb_device);
-                        driver_unregister(&gbefb_driver);
+                        platform_driver_unregister(&gbefb_driver);
                 }
         }
         return ret;
@@ -1282,7 +1281,7 @@ int __init gbefb_init(void)
 void __exit gbefb_exit(void)
 {
         platform_device_unregister(gbefb_device);
-        driver_unregister(&gbefb_driver);
+        platform_driver_unregister(&gbefb_driver);
 }
 
 module_init(gbefb_init);