[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, 11 insertions, 12 deletions

diff --git a/drivers/mtd/maps/integrator-flash.c b/drivers/mtd/maps/integrator-flash.c
index fe738fd8d6f8..a3ba52fbd868 100644
--- a/drivers/mtd/maps/integrator-flash.c
+++ b/drivers/mtd/maps/integrator-flash.c
@@ -67,9 +67,8 @@ static void armflash_set_vpp(struct map_info *map, int on)
 
 static const char *probes[] = { "cmdlinepart", "RedBoot", "afs", NULL };
 
-static int armflash_probe(struct device *_dev)
+static int armflash_probe(struct platform_device *dev)
 {
-        struct platform_device *dev = to_platform_device(_dev);
         struct flash_platform_data *plat = dev->dev.platform_data;
         struct resource *res = dev->resource;
         unsigned int size = res->end - res->start + 1;
@@ -138,7 +137,7 @@ static int armflash_probe(struct device *_dev)
         }
 
         if (err == 0)
-                dev_set_drvdata(&dev->dev, info);
+                platform_set_drvdata(dev, info);
 
         /*
          * If we got an error, free all resources.
@@ -163,12 +162,11 @@ static int armflash_probe(struct device *_dev)
         return err;
 }
 
-static int armflash_remove(struct device *_dev)
+static int armflash_remove(struct platform_device *dev)
 {
-        struct platform_device *dev = to_platform_device(_dev);
-        struct armflash_info *info = dev_get_drvdata(&dev->dev);
+        struct armflash_info *info = platform_get_drvdata(dev);
 
-        dev_set_drvdata(&dev->dev, NULL);
+        platform_set_drvdata(dev, NULL);
 
         if (info) {
                 if (info->mtd) {
@@ -190,21 +188,22 @@ static int armflash_remove(struct device *_dev)
         return 0;
 }
 
-static struct device_driver armflash_driver = {
-        .name           = "armflash",
-        .bus            = &platform_bus_type,
+static struct platform_driver armflash_driver = {
         .probe          = armflash_probe,
         .remove         = armflash_remove,
+        .driver         = {
+                .name   = "armflash",
+        },
 };
 
 static int __init armflash_init(void)
 {
-        return driver_register(&armflash_driver);
+        return platform_driver_register(&armflash_driver);
 }
 
 static void __exit armflash_exit(void)
 {
-        driver_unregister(&armflash_driver);
+        platform_driver_unregister(&armflash_driver);
 }
 
 module_init(armflash_init);