[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, 14 insertions, 19 deletions

diff --git a/drivers/mtd/maps/bast-flash.c b/drivers/mtd/maps/bast-flash.c
index b7858eb93534..51f962dd7e31 100644
--- a/drivers/mtd/maps/bast-flash.c
+++ b/drivers/mtd/maps/bast-flash.c
@@ -63,11 +63,6 @@ struct bast_flash_info {
 
 static const char *probes[] = { "RedBoot", "cmdlinepart", NULL };
 
-static struct bast_flash_info *to_bast_info(struct device *dev)
-{
-        return (struct bast_flash_info *)dev_get_drvdata(dev);
-}
-
 static void bast_flash_setrw(int to)
 {
         unsigned int val;
@@ -87,11 +82,11 @@ static void bast_flash_setrw(int to)
         local_irq_restore(flags);
 }
 
-static int bast_flash_remove(struct device *dev)
+static int bast_flash_remove(struct platform_device *pdev)
 {
-        struct bast_flash_info *info = to_bast_info(dev);
+        struct bast_flash_info *info = platform_get_drvdata(pdev);
 
-        dev_set_drvdata(dev, NULL);
+        platform_set_drvdata(pdev, NULL);
 
         if (info == NULL)
                 return 0;
@@ -116,9 +111,8 @@ static int bast_flash_remove(struct device *dev)
         return 0;
 }
 
-static int bast_flash_probe(struct device *dev)
+static int bast_flash_probe(struct platform_device *pdev)
 {
-        struct platform_device *pdev = to_platform_device(dev);
         struct bast_flash_info *info;
         struct resource *res;
         int err = 0;
@@ -131,13 +125,13 @@ static int bast_flash_probe(struct device *dev)
         }
 
         memzero(info, sizeof(*info));
-        dev_set_drvdata(dev, info);
+        platform_set_drvdata(pdev, info);
 
         res = pdev->resource;  /* assume that the flash has one resource */
 
         info->map.phys = res->start;
         info->map.size = res->end - res->start + 1;
-        info->map.name = dev->bus_id;
+        info->map.name = pdev->dev.bus_id;      
         info->map.bankwidth = 2;
 
         if (info->map.size > AREA_MAXSIZE)
@@ -199,27 +193,28 @@ static int bast_flash_probe(struct device *dev)
         /* fall through to exit error */
 
  exit_error:
-        bast_flash_remove(dev);
+        bast_flash_remove(pdev);
         return err;
 }
 
-static struct device_driver bast_flash_driver = {
-        .name           = "bast-nor",
-        .owner          = THIS_MODULE,
-        .bus            = &platform_bus_type,
+static struct platform_driver bast_flash_driver = {
         .probe          = bast_flash_probe,
         .remove         = bast_flash_remove,
+        .driver         = {
+                .name   = "bast-nor",
+                .owner  = THIS_MODULE,
+        },
 };
 
 static int __init bast_flash_init(void)
 {
         printk("BAST NOR-Flash Driver, (c) 2004 Simtec Electronics\n");
-        return driver_register(&bast_flash_driver);
+        return platform_driver_register(&bast_flash_driver);
 }
 
 static void __exit bast_flash_exit(void)
 {
-        driver_unregister(&bast_flash_driver);
+        platform_driver_unregister(&bast_flash_driver);
 }
 
 module_init(bast_flash_init);