[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, 18 insertions, 20 deletions

diff --git a/drivers/net/smc91x.c b/drivers/net/smc91x.c
index 74d5f1a6fdea..c91e2e81f131 100644
--- a/drivers/net/smc91x.c
+++ b/drivers/net/smc91x.c
@@ -2183,9 +2183,8 @@ static void smc_release_datacs(struct platform_device *pdev, struct net_device *
  *      0 --> there is a device
  *      anything else, error
  */
-static int smc_drv_probe(struct device *dev)
+static int smc_drv_probe(struct platform_device *pdev)
 {
-        struct platform_device *pdev = to_platform_device(dev);
         struct net_device *ndev;
         struct resource *res;
         unsigned int __iomem *addr;
@@ -2212,7 +2211,7 @@ static int smc_drv_probe(struct device *dev)
                 goto out_release_io;
         }
         SET_MODULE_OWNER(ndev);
-        SET_NETDEV_DEV(ndev, dev);
+        SET_NETDEV_DEV(ndev, &pdev->dev);
 
         ndev->dma = (unsigned char)-1;
         ndev->irq = platform_get_irq(pdev, 0);
@@ -2233,7 +2232,7 @@ static int smc_drv_probe(struct device *dev)
                 goto out_release_attrib;
         }
 
-        dev_set_drvdata(dev, ndev);
+        platform_set_drvdata(pdev, ndev);
         ret = smc_probe(ndev, addr);
         if (ret != 0)
                 goto out_iounmap;
@@ -2249,7 +2248,7 @@ static int smc_drv_probe(struct device *dev)
         return 0;
 
  out_iounmap:
-        dev_set_drvdata(dev, NULL);
+        platform_set_drvdata(pdev, NULL);
         iounmap(addr);
  out_release_attrib:
         smc_release_attrib(pdev);
@@ -2263,14 +2262,13 @@ static int smc_drv_probe(struct device *dev)
         return ret;
 }
 
-static int smc_drv_remove(struct device *dev)
+static int smc_drv_remove(struct platform_device *pdev)
 {
-        struct platform_device *pdev = to_platform_device(dev);
-        struct net_device *ndev = dev_get_drvdata(dev);
+        struct net_device *ndev = platform_get_drvdata(pdev);
         struct smc_local *lp = netdev_priv(ndev);
         struct resource *res;
 
-        dev_set_drvdata(dev, NULL);
+        platform_set_drvdata(pdev, NULL);
 
         unregister_netdev(ndev);
 
@@ -2295,9 +2293,9 @@ static int smc_drv_remove(struct device *dev)
         return 0;
 }
 
-static int smc_drv_suspend(struct device *dev, pm_message_t state)
+static int smc_drv_suspend(struct platform_device *dev, pm_message_t state)
 {
-        struct net_device *ndev = dev_get_drvdata(dev);
+        struct net_device *ndev = platform_get_drvdata(dev);
 
         if (ndev) {
                 if (netif_running(ndev)) {
@@ -2309,14 +2307,13 @@ static int smc_drv_suspend(struct device *dev, pm_message_t state)
         return 0;
 }
 
-static int smc_drv_resume(struct device *dev)
+static int smc_drv_resume(struct platform_device *dev)
 {
-        struct platform_device *pdev = to_platform_device(dev);
-        struct net_device *ndev = dev_get_drvdata(dev);
+        struct net_device *ndev = platform_get_drvdata(dev);
 
         if (ndev) {
                 struct smc_local *lp = netdev_priv(ndev);
-                smc_enable_device(pdev);
+                smc_enable_device(dev);
                 if (netif_running(ndev)) {
                         smc_reset(ndev);
                         smc_enable(ndev);
@@ -2328,13 +2325,14 @@ static int smc_drv_resume(struct device *dev)
         return 0;
 }
 
-static struct device_driver smc_driver = {
-        .name           = CARDNAME,
-        .bus            = &platform_bus_type,
+static struct platform_driver smc_driver = {
         .probe          = smc_drv_probe,
         .remove         = smc_drv_remove,
         .suspend        = smc_drv_suspend,
         .resume         = smc_drv_resume,
+        .driver         = {
+                .name   = CARDNAME,
+        },
 };
 
 static int __init smc_init(void)
@@ -2348,12 +2346,12 @@ static int __init smc_init(void)
 #endif
 #endif
 
-        return driver_register(&smc_driver);
+        return platform_driver_register(&smc_driver);
 }
 
 static void __exit smc_cleanup(void)
 {
-        driver_unregister(&smc_driver);
+        platform_driver_unregister(&smc_driver);
 }
 
 module_init(smc_init);