[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, 13 insertions, 14 deletions

diff --git a/drivers/i2c/busses/i2c-iop3xx.c b/drivers/i2c/busses/i2c-iop3xx.c
index cfae4ad00fae..1414851a17b8 100644
--- a/drivers/i2c/busses/i2c-iop3xx.c
+++ b/drivers/i2c/busses/i2c-iop3xx.c
@@ -405,10 +405,9 @@ static struct i2c_algorithm iop3xx_i2c_algo = {
 };
 
 static int 
-iop3xx_i2c_remove(struct device *device)
+iop3xx_i2c_remove(struct platform_device *pdev)
 {
-        struct platform_device *pdev = to_platform_device(device);
-        struct i2c_adapter *padapter = dev_get_drvdata(&pdev->dev);
+        struct i2c_adapter *padapter = platform_get_drvdata(pdev);
         struct i2c_algo_iop3xx_data *adapter_data = 
                 (struct i2c_algo_iop3xx_data *)padapter->algo_data;
         struct resource *res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
@@ -426,15 +425,14 @@ iop3xx_i2c_remove(struct device *device)
         kfree(adapter_data);
         kfree(padapter);
 
-        dev_set_drvdata(&pdev->dev, NULL);
+        platform_set_drvdata(pdev, NULL);
 
         return 0;
 }
 
 static int 
-iop3xx_i2c_probe(struct device *dev)
+iop3xx_i2c_probe(struct platform_device *pdev)
 {
-        struct platform_device *pdev = to_platform_device(dev);
         struct resource *res;
         int ret;
         struct i2c_adapter *new_adapter;
@@ -499,7 +497,7 @@ iop3xx_i2c_probe(struct device *dev)
         iop3xx_i2c_set_slave_addr(adapter_data);
         iop3xx_i2c_enable(adapter_data);
 
-        dev_set_drvdata(&pdev->dev, new_adapter);
+        platform_set_drvdata(pdev, new_adapter);
         new_adapter->algo_data = adapter_data;
 
         i2c_add_adapter(new_adapter);
@@ -523,24 +521,25 @@ out:
 }
 
 
-static struct device_driver iop3xx_i2c_driver = {
-        .owner          = THIS_MODULE,
-        .name           = "IOP3xx-I2C",
-        .bus            = &platform_bus_type,
+static struct platform_driver iop3xx_i2c_driver = {
         .probe          = iop3xx_i2c_probe,
-        .remove         = iop3xx_i2c_remove
+        .remove         = iop3xx_i2c_remove,
+        .driver         = {
+                .owner  = THIS_MODULE,
+                .name   = "IOP3xx-I2C",
+        },
 };
 
 static int __init 
 i2c_iop3xx_init (void)
 {
-        return driver_register(&iop3xx_i2c_driver);
+        return platform_driver_register(&iop3xx_i2c_driver);
 }
 
 static void __exit 
 i2c_iop3xx_exit (void)
 {
-        driver_unregister(&iop3xx_i2c_driver);
+        platform_driver_unregister(&iop3xx_i2c_driver);
         return;
 }