[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, 17 deletions

diff --git a/drivers/usb/host/ohci-pxa27x.c b/drivers/usb/host/ohci-pxa27x.c
index 59e20568e8f9..9d65ec307990 100644
--- a/drivers/usb/host/ohci-pxa27x.c
+++ b/drivers/usb/host/ohci-pxa27x.c
@@ -290,9 +290,8 @@ static const struct hc_driver ohci_pxa27x_hc_driver = {
 
 /*-------------------------------------------------------------------------*/
 
-static int ohci_hcd_pxa27x_drv_probe(struct device *dev)
+static int ohci_hcd_pxa27x_drv_probe(struct platform_device *pdev)
 {
-        struct platform_device *pdev = to_platform_device(dev);
         int ret;
 
         pr_debug ("In ohci_hcd_pxa27x_drv_probe");
@@ -304,41 +303,39 @@ static int ohci_hcd_pxa27x_drv_probe(struct device *dev)
         return ret;
 }
 
-static int ohci_hcd_pxa27x_drv_remove(struct device *dev)
+static int ohci_hcd_pxa27x_drv_remove(struct platform_device *pdev)
 {
-        struct platform_device *pdev = to_platform_device(dev);
-        struct usb_hcd *hcd = dev_get_drvdata(dev);
+        struct usb_hcd *hcd = platform_get_drvdata(pdev);
 
         usb_hcd_pxa27x_remove(hcd, pdev);
         return 0;
 }
 
-static int ohci_hcd_pxa27x_drv_suspend(struct device *dev, pm_message_t state)
+static int ohci_hcd_pxa27x_drv_suspend(struct platform_device *dev, pm_message_t state)
 {
-//      struct platform_device *pdev = to_platform_device(dev);
-//      struct usb_hcd *hcd = dev_get_drvdata(dev);
+//      struct usb_hcd *hcd = platform_get_drvdata(dev);
         printk("%s: not implemented yet\n", __FUNCTION__);
 
         return 0;
 }
 
-static int ohci_hcd_pxa27x_drv_resume(struct device *dev)
+static int ohci_hcd_pxa27x_drv_resume(struct platform_device *dev)
 {
-//      struct platform_device *pdev = to_platform_device(dev);
-//      struct usb_hcd *hcd = dev_get_drvdata(dev);
+//      struct usb_hcd *hcd = platform_get_drvdata(dev);
         printk("%s: not implemented yet\n", __FUNCTION__);
 
         return 0;
 }
 
 
-static struct device_driver ohci_hcd_pxa27x_driver = {
-        .name           = "pxa27x-ohci",
-        .bus            = &platform_bus_type,
+static struct platform_driver ohci_hcd_pxa27x_driver = {
         .probe          = ohci_hcd_pxa27x_drv_probe,
         .remove         = ohci_hcd_pxa27x_drv_remove,
         .suspend        = ohci_hcd_pxa27x_drv_suspend, 
-        .resume         = ohci_hcd_pxa27x_drv_resume, 
+        .resume         = ohci_hcd_pxa27x_drv_resume,
+        .driver         = {
+                .name   = "pxa27x-ohci",
+        },
 };
 
 static int __init ohci_hcd_pxa27x_init (void)
@@ -347,12 +344,12 @@ static int __init ohci_hcd_pxa27x_init (void)
         pr_debug ("block sizes: ed %d td %d\n",
                 sizeof (struct ed), sizeof (struct td));
 
-        return driver_register(&ohci_hcd_pxa27x_driver);
+        return platform_driver_register(&ohci_hcd_pxa27x_driver);
 }
 
 static void __exit ohci_hcd_pxa27x_cleanup (void)
 {
-        driver_unregister(&ohci_hcd_pxa27x_driver);
+        platform_driver_unregister(&ohci_hcd_pxa27x_driver);
 }
 
 module_init (ohci_hcd_pxa27x_init);