[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>
diff --git a/drivers/video/vfb.c b/drivers/video/vfb.c
index 8794dc5..ffa1ad4 100644
--- a/drivers/video/vfb.c
+++ b/drivers/video/vfb.c
@@ -403,9 +403,8 @@
// This is called when the reference count goes to zero.
}
-static int __init vfb_probe(struct device *device)
+static int __init vfb_probe(struct platform_device *dev)
{
- struct platform_device *dev = to_platform_device(device);
struct fb_info *info;
int retval = -ENOMEM;
@@ -447,7 +446,7 @@
retval = register_framebuffer(info);
if (retval < 0)
goto err2;
- dev_set_drvdata(&dev->dev, info);
+ platform_set_drvdata(dev, info);
printk(KERN_INFO
"fb%d: Virtual frame buffer device, using %ldK of video memory\n",
@@ -462,9 +461,9 @@
return retval;
}
-static int vfb_remove(struct device *device)
+static int vfb_remove(struct platform_device *dev)
{
- struct fb_info *info = dev_get_drvdata(device);
+ struct fb_info *info = platform_get_drvdata(dev);
if (info) {
unregister_framebuffer(info);
@@ -474,11 +473,12 @@
return 0;
}
-static struct device_driver vfb_driver = {
- .name = "vfb",
- .bus = &platform_bus_type,
+static struct platform_driver vfb_driver = {
.probe = vfb_probe,
.remove = vfb_remove,
+ .driver = {
+ .name = "vfb",
+ },
};
static struct platform_device vfb_device = {
@@ -504,12 +504,12 @@
if (!vfb_enable)
return -ENXIO;
- ret = driver_register(&vfb_driver);
+ ret = platform_driver_register(&vfb_driver);
if (!ret) {
ret = platform_device_register(&vfb_device);
if (ret)
- driver_unregister(&vfb_driver);
+ platform_driver_unregister(&vfb_driver);
}
return ret;
}
@@ -520,7 +520,7 @@
static void __exit vfb_exit(void)
{
platform_device_unregister(&vfb_device);
- driver_unregister(&vfb_driver);
+ platform_driver_unregister(&vfb_driver);
}
module_exit(vfb_exit);