[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/char/watchdog/mpcore_wdt.c b/drivers/char/watchdog/mpcore_wdt.c
index da631c1..9defcf8 100644
--- a/drivers/char/watchdog/mpcore_wdt.c
+++ b/drivers/char/watchdog/mpcore_wdt.c
@@ -139,7 +139,7 @@
*/
static int mpcore_wdt_open(struct inode *inode, struct file *file)
{
- struct mpcore_wdt *wdt = dev_get_drvdata(&mpcore_wdt_dev->dev);
+ struct mpcore_wdt *wdt = platform_get_drvdata(mpcore_wdt_dev);
if (test_and_set_bit(0, &wdt->timer_alive))
return -EBUSY;
@@ -291,9 +291,9 @@
* System shutdown handler. Turn off the watchdog if we're
* restarting or halting the system.
*/
-static void mpcore_wdt_shutdown(struct device *_dev)
+static void mpcore_wdt_shutdown(struct platform_device *dev)
{
- struct mpcore_wdt *wdt = dev_get_drvdata(_dev);
+ struct mpcore_wdt *wdt = platform_get_drvdata(dev);
if (system_state == SYSTEM_RESTART || system_state == SYSTEM_HALT)
mpcore_wdt_stop(wdt);
@@ -317,9 +317,8 @@
.fops = &mpcore_wdt_fops,
};
-static int __devinit mpcore_wdt_probe(struct device *_dev)
+static int __devinit mpcore_wdt_probe(struct platform_device *dev)
{
- struct platform_device *dev = to_platform_device(_dev);
struct mpcore_wdt *wdt;
struct resource *res;
int ret;
@@ -364,7 +363,7 @@
}
mpcore_wdt_stop(wdt);
- dev_set_drvdata(&dev->dev, wdt);
+ platform_set_drvdata(&dev->dev, wdt);
mpcore_wdt_dev = dev;
return 0;
@@ -379,11 +378,11 @@
return ret;
}
-static int __devexit mpcore_wdt_remove(struct device *dev)
+static int __devexit mpcore_wdt_remove(struct platform_device *dev)
{
- struct mpcore_wdt *wdt = dev_get_drvdata(dev);
+ struct mpcore_wdt *wdt = platform_get_drvdata(dev);
- dev_set_drvdata(dev, NULL);
+ platform_set_drvdata(dev, NULL);
misc_deregister(&mpcore_wdt_miscdev);
@@ -395,13 +394,14 @@
return 0;
}
-static struct device_driver mpcore_wdt_driver = {
- .owner = THIS_MODULE,
- .name = "mpcore_wdt",
- .bus = &platform_bus_type,
+static struct platform_driver mpcore_wdt_driver = {
.probe = mpcore_wdt_probe,
.remove = __devexit_p(mpcore_wdt_remove),
.shutdown = mpcore_wdt_shutdown,
+ .driver = {
+ .owner = THIS_MODULE,
+ .name = "mpcore_wdt",
+ },
};
static char banner[] __initdata = KERN_INFO "MPcore Watchdog Timer: 0.1. mpcore_noboot=%d mpcore_margin=%d sec (nowayout= %d)\n";
@@ -420,12 +420,12 @@
printk(banner, mpcore_noboot, mpcore_margin, nowayout);
- return driver_register(&mpcore_wdt_driver);
+ return platform_driver_register(&mpcore_wdt_driver);
}
static void __exit mpcore_wdt_exit(void)
{
- driver_unregister(&mpcore_wdt_driver);
+ platform_driver_unregister(&mpcore_wdt_driver);
}
module_init(mpcore_wdt_init);