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[WATCHDOG] ib700wdt.c - convert to platform_device

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Convert the ib700wdt watchdog into a platform_device

Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
This commit is contained in:
Wim Van Sebroeck 2007-01-27 22:39:46 +01:00
parent e42162a46d
commit 745ac1ea6e
1 changed files with 47 additions and 6 deletions
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53
drivers/char/watchdog/ib700wdt.c
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@ -42,16 +42,20 @@
#include <linux/init.h> #include <linux/init.h>
#include <linux/spinlock.h> #include <linux/spinlock.h>
#include <linux/moduleparam.h> #include <linux/moduleparam.h>
#include <linux/platform_device.h>
#include <asm/io.h> #include <asm/io.h>
#include <asm/uaccess.h> #include <asm/uaccess.h>
#include <asm/system.h> #include <asm/system.h>
static struct platform_device *ibwdt_platform_device;
static unsigned long ibwdt_is_open; static unsigned long ibwdt_is_open;
static spinlock_t ibwdt_lock; static spinlock_t ibwdt_lock;
static char expect_close; static char expect_close;
#define PFX "ib700wdt: " /* Module information */
#define DRV_NAME "ib700wdt"
#define PFX DRV_NAME ": "
/* /*
* *
@ -326,12 +330,10 @@ static struct notifier_block ibwdt_notifier = {
* Init & exit routines * Init & exit routines
*/ */
static int __init ibwdt_init(void) static int __devinit ibwdt_probe(struct platform_device *dev)
{ {
int res; int res;
printk(KERN_INFO PFX "WDT driver for IB700 single board computer initialising.\n");
spin_lock_init(&ibwdt_lock); spin_lock_init(&ibwdt_lock);
#if WDT_START != WDT_STOP #if WDT_START != WDT_STOP
@ -373,8 +375,7 @@ out_nostopreg:
return res; return res;
} }
static void __exit static int __devexit ibwdt_remove(struct platform_device *dev)
ibwdt_exit(void)
{ {
misc_deregister(&ibwdt_miscdev); misc_deregister(&ibwdt_miscdev);
unregister_reboot_notifier(&ibwdt_notifier); unregister_reboot_notifier(&ibwdt_notifier);
@ -382,6 +383,46 @@ ibwdt_exit(void)
#if WDT_START != WDT_STOP #if WDT_START != WDT_STOP
release_region(WDT_STOP,1); release_region(WDT_STOP,1);
#endif #endif
return 0;
}
static struct platform_driver ibwdt_driver = {
.probe = ibwdt_probe,
.remove = __devexit_p(ibwdt_remove),
.driver = {
.owner = THIS_MODULE,
.name = DRV_NAME,
},
};
static int __init ibwdt_init(void)
{
int err;
printk(KERN_INFO PFX "WDT driver for IB700 single board computer initialising.\n");
err = platform_driver_register(&ibwdt_driver);
if (err)
return err;
ibwdt_platform_device = platform_device_register_simple(DRV_NAME, -1, NULL, 0);
if (IS_ERR(ibwdt_platform_device)) {
err = PTR_ERR(ibwdt_platform_device);
goto unreg_platform_driver;
}
return 0;
unreg_platform_driver:
platform_driver_unregister(&ibwdt_driver);
return err;
}
static void __exit ibwdt_exit(void)
{
platform_device_unregister(ibwdt_platform_device);
platform_driver_unregister(&ibwdt_driver);
printk(KERN_INFO PFX "Watchdog Module Unloaded.\n");
} }
module_init(ibwdt_init); module_init(ibwdt_init);