From 2e9c9cf44b17ef5fa1f360bc175ed7761daf3428 Mon Sep 17 00:00:00 2001 From: Wim Van Sebroeck Date: Thu, 11 Jan 2007 22:42:41 +0100 Subject: [WATCHDOG] advantechwdt.c - convert to platform_device part 2 Convert the reboot_notifier into the platform_device's shutdown method Signed-off-by: Wim Van Sebroeck --- drivers/char/watchdog/advantechwdt.c | 46 +++++++----------------------------- 1 file changed, 9 insertions(+), 37 deletions(-) (limited to 'drivers/char/watchdog/advantechwdt.c') diff --git a/drivers/char/watchdog/advantechwdt.c b/drivers/char/watchdog/advantechwdt.c index 528a417856c4..8121cc247343 100644 --- a/drivers/char/watchdog/advantechwdt.c +++ b/drivers/char/watchdog/advantechwdt.c @@ -35,8 +35,6 @@ #include #include #include -#include -#include #include #include @@ -224,21 +222,6 @@ advwdt_close(struct inode *inode, struct file *file) return 0; } -/* - * Notifier for system down - */ - -static int -advwdt_notify_sys(struct notifier_block *this, unsigned long code, - void *unused) -{ - if (code == SYS_DOWN || code == SYS_HALT) { - /* Turn the WDT off */ - advwdt_disable(); - } - return NOTIFY_DONE; -} - /* * Kernel Interfaces */ @@ -258,15 +241,6 @@ static struct miscdevice advwdt_miscdev = { .fops = &advwdt_fops, }; -/* - * The WDT needs to learn about soft shutdowns in order to - * turn the timebomb registers off. - */ - -static struct notifier_block advwdt_notifier = { - .notifier_call = advwdt_notify_sys, -}; - /* * Init & exit routines */ @@ -299,18 +273,11 @@ advwdt_probe(struct platform_device *dev) timeout); } - ret = register_reboot_notifier(&advwdt_notifier); - if (ret != 0) { - printk (KERN_ERR PFX "cannot register reboot notifier (err=%d)\n", - ret); - goto unreg_regions; - } - ret = misc_register(&advwdt_miscdev); if (ret != 0) { printk (KERN_ERR PFX "cannot register miscdev on minor=%d (err=%d)\n", WATCHDOG_MINOR, ret); - goto unreg_reboot; + goto unreg_regions; } printk (KERN_INFO PFX "initialized. timeout=%d sec (nowayout=%d)\n", @@ -318,8 +285,6 @@ advwdt_probe(struct platform_device *dev) out: return ret; -unreg_reboot: - unregister_reboot_notifier(&advwdt_notifier); unreg_regions: release_region(wdt_start, 1); unreg_stop: @@ -332,7 +297,6 @@ static int __devexit advwdt_remove(struct platform_device *dev) { misc_deregister(&advwdt_miscdev); - unregister_reboot_notifier(&advwdt_notifier); release_region(wdt_start,1); if(wdt_stop != wdt_start) release_region(wdt_stop,1); @@ -340,9 +304,17 @@ advwdt_remove(struct platform_device *dev) return 0; } +static void +advwdt_shutdown(struct platform_device *dev) +{ + /* Turn the WDT off if we have a soft shutdown */ + advwdt_disable(); +} + static struct platform_driver advwdt_driver = { .probe = advwdt_probe, .remove = __devexit_p(advwdt_remove), + .shutdown = advwdt_shutdown, .driver = { .owner = THIS_MODULE, .name = DRV_NAME, -- cgit v1.2.1