[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 <wim@iguana.be>
diff --git a/drivers/char/watchdog/advantechwdt.c b/drivers/char/watchdog/advantechwdt.c
index 528a417..8121cc2 100644
--- a/drivers/char/watchdog/advantechwdt.c
+++ b/drivers/char/watchdog/advantechwdt.c
@@ -35,8 +35,6 @@
#include <linux/watchdog.h>
#include <linux/fs.h>
#include <linux/ioport.h>
-#include <linux/notifier.h>
-#include <linux/reboot.h>
#include <linux/platform_device.h>
#include <linux/init.h>
@@ -225,21 +223,6 @@
}
/*
- * 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
*/
@@ -259,15 +242,6 @@
};
/*
- * 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 @@
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 @@
out:
return ret;
-unreg_reboot:
- unregister_reboot_notifier(&advwdt_notifier);
unreg_regions:
release_region(wdt_start, 1);
unreg_stop:
@@ -332,7 +297,6 @@
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 @@
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,