watchdog: bcm63xx_wdt: improve platform part.
* fix devinit and devexit sections
* fix platform removal code so that the iounmap happens after the removal of the timer.
* changes the reboot_notifier by a platform shutdown method.
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
diff --git a/drivers/watchdog/bcm63xx_wdt.c b/drivers/watchdog/bcm63xx_wdt.c
index a1debc8..3c5045a 100644
--- a/drivers/watchdog/bcm63xx_wdt.c
+++ b/drivers/watchdog/bcm63xx_wdt.c
@@ -18,7 +18,6 @@
#include <linux/miscdevice.h>
#include <linux/module.h>
#include <linux/moduleparam.h>
-#include <linux/reboot.h>
#include <linux/types.h>
#include <linux/uaccess.h>
#include <linux/watchdog.h>
@@ -220,14 +219,6 @@
}
}
-static int bcm63xx_wdt_notify_sys(struct notifier_block *this,
- unsigned long code, void *unused)
-{
- if (code == SYS_DOWN || code == SYS_HALT)
- bcm63xx_wdt_pause();
- return NOTIFY_DONE;
-}
-
static const struct file_operations bcm63xx_wdt_fops = {
.owner = THIS_MODULE,
.llseek = no_llseek,
@@ -243,12 +234,8 @@
.fops = &bcm63xx_wdt_fops,
};
-static struct notifier_block bcm63xx_wdt_notifier = {
- .notifier_call = bcm63xx_wdt_notify_sys,
-};
-
-static int bcm63xx_wdt_probe(struct platform_device *pdev)
+static int __devinit bcm63xx_wdt_probe(struct platform_device *pdev)
{
int ret;
struct resource *r;
@@ -280,16 +267,10 @@
wdt_time);
}
- ret = register_reboot_notifier(&bcm63xx_wdt_notifier);
- if (ret) {
- dev_err(&pdev->dev, "failed to register reboot_notifier\n");
- goto unregister_timer;
- }
-
ret = misc_register(&bcm63xx_wdt_miscdev);
if (ret < 0) {
dev_err(&pdev->dev, "failed to register watchdog device\n");
- goto unregister_reboot_notifier;
+ goto unregister_timer;
}
dev_info(&pdev->dev, " started, timer margin: %d sec\n",
@@ -297,8 +278,6 @@
return 0;
-unregister_reboot_notifier:
- unregister_reboot_notifier(&bcm63xx_wdt_notifier);
unregister_timer:
bcm63xx_timer_unregister(TIMER_WDT_ID);
unmap:
@@ -306,25 +285,28 @@
return ret;
}
-static int bcm63xx_wdt_remove(struct platform_device *pdev)
+static int __devexit bcm63xx_wdt_remove(struct platform_device *pdev)
{
if (!nowayout)
bcm63xx_wdt_pause();
misc_deregister(&bcm63xx_wdt_miscdev);
-
- iounmap(bcm63xx_wdt_device.regs);
-
- unregister_reboot_notifier(&bcm63xx_wdt_notifier);
bcm63xx_timer_unregister(TIMER_WDT_ID);
-
+ iounmap(bcm63xx_wdt_device.regs);
return 0;
}
+static void bcm63xx_wdt_shutdown(struct platform_device *pdev)
+{
+ bcm63xx_wdt_pause();
+}
+
static struct platform_driver bcm63xx_wdt = {
.probe = bcm63xx_wdt_probe,
- .remove = bcm63xx_wdt_remove,
+ .remove = __devexit_p(bcm63xx_wdt_remove),
+ .shutdown = bcm63xx_wdt_shutdown,
.driver = {
+ .owner = THIS_MODULE,
.name = "bcm63xx-wdt",
}
};