diff options
| author | Rafał Miłecki <zajec5@gmail.com> | 2015-01-25 11:40:57 +0100 |
|---|---|---|
| committer | Wim Van Sebroeck <wim@iguana.be> | 2015-02-17 21:33:27 +0100 |
| commit | 1cc7495c60879eeeda52385a70c99c4cbaace7ef (patch) | |
| tree | 2cba15b6cfc6e2607f0fbdd0f52242222eb56cb5 | |
| parent | ba804a9510df555c42c2be6c340960879afe39d2 (diff) | |
watchdog: bcm47xx_wdt.c: add restart handler support
Just like in case of other watchdog drivers, use the new kernel core
API to provide restart support.
Signed-off-by: Rafał Miłecki <zajec5@gmail.com>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
| -rw-r--r-- | drivers/watchdog/bcm47xx_wdt.c | 21 | ||||
| -rw-r--r-- | include/linux/bcm47xx_wdt.h | 1 |
2 files changed, 21 insertions, 1 deletions
diff --git a/drivers/watchdog/bcm47xx_wdt.c b/drivers/watchdog/bcm47xx_wdt.c index 9816485f682..b28a072abf7 100644 --- a/drivers/watchdog/bcm47xx_wdt.c +++ b/drivers/watchdog/bcm47xx_wdt.c @@ -169,6 +169,17 @@ static int bcm47xx_wdt_notify_sys(struct notifier_block *this, return NOTIFY_DONE; } +static int bcm47xx_wdt_restart(struct notifier_block *this, unsigned long mode, + void *cmd) +{ + struct bcm47xx_wdt *wdt; + + wdt = container_of(this, struct bcm47xx_wdt, restart_handler); + wdt->timer_set(wdt, 1); + + return NOTIFY_DONE; +} + static struct watchdog_ops bcm47xx_wdt_soft_ops = { .owner = THIS_MODULE, .start = bcm47xx_wdt_soft_start, @@ -209,15 +220,23 @@ static int bcm47xx_wdt_probe(struct platform_device *pdev) if (ret) goto err_timer; - ret = watchdog_register_device(&wdt->wdd); + wdt->restart_handler.notifier_call = &bcm47xx_wdt_restart; + wdt->restart_handler.priority = 64; + ret = register_restart_handler(&wdt->restart_handler); if (ret) goto err_notifier; + ret = watchdog_register_device(&wdt->wdd); + if (ret) + goto err_handler; + dev_info(&pdev->dev, "BCM47xx Watchdog Timer enabled (%d seconds%s%s)\n", timeout, nowayout ? ", nowayout" : "", soft ? ", Software Timer" : ""); return 0; +err_handler: + unregister_restart_handler(&wdt->restart_handler); err_notifier: unregister_reboot_notifier(&wdt->notifier); err_timer: diff --git a/include/linux/bcm47xx_wdt.h b/include/linux/bcm47xx_wdt.h index b708786d4cb..5582c211f59 100644 --- a/include/linux/bcm47xx_wdt.h +++ b/include/linux/bcm47xx_wdt.h @@ -16,6 +16,7 @@ struct bcm47xx_wdt { struct watchdog_device wdd; struct notifier_block notifier; + struct notifier_block restart_handler; struct timer_list soft_timer; atomic_t soft_ticks; |