diff options
Diffstat (limited to 'drivers/watchdog/gpio_wdt.c')
| -rw-r--r-- | drivers/watchdog/gpio_wdt.c | 38 |
1 files changed, 4 insertions, 34 deletions
diff --git a/drivers/watchdog/gpio_wdt.c b/drivers/watchdog/gpio_wdt.c index 90d59d3f38a3..ba066e4a707b 100644 --- a/drivers/watchdog/gpio_wdt.c +++ b/drivers/watchdog/gpio_wdt.c @@ -12,10 +12,8 @@ #include <linux/err.h> #include <linux/delay.h> #include <linux/module.h> -#include <linux/notifier.h> #include <linux/of_gpio.h> #include <linux/platform_device.h> -#include <linux/reboot.h> #include <linux/watchdog.h> #define SOFT_TIMEOUT_MIN 1 @@ -36,7 +34,6 @@ struct gpio_wdt_priv { unsigned int hw_algo; unsigned int hw_margin; unsigned long last_jiffies; - struct notifier_block notifier; struct timer_list timer; struct watchdog_device wdd; }; @@ -57,7 +54,8 @@ static void gpio_wdt_hwping(unsigned long data) if (priv->armed && time_after(jiffies, priv->last_jiffies + msecs_to_jiffies(wdd->timeout * 1000))) { - dev_crit(wdd->dev, "Timer expired. System will reboot soon!\n"); + dev_crit(wdd->parent, + "Timer expired. System will reboot soon!\n"); return; } @@ -126,26 +124,6 @@ static int gpio_wdt_set_timeout(struct watchdog_device *wdd, unsigned int t) return gpio_wdt_ping(wdd); } -static int gpio_wdt_notify_sys(struct notifier_block *nb, unsigned long code, - void *unused) -{ - struct gpio_wdt_priv *priv = container_of(nb, struct gpio_wdt_priv, - notifier); - - mod_timer(&priv->timer, 0); - - switch (code) { - case SYS_HALT: - case SYS_POWER_OFF: - gpio_wdt_disable(priv); - break; - default: - break; - } - - return NOTIFY_DONE; -} - static const struct watchdog_info gpio_wdt_ident = { .options = WDIOF_MAGICCLOSE | WDIOF_KEEPALIVEPING | WDIOF_SETTIMEOUT, @@ -224,23 +202,16 @@ static int gpio_wdt_probe(struct platform_device *pdev) setup_timer(&priv->timer, gpio_wdt_hwping, (unsigned long)&priv->wdd); + watchdog_stop_on_reboot(&priv->wdd); + ret = watchdog_register_device(&priv->wdd); if (ret) return ret; - priv->notifier.notifier_call = gpio_wdt_notify_sys; - ret = register_reboot_notifier(&priv->notifier); - if (ret) - goto error_unregister; - if (priv->always_running) gpio_wdt_start_impl(priv); return 0; - -error_unregister: - watchdog_unregister_device(&priv->wdd); - return ret; } static int gpio_wdt_remove(struct platform_device *pdev) @@ -248,7 +219,6 @@ static int gpio_wdt_remove(struct platform_device *pdev) struct gpio_wdt_priv *priv = platform_get_drvdata(pdev); del_timer_sync(&priv->timer); - unregister_reboot_notifier(&priv->notifier); watchdog_unregister_device(&priv->wdd); return 0; |