diff options
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/watchdog/lpc18xx_wdt.c | 52 |
1 files changed, 21 insertions, 31 deletions
diff --git a/drivers/watchdog/lpc18xx_wdt.c b/drivers/watchdog/lpc18xx_wdt.c index ab7b8b1..6914c83 100644 --- a/drivers/watchdog/lpc18xx_wdt.c +++ b/drivers/watchdog/lpc18xx_wdt.c @@ -18,7 +18,6 @@ #include <linux/module.h> #include <linux/of.h> #include <linux/platform_device.h> -#include <linux/reboot.h> #include <linux/watchdog.h> /* Registers */ @@ -59,7 +58,6 @@ struct lpc18xx_wdt_dev { unsigned long clk_rate; void __iomem *base; struct timer_list timer; - struct notifier_block restart_handler; spinlock_t lock; }; @@ -155,27 +153,9 @@ static int lpc18xx_wdt_start(struct watchdog_device *wdt_dev) return 0; } -static struct watchdog_info lpc18xx_wdt_info = { - .identity = "NXP LPC18xx Watchdog", - .options = WDIOF_SETTIMEOUT | - WDIOF_KEEPALIVEPING | - WDIOF_MAGICCLOSE, -}; - -static const struct watchdog_ops lpc18xx_wdt_ops = { - .owner = THIS_MODULE, - .start = lpc18xx_wdt_start, - .stop = lpc18xx_wdt_stop, - .ping = lpc18xx_wdt_feed, - .set_timeout = lpc18xx_wdt_set_timeout, - .get_timeleft = lpc18xx_wdt_get_timeleft, -}; - -static int lpc18xx_wdt_restart(struct notifier_block *this, unsigned long mode, - void *cmd) +static int lpc18xx_wdt_restart(struct watchdog_device *wdt_dev) { - struct lpc18xx_wdt_dev *lpc18xx_wdt = container_of(this, - struct lpc18xx_wdt_dev, restart_handler); + struct lpc18xx_wdt_dev *lpc18xx_wdt = watchdog_get_drvdata(wdt_dev); unsigned long flags; int val; @@ -197,9 +177,26 @@ static int lpc18xx_wdt_restart(struct notifier_block *this, unsigned long mode, spin_unlock_irqrestore(&lpc18xx_wdt->lock, flags); - return NOTIFY_OK; + return 0; } +static struct watchdog_info lpc18xx_wdt_info = { + .identity = "NXP LPC18xx Watchdog", + .options = WDIOF_SETTIMEOUT | + WDIOF_KEEPALIVEPING | + WDIOF_MAGICCLOSE, +}; + +static const struct watchdog_ops lpc18xx_wdt_ops = { + .owner = THIS_MODULE, + .start = lpc18xx_wdt_start, + .stop = lpc18xx_wdt_stop, + .ping = lpc18xx_wdt_feed, + .set_timeout = lpc18xx_wdt_set_timeout, + .get_timeleft = lpc18xx_wdt_get_timeleft, + .restart = lpc18xx_wdt_restart, +}; + static int lpc18xx_wdt_probe(struct platform_device *pdev) { struct lpc18xx_wdt_dev *lpc18xx_wdt; @@ -273,6 +270,7 @@ static int lpc18xx_wdt_probe(struct platform_device *pdev) (unsigned long)&lpc18xx_wdt->wdt_dev); watchdog_set_nowayout(&lpc18xx_wdt->wdt_dev, nowayout); + watchdog_set_restart_priority(&lpc18xx_wdt->wdt_dev, 128); platform_set_drvdata(pdev, lpc18xx_wdt); @@ -280,12 +278,6 @@ static int lpc18xx_wdt_probe(struct platform_device *pdev) if (ret) goto disable_wdt_clk; - lpc18xx_wdt->restart_handler.notifier_call = lpc18xx_wdt_restart; - lpc18xx_wdt->restart_handler.priority = 128; - ret = register_restart_handler(&lpc18xx_wdt->restart_handler); - if (ret) - dev_warn(dev, "failed to register restart handler: %d\n", ret); - return 0; disable_wdt_clk: @@ -306,8 +298,6 @@ static int lpc18xx_wdt_remove(struct platform_device *pdev) { struct lpc18xx_wdt_dev *lpc18xx_wdt = platform_get_drvdata(pdev); - unregister_restart_handler(&lpc18xx_wdt->restart_handler); - dev_warn(&pdev->dev, "I quit now, hardware will probably reboot!\n"); del_timer(&lpc18xx_wdt->timer); |