From e86adc3f631bd9d773f1028d6d88c9f5a02b07a5 Mon Sep 17 00:00:00 2001 From: Damien Riegel Date: Mon, 16 Nov 2015 12:28:08 -0500 Subject: [PATCH] watchdog: mtk_wdt: use core restart handler Get rid of the custom restart handler by using the one provided by the watchdog core. Signed-off-by: Damien Riegel Reviewed-by: Guenter Roeck Reviewed-by: Vivien Didelot Signed-off-by: Guenter Roeck Signed-off-by: Wim Van Sebroeck --- drivers/watchdog/mtk_wdt.c | 22 +++++----------------- 1 file changed, 5 insertions(+), 17 deletions(-) diff --git a/drivers/watchdog/mtk_wdt.c b/drivers/watchdog/mtk_wdt.c index b751f43d76ed..b78776c05554 100644 --- a/drivers/watchdog/mtk_wdt.c +++ b/drivers/watchdog/mtk_wdt.c @@ -28,8 +28,6 @@ #include #include #include -#include -#include #include #define WDT_MAX_TIMEOUT 31 @@ -64,16 +62,13 @@ static unsigned int timeout = WDT_MAX_TIMEOUT; struct mtk_wdt_dev { struct watchdog_device wdt_dev; void __iomem *wdt_base; - struct notifier_block restart_handler; }; -static int mtk_reset_handler(struct notifier_block *this, unsigned long mode, - void *cmd) +static int mtk_wdt_restart(struct watchdog_device *wdt_dev) { - struct mtk_wdt_dev *mtk_wdt; + struct mtk_wdt_dev *mtk_wdt = watchdog_get_drvdata(wdt_dev); void __iomem *wdt_base; - mtk_wdt = container_of(this, struct mtk_wdt_dev, restart_handler); wdt_base = mtk_wdt->wdt_base; while (1) { @@ -81,7 +76,7 @@ static int mtk_reset_handler(struct notifier_block *this, unsigned long mode, mdelay(5); } - return NOTIFY_DONE; + return 0; } static int mtk_wdt_ping(struct watchdog_device *wdt_dev) @@ -161,6 +156,7 @@ static const struct watchdog_ops mtk_wdt_ops = { .stop = mtk_wdt_stop, .ping = mtk_wdt_ping, .set_timeout = mtk_wdt_set_timeout, + .restart = mtk_wdt_restart, }; static int mtk_wdt_probe(struct platform_device *pdev) @@ -189,6 +185,7 @@ static int mtk_wdt_probe(struct platform_device *pdev) watchdog_init_timeout(&mtk_wdt->wdt_dev, timeout, &pdev->dev); watchdog_set_nowayout(&mtk_wdt->wdt_dev, nowayout); + watchdog_set_restart_priority(&mtk_wdt->wdt_dev, 128); watchdog_set_drvdata(&mtk_wdt->wdt_dev, mtk_wdt); @@ -198,13 +195,6 @@ static int mtk_wdt_probe(struct platform_device *pdev) if (unlikely(err)) return err; - mtk_wdt->restart_handler.notifier_call = mtk_reset_handler; - mtk_wdt->restart_handler.priority = 128; - err = register_restart_handler(&mtk_wdt->restart_handler); - if (err) - dev_warn(&pdev->dev, - "cannot register restart handler (err=%d)\n", err); - dev_info(&pdev->dev, "Watchdog enabled (timeout=%d sec, nowayout=%d)\n", mtk_wdt->wdt_dev.timeout, nowayout); @@ -223,8 +213,6 @@ static int mtk_wdt_remove(struct platform_device *pdev) { struct mtk_wdt_dev *mtk_wdt = platform_get_drvdata(pdev); - unregister_restart_handler(&mtk_wdt->restart_handler); - watchdog_unregister_device(&mtk_wdt->wdt_dev); return 0; -- 2.20.1