From mboxrd@z Thu Jan 1 00:00:00 1970 From: Mika Westerberg Subject: [PATCH] watchdog: wdat_wdt: Ping the watchdog on resume Date: Thu, 20 Oct 2016 18:03:36 +0300 Message-ID: <20161020150336.97791-1-mika.westerberg@linux.intel.com> Return-path: Sender: linux-watchdog-owner-u79uwXL29TY76Z2rM5mHXA@public.gmane.org To: linux-watchdog-u79uwXL29TY76Z2rM5mHXA@public.gmane.org Cc: Wim Van Sebroeck , Guenter Roeck , "Rafael J. Wysocki" , Mika Westerberg , linux-acpi-u79uwXL29TY76Z2rM5mHXA@public.gmane.org List-Id: linux-acpi@vger.kernel.org It turns out we need to ping the watchdog hardware on resume when we re-program it. Otherwise this results inadvertent reset to trigger right after the resume is completed. Signed-off-by: Mika Westerberg --- drivers/watchdog/wdat_wdt.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/drivers/watchdog/wdat_wdt.c b/drivers/watchdog/wdat_wdt.c index e473e3b23720..6d1fbda0f461 100644 --- a/drivers/watchdog/wdat_wdt.c +++ b/drivers/watchdog/wdat_wdt.c @@ -499,6 +499,10 @@ static int wdat_wdt_resume_noirq(struct device *dev) ret = wdat_wdt_enable_reboot(wdat); if (ret) return ret; + + ret = wdat_wdt_ping(&wdat->wdd); + if (ret) + return ret; } return wdat_wdt_start(&wdat->wdd); -- 2.9.3 -- To unsubscribe from this list: send the line "unsubscribe linux-watchdog" in the body of a message to majordomo-u79uwXL29TY76Z2rM5mHXA@public.gmane.org More majordomo info at http://vger.kernel.org/majordomo-info.html