From: Tero Kristo <t-kristo@ti.com> [ Upstream commit 982bb70517aef2225bad1d802887b733db492cc0 ] Currently the watchdog core does not initialize the last_hw_keepalive time during watchdog startup. This will cause the watchdog to be pinged immediately if enough time has passed from the system boot-up time, and some types of watchdogs like K3 RTI does not like this. To avoid the issue, setup the last_hw_keepalive time during watchdog startup. Signed-off-by: Tero Kristo <t-kristo@ti.com> Reviewed-by: Guenter Roeck <linux@roeck-us.net> Link: https://lore.kernel.org/r/20200302200426.6492-3-t-kristo@ti.com Signed-off-by: Guenter Roeck <linux@roeck-us.net> Signed-off-by: Wim Van Sebroeck <wim@linux-watchdog.org> Signed-off-by: Sasha Levin <sashal@kernel.org> --- drivers/watchdog/watchdog_dev.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/watchdog/watchdog_dev.c b/drivers/watchdog/watchdog_dev.c index e64aa88..10b2090 100644 --- a/drivers/watchdog/watchdog_dev.c +++ b/drivers/watchdog/watchdog_dev.c @@ -264,6 +264,7 @@ static int watchdog_start(struct watchdog_device *wdd) if (err == 0) { set_bit(WDOG_ACTIVE, &wdd->status); wd_data->last_keepalive = started_at; + wd_data->last_hw_keepalive = started_at; watchdog_update_worker(wdd); } -- 1.8.3