From: Fabio Estevam <[email protected]> commit e56d48e92b1017b6a8dbe64923a889283733fd96 upstream.
Currently when running the samples/watchdog/watchdog-simple.c application and forcing a kernel crash by doing: # ./watchdog-simple & # echo c > /proc/sysrq-trigger The system does not reboot as expected. Fix it by calling imx_sc_wdt_set_timeout() to configure the i.MX8QXP watchdog with a proper timeout. Cc: <[email protected]> Fixes: 986857acbc9a ("watchdog: imx_sc: Add i.MX system controller watchdog support") Reported-by: Breno Lima <[email protected]> Signed-off-by: Fabio Estevam <[email protected]> Reviewed-by: Guenter Roeck <[email protected]> Tested-by: Breno Lima <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Guenter Roeck <[email protected]> Signed-off-by: Wim Van Sebroeck <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]> --- drivers/watchdog/imx_sc_wdt.c | 5 +++++ 1 file changed, 5 insertions(+) --- a/drivers/watchdog/imx_sc_wdt.c +++ b/drivers/watchdog/imx_sc_wdt.c @@ -177,6 +177,11 @@ static int imx_sc_wdt_probe(struct platf wdog->timeout = DEFAULT_TIMEOUT; watchdog_init_timeout(wdog, 0, dev); + + ret = imx_sc_wdt_set_timeout(wdog, wdog->timeout); + if (ret) + return ret; + watchdog_stop_on_reboot(wdog); watchdog_stop_on_unregister(wdog);
