On 05/05/2015 10:11 AM, Marc Kleine-Budde wrote: > On 04/22/2015 01:11 PM, Timo Kokkonen wrote: >> Fill in the HW capabilities in watchdog_device structure and call >> watchdgog_init_params() to let watchdog core to init itself >> properly. The watchdog core can then ping stopped watchdog and the >> timer code in the driver can be removed. >> >> Signed-off-by: Timo Kokkonen > > This patch changes the default behaviour of the imx watchdog. Without > the patch: If the system boot with watchdog enabled (by the bootloader), > the driver sets up a threads to pet the watchdog. With the patch, > imx2_wdt_ping() is called once during probe but the thread is not > started. There are no timeout or early_timeout paremters in the DT or in > the kernel command line. > > I don't like the old behaviour, but I think there are some setups that > rely on this feature. BTW: the start-thread-if-wd-is-active feature was added in: faad5de0b104 watchdog: imx2_wdt: convert to watchdog core api Marc -- Pengutronix e.K. | Marc Kleine-Budde | Industrial Linux Solutions | Phone: +49-231-2826-924 | Vertretung West/Dortmund | Fax: +49-5121-206917-5555 | Amtsgericht Hildesheim, HRA 2686 | http://www.pengutronix.de |