Hi Steve and Guenter, On Wed, May 16, 2018 at 07:35:13AM +0000, Steve Twiss wrote: > On 15 May 2018 19:44, Guenter Roeck wrote, > > > Subject: Re: [PATCH v2] watchdog: da9063: Fix setting/changing timeout > > > > On Wed, May 09, 2018 at 04:10:15PM +0200, Marco Felsch wrote: > > > Hi Steve, > > > > > > > > > That would be great looking forward to hear from you. I will prepare a v3 if it is. > > > > > Any updates ? > > > > Guenter > > Hi Guenter and Marco, > > Thank you for your patience. > The best advice I can give at the moment is: > > Please follow what has been done in the DA9062 and DA9053 device drivers. > https://elixir.bootlin.com/linux/latest/source/drivers/watchdog/da9062_wdt.c#L90 > https://elixir.bootlin.com/linux/latest/source/drivers/watchdog/da9052_wdt.c#L76 > > In these cases: > "setting TWDSCALE to zero for at least 150 us before writing the new value" Okay. I tested it without a delay and saw no issues but I will add the delay to be on the safe side. Is that okay for you Guenter? > There will be a longer answer, but that must wait until the formal datasheets have > been clarified by the hardware engineers. > > Regards, > Steve > Regards, Marco -- To unsubscribe from this list: send the line "unsubscribe linux-watchdog" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
