On Tue, Oct 17, 2017 at 05:30:25PM +0200, Michael Grzeschik wrote: > The DA9062 watchdog occasionally enters error condition and resets the > system if the timeout is changed quickly after the timer was enabled. > > The method of disabling and waiting for > 150 µs before setting the > new timeout is taken from the DA9052 driver. > > Signed-off-by: Michael Grzeschik <m.grzeschik@xxxxxxxxxxxxxx> Reviewed-by: Guenter Roeck <linux@xxxxxxxxxxxx> > --- > drivers/watchdog/da9062_wdt.c | 7 +++++++ > 1 file changed, 7 insertions(+) > > diff --git a/drivers/watchdog/da9062_wdt.c b/drivers/watchdog/da9062_wdt.c > index b95719b349e5c..d43e0c46e23fb 100644 > --- a/drivers/watchdog/da9062_wdt.c > +++ b/drivers/watchdog/da9062_wdt.c > @@ -100,6 +100,13 @@ static int da9062_wdt_update_timeout_register(struct da9062_watchdog *wdt, > if (ret) > return ret; > > + regmap_update_bits(chip->regmap, > + DA9062AA_CONTROL_D, > + DA9062AA_TWDSCALE_MASK, > + DA9062_TWDSCALE_DISABLE); > + > + usleep_range(150, 300); > + > return regmap_update_bits(chip->regmap, > DA9062AA_CONTROL_D, > DA9062AA_TWDSCALE_MASK, -- 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
