Le 17/03/2020 à 14:07, Rasmus Villemoes a écrit :
In any case it seems to me a board specific redefinition of the
WATCHDOG_RESET macro would be less intrusive and risky than changing
code that has been there since the beginning of time (well, at least
more than 18 years).
The point is, we're being told that everything is moving to DM and
better convert your board or else..., and nowadays CONFIG_WDT comes with
it's own watchdog_reset() which is a rather more complicated beast than
the board-specific ones that used to be sprinkled throughout (and
out-of) the tree. So yes, for the past 18 years, nothing bad has
probably come from doing a WATCHDOG_RESET even deep down in the guts of
arch-specific primitives.
CONFIG_WDT comes with a watchdog_reset() when you defined CONFIG_WATCHDOG.
For boards like powerpc boards with embedded SOC watchdog that needs to
be pinged from the very begining, we have CONFIG_HW_WATCHDOG and that's
compatible with DM. See
https://gitlab.denx.de/u-boot/u-boot/-/commit/a68256074f4239008c6d5c936bc0f8857f3d1b8a
Christophe
