Re: [PATCH] kbuild: Add DTC_CPP_FLAGS

[Rob Herring]

On Wed, Dec 18, 2019 at 7:37 AM Masahiro Yamada <masahiroy@xxxxxxxxxx> wrote:
>
> (+CC: DT maintainers)
>
> On Wed, Dec 18, 2019 at 8:55 PM Frank Wunderlich
> <frank-w@xxxxxxxxxxxxxxx> wrote:
> >
> > With this Patch we are able to change cpp-preprocessor options
> > (e.g. -D...) for using conditions (#ifdef) in devicetree files
> > and dynamically add include searchpaths
>
> I think this is questionable
> since DT is supposed to describe hardware.
> Does it depends on #ifdef or some external defines?

NAK. #ifdefs and complex macros in particular are features we don't
want in dts files.

Rob