[PATCH] kbuild: Respect CONFIG_SYS_DTC_PAD_BYTES after fdtgrep

[Simon Glass]

Hi Marek,

On Tue, 21 Apr 2026 at 12:48, Marek Vasut <marek.vasut at mailbox.org> wrote:
>
> On 4/20/26 6:14 AM, Simon Glass wrote:
> > On 2026-04-20T01:23:26, Marek Vasut <marek.vasut+renesas at mailbox.org> wrote:
> >> kbuild: Respect CONFIG_SYS_DTC_PAD_BYTES after fdtgrep
> >>
> >> The fdtgrep command will reduce the DT to minimum size, thus eliminating
> >> the extra padding configured via CONFIG_SYS_DTC_PAD_BYTES. Reinstate the
> >> extra padding by running the output DTB from fdtgrep through DTC with the
> >> -p CONFIG_SYS_DTC_PAD_BYTES flag again in case CONFIG_SYS_DTC_PAD_BYTES
> >> is not zero.
> >>
> >> Signed-off-by: Marek Vasut <marek.vasut+renesas at mailbox.org>
> >>
> >> scripts/Makefile.lib | 7 +++++++
> >>   1 file changed, 7 insertions(+)
> >
> > Reviewed-by: Simon Glass <sjg at chromium.org>
>
> Is this something which can be added into fdtgrep itself btw ?

Yes I'm sure that would be possible: perhaps a flag to maintain the
same padding as it finds in the input file.

Regards,
Simon