On 20-01-21, 09:43, Rob Herring wrote:

On Wed, Jan 20, 2021 at 1:07 AM Viresh Kumar [off-list ref] wrote:

quoted

Hi Frank/Rob,

I have picked all the related patches together into a single patchset,
so they can be properly reviewed/tested.

This patchset makes necessary changes to the kernel to add support for
building overlays (%.dtbo) and the required fdtoverlay tool. This also
builds static_test.dtb using some of the existing overlay tests present
in drivers/of/unittest-data/ for better test coverage.

Note that in order for anyone to test this stuff, you need to manually
run the ./update-dtc-source.sh script once to fetch the necessary
changes from the external DTC project (i.e. fdtoverlay.c and this[1]
patch).

Do we need a fdtoverlay fix for applying root node changes?

I have dropped the overlay files which were updating the root-node as
it looks like it shouldn't be done. Frank suggested (in his patch) to
drop overlay.dtb and I dropped overlay_base.dtb as well.

With that no other fixes are required.

-- 
viresh