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SubjectRe: [PATCH V7 0/6] dt: build overlays
On Fri, 29 Jan 2021 12:54:04 +0530, Viresh Kumar wrote:
> Hi,
>
> 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 most 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).
>
> I have tested this patchset for static and runtime testing (on Hikey
> board) and no issues were reported.
>
> V7:
> - Add a comment in scripts/dtc/Makefile
> - Add Ack from Masahiro for patch 4/6.
> - Drop word "merge" from commit log of 2/6.
> - Split apply_static_overlay, static_test.dtb, and static_base.dts into
> two parts to handle overlay_base.dts and testcases.dts separately.
>
> V6:
> - Create separate rules for dtbo-s and separate entries in .gitignore in
> 4/6 (Masahiro).
> - A new file layout for handling all overlays for existing and new tests
> 5/6 (Frank).
> - Include overlay.dts as well now in 6/6 (Frank).
>
> V5:
>
> - Don't reuse DTC_SOURCE for fdtoverlay.c in patch 1/5 (Frank).
>
> - Update .gitignore and scripts/Makefile.dtbinst, drop dtbo-y syntax and
> DTC_FLAGS += -@ in patch 4/5 (Masahiro).
>
> - Remove the intermediate dtb, rename output to static_test.dtb, don't
> use overlay.dtb and overlay_base.dtb for static builds, improved
> layout/comments in Makefile for patch 5/5 (Frank).
>
> --
> Viresh
>
> [1] https://github.com/dgibson/dtc/commit/163f0469bf2ed8b2fe5aa15bc796b93c70243ddc
> [2] https://lore.kernel.org/lkml/74f8aa8f-ffab-3b0f-186f-31fb7395ebbb@gmail.com/
>
> Viresh Kumar (6):
> scripts: dtc: Fetch fdtoverlay.c from external DTC project
> scripts: dtc: Build fdtoverlay tool
> scripts: dtc: Remove the unused fdtdump.c file
> kbuild: Add support to build overlays (%.dtbo)
> of: unittest: Create overlay_common.dtsi and testcases_common.dtsi
> of: unittest: Statically apply overlays using fdtoverlay

I've applied the first 4 patches and did a dtc sync after patch 1.

Rob

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