linux-kernel - [PATCH V10 0/5] dt: Add fdtoverlay rule and statically build unittest

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Message-Id: <cover.1615199908.git.viresh.kumar@linaro.org>
Date:   Mon,  8 Mar 2021 16:15:05 +0530
From:   Viresh Kumar <viresh.kumar@...aro.org>
To:     Masahiro Yamada <masahiroy@...nel.org>,
        Frank Rowand <frowand.list@...il.com>,
        Michal Marek <michal.lkml@...kovi.net>,
        Rob Herring <robh+dt@...nel.org>
Cc:     Viresh Kumar <viresh.kumar@...aro.org>,
        Vincent Guittot <vincent.guittot@...aro.org>,
        David Gibson <david@...son.dropbear.id.au>,
        Michal Simek <michal.simek@...inx.com>,
        Geert Uytterhoeven <geert@...ux-m68k.org>,
        anmar.oueja@...aro.org, Bill Mills <bill.mills@...aro.org>,
        devicetree@...r.kernel.org,
        Geert Uytterhoeven <geert+renesas@...der.be>,
        linux-kbuild@...r.kernel.org, linux-kernel@...r.kernel.org,
        Rob Herring <robh@...nel.org>
Subject: [PATCH V10 0/5] dt: Add fdtoverlay rule and statically build unittest

Hi,

This patchset adds a generic rule for applying overlays using fdtoverlay
tool and then updates unittests to get built statically using the same.

V9->V10:
- Add a new patch to allow .dtso files.
- Update 2/5 to be more efficient and also generate symbols for base
  files automatically.
- No need to add lines like DTC_FLAGS_foo_base += -@ in patch 5/5.
- Add Ack by Masahiro for 1/5.

V8->V9:
- Added some comment in patch 3/4 based on Frank's suggestions.

V7->V8:
- Patch 1 is new.
- Platforms need to use dtb-y += foo.dtb instead of overlay-y +=
  foo.dtb.
- Use multi_depend instead of .SECONDEXPANSION.
- Use dtb-y for unittest instead of overlay-y.
- Rename the commented dtb filess in unittest Makefile as .dtbo.
- Improved Makefile code (I am learning a lot every day :)

V6->V7:
- Dropped the first 4 patches, already merged.
- Patch 1/3 is new, suggested by Rob and slightly modified by me.
- Adapt Patch 3/3 to the new rule and name the overlay dtbs as .dtbo.

--
Viresh

Rob Herring (1):
  kbuild: Add generic rule to apply fdtoverlay

Viresh Kumar (4):
  kbuild: Simplify builds with CONFIG_OF_ALL_DTBS
  kbuild: Allow .dtso format for overlay source files
  of: unittest: Create overlay_common.dtsi and testcases_common.dtsi
  of: unittest: Statically apply overlays using fdtoverlay

 drivers/of/unittest-data/Makefile             | 48 ++++++++++
 drivers/of/unittest-data/overlay_base.dts     | 90 +-----------------
 drivers/of/unittest-data/overlay_common.dtsi  | 91 +++++++++++++++++++
 drivers/of/unittest-data/static_base_1.dts    |  4 +
 drivers/of/unittest-data/static_base_2.dts    |  4 +
 drivers/of/unittest-data/testcases.dts        | 23 ++---
 .../of/unittest-data/testcases_common.dtsi    | 19 ++++
 .../of/unittest-data/tests-interrupts.dtsi    | 11 +--
 scripts/Makefile.lib                          | 40 ++++++--
 9 files changed, 218 insertions(+), 112 deletions(-)
 create mode 100644 drivers/of/unittest-data/overlay_common.dtsi
 create mode 100644 drivers/of/unittest-data/static_base_1.dts
 create mode 100644 drivers/of/unittest-data/static_base_2.dts
 create mode 100644 drivers/of/unittest-data/testcases_common.dtsi


base-commit: a38fd8748464831584a19438cbb3082b5a2dab15
-- 
2.25.0.rc1.19.g042ed3e048af