[V9,0/4] dt: Add fdtoverlay rule and statically build unittest

Message

Viresh Kumar March 3, 2021, 4:36 a.m. UTC

Hi,

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

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 (3):
  kbuild: Simplify builds with CONFIG_OF_ALL_DTBS
  of: unittest: Create overlay_common.dtsi and testcases_common.dtsi
  of: unittest: Statically apply overlays using fdtoverlay

 drivers/of/unittest-data/Makefile             | 50 ++++++++++
 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                          | 29 +++++-
 9 files changed, 210 insertions(+), 111 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: fe07bfda2fb9cdef8a4d4008a409bb02f35f1bd8