2015-07-31 23:31 GMT+09:00 Ian Campbell [off-list ref]:

Commit 9ccd608070b6 "arm64: dts: add device tree for ARM SMM-A53x2 on
LogicTile Express 20MG" added a new dts file to arch/arm64 which
included "../../../../arm/boot/dts/vexpress-v2m-rs1.dtsi", i.e. a
.dtsi supplied by arch/arm.

Unfortunately this causes some issues for the split device tree
repository[0], since things get moved around there. In that context
the new .dts ends up at src/arm64/arm/vexpress-v2f-1xv7-ca53x2.dts
while the include is at src/arm/vexpress-v2m-rs1.dtsi.

Typo?

src/arm64  ->  arch/arm64
src/arm    ->  arch/arm

The sharing of the .dtsi is legitimate since the baseboard is the same
for various vexpress systems whatever processor they use.

Rather than using ../../ tricks to pickup .dtsi files from another
arch this patch creates a new directory include/dt-dtsi as a
home for such cross-arch .dtsi files, arranges for it to be in the
include path when the .dts files are processed by cpp and switches the
.dts files to use cpp #include instead of /include/. The dtsi file
itself is moved into a vendor subdir in this case "arm" (the vendor,
not the ARCH=).

As Rob pointed out, this does not match the code.

[0] https://git.kernel.org/cgit/linux/kernel/git/devicetree/devicetree-rebasing.git/

Nit just in case.

scripts/checkpatch.pl reported 1 error, 1 warning:


ERROR: Please use git commit description style 'commit <12+ chars of
sha1> ("<title line>")' - ie: 'Commit 9ccd608070b6 ("arm64: dts: add
device tree for ARM SMM-A53x2 on LogicTile Express 20MG")'
#23:
Commit 9ccd608070b6 "arm64: dts: add device tree for ARM SMM-A53x2 on

WARNING: Possible unwrapped commit description (prefer a maximum 75
chars per line)
#44:
[0] https://git.kernel.org/cgit/linux/kernel/git/devicetree/devicetree-rebasing.git/

total: 1 errors, 1 warnings, 58 lines checked



The URL should not be split into two lines, so I think the warning can
be ignored.
But I think it is better to fix the error of commit description style.


Apart from the git-description,

Reviewed-by: Masahiro Yamada <redacted>


-- 
Best Regards
Masahiro Yamada