| Message ID | 1438617993-1012-1-git-send-email-ian.campbell@citrix.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
Hi 2015-08-04 1:06 GMT+09:00 Ian Campbell <ian.campbell@citrix.com>: > 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. > > 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 kernel/dts as a home for such > cross-arch .dtsi files and arranges for it to be in the include path > for both dtc and cpp. The dtsi file itself is moved into a vendor > subdir in this case "arm" (the vendor, not the ARCH=). Question: If this patch is applied, which directory will be created in device-tree-rebasing? src/kernel/, src/common/, or something else? Either will do, of course. Another nit: I just noticed a period at the end of the commit subject. Re-post would not be needed only for such a minor thing, but please try best to remember to drop it when this patch is applied.
diff --git a/Documentation/devicetree/bindings/arm/vexpress.txt b/Documentation/devicetree/bindings/arm/vexpress.txt index 39844cd..b6031d9 100644 --- a/Documentation/devicetree/bindings/arm/vexpress.txt +++ b/Documentation/devicetree/bindings/arm/vexpress.txt @@ -223,7 +223,7 @@ Example of a VE tile description (simplified) /* Active high IRQ 0 is connected to GIC's SPI0 */ interrupt-map = <0 0 0 &gic 0 0 4>; - /include/ "vexpress-v2m-rs1.dtsi" + /include/ "arm/vexpress-v2m-rs1.dtsi" }; }; diff --git a/MAINTAINERS b/MAINTAINERS index a226416..1941078 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -7537,6 +7537,7 @@ S: Maintained F: Documentation/devicetree/ F: arch/*/boot/dts/ F: include/dt-bindings/ +F: kernel/dts/ OPEN FIRMWARE AND DEVICE TREE OVERLAYS M: Pantelis Antoniou <pantelis.antoniou@konsulko.com> diff --git a/arch/arm/boot/dts/vexpress-v2p-ca15-tc1.dts b/arch/arm/boot/dts/vexpress-v2p-ca15-tc1.dts index 9420053..b144092 100644 --- a/arch/arm/boot/dts/vexpress-v2p-ca15-tc1.dts +++ b/arch/arm/boot/dts/vexpress-v2p-ca15-tc1.dts @@ -278,6 +278,6 @@ <0 0 41 &gic 0 41 4>, <0 0 42 &gic 0 42 4>; - /include/ "vexpress-v2m-rs1.dtsi" + /include/ "arm/vexpress-v2m-rs1.dtsi" }; }; diff --git a/arch/arm/boot/dts/vexpress-v2p-ca15_a7.dts b/arch/arm/boot/dts/vexpress-v2p-ca15_a7.dts index 17f63f7..350f402 100644 --- a/arch/arm/boot/dts/vexpress-v2p-ca15_a7.dts +++ b/arch/arm/boot/dts/vexpress-v2p-ca15_a7.dts @@ -636,6 +636,6 @@ <0 0 41 &gic 0 41 4>, <0 0 42 &gic 0 42 4>; - /include/ "vexpress-v2m-rs1.dtsi" + /include/ "arm/vexpress-v2m-rs1.dtsi" }; }; diff --git a/arch/arm/boot/dts/vexpress-v2p-ca5s.dts b/arch/arm/boot/dts/vexpress-v2p-ca5s.dts index d2709b7..585ced0 100644 --- a/arch/arm/boot/dts/vexpress-v2p-ca5s.dts +++ b/arch/arm/boot/dts/vexpress-v2p-ca5s.dts @@ -248,6 +248,6 @@ <0 0 41 &gic 0 41 4>, <0 0 42 &gic 0 42 4>; - /include/ "vexpress-v2m-rs1.dtsi" + /include/ "arm/vexpress-v2m-rs1.dtsi" }; }; diff --git a/arch/arm64/boot/dts/arm/vexpress-v2f-1xv7-ca53x2.dts b/arch/arm64/boot/dts/arm/vexpress-v2f-1xv7-ca53x2.dts index 5b1d018..c044804 100644 --- a/arch/arm64/boot/dts/arm/vexpress-v2f-1xv7-ca53x2.dts +++ b/arch/arm64/boot/dts/arm/vexpress-v2f-1xv7-ca53x2.dts @@ -186,6 +186,6 @@ <0 0 41 &gic GIC_SPI 41 IRQ_TYPE_LEVEL_HIGH>, <0 0 42 &gic GIC_SPI 42 IRQ_TYPE_LEVEL_HIGH>; - /include/ "../../../../arm/boot/dts/vexpress-v2m-rs1.dtsi" + /include/ "arm/vexpress-v2m-rs1.dtsi" }; }; diff --git a/arch/arm/boot/dts/vexpress-v2m-rs1.dtsi b/kernel/dts/arm/vexpress-v2m-rs1.dtsi similarity index 100% rename from arch/arm/boot/dts/vexpress-v2m-rs1.dtsi rename to kernel/dts/arm/vexpress-v2m-rs1.dtsi diff --git a/scripts/Makefile.lib b/scripts/Makefile.lib index 79e8661..b4d9fb6 100644 --- a/scripts/Makefile.lib +++ b/scripts/Makefile.lib @@ -163,6 +163,7 @@ dtc_cpp_flags = -Wp,-MD,$(depfile).pre.tmp -nostdinc \ -I$(srctree)/arch/$(SRCARCH)/boot/dts \ -I$(srctree)/arch/$(SRCARCH)/boot/dts/include \ -I$(srctree)/drivers/of/testcase-data \ + -I$(srctree)/kernel/dts \ -undef -D__DTS__ # Finds the multi-part object the current object will be linked into @@ -285,7 +286,7 @@ quiet_cmd_dtc = DTC $@ cmd_dtc = mkdir -p $(dir ${dtc-tmp}) ; \ $(CPP) $(dtc_cpp_flags) -x assembler-with-cpp -o $(dtc-tmp) $< ; \ $(objtree)/scripts/dtc/dtc -O dtb -o $@ -b 0 \ - -i $(dir $<) $(DTC_FLAGS) \ + -i $(dir $<) -i $(srctree)/kernel/dts $(DTC_FLAGS) \ -d $(depfile).dtc.tmp $(dtc-tmp) ; \ cat $(depfile).pre.tmp $(depfile).dtc.tmp > $(depfile)
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. 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 kernel/dts as a home for such cross-arch .dtsi files and arranges for it to be in the include path for both dtc and cpp. The dtsi file itself is moved into a vendor subdir in this case "arm" (the vendor, not the ARCH=). [0] https://git.kernel.org/cgit/linux/kernel/git/devicetree/devicetree-rebasing.git/ Signed-off-by: Ian Campbell <ian.campbell@citrix.com> Cc: Rob Herring <robh+dt@kernel.org> Cc: Pawel Moll <pawel.moll@arm.com> Cc: Mark Rutland <mark.rutland@arm.com> Cc: Kumar Gala <galak@codeaurora.org> Cc: Liviu Dudau <liviu.dudau@arm.com> Cc: Sudeep Holla <sudeep.holla@arm.com> Cc: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com> Cc: Russell King <linux@arm.linux.org.uk> Cc: Catalin Marinas <catalin.marinas@arm.com> Cc: Will Deacon <will.deacon@arm.com> Cc: Kristina Martsenko <kristina.martsenko@arm.com> Cc: Kevin Hilman <khilman@linaro.org> Cc: devicetree@vger.kernel.org Cc: linux-kernel@vger.kernel.org Cc: linux-arm-kernel@lists.infradead.org Cc: linux-kbuild@vger.kernel.org Acked-by: Mark Rutland <mark.rutland@arm.com> Acked-by: Rob Herring <robh@kernel.org> Acked-by: Liviu Dudau <Liviu.Dudau@arm.com> Reviewed-by: Masahiro Yamada <yamada.masahiro@socionext.com> --- v2: Move to include/dt-dtsi and introduce a per-vendor subdirectory. v3: Move to kernel/dts. Include new directory in DTC include path as well as cpp path, and therefore switch back to /include/. Update MAINTAINERS v4: Change path in changelog too. Add ()s to title of 9ccd608070b6. v5: Remove stale reference to switching from /include/ to #include. --- Documentation/devicetree/bindings/arm/vexpress.txt | 2 +- MAINTAINERS | 1 + arch/arm/boot/dts/vexpress-v2p-ca15-tc1.dts | 2 +- arch/arm/boot/dts/vexpress-v2p-ca15_a7.dts | 2 +- arch/arm/boot/dts/vexpress-v2p-ca5s.dts | 2 +- arch/arm64/boot/dts/arm/vexpress-v2f-1xv7-ca53x2.dts | 2 +- {arch/arm/boot/dts => kernel/dts/arm}/vexpress-v2m-rs1.dtsi | 0 scripts/Makefile.lib | 3 ++- 8 files changed, 8 insertions(+), 6 deletions(-) rename {arch/arm/boot/dts => kernel/dts/arm}/vexpress-v2m-rs1.dtsi (100%)