Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753884AbbGaOt2 (ORCPT ); Fri, 31 Jul 2015 10:49:28 -0400 Received: from foss.arm.com ([217.140.101.70]:45740 "EHLO foss.arm.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751978AbbGaOt0 (ORCPT ); Fri, 31 Jul 2015 10:49:26 -0400 Date: Fri, 31 Jul 2015 15:48:55 +0100 From: Mark Rutland To: Ian Campbell Cc: "devicetree@vger.kernel.org" , Rob Herring , Pawel Moll , Kumar Gala , Liviu Dudau , Sudeep Holla , Lorenzo Pieralisi , Russell King , Catalin Marinas , Will Deacon , Kristina Martsenko , Kevin Hilman , "linux-kernel@vger.kernel.org" , "linux-arm-kernel@lists.infradead.org" , "linux-kbuild@vger.kernel.org" Subject: Re: [PATCH v3] dtb: Create a common home for cross-architecture dtsi files. Message-ID: <20150731144855.GE25118@leverpostej> References: <1438353109-373-1-git-send-email-ian.campbell@citrix.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <1438353109-373-1-git-send-email-ian.campbell@citrix.com> User-Agent: Mutt/1.5.21 (2010-09-15) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 7194 Lines: 174 On Fri, Jul 31, 2015 at 03:31:49PM +0100, Ian Campbell wrote: > 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 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=). > > [0] https://git.kernel.org/cgit/linux/kernel/git/devicetree/devicetree-rebasing.git/ > > Signed-off-by: Ian Campbell I don't really have any strong preference on the naming, so my prior ack still stands. FWIW: Acked-by: Mark Rutland Mark. > Cc: Rob Herring > Cc: Pawel Moll > Cc: Mark Rutland > Cc: Kumar Gala > Cc: Liviu Dudau > Cc: Sudeep Holla > Cc: Lorenzo Pieralisi > Cc: Russell King > Cc: Catalin Marinas > Cc: Will Deacon > Cc: Kristina Martsenko > Cc: Kevin Hilman > Cc: devicetree@vger.kernel.org > Cc: linux-kernel@vger.kernel.org > Cc: linux-arm-kernel@lists.infradead.org > Cc: linux-kbuild@vger.kernel.org > --- > 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 > --- > 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%) > > 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 > 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) > > -- > 2.1.4 > -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/