linux-kernel - Re: [PATCH] arc: Add "include chroot" for DT bindings

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Date:   Tue, 30 May 2017 11:56:40 -0500
From:   Rob Herring <robh+dt@...nel.org>
To:     Alexey Brodkin <Alexey.Brodkin@...opsys.com>
Cc:     arcml <linux-snps-arc@...ts.infradead.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        Vineet Gupta <Vineet.Gupta1@...opsys.com>,
        Stephen Warren <swarren@...dotorg.org>
Subject: Re: [PATCH] arc: Add "include chroot" for DT bindings

On Tue, May 30, 2017 at 8:22 AM, Alexey Brodkin
<Alexey.Brodkin@...opsys.com> wrote:
> Basically this extends
> c58299aa8754 "kbuild: create an "include chroot" for DT bindings" for
> ARC where we extensively use Device Tree and there're good reasons
> to use DT bindings, especially if those are required.
>
> Otherwise on attempt to compile .dts with something like:
> -------------------->8---------------------
>  #include <dt-bindings/net/ti-dp83867.h>
> -------------------->8---------------------
>
> we inevitably see this compilation failure:
> -------------------->8---------------------
> arch/arc/boot/dts/hsdk.dts:16:40: fatal error: dt-bindings/net/ti-dp83867.h: No such file or directory
>  #include <dt-bindings/net/ti-dp83867.h>
>                                         ^
> compilation terminated.
> -------------------->8---------------------
>
> Signed-off-by: Alexey Brodkin <abrodkin@...opsys.com>
> Cc: Stephen Warren <swarren@...dotorg.org>
> Cc: Rob Herring <robh+dt@...nel.org>
> ---
>  arch/arc/boot/dts/include/dt-bindings | 1 +
>  1 file changed, 1 insertion(+)
>  create mode 120000 arch/arc/boot/dts/include/dt-bindings

I believe commit d5d332d3f7e8 ("devicetree: Move include prefixes from
arch to separate directory") does what you want.

Rob