linux-kernel - Re: [PATCH v2] arm64: dts: rockchip: Split rk3399-roc-pc for with and without mezzanine board.

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Message-ID: <7600269.ktiZa05prH@diego>
Date:   Mon, 04 Nov 2019 15:14:26 +0100
From:   Heiko Stübner <heiko@...ech.de>
To:     Markus Reichl <m.reichl@...etechno.de>
Cc:     Rob Herring <robh+dt@...nel.org>,
        Mark Rutland <mark.rutland@....com>,
        Jagan Teki <jagan@...rulasolutions.com>,
        devicetree@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
        linux-rockchip@...ts.infradead.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH v2] arm64: dts: rockchip: Split rk3399-roc-pc for with and without mezzanine board.

Hi Markus,

Am Montag, 4. November 2019, 15:08:55 CET schrieb Markus Reichl:
> For rk3399-roc-pc is a mezzanine board available that carries M.2 and
> POE interfaces. Use it with a separate dts.
> 
> Signed-off-by: Markus Reichl <m.reichl@...etechno.de>
> ---
> v2: Add new compatible string for roc-pc with mezzanine board.
> ---
>  .../devicetree/bindings/arm/rockchip.yaml     |   7 +-
>  arch/arm64/boot/dts/rockchip/Makefile         |   1 +
>  .../boot/dts/rockchip/rk3399-roc-pc-mezz.dts  |  72 ++
>  .../arm64/boot/dts/rockchip/rk3399-roc-pc.dts | 757 +----------------
>  .../boot/dts/rockchip/rk3399-roc-pc.dtsi      | 770 ++++++++++++++++++
>  5 files changed, 850 insertions(+), 757 deletions(-)
>  create mode 100644 arch/arm64/boot/dts/rockchip/rk3399-roc-pc-mezz.dts
>  create mode 100644 arch/arm64/boot/dts/rockchip/rk3399-roc-pc.dtsi
> 
> diff --git a/Documentation/devicetree/bindings/arm/rockchip.yaml b/Documentation/devicetree/bindings/arm/rockchip.yaml
> index bf86e8237363..e46af071a5fe 100644
> --- a/Documentation/devicetree/bindings/arm/rockchip.yaml
> +++ b/Documentation/devicetree/bindings/arm/rockchip.yaml
> @@ -87,11 +87,16 @@ properties:
>            - const: firefly,roc-rk3328-cc
>            - const: rockchip,rk3328
>  
> -      - description: Firefly ROC-RK3399-PC
> +      - description: Firefly ROC-RK3399-PC standalone
>          items:
>            - const: firefly,roc-rk3399-pc
>            - const: rockchip,rk3399
>  
> +      - description: Firefly ROC-RK3399-PC with mezzanine
> +        items:
> +          - const: firefly,roc-rk3399-pc-mezz
> +          - const: rockchip,rk3399
> +

Please do this similar to like the NanoPC boards, so like

      - description: Firefly ROC-RK3399-PC
         items:
          - enum:
              - firefly,roc-rk3399-pc
              - firefly,roc-rk3399-pc-mezzanine
           - const: rockchip,rk3399

including using the full name (-mezzanine) here and in the
actual dts filename+compatible.

Thanks
Heiko