linux-kernel - Re: [PATCH 3/4] dt-bindings: arm: fix Rockchip rk3399-evb bindings

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Message-ID: <78b8b53f-2e2a-3804-41fb-bb2610947ca2@arm.com>
Date:   Fri, 28 Feb 2020 12:42:55 +0000
From:   Robin Murphy <robin.murphy@....com>
To:     Johan Jonker <jbx6244@...il.com>, heiko@...ech.de
Cc:     devicetree@...r.kernel.org, robh+dt@...nel.org,
        linux-kernel@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
        linux-rockchip@...ts.infradead.org
Subject: Re: [PATCH 3/4] dt-bindings: arm: fix Rockchip rk3399-evb bindings

On 28/02/2020 6:14 am, Johan Jonker wrote:
> A test with the command below gives this error:
> 
> arch/arm64/boot/dts/rockchip/rk3399-evb.dt.yaml: /: compatible:
> ['rockchip,rk3399-evb', 'rockchip,rk3399', 'google,rk3399evb-rev2']
> is not valid under any of the given schemas
> 
> Fix this error by adding 'google,rk3399evb-rev2' to the compatible
> property in rockchip.yaml
> 
> make ARCH=arm64 dtbs_check
> DT_SCHEMA_FILES=Documentation/devicetree/bindings/arm/rockchip.yaml
> 
> Signed-off-by: Johan Jonker <jbx6244@...il.com>
> ---
>   Documentation/devicetree/bindings/arm/rockchip.yaml | 1 +
>   1 file changed, 1 insertion(+)
> 
> diff --git a/Documentation/devicetree/bindings/arm/rockchip.yaml b/Documentation/devicetree/bindings/arm/rockchip.yaml
> index d303790f5..6c6e8273e 100644
> --- a/Documentation/devicetree/bindings/arm/rockchip.yaml
> +++ b/Documentation/devicetree/bindings/arm/rockchip.yaml
> @@ -509,6 +509,7 @@ properties:
>           items:
>             - const: rockchip,rk3399-evb
>             - const: rockchip,rk3399
> +          - const: google,rk3399evb-rev2

This looks wrong - the board can't reasonably be a *more* general match 
than the SoC. If this is supposed to represent a specific variant of the 
basic EVB design then it should come before "rockchip,rk3399-evb" (and 
possibly be optional if other variants also exist).

Robin.

>   
>         - description: Rockchip RK3399 Sapphire standalone
>           items:
>