RE: [PATCH 01/17] dt-bindings: hwinfo: samsung,exynos-chipid: add specific compatibles for existing SoC

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> -----Original Message-----
> From: Krzysztof Kozlowski <krzysztof.kozlowski@xxxxxxxxxx>
> Sent: Wednesday, November 8, 2023 4:13 PM
> To: David Airlie <airlied@xxxxxxxxx>; Daniel Vetter <daniel@xxxxxxxx>;
> Maarten Lankhorst <maarten.lankhorst@xxxxxxxxxxxxxxx>; Maxime Ripard
> <mripard@xxxxxxxxxx>; Thomas Zimmermann <tzimmermann@xxxxxxx>;
> Rob Herring <robh+dt@xxxxxxxxxx>; Krzysztof Kozlowski
> <krzysztof.kozlowski+dt@xxxxxxxxxx>; Conor Dooley
> <conor+dt@xxxxxxxxxx>; Alim Akhtar <alim.akhtar@xxxxxxxxxxx>; Andi
> Shyti <andi.shyti@xxxxxxxxxx>; Jonathan Cameron <jic23@xxxxxxxxxx>; Lars-
> Peter Clausen <lars@xxxxxxxxxx>; Lee Jones <lee@xxxxxxxxxx>; Ulf
> Hansson <ulf.hansson@xxxxxxxxxx>; Tomasz Figa <tomasz.figa@xxxxxxxxx>;
> Sylwester Nawrocki <s.nawrocki@xxxxxxxxxxx>; Linus Walleij
> <linus.walleij@xxxxxxxxxx>; Thierry Reding <thierry.reding@xxxxxxxxx>; Uwe
> Kleine-König <u.kleine-koenig@xxxxxxxxxxxxxx>; Alessandro Zummo
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> <alexandre.belloni@xxxxxxxxxxx>; Greg Kroah-Hartman
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> Girdwood <lgirdwood@xxxxxxxxx>; Mark Brown <broonie@xxxxxxxxxx>;
> Jaehoon Chung <jh80.chung@xxxxxxxxxxx>; Sam Protsenko
> <semen.protsenko@xxxxxxxxxx>; dri-devel@xxxxxxxxxxxxxxxxxxxxx;
> devicetree@xxxxxxxxxxxxxxx; linux-kernel@xxxxxxxxxxxxxxx; linux-arm-
> kernel@xxxxxxxxxxxxxxxxxxx; linux-samsung-soc@xxxxxxxxxxxxxxx; linux-
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> Cc: Krzysztof Kozlowski <krzysztof.kozlowski@xxxxxxxxxx>
> Subject: [PATCH 01/17] dt-bindings: hwinfo: samsung,exynos-chipid: add
> specific compatibles for existing SoC
> 
> Samsung Exynos SoC reuses several devices from older designs, thus
> historically we kept the old (block's) compatible only.  This works fine and
> there is no bug here, however guidelines expressed in
> Documentation/devicetree/bindings/writing-bindings.rst state that:
> 1. Compatibles should be specific.
> 2. We should add new compatibles in case of bugs or features.
> 
> Add compatibles specific to each SoC in front of all old-SoC-like compatibles.
> 
> Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@xxxxxxxxxx>
> 
Reviewed-by: Alim Akhtar <alim.akhtar@xxxxxxxxxxx>

> ---
> 
> I propose to take the patch through Samsung SoC (me). See cover letter for
> explanation.
> ---
>  .../bindings/hwinfo/samsung,exynos-chipid.yaml  | 17 ++++++++++++++---
>  1 file changed, 14 insertions(+), 3 deletions(-)
> 
> diff --git a/Documentation/devicetree/bindings/hwinfo/samsung,exynos-
> chipid.yaml
> b/Documentation/devicetree/bindings/hwinfo/samsung,exynos-chipid.yaml
> index 95cbdcb56efe..45f3d468db7c 100644
> --- a/Documentation/devicetree/bindings/hwinfo/samsung,exynos-
> chipid.yaml
> +++ b/Documentation/devicetree/bindings/hwinfo/samsung,exynos-
> chipid.yam
> +++ l
> @@ -11,9 +11,20 @@ maintainers:
> 
>  properties:
>    compatible:
> -    enum:
> -      - samsung,exynos4210-chipid
> -      - samsung,exynos850-chipid
> +    oneOf:
> +      - enum:
> +          - samsung,exynos4210-chipid
> +          - samsung,exynos850-chipid
> +      - items:
> +          - enum:
> +              - samsung,exynos5433-chipid
> +              - samsung,exynos7-chipid
> +          - const: samsung,exynos4210-chipid
> +      - items:
> +          - enum:
> +              - samsung,exynos7885-chipid
> +              - samsung,exynosautov9-chipid
> +          - const: samsung,exynos850-chipid
> 
>    reg:
>      maxItems: 1
> --
> 2.34.1







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