Re: [PATCH 10/54] dt-bindings: display: panel-lvds: Document panel compatibles

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On Wed, Jul 21, 2021 at 04:03:40PM +0200, Maxime Ripard wrote:
> The binding mentions that all the drivers using that driver must use a
> vendor-specific compatible but never enforces it, nor documents the
> vendor-specific compatibles.
> 
> Let's make we document all of them, and that the binding will create an
> error if we add one that isn't.
> 
> Cc: dri-devel@xxxxxxxxxxxxxxxxxxxxx
> Cc: Laurent Pinchart <laurent.pinchart@xxxxxxxxxxxxxxxx>
> Cc: Sam Ravnborg <sam@xxxxxxxxxxxx>
> Cc: Thierry Reding <thierry.reding@xxxxxxxxx>
> Signed-off-by: Maxime Ripard <maxime@xxxxxxxxxx>
> ---
>  .../bindings/display/panel/lvds.yaml           | 18 ++++++++++++------
>  1 file changed, 12 insertions(+), 6 deletions(-)
> 
> diff --git a/Documentation/devicetree/bindings/display/panel/lvds.yaml b/Documentation/devicetree/bindings/display/panel/lvds.yaml
> index 49460c9dceea..d1513111eb48 100644
> --- a/Documentation/devicetree/bindings/display/panel/lvds.yaml
> +++ b/Documentation/devicetree/bindings/display/panel/lvds.yaml
> @@ -31,12 +31,18 @@ allOf:
>  
>  properties:
>    compatible:
> -    contains:
> -      const: panel-lvds
> -    description:
> -      Shall contain "panel-lvds" in addition to a mandatory panel-specific
> -      compatible string defined in individual panel bindings. The "panel-lvds"
> -      value shall never be used on its own.
> +    items:
> +      - enum:
> +          - advantech,idk-1110wr

At least this one is documented elsewhere. You can add 'minItems: 2' if 
you want to just enforce having 2 compatibles. Or do:

items:
  - {}
  - const: panel-lvds

Which also enforces the order.

> +          - advantech,idk-2121wr
> +          - auo,b101ew05
> +          - innolux,ee101ia-01d
> +          - mitsubishi,aa104xd12
> +          - mitsubishi,aa121td01
> +          - sgd,gktw70sdae4se
> +          - sharp,lq150x1lg11
> +          - tbs,a711-panel
> +      - const: panel-lvds
>  
>    data-mapping:
>      enum:
> -- 
> 2.31.1
> 
> 



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