Re: [PATCH v2] media: dt-bindings: ov8856: decouple lanes and link frequency from driver

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On Thu, Dec 07, 2023 at 03:23:56PM +0100, Krzysztof Kozlowski wrote:
> The data lanes and link frequency were set to match exiting Linux driver
> limitations, however bindings should be independent of chosen Linux
> driver support.
> 
> Decouple these properties from the driver to match what is actually
> supported by the hardware.
> 
> This also fixes DTS example:
> 
>   ov8856.example.dtb: camera@10: port:endpoint:link-frequencies:0: [360000000] is too short
> 
> Fixes: 066a94e28a23 ("media: dt-bindings: media: Use graph and video-interfaces schemas")
> Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@xxxxxxxxxx>
> 
> ---
> 
> Changes in v2:
> 1. Rework approach: decouple bindings from driver instead of fixing
>    DTS example (Sakari)

Acked-by: Conor Dooley <conor.dooley@xxxxxxxxxxxxx>

Cheers,
Conor.

> ---
>  .../devicetree/bindings/media/i2c/ov8856.yaml | 21 +++++++++++--------
>  1 file changed, 12 insertions(+), 9 deletions(-)
> 
> diff --git a/Documentation/devicetree/bindings/media/i2c/ov8856.yaml b/Documentation/devicetree/bindings/media/i2c/ov8856.yaml
> index 57f5e48fd8e0..71102a71cf81 100644
> --- a/Documentation/devicetree/bindings/media/i2c/ov8856.yaml
> +++ b/Documentation/devicetree/bindings/media/i2c/ov8856.yaml
> @@ -67,19 +67,22 @@ properties:
>  
>          properties:
>            data-lanes:
> -            description: |-
> -              The driver only supports four-lane operation.
> -            items:
> -              - const: 1
> -              - const: 2
> -              - const: 3
> -              - const: 4
> +            oneOf:
> +              - items:
> +                  - const: 1
> +              - items:
> +                  - const: 1
> +                  - const: 2
> +              - items:
> +                  - const: 1
> +                  - const: 2
> +                  - const: 3
> +                  - const: 4
>  
>            link-frequencies:
>              description: Frequencies listed are driver, not h/w limitations.
> -            maxItems: 2
>              items:
> -              enum: [ 360000000, 180000000 ]
> +              enum: [ 1440000000, 720000000, 360000000, 180000000 ]
>  
>          required:
>            - link-frequencies
> -- 
> 2.34.1
> 

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