Re: [PATCH v3 1/3] dt-bindings: media: rockchip-vpu: Add RK3568 VEPU compatible

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On 11/05/2022 18:37, Nicolas Frattaroli wrote:
> On Mittwoch, 11. Mai 2022 18:00:09 CEST Krzysztof Kozlowski wrote:
>> On 11/05/2022 17:53, Nicolas Frattaroli wrote:
>>> The RK3568 and RK3566 have a Hantro VPU node solely dedicated to
>>> encoding. This patch adds a compatible for it, and also allows
>>> the bindings to only come with a vepu interrupt.
>>>
>>> Signed-off-by: Nicolas Frattaroli <frattaroli.nicolas@xxxxxxxxx>
>>> ---
>>>  .../devicetree/bindings/media/rockchip-vpu.yaml | 17 ++++++++++++++++-
>>>  1 file changed, 16 insertions(+), 1 deletion(-)
>>>
>>> diff --git a/Documentation/devicetree/bindings/media/rockchip-vpu.yaml b/Documentation/devicetree/bindings/media/rockchip-vpu.yaml
>>> index bacb60a34989..965ca80b5cea 100644
>>> --- a/Documentation/devicetree/bindings/media/rockchip-vpu.yaml
>>> +++ b/Documentation/devicetree/bindings/media/rockchip-vpu.yaml
>>> @@ -22,6 +22,7 @@ properties:
>>>            - rockchip,rk3288-vpu
>>>            - rockchip,rk3328-vpu
>>>            - rockchip,rk3399-vpu
>>> +          - rockchip,rk3568-vepu
>>>            - rockchip,px30-vpu
>>>        - items:
>>>            - const: rockchip,rk3188-vpu
>>> @@ -39,7 +40,9 @@ properties:
>>>  
>>>    interrupt-names:
>>>      oneOf:
>>> -      - const: vdpu
>>> +      - enum:
>>> +          - vdpu
>>> +          - vepu
>>>        - items:
>>>            - const: vepu
>>>            - const: vdpu
>>> @@ -76,6 +79,18 @@ required:
>>>  
>>>  additionalProperties: false
>>>  
>>> +allOf:
>>> +  # compatibles that end in -vepu should only have the vepu interrupt
>>> +  - if:
>>> +      properties:
>>> +        compatible:
>>> +          contains:
>>> +            pattern: "^[a-zA-Z0-9\\-,_.]+\\-vepu$"
>>
>> Why not listing the compatible how I asked? This is the common way of
>> handling allOf:if:then per variant.
> 
> Because I was afraid that if this wasn't general enough to apply to all
> future vepu-only instances of Hantro, then my patch might be bikeshed
> into requiring a v4. Clearly, my worries had the opposite effect.
> 
> Also because I thought it was cool to use a pattern for this to enforce
> consistent naming in the bindings.

Until it does not match for some reason. :) Just list the compatible
under enum and it is expected the list to grow over time (if needed).



Best regards,
Krzysztof



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