Re: [PATCH v2, 1/7] dt-bindings: media: mtk-vcodec: Adds decoder dt-bindings for lat soc

[AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>]

Il 10/02/22 04:06, yunfei.dong@mediatek.com ha scritto:
> Hi Rob,
> 
> Thanks for your suggestion.
> On Wed, 2022-02-09 at 14:37 -0600, Rob Herring wrote:
>> On Fri, Jan 28, 2022 at 11:54:34AM +0800, Yunfei Dong wrote:
>>> Adds decoder dt-bindings for compatible "mediatek,mtk-vcodec-lat-
>>> soc".
>>
>> What's lat soc? How does this relate to what's already there in this
>> binding.
>>
> lat soc is another hardware, is related with some vdec larb ports.
> Won't be used to decode, but must to write it in dtsi, or hardware
> can't work well.

Hello Yunfei,

as a suggestion, writing the meaning of the "LAT" acronym may also
help to clear some doubts around (please, also do that in the yaml file,
other than the commit description).

Thank you!
Angelo

> 
> Need to enable clock/power/iommus, no interrupt.
>> The subject space is limited, avoid saying the same thing twice
>> (dt-bindings).
>>
> 
> Best Regards,
> Yunfei Dong
>>>
>>> Signed-off-by: Yunfei Dong <yunfei.dong@mediatek.com>
>>> ---
>>>   .../media/mediatek,vcodec-subdev-decoder.yaml | 49
>>> +++++++++++++++++++
>>>   1 file changed, 49 insertions(+)
>>>
>>> diff --git
>>> a/Documentation/devicetree/bindings/media/mediatek,vcodec-subdev-
>>> decoder.yaml
>>> b/Documentation/devicetree/bindings/media/mediatek,vcodec-subdev-
>>> decoder.yaml
>>> index 6415c9f29130..a3c892338ac0 100644
>>> --- a/Documentation/devicetree/bindings/media/mediatek,vcodec-
>>> subdev-decoder.yaml
>>> +++ b/Documentation/devicetree/bindings/media/mediatek,vcodec-
>>> subdev-decoder.yaml
>>> @@ -189,6 +189,55 @@ patternProperties:
>>>   
>>>       additionalProperties: false
>>>   
>>> +  '^vcodec-lat-soc@[0-9a-f]+$':
>>> +    type: object
>>> +
>>> +    properties:
>>> +      compatible:
>>> +        const: mediatek,mtk-vcodec-lat-soc
>>> +
>>> +      reg:
>>> +        maxItems: 1
>>> +
>>> +      iommus:
>>> +        minItems: 1
>>> +        maxItems: 32
>>> +        description: |
>>> +          List of the hardware port in respective IOMMU block for
>>> current Socs.
>>> +          Refer to bindings/iommu/mediatek,iommu.yaml.
>>> +
>>> +      clocks:
>>> +        maxItems: 5
>>> +
>>> +      clock-names:
>>> +        items:
>>> +          - const: sel
>>> +          - const: soc-vdec
>>> +          - const: soc-lat
>>> +          - const: vdec
>>> +          - const: top
>>> +
>>> +      assigned-clocks:
>>> +        maxItems: 1
>>> +
>>> +      assigned-clock-parents:
>>> +        maxItems: 1
>>> +
>>> +      power-domains:
>>> +        maxItems: 1
>>> +
>>> +    required:
>>> +      - compatible
>>> +      - reg
>>> +      - iommus
>>> +      - clocks
>>> +      - clock-names
>>> +      - assigned-clocks
>>> +      - assigned-clock-parents
>>> +      - power-domains
>>> +
>>> +    additionalProperties: false
>>> +
>>>   required:
>>>     - compatible
>>>     - reg
>>> -- 
>>> 2.25.1
>>>
>>>
>