[PATCH v1 07/14] dt-bindings: display: mediatek,ufoe: Add mediatek,gce-client-reg property

[Ariel D'Alessandro]

Krzysztof,

On 9/10/25 11:21 AM, Krzysztof Kozlowski wrote:
> On 10/09/2025 16:04, Ariel D'Alessandro wrote:
>> Krzysztof,
>>
>> On 8/21/25 3:50 AM, Krzysztof Kozlowski wrote:
>>> On Wed, Aug 20, 2025 at 02:12:55PM -0300, Ariel D'Alessandro wrote:
>>>> Current, the DT bindings for Mediatek UFOe (Unified Frame Optimization
>>>> engine) is missing the mediatek,gce-client-reg property. Add it and
>>>
>>> Why is it missing? If the binding is complete, it cannot be missing...
>>
>> Due to the following error:
>>
>> $ make -j$(nproc) CHECK_DTBS=y mediatek/mt8173-elm.dtb
>>     SCHEMA  Documentation/devicetree/bindings/processed-schema.json
>>     DTC [C] arch/arm64/boot/dts/mediatek/mt8173-elm.dtb
>> [...]
>> arch/arm64/boot/dts/mediatek/mt8173-elm.dtb: ufoe at 1401a000
>> (mediatek,mt8173-disp-ufoe): 'mediatek,gce-client-reg' does not match
>> any of the regexes: '^pinctrl-[0-9]+$'
>> 	from schema $id:
>> http://devicetree.org/schemas/display/mediatek/mediatek,ufoe.yaml#
> 
> So there are users of it? Then please explain that.

Ack. Will fix in v2. Thanks.

> 
>>
>>>
>>>> update the example as well.
>>>>
>>>> Signed-off-by: Ariel D'Alessandro <ariel.dalessandro at collabora.com>
>>>> ---
>>>>    .../bindings/display/mediatek/mediatek,ufoe.yaml      | 11 +++++++++++
>>>>    1 file changed, 11 insertions(+)
>>>>
>>>> diff --git a/Documentation/devicetree/bindings/display/mediatek/mediatek,ufoe.yaml b/Documentation/devicetree/bindings/display/mediatek/mediatek,ufoe.yaml
>>>> index 61a5e22effbf2..ecb4c0359fec3 100644
>>>> --- a/Documentation/devicetree/bindings/display/mediatek/mediatek,ufoe.yaml
>>>> +++ b/Documentation/devicetree/bindings/display/mediatek/mediatek,ufoe.yaml
>>>> @@ -64,6 +64,14 @@ properties:
>>>>          - port at 0
>>>>          - port at 1
>>>>    
>>>> +  mediatek,gce-client-reg:
>>>> +    description: The register of client driver can be configured by gce with
>>>> +      4 arguments defined in this property, such as phandle of gce, subsys id,
>>>> +      register offset and size. Each GCE subsys id is mapping to a client
>>>
>>> Don't explain what DT syntax is. We all know, so that's completely
>>> redundant description. Explain the purpose. Explain Arguments with sechema - items.
>>
>> Although I agree with your suggestions, this is exactly how the rest of
>> the Mediatek DT bindings describe this node. This patch is based on the
>> other +20 files, which describe the node in the same way.
> 
> 
> Last time I tried to fix something for Mediatek display I got
> condescending and useless review from Collabora, so I won't be bothering
> with fixing these bindings to make your job easier. I don't care, you
> can thank someone inside. Therefore other poor bindings are not a valid
> excuse for this patch not being correct.

I see. Will rework this properly in v2.

Thanks,

-- 
Ariel D'Alessandro
Software Engineer

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