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

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Message-ID: <28049fe0-0ae7-4b40-9f95-1513e317547f@collabora.com>
Date: Wed, 10 Sep 2025 11:04:29 -0300
From: Ariel D'Alessandro <ariel.dalessandro@...labora.com>
To: Krzysztof Kozlowski <krzk@...nel.org>
Cc: airlied@...il.com, amergnat@...libre.com, andrew+netdev@...n.ch,
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Subject: Re: [PATCH v1 07/14] dt-bindings: display: mediatek,ufoe: Add
 mediatek,gce-client-reg property

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$(nproc) CHECK_DTBS=y mediatek/mt8173-elm.dtb
   SCHEMA  Documentation/devicetree/bindings/processed-schema.json
   DTC [C] arch/arm64/boot/dts/mediatek/mt8173-elm.dtb
[...]
arch/arm64/boot/dts/mediatek/mt8173-elm.dtb: ufoe@...1a000 
(mediatek,mt8173-disp-ufoe): 'mediatek,gce-client-reg' does not match 
any of the regexes: '^pinctrl-[0-9]+$'
	from schema $id: 
http://devicetree.org/schemas/display/mediatek/mediatek,ufoe.yaml#

> 
>> update the example as well.
>>
>> Signed-off-by: Ariel D'Alessandro <ariel.dalessandro@...labora.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@0
>>         - port@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.

Regards,

-- 
Ariel D'Alessandro
Software Engineer

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