linux-kernel - Re: [PATCH v11 2/5] dt-bindings: msm/dp: add data-lanes and link-frequencies property

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Message-ID: <5aa16223-dbf6-996c-1985-794302dcce91@quicinc.com>
Date:   Thu, 8 Dec 2022 15:38:24 -0800
From:   Kuogee Hsieh <quic_khsieh@...cinc.com>
To:     Dmitry Baryshkov <dmitry.baryshkov@...aro.org>,
        <dri-devel@...ts.freedesktop.org>, <robdclark@...il.com>,
        <sean@...rly.run>, <swboyd@...omium.org>, <dianders@...omium.org>,
        <vkoul@...nel.org>, <daniel@...ll.ch>, <airlied@...ux.ie>,
        <agross@...nel.org>, <andersson@...nel.org>,
        <konrad.dybcio@...ainline.org>, <robh+dt@...nel.org>,
        <krzysztof.kozlowski+dt@...aro.org>, <devicetree@...r.kernel.org>,
        <airlied@...il.com>
CC:     <quic_abhinavk@...cinc.com>, <quic_sbillaka@...cinc.com>,
        <freedreno@...ts.freedesktop.org>, <linux-arm-msm@...r.kernel.org>,
        <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH v11 2/5] dt-bindings: msm/dp: add data-lanes and
 link-frequencies property


On 12/8/2022 3:33 PM, Dmitry Baryshkov wrote:
> On 09/12/2022 00:36, Kuogee Hsieh wrote:
>> Add both data-lanes and link-frequencies property into endpoint
>>
>> Changes in v7:
>> -- split yaml out of dtsi patch
>> -- link-frequencies from link rate to symbol rate
>> -- deprecation of old data-lanes property
>>
>> Changes in v8:
>> -- correct Bjorn mail address to kernel.org
>>
>> Changes in v10:
>> -- add menu item to data-lanes and link-frequecnis
>>
>> Changes in v11:
>> -- add endpoint property at port@1
>>
>> Signed-off-by: Kuogee Hsieh <quic_khsieh@...cinc.com>`
>
> Applying: dt-bindings: msm/dp: add data-lanes and link-frequencies 
> property
> .git/rebase-apply/patch:47: trailing whitespace.
>
> .git/rebase-apply/patch:51: trailing whitespace.
>
>
> Also the dt_binding_check fails with an error for this schema. And 
> after fixing the error in the schema I faced an example validation 
> error. Did you check that the schema is correct and that the example 
> validates against the schema?

yes, but i run "make dt_binding_check 
DT_SCHEMA_FILES=Documentation/devicetree/bindings/display/msm/dp-controller.yaml" 
at mu v5.15 branch since

"make dt_binding_check" does not work at msm-next branch.

But I did not check trainiling whitespace this time.

>
>> ---
>>   .../bindings/display/msm/dp-controller.yaml        | 27 
>> ++++++++++++++++++++++
>>   1 file changed, 27 insertions(+)
>>
>> diff --git 
>> a/Documentation/devicetree/bindings/display/msm/dp-controller.yaml 
>> b/Documentation/devicetree/bindings/display/msm/dp-controller.yaml
>> index f2515af..2a7fdef8 100644
>> --- a/Documentation/devicetree/bindings/display/msm/dp-controller.yaml
>> +++ b/Documentation/devicetree/bindings/display/msm/dp-controller.yaml
>> @@ -81,6 +81,7 @@ properties:
>>       data-lanes:
>>       $ref: /schemas/types.yaml#/definitions/uint32-array
>> +    deprecated: true
>>       minItems: 1
>>       maxItems: 4
>>       items:
>> @@ -96,6 +97,7 @@ properties:
>>       ports:
>>       $ref: /schemas/graph.yaml#/properties/ports
>> +
>>       properties:
>>         port@0:
>>           $ref: /schemas/graph.yaml#/properties/port
>> @@ -105,6 +107,29 @@ properties:
>>           $ref: /schemas/graph.yaml#/properties/port
>>           description: Output endpoint of the controller
>>   +        properties:
>> +          endpoint:
>> +            $ref: /schemas/media/video-interfaces.yaml#
>> +
>> +            properties:
>> +              remote-endpoint: true
>
> PLease add empty lines between the property definitions
>
>> +              data-lanes:
>> +                $ref: /schemas/types.yaml#/definitions/uint32-array
>
> This is already a part of video-interfaces, so you don't need $ref
>
>> +                minItems: 1
>> +                maxItems: 4
>> +                items:
>> +                  maximum: 3
>
> enum: [0, 1, 2, 3]
>
>> +              link-frequencies:
>> +                $ref: /schemas/types.yaml#/definitions/uint64-array
>> +                minItems: 1
>> +                maxItems: 4
>> +                items:
>> +                  maximum: 8100000000
>
> I think we can have enum here too.
>
>> +
>> +  required:
>> +    - port@0
>> +    - port@1
>> +
>>   required:
>>     - compatible
>>     - reg
>> @@ -193,6 +218,8 @@ examples:
>>                   reg = <1>;
>>                   endpoint {
>>                       remote-endpoint = <&typec>;
>> +                    data-lanes = <0 1>;
>> +                    link-frequencies = /bits/ 64 <1620000000 
>> 2700000000 5400000000 8100000000>;
>>                   };
>>               };
>>           };
>