Re: [PATCH v2 3/4] dt-bindings: net: qcom,ethqos: Convert bindings to yaml

From: Krzysztof Kozlowski
Date: Fri Sep 30 2022 - 07:16:30 EST


On 30/09/2022 10:12, Bhupesh Sharma wrote:
>>> + snps,reset-gpio:
>>> + maxItems: 1
>>
>> Why is this one here? It's already in snps,dwmac.
>>
>> Actually this applies to several other properties. You have
>> unevaluatedProperties:false, so you do not have to duplicate snps,dwmac.
>> You only need to constrain it, like we said about interrupts in your
>> previous patch.
>
> I was actually getting errors like the following without the same:
>
> arm64/boot/dts/qcom/qcs404-evb-1000.dtb: ethernet@7a80000: Unevaluated
> properties are not allowed ('snps,tso' was unexpected)
> From schema: Documentation/devicetree/bindings/net/qcom,ethqos.yaml
>
> So, its not clear to me that even though 'snps,dwmac.yaml' is referenced
> here, the property appears as unevaluated.

Because snps,tso is not allowed, but the rest is.

>
>>> +
>>> + power-domains:
>>> + maxItems: 1
>>> +
>>> + resets:
>>> + maxItems: 1
>>> +
>>> + rx-fifo-depth:
>>> + $ref: /schemas/types.yaml#/definitions/uint32
>>> +
>>> + tx-fifo-depth:
>>> + $ref: /schemas/types.yaml#/definitions/uint32
>>> +
>>> + snps,tso:
>>> + type: boolean
>>> + description: Enables the TSO feature (otherwise managed by MAC HW capability register).
>>
>> You add here several new properties. Mention in commit msg changes from
>> pure conversion with answer to "why".
>
> Right, most of them are to avoid the make dtbs_check errors / warnings
> like the one mentioned above.

All of them should not be here.

Best regards,
Krzysztof