Re: [PATCH 1/5] dt-bindings: net: qca,ar803x: Add IPQ5018 Internal GE PHY support

[Konrad Dybcio <konrad.dybcio@oss.qualcomm.com>]

On 5/26/25 2:55 PM, Krzysztof Kozlowski wrote:
> On 26/05/2025 08:43, George Moussalem wrote:
>>>> +  qca,dac:
>>>> +    description:
>>>> +      Values for MDAC and EDAC to adjust amplitude, bias current settings,
>>>> +      and error detection and correction algorithm. Only set in a PHY to PHY
>>>> +      link architecture to accommodate for short cable length.
>>>> +    $ref: /schemas/types.yaml#/definitions/uint32-array
>>>> +    items:
>>>> +      - items:
>>>> +          - description: value for MDAC. Expected 0x10, if set
>>>> +          - description: value for EDAC. Expected 0x10, if set
>>>
>>> If this is fixed to 0x10, then this is fully deducible from compatible.
>>> Drop entire property.
>>
>> as mentioned to Andrew, I can move the required values to the driver 
>> itself, but a property would still be required to indicate that this PHY 
>> is connected to an external PHY (ex. qca8337 switch). In that case, the 
>> values need to be set. Otherwise, not..
>>
>> Would qcom,phy-to-phy-dac (boolean) do?
> 
> Seems fine to me.

Can the driver instead check for a phy reference?

Konrad