linux-kernel - Re: [PATCH v5 02/10] dt-bindings: phy: qcom,qmp-usb: Add Glymur USB UNI PHY compatible

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Message-ID: <00408896-2e25-2dd1-6e6e-2195317ee7fb@oss.qualcomm.com>
Date: Mon, 13 Oct 2025 16:44:19 -0700
From: Wesley Cheng <wesley.cheng@....qualcomm.com>
To: Krzysztof Kozlowski <krzk@...nel.org>, krzk+dt@...nel.org,
        conor+dt@...nel.org, konrad.dybcio@....qualcomm.com,
        dmitry.baryshkov@....qualcomm.com, kishon@...nel.org, vkoul@...nel.org,
        gregkh@...uxfoundation.org, robh@...nel.org
Cc: linux-arm-msm@...r.kernel.org, linux-phy@...ts.infradead.org,
        linux-usb@...r.kernel.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH v5 02/10] dt-bindings: phy: qcom,qmp-usb: Add Glymur USB
 UNI PHY compatible



On 10/10/2025 5:04 PM, Krzysztof Kozlowski wrote:
> On 07/10/2025 00:19, Wesley Cheng wrote:
>> The Glymur USB subsystem contains a multiport controller, which utilizes
>> two QMP UNI PHYs.  Add the proper compatible string for the Glymur SoC, and
>> the required clkref clock name.
>>
>> Signed-off-by: Wesley Cheng <wesley.cheng@....qualcomm.com>
>> ---
>>   .../phy/qcom,sc8280xp-qmp-usb3-uni-phy.yaml   | 35 +++++++++++++++++++
>>   1 file changed, 35 insertions(+)
>>
>> diff --git a/Documentation/devicetree/bindings/phy/qcom,sc8280xp-qmp-usb3-uni-phy.yaml b/Documentation/devicetree/bindings/phy/qcom,sc8280xp-qmp-usb3-uni-phy.yaml
>> index a1b55168e050..b0ce803d2b49 100644
>> --- a/Documentation/devicetree/bindings/phy/qcom,sc8280xp-qmp-usb3-uni-phy.yaml
>> +++ b/Documentation/devicetree/bindings/phy/qcom,sc8280xp-qmp-usb3-uni-phy.yaml
>> @@ -16,6 +16,7 @@ description:
>>   properties:
>>     compatible:
>>       enum:
>> +      - qcom,glymur-qmp-usb3-uni-phy
>>         - qcom,ipq5424-qmp-usb3-phy
>>         - qcom,ipq6018-qmp-usb3-phy
>>         - qcom,ipq8074-qmp-usb3-phy
>> @@ -62,6 +63,8 @@ properties:
>>   
>>     vdda-pll-supply: true
>>   
>> +  refgen-supply: true
>> +
>>     "#clock-cells":
>>       const: 0
>>   
>> @@ -157,6 +160,25 @@ allOf:
>>           compatible:
>>             contains:
>>               enum:
>> +              - qcom,glymur-qmp-usb3-uni-phy
>> +    then:
>> +      properties:
>> +        clocks:
> 
> Missing minItems.
> 

Hi Krzysztof,

Won't the minItems be inherited by the base definition?

>> +          maxItems: 5
>> +        clock-names:
>> +          items:
>> +            - const: aux
>> +            - const: clkref
>> +            - const: ref
> 
> What is the difference between these two? Which block INPUTs
> (important!) they represent?
> 

clkref is the TCSR reference clock switch, and the ref is the actual CXO 
handle.

Thanks
Wesley Cheng