linux-kernel - Re: [PATCH v2 14/21] dt-bindings: cpufreq: qcom-hw: document support for SA8255p

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Message-ID: <c163149b-bdf1-423b-ab51-f734d00277fe@quicinc.com>
Date: Wed, 4 Sep 2024 07:19:52 -0700
From: Nikunj Kela <quic_nkela@...cinc.com>
To: Krzysztof Kozlowski <krzk@...nel.org>
CC: <andersson@...nel.org>, <konradybcio@...nel.org>, <robh@...nel.org>,
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Subject: Re: [PATCH v2 14/21] dt-bindings: cpufreq: qcom-hw: document support
 for SA8255p


On 9/4/2024 6:17 AM, Krzysztof Kozlowski wrote:
> On 04/09/2024 14:27, Nikunj Kela wrote:
>> On 9/3/2024 11:26 PM, Krzysztof Kozlowski wrote:
>>> On Tue, Sep 03, 2024 at 03:02:33PM -0700, Nikunj Kela wrote:
>>>> Add compatible for the cpufreq engine representing support on SA8255p.
>>>>
>>>> Signed-off-by: Nikunj Kela <quic_nkela@...cinc.com>
>>>> ---
>>>>  .../bindings/cpufreq/cpufreq-qcom-hw.yaml        | 16 ++++++++++++++++
>>>>  1 file changed, 16 insertions(+)
>>>>
>>>> diff --git a/Documentation/devicetree/bindings/cpufreq/cpufreq-qcom-hw.yaml b/Documentation/devicetree/bindings/cpufreq/cpufreq-qcom-hw.yaml
>>>> index 1e9797f96410..84865e553c8b 100644
>>>> --- a/Documentation/devicetree/bindings/cpufreq/cpufreq-qcom-hw.yaml
>>>> +++ b/Documentation/devicetree/bindings/cpufreq/cpufreq-qcom-hw.yaml
>>>> @@ -34,6 +34,7 @@ properties:
>>>>          items:
>>>>            - enum:
>>>>                - qcom,qdu1000-cpufreq-epss
>>>> +              - qcom,sa8255p-cpufreq-epss
>>>>                - qcom,sa8775p-cpufreq-epss
>>>>                - qcom,sc7280-cpufreq-epss
>>>>                - qcom,sc8280xp-cpufreq-epss
>>>> @@ -206,6 +207,21 @@ allOf:
>>>>          interrupt-names:
>>>>            minItems: 2
>>>>  
>>>> +  - if:
>>>> +      properties:
>>>> +        compatible:
>>>> +          contains:
>>>> +            enum:
>>>> +              - qcom,sa8255p-cpufreq-epss
>>>> +    then:
>>>> +      properties:
>>>> +        reg:
>>>> +          minItems: 2
>>>> +          maxItems: 2
>>>> +
>>>> +        reg-names:
>>>> +          minItems: 2
>>>> +          maxItems: 2
>>> What about interrupts? You need to constrain each of such lists.
>>>
>>> Best regards,
>>> Krzysztof
>> Interrupts are not required, I still need to put constraints for
> It's irrelevant whether they are required or not. Each property should
> be narrowed.

So evenif we don't use interrupts property in our DT(patch#21), we need
to mention interrupts here? You suggest we put interrupts with maxItems: 0?

I wonder why SA8775p compatible is not in constraint list..

>> interrupts? BTW, there is no if block for SA8775p binding in this file.
>
>
> Best regards,
> Krzysztof
>