Re: [PATCH 3/7] dt-bindings: PCI: qcom: Add IPQ9574 PCIe controller

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On 03/04/2024 20:05, mr.nuke.me@xxxxxxxxx wrote:
> 
> 
> On 4/3/24 02:14, Krzysztof Kozlowski wrote:
>> On 02/04/2024 21:25, Alexandru Gagniuc wrote:
>>> IPQ9574 has PCIe controllers which are almost identical to IPQ6018.
>>> The only difference is that the "iface" clock is not required.
>>> Document this difference along with the compatible string.
>>>
>>> Signed-off-by: Alexandru Gagniuc <mr.nuke.me@xxxxxxxxx>
>>> ---
>>>   .../devicetree/bindings/pci/qcom,pcie.yaml    | 32 +++++++++++++++++++
>>>   1 file changed, 32 insertions(+)
>>>
>>> diff --git a/Documentation/devicetree/bindings/pci/qcom,pcie.yaml b/Documentation/devicetree/bindings/pci/qcom,pcie.yaml
>>> index cf9a6910b542..6eb29547c18e 100644
>>> --- a/Documentation/devicetree/bindings/pci/qcom,pcie.yaml
>>> +++ b/Documentation/devicetree/bindings/pci/qcom,pcie.yaml
>>> @@ -26,6 +26,7 @@ properties:
>>>             - qcom,pcie-ipq8064-v2
>>>             - qcom,pcie-ipq8074
>>>             - qcom,pcie-ipq8074-gen3
>>> +          - qcom,pcie-ipq9574
>>>             - qcom,pcie-msm8996
>>>             - qcom,pcie-qcs404
>>>             - qcom,pcie-sdm845
>>> @@ -383,6 +384,35 @@ allOf:
>>>               - const: axi_s # AXI Slave clock
>>>               - const: axi_bridge # AXI bridge clock
>>>               - const: rchng
>>> +
>>> +  - if:
>>> +      properties:
>>> +        compatible:
>>> +          contains:
>>> +            enum:
>>> +              - qcom,pcie-ipq9574
>>> +    then:
>>> +      properties:
>>> +        clocks:
>>> +          minItems: 4
>>> +          maxItems: 4
>>> +        clock-names:
>>> +          items:
>>> +            - const: axi_m # AXI Master clock
>>> +            - const: axi_s # AXI Slave clock
>>> +            - const: axi_bridge # AXI bridge clock
>>> +            - const: rchng
>>> +
>>> +  - if:
>>> +      properties:
>>> +        compatible:
>>> +          contains:
>>> +            enum:
>>> +              - qcom,pcie-ipq6018
>>> +              - qcom,pcie-ipq8074-gen3
>>> +              - qcom,pcie-ipq9574
>>> +    then:
>>
>> Do not introduce inconsistent style. All if:then: define both clocks and
>> resets, right? And after your patch not anymore?
>>
> I kept the resets in one place because they are the same cross the ipq* 
> variants.
> 
> Do I understand correctly that you wish me to split up the resets as well?
> 
>      if ipq8074 ipq6018
>          clocks
>          resets
> 
>      if ipq9754
>          clocks
>          resets

Yes, keep it consistent with all other cases.

Best regards,
Krzysztof





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