[PATCH v5 2/6] dt-bindings: PCI: qcom,pcie-sa8775p: document qcs8300

[Ziyue Zhang]

On 5/7/2025 1:10 PM, Krzysztof Kozlowski wrote:
> On Wed, May 07, 2025 at 11:10:15AM GMT, Ziyue Zhang wrote:
>> Add compatible for qcs8300 platform, with sa8775p as the fallback.
>>
>> Signed-off-by: Ziyue Zhang <quic_ziyuzhan at quicinc.com>
>> ---
>>   .../bindings/pci/qcom,pcie-sa8775p.yaml       | 26 ++++++++++++++-----
>>   1 file changed, 19 insertions(+), 7 deletions(-)
>>
>> diff --git a/Documentation/devicetree/bindings/pci/qcom,pcie-sa8775p.yaml b/Documentation/devicetree/bindings/pci/qcom,pcie-sa8775p.yaml
>> index efde49d1bef8..154bb60be402 100644
>> --- a/Documentation/devicetree/bindings/pci/qcom,pcie-sa8775p.yaml
>> +++ b/Documentation/devicetree/bindings/pci/qcom,pcie-sa8775p.yaml
>> @@ -16,7 +16,12 @@ description:
>>   
>>   properties:
>>     compatible:
>> -    const: qcom,pcie-sa8775p
>> +    oneOf:
>> +      - const: qcom,pcie-sa8775p
>> +      - items:
>> +          - enum:
>> +              - qcom,pcie-qcs8300
>> +          - const: qcom,pcie-sa8775p
>>   
>>     reg:
>>       minItems: 6
>> @@ -45,7 +50,7 @@ properties:
>>   
>>     interrupts:
>>       minItems: 8
>> -    maxItems: 8
>> +    maxItems: 9
> I don't understand why this is flexible for sa8775p. I assume this
> wasn't tested or finished, just like your previous patch suggested.
>
> Please send complete bindings once you finish them or explain what
> exactly changed in the meantime.
>
> Best regards,
> Krzysztof

Hi Krzysztof
Global interrupt is optional in the PCIe driver. It is not present in 
the SA8775p PCIe device tree node, but it is required for the QCS8300
I did the DTBs and yaml checks before pushing this patch. This is how
I became aware that `maxItem` needed to be changed to 9.

BRs
Ziyue