Re: [PATCH 2/2] dt-bindings: PCI: qcom: correct clocks for SC8180x and SM8150

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On Sun, 12 Nov 2023 at 20:46, Krzysztof Kozlowski
<krzysztof.kozlowski@xxxxxxxxxx> wrote:
>
> PCI node in Qualcomm SC8180x DTS has 8 clocks, while one on SM8150 has 7
> clocks:
>
>   sc8180x-primus.dtb: pci@1c00000: 'oneOf' conditional failed, one must be fixed:
>     ['pipe', 'aux', 'cfg', 'bus_master', 'bus_slave', 'slave_q2a', 'ref', 'tbu'] is too short
>
>   sm8150-hdk.dtb: pci@1c00000: 'oneOf' conditional failed, one must be fixed:
>     ['pipe', 'aux', 'cfg', 'bus_master', 'bus_slave', 'slave_q2a', 'ref', 'tbu'] is too short
>
> Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@xxxxxxxxxx>
> ---
>  .../devicetree/bindings/pci/qcom,pcie.yaml    | 58 ++++++++++++++++++-
>  1 file changed, 57 insertions(+), 1 deletion(-)
>
> diff --git a/Documentation/devicetree/bindings/pci/qcom,pcie.yaml b/Documentation/devicetree/bindings/pci/qcom,pcie.yaml
> index 14d25e8a18e4..4c993ea97d7c 100644
> --- a/Documentation/devicetree/bindings/pci/qcom,pcie.yaml
> +++ b/Documentation/devicetree/bindings/pci/qcom,pcie.yaml
> @@ -479,6 +479,35 @@ allOf:
>            items:
>              - const: pci # PCIe core reset
>
> +  - if:
> +      properties:
> +        compatible:
> +          contains:
> +            enum:
> +              - qcom,pcie-sc8180x
> +    then:
> +      oneOf:
> +        - properties:
> +            clocks:
> +              minItems: 8
> +              maxItems: 8
> +            clock-names:
> +              items:
> +                - const: pipe # PIPE clock
> +                - const: aux # Auxiliary clock
> +                - const: cfg # Configuration clock
> +                - const: bus_master # Master AXI clock
> +                - const: bus_slave # Slave AXI clock
> +                - const: slave_q2a # Slave Q2A clock
> +                - const: ref # REFERENCE clock
> +                - const: tbu # PCIe TBU clock
> +      properties:
> +        resets:
> +          maxItems: 1
> +        reset-names:
> +          items:
> +            - const: pci # PCIe core reset
> +
>    - if:
>        properties:
>          compatible:
> @@ -527,8 +556,35 @@ allOf:
>          compatible:
>            contains:
>              enum:
> -              - qcom,pcie-sc8180x
>                - qcom,pcie-sm8150
> +    then:
> +      oneOf:
> +        - properties:
> +            clocks:
> +              minItems: 7
> +              maxItems: 7
> +            clock-names:
> +              items:
> +                - const: pipe # PIPE clock
> +                - const: aux # Auxiliary clock
> +                - const: cfg # Configuration clock
> +                - const: bus_master # Master AXI clock
> +                - const: bus_slave # Slave AXI clock
> +                - const: slave_q2a # Slave Q2A clock

Which actually brings up a question, there is the corresponding clkref
gcc clock.
Mani, do you know if we should use it on sm8150?

> +                - const: tbu # PCIe TBU clock
> +      properties:
> +        resets:
> +          maxItems: 1
> +        reset-names:
> +          items:
> +            - const: pci # PCIe core reset
> +
> +
> +  - if:
> +      properties:
> +        compatible:
> +          contains:
> +            enum:
>                - qcom,pcie-sm8250
>      then:
>        oneOf:
> --
> 2.34.1
>
>


-- 
With best wishes
Dmitry




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