linux-kernel - Re: [PATCH v3 01/15] dt-bindings: PCI: qcom: Fix sc8180x clocks and interrupts

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Message-ID: <ZHhG4LOgfYgWbFt7@matsya>
Date:   Thu, 1 Jun 2023 12:51:04 +0530
From:   Vinod Koul <vkoul@...nel.org>
To:     Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
Cc:     Bjorn Andersson <andersson@...nel.org>,
        linux-arm-msm@...r.kernel.org,
        Konrad Dybcio <konrad.dybcio@...aro.org>,
        Lorenzo Pieralisi <lpieralisi@...nel.org>,
        Krzysztof Wilczyński <kw@...ux.com>,
        Rob Herring <robh@...nel.org>,
        Bjorn Helgaas <bhelgaas@...gle.com>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Conor Dooley <conor+dt@...nel.org>,
        Manivannan Sadhasivam <mani@...nel.org>,
        linux-pci@...r.kernel.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH v3 01/15] dt-bindings: PCI: qcom: Fix sc8180x clocks and
 interrupts

On 31-05-23, 10:19, Krzysztof Kozlowski wrote:
> On 30/05/2023 18:24, Vinod Koul wrote:
> > Commit 45a3ec891370 ("PCI: qcom: Add sc8180x compatible") added sc8180x
> > compatible and commit 075a9d55932e ("dt-bindings: PCI: qcom: Convert to
> > YAML") converted the description to yaml
> > 
> > But there are still some errors specific to sc8180x which this change
> > attempts to fix. The clocks and resets for sc8180 pcie controller are
> > different so need to be documented separately
> 
> I don't get what's the error here to fix. The clocks you list are
> already there as part of oneOf.

It was listed with sm8150 block which has different set of clocks than
used in sc81880x, so this needs to have its own block of clocks and
resets

> > 
> > Signed-off-by: Vinod Koul <vkoul@...nel.org>
> > ---
> >  .../devicetree/bindings/pci/qcom,pcie.yaml    | 29 ++++++++++++++++++-
> >  1 file changed, 28 insertions(+), 1 deletion(-)
> > 
> > diff --git a/Documentation/devicetree/bindings/pci/qcom,pcie.yaml b/Documentation/devicetree/bindings/pci/qcom,pcie.yaml
> > index 81971be4e554..40a1f451a3d3 100644
> > --- a/Documentation/devicetree/bindings/pci/qcom,pcie.yaml
> > +++ b/Documentation/devicetree/bindings/pci/qcom,pcie.yaml
> > @@ -476,6 +476,33 @@ allOf:
> >            items:
> >              - const: pci # PCIe core reset
> >  
> > +  - if:
> > +      properties:
> > +        compatible:
> > +          contains:
> > +            enum:
> > +              - qcom,pcie-sc8180x
> > +    then:
> > +      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
> > +        resets:
> > +          maxItems: 1
> > +        reset-names:
> > +          items:
> > +            - const: pci # PCIe core reset
> > +
> >    - if:
> >        properties:
> >          compatible:
> > @@ -524,7 +551,6 @@ allOf:
> >          compatible:
> >            contains:
> >              enum:
> > -              - qcom,pcie-sc8180x
> >                - qcom,pcie-sm8150
> >                - qcom,pcie-sm8250
> >      then:
> > @@ -749,6 +775,7 @@ allOf:
> >            contains:
> >              enum:
> >                - qcom,pcie-sa8540p
> > +              - qcom,pcie-sc8180x
> >                - qcom,pcie-sc8280xp
> >      then:
> >        required:
> 
> Best regards,
> Krzysztof

-- 
~Vinod