Re: [PATCH v3 2/4] dt-bindings: PCI: qcom: correct clocks for SC8180x

[Konrad Dybcio]

On 12/11/23 11:04, Krzysztof Kozlowski wrote:
> On 09/12/2023 18:38, Konrad Dybcio wrote:
> > On 8.12.2023 11:51, Krzysztof Kozlowski wrote:
> > > PCI node in Qualcomm SC8180x DTS has 8 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
> > >
> > > Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@xxxxxxxxxx>
> > >
> > > ---
> > [...]
> >
> > > +          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
> > Are we sure this one is actually necessary? Or is it just for the
> > SMMU debug peripheral? [1] Would be nice to test if it works
> > normally (unused clk shutdown / forced shutdown of this one might
> > be necessary in case it's on from XBL) and during a PCIe-related
> > SMMU fault.
>
> I did not validate whether the list is actually correct with datasheets,
> but aligned it to DTS. I don't have the hardware to test.
While I can't test suspend yet, the PCIe itself works fine
without these clocks. Mani, can we get rid of it?

Konrad