[PATCH v4 2/4] dt-bindings: PCI: qcom: Document the Glymur PCIe Controller
Abel Vesa
abel.vesa at linaro.org
Tue Oct 14 23:58:31 PDT 2025
On 25-10-14 18:50:37, Qiang Yu wrote:
> On Sun, Oct 12, 2025 at 05:01:45AM +0200, Krzysztof Kozlowski wrote:
> > On 11/10/2025 14:15, Abel Vesa wrote:
> > >>
> > >> properties:
> > >> compatible:
> > >> - const: qcom,pcie-x1e80100
> > >> + oneOf:
> > >> + - const: qcom,pcie-x1e80100
> > >> + - items:
> > >> + - enum:
> > >> + - qcom,glymur-pcie
> > >> + - const: qcom,pcie-x1e80100
> > >>
> > >
> > > The cnoc_sf_axi clock is not found on Glymur, at least according to this:
> > >
> > > https://lore.kernel.org/all/20250925-v3_glymur_introduction-v1-19-24b601bbecc0@oss.qualcomm.com/
> > >
> > > And dtbs_check reports the following:
> > >
> > > arch/arm64/boot/dts/qcom/glymur-crd.dtb: pci at 1b40000 (qcom,glymur-pcie): clock-names: ['aux', 'cfg', 'bus_master', 'bus_slave', 'slave_q2a', 'noc_aggr'] is too short
> > > from schema $id: http://devicetree.org/schemas/pci/qcom,pcie-x1e80100.yaml#
> > >
> > > One more thing:
> > >
> > > arch/arm64/boot/dts/qcom/glymur-crd.dtb: pci at 1b40000 (qcom,glymur-pcie): max-link-speed: 5 is not one of [1, 2, 3, 4]
> > > from schema $id: http://devicetree.org/schemas/pci/qcom,pcie-x1e80100.yaml#
> > >
> >
> > So that's another Glymur patch which wasn't ever tested?
>
> I tested all of these patch and also did dtb checks. That's how I found
> cnoc_sf_axi clock is not required. There was a discussion about whether we
> need to limit max speed to 16 GT and I limited it. I may forget to do dtb
> checks again after changing it to 32 GT. Let me push another patch to fix
> this.
Still, you need to add glymur specific clocks entry then, to fix the schema
w.r.t cnoc_sf_axi not being needed.
Best regards,
Abel
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