RE: [RFC PATCH v3 1/7] dt-bindings: bus: add CDX bus device tree bindings

["Gupta, Nipun" <Nipun.Gupta@amd.com>]

[AMD Official Use Only - General]



> -----Original Message-----
> From: Rob Herring <robh@kernel.org>
> Sent: Tuesday, September 6, 2022 11:17 PM
> To: Gupta, Nipun <Nipun.Gupta@amd.com>
> Cc: gregkh@linuxfoundation.org; eric.auger@redhat.com;
> devicetree@vger.kernel.org; linux-kbuild@vger.kernel.org;
> jeffrey.l.hugo@gmail.com; maz@kernel.org; Gupta, Puneet (DCG-ENG)
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> Subject: Re: [RFC PATCH v3 1/7] dt-bindings: bus: add CDX bus device tree
> bindings
> 
> [CAUTION: External Email]
> 
> On Tue, 06 Sep 2022 19:17:55 +0530, Nipun Gupta wrote:
> > This patch adds a devicetree binding documentation for CDX
> > bus.
> >
> > CDX bus controller dynamically detects CDX bus and the
> > devices on these bus using CDX firmware.
> >
> > Signed-off-by: Nipun Gupta <nipun.gupta@amd.com>
> > ---
> >  .../devicetree/bindings/bus/xlnx,cdx.yaml     | 75 +++++++++++++++++++
> >  MAINTAINERS                                   |  6 ++
> >  2 files changed, 81 insertions(+)
> >  create mode 100644 Documentation/devicetree/bindings/bus/xlnx,cdx.yaml
> >
> 
> My bot found errors running 'make DT_CHECKER_FLAGS=-m dt_binding_check'
> on your patch (DT_CHECKER_FLAGS is new in v5.13):
> 
> yamllint warnings/errors:
> 
> dtschema/dtc warnings/errors:
> Documentation/devicetree/bindings/bus/xlnx,cdx.example.dts:18.23-21.11:
> Warning (unit_address_vs_reg): /example-0/smmu@ec000000: node has a unit
> name, but no reg or ranges property
> Documentation/devicetree/bindings/bus/xlnx,cdx.example.dts:23.22-30.11:
> Warning (unit_address_vs_reg): /example-0/gic@e2000000: node has a unit
> name, but no reg or ranges property
> Documentation/devicetree/bindings/bus/xlnx,cdx.example.dts:26.35-29.15:
> Warning (unit_address_vs_reg): /example-0/gic@e2000000/gic-its@e2040000:
> node has a unit name, but no reg or ranges property
> /builds/robherring/linux-dt-
> review/Documentation/devicetree/bindings/bus/xlnx,cdx.example.dtb:
> smmu@ec000000: $nodename:0: 'smmu@ec000000' does not match
> '^iommu@[0-9a-f]*'
>         From schema: /builds/robherring/linux-dt-
> review/Documentation/devicetree/bindings/iommu/arm,smmu-v3.yaml
> /builds/robherring/linux-dt-
> review/Documentation/devicetree/bindings/bus/xlnx,cdx.example.dtb:
> smmu@ec000000: 'reg' is a required property
>         From schema: /builds/robherring/linux-dt-
> review/Documentation/devicetree/bindings/iommu/arm,smmu-v3.yaml
> /builds/robherring/linux-dt-
> review/Documentation/devicetree/bindings/bus/xlnx,cdx.example.dtb:
> gic@e2000000: $nodename:0: 'gic@e2000000' does not match '^interrupt-
> controller(@[0-9a-f,]+)*$'
>         From schema: /builds/robherring/linux-dt-
> review/Documentation/devicetree/bindings/interrupt-controller/arm,gic-
> v3.yaml
> /builds/robherring/linux-dt-
> review/Documentation/devicetree/bindings/bus/xlnx,cdx.example.dtb:
> gic@e2000000: '#interrupt-cells' is a dependency of 'interrupt-controller'
>         From schema: /builds/robherring/linux-dt-
> review/Documentation/devicetree/bindings/interrupt-controller/arm,gic-
> v3.yaml
> /builds/robherring/linux-dt-
> review/Documentation/devicetree/bindings/bus/xlnx,cdx.example.dtb:
> gic@e2000000: 'reg' is a required property
>         From schema: /builds/robherring/linux-dt-
> review/Documentation/devicetree/bindings/interrupt-controller/arm,gic-
> v3.yaml
> /builds/robherring/linux-dt-
> review/Documentation/devicetree/bindings/bus/xlnx,cdx.example.dtb:
> gic@e2000000: gic-its@e2040000: False schema does not allow {'compatible':
> ['arm,gic-v3-its'], 'msi-controller': True, 'phandle': [[1]]}
>         From schema: /builds/robherring/linux-dt-
> review/Documentation/devicetree/bindings/interrupt-controller/arm,gic-
> v3.yaml
> /builds/robherring/linux-dt-
> review/Documentation/devicetree/bindings/bus/xlnx,cdx.example.dtb:
> gic@e2000000: gic-its@e2040000: '#msi-cells' is a required property
>         From schema: /builds/robherring/linux-dt-
> review/Documentation/devicetree/bindings/interrupt-controller/arm,gic-
> v3.yaml
> /builds/robherring/linux-dt-
> review/Documentation/devicetree/bindings/bus/xlnx,cdx.example.dtb:
> gic@e2000000: gic-its@e2040000: 'reg' is a required property
>         From schema: /builds/robherring/linux-dt-
> review/Documentation/devicetree/bindings/interrupt-controller/arm,gic-
> v3.yaml
> /builds/robherring/linux-dt-
> review/Documentation/devicetree/bindings/bus/xlnx,cdx.example.dtb:
> gic@e2000000: 'oneOf' conditional failed, one must be fixed:
>         'interrupts' is a required property
>         'interrupts-extended' is a required property
>         From schema: /builds/robherring/linux-dt-
> review/Documentation/devicetree/bindings/interrupt-controller/arm,gic-
> v3.yaml
> /builds/robherring/linux-dt-
> review/Documentation/devicetree/bindings/bus/xlnx,cdx.example.dtb:
> cdx@4000000: reg: [[0, 67108864], [0, 4096]] is too long
>         From schema: /builds/robherring/linux-dt-
> review/Documentation/devicetree/bindings/bus/xlnx,cdx.yaml
> 
> doc reference errors (make refcheckdocs):
> 
> See
> https://nam11.safelinks.protection.outlook.com/?url=https%3A%2F%2Fpatchw
> ork.ozlabs.org%2Fpatch%2F&amp;data=05%7C01%7Cnipun.gupta%40amd.com
> %7C47f53d11f4024ba765f408da902fc525%7C3dd8961fe4884e608e11a82d994e
> 183d%7C0%7C0%7C637980832144301226%7CUnknown%7CTWFpbGZsb3d8eyJ
> WIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C
> 3000%7C%7C%7C&amp;sdata=BXO1d2OWdCQ1lb%2BEDNiUvmfSPPfxfzJET%2B
> uuAL9EdEY%3D&amp;reserved=0
> 
> This check can fail if there are any dependencies. The base for a patch
> series is generally the most recent rc1.
> 
> If you already ran 'make dt_binding_check' and didn't see the above
> error(s), then make sure 'yamllint' is installed and dt-schema is up to
> date:
> 
> pip3 install dtschema --upgrade
> 
> Please check and re-submit.

I did run make dt_binding_check, but did not see the issue.
Will update the dtschema and fix this.

Thanks,
Nipun