Re: [PATCH v2 1/2] dt-bindings: perf: marvell: Document CN20K DDR PMU

From: Rob Herring (Arm)

Date: Sun Mar 29 2026 - 12:31:59 EST



On Sun, 29 Mar 2026 20:54:38 +0530, Geetha sowjanya wrote:
> Add a devicetree binding for the Marvell CN20K DDR performance
> monitor block, including the marvell,cn20k-ddr-pmu compatible
> string and the required MMIO reg region.
>
> Signed-off-by: Geetha sowjanya <gakula@xxxxxxxxxxx>
> ---
>
> Changes in v1:
> - Added a description field to the binding.
> - Simplified the compatible property using 'const' instead of 'items/enum'.
> - Updated the example node name to include a unit-address matching the reg base.
>
> .../bindings/perf/marvell-cn20k-ddr.yaml | 39 +++++++++++++++++++
> 1 file changed, 39 insertions(+)
> create mode 100644 Documentation/devicetree/bindings/perf/marvell-cn20k-ddr.yaml
>

My bot found errors running 'make dt_binding_check' on your patch:

yamllint warnings/errors:
./Documentation/devicetree/bindings/perf/marvell-cn20k-ddr.yaml:35:1: [error] syntax error: found character '\t' that cannot start any token (syntax)

dtschema/dtc warnings/errors:
/builds/robherring/dt-review-ci/linux/Documentation/devicetree/bindings/perf/marvell-cn20k-ddr.yaml: ignoring, error parsing file
./Documentation/devicetree/bindings/perf/marvell-cn20k-ddr.yaml:35:1: found character '\t' that cannot start any token
make[2]: *** Deleting file 'Documentation/devicetree/bindings/perf/marvell-cn20k-ddr.example.dts'
Documentation/devicetree/bindings/perf/marvell-cn20k-ddr.yaml:35:1: found character '\t' that cannot start any token
make[2]: *** [Documentation/devicetree/bindings/Makefile:26: Documentation/devicetree/bindings/perf/marvell-cn20k-ddr.example.dts] Error 1
make[2]: *** Waiting for unfinished jobs....
make[1]: *** [/builds/robherring/dt-review-ci/linux/Makefile:1614: dt_binding_check] Error 2
make: *** [Makefile:248: __sub-make] Error 2

doc reference errors (make refcheckdocs):

See https://patchwork.kernel.org/project/devicetree/patch/20260329152439.10573-2-gakula@xxxxxxxxxxx

The base for the series is generally the latest rc1. A different dependency
should be noted in *this* patch.

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 after running the above command yourself. Note
that DT_SCHEMA_FILES can be set to your schema file to speed up checking
your schema. However, it must be unset to test all examples with your schema.