Re: [PATCH v5 08/17] dt-bindings: riscv: Require block-size for Zicbom, Zicbop, and Zicboz

[Rob Herring (Arm)]

On Wed, 01 Jul 2026 08:52:21 -0400, Guodong Xu wrote:
> Zicbom, Zicbop, and Zicboz have no default cache block size, so a
> devicetree that declares one must also provide the matching
> riscv,cbom/cbop/cboz-block-size property. Make it required so a
> missing block-size property can be caught by dtbs_check.
> 
> Suggested-by: Conor Dooley <conor.dooley@xxxxxxxxxxxxx>
> Signed-off-by: Guodong Xu <docular.xu@xxxxxxxxx>
> ---
> v5: New patch.
> ---
>  .../devicetree/bindings/riscv/extensions.yaml      | 26 ++++++++++++++++++++++
>  1 file changed, 26 insertions(+)
> 

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

yamllint warnings/errors:

dtschema/dtc warnings/errors:
/builds/robherring/dt-review-ci/linux/Documentation/devicetree/bindings/cpu/idle-states.example.dtb: cpu@0 (riscv): 'riscv,cbom-block-size' is a required property
	from schema $id: http://devicetree.org/schemas/riscv/cpus.yaml
/builds/robherring/dt-review-ci/linux/Documentation/devicetree/bindings/cpu/idle-states.example.dtb: cpu@0 (riscv): 'riscv,cbop-block-size' is a required property
	from schema $id: http://devicetree.org/schemas/riscv/cpus.yaml
/builds/robherring/dt-review-ci/linux/Documentation/devicetree/bindings/cpu/idle-states.example.dtb: cpu@0 (riscv): 'riscv,cboz-block-size' is a required property
	from schema $id: http://devicetree.org/schemas/riscv/cpus.yaml
/builds/robherring/dt-review-ci/linux/Documentation/devicetree/bindings/cpu/idle-states.example.dtb: cpu@0 (riscv): Unevaluated properties are not allowed ('riscv,isa' was unexpected)
	from schema $id: http://devicetree.org/schemas/riscv/cpus.yaml
/builds/robherring/dt-review-ci/linux/Documentation/devicetree/bindings/cpu/idle-states.example.dtb: cpu@1 (riscv): 'riscv,cbom-block-size' is a required property
	from schema $id: http://devicetree.org/schemas/riscv/cpus.yaml
/builds/robherring/dt-review-ci/linux/Documentation/devicetree/bindings/cpu/idle-states.example.dtb: cpu@1 (riscv): 'riscv,cbop-block-size' is a required property
	from schema $id: http://devicetree.org/schemas/riscv/cpus.yaml
/builds/robherring/dt-review-ci/linux/Documentation/devicetree/bindings/cpu/idle-states.example.dtb: cpu@1 (riscv): 'riscv,cboz-block-size' is a required property
	from schema $id: http://devicetree.org/schemas/riscv/cpus.yaml
/builds/robherring/dt-review-ci/linux/Documentation/devicetree/bindings/cpu/idle-states.example.dtb: cpu@1 (riscv): Unevaluated properties are not allowed ('riscv,isa' was unexpected)
	from schema $id: http://devicetree.org/schemas/riscv/cpus.yaml
/builds/robherring/dt-review-ci/linux/Documentation/devicetree/bindings/cpu/idle-states.example.dtb: cpu@10 (riscv): 'riscv,cbom-block-size' is a required property
	from schema $id: http://devicetree.org/schemas/riscv/cpus.yaml
/builds/robherring/dt-review-ci/linux/Documentation/devicetree/bindings/cpu/idle-states.example.dtb: cpu@10 (riscv): 'riscv,cbop-block-size' is a required property
	from schema $id: http://devicetree.org/schemas/riscv/cpus.yaml
/builds/robherring/dt-review-ci/linux/Documentation/devicetree/bindings/cpu/idle-states.example.dtb: cpu@10 (riscv): 'riscv,cboz-block-size' is a required property
	from schema $id: http://devicetree.org/schemas/riscv/cpus.yaml
/builds/robherring/dt-review-ci/linux/Documentation/devicetree/bindings/cpu/idle-states.example.dtb: cpu@10 (riscv): Unevaluated properties are not allowed ('riscv,isa' was unexpected)
	from schema $id: http://devicetree.org/schemas/riscv/cpus.yaml
/builds/robherring/dt-review-ci/linux/Documentation/devicetree/bindings/cpu/idle-states.example.dtb: cpu@11 (riscv): 'riscv,cbom-block-size' is a required property
	from schema $id: http://devicetree.org/schemas/riscv/cpus.yaml
/builds/robherring/dt-review-ci/linux/Documentation/devicetree/bindings/cpu/idle-states.example.dtb: cpu@11 (riscv): 'riscv,cbop-block-size' is a required property
	from schema $id: http://devicetree.org/schemas/riscv/cpus.yaml
/builds/robherring/dt-review-ci/linux/Documentation/devicetree/bindings/cpu/idle-states.example.dtb: cpu@11 (riscv): 'riscv,cboz-block-size' is a required property
	from schema $id: http://devicetree.org/schemas/riscv/cpus.yaml
/builds/robherring/dt-review-ci/linux/Documentation/devicetree/bindings/cpu/idle-states.example.dtb: cpu@11 (riscv): Unevaluated properties are not allowed ('riscv,isa' was unexpected)
	from schema $id: http://devicetree.org/schemas/riscv/cpus.yaml

doc reference errors (make refcheckdocs):

See https://patchwork.kernel.org/project/devicetree/patch/20260701-rva23u64-hwprobe-v2-v5-8-2c61f94a695a@xxxxxxxxx

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.