[PATCH 3/5] dt-bindings: usb: dwc2: Add support for Canaan K230 SoC

[Rob Herring (Arm)]

On Tue, 30 Dec 2025 10:37:22 +0800, Jiayu Du wrote:
> Add 'canaan,k230-usb' compatible string with 'snps,dwc2' as fallback
> for the DWC2 IP which is used by Canaan K230.
> 
> Signed-off-by: Jiayu Du <jiayu.riscv at isrc.iscas.ac.cn>
> ---
>  Documentation/devicetree/bindings/usb/dwc2.yaml | 3 +++
>  1 file changed, 3 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/soc/canaan/canaan,k230-hisys-cfg.yaml: Unresolvable reference: schemas/phy/canaan,k230-usb-phy.yaml#
/builds/robherring/dt-review-ci/linux/Documentation/devicetree/bindings/phy/canaan,k230-usb-phy.yaml: properties:reg: {'description': 'Two register regions for USB PHY in HiSysConfig syscon block.', 'items': [{'description': 'USB PHY test control reg (pullup/pulldown config)'}, {'description': 'USB PHY core control reg (PLL/transceiver tuning)'}], 'minItems': 2, 'maxItems': 2} should not be valid under {'required': ['maxItems']}
	hint: "maxItems" is not needed with an "items" list
	from schema $id: http://devicetree.org/meta-schemas/items.yaml
/builds/robherring/dt-review-ci/linux/Documentation/devicetree/bindings/phy/canaan,k230-usb-phy.yaml: properties:reg: 'oneOf' conditional failed, one must be fixed:
	False schema does not allow 2
	[{'description': 'USB PHY test control reg (pullup/pulldown config)'}, {'description': 'USB PHY core control reg (PLL/transceiver tuning)'}] is too long
	[{'description': 'USB PHY test control reg (pullup/pulldown config)'}, {'description': 'USB PHY core control reg (PLL/transceiver tuning)'}] is too short
	1 was expected
	hint: "minItems" is only needed if less than the "items" list length
	from schema $id: http://devicetree.org/meta-schemas/items.yaml
Lexical error: Documentation/devicetree/bindings/soc/canaan/canaan,k230-hisys-cfg.example.dts:27.35-56 Unexpected 'K230_HS_USB0_AHB_GATE'
Lexical error: Documentation/devicetree/bindings/soc/canaan/canaan,k230-hisys-cfg.example.dts:34.35-56 Unexpected 'K230_HS_USB1_AHB_GATE'
FATAL ERROR: Syntax error parsing input tree
make[2]: *** [scripts/Makefile.dtbs:145: Documentation/devicetree/bindings/soc/canaan/canaan,k230-hisys-cfg.example.dtb] Error 1
make[2]: *** Waiting for unfinished jobs....
make[1]: *** [/builds/robherring/dt-review-ci/linux/Makefile:1565: 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/20251230023725.15966-4-jiayu.riscv@isrc.iscas.ac.cn

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.