[PATCH 2/4] dt-bindings: usb: atmel,at91sam9g45-ehci: convert to DT schema

[Charan Pedumuru]

On 01-02-2026 18:07, Rob Herring (Arm) wrote:
> 
> On Sun, 01 Feb 2026 11:34:21 +0000, Charan Pedumuru wrote:
>> Convert Atmel AT91SAM9G45 EHCI USB Host Controller
>> binding to DT schema.
>> Changes during conversion:
>> - Include "usb-ehci" as a fallback compatible to allow atmel EHCI
>>   driver matching.
>>
>> Signed-off-by: Charan Pedumuru <charan.pedumuru at gmail.com>
>> ---
>>  .../bindings/usb/atmel,at91sam9g45-ehci.yaml       | 71 ++++++++++++++++++++++
>>  1 file changed, 71 insertions(+)
>>
> 
> My bot found errors running 'make dt_binding_check' on your patch:
> 
> yamllint warnings/errors:
> 
> dtschema/dtc warnings/errors:
> Warning: Duplicate compatible "usb-ehci" found in schemas matching "$id":
> 	http://devicetree.org/schemas/usb/atmel,at91sam9g45-ehci.yaml
> 	http://devicetree.org/schemas/usb/generic-ehci.yaml#
> Warning: Duplicate compatible "atmel,at91sam9g45-ehci" found in schemas matching "$id":
> 	http://devicetree.org/schemas/usb/atmel,at91sam9g45-ehci.yaml
> 	http://devicetree.org/schemas/usb/generic-ehci.yaml#
> /builds/robherring/dt-review-ci/linux/Documentation/devicetree/bindings/usb/atmel,at91sam9g45-ehci.example.dtb: usb at 500000 (atmel,at91sam9g45-ehci): Unevaluated properties are not allowed ('clock-names' was unexpected)
> 	from schema $id: http://devicetree.org/schemas/usb/generic-ehci.yaml

Hi Rob,
Isn't it pointing to the other schema ID which was not defined by me? Can I have your suggestion on changing the compatible name to other name to resolve this error? I ran dt_check in my machine on the latest version and I don't see any error there.

> 
> doc reference errors (make refcheckdocs):
> 
> See https://patchwork.kernel.org/project/devicetree/patch/20260201-atmel-usb-v1-2-d1a3e93003f1@gmail.com
> 
> 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.
> 

-- 
Best Regards,
Charan.