On 03-02-2026 23:38, Rob Herring wrote:

On Mon, Feb 02, 2026 at 04:32:54PM +0530, Charan Pedumuru wrote:

quoted

On 01-02-2026 18:07, Rob Herring (Arm) wrote:

quoted

On Sun, 01 Feb 2026 11:34:21 +0000, Charan Pedumuru wrote:

quoted

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 <redacted>
---
 .../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@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? 

You can't have the same compatible defined in 2 places.

Okay.

quoted

Can I have your suggestion on changing the compatible name to other 
name to resolve this error? 

Why are you converting this? It's already covered by generic-ehci.yaml. 
Though I seem to recall there were some warnings for Atmel.

Yes, in that case I will drop this patch in the next revision.

quoted

I ran dt_check in my machine on the 
latest version and I don't see any error there.

Please read the last paragraph below for why.

Okay, I understood now.

quoted

quoted

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.

^^^^^^^

Rob

-- 
Best Regards,
Charan.