Re: [PATCH v11 1/3] dt-bindings: phy: Add documentation for Airoha AN7581 USB PHY

[Rob Herring (Arm)]

On Fri, 24 Jul 2026 20:45:20 +0200, Christian Marangi wrote:
> Add documentation for Airoha AN7581 USB PHY that describe the USB PHY
> for the USB controller.
> 
> Airoha AN7581 SoC support a maximum of 2 USB port. The USB 2.0 mode is
> always supported. The USB 3.0 mode is optional and depends on the Serdes
> mode currently configured on the system for the relevant USB port.
> 
> To correctly calibrate, the USB 2.0 port require correct value in
> "airoha,usb2-monitor-clk-sel" property. Both the 2 USB 2.0 port permit
> selecting one of the 4 monitor clock for calibration (internal clock not
> exposed to the system) but each port have only one of the 4 actually
> connected in HW hence the correct value needs to be specified in DT
> based on board and the physical port. Normally it's monitor clock 1 for
> USB1 and monitor clock 2 for USB2.
> 
> To correctly setup the Serdes mode attached to the USB 3.0 mode, a phys
> property is required with the phandle pointing to the correct Serdes port
> provided by the SCU node. Providing the phys property is optional if USB
> 3.0 is not used.
> 
> Signed-off-by: Christian Marangi <ansuelsmth@xxxxxxxxx>
> Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@xxxxxxxxxxxxxxxx>
> ---
>  .../bindings/phy/airoha,an7581-usb-phy.yaml   | 62 +++++++++++++++++++
>  MAINTAINERS                                   |  6 ++
>  2 files changed, 68 insertions(+)
>  create mode 100644 Documentation/devicetree/bindings/phy/airoha,an7581-usb-phy.yaml
> 

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

yamllint warnings/errors:

dtschema/dtc warnings/errors:
Documentation/devicetree/bindings/phy/airoha,an7581-usb-phy.example.dts:18:18: fatal error: dt-bindings/soc/airoha,scu-ssr.h: No such file or directory
   18 |         #include <dt-bindings/soc/airoha,scu-ssr.h>
      |                  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
compilation terminated.
make[2]: *** [scripts/Makefile.dtbs:140: Documentation/devicetree/bindings/phy/airoha,an7581-usb-phy.example.dtb] Error 1
make[2]: *** Waiting for unfinished jobs....
make[1]: *** [/builds/robherring/dt-review-ci/linux/Makefile:1705: 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/20260724184523.193661-2-ansuelsmth@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.