linux-kernel - Re: [PATCH v2 1/3] dt-bindings: usb: introduce fsl,imx-dwc3

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Message-Id: <177020859226.1501535.7850161479548058687.robh@kernel.org>
Date: Wed, 04 Feb 2026 06:36:32 -0600
From: "Rob Herring (Arm)" <robh@...nel.org>
To: Xu Yang <xu.yang_2@....com>
Cc: devicetree@...r.kernel.org, imx@...ts.linux.dev, 
 linux-arm-kernel@...ts.infradead.org, 
 Pengutronix Kernel Team <kernel@...gutronix.de>, Li Jun <jun.li@....com>, 
 Thinh Nguyen <Thinh.Nguyen@...opsys.com>, Shawn Guo <shawnguo@...nel.org>, 
 Krzysztof Kozlowski <krzk+dt@...nel.org>, linux-kernel@...r.kernel.org, 
 Frank Li <frank.li@....com>, 
 Greg Kroah-Hartman <gregkh@...uxfoundation.org>, 
 Sascha Hauer <s.hauer@...gutronix.de>, Fabio Estevam <festevam@...il.com>, 
 Conor Dooley <conor+dt@...nel.org>, linux-usb@...r.kernel.org
Subject: Re: [PATCH v2 1/3] dt-bindings: usb: introduce fsl,imx-dwc3


On Wed, 04 Feb 2026 19:06:16 +0800, Xu Yang wrote:
> The i.MX USB glue and DWC3 core are closely coupled. Describe the i.MX
> USB block in a single block will bring more benefits than a parent-
> child relation. The new binding is a copy of fsl,imx8mp-dwc3.yaml with
> the needed modifications.
> 
> Add the common compatible string "fsl,imx-dwc3" to indicate that the
> flattened module should be selected. This compatible is also used by
> "select" to inform the DeviceTree validator to apply this binding.
> 
> To avoid redefining all the platform-specific compatibles, "select" is
> used to tell the DeviceTree validator which binding to use solely on the
> generic compatible.
> 
> Mark fsl,imx8mp-dwc3 deprecated, to favor expressing future platforms
> using the new combined binding.
> 
> Signed-off-by: Xu Yang <xu.yang_2@....com>
> 
> ---
> Changes in v2:
>  - reorder compatible property
> ---
>  .../devicetree/bindings/usb/fsl,imx-dwc3.yaml      | 131 +++++++++++++++++++++
>  .../devicetree/bindings/usb/fsl,imx8mp-dwc3.yaml   |  13 ++
>  2 files changed, 144 insertions(+)
> 

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

yamllint warnings/errors:

dtschema/dtc warnings/errors:
Documentation/devicetree/bindings/usb/fsl,imx-dwc3.example.dtb: /example-0/usb@...00000: failed to match any schema with compatible: ['fsl,imx943-dwc3', 'fsl,imx-dwc3']
/builds/robherring/dt-review-ci/linux/Documentation/devicetree/bindings/usb/fsl,imx-dwc3.example.dtb: usb@...00000 (fsl,imx943-dwc3): compatible:0: 'fsl,imx943-dwc3' is not one of ['fsl,imx8mp-dwc3', 'fsl,imx94-dwc3', 'fsl,imx95-dwc3']
	from schema $id: http://devicetree.org/schemas/usb/fsl,imx-dwc3.yaml

doc reference errors (make refcheckdocs):

See https://patchwork.kernel.org/project/devicetree/patch/20260204-add-flatten-dts-based-dwc3-imx-driver-v2-1-d2c9b5a58c01@nxp.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.