[PATCH v7 1/4] dt-bindings: remoteproc: imx_rproc: Add "rpmsg" subnode support

[Rob Herring (Arm)]

On Tue, 10 Feb 2026 11:08:11 -0600, Shenwei Wang wrote:
> Remote processors may announce multiple GPIO controllers over an RPMSG
> channel. These GPIO controllers may require corresponding device tree
> nodes, especially when acting as providers, to supply phandles for their
> consumers.
> 
> Define an RPMSG node to work as a container for a group of RPMSG channels
> under the imx_rproc node. Each subnode within "rpmsg" represents an
> individual RPMSG channel. The name of each subnode corresponds to the
> channel name as defined by the remote processor.
> 
> All remote devices associated with a given channel are defined as child
> nodes under the corresponding channel node.
> 
> Signed-off-by: Shenwei Wang <shenwei.wang at nxp.com>
> ---
>  .../devicetree/bindings/gpio/gpio-rpmsg.yaml  | 55 +++++++++++++++++++
>  .../bindings/remoteproc/fsl,imx-rproc.yaml    | 53 ++++++++++++++++++
>  2 files changed, 108 insertions(+)
>  create mode 100644 Documentation/devicetree/bindings/gpio/gpio-rpmsg.yaml
> 

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

yamllint warnings/errors:

dtschema/dtc warnings/errors:


doc reference errors (make refcheckdocs):
Warning: Documentation/devicetree/bindings/gpio/gpio-rpmsg.yaml references a file that doesn't exist: Documentation/driver-api/gpio/gpio-rpmsg.rst
Documentation/devicetree/bindings/gpio/gpio-rpmsg.yaml: Documentation/driver-api/gpio/gpio-rpmsg.rst

See https://patchwork.kernel.org/project/devicetree/patch/20260210170814.406883-2-shenwei.wang@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.