Re: [PATCH 1/5] dt-bindings: Add Bao IPC shared memory driver binding

Rob Herring (Arm)
2025-12-24T16:18:19Z

On Wed, 24 Dec 2025 13:52:13 +0000, joaopeixoto@osyx.tech wrote:
> From: João Peixoto <joaopeixoto@osyx.tech>
>
> This patch adds a Device Tree binding for the Bao IPC shared memory
> device, which provides a standardized description of the hardware
> interface used for inter-VM communication in Bao-based systems.
>
> The binding documents the following properties:
>
> - compatible: "bao,ipcshmem"
> - reg: Memory region for the shared memory device
> - id: Unique device identifier
> - read-channel: [offset, size] for reading from the shared memory
> - write-channel: [offset, size] for writing to the shared memory
> - interrupts: Interrupts used by the device
>
> This enables kernel drivers and userspace tools to correctly
> instantiate and configure Bao IPC shared memory devices based
> on the DT description, facilitating efficient communication
> between VMs.
>
> Signed-off-by: João Peixoto <joaopeixoto@osyx.tech>
> ---
> .../devicetree/bindings/bao/ipcshmem.yaml | 99 +++++++++++++++++++
> .../devicetree/bindings/vendor-prefixes.yaml | 2 +
> 2 files changed, 101 insertions(+)
> create mode 100644 Documentation/devicetree/bindings/bao/ipcshmem.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):

See https://patchwork.kernel.org/project/devicetree/patch/20251224135217.25350-2-joaopeixoto@osyx.tech

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.