Re: [PATCH v5 1/3] dt-bindings: remoteproc: imx_rproc: document memory-region-names to avoid hidden ABI

["Rob Herring (Arm)" <robh@kernel.org>]

On Thu, 15 Oct 2026 10:39:22 -0400, Frank.Li@oss.nxp.com wrote:
> From: Laurentiu Mihalcea <laurentiu.mihalcea@nxp.com>
> 
> Document the optional memory-region-names property.
> 
> The driver currently derives the memory region type from the referenced
> memory node name, creating a hidden DT ABI. Since memory node names are
> not constrained by the binding, incorrect names can silently pass DT
> validation, as seen in examples using "vdevbuffer" instead of
> "vdev0buffer" ([1] and [2]).
> 
> Add memory-region-names to explicitly identify the expected memory regions
> and avoid relying on memory node names as ABI.
> 
> Link: https://lore.kernel.org/imx/a3602ef8-2b77-4cc3-adef-2c4cba08a5d9@nabladev.com/ [1]
> Link: https://lore.kernel.org/imx/alexXTYQHUs76J7v@SMW015318/T/#mb9dc709ff3adc24d9db6d30c973f37b580f6f1f9 [2]
> Signed-off-by: Laurentiu Mihalcea <laurentiu.mihalcea@nxp.com>
> Signed-off-by: Frank Li <Frank.Li@nxp.com>
> ---
> Use optional property to keep back compatible with old platform.
> New platform should use memory-region-names.
> ---
>  .../devicetree/bindings/remoteproc/fsl,imx-rproc.yaml         | 11 +++++++++++
>  1 file changed, 11 insertions(+)
> 

Reviewed-by: Rob Herring (Arm) <robh@kernel.org>