[PATCH v3 02/16] dt-bindings: remoteproc: k3-dsp: Allow a second sub-mailbox

Krzysztof Kozlowski krzk at kernel.org
Mon Oct 26 00:49:31 PDT 2026


On Fri, Oct 23, 2026 at 08:39:27AM +0200, Tomeu Vizoso wrote:
> Allow specifying a second sub-mailbox that could be used by the firmware
> in addition to the first one, which is taken by remoteproc.
> 
> This is required by firmware that doesn't use rpmsg for their
> communication with the Linux kernel.
> 
> Assisted-by: LLM

Drop

> Signed-off-by: Tomeu Vizoso <tomeu at tomeuvizoso.net>

DCO mismatch.

> 
> ---
> 
> v3:
> - Initial version
> ---
>  .../devicetree/bindings/remoteproc/ti,k3-dsp-rproc.yaml        | 10 ++++++----
>  1 file changed, 6 insertions(+), 4 deletions(-)
> 
> diff --git a/Documentation/devicetree/bindings/remoteproc/ti,k3-dsp-rproc.yaml b/Documentation/devicetree/bindings/remoteproc/ti,k3-dsp-rproc.yaml
> index 278b88b7f906..d6319c8e96f8 100644
> --- a/Documentation/devicetree/bindings/remoteproc/ti,k3-dsp-rproc.yaml
> +++ b/Documentation/devicetree/bindings/remoteproc/ti,k3-dsp-rproc.yaml
> @@ -51,10 +51,12 @@ properties:
>  
>    mboxes:
>      description: |
> -      OMAP Mailbox specifier denoting the sub-mailbox, to be used for
> -      communication with the remote processor. This property should match
> -      with the sub-mailbox node used in the firmware image.
> -    maxItems: 1
> +      OMAP Mailbox specifiers denoting the sub-mailboxes allotted to
> +      communication with the remote processor. The first is the one the
> +      remoteproc core uses and should match the sub-mailbox node used in the
> +      firmware image. The second is optional.

Instead list the items with description and minItems: 1. Don't repeat
constraints in free form text.

> +    minItems: 1

Best regards,
Krzysztof




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