Re: [PATCH v2] dt-bindings: firmware: fsl,scu: Mark multi-channel MU layouts as deprecated

From: Rob Herring (Arm)

Date: Thu Jan 29 2026 - 13:20:01 EST



On Tue, 27 Jan 2026 07:06:00 +0800, Peng Fan (OSS) wrote:
> From: Peng Fan <peng.fan@xxxxxxx>
>
> The SCU MU driver has already supported the simple and efficient single-TX
> and single-RX channel layout since 2021. The older multi-channel MU
> configurations (tx0..tx3 and rx0..rx3) are less efficient in practice and
> not needed.
>
> Mark these legacy mbox-names and mboxes tuple layouts as deprecated in the
> binding schema. The driver continues to support them for backward
> compatibility in case firmware publishes the legacy properties.
>
> The example section is updated accordingly to demonstrate the recommended
> layout.
>
> Signed-off-by: Peng Fan <peng.fan@xxxxxxx>
> ---
> Changes in v2:
> - A minor grammer update in commit log
> - Link to v1: https://lore.kernel.org/r/20260126-scu-v1-1-b9d31da12860@xxxxxxx
> ---
> .../devicetree/bindings/firmware/fsl,scu.yaml | 20 +++++++++++---------
> 1 file changed, 11 insertions(+), 9 deletions(-)
>

Applied, thanks!