Re: [PATCH v3 2/5] dt-bindings: display: renesas,rzg2l-du: Add RZ/T2H and RZ/N2H support

From: Rob Herring (Arm)

Date: Thu May 14 2026 - 11:29:56 EST



On Tue, 12 May 2026 15:41:01 +0100, Prabhakar wrote:
> From: Lad Prabhakar <prabhakar.mahadev-lad.rj@xxxxxxxxxxxxxx>
>
> Document the Display Unit (DU) support for the RZ/T2H and RZ/N2H SoCs.
>
> The DU block on RZ/T2H is functionally equivalent to the RZ/G2UL DU and
> supports the DPI interface, but includes SoC-specific register differences
> and has no reset control. Add a dedicated compatible string to represent
> this variant and update the allOf constraints accordingly.
>
> As the DU implementation on RZ/N2H matches RZ/T2H, describe it using an
> RZ/N2H specific compatible string with the RZ/T2H compatible as fallback.
>
> Signed-off-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@xxxxxxxxxxxxxx>
> ---
> v2->v3:
> - No change
>
> v1->v2:
> - Dropped the "port" property in favor of "ports" with a single port@0
> child, to align with the existing RZ/G2L bindings and simplify the
> device tree structure.
> - Updated the commit message to reflect the change from "port" to "ports".
> - Dropped RB tag from Rob due to above changes.
> ---
> .../bindings/display/renesas,rzg2l-du.yaml | 20 +++++++++++++++++--
> 1 file changed, 18 insertions(+), 2 deletions(-)
>

Reviewed-by: Rob Herring (Arm) <robh@xxxxxxxxxx>