linux-kernel - Re: [PATCH v2 3/6] dt-bindings: dma: renesas,rz-dmac: document RZ/{T2H,N2H}

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Message-ID: <176488346527.2191639.14421077722931377350.robh@kernel.org>
Date: Thu, 4 Dec 2025 15:24:25 -0600
From: "Rob Herring (Arm)" <robh@...nel.org>
To: Cosmin Tanislav <cosmin-gabriel.tanislav.xa@...esas.com>
Cc: devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
	Vinod Koul <vkoul@...nel.org>,
	Fabrizio Castro <fabrizio.castro.jz@...esas.com>,
	Lad Prabhakar <prabhakar.mahadev-lad.rj@...renesas.com>,
	dmaengine@...r.kernel.org, linux-renesas-soc@...r.kernel.org,
	Johan Hovold <johan@...nel.org>,
	Biju Das <biju.das.jz@...renesas.com>,
	Magnus Damm <magnus.damm@...il.com>,
	Conor Dooley <conor+dt@...nel.org>,
	Geert Uytterhoeven <geert+renesas@...der.be>,
	Krzysztof Kozlowski <krzk+dt@...nel.org>
Subject: Re: [PATCH v2 3/6] dt-bindings: dma: renesas,rz-dmac: document
 RZ/{T2H,N2H}


On Mon, 01 Dec 2025 14:49:08 +0200, Cosmin Tanislav wrote:
> The Renesas RZ/T2H (R9A09G077) and RZ/N2H (R9A09G087) SoCs have three
> DMAC instances. Compared to the previously supported RZ/V2H, these SoCs
> are missing the error interrupt line and the reset lines, and they use
> a different ICU IP.
> 
> Document them, and use RZ/T2H as a fallback for RZ/N2H as the DMACs are
> entirely compatible.
> 
> Signed-off-by: Cosmin Tanislav <cosmin-gabriel.tanislav.xa@...esas.com>
> ---
> 
> V2:
>  * remove notes
> 
>  .../bindings/dma/renesas,rz-dmac.yaml         | 100 ++++++++++++++----
>  1 file changed, 82 insertions(+), 18 deletions(-)
> 

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