linux-kernel - RE: [PATCH 0/6] Add DMA support for RZ/T2H and RZ/N2H

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Message-ID:
 <TYYPR01MB13955B628879F3F18D157EBFD85DBA@TYYPR01MB13955.jpnprd01.prod.outlook.com>
Date: Mon, 1 Dec 2025 11:54:37 +0000
From: Cosmin-Gabriel Tanislav <cosmin-gabriel.tanislav.xa@...esas.com>
To: Cosmin-Gabriel Tanislav <cosmin-gabriel.tanislav.xa@...esas.com>, Vinod
 Koul <vkoul@...nel.org>, Rob Herring <robh@...nel.org>, Krzysztof Kozlowski
	<krzk+dt@...nel.org>, Conor Dooley <conor+dt@...nel.org>, Geert Uytterhoeven
	<geert+renesas@...der.be>, magnus.damm <magnus.damm@...il.com>, Fabrizio
 Castro <fabrizio.castro.jz@...esas.com>, Prabhakar Mahadev Lad
	<prabhakar.mahadev-lad.rj@...renesas.com>, Johan Hovold <johan@...nel.org>,
	Biju Das <biju.das.jz@...renesas.com>
CC: "dmaengine@...r.kernel.org" <dmaengine@...r.kernel.org>,
	"devicetree@...r.kernel.org" <devicetree@...r.kernel.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	"linux-renesas-soc@...r.kernel.org" <linux-renesas-soc@...r.kernel.org>
Subject: RE: [PATCH 0/6] Add DMA support for RZ/T2H and RZ/N2H

Please ignore this series, I left some internal comments after the
separators. I will send V2.

> -----Original Message-----
> From: Cosmin Tanislav <cosmin-gabriel.tanislav.xa@...esas.com>
> Sent: Monday, December 1, 2025 1:49 PM
> To: Vinod Koul <vkoul@...nel.org>; Rob Herring <robh@...nel.org>; Krzysztof Kozlowski
> <krzk+dt@...nel.org>; Conor Dooley <conor+dt@...nel.org>; Geert Uytterhoeven
> <geert+renesas@...der.be>; magnus.damm <magnus.damm@...il.com>; Cosmin-Gabriel Tanislav <cosmin-
> gabriel.tanislav.xa@...esas.com>; Fabrizio Castro <fabrizio.castro.jz@...esas.com>; Prabhakar Mahadev
> Lad <prabhakar.mahadev-lad.rj@...renesas.com>; Johan Hovold <johan@...nel.org>; Biju Das
> <biju.das.jz@...renesas.com>
> Cc: dmaengine@...r.kernel.org; devicetree@...r.kernel.org; linux-kernel@...r.kernel.org; linux-
> renesas-soc@...r.kernel.org
> Subject: [PATCH 0/6] Add DMA support for RZ/T2H and RZ/N2H
>
> 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.
>
> This series depends on the ICU series [1].
>
> [1]:
> https://lore.kernel.org/lkml/20251201112
> 933.488801-1-cosmin-gabriel.tanislav.xa%40renesas.com%2F&data=05%7C02%7Ccosmin-
> gabriel.tanislav.xa%40renesas.com%7Caec47accb94f456209db08de30cfc1cc%7C53d82571da1947e49cb4625a166a4a2
> a%7C0%7C0%7C639001866033085716%7CUnknown%7CTWFpbGZsb3d8eyJFbXB0eU1hcGkiOnRydWUsIlYiOiIwLjAuMDAwMCIsIlA
> iOiJXaW4zMiIsIkFOIjoiTWFpbCIsIldUIjoyfQ%3D%3D%7C0%7C%7C%7C&sdata=zoN04o8jHJQ1O%2Be20h2F%2BDxeQ4LzPVoLD
> HvHQGOqH3A%3D&reserved=0
>
> Cosmin Tanislav (6):
>   dmaengine: sh: rz_dmac: make error interrupt optional
>   dmaengine: sh: rz_dmac: make register_dma_req() chip-specific
>   dt-bindings: dma: renesas,rz-dmac: document RZ/{T2H,N2H}
>   dmaengine: sh: rz_dmac: add RZ/{T2H,N2H} support
>   arm64: dts: renesas: r9a09g077: add DMAC support
>   arm64: dts: renesas: r9a09g087: add DMAC support
>
>  .../bindings/dma/renesas,rz-dmac.yaml         | 100 ++++++++++++++----
>  arch/arm64/boot/dts/renesas/r9a09g077.dtsi    |  90 ++++++++++++++++
>  arch/arm64/boot/dts/renesas/r9a09g087.dtsi    |  90 ++++++++++++++++
>  drivers/dma/sh/rz-dmac.c                      |  94 +++++++++-------
>  4 files changed, 317 insertions(+), 57 deletions(-)
>
> --
> 2.52.0