linux-kernel - Re: [PATCH v14 2/2] dmaengine: add driver for Sophgo CV18XX/SG200X dmamux

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Message-ID: <efce5e1909ead19a46c87fa36652be70e9233161.camel@gmail.com>
Date: Sun, 15 Jun 2025 17:39:06 +0200
From: Alexander Sverdlin <alexander.sverdlin@...il.com>
To: Inochi Amaoto <inochiama@...il.com>, Vinod Koul <vkoul@...nel.org>, Rob
 Herring <robh@...nel.org>, Krzysztof Kozlowski <krzk+dt@...nel.org>, Conor
 Dooley	 <conor+dt@...nel.org>, Chen Wang <unicorn_wang@...look.com>, Paul
 Walmsley	 <paul.walmsley@...ive.com>, Palmer Dabbelt <palmer@...belt.com>,
 Albert Ou	 <aou@...s.berkeley.edu>, Alexandre Ghiti <alex@...ti.fr>
Cc: dmaengine@...r.kernel.org, devicetree@...r.kernel.org, 
	sophgo@...ts.linux.dev, linux-kernel@...r.kernel.org, 
	linux-riscv@...ts.infradead.org, Yixun Lan <dlan@...too.org>, Longbin Li
	 <looong.bin@...il.com>
Subject: Re: [PATCH v14 2/2] dmaengine: add driver for Sophgo CV18XX/SG200X
 dmamux

Thanks for the patch, Inochi!

On Wed, 2025-06-11 at 16:09 +0800, Inochi Amaoto wrote:
> Sophgo CV18XX/SG200X use DW AXI CORE with a multiplexer for remapping
> its request lines. The multiplexer supports at most 8 request lines.
> 
> Add driver for Sophgo CV18XX/SG200X DMA multiplexer.
> 
> Signed-off-by: Inochi Amaoto <inochiama@...il.com>

Successfully tested with USB series in host mode on Milk-V Duo Module 01 EVB:

Tested-by: Alexander Sverdlin <alexander.sverdlin@...il.com>

> ---
>  drivers/dma/Kconfig          |   9 ++
>  drivers/dma/Makefile         |   1 +
>  drivers/dma/cv1800b-dmamux.c | 259 +++++++++++++++++++++++++++++++++++
>  3 files changed, 269 insertions(+)
>  create mode 100644 drivers/dma/cv1800b-dmamux.c

-- 
Alexander Sverdlin.