linux-kernel - Re: [PATCH v2 3/3] riscv: dts: sophgo: cv180x: Allow the DMA multiplexer to set channel number for DMA controller

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Message-ID: <aWpcfqHDFaq8Lsv5@lizhi-Precision-Tower-5810>
Date: Fri, 16 Jan 2026 10:42:54 -0500
From: Frank Li <Frank.li@....com>
To: Inochi Amaoto <inochiama@...il.com>
Cc: Eugeniy Paltsev <Eugeniy.Paltsev@...opsys.com>,
	Vinod Koul <vkoul@...nel.org>, Rob Herring <robh@...nel.org>,
	Krzysztof Kozlowski <krzk+dt@...nel.org>,
	Conor Dooley <conor+dt@...nel.org>, Paul Walmsley <pjw@...nel.org>,
	Palmer Dabbelt <palmer@...belt.com>,
	Albert Ou <aou@...s.berkeley.edu>, Alexandre Ghiti <alex@...ti.fr>,
	Chen Wang <unicorn_wang@...look.com>,
	Alexander Sverdlin <alexander.sverdlin@...il.com>,
	Longbin Li <looong.bin@...il.com>, Ze Huang <huangze@...t.edu.cn>,
	"Anton D . Stavinskii" <stavinsky@...il.com>,
	dmaengine@...r.kernel.org, devicetree@...r.kernel.org,
	linux-kernel@...r.kernel.org, linux-riscv@...ts.infradead.org,
	sophgo@...ts.linux.dev, Yixun Lan <dlan@...too.org>
Subject: Re: [PATCH v2 3/3] riscv: dts: sophgo: cv180x: Allow the DMA
 multiplexer to set channel number for DMA controller

On Mon, Dec 15, 2025 at 06:46:00AM +0800, Inochi Amaoto wrote:
> Change the DMA controller compatible to the sophgo,cv1800b-axi-dma,
> which supports setting DMA channel number in DMA phandle args.


Does it need update DMA comsumer?

Frank
>
> Fixes: 514951a81a5e ("riscv: dts: sophgo: cv18xx: add DMA controller")
> Reported-by: Anton D. Stavinskii <stavinsky@...il.com>
> Closes: https://github.com/sophgo/linux/issues/9
> Signed-off-by: Inochi Amaoto <inochiama@...il.com>
> ---
>  arch/riscv/boot/dts/sophgo/cv180x.dtsi | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/arch/riscv/boot/dts/sophgo/cv180x.dtsi b/arch/riscv/boot/dts/sophgo/cv180x.dtsi
> index 1b2b1969a648..e1b515b46466 100644
> --- a/arch/riscv/boot/dts/sophgo/cv180x.dtsi
> +++ b/arch/riscv/boot/dts/sophgo/cv180x.dtsi
> @@ -417,7 +417,7 @@ sdhci1: mmc@...0000 {
>  		};
>
>  		dmac: dma-controller@...0000 {
> -			compatible = "snps,axi-dma-1.01a";
> +			compatible = "sophgo,cv1800b-axi-dma";
>  			reg = <0x04330000 0x1000>;
>  			interrupts = <SOC_PERIPHERAL_IRQ(13) IRQ_TYPE_LEVEL_HIGH>;
>  			clocks = <&clk CLK_SDMA_AXI>, <&clk CLK_SDMA_AXI>;
> --
> 2.52.0
>