linux-kernel - [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: <20251214224601.598358-4-inochiama@gmail.com>
Date: Mon, 15 Dec 2025 06:46:00 +0800
From: Inochi Amaoto <inochiama@...il.com>
To: 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>,
	Inochi Amaoto <inochiama@...il.com>,
	Alexander Sverdlin <alexander.sverdlin@...il.com>,
	Longbin Li <looong.bin@...il.com>,
	Ze Huang <huangze@...t.edu.cn>
Cc: "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: [PATCH v2 3/3] riscv: dts: sophgo: cv180x: Allow the DMA multiplexer to set channel number for DMA controller

Change the DMA controller compatible to the sophgo,cv1800b-axi-dma,
which supports setting DMA channel number in DMA phandle args.

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