From: Inochi Amaoto <inochiama@gmail.com>
To: Eugeniy Paltsev <Eugeniy.Paltsev@synopsys.com>,
Vinod Koul <vkoul@kernel.org>, Rob Herring <robh@kernel.org>,
Krzysztof Kozlowski <krzk+dt@kernel.org>,
Conor Dooley <conor+dt@kernel.org>,
Paul Walmsley <pjw@kernel.org>,
Palmer Dabbelt <palmer@dabbelt.com>,
Albert Ou <aou@eecs.berkeley.edu>,
Alexandre Ghiti <alex@ghiti.fr>,
Chen Wang <unicorn_wang@outlook.com>,
Inochi Amaoto <inochiama@gmail.com>,
Alexander Sverdlin <alexander.sverdlin@gmail.com>,
Longbin Li <looong.bin@gmail.com>, Yixun Lan <dlan@gentoo.org>,
Ze Huang <huangze@whut.edu.cn>
Cc: "Anton D . Stavinskii" <stavinsky@gmail.com>,
dmaengine@vger.kernel.org, devicetree@vger.kernel.org,
linux-kernel@vger.kernel.org, linux-riscv@lists.infradead.org,
sophgo@lists.linux.dev
Subject: [PATCH 0/3] riscv: sophgo: allow DMA multiplexer set channel number for DMA controller
Date: Fri, 12 Dec 2025 10:05:00 +0800 [thread overview]
Message-ID: <20251212020504.915616-1-inochiama@gmail.com> (raw)
As the DMA controller on Sophgo CV1800 series SoC only has 8 channels,
the SoC provides a dma multiplexer to reuse the DMA channel. However,
the dma multiplexer also controlls the DMA interrupt multiplexer, which
means that the dma multiplexer needs to know the channel number.
Inochi Amaoto (3):
dt-bindings: dma: snps,dw-axi-dmac: Add CV1800B compatible
dmaengine: dw-axi-dmac: Add support for CV1800B DMA
riscv: dts: sophgo: cv180x: Allow the DMA multiplexer to set channel
number for DMA controller
.../bindings/dma/snps,dw-axi-dmac.yaml | 1 +
arch/riscv/boot/dts/sophgo/cv180x.dtsi | 2 +-
.../dma/dw-axi-dmac/dw-axi-dmac-platform.c | 23 ++++++++++++++++---
drivers/dma/dw-axi-dmac/dw-axi-dmac.h | 1 +
4 files changed, 23 insertions(+), 4 deletions(-)
--
2.52.0
next reply other threads:[~2025-12-12 2:06 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-12-12 2:05 Inochi Amaoto [this message]
2025-12-12 2:05 ` [PATCH 1/3] dt-bindings: dma: snps,dw-axi-dmac: Add CV1800B compatible Inochi Amaoto
2025-12-12 18:48 ` Anton Stavinsky
2025-12-13 0:53 ` Chen Wang
2025-12-16 18:05 ` Anton D. Stavinskii
2025-12-12 2:05 ` [PATCH 2/3] dmaengine: dw-axi-dmac: Add support for CV1800B DMA Inochi Amaoto
2025-12-13 7:55 ` Samuel Holland
2025-12-13 10:26 ` Inochi Amaoto
2025-12-12 2:05 ` [PATCH 3/3] riscv: dts: sophgo: cv180x: Allow the DMA multiplexer to set channel number for DMA controller Inochi Amaoto
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