From: Krzysztof Kozlowski <krzk@kernel.org>
To: Inochi Amaoto <inochiama@outlook.com>,
Vinod Koul <vkoul@kernel.org>, Rob Herring <robh@kernel.org>,
Krzysztof Kozlowski <krzk+dt@kernel.org>,
Conor Dooley <conor+dt@kernel.org>,
Chen Wang <unicorn_wang@outlook.com>,
Paul Walmsley <paul.walmsley@sifive.com>,
Palmer Dabbelt <palmer@dabbelt.com>,
Albert Ou <aou@eecs.berkeley.edu>
Cc: dmaengine@vger.kernel.org, devicetree@vger.kernel.org,
linux-kernel@vger.kernel.org, linux-riscv@lists.infradead.org
Subject: Re: [PATCH v9 1/3] dt-bindings: dmaengine: Add dma multiplexer for CV18XX/SG200X series SoC
Date: Mon, 5 Aug 2024 19:32:17 +0200 [thread overview]
Message-ID: <e0f7ee39-69e4-4a03-9908-96e383586800@kernel.org> (raw)
In-Reply-To: <IA1PR20MB495360B076BE4DA4E66B48BABBB32@IA1PR20MB4953.namprd20.prod.outlook.com>
On 02/08/2024 10:32, Inochi Amaoto wrote:
> The DMA IP of Sophgo CV18XX/SG200X is based on a DW AXI CORE, with
> an additional channel remap register located in the top system control
> area. The DMA channel is exclusive to each core.
>
> In addition, the DMA multiplexer is a subdevice of system controller,
> so this binding only contains necessary properties for the multiplexer
> itself.
>
> Add the dmamux binding for CV18XX/SG200X series SoC.
>
> Signed-off-by: Inochi Amaoto <inochiama@outlook.com>
> ---
> .../bindings/dma/sophgo,cv1800-dmamux.yaml | 51 +++++++++++++++++++
> 1 file changed, 51 insertions(+)
> create mode 100644 Documentation/devicetree/bindings/dma/sophgo,cv1800-dmamux.yaml
Filename should match compatible.
>
> diff --git a/Documentation/devicetree/bindings/dma/sophgo,cv1800-dmamux.yaml b/Documentation/devicetree/bindings/dma/sophgo,cv1800-dmamux.yaml
> new file mode 100644
> index 000000000000..11a098ed138a
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/dma/sophgo,cv1800-dmamux.yaml
> @@ -0,0 +1,51 @@
> +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
> +%YAML 1.2
> +---
> +$id: http://devicetree.org/schemas/dma/sophgo,cv1800-dmamux.yaml#
> +$schema: http://devicetree.org/meta-schemas/core.yaml#
> +
> +title: Sophgo CV1800/SG200 Series DMA multiplexer
> +
> +maintainers:
> + - Inochi Amaoto <inochiama@outlook.com>
> +
> +description: |
Do not need '|' unless you need to preserve formatting.
> + The DMA multiplexer of CV1800 is a subdevice of the system
> + controller. It support mapping 8 channels, but each channel
> + can be mapped only once.
> +
Best regards,
Krzysztof
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next prev parent reply other threads:[~2024-08-05 17:32 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-08-02 8:31 [PATCH v9 0/3] riscv: sophgo: add dmamux support for Sophgo CV1800/SG2000 SoCs Inochi Amaoto
2024-08-02 8:32 ` [PATCH v9 1/3] dt-bindings: dmaengine: Add dma multiplexer for CV18XX/SG200X series SoC Inochi Amaoto
2024-08-05 17:32 ` Krzysztof Kozlowski [this message]
2024-08-11 5:15 ` Inochi Amaoto
2024-08-02 8:32 ` [PATCH v9 2/3] soc/sophgo: add top sysctrl layout file for CV18XX/SG200X Inochi Amaoto
2024-08-02 8:32 ` [PATCH v9 3/3] dmaengine: add driver for Sophgo CV18XX/SG200X dmamux Inochi Amaoto
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