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freebsd
GitHub Repository: freebsd/freebsd-src
 Path: blob/main/sys/contrib/device-tree/Bindings/dma/allwinner,sun4i-a10-dma.yaml
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# SPDX-License-Identifier: GPL-2.0

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%YAML 1.2

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---

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$id: http://devicetree.org/schemas/dma/allwinner,sun4i-a10-dma.yaml#

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$schema: http://devicetree.org/meta-schemas/core.yaml#

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title: Allwinner A10 DMA Controller

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maintainers:

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  - Chen-Yu Tsai <wens@csie.org>

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  - Maxime Ripard <mripard@kernel.org>

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allOf:

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  - $ref: dma-controller.yaml#

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properties:

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  "#dma-cells":

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    const: 2

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    description:

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      The first cell is either 0 or 1, the former to use the normal

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      DMA, 1 for dedicated DMA. The second cell is the request line

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      number.

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  compatible:

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    const: allwinner,sun4i-a10-dma

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  reg:

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    maxItems: 1

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  interrupts:

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    maxItems: 1

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  clocks:

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    maxItems: 1

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required:

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  - "#dma-cells"

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  - compatible

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  - reg

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  - interrupts

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  - clocks

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additionalProperties: false

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examples:

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  - |

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    dma: dma-controller@1c02000 {

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        compatible = "allwinner,sun4i-a10-dma";

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        reg = <0x01c02000 0x1000>;

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        interrupts = <27>;

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        clocks = <&ahb_gates 6>;

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        #dma-cells = <2>;

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    };

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...

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