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torvalds
GitHub Repository: torvalds/linux
 Path: blob/master/Documentation/devicetree/bindings/dma/fsl,imx-dma.yaml
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# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause

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%YAML 1.2

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---

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$id: http://devicetree.org/schemas/dma/fsl,imx-dma.yaml#

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

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title: Freescale Direct Memory Access (DMA) Controller for i.MX

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maintainers:

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  - Animesh Agarwal <animeshagarwal28@gmail.com>

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allOf:

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  - $ref: dma-controller.yaml#

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properties:

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  compatible:

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    enum:

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      - fsl,imx1-dma

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      - fsl,imx21-dma

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      - fsl,imx27-dma

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  reg:

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    maxItems: 1

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  interrupts:

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    items:

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      - description: DMA complete interrupt

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      - description: DMA Error interrupt

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    minItems: 1

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  clocks:

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    maxItems: 2

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  clock-names:

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    items:

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      - const: ipg

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      - const: ahb

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  "#dma-cells":

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    const: 1

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  dma-channels:

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    const: 16

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  dma-requests:

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    description: Number of DMA requests supported.

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required:

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  - compatible

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  - reg

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  - interrupts

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  - "#dma-cells"

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  - clocks

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  - clock-names

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additionalProperties: false

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examples:

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  - |

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    #include <dt-bindings/clock/imx27-clock.h>

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    dma-controller@10001000 {

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      compatible = "fsl,imx27-dma";

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      reg = <0x10001000 0x1000>;

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      interrupts = <32 33>;

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      #dma-cells = <1>;

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      dma-channels = <16>;

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      clocks = <&clks IMX27_CLK_DMA_IPG_GATE>, <&clks IMX27_CLK_DMA_AHB_GATE>;

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      clock-names = "ipg", "ahb";

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    };

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