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torvalds
GitHub Repository: torvalds/linux
 Path: blob/master/Documentation/devicetree/bindings/dma/fsl,mxs-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,mxs-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 from i.MX23/i.MX28

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maintainers:

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  - Marek Vasut <marex@denx.de>

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allOf:

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  - $ref: dma-controller.yaml#

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  - if:

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      properties:

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        compatible:

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          contains:

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            const: fsl,imx8qxp-dma-apbh

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    then:

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      required:

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        - power-domains

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    else:

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      properties:

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        power-domains: false

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  - if:

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      properties:

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        compatible:

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          contains:

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            const: fsl,imx23-dma-apbx

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    then:

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      properties:

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        interrupt-names:

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          items:

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            - const: audio-adc

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            - const: audio-dac

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            - const: spdif-tx

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            - const: i2c

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            - const: saif0

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            - const: empty0

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            - const: auart0-rx

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            - const: auart0-tx

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            - const: auart1-rx

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            - const: auart1-tx

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            - const: saif1

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            - const: empty1

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            - const: empty2

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            - const: empty3

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            - const: empty4

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            - const: empty5

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    else:

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      properties:

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        interrupt-names: false

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properties:

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  compatible:

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    oneOf:

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      - items:

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          - enum:

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              - fsl,imx6q-dma-apbh

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              - fsl,imx6sx-dma-apbh

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              - fsl,imx7d-dma-apbh

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              - fsl,imx8dxl-dma-apbh

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              - fsl,imx8mm-dma-apbh

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              - fsl,imx8mn-dma-apbh

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              - fsl,imx8mp-dma-apbh

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              - fsl,imx8mq-dma-apbh

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              - fsl,imx8qm-dma-apbh

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              - fsl,imx8qxp-dma-apbh

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          - const: fsl,imx28-dma-apbh

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      - enum:

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          - fsl,imx23-dma-apbh

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          - fsl,imx23-dma-apbx

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          - fsl,imx28-dma-apbh

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          - fsl,imx28-dma-apbx

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  reg:

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    maxItems: 1

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  clocks:

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    maxItems: 1

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  interrupts:

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    minItems: 4

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    maxItems: 16

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  interrupt-names:

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    minItems: 4

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    maxItems: 16

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  "#dma-cells":

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    const: 1

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  dma-channels:

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    enum: [4, 8, 16]

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  power-domains:

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    maxItems: 1

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required:

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  - compatible

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  - reg

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  - "#dma-cells"

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  - dma-channels

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  - interrupts

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additionalProperties: false

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examples:

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  - |

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    interrupt-parent = <&irqc>;

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    dma-controller@80004000 {

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      compatible = "fsl,imx28-dma-apbh";

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      reg = <0x80004000 0x2000>;

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      interrupts = <82 83 84 85

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                    88 88 88 88

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                    88 88 88 88

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                    87 86 0 0>;

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      #dma-cells = <1>;

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      dma-channels = <16>;

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    };

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    dma-controller@80024000 {

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      compatible = "fsl,imx28-dma-apbx";

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      reg = <0x80024000 0x2000>;

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      interrupts = <78 79 66 0

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                    80 81 68 69

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                    70 71 72 73

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                    74 75 76 77>;

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      #dma-cells = <1>;

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      dma-channels = <16>;

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    };

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...

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