Documentation/devicetree/bindings/dma/allwinner,sun6i-a31-dma.yaml

   1 # SPDX-License-Identifier: GPL-2.0
   2 %YAML 1.2
   3 ---
   4 $id: http://devicetree.org/schemas/dma/allwinner,sun6i-a31-dma.yaml#
   5 $schema: http://devicetree.org/meta-schemas/core.yaml#
   6
   7 title: Allwinner A31 DMA Controller Device Tree Bindings
   8
   9 maintainers:
  10   - Chen-Yu Tsai <wens@csie.org>
  11   - Maxime Ripard <mripard@kernel.org>
  12
  13 allOf:
  14   - $ref: "dma-controller.yaml#"
  15
  16 properties:
  17   "#dma-cells":
  18     const: 1
  19     description: The cell is the request line number.
  20
  21   compatible:
  22     oneOf:
  23       - const: allwinner,sun6i-a31-dma
  24       - const: allwinner,sun8i-a23-dma
  25       - const: allwinner,sun8i-a83t-dma
  26       - const: allwinner,sun8i-h3-dma
  27       - const: allwinner,sun8i-v3s-dma
  28
  29   reg:
  30     maxItems: 1
  31
  32   interrupts:
  33     maxItems: 1
  34
  35   clocks:
  36     maxItems: 1
  37
  38   resets:
  39     maxItems: 1
  40
  41 required:
  42   - "#dma-cells"
  43   - compatible
  44   - reg
  45   - interrupts
  46   - clocks
  47   - resets
  48
  49 additionalProperties: false
  50
  51 examples:
  52   - |
  53     dma: dma-controller@1c02000 {
  54         compatible = "allwinner,sun6i-a31-dma";
  55         reg = <0x01c02000 0x1000>;
  56         interrupts = <0 50 4>;
  57         clocks = <&ahb1_gates 6>;
  58         resets = <&ahb1_rst 6>;
  59         #dma-cells = <1>;
  60     };
  61
  62 ...