Documentation/devicetree/bindings/dma/allwinner,sun4i-a10-dma.yaml

   1 # SPDX-License-Identifier: GPL-2.0
   2 %YAML 1.2
   3 ---
   4 $id: http://devicetree.org/schemas/dma/allwinner,sun4i-a10-dma.yaml#
   5 $schema: http://devicetree.org/meta-schemas/core.yaml#
   6
   7 title: Allwinner A10 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: 2
  19     description:
  20       The first cell is either 0 or 1, the former to use the normal
  21       DMA, 1 for dedicated DMA. The second cell is the request line
  22       number.
  23
  24   compatible:
  25     const: allwinner,sun4i-a10-dma
  26
  27   reg:
  28     maxItems: 1
  29
  30   interrupts:
  31     maxItems: 1
  32
  33   clocks:
  34     maxItems: 1
  35
  36 required:
  37   - "#dma-cells"
  38   - compatible
  39   - reg
  40   - interrupts
  41   - clocks
  42
  43 additionalProperties: false
  44
  45 examples:
  46   - |
  47     dma: dma-controller@1c02000 {
  48         compatible = "allwinner,sun4i-a10-dma";
  49         reg = <0x01c02000 0x1000>;
  50         interrupts = <27>;
  51         clocks = <&ahb_gates 6>;
  52         #dma-cells = <2>;
  53     };
  54
  55 ...