Documentation/devicetree/bindings/dma/fsl,mxs-dma.yaml

   1 # SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
   2 %YAML 1.2
   3 ---
   4 $id: http://devicetree.org/schemas/dma/fsl,mxs-dma.yaml#
   5 $schema: http://devicetree.org/meta-schemas/core.yaml#
   6
   7 title: Freescale Direct Memory Access (DMA) Controller from i.MX23/i.MX28
   8
   9 maintainers:
  10   - Marek Vasut <marex@denx.de>
  11
  12 allOf:
  13   - $ref: dma-controller.yaml#
  14
  15 properties:
  16   compatible:
  17     oneOf:
  18       - items:
  19           - enum:
  20               - fsl,imx6q-dma-apbh
  21               - fsl,imx6sx-dma-apbh
  22               - fsl,imx7d-dma-apbh
  23           - const: fsl,imx28-dma-apbh
  24       - enum:
  25           - fsl,imx23-dma-apbh
  26           - fsl,imx23-dma-apbx
  27           - fsl,imx28-dma-apbh
  28           - fsl,imx28-dma-apbx
  29   reg:
  30     maxItems: 1
  31
  32   clocks:
  33     maxItems: 1
  34
  35   interrupts:
  36     minItems: 4
  37     maxItems: 16
  38
  39   "#dma-cells":
  40     const: 1
  41
  42   dma-channels:
  43     enum: [4, 8, 16]
  44
  45 required:
  46   - compatible
  47   - reg
  48   - "#dma-cells"
  49   - dma-channels
  50   - interrupts
  51
  52 additionalProperties: false
  53
  54 examples:
  55   - |
  56     interrupt-parent = <&irqc>;
  57
  58     dma-controller@80004000 {
  59       compatible = "fsl,imx28-dma-apbh";
  60       reg = <0x80004000 0x2000>;
  61       interrupts = <82 83 84 85
  62                     88 88 88 88
  63                     88 88 88 88
  64                     87 86 0 0>;
  65       #dma-cells = <1>;
  66       dma-channels = <16>;
  67     };
  68
  69     dma-controller@80024000 {
  70       compatible = "fsl,imx28-dma-apbx";
  71       reg = <0x80024000 0x2000>;
  72       interrupts = <78 79 66 0
  73                     80 81 68 69
  74                     70 71 72 73
  75                     74 75 76 77>;
  76       #dma-cells = <1>;
  77       dma-channels = <16>;
  78     };
  79
  80 ...