allwinner,sun50i-a64-dma.yaml

  1# SPDX-License-Identifier: GPL-2.0
  2%YAML 1.2
  3---
  4$id: http://devicetree.org/schemas/dma/allwinner,sun50i-a64-dma.yaml#
  5$schema: http://devicetree.org/meta-schemas/core.yaml#
  6
  7title: Allwinner A64 DMA Controller
  8
  9maintainers:
 10  - Chen-Yu Tsai <wens@csie.org>
 11  - Maxime Ripard <mripard@kernel.org>
 12
 13allOf:
 14  - $ref: dma-controller.yaml#
 15
 16properties:
 17  "#dma-cells":
 18    const: 1
 19    description: The cell is the request line number.
 20
 21  compatible:
 22    oneOf:
 23      - enum:
 24          - allwinner,sun20i-d1-dma
 25          - allwinner,sun50i-a64-dma
 26          - allwinner,sun50i-a100-dma
 27          - allwinner,sun50i-h6-dma
 28      - items:
 29          - const: allwinner,sun8i-r40-dma
 30          - const: allwinner,sun50i-a64-dma
 31      - items:
 32          - enum:
 33              - allwinner,sun50i-h616-dma
 34              - allwinner,sun55i-a523-dma
 35              - allwinner,sun55i-a523-mcu-dma
 36          - const: allwinner,sun50i-a100-dma
 37
 38  reg:
 39    maxItems: 1
 40
 41  interrupts:
 42    maxItems: 1
 43
 44  clocks:
 45    minItems: 1
 46    maxItems: 2
 47
 48  clock-names:
 49    items:
 50      - const: bus
 51      - const: mbus
 52
 53  resets:
 54    maxItems: 1
 55
 56required:
 57  - "#dma-cells"
 58  - compatible
 59  - reg
 60  - interrupts
 61  - clocks
 62  - resets
 63  - dma-channels
 64
 65if:
 66  properties:
 67    compatible:
 68      contains:
 69        enum:
 70          - allwinner,sun20i-d1-dma
 71          - allwinner,sun50i-a100-dma
 72          - allwinner,sun50i-h6-dma
 73
 74then:
 75  properties:
 76    clocks:
 77      minItems: 2
 78
 79  required:
 80    - clock-names
 81
 82else:
 83  properties:
 84    clocks:
 85      maxItems: 1
 86
 87unevaluatedProperties: false
 88
 89examples:
 90  - |
 91    dma: dma-controller@1c02000 {
 92        compatible = "allwinner,sun50i-a64-dma";
 93        reg = <0x01c02000 0x1000>;
 94        interrupts = <0 50 4>;
 95        clocks = <&ccu 30>;
 96        dma-channels = <8>;
 97        dma-requests = <27>;
 98        resets = <&ccu 7>;
 99        #dma-cells = <1>;
100    };
101
102...