0001 # SPDX-License-Identifier: GPL-2.0
0002 %YAML 1.2
0003 ---
0004 $id: http://devicetree.org/schemas/dma/allwinner,sun50i-a64-dma.yaml#
0005 $schema: http://devicetree.org/meta-schemas/core.yaml#
0006
0007 title: Allwinner A64 DMA Controller Device Tree Bindings
0008
0009 maintainers:
0010 - Chen-Yu Tsai <wens@csie.org>
0011 - Maxime Ripard <mripard@kernel.org>
0012
0013 allOf:
0014 - $ref: "dma-controller.yaml#"
0015
0016 properties:
0017 "#dma-cells":
0018 const: 1
0019 description: The cell is the request line number.
0020
0021 compatible:
0022 oneOf:
0023 - enum:
0024 - allwinner,sun20i-d1-dma
0025 - allwinner,sun50i-a64-dma
0026 - allwinner,sun50i-a100-dma
0027 - allwinner,sun50i-h6-dma
0028 - items:
0029 - const: allwinner,sun8i-r40-dma
0030 - const: allwinner,sun50i-a64-dma
0031
0032 reg:
0033 maxItems: 1
0034
0035 interrupts:
0036 maxItems: 1
0037
0038 clocks:
0039 minItems: 1
0040 maxItems: 2
0041
0042 clock-names:
0043 items:
0044 - const: bus
0045 - const: mbus
0046
0047 resets:
0048 maxItems: 1
0049
0050 required:
0051 - "#dma-cells"
0052 - compatible
0053 - reg
0054 - interrupts
0055 - clocks
0056 - resets
0057 - dma-channels
0058
0059 if:
0060 properties:
0061 compatible:
0062 enum:
0063 - allwinner,sun20i-d1-dma
0064 - allwinner,sun50i-a100-dma
0065 - allwinner,sun50i-h6-dma
0066
0067 then:
0068 properties:
0069 clocks:
0070 minItems: 2
0071
0072 required:
0073 - clock-names
0074
0075 else:
0076 properties:
0077 clocks:
0078 maxItems: 1
0079
0080 unevaluatedProperties: false
0081
0082 examples:
0083 - |
0084 dma: dma-controller@1c02000 {
0085 compatible = "allwinner,sun50i-a64-dma";
0086 reg = <0x01c02000 0x1000>;
0087 interrupts = <0 50 4>;
0088 clocks = <&ccu 30>;
0089 dma-channels = <8>;
0090 dma-requests = <27>;
0091 resets = <&ccu 7>;
0092 #dma-cells = <1>;
0093 };
0094
0095 ...
