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