tjh.dev
Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
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linux
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 Device Tree Bindings
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 - const: allwinner,sun50i-a64-dma
24 - const: allwinner,sun50i-a100-dma
25 - const: allwinner,sun50i-h6-dma
26 - items:
27 - const: allwinner,sun8i-r40-dma
28 - const: allwinner,sun50i-a64-dma
29
30 reg:
31 maxItems: 1
32
33 interrupts:
34 maxItems: 1
35
36 clocks:
37 minItems: 1
38 maxItems: 2
39
40 clock-names:
41 items:
42 - const: bus
43 - const: mbus
44
45 resets:
46 maxItems: 1
47
48required:
49 - "#dma-cells"
50 - compatible
51 - reg
52 - interrupts
53 - clocks
54 - resets
55 - dma-channels
56
57if:
58 properties:
59 compatible:
60 enum:
61 - allwinner,sun50i-a100-dma
62 - allwinner,sun50i-h6-dma
63
64then:
65 properties:
66 clocks:
67 maxItems: 2
68
69 required:
70 - clock-names
71
72else:
73 properties:
74 clocks:
75 maxItems: 1
76
77unevaluatedProperties: false
78
79examples:
80 - |
81 dma: dma-controller@1c02000 {
82 compatible = "allwinner,sun50i-a64-dma";
83 reg = <0x01c02000 0x1000>;
84 interrupts = <0 50 4>;
85 clocks = <&ccu 30>;
86 dma-channels = <8>;
87 dma-requests = <27>;
88 resets = <&ccu 7>;
89 #dma-cells = <1>;
90 };
91
92...