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