tjh.dev
Linux kernel mirror (for testing)
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linux
1# SPDX-License-Identifier: (GPL-2.0+ OR BSD-2-Clause)
2%YAML 1.2
3---
4$id: http://devicetree.org/schemas/sound/allwinner,sun4i-a10-i2s.yaml#
5$schema: http://devicetree.org/meta-schemas/core.yaml#
6
7title: Allwinner A10 I2S Controller
8
9maintainers:
10 - Chen-Yu Tsai <wens@csie.org>
11 - Maxime Ripard <mripard@kernel.org>
12
13properties:
14 "#sound-dai-cells":
15 const: 0
16
17 compatible:
18 oneOf:
19 - const: allwinner,sun4i-a10-i2s
20 - const: allwinner,sun6i-a31-i2s
21 - const: allwinner,sun8i-a83t-i2s
22 - const: allwinner,sun8i-h3-i2s
23 - items:
24 - const: allwinner,sun8i-r40-i2s
25 - const: allwinner,sun8i-h3-i2s
26 - items:
27 - const: allwinner,sun8i-v3-i2s
28 - const: allwinner,sun8i-h3-i2s
29 - const: allwinner,sun50i-a64-codec-i2s
30 - items:
31 - const: allwinner,sun50i-a64-i2s
32 - const: allwinner,sun8i-h3-i2s
33 - const: allwinner,sun50i-h6-i2s
34 - const: allwinner,sun50i-r329-i2s
35 - items:
36 - enum:
37 - allwinner,sun20i-d1-i2s
38 - allwinner,sun55i-a523-i2s
39 - const: allwinner,sun50i-r329-i2s
40
41 reg:
42 maxItems: 1
43
44 interrupts:
45 maxItems: 1
46
47 clocks:
48 items:
49 - description: Bus Clock
50 - description: Module Clock
51
52 clock-names:
53 items:
54 - const: apb
55 - const: mod
56
57 # Even though it only applies to subschemas under the conditionals,
58 # not listing them here will trigger a warning because of the
59 # additionalsProperties set to false.
60 dmas: true
61 dma-names: true
62 resets:
63 maxItems: 1
64
65allOf:
66 - $ref: dai-common.yaml#
67 - if:
68 properties:
69 compatible:
70 contains:
71 enum:
72 - allwinner,sun6i-a31-i2s
73 - allwinner,sun8i-a83t-i2s
74 - allwinner,sun8i-h3-i2s
75 - allwinner,sun50i-a64-codec-i2s
76 - allwinner,sun50i-h6-i2s
77 - allwinner,sun50i-r329-i2s
78
79 then:
80 required:
81 - resets
82
83 - if:
84 properties:
85 compatible:
86 contains:
87 enum:
88 - allwinner,sun8i-a83t-i2s
89 - allwinner,sun8i-h3-i2s
90
91 then:
92 properties:
93 dmas:
94 minItems: 1
95 items:
96 - description: RX DMA Channel
97 - description: TX DMA Channel
98 description:
99 Some controllers cannot receive but can only transmit
100 data. In such a case, the RX DMA channel is to be omitted.
101
102 dma-names:
103 oneOf:
104 - items:
105 - const: rx
106 - const: tx
107 - const: tx
108 description:
109 Some controllers cannot receive but can only transmit
110 data. In such a case, the RX name is to be omitted.
111
112 else:
113 properties:
114 dmas:
115 items:
116 - description: RX DMA Channel
117 - description: TX DMA Channel
118
119 dma-names:
120 items:
121 - const: rx
122 - const: tx
123
124required:
125 - "#sound-dai-cells"
126 - compatible
127 - reg
128 - interrupts
129 - clocks
130 - clock-names
131 - dmas
132 - dma-names
133
134unevaluatedProperties: false
135
136examples:
137 - |
138 i2s0: i2s@1c22400 {
139 #sound-dai-cells = <0>;
140 compatible = "allwinner,sun4i-a10-i2s";
141 reg = <0x01c22400 0x400>;
142 interrupts = <0 16 4>;
143 clocks = <&apb0_gates 3>, <&i2s0_clk>;
144 clock-names = "apb", "mod";
145 dmas = <&dma 0 3>, <&dma 0 3>;
146 dma-names = "rx", "tx";
147 };
148
149...