1 # SPDX-License-Identifier: GPL-2.0
2 %YAML 1.2
3 ---
4 $id: http://devicetree.org/schemas/sound/rockchip-spdif.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
6
7 title: Rockchip SPDIF transceiver
8
9 description:
10 The S/PDIF audio block is a stereo transceiver that allows the
11 processor to receive and transmit digital audio via a coaxial or
12 fibre cable.
13
14 maintainers:
15 - Heiko Stuebner <heiko@sntech.de>
16
17 properties:
18 compatible:
19 oneOf:
20 - const: rockchip,rk3066-spdif
21 - const: rockchip,rk3228-spdif
22 - const: rockchip,rk3328-spdif
23 - const: rockchip,rk3366-spdif
24 - const: rockchip,rk3368-spdif
25 - const: rockchip,rk3399-spdif
26 - const: rockchip,rk3568-spdif
27 - items:
28 - enum:
29 - rockchip,rk3128-spdif
30 - rockchip,rk3188-spdif
31 - rockchip,rk3288-spdif
32 - rockchip,rk3308-spdif
33 - const: rockchip,rk3066-spdif
34
35 reg:
36 maxItems: 1
37
38 interrupts:
39 maxItems: 1
40
41 clocks:
42 items:
43 - description: clock for SPDIF bus
44 - description: clock for SPDIF controller
45
46 clock-names:
47 items:
48 - const: mclk
49 - const: hclk
50
51 dmas:
52 maxItems: 1
53
54 dma-names:
55 const: tx
56
57 power-domains:
58 maxItems: 1
59
60 rockchip,grf:
61 $ref: /schemas/types.yaml#/definitions/phandle
62 description:
63 The phandle of the syscon node for the GRF register.
64 Required property on RK3288.
65
66 "#sound-dai-cells":
67 const: 0
68
69 required:
70 - compatible
71 - reg
72 - interrupts
73 - clocks
74 - clock-names
75 - dmas
76 - dma-names
77 - "#sound-dai-cells"
78
79 allOf:
80 - $ref: dai-common.yaml#
81 - if:
82 properties:
83 compatible:
84 contains:
85 const: rockchip,rk3288-spdif
86 then:
87 required:
88 - rockchip,grf
89
90 unevaluatedProperties: false
91
92 examples:
93 - |
94 #include <dt-bindings/clock/rk3188-cru.h>
95 #include <dt-bindings/interrupt-controller/arm-gic.h>
96 spdif: spdif@1011e000 {
97 compatible = "rockchip,rk3188-spdif", "rockchip,rk3066-spdif";
98 reg = <0x1011e000 0x2000>;
99 interrupts = <GIC_SPI 32 IRQ_TYPE_LEVEL_HIGH>;
100 clocks = <&cru SCLK_SPDIF>, <&cru HCLK_SPDIF>;
101 clock-names = "mclk", "hclk";
102 dmas = <&dmac1_s 8>;
103 dma-names = "tx";
104 #sound-dai-cells = <0>;
105 };
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