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
7title: Rockchip SPDIF transceiver
8
9description:
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
14maintainers:
15  - Heiko Stuebner <heiko@sntech.de>
16
17properties:
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      - items:
27          - enum:
28              - rockchip,rk3188-spdif
29              - rockchip,rk3288-spdif
30          - const: rockchip,rk3066-spdif
31
32  reg:
33    maxItems: 1
34
35  interrupts:
36    maxItems: 1
37
38  clocks:
39    items:
40      - description: clock for SPDIF bus
41      - description: clock for SPDIF controller
42
43  clock-names:
44    items:
45      - const: mclk
46      - const: hclk
47
48  dmas:
49    maxItems: 1
50
51  dma-names:
52    const: tx
53
54  power-domains:
55    maxItems: 1
56
57  rockchip,grf:
58    $ref: /schemas/types.yaml#/definitions/phandle
59    description:
60      The phandle of the syscon node for the GRF register.
61      Required property on RK3288.
62
63  "#sound-dai-cells":
64    const: 0
65
66required:
67  - compatible
68  - reg
69  - interrupts
70  - clocks
71  - clock-names
72  - dmas
73  - dma-names
74  - "#sound-dai-cells"
75
76if:
77  properties:
78    compatible:
79      contains:
80        const: rockchip,rk3288-spdif
81
82then:
83  required:
84    - rockchip,grf
85
86additionalProperties: false
87
88examples:
89  - |
90    #include <dt-bindings/clock/rk3188-cru.h>
91    #include <dt-bindings/interrupt-controller/arm-gic.h>
92    spdif: spdif@1011e000 {
93      compatible = "rockchip,rk3188-spdif", "rockchip,rk3066-spdif";
94      reg = <0x1011e000 0x2000>;
95      interrupts = <GIC_SPI 32 IRQ_TYPE_LEVEL_HIGH>;
96      clocks = <&cru SCLK_SPDIF>, <&cru HCLK_SPDIF>;
97      clock-names = "mclk", "hclk";
98      dmas = <&dmac1_s 8>;
99      dma-names = "tx";
100      #sound-dai-cells = <0>;
101    };
102