xref: /linux/Documentation/devicetree/bindings/sound/renesas,fsi.yaml (revision 24bce201d79807b668bf9d9e0aca801c5c0d5f78) 
1# SPDX-License-Identifier: GPL-2.0
2%YAML 1.2
3---
4$id: http://devicetree.org/schemas/sound/renesas,fsi.yaml#
5$schema: http://devicetree.org/meta-schemas/core.yaml#
6
7title: Renesas FIFO-buffered Serial Interface (FSI)
8
9maintainers:
10  - Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
11
12properties:
13  $nodename:
14    pattern: "^sound@.*"
15
16  compatible:
17    oneOf:
18      # for FSI2 SoC
19      - items:
20          - enum:
21              - renesas,fsi2-sh73a0  # SH-Mobile AG5
22              - renesas,fsi2-r8a7740 # R-Mobile A1
23          - enum:
24              - renesas,sh_fsi2
25      # for Generic
26      - items:
27          - enum:
28              - renesas,sh_fsi
29              - renesas,sh_fsi2
30
31  reg:
32    maxItems: 1
33
34  interrupts:
35    maxItems: 1
36
37  clocks:
38    maxItems: 1
39
40  power-domains:
41    maxItems: 1
42
43  '#sound-dai-cells':
44    const: 1
45
46patternProperties:
47  "^fsi(a|b),spdif-connection$":
48    $ref: /schemas/types.yaml#/definitions/flag
49    description: FSI is connected by S/PDIF
50
51  "^fsi(a|b),stream-mode-support$":
52    $ref: /schemas/types.yaml#/definitions/flag
53    description: FSI supports 16bit stream mode
54
55  "^fsi(a|b),use-internal-clock$":
56    $ref: /schemas/types.yaml#/definitions/flag
57    description: FSI uses internal clock when master mode
58
59required:
60  - compatible
61  - reg
62  - interrupts
63  - clocks
64  - power-domains
65  - '#sound-dai-cells'
66
67additionalProperties: false
68
69examples:
70  - |
71    #include <dt-bindings/clock/r8a7740-clock.h>
72    #include <dt-bindings/interrupt-controller/arm-gic.h>
73    sh_fsi2: sound@fe1f0000 {
74            compatible = "renesas,fsi2-r8a7740", "renesas,sh_fsi2";
75            reg = <0xfe1f0000 0x400>;
76            interrupts = <GIC_SPI 9 0x4>;
77            clocks = <&mstp3_clks R8A7740_CLK_FSI>;
78            power-domains = <&pd_a4mp>;
79
80            #sound-dai-cells = <1>;
81            fsia,spdif-connection;
82            fsia,stream-mode-support;
83            fsia,use-internal-clock;
84    };
85