xref: /linux/Documentation/devicetree/bindings/sound/renesas,fsi.yaml (revision c532de5a67a70f8533d495f8f2aaa9a0491c3ad0) 
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
12allOf:
13  - $ref: dai-common.yaml#
14
15properties:
16  $nodename:
17    pattern: "^sound@.*"
18
19  compatible:
20    oneOf:
21      # for FSI2 SoC
22      - items:
23          - enum:
24              - renesas,fsi2-sh73a0  # SH-Mobile AG5
25              - renesas,fsi2-r8a7740 # R-Mobile A1
26          - enum:
27              - renesas,sh_fsi2
28      # for Generic
29      - items:
30          - enum:
31              - renesas,sh_fsi
32              - renesas,sh_fsi2
33
34  reg:
35    maxItems: 1
36
37  interrupts:
38    maxItems: 1
39
40  clocks:
41    maxItems: 1
42
43  power-domains:
44    maxItems: 1
45
46  '#sound-dai-cells':
47    const: 1
48
49patternProperties:
50  "^fsi(a|b),spdif-connection$":
51    $ref: /schemas/types.yaml#/definitions/flag
52    description: FSI is connected by S/PDIF
53
54  "^fsi(a|b),stream-mode-support$":
55    $ref: /schemas/types.yaml#/definitions/flag
56    description: FSI supports 16bit stream mode
57
58  "^fsi(a|b),use-internal-clock$":
59    $ref: /schemas/types.yaml#/definitions/flag
60    description: FSI uses internal clock when master mode
61
62required:
63  - compatible
64  - reg
65  - interrupts
66  - clocks
67  - power-domains
68  - '#sound-dai-cells'
69
70unevaluatedProperties: false
71
72examples:
73  - |
74    #include <dt-bindings/clock/r8a7740-clock.h>
75    #include <dt-bindings/interrupt-controller/arm-gic.h>
76    sh_fsi2: sound@fe1f0000 {
77            compatible = "renesas,fsi2-r8a7740", "renesas,sh_fsi2";
78            reg = <0xfe1f0000 0x400>;
79            interrupts = <GIC_SPI 9 0x4>;
80            clocks = <&mstp3_clks R8A7740_CLK_FSI>;
81            power-domains = <&pd_a4mp>;
82
83            #sound-dai-cells = <1>;
84            fsia,spdif-connection;
85            fsia,stream-mode-support;
86            fsia,use-internal-clock;
87    };
88