1 # SPDX-License-Identifier: (GPL-2.0-only OR BS 1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
2 %YAML 1.2 2 %YAML 1.2
3 --- 3 ---
4 $id: http://devicetree.org/schemas/display/bri 4 $id: http://devicetree.org/schemas/display/bridge/sil,sii9022.yaml#
5 $schema: http://devicetree.org/meta-schemas/co 5 $schema: http://devicetree.org/meta-schemas/core.yaml#
6 6
7 title: Silicon Image sii902x HDMI bridge 7 title: Silicon Image sii902x HDMI bridge
8 8
9 maintainers: 9 maintainers:
10 - Boris Brezillon <bbrezillon@kernel.org> 10 - Boris Brezillon <bbrezillon@kernel.org>
11 11
12 properties: 12 properties:
13 compatible: 13 compatible:
14 oneOf: 14 oneOf:
15 - items: 15 - items:
16 - enum: 16 - enum:
17 - sil,sii9022-cpi # CEC Programm 17 - sil,sii9022-cpi # CEC Programming Interface
18 - sil,sii9022-tpi # Transmitter 18 - sil,sii9022-tpi # Transmitter Programming Interface
19 - const: sil,sii9022 19 - const: sil,sii9022
20 - const: sil,sii9022 20 - const: sil,sii9022
21 21
22 reg: 22 reg:
23 maxItems: 1 23 maxItems: 1
24 24
25 interrupts: 25 interrupts:
26 maxItems: 1 26 maxItems: 1
27 description: Interrupt line used to inform 27 description: Interrupt line used to inform the host about hotplug events.
28 28
29 reset-gpios: 29 reset-gpios:
30 maxItems: 1 30 maxItems: 1
31 31
32 iovcc-supply: 32 iovcc-supply:
33 description: I/O Supply Voltage (1.8V or 3 33 description: I/O Supply Voltage (1.8V or 3.3V)
34 34
35 cvcc12-supply: 35 cvcc12-supply:
36 description: Digital Core Supply Voltage ( 36 description: Digital Core Supply Voltage (1.2V)
37 37
38 '#sound-dai-cells': 38 '#sound-dai-cells':
39 enum: [ 0, 1 ] 39 enum: [ 0, 1 ]
40 description: | 40 description: |
41 <0> if only I2S or S/PDIF pin is wired, 41 <0> if only I2S or S/PDIF pin is wired,
42 <1> if both are wired. 42 <1> if both are wired.
43 HDMI audio is configured only if this pr 43 HDMI audio is configured only if this property is found.
44 If HDMI audio is configured, the sii902x 44 If HDMI audio is configured, the sii902x device becomes an I2S and/or
45 S/PDIF audio codec component (e.g. a dig 45 S/PDIF audio codec component (e.g. a digital audio sink), that can be
46 used in configuring full audio devices w 46 used in configuring full audio devices with simple-card or
47 audio-graph-card bindings. See their bin 47 audio-graph-card bindings. See their binding documents on how to describe
48 the way the 48 the way the
49 sii902x device is connected to the rest 49 sii902x device is connected to the rest of the audio system:
50 Documentation/devicetree/bindings/sound/ 50 Documentation/devicetree/bindings/sound/simple-card.yaml
51 Documentation/devicetree/bindings/sound/ 51 Documentation/devicetree/bindings/sound/audio-graph-card.yaml
52 Note: In case of the audio-graph-card bi 52 Note: In case of the audio-graph-card binding the used port index should
53 be 3. 53 be 3.
54 54
55 sil,i2s-data-lanes: 55 sil,i2s-data-lanes:
56 $ref: /schemas/types.yaml#/definitions/uin 56 $ref: /schemas/types.yaml#/definitions/uint32-array
57 minItems: 1 57 minItems: 1
58 maxItems: 4 58 maxItems: 4
59 uniqueItems: true 59 uniqueItems: true
60 items: 60 items:
61 enum: [ 0, 1, 2, 3 ] 61 enum: [ 0, 1, 2, 3 ]
62 description: 62 description:
63 Each integer indicates which I2S pin is 63 Each integer indicates which I2S pin is connected to which audio FIFO.
64 The first integer selects the I2S audio 64 The first integer selects the I2S audio pin for the first audio FIFO#0
65 (HDMI channels 1&2), the second for FIFO 65 (HDMI channels 1&2), the second for FIFO#1 (HDMI channels 3&4), and so
66 on. There are 4 FIFOs and 4 I2S pins (SD 66 on. There are 4 FIFOs and 4 I2S pins (SD0 - SD3). Any I2S pin can be
67 connected to any FIFO, but there can be 67 connected to any FIFO, but there can be no gaps. E.g. an I2S pin must be
68 mapped to FIFO#0 and FIFO#1 before mappi 68 mapped to FIFO#0 and FIFO#1 before mapping a channel to FIFO#2. The
69 default value is <0>, describing SD0 pin 69 default value is <0>, describing SD0 pin being routed to HDMI audio
70 FIFO#0. 70 FIFO#0.
71 71
72 clocks: 72 clocks:
73 maxItems: 1 73 maxItems: 1
74 description: MCLK input. MCLK can be used 74 description: MCLK input. MCLK can be used to produce HDMI audio CTS values.
75 75
76 clock-names: 76 clock-names:
77 const: mclk 77 const: mclk
78 78
79 ports: 79 ports:
80 $ref: /schemas/graph.yaml#/properties/port 80 $ref: /schemas/graph.yaml#/properties/ports
81 81
82 properties: 82 properties:
83 port@0: 83 port@0:
84 $ref: /schemas/graph.yaml#/properties/ 84 $ref: /schemas/graph.yaml#/properties/port
85 description: Parallel RGB input port 85 description: Parallel RGB input port
86 86
87 port@1: 87 port@1:
88 $ref: /schemas/graph.yaml#/properties/ 88 $ref: /schemas/graph.yaml#/properties/port
89 description: HDMI output port 89 description: HDMI output port
90 90
91 port@3: 91 port@3:
92 $ref: /schemas/graph.yaml#/properties/ 92 $ref: /schemas/graph.yaml#/properties/port
93 description: Sound input port 93 description: Sound input port
94 94
95 required: 95 required:
96 - compatible 96 - compatible
97 - reg 97 - reg
98 98
99 additionalProperties: false 99 additionalProperties: false
100 100
101 examples: 101 examples:
102 - | 102 - |
103 i2c { 103 i2c {
104 #address-cells = <1>; 104 #address-cells = <1>;
105 #size-cells = <0>; 105 #size-cells = <0>;
106 106
107 hdmi-bridge@39 { 107 hdmi-bridge@39 {
108 compatible = "sil,sii9022"; 108 compatible = "sil,sii9022";
109 reg = <0x39>; 109 reg = <0x39>;
110 reset-gpios = <&pioA 1 0>; 110 reset-gpios = <&pioA 1 0>;
111 iovcc-supply = <&v3v3_hdmi>; 111 iovcc-supply = <&v3v3_hdmi>;
112 cvcc12-supply = <&v1v2_hdmi>; 112 cvcc12-supply = <&v1v2_hdmi>;
113 113
114 #sound-dai-cells = <0>; 114 #sound-dai-cells = <0>;
115 sil,i2s-data-lanes = < 0 1 2 >; 115 sil,i2s-data-lanes = < 0 1 2 >;
116 clocks = <&mclk>; 116 clocks = <&mclk>;
117 clock-names = "mclk"; 117 clock-names = "mclk";
118 118
119 ports { 119 ports {
120 #address-cells = <1>; 120 #address-cells = <1>;
121 #size-cells = <0>; 121 #size-cells = <0>;
122 122
123 port@0 { 123 port@0 {
124 reg = <0>; 124 reg = <0>;
125 bridge_in: endpoint { 125 bridge_in: endpoint {
126 remote-endpoint = <&dc 126 remote-endpoint = <&dc_out>;
127 }; 127 };
128 }; 128 };
129 }; 129 };
130 }; 130 };
131 }; 131 };
Linux® is a registered trademark of Linus Torvalds in the United States and other countries.
TOMOYO® is a registered trademark of NTT DATA CORPORATION.