tjh.dev
Linux kernel mirror (for testing)
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1# SPDX-License-Identifier: GPL-2.0
2%YAML 1.2
3---
4$id: http://devicetree.org/schemas/display/allwinner,sun4i-a10-hdmi.yaml#
5$schema: http://devicetree.org/meta-schemas/core.yaml#
6
7title: Allwinner A10 HDMI Controller Device Tree Bindings
8
9description: |
10 The HDMI Encoder supports the HDMI video and audio outputs, and does
11 CEC. It is one end of the pipeline.
12
13maintainers:
14 - Chen-Yu Tsai <wens@csie.org>
15 - Maxime Ripard <mripard@kernel.org>
16
17properties:
18 compatible:
19 oneOf:
20 - const: allwinner,sun4i-a10-hdmi
21 - const: allwinner,sun5i-a10s-hdmi
22 - const: allwinner,sun6i-a31-hdmi
23 - items:
24 - const: allwinner,sun7i-a20-hdmi
25 - const: allwinner,sun5i-a10s-hdmi
26
27 reg:
28 maxItems: 1
29
30 interrupts:
31 maxItems: 1
32
33 clocks:
34 oneOf:
35 - items:
36 - description: The HDMI interface clock
37 - description: The HDMI module clock
38 - description: The first video PLL
39 - description: The second video PLL
40
41 - items:
42 - description: The HDMI interface clock
43 - description: The HDMI module clock
44 - description: The HDMI DDC clock
45 - description: The first video PLL
46 - description: The second video PLL
47
48 clock-names:
49 oneOf:
50 - items:
51 - const: ahb
52 - const: mod
53 - const: pll-0
54 - const: pll-1
55
56 - items:
57 - const: ahb
58 - const: mod
59 - const: ddc
60 - const: pll-0
61 - const: pll-1
62
63 resets:
64 maxItems: 1
65
66 dmas:
67 items:
68 - description: DDC Transmission DMA Channel
69 - description: DDC Reception DMA Channel
70 - description: Audio Transmission DMA Channel
71
72 dma-names:
73 items:
74 - const: ddc-tx
75 - const: ddc-rx
76 - const: audio-tx
77
78 ports:
79 type: object
80 description: |
81 A ports node with endpoint definitions as defined in
82 Documentation/devicetree/bindings/media/video-interfaces.txt.
83
84 properties:
85 "#address-cells":
86 const: 1
87
88 "#size-cells":
89 const: 0
90
91 port@0:
92 type: object
93 description: |
94 Input endpoints of the controller.
95
96 port@1:
97 type: object
98 description: |
99 Output endpoints of the controller. Usually an HDMI
100 connector.
101
102 required:
103 - "#address-cells"
104 - "#size-cells"
105 - port@0
106 - port@1
107
108 additionalProperties: false
109
110required:
111 - compatible
112 - reg
113 - interrupts
114 - clocks
115 - clock-names
116 - dmas
117 - dma-names
118
119if:
120 properties:
121 compatible:
122 contains:
123 const: allwinner,sun6i-a31-hdmi
124
125then:
126 properties:
127 clocks:
128 minItems: 5
129
130 clock-names:
131 minItems: 5
132
133 required:
134 - resets
135
136additionalProperties: false
137
138examples:
139 - |
140 #include <dt-bindings/clock/sun4i-a10-ccu.h>
141 #include <dt-bindings/dma/sun4i-a10.h>
142 #include <dt-bindings/reset/sun4i-a10-ccu.h>
143
144 hdmi: hdmi@1c16000 {
145 compatible = "allwinner,sun4i-a10-hdmi";
146 reg = <0x01c16000 0x1000>;
147 interrupts = <58>;
148 clocks = <&ccu CLK_AHB_HDMI0>, <&ccu CLK_HDMI>,
149 <&ccu CLK_PLL_VIDEO0_2X>,
150 <&ccu CLK_PLL_VIDEO1_2X>;
151 clock-names = "ahb", "mod", "pll-0", "pll-1";
152 dmas = <&dma SUN4I_DMA_NORMAL 16>,
153 <&dma SUN4I_DMA_NORMAL 16>,
154 <&dma SUN4I_DMA_DEDICATED 24>;
155 dma-names = "ddc-tx", "ddc-rx", "audio-tx";
156
157 ports {
158 #address-cells = <1>;
159 #size-cells = <0>;
160
161 hdmi_in: port@0 {
162 #address-cells = <1>;
163 #size-cells = <0>;
164 reg = <0>;
165
166 hdmi_in_tcon0: endpoint@0 {
167 reg = <0>;
168 remote-endpoint = <&tcon0_out_hdmi>;
169 };
170
171 hdmi_in_tcon1: endpoint@1 {
172 reg = <1>;
173 remote-endpoint = <&tcon1_out_hdmi>;
174 };
175 };
176
177 hdmi_out: port@1 {
178 reg = <1>;
179 };
180 };
181 };
182
183...