1 # SPDX-License-Identifier: GPL-2.0
2 %YAML 1.2
3 ---
4 $id: http://devicetree.org/schemas/display/allwinner,sun8i-r40-tcon-top.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
6
7 title: Allwinner R40 TCON TOP
8
9 maintainers:
10 - Chen-Yu Tsai <wens@csie.org>
11 - Maxime Ripard <mripard@kernel.org>
12
13 description: |
14 TCON TOPs main purpose is to configure whole display pipeline. It
15 determines relationships between mixers and TCONs, selects source
16 TCON for HDMI, muxes LCD and TV encoder GPIO output, selects TV
17 encoder clock source and contains additional TV TCON and DSI gates.
18
19 It allows display pipeline to be configured in very different ways:
20
21 / LCD0/LVDS0
22 / [0] TCON-LCD0
23 | \ MIPI DSI
24 mixer0 |
25 \ / [1] TCON-LCD1 - LCD1/LVDS1
26 TCON-TOP
27 / \ [2] TCON-TV0 [0] - TVE0/RGB
28 mixer1 | \
29 | TCON-TOP - HDMI
30 | /
31 \ [3] TCON-TV1 [1] - TVE1/RGB
32
33 Note that both TCON TOP references same physical unit. Both mixers
34 can be connected to any TCON. Not all TCON TOP variants support all
35 features.
36
37 properties:
38 "#clock-cells":
39 const: 1
40
41 compatible:
42 enum:
43 - allwinner,sun8i-r40-tcon-top
44 - allwinner,sun20i-d1-tcon-top
45 - allwinner,sun50i-h6-tcon-top
46
47 reg:
48 maxItems: 1
49
50 clocks:
51 minItems: 2
52 maxItems: 6
53
54 clock-names:
55 minItems: 2
56 maxItems: 6
57
58 clock-output-names:
59 minItems: 1
60 maxItems: 3
61
62 resets:
63 maxItems: 1
64
65 ports:
66 $ref: /schemas/graph.yaml#/properties/ports
67
68 properties:
69 port@0:
70 $ref: /schemas/graph.yaml#/properties/port
71 description: |
72 Input endpoint for Mixer 0 mux.
73
74 port@1:
75 $ref: /schemas/graph.yaml#/properties/port
76 description: |
77 Output endpoint for Mixer 0 mux
78
79 port@2:
80 $ref: /schemas/graph.yaml#/properties/port
81 description: |
82 Input endpoint for Mixer 1 mux.
83
84 port@3:
85 $ref: /schemas/graph.yaml#/properties/port
86 description: |
87 Output endpoint for Mixer 1 mux
88
89 port@4:
90 $ref: /schemas/graph.yaml#/properties/port
91 description: |
92 Input endpoint for HDMI mux.
93
94 port@5:
95 $ref: /schemas/graph.yaml#/properties/port
96 description: |
97 Output endpoint for HDMI mux
98
99 required:
100 - port@0
101 - port@1
102 - port@4
103 - port@5
104
105 required:
106 - "#clock-cells"
107 - compatible
108 - reg
109 - clocks
110 - clock-names
111 - clock-output-names
112 - resets
113 - ports
114
115 additionalProperties: false
116
117 allOf:
118 - if:
119 properties:
120 compatible:
121 contains:
122 const: allwinner,sun8i-r40-tcon-top
123
124 then:
125 properties:
126 clocks:
127 items:
128 - description: The TCON TOP interface clock
129 - description: The TCON TOP TV0 clock
130 - description: The TCON TOP TVE0 clock
131 - description: The TCON TOP TV1 clock
132 - description: The TCON TOP TVE1 clock
133 - description: The TCON TOP MIPI DSI clock
134
135 clock-names:
136 items:
137 - const: bus
138 - const: tcon-tv0
139 - const: tve0
140 - const: tcon-tv1
141 - const: tve1
142 - const: dsi
143
144 clock-output-names:
145 items:
146 - description: TCON TV0 output clock name
147 - description: TCON TV1 output clock name
148 - description: DSI output clock name
149
150 ports:
151 required:
152 - port@2
153 - port@3
154
155 - if:
156 properties:
157 compatible:
158 contains:
159 const: allwinner,sun20i-d1-tcon-top
160
161 then:
162 properties:
163 clocks:
164 items:
165 - description: The TCON TOP interface clock
166 - description: The TCON TOP TV0 clock
167 - description: The TCON TOP TVE0 clock
168 - description: The TCON TOP MIPI DSI clock
169
170 clock-names:
171 items:
172 - const: bus
173 - const: tcon-tv0
174 - const: tve0
175 - const: dsi
176
177 clock-output-names:
178 items:
179 - description: TCON TV0 output clock name
180 - description: DSI output clock name
181
182 - if:
183 properties:
184 compatible:
185 contains:
186 const: allwinner,sun50i-h6-tcon-top
187
188 then:
189 properties:
190 clocks:
191 items:
192 - description: The TCON TOP interface clock
193 - description: The TCON TOP TV0 clock
194
195 clock-names:
196 items:
197 - const: bus
198 - const: tcon-tv0
199
200 clock-output-names:
201 items:
202 - description: TCON TV0 output clock name
203
204 examples:
205 - |
206 #include <dt-bindings/interrupt-controller/arm-gic.h>
207
208 #include <dt-bindings/clock/sun8i-r40-ccu.h>
209 #include <dt-bindings/reset/sun8i-r40-ccu.h>
210
211 tcon_top: tcon-top@1c70000 {
212 compatible = "allwinner,sun8i-r40-tcon-top";
213 reg = <0x01c70000 0x1000>;
214 clocks = <&ccu CLK_BUS_TCON_TOP>,
215 <&ccu CLK_TCON_TV0>,
216 <&ccu CLK_TVE0>,
217 <&ccu CLK_TCON_TV1>,
218 <&ccu CLK_TVE1>,
219 <&ccu CLK_DSI_DPHY>;
220 clock-names = "bus",
221 "tcon-tv0",
222 "tve0",
223 "tcon-tv1",
224 "tve1",
225 "dsi";
226 clock-output-names = "tcon-top-tv0",
227 "tcon-top-tv1",
228 "tcon-top-dsi";
229 resets = <&ccu RST_BUS_TCON_TOP>;
230 #clock-cells = <1>;
231
232 ports {
233 #address-cells = <1>;
234 #size-cells = <0>;
235
236 tcon_top_mixer0_in: port@0 {
237 reg = <0>;
238
239 tcon_top_mixer0_in_mixer0: endpoint {
240 remote-endpoint = <&mixer0_out_tcon_top>;
241 };
242 };
243
244 tcon_top_mixer0_out: port@1 {
245 #address-cells = <1>;
246 #size-cells = <0>;
247 reg = <1>;
248
249 tcon_top_mixer0_out_tcon_lcd0: endpoint@0 {
250 reg = <0>;
251 };
252
253 tcon_top_mixer0_out_tcon_lcd1: endpoint@1 {
254 reg = <1>;
255 };
256
257 tcon_top_mixer0_out_tcon_tv0: endpoint@2 {
258 reg = <2>;
259 remote-endpoint = <&tcon_tv0_in_tcon_top_mixer0>;
260 };
261
262 tcon_top_mixer0_out_tcon_tv1: endpoint@3 {
263 reg = <3>;
264 remote-endpoint = <&tcon_tv1_in_tcon_top_mixer0>;
265 };
266 };
267
268 tcon_top_mixer1_in: port@2 {
269 #address-cells = <1>;
270 #size-cells = <0>;
271 reg = <2>;
272
273 tcon_top_mixer1_in_mixer1: endpoint@1 {
274 reg = <1>;
275 remote-endpoint = <&mixer1_out_tcon_top>;
276 };
277 };
278
279 tcon_top_mixer1_out: port@3 {
280 #address-cells = <1>;
281 #size-cells = <0>;
282 reg = <3>;
283
284 tcon_top_mixer1_out_tcon_lcd0: endpoint@0 {
285 reg = <0>;
286 };
287
288 tcon_top_mixer1_out_tcon_lcd1: endpoint@1 {
289 reg = <1>;
290 };
291
292 tcon_top_mixer1_out_tcon_tv0: endpoint@2 {
293 reg = <2>;
294 remote-endpoint = <&tcon_tv0_in_tcon_top_mixer1>;
295 };
296
297 tcon_top_mixer1_out_tcon_tv1: endpoint@3 {
298 reg = <3>;
299 remote-endpoint = <&tcon_tv1_in_tcon_top_mixer1>;
300 };
301 };
302
303 tcon_top_hdmi_in: port@4 {
304 #address-cells = <1>;
305 #size-cells = <0>;
306 reg = <4>;
307
308 tcon_top_hdmi_in_tcon_tv0: endpoint@0 {
309 reg = <0>;
310 remote-endpoint = <&tcon_tv0_out_tcon_top>;
311 };
312
313 tcon_top_hdmi_in_tcon_tv1: endpoint@1 {
314 reg = <1>;
315 remote-endpoint = <&tcon_tv1_out_tcon_top>;
316 };
317 };
318
319 tcon_top_hdmi_out: port@5 {
320 reg = <5>;
321
322 tcon_top_hdmi_out_hdmi: endpoint {
323 remote-endpoint = <&hdmi_in_tcon_top>;
324 };
325 };
326 };
327 };
328
329 ...
Linux® is a registered trademark of Linus Torvalds in the United States and other countries.
TOMOYO® is a registered trademark of NTT DATA CORPORATION.