1 # SPDX-License-Identifier: GPL-2.0
2 %YAML 1.2
3 ---
4 $id: http://devicetree.org/schemas/power/rockc
5 $schema: http://devicetree.org/meta-schemas/co
6
7 title: Rockchip SRAM for IO Voltage Domains
8
9 maintainers:
10 - Heiko Stuebner <heiko@sntech.de>
11
12 description: |
13 IO domain voltages on some Rockchip SoCs are
14 kept in sync between the regulators and the
15 register.
16
17 A specific example using rk3288
18 If the regulator hooked up to a pin like S
19 bit 7 of GRF_IO_VSEL needs to be 0. If the
20 that same pin is 1.8V then bit 7 of GRF_IO
21
22 Said another way, this driver simply handles
23 General Register File (GRF) in sync with the
24 hooked up to the pins.
25
26 Note that this driver specifically does not
27 any logic for deciding what voltage we sho
28 any logic for deciding whether regulators
29 should have power or not have power
30
31 If there were some other software that had t
32 decisions about regulators, it would work in
33 driver. When that other software adjusted a
34 this driver would handle telling the SoC abo
35 vqmmc for SD. In that case the dw_mmc driver
36 regulator. It changes the regulator between
37 right time. This driver notices the change a
38 SoC is on the same page.
39
40 You specify supplies using the standard regu
41 a phandle the relevant regulator. All specif
42 to report their voltage. The IO Voltage Doma
43 supplies will be not be touched.
44
45 properties:
46 compatible:
47 enum:
48 - rockchip,px30-io-voltage-domain
49 - rockchip,px30-pmu-io-voltage-domain
50 - rockchip,rk3188-io-voltage-domain
51 - rockchip,rk3228-io-voltage-domain
52 - rockchip,rk3288-io-voltage-domain
53 - rockchip,rk3308-io-voltage-domain
54 - rockchip,rk3328-io-voltage-domain
55 - rockchip,rk3368-io-voltage-domain
56 - rockchip,rk3368-pmu-io-voltage-domain
57 - rockchip,rk3399-io-voltage-domain
58 - rockchip,rk3399-pmu-io-voltage-domain
59 - rockchip,rk3568-pmu-io-voltage-domain
60 - rockchip,rv1108-io-voltage-domain
61 - rockchip,rv1108-pmu-io-voltage-domain
62 - rockchip,rv1126-pmu-io-voltage-domain
63
64 required:
65 - compatible
66
67 unevaluatedProperties: false
68
69 allOf:
70 - $ref: "#/$defs/px30"
71 - $ref: "#/$defs/px30-pmu"
72 - $ref: "#/$defs/rk3188"
73 - $ref: "#/$defs/rk3228"
74 - $ref: "#/$defs/rk3288"
75 - $ref: "#/$defs/rk3308"
76 - $ref: "#/$defs/rk3328"
77 - $ref: "#/$defs/rk3368"
78 - $ref: "#/$defs/rk3368-pmu"
79 - $ref: "#/$defs/rk3399"
80 - $ref: "#/$defs/rk3399-pmu"
81 - $ref: "#/$defs/rk3568-pmu"
82 - $ref: "#/$defs/rv1108"
83 - $ref: "#/$defs/rv1108-pmu"
84 - $ref: "#/$defs/rv1126-pmu"
85
86 $defs:
87 px30:
88 if:
89 properties:
90 compatible:
91 contains:
92 const: rockchip,px30-io-voltage-do
93
94 then:
95 properties:
96 vccio1-supply:
97 description: The supply connected to
98 vccio2-supply:
99 description: The supply connected to
100 vccio3-supply:
101 description: The supply connected to
102 vccio4-supply:
103 description: The supply connected to
104 vccio5-supply:
105 description: The supply connected to
106 vccio6-supply:
107 description: The supply connected to
108 vccio-oscgpi-supply:
109 description: The supply connected to
110
111 px30-pmu:
112 if:
113 properties:
114 compatible:
115 contains:
116 const: rockchip,px30-pmu-io-voltag
117
118 then:
119 properties:
120 pmuio1-supply:
121 description: The supply connected to
122 pmuio2-supply:
123 description: The supply connected to
124
125 rk3188:
126 if:
127 properties:
128 compatible:
129 contains:
130 const: rockchip,rk3188-io-voltage-
131
132 then:
133 properties:
134 ap0-supply:
135 description: The supply connected to
136 ap1-supply:
137 description: The supply connected to
138 cif-supply:
139 description: The supply connected to
140 flash-supply:
141 description: The supply connected to
142 lcdc0-supply:
143 description: The supply connected to
144 lcdc1-supply:
145 description: The supply connected to
146 vccio0-supply:
147 description: The supply connected to
148 vccio1-supply:
149 description: The supply connected to
150
151 rk3228:
152 if:
153 properties:
154 compatible:
155 contains:
156 const: rockchip,rk3228-io-voltage-
157
158 then:
159 properties:
160 vccio1-supply:
161 description: The supply connected to
162 vccio2-supply:
163 description: The supply connected to
164 vccio3-supply:
165 description: The supply connected to
166 vccio4-supply:
167 description: The supply connected to
168
169 rk3288:
170 if:
171 properties:
172 compatible:
173 contains:
174 const: rockchip,rk3288-io-voltage-
175
176 then:
177 properties:
178 audio-supply:
179 description: The supply connected to
180 bb-supply:
181 description: The supply connected to
182 dvp-supply:
183 description: The supply connected to
184 flash0-supply:
185 description: The supply connected to
186 flash1-supply:
187 description: The supply connected to
188 gpio30-supply:
189 description: The supply connected to
190 gpio1830-supply:
191 description: The supply connected to
192 lcdc-supply:
193 description: The supply connected to
194 sdcard-supply:
195 description: The supply connected to
196 wifi-supply:
197 description: The supply connected to
198
199 rk3308:
200 if:
201 properties:
202 compatible:
203 contains:
204 const: rockchip,rk3308-io-voltage-
205
206 then:
207 properties:
208 vccio0-supply:
209 description: The supply connected to
210 vccio1-supply:
211 description: The supply connected to
212 vccio2-supply:
213 description: The supply connected to
214 vccio3-supply:
215 description: The supply connected to
216 vccio4-supply:
217 description: The supply connected to
218 vccio5-supply:
219 description: The supply connected to
220
221 rk3328:
222 if:
223 properties:
224 compatible:
225 contains:
226 const: rockchip,rk3328-io-voltage-
227
228 then:
229 properties:
230 vccio1-supply:
231 description: The supply connected to
232 vccio2-supply:
233 description: The supply connected to
234 vccio3-supply:
235 description: The supply connected to
236 vccio4-supply:
237 description: The supply connected to
238 vccio5-supply:
239 description: The supply connected to
240 vccio6-supply:
241 description: The supply connected to
242 pmuio-supply:
243 description: The supply connected to
244
245 rk3368:
246 if:
247 properties:
248 compatible:
249 contains:
250 const: rockchip,rk3368-io-voltage-
251
252 then:
253 properties:
254 audio-supply:
255 description: The supply connected to
256 dvp-supply:
257 description: The supply connected to
258 flash0-supply:
259 description: The supply connected to
260 gpio30-supply:
261 description: The supply connected to
262 gpio1830-supply:
263 description: The supply connected to
264 sdcard-supply:
265 description: The supply connected to
266 wifi-supply:
267 description: The supply connected to
268
269 rk3368-pmu:
270 if:
271 properties:
272 compatible:
273 contains:
274 const: rockchip,rk3368-pmu-io-volt
275
276 then:
277 properties:
278 pmu-supply:
279 description: The supply connected to
280 vop-supply:
281 description: The supply connected to
282
283 rk3399:
284 if:
285 properties:
286 compatible:
287 contains:
288 const: rockchip,rk3399-io-voltage-
289
290 then:
291 properties:
292 audio-supply:
293 description: The supply connected to
294 bt656-supply:
295 description: The supply connected to
296 gpio1830-supply:
297 description: The supply connected to
298 sdmmc-supply:
299 description: The supply connected to
300
301 rk3399-pmu:
302 if:
303 properties:
304 compatible:
305 contains:
306 const: rockchip,rk3399-pmu-io-volt
307
308 then:
309 properties:
310 pmu1830-supply:
311 description: The supply connected to
312
313 rk3568-pmu:
314 if:
315 properties:
316 compatible:
317 contains:
318 const: rockchip,rk3568-pmu-io-volt
319
320 then:
321 properties:
322 pmuio1-supply:
323 description: The supply connected to
324 pmuio2-supply:
325 description: The supply connected to
326 vccio1-supply:
327 description: The supply connected to
328 vccio2-supply:
329 description: The supply connected to
330 vccio3-supply:
331 description: The supply connected to
332 vccio4-supply:
333 description: The supply connected to
334 vccio5-supply:
335 description: The supply connected to
336 vccio6-supply:
337 description: The supply connected to
338 vccio7-supply:
339 description: The supply connected to
340
341 rv1108:
342 if:
343 properties:
344 compatible:
345 contains:
346 const: rockchip,rv1108-io-voltage-
347
348 then:
349 properties:
350 vccio1-supply:
351 description: The supply connected to
352 vccio2-supply:
353 description: The supply connected to
354 vccio3-supply:
355 description: The supply connected to
356 vccio5-supply:
357 description: The supply connected to
358 vccio6-supply:
359 description: The supply connected to
360
361 rv1108-pmu:
362 if:
363 properties:
364 compatible:
365 contains:
366 const: rockchip,rv1108-pmu-io-volt
367
368 then:
369 properties:
370 pmu-supply:
371 description: The supply connected to
372
373 rv1126-pmu:
374 if:
375 properties:
376 compatible:
377 contains:
378 const: rockchip,rv1126-pmu-io-volt
379
380 then:
381 properties:
382 vccio1-supply:
383 description: The supply connected to
384 vccio2-supply:
385 description: The supply connected to
386 vccio3-supply:
387 description: The supply connected to
388 vccio4-supply:
389 description: The supply connected to
390 vccio5-supply:
391 description: The supply connected to
392 vccio6-supply:
393 description: The supply connected to
394 vccio7-supply:
395 description: The supply connected to
396 pmuio0-supply:
397 description: The supply connected to
398 pmuio1-supply:
399 description: The supply connected to
400
401 examples:
402 - |
403 io-domains {
404 compatible = "rockchip,rk3288-io-voltage
405 audio-supply = <&vcc18_codec>;
406 bb-supply = <&vcc33_io>;
407 dvp-supply = <&vcc_18>;
408 flash0-supply = <&vcc18_flashio>;
409 gpio1830-supply = <&vcc33_io>;
410 gpio30-supply = <&vcc33_pmuio>;
411 lcdc-supply = <&vcc33_lcd>;
412 sdcard-supply = <&vccio_sd>;
413 wifi-supply = <&vcc18_wl>;
414 };
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