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1032fbfd BJ |
1 | /* |
2 | * Copyright (C) ST-Ericsson SA 2010 | |
3 | * | |
4 | * License Terms: GNU General Public License v2 | |
5 | * Authors: Sundar Iyer <sundar.iyer@stericsson.com> for ST-Ericsson | |
6 | * Bengt Jonsson <bengt.g.jonsson@stericsson.com> for ST-Ericsson | |
7 | * | |
8 | * Power domain regulators on DB8500 | |
9 | */ | |
10 | ||
11 | #include <linux/kernel.h> | |
12 | #include <linux/init.h> | |
13 | #include <linux/err.h> | |
14 | #include <linux/spinlock.h> | |
15 | #include <linux/platform_device.h> | |
73180f85 | 16 | #include <linux/mfd/dbx500-prcmu.h> |
1032fbfd BJ |
17 | #include <linux/regulator/driver.h> |
18 | #include <linux/regulator/machine.h> | |
19 | #include <linux/regulator/db8500-prcmu.h> | |
1bdd670a LJ |
20 | #include <linux/regulator/of_regulator.h> |
21 | #include <linux/of.h> | |
65602c32 | 22 | #include <linux/module.h> |
38e96838 | 23 | #include "dbx500-prcmu.h" |
1032fbfd BJ |
24 | |
25 | static int db8500_regulator_enable(struct regulator_dev *rdev) | |
26 | { | |
38e96838 | 27 | struct dbx500_regulator_info *info = rdev_get_drvdata(rdev); |
1032fbfd BJ |
28 | |
29 | if (info == NULL) | |
30 | return -EINVAL; | |
31 | ||
32 | dev_vdbg(rdev_get_dev(rdev), "regulator-%s-enable\n", | |
33 | info->desc.name); | |
34 | ||
38e96838 BJ |
35 | if (!info->is_enabled) { |
36 | info->is_enabled = true; | |
37 | if (!info->exclude_from_power_state) | |
38 | power_state_active_enable(); | |
39 | } | |
1032fbfd BJ |
40 | |
41 | return 0; | |
42 | } | |
43 | ||
44 | static int db8500_regulator_disable(struct regulator_dev *rdev) | |
45 | { | |
38e96838 | 46 | struct dbx500_regulator_info *info = rdev_get_drvdata(rdev); |
1032fbfd BJ |
47 | int ret = 0; |
48 | ||
49 | if (info == NULL) | |
50 | return -EINVAL; | |
51 | ||
52 | dev_vdbg(rdev_get_dev(rdev), "regulator-%s-disable\n", | |
53 | info->desc.name); | |
54 | ||
38e96838 BJ |
55 | if (info->is_enabled) { |
56 | info->is_enabled = false; | |
57 | if (!info->exclude_from_power_state) | |
58 | ret = power_state_active_disable(); | |
59 | } | |
1032fbfd BJ |
60 | |
61 | return ret; | |
62 | } | |
63 | ||
64 | static int db8500_regulator_is_enabled(struct regulator_dev *rdev) | |
65 | { | |
38e96838 | 66 | struct dbx500_regulator_info *info = rdev_get_drvdata(rdev); |
1032fbfd BJ |
67 | |
68 | if (info == NULL) | |
69 | return -EINVAL; | |
70 | ||
71 | dev_vdbg(rdev_get_dev(rdev), "regulator-%s-is_enabled (is_enabled):" | |
72 | " %i\n", info->desc.name, info->is_enabled); | |
73 | ||
74 | return info->is_enabled; | |
75 | } | |
76 | ||
77 | /* db8500 regulator operations */ | |
78 | static struct regulator_ops db8500_regulator_ops = { | |
79 | .enable = db8500_regulator_enable, | |
80 | .disable = db8500_regulator_disable, | |
81 | .is_enabled = db8500_regulator_is_enabled, | |
82 | }; | |
83 | ||
84 | /* | |
85 | * EPOD control | |
86 | */ | |
87 | static bool epod_on[NUM_EPOD_ID]; | |
88 | static bool epod_ramret[NUM_EPOD_ID]; | |
89 | ||
90 | static int enable_epod(u16 epod_id, bool ramret) | |
91 | { | |
92 | int ret; | |
93 | ||
94 | if (ramret) { | |
95 | if (!epod_on[epod_id]) { | |
96 | ret = prcmu_set_epod(epod_id, EPOD_STATE_RAMRET); | |
97 | if (ret < 0) | |
98 | return ret; | |
99 | } | |
100 | epod_ramret[epod_id] = true; | |
101 | } else { | |
102 | ret = prcmu_set_epod(epod_id, EPOD_STATE_ON); | |
103 | if (ret < 0) | |
104 | return ret; | |
105 | epod_on[epod_id] = true; | |
106 | } | |
107 | ||
108 | return 0; | |
109 | } | |
110 | ||
111 | static int disable_epod(u16 epod_id, bool ramret) | |
112 | { | |
113 | int ret; | |
114 | ||
115 | if (ramret) { | |
116 | if (!epod_on[epod_id]) { | |
117 | ret = prcmu_set_epod(epod_id, EPOD_STATE_OFF); | |
118 | if (ret < 0) | |
119 | return ret; | |
120 | } | |
121 | epod_ramret[epod_id] = false; | |
122 | } else { | |
123 | if (epod_ramret[epod_id]) { | |
124 | ret = prcmu_set_epod(epod_id, EPOD_STATE_RAMRET); | |
125 | if (ret < 0) | |
126 | return ret; | |
127 | } else { | |
128 | ret = prcmu_set_epod(epod_id, EPOD_STATE_OFF); | |
129 | if (ret < 0) | |
130 | return ret; | |
131 | } | |
132 | epod_on[epod_id] = false; | |
133 | } | |
134 | ||
135 | return 0; | |
136 | } | |
137 | ||
138 | /* | |
139 | * Regulator switch | |
140 | */ | |
141 | static int db8500_regulator_switch_enable(struct regulator_dev *rdev) | |
142 | { | |
38e96838 | 143 | struct dbx500_regulator_info *info = rdev_get_drvdata(rdev); |
1032fbfd BJ |
144 | int ret; |
145 | ||
146 | if (info == NULL) | |
147 | return -EINVAL; | |
148 | ||
149 | dev_vdbg(rdev_get_dev(rdev), "regulator-switch-%s-enable\n", | |
150 | info->desc.name); | |
151 | ||
152 | ret = enable_epod(info->epod_id, info->is_ramret); | |
153 | if (ret < 0) { | |
154 | dev_err(rdev_get_dev(rdev), | |
155 | "regulator-switch-%s-enable: prcmu call failed\n", | |
156 | info->desc.name); | |
157 | goto out; | |
158 | } | |
159 | ||
160 | info->is_enabled = true; | |
161 | out: | |
162 | return ret; | |
163 | } | |
164 | ||
165 | static int db8500_regulator_switch_disable(struct regulator_dev *rdev) | |
166 | { | |
38e96838 | 167 | struct dbx500_regulator_info *info = rdev_get_drvdata(rdev); |
1032fbfd BJ |
168 | int ret; |
169 | ||
170 | if (info == NULL) | |
171 | return -EINVAL; | |
172 | ||
173 | dev_vdbg(rdev_get_dev(rdev), "regulator-switch-%s-disable\n", | |
174 | info->desc.name); | |
175 | ||
176 | ret = disable_epod(info->epod_id, info->is_ramret); | |
177 | if (ret < 0) { | |
178 | dev_err(rdev_get_dev(rdev), | |
179 | "regulator_switch-%s-disable: prcmu call failed\n", | |
180 | info->desc.name); | |
181 | goto out; | |
182 | } | |
183 | ||
184 | info->is_enabled = 0; | |
185 | out: | |
186 | return ret; | |
187 | } | |
188 | ||
189 | static int db8500_regulator_switch_is_enabled(struct regulator_dev *rdev) | |
190 | { | |
38e96838 | 191 | struct dbx500_regulator_info *info = rdev_get_drvdata(rdev); |
1032fbfd BJ |
192 | |
193 | if (info == NULL) | |
194 | return -EINVAL; | |
195 | ||
196 | dev_vdbg(rdev_get_dev(rdev), | |
197 | "regulator-switch-%s-is_enabled (is_enabled): %i\n", | |
198 | info->desc.name, info->is_enabled); | |
199 | ||
200 | return info->is_enabled; | |
201 | } | |
202 | ||
203 | static struct regulator_ops db8500_regulator_switch_ops = { | |
204 | .enable = db8500_regulator_switch_enable, | |
205 | .disable = db8500_regulator_switch_disable, | |
206 | .is_enabled = db8500_regulator_switch_is_enabled, | |
207 | }; | |
208 | ||
209 | /* | |
210 | * Regulator information | |
211 | */ | |
38e96838 BJ |
212 | static struct dbx500_regulator_info |
213 | dbx500_regulator_info[DB8500_NUM_REGULATORS] = { | |
1032fbfd BJ |
214 | [DB8500_REGULATOR_VAPE] = { |
215 | .desc = { | |
216 | .name = "db8500-vape", | |
217 | .id = DB8500_REGULATOR_VAPE, | |
218 | .ops = &db8500_regulator_ops, | |
219 | .type = REGULATOR_VOLTAGE, | |
220 | .owner = THIS_MODULE, | |
221 | }, | |
222 | }, | |
223 | [DB8500_REGULATOR_VARM] = { | |
224 | .desc = { | |
225 | .name = "db8500-varm", | |
226 | .id = DB8500_REGULATOR_VARM, | |
227 | .ops = &db8500_regulator_ops, | |
228 | .type = REGULATOR_VOLTAGE, | |
229 | .owner = THIS_MODULE, | |
230 | }, | |
231 | }, | |
232 | [DB8500_REGULATOR_VMODEM] = { | |
233 | .desc = { | |
234 | .name = "db8500-vmodem", | |
235 | .id = DB8500_REGULATOR_VMODEM, | |
236 | .ops = &db8500_regulator_ops, | |
237 | .type = REGULATOR_VOLTAGE, | |
238 | .owner = THIS_MODULE, | |
239 | }, | |
240 | }, | |
241 | [DB8500_REGULATOR_VPLL] = { | |
242 | .desc = { | |
243 | .name = "db8500-vpll", | |
244 | .id = DB8500_REGULATOR_VPLL, | |
245 | .ops = &db8500_regulator_ops, | |
246 | .type = REGULATOR_VOLTAGE, | |
247 | .owner = THIS_MODULE, | |
248 | }, | |
249 | }, | |
250 | [DB8500_REGULATOR_VSMPS1] = { | |
251 | .desc = { | |
252 | .name = "db8500-vsmps1", | |
253 | .id = DB8500_REGULATOR_VSMPS1, | |
254 | .ops = &db8500_regulator_ops, | |
255 | .type = REGULATOR_VOLTAGE, | |
256 | .owner = THIS_MODULE, | |
257 | }, | |
258 | }, | |
259 | [DB8500_REGULATOR_VSMPS2] = { | |
260 | .desc = { | |
261 | .name = "db8500-vsmps2", | |
262 | .id = DB8500_REGULATOR_VSMPS2, | |
263 | .ops = &db8500_regulator_ops, | |
264 | .type = REGULATOR_VOLTAGE, | |
265 | .owner = THIS_MODULE, | |
266 | }, | |
267 | .exclude_from_power_state = true, | |
268 | }, | |
269 | [DB8500_REGULATOR_VSMPS3] = { | |
270 | .desc = { | |
271 | .name = "db8500-vsmps3", | |
272 | .id = DB8500_REGULATOR_VSMPS3, | |
273 | .ops = &db8500_regulator_ops, | |
274 | .type = REGULATOR_VOLTAGE, | |
275 | .owner = THIS_MODULE, | |
276 | }, | |
277 | }, | |
278 | [DB8500_REGULATOR_VRF1] = { | |
279 | .desc = { | |
280 | .name = "db8500-vrf1", | |
281 | .id = DB8500_REGULATOR_VRF1, | |
282 | .ops = &db8500_regulator_ops, | |
283 | .type = REGULATOR_VOLTAGE, | |
284 | .owner = THIS_MODULE, | |
285 | }, | |
286 | }, | |
287 | [DB8500_REGULATOR_SWITCH_SVAMMDSP] = { | |
288 | .desc = { | |
289 | .name = "db8500-sva-mmdsp", | |
290 | .id = DB8500_REGULATOR_SWITCH_SVAMMDSP, | |
291 | .ops = &db8500_regulator_switch_ops, | |
292 | .type = REGULATOR_VOLTAGE, | |
293 | .owner = THIS_MODULE, | |
294 | }, | |
295 | .epod_id = EPOD_ID_SVAMMDSP, | |
296 | }, | |
297 | [DB8500_REGULATOR_SWITCH_SVAMMDSPRET] = { | |
298 | .desc = { | |
299 | .name = "db8500-sva-mmdsp-ret", | |
300 | .id = DB8500_REGULATOR_SWITCH_SVAMMDSPRET, | |
301 | .ops = &db8500_regulator_switch_ops, | |
302 | .type = REGULATOR_VOLTAGE, | |
303 | .owner = THIS_MODULE, | |
304 | }, | |
305 | .epod_id = EPOD_ID_SVAMMDSP, | |
306 | .is_ramret = true, | |
307 | }, | |
308 | [DB8500_REGULATOR_SWITCH_SVAPIPE] = { | |
309 | .desc = { | |
310 | .name = "db8500-sva-pipe", | |
311 | .id = DB8500_REGULATOR_SWITCH_SVAPIPE, | |
312 | .ops = &db8500_regulator_switch_ops, | |
313 | .type = REGULATOR_VOLTAGE, | |
314 | .owner = THIS_MODULE, | |
315 | }, | |
316 | .epod_id = EPOD_ID_SVAPIPE, | |
317 | }, | |
318 | [DB8500_REGULATOR_SWITCH_SIAMMDSP] = { | |
319 | .desc = { | |
320 | .name = "db8500-sia-mmdsp", | |
321 | .id = DB8500_REGULATOR_SWITCH_SIAMMDSP, | |
322 | .ops = &db8500_regulator_switch_ops, | |
323 | .type = REGULATOR_VOLTAGE, | |
324 | .owner = THIS_MODULE, | |
325 | }, | |
326 | .epod_id = EPOD_ID_SIAMMDSP, | |
327 | }, | |
328 | [DB8500_REGULATOR_SWITCH_SIAMMDSPRET] = { | |
329 | .desc = { | |
330 | .name = "db8500-sia-mmdsp-ret", | |
331 | .id = DB8500_REGULATOR_SWITCH_SIAMMDSPRET, | |
332 | .ops = &db8500_regulator_switch_ops, | |
333 | .type = REGULATOR_VOLTAGE, | |
334 | .owner = THIS_MODULE, | |
335 | }, | |
336 | .epod_id = EPOD_ID_SIAMMDSP, | |
337 | .is_ramret = true, | |
338 | }, | |
339 | [DB8500_REGULATOR_SWITCH_SIAPIPE] = { | |
340 | .desc = { | |
341 | .name = "db8500-sia-pipe", | |
342 | .id = DB8500_REGULATOR_SWITCH_SIAPIPE, | |
343 | .ops = &db8500_regulator_switch_ops, | |
344 | .type = REGULATOR_VOLTAGE, | |
345 | .owner = THIS_MODULE, | |
346 | }, | |
347 | .epod_id = EPOD_ID_SIAPIPE, | |
348 | }, | |
349 | [DB8500_REGULATOR_SWITCH_SGA] = { | |
350 | .desc = { | |
351 | .name = "db8500-sga", | |
352 | .id = DB8500_REGULATOR_SWITCH_SGA, | |
353 | .ops = &db8500_regulator_switch_ops, | |
354 | .type = REGULATOR_VOLTAGE, | |
355 | .owner = THIS_MODULE, | |
356 | }, | |
357 | .epod_id = EPOD_ID_SGA, | |
358 | }, | |
359 | [DB8500_REGULATOR_SWITCH_B2R2_MCDE] = { | |
360 | .desc = { | |
361 | .name = "db8500-b2r2-mcde", | |
362 | .id = DB8500_REGULATOR_SWITCH_B2R2_MCDE, | |
363 | .ops = &db8500_regulator_switch_ops, | |
364 | .type = REGULATOR_VOLTAGE, | |
365 | .owner = THIS_MODULE, | |
366 | }, | |
367 | .epod_id = EPOD_ID_B2R2_MCDE, | |
368 | }, | |
369 | [DB8500_REGULATOR_SWITCH_ESRAM12] = { | |
370 | .desc = { | |
371 | .name = "db8500-esram12", | |
372 | .id = DB8500_REGULATOR_SWITCH_ESRAM12, | |
373 | .ops = &db8500_regulator_switch_ops, | |
374 | .type = REGULATOR_VOLTAGE, | |
375 | .owner = THIS_MODULE, | |
376 | }, | |
377 | .epod_id = EPOD_ID_ESRAM12, | |
378 | .is_enabled = true, | |
379 | }, | |
380 | [DB8500_REGULATOR_SWITCH_ESRAM12RET] = { | |
381 | .desc = { | |
382 | .name = "db8500-esram12-ret", | |
383 | .id = DB8500_REGULATOR_SWITCH_ESRAM12RET, | |
384 | .ops = &db8500_regulator_switch_ops, | |
385 | .type = REGULATOR_VOLTAGE, | |
386 | .owner = THIS_MODULE, | |
387 | }, | |
388 | .epod_id = EPOD_ID_ESRAM12, | |
389 | .is_ramret = true, | |
390 | }, | |
391 | [DB8500_REGULATOR_SWITCH_ESRAM34] = { | |
392 | .desc = { | |
393 | .name = "db8500-esram34", | |
394 | .id = DB8500_REGULATOR_SWITCH_ESRAM34, | |
395 | .ops = &db8500_regulator_switch_ops, | |
396 | .type = REGULATOR_VOLTAGE, | |
397 | .owner = THIS_MODULE, | |
398 | }, | |
399 | .epod_id = EPOD_ID_ESRAM34, | |
400 | .is_enabled = true, | |
401 | }, | |
402 | [DB8500_REGULATOR_SWITCH_ESRAM34RET] = { | |
403 | .desc = { | |
404 | .name = "db8500-esram34-ret", | |
405 | .id = DB8500_REGULATOR_SWITCH_ESRAM34RET, | |
406 | .ops = &db8500_regulator_switch_ops, | |
407 | .type = REGULATOR_VOLTAGE, | |
408 | .owner = THIS_MODULE, | |
409 | }, | |
410 | .epod_id = EPOD_ID_ESRAM34, | |
411 | .is_ramret = true, | |
412 | }, | |
413 | }; | |
414 | ||
8986cf88 LJ |
415 | static __devinit int db8500_regulator_register(struct platform_device *pdev, |
416 | struct regulator_init_data *init_data, | |
417 | int id, | |
418 | struct device_node *np) | |
419 | { | |
420 | struct dbx500_regulator_info *info; | |
421 | struct regulator_config config = { }; | |
422 | int err; | |
423 | ||
424 | /* assign per-regulator data */ | |
425 | info = &dbx500_regulator_info[id]; | |
426 | info->dev = &pdev->dev; | |
427 | ||
428 | config.dev = &pdev->dev; | |
429 | config.init_data = init_data; | |
430 | config.driver_data = info; | |
431 | config.of_node = np; | |
432 | ||
433 | /* register with the regulator framework */ | |
434 | info->rdev = regulator_register(&info->desc, &config); | |
435 | if (IS_ERR(info->rdev)) { | |
436 | err = PTR_ERR(info->rdev); | |
437 | dev_err(&pdev->dev, "failed to register %s: err %i\n", | |
438 | info->desc.name, err); | |
439 | ||
440 | /* if failing, unregister all earlier regulators */ | |
441 | while (--id >= 0) { | |
442 | info = &dbx500_regulator_info[id]; | |
443 | regulator_unregister(info->rdev); | |
444 | } | |
445 | return err; | |
446 | } | |
447 | ||
448 | dev_dbg(rdev_get_dev(info->rdev), | |
449 | "regulator-%s-probed\n", info->desc.name); | |
450 | ||
451 | return 0; | |
452 | } | |
453 | ||
1bdd670a LJ |
454 | static struct of_regulator_match db8500_regulator_matches[] = { |
455 | { .name = "db8500-vape", .driver_data = (void *) DB8500_REGULATOR_VAPE, }, | |
456 | { .name = "db8500-varm", .driver_data = (void *) DB8500_REGULATOR_VARM, }, | |
457 | { .name = "db8500-vmodem", .driver_data = (void *) DB8500_REGULATOR_VMODEM, }, | |
458 | { .name = "db8500-vpll", .driver_data = (void *) DB8500_REGULATOR_VPLL, }, | |
459 | { .name = "db8500-vsmps1", .driver_data = (void *) DB8500_REGULATOR_VSMPS1, }, | |
460 | { .name = "db8500-vsmps2", .driver_data = (void *) DB8500_REGULATOR_VSMPS2, }, | |
461 | { .name = "db8500-vsmps3", .driver_data = (void *) DB8500_REGULATOR_VSMPS3, }, | |
462 | { .name = "db8500-vrf1", .driver_data = (void *) DB8500_REGULATOR_VRF1, }, | |
463 | { .name = "db8500-sva-mmdsp", .driver_data = (void *) DB8500_REGULATOR_SWITCH_SVAMMDSP, }, | |
464 | { .name = "db8500-sva-mmdsp-ret", .driver_data = (void *) DB8500_REGULATOR_SWITCH_SVAMMDSPRET, }, | |
465 | { .name = "db8500-sva-pipe", .driver_data = (void *) DB8500_REGULATOR_SWITCH_SVAPIPE, }, | |
466 | { .name = "db8500-sia-mmdsp", .driver_data = (void *) DB8500_REGULATOR_SWITCH_SIAMMDSP, }, | |
467 | { .name = "db8500-sia-mmdsp-ret", .driver_data = (void *) DB8500_REGULATOR_SWITCH_SIAMMDSPRET, }, | |
468 | { .name = "db8500-sia-pipe", .driver_data = (void *) DB8500_REGULATOR_SWITCH_SIAPIPE, }, | |
469 | { .name = "db8500-sga", .driver_data = (void *) DB8500_REGULATOR_SWITCH_SGA, }, | |
470 | { .name = "db8500-b2r2-mcde", .driver_data = (void *) DB8500_REGULATOR_SWITCH_B2R2_MCDE, }, | |
471 | { .name = "db8500-esram12", .driver_data = (void *) DB8500_REGULATOR_SWITCH_ESRAM12, }, | |
472 | { .name = "db8500-esram12-ret", .driver_data = (void *) DB8500_REGULATOR_SWITCH_ESRAM12RET, }, | |
473 | { .name = "db8500-esram34", .driver_data = (void *) DB8500_REGULATOR_SWITCH_ESRAM34, }, | |
474 | { .name = "db8500-esram34-ret", .driver_data = (void *) DB8500_REGULATOR_SWITCH_ESRAM34RET, }, | |
475 | }; | |
476 | ||
477 | static __devinit int | |
478 | db8500_regulator_of_probe(struct platform_device *pdev, | |
479 | struct device_node *np) | |
480 | { | |
481 | int i, err; | |
482 | ||
483 | for (i = 0; i < ARRAY_SIZE(dbx500_regulator_info); i++) { | |
484 | err = db8500_regulator_register( | |
485 | pdev, db8500_regulator_matches[i].init_data, | |
486 | i, db8500_regulator_matches[i].of_node); | |
487 | if (err) | |
488 | return err; | |
489 | } | |
490 | ||
491 | return 0; | |
492 | } | |
493 | ||
1032fbfd BJ |
494 | static int __devinit db8500_regulator_probe(struct platform_device *pdev) |
495 | { | |
17cf8b42 SO |
496 | struct regulator_init_data *db8500_init_data = |
497 | dev_get_platdata(&pdev->dev); | |
1bdd670a | 498 | struct device_node *np = pdev->dev.of_node; |
1032fbfd BJ |
499 | int i, err; |
500 | ||
501 | /* register all regulators */ | |
1bdd670a LJ |
502 | if (np) { |
503 | err = of_regulator_match(&pdev->dev, np, | |
504 | db8500_regulator_matches, | |
505 | ARRAY_SIZE(db8500_regulator_matches)); | |
506 | if (err < 0) { | |
507 | dev_err(&pdev->dev, | |
508 | "Error parsing regulator init data: %d\n", err); | |
1032fbfd | 509 | return err; |
1bdd670a | 510 | } |
1032fbfd | 511 | |
1bdd670a LJ |
512 | err = db8500_regulator_of_probe(pdev, np); |
513 | if (err) | |
514 | return err; | |
515 | } else { | |
516 | for (i = 0; i < ARRAY_SIZE(dbx500_regulator_info); i++) { | |
517 | err = db8500_regulator_register(pdev, | |
518 | &db8500_init_data[i], | |
519 | i, NULL); | |
520 | if (err) | |
521 | return err; | |
522 | } | |
1032fbfd | 523 | } |
1bdd670a | 524 | |
38e96838 BJ |
525 | err = ux500_regulator_debug_init(pdev, |
526 | dbx500_regulator_info, | |
527 | ARRAY_SIZE(dbx500_regulator_info)); | |
8986cf88 | 528 | return 0; |
1032fbfd BJ |
529 | } |
530 | ||
531 | static int __exit db8500_regulator_remove(struct platform_device *pdev) | |
532 | { | |
533 | int i; | |
534 | ||
38e96838 BJ |
535 | ux500_regulator_debug_exit(); |
536 | ||
537 | for (i = 0; i < ARRAY_SIZE(dbx500_regulator_info); i++) { | |
538 | struct dbx500_regulator_info *info; | |
539 | info = &dbx500_regulator_info[i]; | |
1032fbfd BJ |
540 | |
541 | dev_vdbg(rdev_get_dev(info->rdev), | |
542 | "regulator-%s-remove\n", info->desc.name); | |
543 | ||
544 | regulator_unregister(info->rdev); | |
545 | } | |
546 | ||
547 | return 0; | |
548 | } | |
549 | ||
1bdd670a LJ |
550 | static const struct of_device_id db8500_prcmu_regulator_match[] = { |
551 | { .compatible = "stericsson,db8500-prcmu-regulator", }, | |
552 | {} | |
553 | }; | |
554 | ||
1032fbfd BJ |
555 | static struct platform_driver db8500_regulator_driver = { |
556 | .driver = { | |
557 | .name = "db8500-prcmu-regulators", | |
558 | .owner = THIS_MODULE, | |
1bdd670a | 559 | .of_match_table = db8500_prcmu_regulator_match, |
1032fbfd BJ |
560 | }, |
561 | .probe = db8500_regulator_probe, | |
562 | .remove = __exit_p(db8500_regulator_remove), | |
563 | }; | |
564 | ||
565 | static int __init db8500_regulator_init(void) | |
566 | { | |
90609503 | 567 | return platform_driver_register(&db8500_regulator_driver); |
1032fbfd BJ |
568 | } |
569 | ||
570 | static void __exit db8500_regulator_exit(void) | |
571 | { | |
572 | platform_driver_unregister(&db8500_regulator_driver); | |
573 | } | |
574 | ||
575 | arch_initcall(db8500_regulator_init); | |
576 | module_exit(db8500_regulator_exit); | |
577 | ||
578 | MODULE_AUTHOR("STMicroelectronics/ST-Ericsson"); | |
579 | MODULE_DESCRIPTION("DB8500 regulator driver"); | |
580 | MODULE_LICENSE("GPL v2"); |