1 | // SPDX-License-Identifier: GPL-2.0+ |
2 | // |
3 | // Regulator driver for DA9063 PMIC series |
4 | // |
5 | // Copyright 2012 Dialog Semiconductors Ltd. |
6 | // Copyright 2013 Philipp Zabel, Pengutronix |
7 | // |
8 | // Author: Krystian Garbaciak <krystian.garbaciak@diasemi.com> |
9 | |
10 | #include <linux/kernel.h> |
11 | #include <linux/module.h> |
12 | #include <linux/init.h> |
13 | #include <linux/err.h> |
14 | #include <linux/slab.h> |
15 | #include <linux/of.h> |
16 | #include <linux/platform_device.h> |
17 | #include <linux/regmap.h> |
18 | #include <linux/regulator/driver.h> |
19 | #include <linux/regulator/machine.h> |
20 | #include <linux/regulator/of_regulator.h> |
21 | #include <linux/mfd/da9063/core.h> |
22 | #include <linux/mfd/da9063/registers.h> |
23 | |
24 | |
25 | /* Definition for registering regmap bit fields using a mask */ |
26 | #define BFIELD(_reg, _mask) \ |
27 | REG_FIELD(_reg, __builtin_ffs((int)_mask) - 1, \ |
28 | sizeof(unsigned int) * 8 - __builtin_clz((_mask)) - 1) |
29 | |
30 | /* DA9063 and DA9063L regulator IDs */ |
31 | enum { |
32 | /* BUCKs */ |
33 | DA9063_ID_BCORE1, |
34 | DA9063_ID_BCORE2, |
35 | DA9063_ID_BPRO, |
36 | DA9063_ID_BMEM, |
37 | DA9063_ID_BIO, |
38 | DA9063_ID_BPERI, |
39 | |
40 | /* BCORE1 and BCORE2 in merged mode */ |
41 | DA9063_ID_BCORES_MERGED, |
42 | /* BMEM and BIO in merged mode */ |
43 | DA9063_ID_BMEM_BIO_MERGED, |
44 | /* When two BUCKs are merged, they cannot be reused separately */ |
45 | |
46 | /* LDOs on both DA9063 and DA9063L */ |
47 | DA9063_ID_LDO3, |
48 | DA9063_ID_LDO7, |
49 | DA9063_ID_LDO8, |
50 | DA9063_ID_LDO9, |
51 | DA9063_ID_LDO11, |
52 | |
53 | /* DA9063-only LDOs */ |
54 | DA9063_ID_LDO1, |
55 | DA9063_ID_LDO2, |
56 | DA9063_ID_LDO4, |
57 | DA9063_ID_LDO5, |
58 | DA9063_ID_LDO6, |
59 | DA9063_ID_LDO10, |
60 | }; |
61 | |
62 | /* Old regulator platform data */ |
63 | struct da9063_regulator_data { |
64 | int id; |
65 | struct regulator_init_data *initdata; |
66 | }; |
67 | |
68 | struct da9063_regulators_pdata { |
69 | unsigned int n_regulators; |
70 | struct da9063_regulator_data *regulator_data; |
71 | }; |
72 | |
73 | /* Regulator capabilities and registers description */ |
74 | struct da9063_regulator_info { |
75 | struct regulator_desc desc; |
76 | |
77 | /* DA9063 main register fields */ |
78 | struct reg_field mode; /* buck mode of operation */ |
79 | struct reg_field suspend; |
80 | struct reg_field sleep; |
81 | struct reg_field suspend_sleep; |
82 | unsigned int suspend_vsel_reg; |
83 | |
84 | /* DA9063 event detection bit */ |
85 | struct reg_field oc_event; |
86 | |
87 | /* DA9063 voltage monitor bit */ |
88 | struct reg_field vmon; |
89 | }; |
90 | |
91 | /* Macros for LDO */ |
92 | #define DA9063_LDO(chip, regl_name, min_mV, step_mV, max_mV) \ |
93 | .desc.id = chip##_ID_##regl_name, \ |
94 | .desc.name = __stringify(chip##_##regl_name), \ |
95 | .desc.ops = &da9063_ldo_ops, \ |
96 | .desc.min_uV = (min_mV) * 1000, \ |
97 | .desc.uV_step = (step_mV) * 1000, \ |
98 | .desc.n_voltages = (((max_mV) - (min_mV))/(step_mV) + 1 \ |
99 | + (DA9063_V##regl_name##_BIAS)), \ |
100 | .desc.enable_reg = DA9063_REG_##regl_name##_CONT, \ |
101 | .desc.enable_mask = DA9063_LDO_EN, \ |
102 | .desc.vsel_reg = DA9063_REG_V##regl_name##_A, \ |
103 | .desc.vsel_mask = DA9063_V##regl_name##_MASK, \ |
104 | .desc.linear_min_sel = DA9063_V##regl_name##_BIAS, \ |
105 | .sleep = BFIELD(DA9063_REG_V##regl_name##_A, DA9063_LDO_SL), \ |
106 | .suspend = BFIELD(DA9063_REG_##regl_name##_CONT, DA9063_LDO_CONF), \ |
107 | .suspend_sleep = BFIELD(DA9063_REG_V##regl_name##_B, DA9063_LDO_SL), \ |
108 | .suspend_vsel_reg = DA9063_REG_V##regl_name##_B |
109 | |
110 | /* Macros for voltage DC/DC converters (BUCKs) */ |
111 | #define DA9063_BUCK(chip, regl_name, min_mV, step_mV, max_mV, limits_array, \ |
112 | creg, cmask) \ |
113 | .desc.id = chip##_ID_##regl_name, \ |
114 | .desc.name = __stringify(chip##_##regl_name), \ |
115 | .desc.ops = &da9063_buck_ops, \ |
116 | .desc.min_uV = (min_mV) * 1000, \ |
117 | .desc.uV_step = (step_mV) * 1000, \ |
118 | .desc.n_voltages = ((max_mV) - (min_mV))/(step_mV) + 1, \ |
119 | .desc.csel_reg = (creg), \ |
120 | .desc.csel_mask = (cmask), \ |
121 | .desc.curr_table = limits_array, \ |
122 | .desc.n_current_limits = ARRAY_SIZE(limits_array) |
123 | |
124 | #define DA9063_BUCK_COMMON_FIELDS(regl_name) \ |
125 | .desc.enable_reg = DA9063_REG_##regl_name##_CONT, \ |
126 | .desc.enable_mask = DA9063_BUCK_EN, \ |
127 | .desc.vsel_reg = DA9063_REG_V##regl_name##_A, \ |
128 | .desc.vsel_mask = DA9063_VBUCK_MASK, \ |
129 | .desc.linear_min_sel = DA9063_VBUCK_BIAS, \ |
130 | .sleep = BFIELD(DA9063_REG_V##regl_name##_A, DA9063_BUCK_SL), \ |
131 | .suspend = BFIELD(DA9063_REG_##regl_name##_CONT, DA9063_BUCK_CONF), \ |
132 | .suspend_sleep = BFIELD(DA9063_REG_V##regl_name##_B, DA9063_BUCK_SL), \ |
133 | .suspend_vsel_reg = DA9063_REG_V##regl_name##_B, \ |
134 | .mode = BFIELD(DA9063_REG_##regl_name##_CFG, DA9063_BUCK_MODE_MASK) |
135 | |
136 | /* Defines asignment of regulators info table to chip model */ |
137 | struct da9063_dev_model { |
138 | const struct da9063_regulator_info *regulator_info; |
139 | unsigned int n_regulators; |
140 | enum da9063_type type; |
141 | }; |
142 | |
143 | /* Single regulator settings */ |
144 | struct da9063_regulator { |
145 | struct regulator_desc desc; |
146 | struct regulator_dev *rdev; |
147 | struct da9063 *hw; |
148 | const struct da9063_regulator_info *info; |
149 | |
150 | struct regmap_field *mode; |
151 | struct regmap_field *suspend; |
152 | struct regmap_field *sleep; |
153 | struct regmap_field *suspend_sleep; |
154 | struct regmap_field *vmon; |
155 | }; |
156 | |
157 | /* Encapsulates all information for the regulators driver */ |
158 | struct da9063_regulators { |
159 | unsigned int n_regulators; |
160 | /* Array size to be defined during init. Keep at end. */ |
161 | struct da9063_regulator regulator[] __counted_by(n_regulators); |
162 | }; |
163 | |
164 | /* BUCK modes for DA9063 */ |
165 | enum { |
166 | BUCK_MODE_MANUAL, /* 0 */ |
167 | BUCK_MODE_SLEEP, /* 1 */ |
168 | BUCK_MODE_SYNC, /* 2 */ |
169 | BUCK_MODE_AUTO /* 3 */ |
170 | }; |
171 | |
172 | /* Regulator operations */ |
173 | |
174 | /* |
175 | * Current limits array (in uA) for BCORE1, BCORE2, BPRO. |
176 | * Entry indexes corresponds to register values. |
177 | */ |
178 | static const unsigned int da9063_buck_a_limits[] = { |
179 | 500000, 600000, 700000, 800000, 900000, 1000000, 1100000, 1200000, |
180 | 1300000, 1400000, 1500000, 1600000, 1700000, 1800000, 1900000, 2000000 |
181 | }; |
182 | |
183 | /* |
184 | * Current limits array (in uA) for BMEM, BIO, BPERI. |
185 | * Entry indexes corresponds to register values. |
186 | */ |
187 | static const unsigned int da9063_buck_b_limits[] = { |
188 | 1500000, 1600000, 1700000, 1800000, 1900000, 2000000, 2100000, 2200000, |
189 | 2300000, 2400000, 2500000, 2600000, 2700000, 2800000, 2900000, 3000000 |
190 | }; |
191 | |
192 | /* |
193 | * Current limits array (in uA) for merged BCORE1 and BCORE2. |
194 | * Entry indexes corresponds to register values. |
195 | */ |
196 | static const unsigned int da9063_bcores_merged_limits[] = { |
197 | 1000000, 1200000, 1400000, 1600000, 1800000, 2000000, 2200000, 2400000, |
198 | 2600000, 2800000, 3000000, 3200000, 3400000, 3600000, 3800000, 4000000 |
199 | }; |
200 | |
201 | /* |
202 | * Current limits array (in uA) for merged BMEM and BIO. |
203 | * Entry indexes corresponds to register values. |
204 | */ |
205 | static const unsigned int da9063_bmem_bio_merged_limits[] = { |
206 | 3000000, 3200000, 3400000, 3600000, 3800000, 4000000, 4200000, 4400000, |
207 | 4600000, 4800000, 5000000, 5200000, 5400000, 5600000, 5800000, 6000000 |
208 | }; |
209 | |
210 | static int da9063_set_xvp(struct regulator_dev *rdev, int lim_uV, int severity, bool enable) |
211 | { |
212 | struct da9063_regulator *regl = rdev_get_drvdata(rdev); |
213 | struct device *dev = regl->hw->dev; |
214 | |
215 | dev_dbg(dev, "%s: lim: %d, sev: %d, en: %d\n" , regl->desc.name, lim_uV, severity, enable); |
216 | |
217 | /* |
218 | * only support enable and disable. |
219 | * the da9063 offers a GPIO (GP_FB2) which is unasserted if an XV happens. |
220 | * therefore ignore severity here, as there might be handlers in hardware. |
221 | */ |
222 | if (lim_uV) |
223 | return -EINVAL; |
224 | |
225 | return regmap_field_write(field: regl->vmon, val: enable ? 1 : 0); |
226 | } |
227 | |
228 | static int da9063_buck_set_mode(struct regulator_dev *rdev, unsigned int mode) |
229 | { |
230 | struct da9063_regulator *regl = rdev_get_drvdata(rdev); |
231 | unsigned int val; |
232 | |
233 | switch (mode) { |
234 | case REGULATOR_MODE_FAST: |
235 | val = BUCK_MODE_SYNC; |
236 | break; |
237 | case REGULATOR_MODE_NORMAL: |
238 | val = BUCK_MODE_AUTO; |
239 | break; |
240 | case REGULATOR_MODE_STANDBY: |
241 | val = BUCK_MODE_SLEEP; |
242 | break; |
243 | default: |
244 | return -EINVAL; |
245 | } |
246 | |
247 | return regmap_field_write(field: regl->mode, val); |
248 | } |
249 | |
250 | /* |
251 | * Bucks use single mode register field for normal operation |
252 | * and suspend state. |
253 | * There are 3 modes to map to: FAST, NORMAL, and STANDBY. |
254 | */ |
255 | |
256 | static unsigned int da9063_buck_get_mode(struct regulator_dev *rdev) |
257 | { |
258 | struct da9063_regulator *regl = rdev_get_drvdata(rdev); |
259 | unsigned int val; |
260 | int ret; |
261 | |
262 | ret = regmap_field_read(field: regl->mode, val: &val); |
263 | if (ret < 0) |
264 | return ret; |
265 | |
266 | switch (val) { |
267 | default: |
268 | case BUCK_MODE_MANUAL: |
269 | /* Sleep flag bit decides the mode */ |
270 | break; |
271 | case BUCK_MODE_SLEEP: |
272 | return REGULATOR_MODE_STANDBY; |
273 | case BUCK_MODE_SYNC: |
274 | return REGULATOR_MODE_FAST; |
275 | case BUCK_MODE_AUTO: |
276 | return REGULATOR_MODE_NORMAL; |
277 | } |
278 | |
279 | ret = regmap_field_read(field: regl->sleep, val: &val); |
280 | if (ret < 0) |
281 | return 0; |
282 | |
283 | if (val) |
284 | return REGULATOR_MODE_STANDBY; |
285 | else |
286 | return REGULATOR_MODE_FAST; |
287 | } |
288 | |
289 | /* |
290 | * LDOs use sleep flags - one for normal and one for suspend state. |
291 | * There are 2 modes to map to: NORMAL and STANDBY (sleep) for each state. |
292 | */ |
293 | |
294 | static int da9063_ldo_set_mode(struct regulator_dev *rdev, unsigned int mode) |
295 | { |
296 | struct da9063_regulator *regl = rdev_get_drvdata(rdev); |
297 | unsigned int val; |
298 | |
299 | switch (mode) { |
300 | case REGULATOR_MODE_NORMAL: |
301 | val = 0; |
302 | break; |
303 | case REGULATOR_MODE_STANDBY: |
304 | val = 1; |
305 | break; |
306 | default: |
307 | return -EINVAL; |
308 | } |
309 | |
310 | return regmap_field_write(field: regl->sleep, val); |
311 | } |
312 | |
313 | static unsigned int da9063_ldo_get_mode(struct regulator_dev *rdev) |
314 | { |
315 | struct da9063_regulator *regl = rdev_get_drvdata(rdev); |
316 | int ret, val; |
317 | |
318 | ret = regmap_field_read(field: regl->sleep, val: &val); |
319 | if (ret < 0) |
320 | return 0; |
321 | |
322 | if (val) |
323 | return REGULATOR_MODE_STANDBY; |
324 | else |
325 | return REGULATOR_MODE_NORMAL; |
326 | } |
327 | |
328 | static int da9063_buck_get_status(struct regulator_dev *rdev) |
329 | { |
330 | int ret = regulator_is_enabled_regmap(rdev); |
331 | |
332 | if (ret == 0) { |
333 | ret = REGULATOR_STATUS_OFF; |
334 | } else if (ret > 0) { |
335 | ret = da9063_buck_get_mode(rdev); |
336 | if (ret > 0) |
337 | ret = regulator_mode_to_status(ret); |
338 | else if (ret == 0) |
339 | ret = -EIO; |
340 | } |
341 | |
342 | return ret; |
343 | } |
344 | |
345 | static int da9063_ldo_get_status(struct regulator_dev *rdev) |
346 | { |
347 | int ret = regulator_is_enabled_regmap(rdev); |
348 | |
349 | if (ret == 0) { |
350 | ret = REGULATOR_STATUS_OFF; |
351 | } else if (ret > 0) { |
352 | ret = da9063_ldo_get_mode(rdev); |
353 | if (ret > 0) |
354 | ret = regulator_mode_to_status(ret); |
355 | else if (ret == 0) |
356 | ret = -EIO; |
357 | } |
358 | |
359 | return ret; |
360 | } |
361 | |
362 | static int da9063_set_suspend_voltage(struct regulator_dev *rdev, int uV) |
363 | { |
364 | struct da9063_regulator *regl = rdev_get_drvdata(rdev); |
365 | const struct da9063_regulator_info *rinfo = regl->info; |
366 | int ret, sel; |
367 | |
368 | sel = regulator_map_voltage_linear(rdev, min_uV: uV, max_uV: uV); |
369 | if (sel < 0) |
370 | return sel; |
371 | |
372 | sel <<= ffs(rdev->desc->vsel_mask) - 1; |
373 | |
374 | ret = regmap_update_bits(map: regl->hw->regmap, reg: rinfo->suspend_vsel_reg, |
375 | mask: rdev->desc->vsel_mask, val: sel); |
376 | |
377 | return ret; |
378 | } |
379 | |
380 | static int da9063_suspend_enable(struct regulator_dev *rdev) |
381 | { |
382 | struct da9063_regulator *regl = rdev_get_drvdata(rdev); |
383 | |
384 | return regmap_field_write(field: regl->suspend, val: 1); |
385 | } |
386 | |
387 | static int da9063_suspend_disable(struct regulator_dev *rdev) |
388 | { |
389 | struct da9063_regulator *regl = rdev_get_drvdata(rdev); |
390 | |
391 | return regmap_field_write(field: regl->suspend, val: 0); |
392 | } |
393 | |
394 | static int da9063_buck_set_suspend_mode(struct regulator_dev *rdev, |
395 | unsigned int mode) |
396 | { |
397 | struct da9063_regulator *regl = rdev_get_drvdata(rdev); |
398 | int val; |
399 | |
400 | switch (mode) { |
401 | case REGULATOR_MODE_FAST: |
402 | val = BUCK_MODE_SYNC; |
403 | break; |
404 | case REGULATOR_MODE_NORMAL: |
405 | val = BUCK_MODE_AUTO; |
406 | break; |
407 | case REGULATOR_MODE_STANDBY: |
408 | val = BUCK_MODE_SLEEP; |
409 | break; |
410 | default: |
411 | return -EINVAL; |
412 | } |
413 | |
414 | return regmap_field_write(field: regl->mode, val); |
415 | } |
416 | |
417 | static int da9063_ldo_set_suspend_mode(struct regulator_dev *rdev, |
418 | unsigned int mode) |
419 | { |
420 | struct da9063_regulator *regl = rdev_get_drvdata(rdev); |
421 | unsigned int val; |
422 | |
423 | switch (mode) { |
424 | case REGULATOR_MODE_NORMAL: |
425 | val = 0; |
426 | break; |
427 | case REGULATOR_MODE_STANDBY: |
428 | val = 1; |
429 | break; |
430 | default: |
431 | return -EINVAL; |
432 | } |
433 | |
434 | return regmap_field_write(field: regl->suspend_sleep, val); |
435 | } |
436 | |
437 | static unsigned int da9063_get_overdrive_mask(const struct regulator_desc *desc) |
438 | { |
439 | switch (desc->id) { |
440 | case DA9063_ID_BCORES_MERGED: |
441 | case DA9063_ID_BCORE1: |
442 | return DA9063_BCORE1_OD; |
443 | case DA9063_ID_BCORE2: |
444 | return DA9063_BCORE2_OD; |
445 | case DA9063_ID_BPRO: |
446 | return DA9063_BPRO_OD; |
447 | default: |
448 | return 0; |
449 | } |
450 | } |
451 | |
452 | static int da9063_buck_set_limit_set_overdrive(struct regulator_dev *rdev, |
453 | int min_uA, int max_uA, |
454 | unsigned int overdrive_mask) |
455 | { |
456 | /* |
457 | * When enabling overdrive, do it before changing the current limit to |
458 | * ensure sufficient supply throughout the switch. |
459 | */ |
460 | struct da9063_regulator *regl = rdev_get_drvdata(rdev); |
461 | int ret; |
462 | unsigned int orig_overdrive; |
463 | |
464 | ret = regmap_read(map: regl->hw->regmap, DA9063_REG_CONFIG_H, |
465 | val: &orig_overdrive); |
466 | if (ret < 0) |
467 | return ret; |
468 | orig_overdrive &= overdrive_mask; |
469 | |
470 | if (orig_overdrive == 0) { |
471 | ret = regmap_set_bits(map: regl->hw->regmap, DA9063_REG_CONFIG_H, |
472 | bits: overdrive_mask); |
473 | if (ret < 0) |
474 | return ret; |
475 | } |
476 | |
477 | ret = regulator_set_current_limit_regmap(rdev, min_uA: min_uA / 2, max_uA: max_uA / 2); |
478 | if (ret < 0 && orig_overdrive == 0) |
479 | /* |
480 | * regulator_set_current_limit_regmap may have rejected the |
481 | * change because of unusable min_uA and/or max_uA inputs. |
482 | * Attempt to restore original overdrive state, ignore failure- |
483 | * on-failure. |
484 | */ |
485 | regmap_clear_bits(map: regl->hw->regmap, DA9063_REG_CONFIG_H, |
486 | bits: overdrive_mask); |
487 | |
488 | return ret; |
489 | } |
490 | |
491 | static int da9063_buck_set_limit_clear_overdrive(struct regulator_dev *rdev, |
492 | int min_uA, int max_uA, |
493 | unsigned int overdrive_mask) |
494 | { |
495 | /* |
496 | * When disabling overdrive, do it after changing the current limit to |
497 | * ensure sufficient supply throughout the switch. |
498 | */ |
499 | struct da9063_regulator *regl = rdev_get_drvdata(rdev); |
500 | int ret, orig_limit; |
501 | |
502 | ret = regmap_read(map: rdev->regmap, reg: rdev->desc->csel_reg, val: &orig_limit); |
503 | if (ret < 0) |
504 | return ret; |
505 | |
506 | ret = regulator_set_current_limit_regmap(rdev, min_uA, max_uA); |
507 | if (ret < 0) |
508 | return ret; |
509 | |
510 | ret = regmap_clear_bits(map: regl->hw->regmap, DA9063_REG_CONFIG_H, |
511 | bits: overdrive_mask); |
512 | if (ret < 0) |
513 | /* |
514 | * Attempt to restore original current limit, ignore failure- |
515 | * on-failure. |
516 | */ |
517 | regmap_write(map: rdev->regmap, reg: rdev->desc->csel_reg, val: orig_limit); |
518 | |
519 | return ret; |
520 | } |
521 | |
522 | static int da9063_buck_set_current_limit(struct regulator_dev *rdev, |
523 | int min_uA, int max_uA) |
524 | { |
525 | unsigned int overdrive_mask, n_currents; |
526 | |
527 | overdrive_mask = da9063_get_overdrive_mask(desc: rdev->desc); |
528 | if (overdrive_mask) { |
529 | n_currents = rdev->desc->n_current_limits; |
530 | if (n_currents == 0) |
531 | return -EINVAL; |
532 | |
533 | if (max_uA > rdev->desc->curr_table[n_currents - 1]) |
534 | return da9063_buck_set_limit_set_overdrive(rdev, min_uA, |
535 | max_uA, |
536 | overdrive_mask); |
537 | |
538 | return da9063_buck_set_limit_clear_overdrive(rdev, min_uA, |
539 | max_uA, |
540 | overdrive_mask); |
541 | } |
542 | return regulator_set_current_limit_regmap(rdev, min_uA, max_uA); |
543 | } |
544 | |
545 | static int da9063_buck_get_current_limit(struct regulator_dev *rdev) |
546 | { |
547 | struct da9063_regulator *regl = rdev_get_drvdata(rdev); |
548 | int val, ret, limit; |
549 | unsigned int mask; |
550 | |
551 | limit = regulator_get_current_limit_regmap(rdev); |
552 | if (limit < 0) |
553 | return limit; |
554 | mask = da9063_get_overdrive_mask(desc: rdev->desc); |
555 | if (mask) { |
556 | ret = regmap_read(map: regl->hw->regmap, DA9063_REG_CONFIG_H, val: &val); |
557 | if (ret < 0) |
558 | return ret; |
559 | if (val & mask) |
560 | limit *= 2; |
561 | } |
562 | return limit; |
563 | } |
564 | |
565 | static const struct regulator_ops da9063_buck_ops = { |
566 | .enable = regulator_enable_regmap, |
567 | .disable = regulator_disable_regmap, |
568 | .is_enabled = regulator_is_enabled_regmap, |
569 | .get_voltage_sel = regulator_get_voltage_sel_regmap, |
570 | .set_voltage_sel = regulator_set_voltage_sel_regmap, |
571 | .list_voltage = regulator_list_voltage_linear, |
572 | .set_current_limit = da9063_buck_set_current_limit, |
573 | .get_current_limit = da9063_buck_get_current_limit, |
574 | .set_mode = da9063_buck_set_mode, |
575 | .get_mode = da9063_buck_get_mode, |
576 | .get_status = da9063_buck_get_status, |
577 | .set_suspend_voltage = da9063_set_suspend_voltage, |
578 | .set_suspend_enable = da9063_suspend_enable, |
579 | .set_suspend_disable = da9063_suspend_disable, |
580 | .set_suspend_mode = da9063_buck_set_suspend_mode, |
581 | .set_over_voltage_protection = da9063_set_xvp, |
582 | .set_under_voltage_protection = da9063_set_xvp, |
583 | }; |
584 | |
585 | static const struct regulator_ops da9063_ldo_ops = { |
586 | .enable = regulator_enable_regmap, |
587 | .disable = regulator_disable_regmap, |
588 | .is_enabled = regulator_is_enabled_regmap, |
589 | .get_voltage_sel = regulator_get_voltage_sel_regmap, |
590 | .set_voltage_sel = regulator_set_voltage_sel_regmap, |
591 | .list_voltage = regulator_list_voltage_linear, |
592 | .set_mode = da9063_ldo_set_mode, |
593 | .get_mode = da9063_ldo_get_mode, |
594 | .get_status = da9063_ldo_get_status, |
595 | .set_suspend_voltage = da9063_set_suspend_voltage, |
596 | .set_suspend_enable = da9063_suspend_enable, |
597 | .set_suspend_disable = da9063_suspend_disable, |
598 | .set_suspend_mode = da9063_ldo_set_suspend_mode, |
599 | .set_over_voltage_protection = da9063_set_xvp, |
600 | .set_under_voltage_protection = da9063_set_xvp, |
601 | }; |
602 | |
603 | /* Info of regulators for DA9063 */ |
604 | static const struct da9063_regulator_info da9063_regulator_info[] = { |
605 | { |
606 | DA9063_BUCK(DA9063, BCORE1, 300, 10, 1570, |
607 | da9063_buck_a_limits, |
608 | DA9063_REG_BUCK_ILIM_C, DA9063_BCORE1_ILIM_MASK), |
609 | DA9063_BUCK_COMMON_FIELDS(BCORE1), |
610 | .vmon = BFIELD(DA9063_BB_REG_MON_REG_4, DA9063_BCORE1_MON_EN), |
611 | }, |
612 | { |
613 | DA9063_BUCK(DA9063, BCORE2, 300, 10, 1570, |
614 | da9063_buck_a_limits, |
615 | DA9063_REG_BUCK_ILIM_C, DA9063_BCORE2_ILIM_MASK), |
616 | DA9063_BUCK_COMMON_FIELDS(BCORE2), |
617 | .vmon = BFIELD(DA9063_BB_REG_MON_REG_4, DA9063_BCORE2_MON_EN), |
618 | }, |
619 | { |
620 | DA9063_BUCK(DA9063, BPRO, 530, 10, 1800, |
621 | da9063_buck_a_limits, |
622 | DA9063_REG_BUCK_ILIM_B, DA9063_BPRO_ILIM_MASK), |
623 | DA9063_BUCK_COMMON_FIELDS(BPRO), |
624 | .vmon = BFIELD(DA9063_BB_REG_MON_REG_4, DA9063_BPRO_MON_EN), |
625 | }, |
626 | { |
627 | DA9063_BUCK(DA9063, BMEM, 800, 20, 3340, |
628 | da9063_buck_b_limits, |
629 | DA9063_REG_BUCK_ILIM_A, DA9063_BMEM_ILIM_MASK), |
630 | DA9063_BUCK_COMMON_FIELDS(BMEM), |
631 | .vmon = BFIELD(DA9063_BB_REG_MON_REG_4, DA9063_BMEM_MON_EN), |
632 | }, |
633 | { |
634 | DA9063_BUCK(DA9063, BIO, 800, 20, 3340, |
635 | da9063_buck_b_limits, |
636 | DA9063_REG_BUCK_ILIM_A, DA9063_BIO_ILIM_MASK), |
637 | DA9063_BUCK_COMMON_FIELDS(BIO), |
638 | .vmon = BFIELD(DA9063_BB_REG_MON_REG_4, DA9063_BIO_MON_EN), |
639 | }, |
640 | { |
641 | DA9063_BUCK(DA9063, BPERI, 800, 20, 3340, |
642 | da9063_buck_b_limits, |
643 | DA9063_REG_BUCK_ILIM_B, DA9063_BPERI_ILIM_MASK), |
644 | DA9063_BUCK_COMMON_FIELDS(BPERI), |
645 | .vmon = BFIELD(DA9063_BB_REG_MON_REG_4, DA9063_BPERI_MON_EN), |
646 | }, |
647 | { |
648 | DA9063_BUCK(DA9063, BCORES_MERGED, 300, 10, 1570, |
649 | da9063_bcores_merged_limits, |
650 | DA9063_REG_BUCK_ILIM_C, DA9063_BCORE1_ILIM_MASK), |
651 | /* BCORES_MERGED uses the same register fields as BCORE1 */ |
652 | DA9063_BUCK_COMMON_FIELDS(BCORE1), |
653 | .vmon = BFIELD(DA9063_BB_REG_MON_REG_4, DA9063_BCORE1_MON_EN), |
654 | }, |
655 | { |
656 | DA9063_BUCK(DA9063, BMEM_BIO_MERGED, 800, 20, 3340, |
657 | da9063_bmem_bio_merged_limits, |
658 | DA9063_REG_BUCK_ILIM_A, DA9063_BMEM_ILIM_MASK), |
659 | /* BMEM_BIO_MERGED uses the same register fields as BMEM */ |
660 | DA9063_BUCK_COMMON_FIELDS(BMEM), |
661 | .vmon = BFIELD(DA9063_BB_REG_MON_REG_4, DA9063_BMEM_MON_EN), |
662 | }, |
663 | { |
664 | DA9063_LDO(DA9063, LDO3, 900, 20, 3440), |
665 | .oc_event = BFIELD(DA9063_REG_STATUS_D, DA9063_LDO3_LIM), |
666 | .vmon = BFIELD(DA9063_BB_REG_MON_REG_2, DA9063_LDO3_MON_EN), |
667 | }, |
668 | { |
669 | DA9063_LDO(DA9063, LDO7, 900, 50, 3600), |
670 | .oc_event = BFIELD(DA9063_REG_STATUS_D, DA9063_LDO7_LIM), |
671 | .vmon = BFIELD(DA9063_BB_REG_MON_REG_2, DA9063_LDO7_MON_EN), |
672 | }, |
673 | { |
674 | DA9063_LDO(DA9063, LDO8, 900, 50, 3600), |
675 | .oc_event = BFIELD(DA9063_REG_STATUS_D, DA9063_LDO8_LIM), |
676 | .vmon = BFIELD(DA9063_BB_REG_MON_REG_2, DA9063_LDO8_MON_EN), |
677 | }, |
678 | { |
679 | DA9063_LDO(DA9063, LDO9, 950, 50, 3600), |
680 | .vmon = BFIELD(DA9063_BB_REG_MON_REG_3, DA9063_LDO9_MON_EN), |
681 | }, |
682 | { |
683 | DA9063_LDO(DA9063, LDO11, 900, 50, 3600), |
684 | .oc_event = BFIELD(DA9063_REG_STATUS_D, DA9063_LDO11_LIM), |
685 | .vmon = BFIELD(DA9063_BB_REG_MON_REG_3, DA9063_LDO11_MON_EN), |
686 | }, |
687 | |
688 | /* The following LDOs are present only on DA9063, not on DA9063L */ |
689 | { |
690 | DA9063_LDO(DA9063, LDO1, 600, 20, 1860), |
691 | .vmon = BFIELD(DA9063_BB_REG_MON_REG_2, DA9063_LDO1_MON_EN), |
692 | }, |
693 | { |
694 | DA9063_LDO(DA9063, LDO2, 600, 20, 1860), |
695 | .vmon = BFIELD(DA9063_BB_REG_MON_REG_2, DA9063_LDO2_MON_EN), |
696 | }, |
697 | { |
698 | DA9063_LDO(DA9063, LDO4, 900, 20, 3440), |
699 | .oc_event = BFIELD(DA9063_REG_STATUS_D, DA9063_LDO4_LIM), |
700 | .vmon = BFIELD(DA9063_BB_REG_MON_REG_2, DA9063_LDO4_MON_EN), |
701 | }, |
702 | { |
703 | DA9063_LDO(DA9063, LDO5, 900, 50, 3600), |
704 | .vmon = BFIELD(DA9063_BB_REG_MON_REG_2, DA9063_LDO5_MON_EN), |
705 | }, |
706 | { |
707 | DA9063_LDO(DA9063, LDO6, 900, 50, 3600), |
708 | .vmon = BFIELD(DA9063_BB_REG_MON_REG_2, DA9063_LDO6_MON_EN), |
709 | }, |
710 | |
711 | { |
712 | DA9063_LDO(DA9063, LDO10, 900, 50, 3600), |
713 | .vmon = BFIELD(DA9063_BB_REG_MON_REG_3, DA9063_LDO10_MON_EN), |
714 | }, |
715 | }; |
716 | |
717 | /* Link chip model with regulators info table */ |
718 | static struct da9063_dev_model regulators_models[] = { |
719 | { |
720 | .regulator_info = da9063_regulator_info, |
721 | .n_regulators = ARRAY_SIZE(da9063_regulator_info), |
722 | .type = PMIC_TYPE_DA9063, |
723 | }, |
724 | { |
725 | .regulator_info = da9063_regulator_info, |
726 | .n_regulators = ARRAY_SIZE(da9063_regulator_info) - 6, |
727 | .type = PMIC_TYPE_DA9063L, |
728 | }, |
729 | { } |
730 | }; |
731 | |
732 | /* Regulator interrupt handlers */ |
733 | static irqreturn_t da9063_ldo_lim_event(int irq, void *data) |
734 | { |
735 | struct da9063_regulators *regulators = data; |
736 | struct da9063 *hw = regulators->regulator[0].hw; |
737 | struct da9063_regulator *regl; |
738 | int bits, i, ret; |
739 | |
740 | ret = regmap_read(map: hw->regmap, DA9063_REG_STATUS_D, val: &bits); |
741 | if (ret < 0) |
742 | return IRQ_NONE; |
743 | |
744 | for (i = regulators->n_regulators - 1; i >= 0; i--) { |
745 | regl = ®ulators->regulator[i]; |
746 | if (regl->info->oc_event.reg != DA9063_REG_STATUS_D) |
747 | continue; |
748 | |
749 | if (BIT(regl->info->oc_event.lsb) & bits) { |
750 | regulator_notifier_call_chain(rdev: regl->rdev, |
751 | REGULATOR_EVENT_OVER_CURRENT, NULL); |
752 | } |
753 | } |
754 | |
755 | return IRQ_HANDLED; |
756 | } |
757 | |
758 | /* |
759 | * Probing and Initialisation functions |
760 | */ |
761 | static const struct regulator_init_data *da9063_get_regulator_initdata( |
762 | const struct da9063_regulators_pdata *regl_pdata, int id) |
763 | { |
764 | int i; |
765 | |
766 | for (i = 0; i < regl_pdata->n_regulators; i++) { |
767 | if (id == regl_pdata->regulator_data[i].id) |
768 | return regl_pdata->regulator_data[i].initdata; |
769 | } |
770 | |
771 | return NULL; |
772 | } |
773 | |
774 | static int da9063_check_xvp_constraints(struct regulator_config *config) |
775 | { |
776 | struct da9063_regulator *regl = config->driver_data; |
777 | const struct regulation_constraints *constr = &config->init_data->constraints; |
778 | const struct notification_limit *uv_l = &constr->under_voltage_limits; |
779 | const struct notification_limit *ov_l = &constr->over_voltage_limits; |
780 | |
781 | /* make sure that only one severity is used to clarify if unchanged, enabled or disabled */ |
782 | if ((!!uv_l->prot + !!uv_l->err + !!uv_l->warn) > 1) { |
783 | dev_err(config->dev, "%s: at most one voltage monitoring severity allowed!\n" , |
784 | regl->desc.name); |
785 | return -EINVAL; |
786 | } |
787 | |
788 | /* make sure that UV and OV monitoring is set to the same severity and value */ |
789 | if (uv_l->prot != ov_l->prot) { |
790 | dev_err(config->dev, |
791 | "%s: protection-microvolt: value must be equal for uv and ov!\n" , |
792 | regl->desc.name); |
793 | return -EINVAL; |
794 | } |
795 | if (uv_l->err != ov_l->err) { |
796 | dev_err(config->dev, "%s: error-microvolt: value must be equal for uv and ov!\n" , |
797 | regl->desc.name); |
798 | return -EINVAL; |
799 | } |
800 | if (uv_l->warn != ov_l->warn) { |
801 | dev_err(config->dev, "%s: warn-microvolt: value must be equal for uv and ov!\n" , |
802 | regl->desc.name); |
803 | return -EINVAL; |
804 | } |
805 | |
806 | return 0; |
807 | } |
808 | |
809 | static struct of_regulator_match da9063_matches[] = { |
810 | [DA9063_ID_BCORE1] = { .name = "bcore1" }, |
811 | [DA9063_ID_BCORE2] = { .name = "bcore2" }, |
812 | [DA9063_ID_BPRO] = { .name = "bpro" , }, |
813 | [DA9063_ID_BMEM] = { .name = "bmem" , }, |
814 | [DA9063_ID_BIO] = { .name = "bio" , }, |
815 | [DA9063_ID_BPERI] = { .name = "bperi" , }, |
816 | [DA9063_ID_BCORES_MERGED] = { .name = "bcores-merged" }, |
817 | [DA9063_ID_BMEM_BIO_MERGED] = { .name = "bmem-bio-merged" , }, |
818 | [DA9063_ID_LDO3] = { .name = "ldo3" , }, |
819 | [DA9063_ID_LDO7] = { .name = "ldo7" , }, |
820 | [DA9063_ID_LDO8] = { .name = "ldo8" , }, |
821 | [DA9063_ID_LDO9] = { .name = "ldo9" , }, |
822 | [DA9063_ID_LDO11] = { .name = "ldo11" , }, |
823 | /* The following LDOs are present only on DA9063, not on DA9063L */ |
824 | [DA9063_ID_LDO1] = { .name = "ldo1" , }, |
825 | [DA9063_ID_LDO2] = { .name = "ldo2" , }, |
826 | [DA9063_ID_LDO4] = { .name = "ldo4" , }, |
827 | [DA9063_ID_LDO5] = { .name = "ldo5" , }, |
828 | [DA9063_ID_LDO6] = { .name = "ldo6" , }, |
829 | [DA9063_ID_LDO10] = { .name = "ldo10" , }, |
830 | }; |
831 | |
832 | static struct da9063_regulators_pdata *da9063_parse_regulators_dt( |
833 | struct platform_device *pdev, |
834 | struct of_regulator_match **da9063_reg_matches) |
835 | { |
836 | struct da9063 *da9063 = dev_get_drvdata(dev: pdev->dev.parent); |
837 | struct da9063_regulators_pdata *pdata; |
838 | struct da9063_regulator_data *rdata; |
839 | struct device_node *node; |
840 | int da9063_matches_len = ARRAY_SIZE(da9063_matches); |
841 | int i, n, num; |
842 | |
843 | if (da9063->type == PMIC_TYPE_DA9063L) |
844 | da9063_matches_len -= 6; |
845 | |
846 | node = of_get_child_by_name(node: pdev->dev.parent->of_node, name: "regulators" ); |
847 | if (!node) { |
848 | dev_err(&pdev->dev, "Regulators device node not found\n" ); |
849 | return ERR_PTR(error: -ENODEV); |
850 | } |
851 | |
852 | num = of_regulator_match(dev: &pdev->dev, node, matches: da9063_matches, |
853 | num_matches: da9063_matches_len); |
854 | of_node_put(node); |
855 | if (num < 0) { |
856 | dev_err(&pdev->dev, "Failed to match regulators\n" ); |
857 | return ERR_PTR(error: -EINVAL); |
858 | } |
859 | |
860 | pdata = devm_kzalloc(dev: &pdev->dev, size: sizeof(*pdata), GFP_KERNEL); |
861 | if (!pdata) |
862 | return ERR_PTR(error: -ENOMEM); |
863 | |
864 | pdata->regulator_data = devm_kcalloc(dev: &pdev->dev, |
865 | n: num, size: sizeof(*pdata->regulator_data), |
866 | GFP_KERNEL); |
867 | if (!pdata->regulator_data) |
868 | return ERR_PTR(error: -ENOMEM); |
869 | pdata->n_regulators = num; |
870 | |
871 | n = 0; |
872 | for (i = 0; i < da9063_matches_len; i++) { |
873 | if (!da9063_matches[i].init_data) |
874 | continue; |
875 | |
876 | rdata = &pdata->regulator_data[n]; |
877 | rdata->id = i; |
878 | rdata->initdata = da9063_matches[i].init_data; |
879 | |
880 | n++; |
881 | } |
882 | |
883 | *da9063_reg_matches = da9063_matches; |
884 | return pdata; |
885 | } |
886 | |
887 | static int da9063_regulator_probe(struct platform_device *pdev) |
888 | { |
889 | struct da9063 *da9063 = dev_get_drvdata(dev: pdev->dev.parent); |
890 | struct of_regulator_match *da9063_reg_matches = NULL; |
891 | struct da9063_regulators_pdata *regl_pdata; |
892 | const struct da9063_dev_model *model; |
893 | struct da9063_regulators *regulators; |
894 | struct da9063_regulator *regl; |
895 | struct regulator_config config; |
896 | bool bcores_merged, bmem_bio_merged; |
897 | int id, irq, n, n_regulators, ret, val; |
898 | |
899 | regl_pdata = da9063_parse_regulators_dt(pdev, da9063_reg_matches: &da9063_reg_matches); |
900 | |
901 | if (IS_ERR(ptr: regl_pdata) || regl_pdata->n_regulators == 0) { |
902 | dev_err(&pdev->dev, |
903 | "No regulators defined for the platform\n" ); |
904 | return -ENODEV; |
905 | } |
906 | |
907 | /* Find regulators set for particular device model */ |
908 | for (model = regulators_models; model->regulator_info; model++) { |
909 | if (model->type == da9063->type) |
910 | break; |
911 | } |
912 | if (!model->regulator_info) { |
913 | dev_err(&pdev->dev, "Chip model not recognised (%u)\n" , |
914 | da9063->type); |
915 | return -ENODEV; |
916 | } |
917 | |
918 | ret = regmap_read(map: da9063->regmap, DA9063_REG_CONFIG_H, val: &val); |
919 | if (ret < 0) { |
920 | dev_err(&pdev->dev, |
921 | "Error while reading BUCKs configuration\n" ); |
922 | return ret; |
923 | } |
924 | bcores_merged = val & DA9063_BCORE_MERGE; |
925 | bmem_bio_merged = val & DA9063_BUCK_MERGE; |
926 | |
927 | n_regulators = model->n_regulators; |
928 | if (bcores_merged) |
929 | n_regulators -= 2; /* remove BCORE1, BCORE2 */ |
930 | else |
931 | n_regulators--; /* remove BCORES_MERGED */ |
932 | if (bmem_bio_merged) |
933 | n_regulators -= 2; /* remove BMEM, BIO */ |
934 | else |
935 | n_regulators--; /* remove BMEM_BIO_MERGED */ |
936 | |
937 | /* Allocate memory required by usable regulators */ |
938 | regulators = devm_kzalloc(dev: &pdev->dev, struct_size(regulators, |
939 | regulator, n_regulators), GFP_KERNEL); |
940 | if (!regulators) |
941 | return -ENOMEM; |
942 | |
943 | regulators->n_regulators = n_regulators; |
944 | platform_set_drvdata(pdev, data: regulators); |
945 | |
946 | /* Register all regulators declared in platform information */ |
947 | n = 0; |
948 | id = 0; |
949 | while (n < regulators->n_regulators) { |
950 | /* Skip regulator IDs depending on merge mode configuration */ |
951 | switch (id) { |
952 | case DA9063_ID_BCORE1: |
953 | case DA9063_ID_BCORE2: |
954 | if (bcores_merged) { |
955 | id++; |
956 | continue; |
957 | } |
958 | break; |
959 | case DA9063_ID_BMEM: |
960 | case DA9063_ID_BIO: |
961 | if (bmem_bio_merged) { |
962 | id++; |
963 | continue; |
964 | } |
965 | break; |
966 | case DA9063_ID_BCORES_MERGED: |
967 | if (!bcores_merged) { |
968 | id++; |
969 | continue; |
970 | } |
971 | break; |
972 | case DA9063_ID_BMEM_BIO_MERGED: |
973 | if (!bmem_bio_merged) { |
974 | id++; |
975 | continue; |
976 | } |
977 | break; |
978 | } |
979 | |
980 | /* Initialise regulator structure */ |
981 | regl = ®ulators->regulator[n]; |
982 | regl->hw = da9063; |
983 | regl->info = &model->regulator_info[id]; |
984 | regl->desc = regl->info->desc; |
985 | regl->desc.type = REGULATOR_VOLTAGE; |
986 | regl->desc.owner = THIS_MODULE; |
987 | |
988 | if (regl->info->mode.reg) { |
989 | regl->mode = devm_regmap_field_alloc(dev: &pdev->dev, |
990 | regmap: da9063->regmap, reg_field: regl->info->mode); |
991 | if (IS_ERR(ptr: regl->mode)) |
992 | return PTR_ERR(ptr: regl->mode); |
993 | } |
994 | |
995 | if (regl->info->suspend.reg) { |
996 | regl->suspend = devm_regmap_field_alloc(dev: &pdev->dev, |
997 | regmap: da9063->regmap, reg_field: regl->info->suspend); |
998 | if (IS_ERR(ptr: regl->suspend)) |
999 | return PTR_ERR(ptr: regl->suspend); |
1000 | } |
1001 | |
1002 | if (regl->info->sleep.reg) { |
1003 | regl->sleep = devm_regmap_field_alloc(dev: &pdev->dev, |
1004 | regmap: da9063->regmap, reg_field: regl->info->sleep); |
1005 | if (IS_ERR(ptr: regl->sleep)) |
1006 | return PTR_ERR(ptr: regl->sleep); |
1007 | } |
1008 | |
1009 | if (regl->info->suspend_sleep.reg) { |
1010 | regl->suspend_sleep = devm_regmap_field_alloc(dev: &pdev->dev, |
1011 | regmap: da9063->regmap, reg_field: regl->info->suspend_sleep); |
1012 | if (IS_ERR(ptr: regl->suspend_sleep)) |
1013 | return PTR_ERR(ptr: regl->suspend_sleep); |
1014 | } |
1015 | if (regl->info->vmon.reg) { |
1016 | regl->vmon = devm_regmap_field_alloc(dev: &pdev->dev, |
1017 | regmap: da9063->regmap, reg_field: regl->info->vmon); |
1018 | if (IS_ERR(ptr: regl->vmon)) |
1019 | return PTR_ERR(ptr: regl->vmon); |
1020 | } |
1021 | |
1022 | /* Register regulator */ |
1023 | memset(&config, 0, sizeof(config)); |
1024 | config.dev = &pdev->dev; |
1025 | config.init_data = da9063_get_regulator_initdata(regl_pdata, id); |
1026 | config.driver_data = regl; |
1027 | if (da9063_reg_matches) |
1028 | config.of_node = da9063_reg_matches[id].of_node; |
1029 | config.regmap = da9063->regmap; |
1030 | |
1031 | /* Checking constraints requires init_data from DT. */ |
1032 | if (config.init_data) { |
1033 | ret = da9063_check_xvp_constraints(config: &config); |
1034 | if (ret) |
1035 | return ret; |
1036 | } |
1037 | |
1038 | regl->rdev = devm_regulator_register(dev: &pdev->dev, regulator_desc: ®l->desc, |
1039 | config: &config); |
1040 | if (IS_ERR(ptr: regl->rdev)) { |
1041 | dev_err(&pdev->dev, |
1042 | "Failed to register %s regulator\n" , |
1043 | regl->desc.name); |
1044 | return PTR_ERR(ptr: regl->rdev); |
1045 | } |
1046 | id++; |
1047 | n++; |
1048 | } |
1049 | |
1050 | /* LDOs overcurrent event support */ |
1051 | irq = platform_get_irq_byname(pdev, "LDO_LIM" ); |
1052 | if (irq < 0) |
1053 | return irq; |
1054 | |
1055 | ret = devm_request_threaded_irq(dev: &pdev->dev, irq, |
1056 | NULL, thread_fn: da9063_ldo_lim_event, |
1057 | IRQF_TRIGGER_LOW | IRQF_ONESHOT, |
1058 | devname: "LDO_LIM" , dev_id: regulators); |
1059 | if (ret) |
1060 | dev_err(&pdev->dev, "Failed to request LDO_LIM IRQ.\n" ); |
1061 | |
1062 | return ret; |
1063 | } |
1064 | |
1065 | static struct platform_driver da9063_regulator_driver = { |
1066 | .driver = { |
1067 | .name = DA9063_DRVNAME_REGULATORS, |
1068 | .probe_type = PROBE_PREFER_ASYNCHRONOUS, |
1069 | }, |
1070 | .probe = da9063_regulator_probe, |
1071 | }; |
1072 | |
1073 | static int __init da9063_regulator_init(void) |
1074 | { |
1075 | return platform_driver_register(&da9063_regulator_driver); |
1076 | } |
1077 | subsys_initcall(da9063_regulator_init); |
1078 | |
1079 | static void __exit da9063_regulator_cleanup(void) |
1080 | { |
1081 | platform_driver_unregister(&da9063_regulator_driver); |
1082 | } |
1083 | module_exit(da9063_regulator_cleanup); |
1084 | |
1085 | |
1086 | /* Module information */ |
1087 | MODULE_AUTHOR("Krystian Garbaciak <krystian.garbaciak@diasemi.com>" ); |
1088 | MODULE_DESCRIPTION("DA9063 regulators driver" ); |
1089 | MODULE_LICENSE("GPL" ); |
1090 | MODULE_ALIAS("platform:" DA9063_DRVNAME_REGULATORS); |
1091 | |