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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
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
31enum {
32
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
41 DA9063_ID_BCORES_MERGED,
42
43 DA9063_ID_BMEM_BIO_MERGED,
44
45
46
47 DA9063_ID_LDO3,
48 DA9063_ID_LDO7,
49 DA9063_ID_LDO8,
50 DA9063_ID_LDO9,
51 DA9063_ID_LDO11,
52
53
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
63struct da9063_regulator_data {
64 int id;
65 struct regulator_init_data *initdata;
66};
67
68struct da9063_regulators_pdata {
69 unsigned n_regulators;
70 struct da9063_regulator_data *regulator_data;
71};
72
73
74struct da9063_regulator_info {
75 struct regulator_desc desc;
76
77
78 struct reg_field mode;
79 struct reg_field suspend;
80 struct reg_field sleep;
81 struct reg_field suspend_sleep;
82 unsigned int suspend_vsel_reg;
83
84
85 struct reg_field oc_event;
86};
87
88
89#define DA9063_LDO(chip, regl_name, min_mV, step_mV, max_mV) \
90 .desc.id = chip##_ID_##regl_name, \
91 .desc.name = __stringify(chip##_##regl_name), \
92 .desc.ops = &da9063_ldo_ops, \
93 .desc.min_uV = (min_mV) * 1000, \
94 .desc.uV_step = (step_mV) * 1000, \
95 .desc.n_voltages = (((max_mV) - (min_mV))/(step_mV) + 1 \
96 + (DA9063_V##regl_name##_BIAS)), \
97 .desc.enable_reg = DA9063_REG_##regl_name##_CONT, \
98 .desc.enable_mask = DA9063_LDO_EN, \
99 .desc.vsel_reg = DA9063_REG_V##regl_name##_A, \
100 .desc.vsel_mask = DA9063_V##regl_name##_MASK, \
101 .desc.linear_min_sel = DA9063_V##regl_name##_BIAS, \
102 .sleep = BFIELD(DA9063_REG_V##regl_name##_A, DA9063_LDO_SL), \
103 .suspend_sleep = BFIELD(DA9063_REG_V##regl_name##_B, DA9063_LDO_SL), \
104 .suspend_vsel_reg = DA9063_REG_V##regl_name##_B
105
106
107#define DA9063_BUCK(chip, regl_name, min_mV, step_mV, max_mV, limits_array, \
108 creg, cmask) \
109 .desc.id = chip##_ID_##regl_name, \
110 .desc.name = __stringify(chip##_##regl_name), \
111 .desc.ops = &da9063_buck_ops, \
112 .desc.min_uV = (min_mV) * 1000, \
113 .desc.uV_step = (step_mV) * 1000, \
114 .desc.n_voltages = ((max_mV) - (min_mV))/(step_mV) + 1, \
115 .desc.csel_reg = (creg), \
116 .desc.csel_mask = (cmask), \
117 .desc.curr_table = limits_array, \
118 .desc.n_current_limits = ARRAY_SIZE(limits_array)
119
120#define DA9063_BUCK_COMMON_FIELDS(regl_name) \
121 .desc.enable_reg = DA9063_REG_##regl_name##_CONT, \
122 .desc.enable_mask = DA9063_BUCK_EN, \
123 .desc.vsel_reg = DA9063_REG_V##regl_name##_A, \
124 .desc.vsel_mask = DA9063_VBUCK_MASK, \
125 .desc.linear_min_sel = DA9063_VBUCK_BIAS, \
126 .sleep = BFIELD(DA9063_REG_V##regl_name##_A, DA9063_BUCK_SL), \
127 .suspend_sleep = BFIELD(DA9063_REG_V##regl_name##_B, DA9063_BUCK_SL), \
128 .suspend_vsel_reg = DA9063_REG_V##regl_name##_B, \
129 .mode = BFIELD(DA9063_REG_##regl_name##_CFG, DA9063_BUCK_MODE_MASK)
130
131
132struct da9063_dev_model {
133 const struct da9063_regulator_info *regulator_info;
134 unsigned n_regulators;
135 enum da9063_type type;
136};
137
138
139struct da9063_regulator {
140 struct regulator_desc desc;
141 struct regulator_dev *rdev;
142 struct da9063 *hw;
143 const struct da9063_regulator_info *info;
144
145 struct regmap_field *mode;
146 struct regmap_field *suspend;
147 struct regmap_field *sleep;
148 struct regmap_field *suspend_sleep;
149};
150
151
152struct da9063_regulators {
153 unsigned n_regulators;
154
155 struct da9063_regulator regulator[0];
156};
157
158
159enum {
160 BUCK_MODE_MANUAL,
161 BUCK_MODE_SLEEP,
162 BUCK_MODE_SYNC,
163 BUCK_MODE_AUTO
164};
165
166
167
168
169
170static const unsigned int da9063_buck_a_limits[] = {
171 500000, 600000, 700000, 800000, 900000, 1000000, 1100000, 1200000,
172 1300000, 1400000, 1500000, 1600000, 1700000, 1800000, 1900000, 2000000
173};
174
175
176
177static const unsigned int da9063_buck_b_limits[] = {
178 1500000, 1600000, 1700000, 1800000, 1900000, 2000000, 2100000, 2200000,
179 2300000, 2400000, 2500000, 2600000, 2700000, 2800000, 2900000, 3000000
180};
181
182
183
184static const unsigned int da9063_bcores_merged_limits[] = {
185 1000000, 1200000, 1400000, 1600000, 1800000, 2000000, 2200000, 2400000,
186 2600000, 2800000, 3000000, 3200000, 3400000, 3600000, 3800000, 4000000
187};
188
189
190
191static const unsigned int da9063_bmem_bio_merged_limits[] = {
192 3000000, 3200000, 3400000, 3600000, 3800000, 4000000, 4200000, 4400000,
193 4600000, 4800000, 5000000, 5200000, 5400000, 5600000, 5800000, 6000000
194};
195
196static int da9063_buck_set_mode(struct regulator_dev *rdev, unsigned mode)
197{
198 struct da9063_regulator *regl = rdev_get_drvdata(rdev);
199 unsigned val;
200
201 switch (mode) {
202 case REGULATOR_MODE_FAST:
203 val = BUCK_MODE_SYNC;
204 break;
205 case REGULATOR_MODE_NORMAL:
206 val = BUCK_MODE_AUTO;
207 break;
208 case REGULATOR_MODE_STANDBY:
209 val = BUCK_MODE_SLEEP;
210 break;
211 default:
212 return -EINVAL;
213 }
214
215 return regmap_field_write(regl->mode, val);
216}
217
218
219
220
221
222
223
224static unsigned da9063_buck_get_mode(struct regulator_dev *rdev)
225{
226 struct da9063_regulator *regl = rdev_get_drvdata(rdev);
227 struct regmap_field *field;
228 unsigned int val, mode = 0;
229 int ret;
230
231 ret = regmap_field_read(regl->mode, &val);
232 if (ret < 0)
233 return ret;
234
235 switch (val) {
236 default:
237 case BUCK_MODE_MANUAL:
238 mode = REGULATOR_MODE_FAST | REGULATOR_MODE_STANDBY;
239
240 break;
241 case BUCK_MODE_SLEEP:
242 return REGULATOR_MODE_STANDBY;
243 case BUCK_MODE_SYNC:
244 return REGULATOR_MODE_FAST;
245 case BUCK_MODE_AUTO:
246 return REGULATOR_MODE_NORMAL;
247 }
248
249
250 ret = regmap_field_read(regl->suspend, &val);
251 if (ret < 0)
252 return 0;
253
254
255 if (val)
256 field = regl->suspend_sleep;
257 else
258 field = regl->sleep;
259
260 ret = regmap_field_read(field, &val);
261 if (ret < 0)
262 return 0;
263
264 if (val)
265 mode &= REGULATOR_MODE_STANDBY;
266 else
267 mode &= REGULATOR_MODE_NORMAL | REGULATOR_MODE_FAST;
268
269 return mode;
270}
271
272
273
274
275
276
277static int da9063_ldo_set_mode(struct regulator_dev *rdev, unsigned mode)
278{
279 struct da9063_regulator *regl = rdev_get_drvdata(rdev);
280 unsigned val;
281
282 switch (mode) {
283 case REGULATOR_MODE_NORMAL:
284 val = 0;
285 break;
286 case REGULATOR_MODE_STANDBY:
287 val = 1;
288 break;
289 default:
290 return -EINVAL;
291 }
292
293 return regmap_field_write(regl->sleep, val);
294}
295
296static unsigned da9063_ldo_get_mode(struct regulator_dev *rdev)
297{
298 struct da9063_regulator *regl = rdev_get_drvdata(rdev);
299 struct regmap_field *field;
300 int ret, val;
301
302
303 ret = regmap_field_read(regl->suspend, &val);
304 if (ret < 0)
305 return 0;
306
307
308 if (val)
309 field = regl->suspend_sleep;
310 else
311 field = regl->sleep;
312
313 ret = regmap_field_read(field, &val);
314 if (ret < 0)
315 return 0;
316
317 if (val)
318 return REGULATOR_MODE_STANDBY;
319 else
320 return REGULATOR_MODE_NORMAL;
321}
322
323static int da9063_buck_get_status(struct regulator_dev *rdev)
324{
325 int ret = regulator_is_enabled_regmap(rdev);
326
327 if (ret == 0) {
328 ret = REGULATOR_STATUS_OFF;
329 } else if (ret > 0) {
330 ret = da9063_buck_get_mode(rdev);
331 if (ret > 0)
332 ret = regulator_mode_to_status(ret);
333 else if (ret == 0)
334 ret = -EIO;
335 }
336
337 return ret;
338}
339
340static int da9063_ldo_get_status(struct regulator_dev *rdev)
341{
342 int ret = regulator_is_enabled_regmap(rdev);
343
344 if (ret == 0) {
345 ret = REGULATOR_STATUS_OFF;
346 } else if (ret > 0) {
347 ret = da9063_ldo_get_mode(rdev);
348 if (ret > 0)
349 ret = regulator_mode_to_status(ret);
350 else if (ret == 0)
351 ret = -EIO;
352 }
353
354 return ret;
355}
356
357static int da9063_set_suspend_voltage(struct regulator_dev *rdev, int uV)
358{
359 struct da9063_regulator *regl = rdev_get_drvdata(rdev);
360 const struct da9063_regulator_info *rinfo = regl->info;
361 int ret, sel;
362
363 sel = regulator_map_voltage_linear(rdev, uV, uV);
364 if (sel < 0)
365 return sel;
366
367 sel <<= ffs(rdev->desc->vsel_mask) - 1;
368
369 ret = regmap_update_bits(regl->hw->regmap, rinfo->suspend_vsel_reg,
370 rdev->desc->vsel_mask, sel);
371
372 return ret;
373}
374
375static int da9063_suspend_enable(struct regulator_dev *rdev)
376{
377 struct da9063_regulator *regl = rdev_get_drvdata(rdev);
378
379 return regmap_field_write(regl->suspend, 1);
380}
381
382static int da9063_suspend_disable(struct regulator_dev *rdev)
383{
384 struct da9063_regulator *regl = rdev_get_drvdata(rdev);
385
386 return regmap_field_write(regl->suspend, 0);
387}
388
389static int da9063_buck_set_suspend_mode(struct regulator_dev *rdev, unsigned mode)
390{
391 struct da9063_regulator *regl = rdev_get_drvdata(rdev);
392 int val;
393
394 switch (mode) {
395 case REGULATOR_MODE_FAST:
396 val = BUCK_MODE_SYNC;
397 break;
398 case REGULATOR_MODE_NORMAL:
399 val = BUCK_MODE_AUTO;
400 break;
401 case REGULATOR_MODE_STANDBY:
402 val = BUCK_MODE_SLEEP;
403 break;
404 default:
405 return -EINVAL;
406 }
407
408 return regmap_field_write(regl->mode, val);
409}
410
411static int da9063_ldo_set_suspend_mode(struct regulator_dev *rdev, unsigned mode)
412{
413 struct da9063_regulator *regl = rdev_get_drvdata(rdev);
414 unsigned val;
415
416 switch (mode) {
417 case REGULATOR_MODE_NORMAL:
418 val = 0;
419 break;
420 case REGULATOR_MODE_STANDBY:
421 val = 1;
422 break;
423 default:
424 return -EINVAL;
425 }
426
427 return regmap_field_write(regl->suspend_sleep, val);
428}
429
430static const struct regulator_ops da9063_buck_ops = {
431 .enable = regulator_enable_regmap,
432 .disable = regulator_disable_regmap,
433 .is_enabled = regulator_is_enabled_regmap,
434 .get_voltage_sel = regulator_get_voltage_sel_regmap,
435 .set_voltage_sel = regulator_set_voltage_sel_regmap,
436 .list_voltage = regulator_list_voltage_linear,
437 .set_current_limit = regulator_set_current_limit_regmap,
438 .get_current_limit = regulator_get_current_limit_regmap,
439 .set_mode = da9063_buck_set_mode,
440 .get_mode = da9063_buck_get_mode,
441 .get_status = da9063_buck_get_status,
442 .set_suspend_voltage = da9063_set_suspend_voltage,
443 .set_suspend_enable = da9063_suspend_enable,
444 .set_suspend_disable = da9063_suspend_disable,
445 .set_suspend_mode = da9063_buck_set_suspend_mode,
446};
447
448static const struct regulator_ops da9063_ldo_ops = {
449 .enable = regulator_enable_regmap,
450 .disable = regulator_disable_regmap,
451 .is_enabled = regulator_is_enabled_regmap,
452 .get_voltage_sel = regulator_get_voltage_sel_regmap,
453 .set_voltage_sel = regulator_set_voltage_sel_regmap,
454 .list_voltage = regulator_list_voltage_linear,
455 .set_mode = da9063_ldo_set_mode,
456 .get_mode = da9063_ldo_get_mode,
457 .get_status = da9063_ldo_get_status,
458 .set_suspend_voltage = da9063_set_suspend_voltage,
459 .set_suspend_enable = da9063_suspend_enable,
460 .set_suspend_disable = da9063_suspend_disable,
461 .set_suspend_mode = da9063_ldo_set_suspend_mode,
462};
463
464
465static const struct da9063_regulator_info da9063_regulator_info[] = {
466 {
467 DA9063_BUCK(DA9063, BCORE1, 300, 10, 1570,
468 da9063_buck_a_limits,
469 DA9063_REG_BUCK_ILIM_C, DA9063_BCORE1_ILIM_MASK),
470 DA9063_BUCK_COMMON_FIELDS(BCORE1),
471 .suspend = BFIELD(DA9063_REG_DVC_1, DA9063_VBCORE1_SEL),
472 },
473 {
474 DA9063_BUCK(DA9063, BCORE2, 300, 10, 1570,
475 da9063_buck_a_limits,
476 DA9063_REG_BUCK_ILIM_C, DA9063_BCORE2_ILIM_MASK),
477 DA9063_BUCK_COMMON_FIELDS(BCORE2),
478 .suspend = BFIELD(DA9063_REG_DVC_1, DA9063_VBCORE2_SEL),
479 },
480 {
481 DA9063_BUCK(DA9063, BPRO, 530, 10, 1800,
482 da9063_buck_a_limits,
483 DA9063_REG_BUCK_ILIM_B, DA9063_BPRO_ILIM_MASK),
484 DA9063_BUCK_COMMON_FIELDS(BPRO),
485 .suspend = BFIELD(DA9063_REG_DVC_1, DA9063_VBPRO_SEL),
486 },
487 {
488 DA9063_BUCK(DA9063, BMEM, 800, 20, 3340,
489 da9063_buck_b_limits,
490 DA9063_REG_BUCK_ILIM_A, DA9063_BMEM_ILIM_MASK),
491 DA9063_BUCK_COMMON_FIELDS(BMEM),
492 .suspend = BFIELD(DA9063_REG_DVC_1, DA9063_VBMEM_SEL),
493 },
494 {
495 DA9063_BUCK(DA9063, BIO, 800, 20, 3340,
496 da9063_buck_b_limits,
497 DA9063_REG_BUCK_ILIM_A, DA9063_BIO_ILIM_MASK),
498 DA9063_BUCK_COMMON_FIELDS(BIO),
499 .suspend = BFIELD(DA9063_REG_DVC_2, DA9063_VBIO_SEL),
500 },
501 {
502 DA9063_BUCK(DA9063, BPERI, 800, 20, 3340,
503 da9063_buck_b_limits,
504 DA9063_REG_BUCK_ILIM_B, DA9063_BPERI_ILIM_MASK),
505 DA9063_BUCK_COMMON_FIELDS(BPERI),
506 .suspend = BFIELD(DA9063_REG_DVC_1, DA9063_VBPERI_SEL),
507 },
508 {
509 DA9063_BUCK(DA9063, BCORES_MERGED, 300, 10, 1570,
510 da9063_bcores_merged_limits,
511 DA9063_REG_BUCK_ILIM_C, DA9063_BCORE1_ILIM_MASK),
512
513 DA9063_BUCK_COMMON_FIELDS(BCORE1),
514 .suspend = BFIELD(DA9063_REG_DVC_1, DA9063_VBCORE1_SEL),
515 },
516 {
517 DA9063_BUCK(DA9063, BMEM_BIO_MERGED, 800, 20, 3340,
518 da9063_bmem_bio_merged_limits,
519 DA9063_REG_BUCK_ILIM_A, DA9063_BMEM_ILIM_MASK),
520
521 DA9063_BUCK_COMMON_FIELDS(BMEM),
522 .suspend = BFIELD(DA9063_REG_DVC_1, DA9063_VBMEM_SEL),
523 },
524 {
525 DA9063_LDO(DA9063, LDO3, 900, 20, 3440),
526 .suspend = BFIELD(DA9063_REG_DVC_1, DA9063_VLDO3_SEL),
527 .oc_event = BFIELD(DA9063_REG_STATUS_D, DA9063_LDO3_LIM),
528 },
529 {
530 DA9063_LDO(DA9063, LDO7, 900, 50, 3600),
531 .suspend = BFIELD(DA9063_REG_LDO7_CONT, DA9063_VLDO7_SEL),
532 .oc_event = BFIELD(DA9063_REG_STATUS_D, DA9063_LDO7_LIM),
533 },
534 {
535 DA9063_LDO(DA9063, LDO8, 900, 50, 3600),
536 .suspend = BFIELD(DA9063_REG_LDO8_CONT, DA9063_VLDO8_SEL),
537 .oc_event = BFIELD(DA9063_REG_STATUS_D, DA9063_LDO8_LIM),
538 },
539 {
540 DA9063_LDO(DA9063, LDO9, 950, 50, 3600),
541 .suspend = BFIELD(DA9063_REG_LDO9_CONT, DA9063_VLDO9_SEL),
542 },
543 {
544 DA9063_LDO(DA9063, LDO11, 900, 50, 3600),
545 .suspend = BFIELD(DA9063_REG_LDO11_CONT, DA9063_VLDO11_SEL),
546 .oc_event = BFIELD(DA9063_REG_STATUS_D, DA9063_LDO11_LIM),
547 },
548
549
550 {
551 DA9063_LDO(DA9063, LDO1, 600, 20, 1860),
552 .suspend = BFIELD(DA9063_REG_DVC_1, DA9063_VLDO1_SEL),
553 },
554 {
555 DA9063_LDO(DA9063, LDO2, 600, 20, 1860),
556 .suspend = BFIELD(DA9063_REG_DVC_1, DA9063_VLDO2_SEL),
557 },
558 {
559 DA9063_LDO(DA9063, LDO4, 900, 20, 3440),
560 .suspend = BFIELD(DA9063_REG_DVC_2, DA9063_VLDO4_SEL),
561 .oc_event = BFIELD(DA9063_REG_STATUS_D, DA9063_LDO4_LIM),
562 },
563 {
564 DA9063_LDO(DA9063, LDO5, 900, 50, 3600),
565 .suspend = BFIELD(DA9063_REG_LDO5_CONT, DA9063_VLDO5_SEL),
566 },
567 {
568 DA9063_LDO(DA9063, LDO6, 900, 50, 3600),
569 .suspend = BFIELD(DA9063_REG_LDO6_CONT, DA9063_VLDO6_SEL),
570 },
571
572 {
573 DA9063_LDO(DA9063, LDO10, 900, 50, 3600),
574 .suspend = BFIELD(DA9063_REG_LDO10_CONT, DA9063_VLDO10_SEL),
575 },
576};
577
578
579static struct da9063_dev_model regulators_models[] = {
580 {
581 .regulator_info = da9063_regulator_info,
582 .n_regulators = ARRAY_SIZE(da9063_regulator_info),
583 .type = PMIC_TYPE_DA9063,
584 },
585 {
586 .regulator_info = da9063_regulator_info,
587 .n_regulators = ARRAY_SIZE(da9063_regulator_info) - 6,
588 .type = PMIC_TYPE_DA9063L,
589 },
590 { }
591};
592
593
594static irqreturn_t da9063_ldo_lim_event(int irq, void *data)
595{
596 struct da9063_regulators *regulators = data;
597 struct da9063 *hw = regulators->regulator[0].hw;
598 struct da9063_regulator *regl;
599 int bits, i , ret;
600
601 ret = regmap_read(hw->regmap, DA9063_REG_STATUS_D, &bits);
602 if (ret < 0)
603 return IRQ_NONE;
604
605 for (i = regulators->n_regulators - 1; i >= 0; i--) {
606 regl = ®ulators->regulator[i];
607 if (regl->info->oc_event.reg != DA9063_REG_STATUS_D)
608 continue;
609
610 if (BIT(regl->info->oc_event.lsb) & bits) {
611 regulator_lock(regl->rdev);
612 regulator_notifier_call_chain(regl->rdev,
613 REGULATOR_EVENT_OVER_CURRENT, NULL);
614 regulator_unlock(regl->rdev);
615 }
616 }
617
618 return IRQ_HANDLED;
619}
620
621
622
623
624static const struct regulator_init_data *da9063_get_regulator_initdata(
625 const struct da9063_regulators_pdata *regl_pdata, int id)
626{
627 int i;
628
629 for (i = 0; i < regl_pdata->n_regulators; i++) {
630 if (id == regl_pdata->regulator_data[i].id)
631 return regl_pdata->regulator_data[i].initdata;
632 }
633
634 return NULL;
635}
636
637static struct of_regulator_match da9063_matches[] = {
638 [DA9063_ID_BCORE1] = { .name = "bcore1" },
639 [DA9063_ID_BCORE2] = { .name = "bcore2" },
640 [DA9063_ID_BPRO] = { .name = "bpro", },
641 [DA9063_ID_BMEM] = { .name = "bmem", },
642 [DA9063_ID_BIO] = { .name = "bio", },
643 [DA9063_ID_BPERI] = { .name = "bperi", },
644 [DA9063_ID_BCORES_MERGED] = { .name = "bcores-merged" },
645 [DA9063_ID_BMEM_BIO_MERGED] = { .name = "bmem-bio-merged", },
646 [DA9063_ID_LDO3] = { .name = "ldo3", },
647 [DA9063_ID_LDO7] = { .name = "ldo7", },
648 [DA9063_ID_LDO8] = { .name = "ldo8", },
649 [DA9063_ID_LDO9] = { .name = "ldo9", },
650 [DA9063_ID_LDO11] = { .name = "ldo11", },
651
652 [DA9063_ID_LDO1] = { .name = "ldo1", },
653 [DA9063_ID_LDO2] = { .name = "ldo2", },
654 [DA9063_ID_LDO4] = { .name = "ldo4", },
655 [DA9063_ID_LDO5] = { .name = "ldo5", },
656 [DA9063_ID_LDO6] = { .name = "ldo6", },
657 [DA9063_ID_LDO10] = { .name = "ldo10", },
658};
659
660static struct da9063_regulators_pdata *da9063_parse_regulators_dt(
661 struct platform_device *pdev,
662 struct of_regulator_match **da9063_reg_matches)
663{
664 struct da9063 *da9063 = dev_get_drvdata(pdev->dev.parent);
665 struct da9063_regulators_pdata *pdata;
666 struct da9063_regulator_data *rdata;
667 struct device_node *node;
668 int da9063_matches_len = ARRAY_SIZE(da9063_matches);
669 int i, n, num;
670
671 if (da9063->type == PMIC_TYPE_DA9063L)
672 da9063_matches_len -= 6;
673
674 node = of_get_child_by_name(pdev->dev.parent->of_node, "regulators");
675 if (!node) {
676 dev_err(&pdev->dev, "Regulators device node not found\n");
677 return ERR_PTR(-ENODEV);
678 }
679
680 num = of_regulator_match(&pdev->dev, node, da9063_matches,
681 da9063_matches_len);
682 of_node_put(node);
683 if (num < 0) {
684 dev_err(&pdev->dev, "Failed to match regulators\n");
685 return ERR_PTR(-EINVAL);
686 }
687
688 pdata = devm_kzalloc(&pdev->dev, sizeof(*pdata), GFP_KERNEL);
689 if (!pdata)
690 return ERR_PTR(-ENOMEM);
691
692 pdata->regulator_data = devm_kcalloc(&pdev->dev,
693 num, sizeof(*pdata->regulator_data),
694 GFP_KERNEL);
695 if (!pdata->regulator_data)
696 return ERR_PTR(-ENOMEM);
697 pdata->n_regulators = num;
698
699 n = 0;
700 for (i = 0; i < da9063_matches_len; i++) {
701 if (!da9063_matches[i].init_data)
702 continue;
703
704 rdata = &pdata->regulator_data[n];
705 rdata->id = i;
706 rdata->initdata = da9063_matches[i].init_data;
707
708 n++;
709 }
710
711 *da9063_reg_matches = da9063_matches;
712 return pdata;
713}
714
715static int da9063_regulator_probe(struct platform_device *pdev)
716{
717 struct da9063 *da9063 = dev_get_drvdata(pdev->dev.parent);
718 struct of_regulator_match *da9063_reg_matches = NULL;
719 struct da9063_regulators_pdata *regl_pdata;
720 const struct da9063_dev_model *model;
721 struct da9063_regulators *regulators;
722 struct da9063_regulator *regl;
723 struct regulator_config config;
724 bool bcores_merged, bmem_bio_merged;
725 int id, irq, n, n_regulators, ret, val;
726
727 regl_pdata = da9063_parse_regulators_dt(pdev, &da9063_reg_matches);
728
729 if (IS_ERR(regl_pdata) || regl_pdata->n_regulators == 0) {
730 dev_err(&pdev->dev,
731 "No regulators defined for the platform\n");
732 return -ENODEV;
733 }
734
735
736 for (model = regulators_models; model->regulator_info; model++) {
737 if (model->type == da9063->type)
738 break;
739 }
740 if (!model->regulator_info) {
741 dev_err(&pdev->dev, "Chip model not recognised (%u)\n",
742 da9063->type);
743 return -ENODEV;
744 }
745
746 ret = regmap_read(da9063->regmap, DA9063_REG_CONFIG_H, &val);
747 if (ret < 0) {
748 dev_err(&pdev->dev,
749 "Error while reading BUCKs configuration\n");
750 return ret;
751 }
752 bcores_merged = val & DA9063_BCORE_MERGE;
753 bmem_bio_merged = val & DA9063_BUCK_MERGE;
754
755 n_regulators = model->n_regulators;
756 if (bcores_merged)
757 n_regulators -= 2;
758 else
759 n_regulators--;
760 if (bmem_bio_merged)
761 n_regulators -= 2;
762 else
763 n_regulators--;
764
765
766 regulators = devm_kzalloc(&pdev->dev, struct_size(regulators,
767 regulator, n_regulators), GFP_KERNEL);
768 if (!regulators)
769 return -ENOMEM;
770
771 regulators->n_regulators = n_regulators;
772 platform_set_drvdata(pdev, regulators);
773
774
775 n = 0;
776 id = 0;
777 while (n < regulators->n_regulators) {
778
779 switch (id) {
780 case DA9063_ID_BCORE1:
781 case DA9063_ID_BCORE2:
782 if (bcores_merged) {
783 id++;
784 continue;
785 }
786 break;
787 case DA9063_ID_BMEM:
788 case DA9063_ID_BIO:
789 if (bmem_bio_merged) {
790 id++;
791 continue;
792 }
793 break;
794 case DA9063_ID_BCORES_MERGED:
795 if (!bcores_merged) {
796 id++;
797 continue;
798 }
799 break;
800 case DA9063_ID_BMEM_BIO_MERGED:
801 if (!bmem_bio_merged) {
802 id++;
803 continue;
804 }
805 break;
806 }
807
808
809 regl = ®ulators->regulator[n];
810 regl->hw = da9063;
811 regl->info = &model->regulator_info[id];
812 regl->desc = regl->info->desc;
813 regl->desc.type = REGULATOR_VOLTAGE;
814 regl->desc.owner = THIS_MODULE;
815
816 if (regl->info->mode.reg) {
817 regl->mode = devm_regmap_field_alloc(&pdev->dev,
818 da9063->regmap, regl->info->mode);
819 if (IS_ERR(regl->mode))
820 return PTR_ERR(regl->mode);
821 }
822
823 if (regl->info->suspend.reg) {
824 regl->suspend = devm_regmap_field_alloc(&pdev->dev,
825 da9063->regmap, regl->info->suspend);
826 if (IS_ERR(regl->suspend))
827 return PTR_ERR(regl->suspend);
828 }
829
830 if (regl->info->sleep.reg) {
831 regl->sleep = devm_regmap_field_alloc(&pdev->dev,
832 da9063->regmap, regl->info->sleep);
833 if (IS_ERR(regl->sleep))
834 return PTR_ERR(regl->sleep);
835 }
836
837 if (regl->info->suspend_sleep.reg) {
838 regl->suspend_sleep = devm_regmap_field_alloc(&pdev->dev,
839 da9063->regmap, regl->info->suspend_sleep);
840 if (IS_ERR(regl->suspend_sleep))
841 return PTR_ERR(regl->suspend_sleep);
842 }
843
844
845 memset(&config, 0, sizeof(config));
846 config.dev = &pdev->dev;
847 config.init_data = da9063_get_regulator_initdata(regl_pdata, id);
848 config.driver_data = regl;
849 if (da9063_reg_matches)
850 config.of_node = da9063_reg_matches[id].of_node;
851 config.regmap = da9063->regmap;
852 regl->rdev = devm_regulator_register(&pdev->dev, ®l->desc,
853 &config);
854 if (IS_ERR(regl->rdev)) {
855 dev_err(&pdev->dev,
856 "Failed to register %s regulator\n",
857 regl->desc.name);
858 return PTR_ERR(regl->rdev);
859 }
860 id++;
861 n++;
862 }
863
864
865 irq = platform_get_irq_byname(pdev, "LDO_LIM");
866 if (irq < 0) {
867 dev_err(&pdev->dev, "Failed to get IRQ.\n");
868 return irq;
869 }
870
871 ret = devm_request_threaded_irq(&pdev->dev, irq,
872 NULL, da9063_ldo_lim_event,
873 IRQF_TRIGGER_LOW | IRQF_ONESHOT,
874 "LDO_LIM", regulators);
875 if (ret) {
876 dev_err(&pdev->dev, "Failed to request LDO_LIM IRQ.\n");
877 return ret;
878 }
879
880 return 0;
881}
882
883static struct platform_driver da9063_regulator_driver = {
884 .driver = {
885 .name = DA9063_DRVNAME_REGULATORS,
886 },
887 .probe = da9063_regulator_probe,
888};
889
890static int __init da9063_regulator_init(void)
891{
892 return platform_driver_register(&da9063_regulator_driver);
893}
894subsys_initcall(da9063_regulator_init);
895
896static void __exit da9063_regulator_cleanup(void)
897{
898 platform_driver_unregister(&da9063_regulator_driver);
899}
900module_exit(da9063_regulator_cleanup);
901
902
903
904MODULE_AUTHOR("Krystian Garbaciak <krystian.garbaciak@diasemi.com>");
905MODULE_DESCRIPTION("DA9063 regulators driver");
906MODULE_LICENSE("GPL");
907MODULE_ALIAS("platform:" DA9063_DRVNAME_REGULATORS);
908
