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treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 201
[linux-2.6-block.git] / drivers / regulator / da9062-regulator.c
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fd2f02f9
AL		 1// SPDX-License-Identifier: GPL-2.0+
2//
3// Regulator device driver for DA9061 and DA9062.
4// Copyright (C) 2015-2017 Dialog Semiconductor
5
4068e518
T		 6#include <linux/kernel.h>
7#include <linux/module.h>
8#include <linux/init.h>
9#include <linux/err.h>
10#include <linux/slab.h>
11#include <linux/of.h>
12#include <linux/platform_device.h>
13#include <linux/regmap.h>
14#include <linux/regulator/driver.h>
15#include <linux/regulator/machine.h>
16#include <linux/regulator/of_regulator.h>
17#include <linux/mfd/da9062/core.h>
18#include <linux/mfd/da9062/registers.h>
19
20/* Regulator IDs */
4b7f4958
ST		 21enum {
22 DA9061_ID_BUCK1,
23 DA9061_ID_BUCK2,
24 DA9061_ID_BUCK3,
25 DA9061_ID_LDO1,
26 DA9061_ID_LDO2,
27 DA9061_ID_LDO3,
28 DA9061_ID_LDO4,
29 DA9061_MAX_REGULATORS,
30};
31
4068e518
T		 32enum {
33 DA9062_ID_BUCK1,
34 DA9062_ID_BUCK2,
35 DA9062_ID_BUCK3,
36 DA9062_ID_BUCK4,
37 DA9062_ID_LDO1,
38 DA9062_ID_LDO2,
39 DA9062_ID_LDO3,
40 DA9062_ID_LDO4,
41 DA9062_MAX_REGULATORS,
42};
43
44/* Regulator capabilities and registers description */
45struct da9062_regulator_info {
46 struct regulator_desc desc;
4068e518
T		 47 /* Main register fields */
48 struct reg_field mode;
49 struct reg_field suspend;
50 struct reg_field sleep;
51 struct reg_field suspend_sleep;
52 unsigned int suspend_vsel_reg;
4068e518
T		 53 /* Event detection bit */
54 struct reg_field oc_event;
55};
56
57/* Single regulator settings */
58struct da9062_regulator {
59 struct regulator_desc desc;
60 struct regulator_dev *rdev;
61 struct da9062 *hw;
62 const struct da9062_regulator_info *info;
63
64 struct regmap_field *mode;
65 struct regmap_field *suspend;
66 struct regmap_field *sleep;
67 struct regmap_field *suspend_sleep;
4068e518
T		 68};
69
70/* Encapsulates all information for the regulators driver */
71struct da9062_regulators {
72 int irq_ldo_lim;
73 unsigned n_regulators;
74 /* Array size to be defined during init. Keep at end. */
75 struct da9062_regulator regulator[0];
76};
77
78/* BUCK modes */
79enum {
80 BUCK_MODE_MANUAL, /* 0 */
81 BUCK_MODE_SLEEP, /* 1 */
82 BUCK_MODE_SYNC, /* 2 */
83 BUCK_MODE_AUTO /* 3 */
84};
85
86/* Regulator operations */
87
4b7f4958
ST		 88/* Current limits array (in uA)
89 * - DA9061_ID_[BUCK1|BUCK3]
90 * - DA9062_ID_[BUCK1|BUCK2|BUCK4]
91 * Entry indexes corresponds to register values.
92 */
958e9b82 93static const unsigned int da9062_buck_a_limits[] = {
4068e518
T		 94 500000, 600000, 700000, 800000, 900000, 1000000, 1100000, 1200000,
95 1300000, 1400000, 1500000, 1600000, 1700000, 1800000, 1900000, 2000000
96};
97
4b7f4958
ST		 98/* Current limits array (in uA)
99 * - DA9061_ID_BUCK2
100 * - DA9062_ID_BUCK3
101 * Entry indexes corresponds to register values.
102 */
958e9b82 103static const unsigned int da9062_buck_b_limits[] = {
4068e518
T		 104 1500000, 1600000, 1700000, 1800000, 1900000, 2000000, 2100000, 2200000,
105 2300000, 2400000, 2500000, 2600000, 2700000, 2800000, 2900000, 3000000
106};
107
4068e518
T		 108static int da9062_buck_set_mode(struct regulator_dev *rdev, unsigned mode)
109{
110 struct da9062_regulator *regl = rdev_get_drvdata(rdev);
111 unsigned val;
112
113 switch (mode) {
114 case REGULATOR_MODE_FAST:
115 val = BUCK_MODE_SYNC;
116 break;
117 case REGULATOR_MODE_NORMAL:
118 val = BUCK_MODE_AUTO;
119 break;
120 case REGULATOR_MODE_STANDBY:
121 val = BUCK_MODE_SLEEP;
122 break;
123 default:
124 return -EINVAL;
125 }
126
127 return regmap_field_write(regl->mode, val);
128}
129
130/*
131 * Bucks use single mode register field for normal operation
132 * and suspend state.
133 * There are 3 modes to map to: FAST, NORMAL, and STANDBY.
134 */
135
136static unsigned da9062_buck_get_mode(struct regulator_dev *rdev)
137{
138 struct da9062_regulator *regl = rdev_get_drvdata(rdev);
139 struct regmap_field *field;
140 unsigned int val, mode = 0;
141 int ret;
142
143 ret = regmap_field_read(regl->mode, &val);
144 if (ret < 0)
145 return ret;
146
147 switch (val) {
148 default:
149 case BUCK_MODE_MANUAL:
150 mode = REGULATOR_MODE_FAST | REGULATOR_MODE_STANDBY;
151 /* Sleep flag bit decides the mode */
152 break;
153 case BUCK_MODE_SLEEP:
154 return REGULATOR_MODE_STANDBY;
155 case BUCK_MODE_SYNC:
156 return REGULATOR_MODE_FAST;
157 case BUCK_MODE_AUTO:
158 return REGULATOR_MODE_NORMAL;
159 }
160
161 /* Detect current regulator state */
162 ret = regmap_field_read(regl->suspend, &val);
163 if (ret < 0)
164 return 0;
165
166 /* Read regulator mode from proper register, depending on state */
167 if (val)
168 field = regl->suspend_sleep;
169 else
170 field = regl->sleep;
171
172 ret = regmap_field_read(field, &val);
173 if (ret < 0)
174 return 0;
175
176 if (val)
177 mode &= REGULATOR_MODE_STANDBY;
178 else
179 mode &= REGULATOR_MODE_NORMAL | REGULATOR_MODE_FAST;
180
181 return mode;
182}
183
184/*
185 * LDOs use sleep flags - one for normal and one for suspend state.
186 * There are 2 modes to map to: NORMAL and STANDBY (sleep) for each state.
187 */
188
189static int da9062_ldo_set_mode(struct regulator_dev *rdev, unsigned mode)
190{
191 struct da9062_regulator *regl = rdev_get_drvdata(rdev);
192 unsigned val;
193
194 switch (mode) {
195 case REGULATOR_MODE_NORMAL:
196 val = 0;
197 break;
198 case REGULATOR_MODE_STANDBY:
199 val = 1;
200 break;
201 default:
202 return -EINVAL;
203 }
204
205 return regmap_field_write(regl->sleep, val);
206}
207
208static unsigned da9062_ldo_get_mode(struct regulator_dev *rdev)
209{
210 struct da9062_regulator *regl = rdev_get_drvdata(rdev);
211 struct regmap_field *field;
212 int ret, val;
213
214 /* Detect current regulator state */
215 ret = regmap_field_read(regl->suspend, &val);
216 if (ret < 0)
217 return 0;
218
219 /* Read regulator mode from proper register, depending on state */
220 if (val)
221 field = regl->suspend_sleep;
222 else
223 field = regl->sleep;
224
225 ret = regmap_field_read(field, &val);
226 if (ret < 0)
227 return 0;
228
229 if (val)
230 return REGULATOR_MODE_STANDBY;
231 else
232 return REGULATOR_MODE_NORMAL;
233}
234
235static int da9062_buck_get_status(struct regulator_dev *rdev)
236{
237 int ret = regulator_is_enabled_regmap(rdev);
238
239 if (ret == 0) {
240 ret = REGULATOR_STATUS_OFF;
241 } else if (ret > 0) {
242 ret = da9062_buck_get_mode(rdev);
243 if (ret > 0)
244 ret = regulator_mode_to_status(ret);
245 else if (ret == 0)
246 ret = -EIO;
247 }
248
249 return ret;
250}
251
252static int da9062_ldo_get_status(struct regulator_dev *rdev)
253{
254 int ret = regulator_is_enabled_regmap(rdev);
255
256 if (ret == 0) {
257 ret = REGULATOR_STATUS_OFF;
258 } else if (ret > 0) {
259 ret = da9062_ldo_get_mode(rdev);
260 if (ret > 0)
261 ret = regulator_mode_to_status(ret);
262 else if (ret == 0)
263 ret = -EIO;
264 }
265
266 return ret;
267}
268
269static int da9062_set_suspend_voltage(struct regulator_dev *rdev, int uv)
270{
271 struct da9062_regulator *regl = rdev_get_drvdata(rdev);
272 const struct da9062_regulator_info *rinfo = regl->info;
273 int ret, sel;
274
275 sel = regulator_map_voltage_linear(rdev, uv, uv);
276 if (sel < 0)
277 return sel;
278
279 sel <<= ffs(rdev->desc->vsel_mask) - 1;
280
281 ret = regmap_update_bits(regl->hw->regmap, rinfo->suspend_vsel_reg,
282 rdev->desc->vsel_mask, sel);
283
284 return ret;
285}
286
287static int da9062_suspend_enable(struct regulator_dev *rdev)
288{
289 struct da9062_regulator *regl = rdev_get_drvdata(rdev);
290
291 return regmap_field_write(regl->suspend, 1);
292}
293
294static int da9062_suspend_disable(struct regulator_dev *rdev)
295{
296 struct da9062_regulator *regl = rdev_get_drvdata(rdev);
297
298 return regmap_field_write(regl->suspend, 0);
299}
300
301static int da9062_buck_set_suspend_mode(struct regulator_dev *rdev,
302 unsigned mode)
303{
304 struct da9062_regulator *regl = rdev_get_drvdata(rdev);
305 int val;
306
307 switch (mode) {
308 case REGULATOR_MODE_FAST:
309 val = BUCK_MODE_SYNC;
310 break;
311 case REGULATOR_MODE_NORMAL:
312 val = BUCK_MODE_AUTO;
313 break;
314 case REGULATOR_MODE_STANDBY:
315 val = BUCK_MODE_SLEEP;
316 break;
317 default:
318 return -EINVAL;
319 }
320
321 return regmap_field_write(regl->mode, val);
322}
323
324static int da9062_ldo_set_suspend_mode(struct regulator_dev *rdev,
325 unsigned mode)
326{
327 struct da9062_regulator *regl = rdev_get_drvdata(rdev);
328 unsigned val;
329
330 switch (mode) {
331 case REGULATOR_MODE_NORMAL:
332 val = 0;
333 break;
334 case REGULATOR_MODE_STANDBY:
335 val = 1;
336 break;
337 default:
338 return -EINVAL;
339 }
340
341 return regmap_field_write(regl->suspend_sleep, val);
342}
343
71242b49 344static const struct regulator_ops da9062_buck_ops = {
4068e518
T		 345 .enable = regulator_enable_regmap,
346 .disable = regulator_disable_regmap,
347 .is_enabled = regulator_is_enabled_regmap,
348 .get_voltage_sel = regulator_get_voltage_sel_regmap,
349 .set_voltage_sel = regulator_set_voltage_sel_regmap,
350 .list_voltage = regulator_list_voltage_linear,
958e9b82
AL		 351 .set_current_limit = regulator_set_current_limit_regmap,
352 .get_current_limit = regulator_get_current_limit_regmap,
4068e518
T		 353 .set_mode = da9062_buck_set_mode,
354 .get_mode = da9062_buck_get_mode,
355 .get_status = da9062_buck_get_status,
356 .set_suspend_voltage = da9062_set_suspend_voltage,
357 .set_suspend_enable = da9062_suspend_enable,
358 .set_suspend_disable = da9062_suspend_disable,
359 .set_suspend_mode = da9062_buck_set_suspend_mode,
360};
361
71242b49 362static const struct regulator_ops da9062_ldo_ops = {
4068e518
T		 363 .enable = regulator_enable_regmap,
364 .disable = regulator_disable_regmap,
365 .is_enabled = regulator_is_enabled_regmap,
366 .get_voltage_sel = regulator_get_voltage_sel_regmap,
367 .set_voltage_sel = regulator_set_voltage_sel_regmap,
368 .list_voltage = regulator_list_voltage_linear,
369 .set_mode = da9062_ldo_set_mode,
370 .get_mode = da9062_ldo_get_mode,
371 .get_status = da9062_ldo_get_status,
372 .set_suspend_voltage = da9062_set_suspend_voltage,
373 .set_suspend_enable = da9062_suspend_enable,
374 .set_suspend_disable = da9062_suspend_disable,
375 .set_suspend_mode = da9062_ldo_set_suspend_mode,
376};
377
4b7f4958
ST		 378/* DA9061 Regulator information */
379static const struct da9062_regulator_info local_da9061_regulator_info[] = {
380 {
381 .desc.id = DA9061_ID_BUCK1,
382 .desc.name = "DA9061 BUCK1",
383 .desc.of_match = of_match_ptr("buck1"),
384 .desc.regulators_node = of_match_ptr("regulators"),
385 .desc.ops = &da9062_buck_ops,
386 .desc.min_uV = (300) * 1000,
387 .desc.uV_step = (10) * 1000,
388 .desc.n_voltages = ((1570) - (300))/(10) + 1,
958e9b82
AL		 389 .desc.curr_table = da9062_buck_a_limits,
390 .desc.n_current_limits = ARRAY_SIZE(da9062_buck_a_limits),
391 .desc.csel_reg = DA9062AA_BUCK_ILIM_C,
392 .desc.csel_mask = DA9062AA_BUCK1_ILIM_MASK,
4b7f4958
ST		 393 .desc.enable_reg = DA9062AA_BUCK1_CONT,
394 .desc.enable_mask = DA9062AA_BUCK1_EN_MASK,
395 .desc.vsel_reg = DA9062AA_VBUCK1_A,
396 .desc.vsel_mask = DA9062AA_VBUCK1_A_MASK,
397 .desc.linear_min_sel = 0,
398 .sleep = REG_FIELD(DA9062AA_VBUCK1_A,
399 __builtin_ffs((int)DA9062AA_BUCK1_SL_A_MASK) - 1,
400 sizeof(unsigned int) * 8 -
401 __builtin_clz((DA9062AA_BUCK1_SL_A_MASK)) - 1),
402 .suspend_sleep = REG_FIELD(DA9062AA_VBUCK1_B,
403 __builtin_ffs((int)DA9062AA_BUCK1_SL_B_MASK) - 1,
404 sizeof(unsigned int) * 8 -
405 __builtin_clz((DA9062AA_BUCK1_SL_B_MASK)) - 1),
406 .suspend_vsel_reg = DA9062AA_VBUCK1_B,
407 .mode = REG_FIELD(DA9062AA_BUCK1_CFG,
408 __builtin_ffs((int)DA9062AA_BUCK1_MODE_MASK) - 1,
409 sizeof(unsigned int) * 8 -
410 __builtin_clz((DA9062AA_BUCK1_MODE_MASK)) - 1),
411 .suspend = REG_FIELD(DA9062AA_DVC_1,
412 __builtin_ffs((int)DA9062AA_VBUCK1_SEL_MASK) - 1,
413 sizeof(unsigned int) * 8 -
414 __builtin_clz((DA9062AA_VBUCK1_SEL_MASK)) - 1),
4b7f4958
ST		 415 },
416 {
417 .desc.id = DA9061_ID_BUCK2,
418 .desc.name = "DA9061 BUCK2",
419 .desc.of_match = of_match_ptr("buck2"),
420 .desc.regulators_node = of_match_ptr("regulators"),
421 .desc.ops = &da9062_buck_ops,
422 .desc.min_uV = (800) * 1000,
423 .desc.uV_step = (20) * 1000,
424 .desc.n_voltages = ((3340) - (800))/(20) + 1,
958e9b82
AL		 425 .desc.curr_table = da9062_buck_b_limits,
426 .desc.n_current_limits = ARRAY_SIZE(da9062_buck_b_limits),
427 .desc.csel_reg = DA9062AA_BUCK_ILIM_A,
428 .desc.csel_mask = DA9062AA_BUCK3_ILIM_MASK,
4b7f4958
ST		 429 .desc.enable_reg = DA9062AA_BUCK3_CONT,
430 .desc.enable_mask = DA9062AA_BUCK3_EN_MASK,
431 .desc.vsel_reg = DA9062AA_VBUCK3_A,
432 .desc.vsel_mask = DA9062AA_VBUCK3_A_MASK,
433 .desc.linear_min_sel = 0,
434 .sleep = REG_FIELD(DA9062AA_VBUCK3_A,
435 __builtin_ffs((int)DA9062AA_BUCK3_SL_A_MASK) - 1,
436 sizeof(unsigned int) * 8 -
437 __builtin_clz((DA9062AA_BUCK3_SL_A_MASK)) - 1),
438 .suspend_sleep = REG_FIELD(DA9062AA_VBUCK3_B,
439 __builtin_ffs((int)DA9062AA_BUCK3_SL_B_MASK) - 1,
440 sizeof(unsigned int) * 8 -
441 __builtin_clz((DA9062AA_BUCK3_SL_B_MASK)) - 1),
442 .suspend_vsel_reg = DA9062AA_VBUCK3_B,
443 .mode = REG_FIELD(DA9062AA_BUCK3_CFG,
444 __builtin_ffs((int)DA9062AA_BUCK3_MODE_MASK) - 1,
445 sizeof(unsigned int) * 8 -
446 __builtin_clz((DA9062AA_BUCK3_MODE_MASK)) - 1),
447 .suspend = REG_FIELD(DA9062AA_DVC_1,
448 __builtin_ffs((int)DA9062AA_VBUCK3_SEL_MASK) - 1,
449 sizeof(unsigned int) * 8 -
450 __builtin_clz((DA9062AA_VBUCK3_SEL_MASK)) - 1),
4b7f4958
ST		 451 },
452 {
453 .desc.id = DA9061_ID_BUCK3,
454 .desc.name = "DA9061 BUCK3",
455 .desc.of_match = of_match_ptr("buck3"),
456 .desc.regulators_node = of_match_ptr("regulators"),
457 .desc.ops = &da9062_buck_ops,
458 .desc.min_uV = (530) * 1000,
459 .desc.uV_step = (10) * 1000,
460 .desc.n_voltages = ((1800) - (530))/(10) + 1,
958e9b82
AL		 461 .desc.curr_table = da9062_buck_a_limits,
462 .desc.n_current_limits = ARRAY_SIZE(da9062_buck_a_limits),
463 .desc.csel_reg = DA9062AA_BUCK_ILIM_B,
464 .desc.csel_mask = DA9062AA_BUCK4_ILIM_MASK,
4b7f4958
ST		 465 .desc.enable_reg = DA9062AA_BUCK4_CONT,
466 .desc.enable_mask = DA9062AA_BUCK4_EN_MASK,
467 .desc.vsel_reg = DA9062AA_VBUCK4_A,
468 .desc.vsel_mask = DA9062AA_VBUCK4_A_MASK,
469 .desc.linear_min_sel = 0,
470 .sleep = REG_FIELD(DA9062AA_VBUCK4_A,
471 __builtin_ffs((int)DA9062AA_BUCK4_SL_A_MASK) - 1,
472 sizeof(unsigned int) * 8 -
473 __builtin_clz((DA9062AA_BUCK4_SL_A_MASK)) - 1),
474 .suspend_sleep = REG_FIELD(DA9062AA_VBUCK4_B,
475 __builtin_ffs((int)DA9062AA_BUCK4_SL_B_MASK) - 1,
476 sizeof(unsigned int) * 8 -
477 __builtin_clz((DA9062AA_BUCK4_SL_B_MASK)) - 1),
478 .suspend_vsel_reg = DA9062AA_VBUCK4_B,
479 .mode = REG_FIELD(DA9062AA_BUCK4_CFG,
480 __builtin_ffs((int)DA9062AA_BUCK4_MODE_MASK) - 1,
481 sizeof(unsigned int) * 8 -
482 __builtin_clz((DA9062AA_BUCK4_MODE_MASK)) - 1),
483 .suspend = REG_FIELD(DA9062AA_DVC_1,
484 __builtin_ffs((int)DA9062AA_VBUCK4_SEL_MASK) - 1,
485 sizeof(unsigned int) * 8 -
486 __builtin_clz((DA9062AA_VBUCK4_SEL_MASK)) - 1),
4b7f4958
ST		 487 },
488 {
489 .desc.id = DA9061_ID_LDO1,
490 .desc.name = "DA9061 LDO1",
491 .desc.of_match = of_match_ptr("ldo1"),
492 .desc.regulators_node = of_match_ptr("regulators"),
493 .desc.ops = &da9062_ldo_ops,
494 .desc.min_uV = (900) * 1000,
495 .desc.uV_step = (50) * 1000,
496 .desc.n_voltages = ((3600) - (900))/(50) + 1,
497 .desc.enable_reg = DA9062AA_LDO1_CONT,
498 .desc.enable_mask = DA9062AA_LDO1_EN_MASK,
499 .desc.vsel_reg = DA9062AA_VLDO1_A,
500 .desc.vsel_mask = DA9062AA_VLDO1_A_MASK,
501 .desc.linear_min_sel = 0,
502 .sleep = REG_FIELD(DA9062AA_VLDO1_A,
503 __builtin_ffs((int)DA9062AA_LDO1_SL_A_MASK) - 1,
504 sizeof(unsigned int) * 8 -
505 __builtin_clz((DA9062AA_LDO1_SL_A_MASK)) - 1),
506 .suspend_sleep = REG_FIELD(DA9062AA_VLDO1_B,
507 __builtin_ffs((int)DA9062AA_LDO1_SL_B_MASK) - 1,
508 sizeof(unsigned int) * 8 -
509 __builtin_clz((DA9062AA_LDO1_SL_B_MASK)) - 1),
510 .suspend_vsel_reg = DA9062AA_VLDO1_B,
511 .suspend = REG_FIELD(DA9062AA_DVC_1,
512 __builtin_ffs((int)DA9062AA_VLDO1_SEL_MASK) - 1,
513 sizeof(unsigned int) * 8 -
514 __builtin_clz((DA9062AA_VLDO1_SEL_MASK)) - 1),
515 .oc_event = REG_FIELD(DA9062AA_STATUS_D,
516 __builtin_ffs((int)DA9062AA_LDO1_ILIM_MASK) - 1,
517 sizeof(unsigned int) * 8 -
518 __builtin_clz((DA9062AA_LDO1_ILIM_MASK)) - 1),
519 },
520 {
521 .desc.id = DA9061_ID_LDO2,
522 .desc.name = "DA9061 LDO2",
523 .desc.of_match = of_match_ptr("ldo2"),
524 .desc.regulators_node = of_match_ptr("regulators"),
525 .desc.ops = &da9062_ldo_ops,
526 .desc.min_uV = (900) * 1000,
527 .desc.uV_step = (50) * 1000,
528 .desc.n_voltages = ((3600) - (600))/(50) + 1,
529 .desc.enable_reg = DA9062AA_LDO2_CONT,
530 .desc.enable_mask = DA9062AA_LDO2_EN_MASK,
531 .desc.vsel_reg = DA9062AA_VLDO2_A,
532 .desc.vsel_mask = DA9062AA_VLDO2_A_MASK,
533 .desc.linear_min_sel = 0,
534 .sleep = REG_FIELD(DA9062AA_VLDO2_A,
535 __builtin_ffs((int)DA9062AA_LDO2_SL_A_MASK) - 1,
536 sizeof(unsigned int) * 8 -
537 __builtin_clz((DA9062AA_LDO2_SL_A_MASK)) - 1),
538 .suspend_sleep = REG_FIELD(DA9062AA_VLDO2_B,
539 __builtin_ffs((int)DA9062AA_LDO2_SL_B_MASK) - 1,
540 sizeof(unsigned int) * 8 -
541 __builtin_clz((DA9062AA_LDO2_SL_B_MASK)) - 1),
542 .suspend_vsel_reg = DA9062AA_VLDO2_B,
543 .suspend = REG_FIELD(DA9062AA_DVC_1,
544 __builtin_ffs((int)DA9062AA_VLDO2_SEL_MASK) - 1,
545 sizeof(unsigned int) * 8 -
546 __builtin_clz((DA9062AA_VLDO2_SEL_MASK)) - 1),
547 .oc_event = REG_FIELD(DA9062AA_STATUS_D,
548 __builtin_ffs((int)DA9062AA_LDO2_ILIM_MASK) - 1,
549 sizeof(unsigned int) * 8 -
550 __builtin_clz((DA9062AA_LDO2_ILIM_MASK)) - 1),
551 },
552 {
553 .desc.id = DA9061_ID_LDO3,
554 .desc.name = "DA9061 LDO3",
555 .desc.of_match = of_match_ptr("ldo3"),
556 .desc.regulators_node = of_match_ptr("regulators"),
557 .desc.ops = &da9062_ldo_ops,
558 .desc.min_uV = (900) * 1000,
559 .desc.uV_step = (50) * 1000,
560 .desc.n_voltages = ((3600) - (900))/(50) + 1,
561 .desc.enable_reg = DA9062AA_LDO3_CONT,
562 .desc.enable_mask = DA9062AA_LDO3_EN_MASK,
563 .desc.vsel_reg = DA9062AA_VLDO3_A,
564 .desc.vsel_mask = DA9062AA_VLDO3_A_MASK,
565 .desc.linear_min_sel = 0,
566 .sleep = REG_FIELD(DA9062AA_VLDO3_A,
567 __builtin_ffs((int)DA9062AA_LDO3_SL_A_MASK) - 1,
568 sizeof(unsigned int) * 8 -
569 __builtin_clz((DA9062AA_LDO3_SL_A_MASK)) - 1),
570 .suspend_sleep = REG_FIELD(DA9062AA_VLDO3_B,
571 __builtin_ffs((int)DA9062AA_LDO3_SL_B_MASK) - 1,
572 sizeof(unsigned int) * 8 -
573 __builtin_clz((DA9062AA_LDO3_SL_B_MASK)) - 1),
574 .suspend_vsel_reg = DA9062AA_VLDO3_B,
575 .suspend = REG_FIELD(DA9062AA_DVC_1,
576 __builtin_ffs((int)DA9062AA_VLDO3_SEL_MASK) - 1,
577 sizeof(unsigned int) * 8 -
578 __builtin_clz((DA9062AA_VLDO3_SEL_MASK)) - 1),
579 .oc_event = REG_FIELD(DA9062AA_STATUS_D,
580 __builtin_ffs((int)DA9062AA_LDO3_ILIM_MASK) - 1,
581 sizeof(unsigned int) * 8 -
582 __builtin_clz((DA9062AA_LDO3_ILIM_MASK)) - 1),
583 },
584 {
585 .desc.id = DA9061_ID_LDO4,
586 .desc.name = "DA9061 LDO4",
587 .desc.of_match = of_match_ptr("ldo4"),
588 .desc.regulators_node = of_match_ptr("regulators"),
589 .desc.ops = &da9062_ldo_ops,
590 .desc.min_uV = (900) * 1000,
591 .desc.uV_step = (50) * 1000,
592 .desc.n_voltages = ((3600) - (900))/(50) + 1,
593 .desc.enable_reg = DA9062AA_LDO4_CONT,
594 .desc.enable_mask = DA9062AA_LDO4_EN_MASK,
595 .desc.vsel_reg = DA9062AA_VLDO4_A,
596 .desc.vsel_mask = DA9062AA_VLDO4_A_MASK,
597 .desc.linear_min_sel = 0,
598 .sleep = REG_FIELD(DA9062AA_VLDO4_A,
599 __builtin_ffs((int)DA9062AA_LDO4_SL_A_MASK) - 1,
600 sizeof(unsigned int) * 8 -
601 __builtin_clz((DA9062AA_LDO4_SL_A_MASK)) - 1),
602 .suspend_sleep = REG_FIELD(DA9062AA_VLDO4_B,
603 __builtin_ffs((int)DA9062AA_LDO4_SL_B_MASK) - 1,
604 sizeof(unsigned int) * 8 -
605 __builtin_clz((DA9062AA_LDO4_SL_B_MASK)) - 1),
606 .suspend_vsel_reg = DA9062AA_VLDO4_B,
607 .suspend = REG_FIELD(DA9062AA_DVC_1,
608 __builtin_ffs((int)DA9062AA_VLDO4_SEL_MASK) - 1,
609 sizeof(unsigned int) * 8 -
610 __builtin_clz((DA9062AA_VLDO4_SEL_MASK)) - 1),
611 .oc_event = REG_FIELD(DA9062AA_STATUS_D,
612 __builtin_ffs((int)DA9062AA_LDO4_ILIM_MASK) - 1,
613 sizeof(unsigned int) * 8 -
614 __builtin_clz((DA9062AA_LDO4_ILIM_MASK)) - 1),
615 },
616};
617
618/* DA9062 Regulator information */
619static const struct da9062_regulator_info local_da9062_regulator_info[] = {
4068e518
T		 620 {
621 .desc.id = DA9062_ID_BUCK1,
622 .desc.name = "DA9062 BUCK1",
623 .desc.of_match = of_match_ptr("buck1"),
624 .desc.regulators_node = of_match_ptr("regulators"),
625 .desc.ops = &da9062_buck_ops,
626 .desc.min_uV = (300) * 1000,
627 .desc.uV_step = (10) * 1000,
628 .desc.n_voltages = ((1570) - (300))/(10) + 1,
958e9b82
AL		 629 .desc.curr_table = da9062_buck_a_limits,
630 .desc.n_current_limits = ARRAY_SIZE(da9062_buck_a_limits),
631 .desc.csel_reg = DA9062AA_BUCK_ILIM_C,
632 .desc.csel_mask = DA9062AA_BUCK1_ILIM_MASK,
4068e518
T		 633 .desc.enable_reg = DA9062AA_BUCK1_CONT,
634 .desc.enable_mask = DA9062AA_BUCK1_EN_MASK,
635 .desc.vsel_reg = DA9062AA_VBUCK1_A,
636 .desc.vsel_mask = DA9062AA_VBUCK1_A_MASK,
637 .desc.linear_min_sel = 0,
638 .sleep = REG_FIELD(DA9062AA_VBUCK1_A,
639 __builtin_ffs((int)DA9062AA_BUCK1_SL_A_MASK) - 1,
640 sizeof(unsigned int) * 8 -
641 __builtin_clz((DA9062AA_BUCK1_SL_A_MASK)) - 1),
642 .suspend_sleep = REG_FIELD(DA9062AA_VBUCK1_B,
643 __builtin_ffs((int)DA9062AA_BUCK1_SL_B_MASK) - 1,
644 sizeof(unsigned int) * 8 -
645 __builtin_clz((DA9062AA_BUCK1_SL_B_MASK)) - 1),
646 .suspend_vsel_reg = DA9062AA_VBUCK1_B,
647 .mode = REG_FIELD(DA9062AA_BUCK1_CFG,
648 __builtin_ffs((int)DA9062AA_BUCK1_MODE_MASK) - 1,
649 sizeof(unsigned int) * 8 -
650 __builtin_clz((DA9062AA_BUCK1_MODE_MASK)) - 1),
651 .suspend = REG_FIELD(DA9062AA_DVC_1,
652 __builtin_ffs((int)DA9062AA_VBUCK1_SEL_MASK) - 1,
653 sizeof(unsigned int) * 8 -
654 __builtin_clz((DA9062AA_VBUCK1_SEL_MASK)) - 1),
4068e518
T		 655 },
656 {
657 .desc.id = DA9062_ID_BUCK2,
658 .desc.name = "DA9062 BUCK2",
659 .desc.of_match = of_match_ptr("buck2"),
660 .desc.regulators_node = of_match_ptr("regulators"),
661 .desc.ops = &da9062_buck_ops,
662 .desc.min_uV = (300) * 1000,
663 .desc.uV_step = (10) * 1000,
664 .desc.n_voltages = ((1570) - (300))/(10) + 1,
958e9b82
AL		 665 .desc.curr_table = da9062_buck_a_limits,
666 .desc.n_current_limits = ARRAY_SIZE(da9062_buck_a_limits),
667 .desc.csel_reg = DA9062AA_BUCK_ILIM_C,
668 .desc.csel_mask = DA9062AA_BUCK2_ILIM_MASK,
4068e518
T		 669 .desc.enable_reg = DA9062AA_BUCK2_CONT,
670 .desc.enable_mask = DA9062AA_BUCK2_EN_MASK,
671 .desc.vsel_reg = DA9062AA_VBUCK2_A,
672 .desc.vsel_mask = DA9062AA_VBUCK2_A_MASK,
673 .desc.linear_min_sel = 0,
674 .sleep = REG_FIELD(DA9062AA_VBUCK2_A,
675 __builtin_ffs((int)DA9062AA_BUCK2_SL_A_MASK) - 1,
676 sizeof(unsigned int) * 8 -
677 __builtin_clz((DA9062AA_BUCK2_SL_A_MASK)) - 1),
678 .suspend_sleep = REG_FIELD(DA9062AA_VBUCK2_B,
679 __builtin_ffs((int)DA9062AA_BUCK2_SL_B_MASK) - 1,
680 sizeof(unsigned int) * 8 -
681 __builtin_clz((DA9062AA_BUCK2_SL_B_MASK)) - 1),
682 .suspend_vsel_reg = DA9062AA_VBUCK2_B,
683 .mode = REG_FIELD(DA9062AA_BUCK2_CFG,
684 __builtin_ffs((int)DA9062AA_BUCK2_MODE_MASK) - 1,
685 sizeof(unsigned int) * 8 -
686 __builtin_clz((DA9062AA_BUCK2_MODE_MASK)) - 1),
687 .suspend = REG_FIELD(DA9062AA_DVC_1,
688 __builtin_ffs((int)DA9062AA_VBUCK2_SEL_MASK) - 1,
689 sizeof(unsigned int) * 8 -
690 __builtin_clz((DA9062AA_VBUCK2_SEL_MASK)) - 1),
4068e518
T		 691 },
692 {
693 .desc.id = DA9062_ID_BUCK3,
694 .desc.name = "DA9062 BUCK3",
695 .desc.of_match = of_match_ptr("buck3"),
696 .desc.regulators_node = of_match_ptr("regulators"),
697 .desc.ops = &da9062_buck_ops,
698 .desc.min_uV = (800) * 1000,
699 .desc.uV_step = (20) * 1000,
700 .desc.n_voltages = ((3340) - (800))/(20) + 1,
958e9b82
AL		 701 .desc.curr_table = da9062_buck_b_limits,
702 .desc.n_current_limits = ARRAY_SIZE(da9062_buck_b_limits),
703 .desc.csel_reg = DA9062AA_BUCK_ILIM_A,
704 .desc.csel_mask = DA9062AA_BUCK3_ILIM_MASK,
4068e518
T		 705 .desc.enable_reg = DA9062AA_BUCK3_CONT,
706 .desc.enable_mask = DA9062AA_BUCK3_EN_MASK,
707 .desc.vsel_reg = DA9062AA_VBUCK3_A,
708 .desc.vsel_mask = DA9062AA_VBUCK3_A_MASK,
709 .desc.linear_min_sel = 0,
710 .sleep = REG_FIELD(DA9062AA_VBUCK3_A,
711 __builtin_ffs((int)DA9062AA_BUCK3_SL_A_MASK) - 1,
712 sizeof(unsigned int) * 8 -
713 __builtin_clz((DA9062AA_BUCK3_SL_A_MASK)) - 1),
714 .suspend_sleep = REG_FIELD(DA9062AA_VBUCK3_B,
715 __builtin_ffs((int)DA9062AA_BUCK3_SL_B_MASK) - 1,
716 sizeof(unsigned int) * 8 -
717 __builtin_clz((DA9062AA_BUCK3_SL_B_MASK)) - 1),
718 .suspend_vsel_reg = DA9062AA_VBUCK3_B,
719 .mode = REG_FIELD(DA9062AA_BUCK3_CFG,
720 __builtin_ffs((int)DA9062AA_BUCK3_MODE_MASK) - 1,
721 sizeof(unsigned int) * 8 -
722 __builtin_clz((DA9062AA_BUCK3_MODE_MASK)) - 1),
723 .suspend = REG_FIELD(DA9062AA_DVC_1,
724 __builtin_ffs((int)DA9062AA_VBUCK3_SEL_MASK) - 1,
725 sizeof(unsigned int) * 8 -
726 __builtin_clz((DA9062AA_VBUCK3_SEL_MASK)) - 1),
4068e518
T		 727 },
728 {
729 .desc.id = DA9062_ID_BUCK4,
730 .desc.name = "DA9062 BUCK4",
731 .desc.of_match = of_match_ptr("buck4"),
732 .desc.regulators_node = of_match_ptr("regulators"),
733 .desc.ops = &da9062_buck_ops,
734 .desc.min_uV = (530) * 1000,
735 .desc.uV_step = (10) * 1000,
736 .desc.n_voltages = ((1800) - (530))/(10) + 1,
958e9b82
AL		 737 .desc.curr_table = da9062_buck_a_limits,
738 .desc.n_current_limits = ARRAY_SIZE(da9062_buck_a_limits),
739 .desc.csel_reg = DA9062AA_BUCK_ILIM_B,
740 .desc.csel_mask = DA9062AA_BUCK4_ILIM_MASK,
4068e518
T		 741 .desc.enable_reg = DA9062AA_BUCK4_CONT,
742 .desc.enable_mask = DA9062AA_BUCK4_EN_MASK,
743 .desc.vsel_reg = DA9062AA_VBUCK4_A,
744 .desc.vsel_mask = DA9062AA_VBUCK4_A_MASK,
745 .desc.linear_min_sel = 0,
746 .sleep = REG_FIELD(DA9062AA_VBUCK4_A,
747 __builtin_ffs((int)DA9062AA_BUCK4_SL_A_MASK) - 1,
748 sizeof(unsigned int) * 8 -
749 __builtin_clz((DA9062AA_BUCK4_SL_A_MASK)) - 1),
750 .suspend_sleep = REG_FIELD(DA9062AA_VBUCK4_B,
751 __builtin_ffs((int)DA9062AA_BUCK4_SL_B_MASK) - 1,
752 sizeof(unsigned int) * 8 -
753 __builtin_clz((DA9062AA_BUCK4_SL_B_MASK)) - 1),
754 .suspend_vsel_reg = DA9062AA_VBUCK4_B,
755 .mode = REG_FIELD(DA9062AA_BUCK4_CFG,
756 __builtin_ffs((int)DA9062AA_BUCK4_MODE_MASK) - 1,
757 sizeof(unsigned int) * 8 -
758 __builtin_clz((DA9062AA_BUCK4_MODE_MASK)) - 1),
759 .suspend = REG_FIELD(DA9062AA_DVC_1,
760 __builtin_ffs((int)DA9062AA_VBUCK4_SEL_MASK) - 1,
761 sizeof(unsigned int) * 8 -
762 __builtin_clz((DA9062AA_VBUCK4_SEL_MASK)) - 1),
4068e518
T		 763 },
764 {
765 .desc.id = DA9062_ID_LDO1,
766 .desc.name = "DA9062 LDO1",
767 .desc.of_match = of_match_ptr("ldo1"),
768 .desc.regulators_node = of_match_ptr("regulators"),
769 .desc.ops = &da9062_ldo_ops,
770 .desc.min_uV = (900) * 1000,
771 .desc.uV_step = (50) * 1000,
772 .desc.n_voltages = ((3600) - (900))/(50) + 1,
773 .desc.enable_reg = DA9062AA_LDO1_CONT,
774 .desc.enable_mask = DA9062AA_LDO1_EN_MASK,
775 .desc.vsel_reg = DA9062AA_VLDO1_A,
776 .desc.vsel_mask = DA9062AA_VLDO1_A_MASK,
777 .desc.linear_min_sel = 0,
778 .sleep = REG_FIELD(DA9062AA_VLDO1_A,
779 __builtin_ffs((int)DA9062AA_LDO1_SL_A_MASK) - 1,
780 sizeof(unsigned int) * 8 -
781 __builtin_clz((DA9062AA_LDO1_SL_A_MASK)) - 1),
782 .suspend_sleep = REG_FIELD(DA9062AA_VLDO1_B,
783 __builtin_ffs((int)DA9062AA_LDO1_SL_B_MASK) - 1,
784 sizeof(unsigned int) * 8 -
785 __builtin_clz((DA9062AA_LDO1_SL_B_MASK)) - 1),
786 .suspend_vsel_reg = DA9062AA_VLDO1_B,
787 .suspend = REG_FIELD(DA9062AA_DVC_1,
788 __builtin_ffs((int)DA9062AA_VLDO1_SEL_MASK) - 1,
789 sizeof(unsigned int) * 8 -
790 __builtin_clz((DA9062AA_VLDO1_SEL_MASK)) - 1),
791 .oc_event = REG_FIELD(DA9062AA_STATUS_D,
792 __builtin_ffs((int)DA9062AA_LDO1_ILIM_MASK) - 1,
793 sizeof(unsigned int) * 8 -
794 __builtin_clz((DA9062AA_LDO1_ILIM_MASK)) - 1),
795 },
796 {
797 .desc.id = DA9062_ID_LDO2,
798 .desc.name = "DA9062 LDO2",
799 .desc.of_match = of_match_ptr("ldo2"),
800 .desc.regulators_node = of_match_ptr("regulators"),
801 .desc.ops = &da9062_ldo_ops,
802 .desc.min_uV = (900) * 1000,
803 .desc.uV_step = (50) * 1000,
804 .desc.n_voltages = ((3600) - (600))/(50) + 1,
805 .desc.enable_reg = DA9062AA_LDO2_CONT,
806 .desc.enable_mask = DA9062AA_LDO2_EN_MASK,
807 .desc.vsel_reg = DA9062AA_VLDO2_A,
808 .desc.vsel_mask = DA9062AA_VLDO2_A_MASK,
809 .desc.linear_min_sel = 0,
810 .sleep = REG_FIELD(DA9062AA_VLDO2_A,
811 __builtin_ffs((int)DA9062AA_LDO2_SL_A_MASK) - 1,
812 sizeof(unsigned int) * 8 -
813 __builtin_clz((DA9062AA_LDO2_SL_A_MASK)) - 1),
814 .suspend_sleep = REG_FIELD(DA9062AA_VLDO2_B,
815 __builtin_ffs((int)DA9062AA_LDO2_SL_B_MASK) - 1,
816 sizeof(unsigned int) * 8 -
817 __builtin_clz((DA9062AA_LDO2_SL_B_MASK)) - 1),
818 .suspend_vsel_reg = DA9062AA_VLDO2_B,
819 .suspend = REG_FIELD(DA9062AA_DVC_1,
820 __builtin_ffs((int)DA9062AA_VLDO2_SEL_MASK) - 1,
821 sizeof(unsigned int) * 8 -
822 __builtin_clz((DA9062AA_VLDO2_SEL_MASK)) - 1),
823 .oc_event = REG_FIELD(DA9062AA_STATUS_D,
824 __builtin_ffs((int)DA9062AA_LDO2_ILIM_MASK) - 1,
825 sizeof(unsigned int) * 8 -
826 __builtin_clz((DA9062AA_LDO2_ILIM_MASK)) - 1),
827 },
828 {
829 .desc.id = DA9062_ID_LDO3,
830 .desc.name = "DA9062 LDO3",
831 .desc.of_match = of_match_ptr("ldo3"),
832 .desc.regulators_node = of_match_ptr("regulators"),
833 .desc.ops = &da9062_ldo_ops,
834 .desc.min_uV = (900) * 1000,
835 .desc.uV_step = (50) * 1000,
836 .desc.n_voltages = ((3600) - (900))/(50) + 1,
837 .desc.enable_reg = DA9062AA_LDO3_CONT,
838 .desc.enable_mask = DA9062AA_LDO3_EN_MASK,
839 .desc.vsel_reg = DA9062AA_VLDO3_A,
840 .desc.vsel_mask = DA9062AA_VLDO3_A_MASK,
841 .desc.linear_min_sel = 0,
842 .sleep = REG_FIELD(DA9062AA_VLDO3_A,
843 __builtin_ffs((int)DA9062AA_LDO3_SL_A_MASK) - 1,
844 sizeof(unsigned int) * 8 -
845 __builtin_clz((DA9062AA_LDO3_SL_A_MASK)) - 1),
846 .suspend_sleep = REG_FIELD(DA9062AA_VLDO3_B,
847 __builtin_ffs((int)DA9062AA_LDO3_SL_B_MASK) - 1,
848 sizeof(unsigned int) * 8 -
849 __builtin_clz((DA9062AA_LDO3_SL_B_MASK)) - 1),
850 .suspend_vsel_reg = DA9062AA_VLDO3_B,
851 .suspend = REG_FIELD(DA9062AA_DVC_1,
852 __builtin_ffs((int)DA9062AA_VLDO3_SEL_MASK) - 1,
853 sizeof(unsigned int) * 8 -
854 __builtin_clz((DA9062AA_VLDO3_SEL_MASK)) - 1),
855 .oc_event = REG_FIELD(DA9062AA_STATUS_D,
856 __builtin_ffs((int)DA9062AA_LDO3_ILIM_MASK) - 1,
857 sizeof(unsigned int) * 8 -
858 __builtin_clz((DA9062AA_LDO3_ILIM_MASK)) - 1),
859 },
860 {
861 .desc.id = DA9062_ID_LDO4,
862 .desc.name = "DA9062 LDO4",
863 .desc.of_match = of_match_ptr("ldo4"),
864 .desc.regulators_node = of_match_ptr("regulators"),
865 .desc.ops = &da9062_ldo_ops,
866 .desc.min_uV = (900) * 1000,
867 .desc.uV_step = (50) * 1000,
868 .desc.n_voltages = ((3600) - (900))/(50) + 1,
869 .desc.enable_reg = DA9062AA_LDO4_CONT,
870 .desc.enable_mask = DA9062AA_LDO4_EN_MASK,
871 .desc.vsel_reg = DA9062AA_VLDO4_A,
872 .desc.vsel_mask = DA9062AA_VLDO4_A_MASK,
873 .desc.linear_min_sel = 0,
874 .sleep = REG_FIELD(DA9062AA_VLDO4_A,
875 __builtin_ffs((int)DA9062AA_LDO4_SL_A_MASK) - 1,
876 sizeof(unsigned int) * 8 -
877 __builtin_clz((DA9062AA_LDO4_SL_A_MASK)) - 1),
878 .suspend_sleep = REG_FIELD(DA9062AA_VLDO4_B,
879 __builtin_ffs((int)DA9062AA_LDO4_SL_B_MASK) - 1,
880 sizeof(unsigned int) * 8 -
881 __builtin_clz((DA9062AA_LDO4_SL_B_MASK)) - 1),
882 .suspend_vsel_reg = DA9062AA_VLDO4_B,
883 .suspend = REG_FIELD(DA9062AA_DVC_1,
884 __builtin_ffs((int)DA9062AA_VLDO4_SEL_MASK) - 1,
885 sizeof(unsigned int) * 8 -
886 __builtin_clz((DA9062AA_VLDO4_SEL_MASK)) - 1),
887 .oc_event = REG_FIELD(DA9062AA_STATUS_D,
888 __builtin_ffs((int)DA9062AA_LDO4_ILIM_MASK) - 1,
889 sizeof(unsigned int) * 8 -
890 __builtin_clz((DA9062AA_LDO4_ILIM_MASK)) - 1),
891 },
892};
893
894/* Regulator interrupt handlers */
895static irqreturn_t da9062_ldo_lim_event(int irq, void *data)
896{
897 struct da9062_regulators *regulators = data;
898 struct da9062 *hw = regulators->regulator[0].hw;
899 struct da9062_regulator *regl;
900 int handled = IRQ_NONE;
901 int bits, i, ret;
902
903 ret = regmap_read(hw->regmap, DA9062AA_STATUS_D, &bits);
904 if (ret < 0) {
905 dev_err(hw->dev,
906 "Failed to read LDO overcurrent indicator\n");
907 goto ldo_lim_error;
908 }
909
910 for (i = regulators->n_regulators - 1; i >= 0; i--) {
911 regl = &regulators->regulator[i];
912 if (regl->info->oc_event.reg != DA9062AA_STATUS_D)
913 continue;
914
915 if (BIT(regl->info->oc_event.lsb) & bits) {
978995de 916 regulator_lock(regl->rdev);
4068e518
T		 917 regulator_notifier_call_chain(regl->rdev,
918 REGULATOR_EVENT_OVER_CURRENT, NULL);
978995de 919 regulator_unlock(regl->rdev);
4068e518
T		 920 handled = IRQ_HANDLED;
921 }
922 }
923
924ldo_lim_error:
925 return handled;
926}
927
928static int da9062_regulator_probe(struct platform_device *pdev)
929{
930 struct da9062 *chip = dev_get_drvdata(pdev->dev.parent);
4068e518
T		 931 struct da9062_regulators *regulators;
932 struct da9062_regulator *regl;
933 struct regulator_config config = { };
4b7f4958 934 const struct da9062_regulator_info *rinfo;
4068e518 935 int irq, n, ret;
4b7f4958
ST		 936 int max_regulators;
937
938 switch (chip->chip_type) {
939 case COMPAT_TYPE_DA9061:
940 max_regulators = DA9061_MAX_REGULATORS;
941 rinfo = local_da9061_regulator_info;
942 break;
943 case COMPAT_TYPE_DA9062:
944 max_regulators = DA9062_MAX_REGULATORS;
945 rinfo = local_da9062_regulator_info;
946 break;
947 default:
948 dev_err(chip->dev, "Unrecognised chip type\n");
949 return -ENODEV;
950 }
4068e518
T		 951
952 /* Allocate memory required by usable regulators */
97b047e7
GS		 953 regulators = devm_kzalloc(&pdev->dev, struct_size(regulators, regulator,
954 max_regulators), GFP_KERNEL);
4068e518
T		 955 if (!regulators)
956 return -ENOMEM;
957
4b7f4958 958 regulators->n_regulators = max_regulators;
4068e518
T		 959 platform_set_drvdata(pdev, regulators);
960
961 n = 0;
962 while (n < regulators->n_regulators) {
963 /* Initialise regulator structure */
964 regl = &regulators->regulator[n];
965 regl->hw = chip;
4b7f4958 966 regl->info = &rinfo[n];
4068e518
T		 967 regl->desc = regl->info->desc;
968 regl->desc.type = REGULATOR_VOLTAGE;
969 regl->desc.owner = THIS_MODULE;
970
54129d64 971 if (regl->info->mode.reg) {
4068e518
T		 972 regl->mode = devm_regmap_field_alloc(
973 &pdev->dev,
974 chip->regmap,
975 regl->info->mode);
54129d64
AL		 976 if (IS_ERR(regl->mode))
977 return PTR_ERR(regl->mode);
978 }
979
980 if (regl->info->suspend.reg) {
4068e518
T		 981 regl->suspend = devm_regmap_field_alloc(
982 &pdev->dev,
983 chip->regmap,
984 regl->info->suspend);
54129d64
AL		 985 if (IS_ERR(regl->suspend))
986 return PTR_ERR(regl->suspend);
987 }
988
989 if (regl->info->sleep.reg) {
4068e518
T		 990 regl->sleep = devm_regmap_field_alloc(
991 &pdev->dev,
992 chip->regmap,
993 regl->info->sleep);
54129d64
AL		 994 if (IS_ERR(regl->sleep))
995 return PTR_ERR(regl->sleep);
996 }
997
998 if (regl->info->suspend_sleep.reg) {
4068e518
T		 999 regl->suspend_sleep = devm_regmap_field_alloc(
1000 &pdev->dev,
1001 chip->regmap,
1002 regl->info->suspend_sleep);
54129d64
AL		 1003 if (IS_ERR(regl->suspend_sleep))
1004 return PTR_ERR(regl->suspend_sleep);
1005 }
1006
4068e518
T		 1007 /* Register regulator */
1008 memset(&config, 0, sizeof(config));
1009 config.dev = chip->dev;
1010 config.driver_data = regl;
1011 config.regmap = chip->regmap;
1012
1013 regl->rdev = devm_regulator_register(&pdev->dev, &regl->desc,
1014 &config);
1015 if (IS_ERR(regl->rdev)) {
1016 dev_err(&pdev->dev,
1017 "Failed to register %s regulator\n",
1018 regl->desc.name);
1019 return PTR_ERR(regl->rdev);
1020 }
1021
1022 n++;
1023 }
1024
1025 /* LDOs overcurrent event support */
1026 irq = platform_get_irq_byname(pdev, "LDO_LIM");
1027 if (irq < 0) {
1028 dev_err(&pdev->dev, "Failed to get IRQ.\n");
1029 return irq;
1030 }
1031 regulators->irq_ldo_lim = irq;
1032
1033 ret = devm_request_threaded_irq(&pdev->dev, irq,
1034 NULL, da9062_ldo_lim_event,
1035 IRQF_TRIGGER_LOW | IRQF_ONESHOT,
1036 "LDO_LIM", regulators);
1037 if (ret) {
1038 dev_warn(&pdev->dev,
1039 "Failed to request LDO_LIM IRQ.\n");
1040 regulators->irq_ldo_lim = -ENXIO;
1041 }
1042
1043 return 0;
1044}
1045
1046static struct platform_driver da9062_regulator_driver = {
1047 .driver = {
1048 .name = "da9062-regulators",
4068e518
T		 1049 },
1050 .probe = da9062_regulator_probe,
1051};
1052
1053static int __init da9062_regulator_init(void)
1054{
1055 return platform_driver_register(&da9062_regulator_driver);
1056}
1057subsys_initcall(da9062_regulator_init);
1058
1059static void __exit da9062_regulator_cleanup(void)
1060{
1061 platform_driver_unregister(&da9062_regulator_driver);
1062}
1063module_exit(da9062_regulator_cleanup);
1064
1065/* Module information */
1066MODULE_AUTHOR("S Twiss <stwiss.opensource@diasemi.com>");
4b7f4958 1067MODULE_DESCRIPTION("REGULATOR device driver for Dialog DA9062 and DA9061");
4068e518 1068MODULE_LICENSE("GPL");
ea6254e5 1069MODULE_ALIAS("platform:da9062-regulators");
Linux 6.x block layer and io_uring tree(s)