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1// SPDX-License-Identifier: GPL-2.0+
2//
3// Regulator device driver for DA9061 and DA9062.
4// Copyright (C) 2015-2017 Dialog Semiconductor
5
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#include <dt-bindings/regulator/dlg,da9063-regulator.h>
20
21/* Regulator IDs */
22enum {
23 DA9061_ID_BUCK1,
24 DA9061_ID_BUCK2,
25 DA9061_ID_BUCK3,
26 DA9061_ID_LDO1,
27 DA9061_ID_LDO2,
28 DA9061_ID_LDO3,
29 DA9061_ID_LDO4,
30 DA9061_MAX_REGULATORS,
31};
32
33enum {
34 DA9062_ID_BUCK1,
35 DA9062_ID_BUCK2,
36 DA9062_ID_BUCK3,
37 DA9062_ID_BUCK4,
38 DA9062_ID_LDO1,
39 DA9062_ID_LDO2,
40 DA9062_ID_LDO3,
41 DA9062_ID_LDO4,
42 DA9062_MAX_REGULATORS,
43};
44
45/* Regulator capabilities and registers description */
46struct da9062_regulator_info {
47 struct regulator_desc desc;
48 /* Main register fields */
49 struct reg_field mode;
50 struct reg_field suspend;
51 struct reg_field sleep;
52 struct reg_field suspend_sleep;
53 unsigned int suspend_vsel_reg;
54 /* Event detection bit */
55 struct reg_field oc_event;
56};
57
58/* Single regulator settings */
59struct da9062_regulator {
60 struct regulator_desc desc;
61 struct regulator_dev *rdev;
62 struct da9062 *hw;
63 const struct da9062_regulator_info *info;
64
65 struct regmap_field *mode;
66 struct regmap_field *suspend;
67 struct regmap_field *sleep;
68 struct regmap_field *suspend_sleep;
69};
70
71/* Encapsulates all information for the regulators driver */
72struct da9062_regulators {
73 int irq_ldo_lim;
74 unsigned n_regulators;
75 /* Array size to be defined during init. Keep at end. */
76 struct da9062_regulator regulator[] __counted_by(n_regulators);
77};
78
79/* Regulator operations */
80
81/* Current limits array (in uA)
82 * - DA9061_ID_[BUCK1|BUCK3]
83 * - DA9062_ID_[BUCK1|BUCK2|BUCK4]
84 * Entry indexes corresponds to register values.
85 */
86static const unsigned int da9062_buck_a_limits[] = {
87 500000, 600000, 700000, 800000, 900000, 1000000, 1100000, 1200000,
88 1300000, 1400000, 1500000, 1600000, 1700000, 1800000, 1900000, 2000000
89};
90
91/* Current limits array (in uA)
92 * - DA9061_ID_BUCK2
93 * - DA9062_ID_BUCK3
94 * Entry indexes corresponds to register values.
95 */
96static const unsigned int da9062_buck_b_limits[] = {
97 1500000, 1600000, 1700000, 1800000, 1900000, 2000000, 2100000, 2200000,
98 2300000, 2400000, 2500000, 2600000, 2700000, 2800000, 2900000, 3000000
99};
100
101static unsigned int da9062_map_buck_mode(unsigned int mode)
102{
103 switch (mode) {
104 case DA9063_BUCK_MODE_SLEEP:
105 return REGULATOR_MODE_STANDBY;
106 case DA9063_BUCK_MODE_SYNC:
107 return REGULATOR_MODE_FAST;
108 case DA9063_BUCK_MODE_AUTO:
109 return REGULATOR_MODE_NORMAL;
110 default:
111 return REGULATOR_MODE_INVALID;
112 }
113}
114
115static int da9062_buck_set_mode(struct regulator_dev *rdev, unsigned mode)
116{
117 struct da9062_regulator *regl = rdev_get_drvdata(rdev);
118 unsigned val;
119
120 switch (mode) {
121 case REGULATOR_MODE_FAST:
122 val = DA9063_BUCK_MODE_SYNC;
123 break;
124 case REGULATOR_MODE_NORMAL:
125 val = DA9063_BUCK_MODE_AUTO;
126 break;
127 case REGULATOR_MODE_STANDBY:
128 val = DA9063_BUCK_MODE_SLEEP;
129 break;
130 default:
131 return -EINVAL;
132 }
133
134 return regmap_field_write(regl->mode, val);
135}
136
137/*
138 * Bucks use single mode register field for normal operation
139 * and suspend state.
140 * There are 3 modes to map to: FAST, NORMAL, and STANDBY.
141 */
142
143static unsigned da9062_buck_get_mode(struct regulator_dev *rdev)
144{
145 struct da9062_regulator *regl = rdev_get_drvdata(rdev);
146 unsigned int val;
147 int ret;
148
149 ret = regmap_field_read(regl->mode, &val);
150 if (ret < 0)
151 return ret;
152
153 switch (val) {
154 default:
155 /* Sleep flag bit decides the mode */
156 break;
157 case DA9063_BUCK_MODE_SLEEP:
158 return REGULATOR_MODE_STANDBY;
159 case DA9063_BUCK_MODE_SYNC:
160 return REGULATOR_MODE_FAST;
161 case DA9063_BUCK_MODE_AUTO:
162 return REGULATOR_MODE_NORMAL;
163 }
164
165 ret = regmap_field_read(regl->sleep, &val);
166 if (ret < 0)
167 return 0;
168
169 if (val)
170 return REGULATOR_MODE_STANDBY;
171 else
172 return REGULATOR_MODE_FAST;
173}
174
175/*
176 * LDOs use sleep flags - one for normal and one for suspend state.
177 * There are 2 modes to map to: NORMAL and STANDBY (sleep) for each state.
178 */
179
180static int da9062_ldo_set_mode(struct regulator_dev *rdev, unsigned mode)
181{
182 struct da9062_regulator *regl = rdev_get_drvdata(rdev);
183 unsigned val;
184
185 switch (mode) {
186 case REGULATOR_MODE_NORMAL:
187 val = 0;
188 break;
189 case REGULATOR_MODE_STANDBY:
190 val = 1;
191 break;
192 default:
193 return -EINVAL;
194 }
195
196 return regmap_field_write(regl->sleep, val);
197}
198
199static unsigned da9062_ldo_get_mode(struct regulator_dev *rdev)
200{
201 struct da9062_regulator *regl = rdev_get_drvdata(rdev);
202 int ret, val;
203
204 ret = regmap_field_read(regl->sleep, &val);
205 if (ret < 0)
206 return 0;
207
208 if (val)
209 return REGULATOR_MODE_STANDBY;
210 else
211 return REGULATOR_MODE_NORMAL;
212}
213
214static int da9062_buck_get_status(struct regulator_dev *rdev)
215{
216 int ret = regulator_is_enabled_regmap(rdev);
217
218 if (ret == 0) {
219 ret = REGULATOR_STATUS_OFF;
220 } else if (ret > 0) {
221 ret = da9062_buck_get_mode(rdev);
222 if (ret > 0)
223 ret = regulator_mode_to_status(ret);
224 else if (ret == 0)
225 ret = -EIO;
226 }
227
228 return ret;
229}
230
231static int da9062_ldo_get_status(struct regulator_dev *rdev)
232{
233 int ret = regulator_is_enabled_regmap(rdev);
234
235 if (ret == 0) {
236 ret = REGULATOR_STATUS_OFF;
237 } else if (ret > 0) {
238 ret = da9062_ldo_get_mode(rdev);
239 if (ret > 0)
240 ret = regulator_mode_to_status(ret);
241 else if (ret == 0)
242 ret = -EIO;
243 }
244
245 return ret;
246}
247
248static int da9062_set_suspend_voltage(struct regulator_dev *rdev, int uv)
249{
250 struct da9062_regulator *regl = rdev_get_drvdata(rdev);
251 const struct da9062_regulator_info *rinfo = regl->info;
252 int ret, sel;
253
254 sel = regulator_map_voltage_linear(rdev, uv, uv);
255 if (sel < 0)
256 return sel;
257
258 sel <<= ffs(rdev->desc->vsel_mask) - 1;
259
260 ret = regmap_update_bits(regl->hw->regmap, rinfo->suspend_vsel_reg,
261 rdev->desc->vsel_mask, sel);
262
263 return ret;
264}
265
266static int da9062_suspend_enable(struct regulator_dev *rdev)
267{
268 struct da9062_regulator *regl = rdev_get_drvdata(rdev);
269
270 return regmap_field_write(regl->suspend, 1);
271}
272
273static int da9062_suspend_disable(struct regulator_dev *rdev)
274{
275 struct da9062_regulator *regl = rdev_get_drvdata(rdev);
276
277 return regmap_field_write(regl->suspend, 0);
278}
279
280static int da9062_buck_set_suspend_mode(struct regulator_dev *rdev,
281 unsigned mode)
282{
283 struct da9062_regulator *regl = rdev_get_drvdata(rdev);
284 int val;
285
286 switch (mode) {
287 case REGULATOR_MODE_FAST:
288 val = DA9063_BUCK_MODE_SYNC;
289 break;
290 case REGULATOR_MODE_NORMAL:
291 val = DA9063_BUCK_MODE_AUTO;
292 break;
293 case REGULATOR_MODE_STANDBY:
294 val = DA9063_BUCK_MODE_SLEEP;
295 break;
296 default:
297 return -EINVAL;
298 }
299
300 return regmap_field_write(regl->mode, val);
301}
302
303static int da9062_ldo_set_suspend_mode(struct regulator_dev *rdev,
304 unsigned mode)
305{
306 struct da9062_regulator *regl = rdev_get_drvdata(rdev);
307 unsigned val;
308
309 switch (mode) {
310 case REGULATOR_MODE_NORMAL:
311 val = 0;
312 break;
313 case REGULATOR_MODE_STANDBY:
314 val = 1;
315 break;
316 default:
317 return -EINVAL;
318 }
319
320 return regmap_field_write(regl->suspend_sleep, val);
321}
322
323static const struct regulator_ops da9062_buck_ops = {
324 .enable = regulator_enable_regmap,
325 .disable = regulator_disable_regmap,
326 .is_enabled = regulator_is_enabled_regmap,
327 .get_voltage_sel = regulator_get_voltage_sel_regmap,
328 .set_voltage_sel = regulator_set_voltage_sel_regmap,
329 .list_voltage = regulator_list_voltage_linear,
330 .set_current_limit = regulator_set_current_limit_regmap,
331 .get_current_limit = regulator_get_current_limit_regmap,
332 .set_mode = da9062_buck_set_mode,
333 .get_mode = da9062_buck_get_mode,
334 .get_status = da9062_buck_get_status,
335 .set_suspend_voltage = da9062_set_suspend_voltage,
336 .set_suspend_enable = da9062_suspend_enable,
337 .set_suspend_disable = da9062_suspend_disable,
338 .set_suspend_mode = da9062_buck_set_suspend_mode,
339};
340
341static const struct regulator_ops da9062_ldo_ops = {
342 .enable = regulator_enable_regmap,
343 .disable = regulator_disable_regmap,
344 .is_enabled = regulator_is_enabled_regmap,
345 .get_voltage_sel = regulator_get_voltage_sel_regmap,
346 .set_voltage_sel = regulator_set_voltage_sel_regmap,
347 .list_voltage = regulator_list_voltage_linear,
348 .set_mode = da9062_ldo_set_mode,
349 .get_mode = da9062_ldo_get_mode,
350 .get_status = da9062_ldo_get_status,
351 .set_suspend_voltage = da9062_set_suspend_voltage,
352 .set_suspend_enable = da9062_suspend_enable,
353 .set_suspend_disable = da9062_suspend_disable,
354 .set_suspend_mode = da9062_ldo_set_suspend_mode,
355};
356
357/* DA9061 Regulator information */
358static const struct da9062_regulator_info local_da9061_regulator_info[] = {
359 {
360 .desc.id = DA9061_ID_BUCK1,
361 .desc.name = "DA9061 BUCK1",
362 .desc.of_match = of_match_ptr("buck1"),
363 .desc.regulators_node = of_match_ptr("regulators"),
364 .desc.ops = &da9062_buck_ops,
365 .desc.min_uV = (300) * 1000,
366 .desc.uV_step = (10) * 1000,
367 .desc.n_voltages = ((1570) - (300))/(10) + 1,
368 .desc.curr_table = da9062_buck_a_limits,
369 .desc.n_current_limits = ARRAY_SIZE(da9062_buck_a_limits),
370 .desc.csel_reg = DA9062AA_BUCK_ILIM_C,
371 .desc.csel_mask = DA9062AA_BUCK1_ILIM_MASK,
372 .desc.enable_reg = DA9062AA_BUCK1_CONT,
373 .desc.enable_mask = DA9062AA_BUCK1_EN_MASK,
374 .desc.vsel_reg = DA9062AA_VBUCK1_A,
375 .desc.vsel_mask = DA9062AA_VBUCK1_A_MASK,
376 .desc.linear_min_sel = 0,
377 .desc.of_map_mode = da9062_map_buck_mode,
378 .sleep = REG_FIELD(DA9062AA_VBUCK1_A,
379 __builtin_ffs((int)DA9062AA_BUCK1_SL_A_MASK) - 1,
380 sizeof(unsigned int) * 8 -
381 __builtin_clz((DA9062AA_BUCK1_SL_A_MASK)) - 1),
382 .suspend_sleep = REG_FIELD(DA9062AA_VBUCK1_B,
383 __builtin_ffs((int)DA9062AA_BUCK1_SL_B_MASK) - 1,
384 sizeof(unsigned int) * 8 -
385 __builtin_clz((DA9062AA_BUCK1_SL_B_MASK)) - 1),
386 .suspend_vsel_reg = DA9062AA_VBUCK1_B,
387 .mode = REG_FIELD(DA9062AA_BUCK1_CFG,
388 __builtin_ffs((int)DA9062AA_BUCK1_MODE_MASK) - 1,
389 sizeof(unsigned int) * 8 -
390 __builtin_clz((DA9062AA_BUCK1_MODE_MASK)) - 1),
391 .suspend = REG_FIELD(DA9062AA_BUCK1_CONT,
392 __builtin_ffs((int)DA9062AA_BUCK1_CONF_MASK) - 1,
393 sizeof(unsigned int) * 8 -
394 __builtin_clz(DA9062AA_BUCK1_CONF_MASK) - 1),
395 },
396 {
397 .desc.id = DA9061_ID_BUCK2,
398 .desc.name = "DA9061 BUCK2",
399 .desc.of_match = of_match_ptr("buck2"),
400 .desc.regulators_node = of_match_ptr("regulators"),
401 .desc.ops = &da9062_buck_ops,
402 .desc.min_uV = (800) * 1000,
403 .desc.uV_step = (20) * 1000,
404 .desc.n_voltages = ((3340) - (800))/(20) + 1,
405 .desc.curr_table = da9062_buck_b_limits,
406 .desc.n_current_limits = ARRAY_SIZE(da9062_buck_b_limits),
407 .desc.csel_reg = DA9062AA_BUCK_ILIM_A,
408 .desc.csel_mask = DA9062AA_BUCK3_ILIM_MASK,
409 .desc.enable_reg = DA9062AA_BUCK3_CONT,
410 .desc.enable_mask = DA9062AA_BUCK3_EN_MASK,
411 .desc.vsel_reg = DA9062AA_VBUCK3_A,
412 .desc.vsel_mask = DA9062AA_VBUCK3_A_MASK,
413 .desc.linear_min_sel = 0,
414 .desc.of_map_mode = da9062_map_buck_mode,
415 .sleep = REG_FIELD(DA9062AA_VBUCK3_A,
416 __builtin_ffs((int)DA9062AA_BUCK3_SL_A_MASK) - 1,
417 sizeof(unsigned int) * 8 -
418 __builtin_clz((DA9062AA_BUCK3_SL_A_MASK)) - 1),
419 .suspend_sleep = REG_FIELD(DA9062AA_VBUCK3_B,
420 __builtin_ffs((int)DA9062AA_BUCK3_SL_B_MASK) - 1,
421 sizeof(unsigned int) * 8 -
422 __builtin_clz((DA9062AA_BUCK3_SL_B_MASK)) - 1),
423 .suspend_vsel_reg = DA9062AA_VBUCK3_B,
424 .mode = REG_FIELD(DA9062AA_BUCK3_CFG,
425 __builtin_ffs((int)DA9062AA_BUCK3_MODE_MASK) - 1,
426 sizeof(unsigned int) * 8 -
427 __builtin_clz((DA9062AA_BUCK3_MODE_MASK)) - 1),
428 .suspend = REG_FIELD(DA9062AA_BUCK3_CONT,
429 __builtin_ffs((int)DA9062AA_BUCK3_CONF_MASK) - 1,
430 sizeof(unsigned int) * 8 -
431 __builtin_clz(DA9062AA_BUCK3_CONF_MASK) - 1),
432 },
433 {
434 .desc.id = DA9061_ID_BUCK3,
435 .desc.name = "DA9061 BUCK3",
436 .desc.of_match = of_match_ptr("buck3"),
437 .desc.regulators_node = of_match_ptr("regulators"),
438 .desc.ops = &da9062_buck_ops,
439 .desc.min_uV = (530) * 1000,
440 .desc.uV_step = (10) * 1000,
441 .desc.n_voltages = ((1800) - (530))/(10) + 1,
442 .desc.curr_table = da9062_buck_a_limits,
443 .desc.n_current_limits = ARRAY_SIZE(da9062_buck_a_limits),
444 .desc.csel_reg = DA9062AA_BUCK_ILIM_B,
445 .desc.csel_mask = DA9062AA_BUCK4_ILIM_MASK,
446 .desc.enable_reg = DA9062AA_BUCK4_CONT,
447 .desc.enable_mask = DA9062AA_BUCK4_EN_MASK,
448 .desc.vsel_reg = DA9062AA_VBUCK4_A,
449 .desc.vsel_mask = DA9062AA_VBUCK4_A_MASK,
450 .desc.linear_min_sel = 0,
451 .desc.of_map_mode = da9062_map_buck_mode,
452 .sleep = REG_FIELD(DA9062AA_VBUCK4_A,
453 __builtin_ffs((int)DA9062AA_BUCK4_SL_A_MASK) - 1,
454 sizeof(unsigned int) * 8 -
455 __builtin_clz((DA9062AA_BUCK4_SL_A_MASK)) - 1),
456 .suspend_sleep = REG_FIELD(DA9062AA_VBUCK4_B,
457 __builtin_ffs((int)DA9062AA_BUCK4_SL_B_MASK) - 1,
458 sizeof(unsigned int) * 8 -
459 __builtin_clz((DA9062AA_BUCK4_SL_B_MASK)) - 1),
460 .suspend_vsel_reg = DA9062AA_VBUCK4_B,
461 .mode = REG_FIELD(DA9062AA_BUCK4_CFG,
462 __builtin_ffs((int)DA9062AA_BUCK4_MODE_MASK) - 1,
463 sizeof(unsigned int) * 8 -
464 __builtin_clz((DA9062AA_BUCK4_MODE_MASK)) - 1),
465 .suspend = REG_FIELD(DA9062AA_BUCK4_CONT,
466 __builtin_ffs((int)DA9062AA_BUCK4_CONF_MASK) - 1,
467 sizeof(unsigned int) * 8 -
468 __builtin_clz(DA9062AA_BUCK4_CONF_MASK) - 1),
469 },
470 {
471 .desc.id = DA9061_ID_LDO1,
472 .desc.name = "DA9061 LDO1",
473 .desc.of_match = of_match_ptr("ldo1"),
474 .desc.regulators_node = of_match_ptr("regulators"),
475 .desc.ops = &da9062_ldo_ops,
476 .desc.min_uV = (900) * 1000,
477 .desc.uV_step = (50) * 1000,
478 .desc.n_voltages = ((3600) - (900))/(50) + 1
479 + DA9062AA_VLDO_A_MIN_SEL,
480 .desc.enable_reg = DA9062AA_LDO1_CONT,
481 .desc.enable_mask = DA9062AA_LDO1_EN_MASK,
482 .desc.vsel_reg = DA9062AA_VLDO1_A,
483 .desc.vsel_mask = DA9062AA_VLDO1_A_MASK,
484 .desc.linear_min_sel = DA9062AA_VLDO_A_MIN_SEL,
485 .sleep = REG_FIELD(DA9062AA_VLDO1_A,
486 __builtin_ffs((int)DA9062AA_LDO1_SL_A_MASK) - 1,
487 sizeof(unsigned int) * 8 -
488 __builtin_clz((DA9062AA_LDO1_SL_A_MASK)) - 1),
489 .suspend_sleep = REG_FIELD(DA9062AA_VLDO1_B,
490 __builtin_ffs((int)DA9062AA_LDO1_SL_B_MASK) - 1,
491 sizeof(unsigned int) * 8 -
492 __builtin_clz((DA9062AA_LDO1_SL_B_MASK)) - 1),
493 .suspend_vsel_reg = DA9062AA_VLDO1_B,
494 .suspend = REG_FIELD(DA9062AA_LDO1_CONT,
495 __builtin_ffs((int)DA9062AA_LDO1_CONF_MASK) - 1,
496 sizeof(unsigned int) * 8 -
497 __builtin_clz(DA9062AA_LDO1_CONF_MASK) - 1),
498 .oc_event = REG_FIELD(DA9062AA_STATUS_D,
499 __builtin_ffs((int)DA9062AA_LDO1_ILIM_MASK) - 1,
500 sizeof(unsigned int) * 8 -
501 __builtin_clz((DA9062AA_LDO1_ILIM_MASK)) - 1),
502 },
503 {
504 .desc.id = DA9061_ID_LDO2,
505 .desc.name = "DA9061 LDO2",
506 .desc.of_match = of_match_ptr("ldo2"),
507 .desc.regulators_node = of_match_ptr("regulators"),
508 .desc.ops = &da9062_ldo_ops,
509 .desc.min_uV = (900) * 1000,
510 .desc.uV_step = (50) * 1000,
511 .desc.n_voltages = ((3600) - (900))/(50) + 1
512 + DA9062AA_VLDO_A_MIN_SEL,
513 .desc.enable_reg = DA9062AA_LDO2_CONT,
514 .desc.enable_mask = DA9062AA_LDO2_EN_MASK,
515 .desc.vsel_reg = DA9062AA_VLDO2_A,
516 .desc.vsel_mask = DA9062AA_VLDO2_A_MASK,
517 .desc.linear_min_sel = DA9062AA_VLDO_A_MIN_SEL,
518 .sleep = REG_FIELD(DA9062AA_VLDO2_A,
519 __builtin_ffs((int)DA9062AA_LDO2_SL_A_MASK) - 1,
520 sizeof(unsigned int) * 8 -
521 __builtin_clz((DA9062AA_LDO2_SL_A_MASK)) - 1),
522 .suspend_sleep = REG_FIELD(DA9062AA_VLDO2_B,
523 __builtin_ffs((int)DA9062AA_LDO2_SL_B_MASK) - 1,
524 sizeof(unsigned int) * 8 -
525 __builtin_clz((DA9062AA_LDO2_SL_B_MASK)) - 1),
526 .suspend_vsel_reg = DA9062AA_VLDO2_B,
527 .suspend = REG_FIELD(DA9062AA_LDO2_CONT,
528 __builtin_ffs((int)DA9062AA_LDO2_CONF_MASK) - 1,
529 sizeof(unsigned int) * 8 -
530 __builtin_clz(DA9062AA_LDO2_CONF_MASK) - 1),
531 .oc_event = REG_FIELD(DA9062AA_STATUS_D,
532 __builtin_ffs((int)DA9062AA_LDO2_ILIM_MASK) - 1,
533 sizeof(unsigned int) * 8 -
534 __builtin_clz((DA9062AA_LDO2_ILIM_MASK)) - 1),
535 },
536 {
537 .desc.id = DA9061_ID_LDO3,
538 .desc.name = "DA9061 LDO3",
539 .desc.of_match = of_match_ptr("ldo3"),
540 .desc.regulators_node = of_match_ptr("regulators"),
541 .desc.ops = &da9062_ldo_ops,
542 .desc.min_uV = (900) * 1000,
543 .desc.uV_step = (50) * 1000,
544 .desc.n_voltages = ((3600) - (900))/(50) + 1
545 + DA9062AA_VLDO_A_MIN_SEL,
546 .desc.enable_reg = DA9062AA_LDO3_CONT,
547 .desc.enable_mask = DA9062AA_LDO3_EN_MASK,
548 .desc.vsel_reg = DA9062AA_VLDO3_A,
549 .desc.vsel_mask = DA9062AA_VLDO3_A_MASK,
550 .desc.linear_min_sel = DA9062AA_VLDO_A_MIN_SEL,
551 .sleep = REG_FIELD(DA9062AA_VLDO3_A,
552 __builtin_ffs((int)DA9062AA_LDO3_SL_A_MASK) - 1,
553 sizeof(unsigned int) * 8 -
554 __builtin_clz((DA9062AA_LDO3_SL_A_MASK)) - 1),
555 .suspend_sleep = REG_FIELD(DA9062AA_VLDO3_B,
556 __builtin_ffs((int)DA9062AA_LDO3_SL_B_MASK) - 1,
557 sizeof(unsigned int) * 8 -
558 __builtin_clz((DA9062AA_LDO3_SL_B_MASK)) - 1),
559 .suspend_vsel_reg = DA9062AA_VLDO3_B,
560 .suspend = REG_FIELD(DA9062AA_LDO3_CONT,
561 __builtin_ffs((int)DA9062AA_LDO3_CONF_MASK) - 1,
562 sizeof(unsigned int) * 8 -
563 __builtin_clz(DA9062AA_LDO3_CONF_MASK) - 1),
564 .oc_event = REG_FIELD(DA9062AA_STATUS_D,
565 __builtin_ffs((int)DA9062AA_LDO3_ILIM_MASK) - 1,
566 sizeof(unsigned int) * 8 -
567 __builtin_clz((DA9062AA_LDO3_ILIM_MASK)) - 1),
568 },
569 {
570 .desc.id = DA9061_ID_LDO4,
571 .desc.name = "DA9061 LDO4",
572 .desc.of_match = of_match_ptr("ldo4"),
573 .desc.regulators_node = of_match_ptr("regulators"),
574 .desc.ops = &da9062_ldo_ops,
575 .desc.min_uV = (900) * 1000,
576 .desc.uV_step = (50) * 1000,
577 .desc.n_voltages = ((3600) - (900))/(50) + 1
578 + DA9062AA_VLDO_A_MIN_SEL,
579 .desc.enable_reg = DA9062AA_LDO4_CONT,
580 .desc.enable_mask = DA9062AA_LDO4_EN_MASK,
581 .desc.vsel_reg = DA9062AA_VLDO4_A,
582 .desc.vsel_mask = DA9062AA_VLDO4_A_MASK,
583 .desc.linear_min_sel = DA9062AA_VLDO_A_MIN_SEL,
584 .sleep = REG_FIELD(DA9062AA_VLDO4_A,
585 __builtin_ffs((int)DA9062AA_LDO4_SL_A_MASK) - 1,
586 sizeof(unsigned int) * 8 -
587 __builtin_clz((DA9062AA_LDO4_SL_A_MASK)) - 1),
588 .suspend_sleep = REG_FIELD(DA9062AA_VLDO4_B,
589 __builtin_ffs((int)DA9062AA_LDO4_SL_B_MASK) - 1,
590 sizeof(unsigned int) * 8 -
591 __builtin_clz((DA9062AA_LDO4_SL_B_MASK)) - 1),
592 .suspend_vsel_reg = DA9062AA_VLDO4_B,
593 .suspend = REG_FIELD(DA9062AA_LDO4_CONT,
594 __builtin_ffs((int)DA9062AA_LDO4_CONF_MASK) - 1,
595 sizeof(unsigned int) * 8 -
596 __builtin_clz(DA9062AA_LDO4_CONF_MASK) - 1),
597 .oc_event = REG_FIELD(DA9062AA_STATUS_D,
598 __builtin_ffs((int)DA9062AA_LDO4_ILIM_MASK) - 1,
599 sizeof(unsigned int) * 8 -
600 __builtin_clz((DA9062AA_LDO4_ILIM_MASK)) - 1),
601 },
602};
603
604/* DA9062 Regulator information */
605static const struct da9062_regulator_info local_da9062_regulator_info[] = {
606 {
607 .desc.id = DA9062_ID_BUCK1,
608 .desc.name = "DA9062 BUCK1",
609 .desc.of_match = of_match_ptr("buck1"),
610 .desc.regulators_node = of_match_ptr("regulators"),
611 .desc.ops = &da9062_buck_ops,
612 .desc.min_uV = (300) * 1000,
613 .desc.uV_step = (10) * 1000,
614 .desc.n_voltages = ((1570) - (300))/(10) + 1,
615 .desc.curr_table = da9062_buck_a_limits,
616 .desc.n_current_limits = ARRAY_SIZE(da9062_buck_a_limits),
617 .desc.csel_reg = DA9062AA_BUCK_ILIM_C,
618 .desc.csel_mask = DA9062AA_BUCK1_ILIM_MASK,
619 .desc.enable_reg = DA9062AA_BUCK1_CONT,
620 .desc.enable_mask = DA9062AA_BUCK1_EN_MASK,
621 .desc.vsel_reg = DA9062AA_VBUCK1_A,
622 .desc.vsel_mask = DA9062AA_VBUCK1_A_MASK,
623 .desc.linear_min_sel = 0,
624 .desc.of_map_mode = da9062_map_buck_mode,
625 .sleep = REG_FIELD(DA9062AA_VBUCK1_A,
626 __builtin_ffs((int)DA9062AA_BUCK1_SL_A_MASK) - 1,
627 sizeof(unsigned int) * 8 -
628 __builtin_clz((DA9062AA_BUCK1_SL_A_MASK)) - 1),
629 .suspend_sleep = REG_FIELD(DA9062AA_VBUCK1_B,
630 __builtin_ffs((int)DA9062AA_BUCK1_SL_B_MASK) - 1,
631 sizeof(unsigned int) * 8 -
632 __builtin_clz((DA9062AA_BUCK1_SL_B_MASK)) - 1),
633 .suspend_vsel_reg = DA9062AA_VBUCK1_B,
634 .mode = REG_FIELD(DA9062AA_BUCK1_CFG,
635 __builtin_ffs((int)DA9062AA_BUCK1_MODE_MASK) - 1,
636 sizeof(unsigned int) * 8 -
637 __builtin_clz((DA9062AA_BUCK1_MODE_MASK)) - 1),
638 .suspend = REG_FIELD(DA9062AA_BUCK1_CONT,
639 __builtin_ffs((int)DA9062AA_BUCK1_CONF_MASK) - 1,
640 sizeof(unsigned int) * 8 -
641 __builtin_clz(DA9062AA_BUCK1_CONF_MASK) - 1),
642 },
643 {
644 .desc.id = DA9062_ID_BUCK2,
645 .desc.name = "DA9062 BUCK2",
646 .desc.of_match = of_match_ptr("buck2"),
647 .desc.regulators_node = of_match_ptr("regulators"),
648 .desc.ops = &da9062_buck_ops,
649 .desc.min_uV = (300) * 1000,
650 .desc.uV_step = (10) * 1000,
651 .desc.n_voltages = ((1570) - (300))/(10) + 1,
652 .desc.curr_table = da9062_buck_a_limits,
653 .desc.n_current_limits = ARRAY_SIZE(da9062_buck_a_limits),
654 .desc.csel_reg = DA9062AA_BUCK_ILIM_C,
655 .desc.csel_mask = DA9062AA_BUCK2_ILIM_MASK,
656 .desc.enable_reg = DA9062AA_BUCK2_CONT,
657 .desc.enable_mask = DA9062AA_BUCK2_EN_MASK,
658 .desc.vsel_reg = DA9062AA_VBUCK2_A,
659 .desc.vsel_mask = DA9062AA_VBUCK2_A_MASK,
660 .desc.linear_min_sel = 0,
661 .desc.of_map_mode = da9062_map_buck_mode,
662 .sleep = REG_FIELD(DA9062AA_VBUCK2_A,
663 __builtin_ffs((int)DA9062AA_BUCK2_SL_A_MASK) - 1,
664 sizeof(unsigned int) * 8 -
665 __builtin_clz((DA9062AA_BUCK2_SL_A_MASK)) - 1),
666 .suspend_sleep = REG_FIELD(DA9062AA_VBUCK2_B,
667 __builtin_ffs((int)DA9062AA_BUCK2_SL_B_MASK) - 1,
668 sizeof(unsigned int) * 8 -
669 __builtin_clz((DA9062AA_BUCK2_SL_B_MASK)) - 1),
670 .suspend_vsel_reg = DA9062AA_VBUCK2_B,
671 .mode = REG_FIELD(DA9062AA_BUCK2_CFG,
672 __builtin_ffs((int)DA9062AA_BUCK2_MODE_MASK) - 1,
673 sizeof(unsigned int) * 8 -
674 __builtin_clz((DA9062AA_BUCK2_MODE_MASK)) - 1),
675 .suspend = REG_FIELD(DA9062AA_BUCK2_CONT,
676 __builtin_ffs((int)DA9062AA_BUCK2_CONF_MASK) - 1,
677 sizeof(unsigned int) * 8 -
678 __builtin_clz(DA9062AA_BUCK2_CONF_MASK) - 1),
679 },
680 {
681 .desc.id = DA9062_ID_BUCK3,
682 .desc.name = "DA9062 BUCK3",
683 .desc.of_match = of_match_ptr("buck3"),
684 .desc.regulators_node = of_match_ptr("regulators"),
685 .desc.ops = &da9062_buck_ops,
686 .desc.min_uV = (800) * 1000,
687 .desc.uV_step = (20) * 1000,
688 .desc.n_voltages = ((3340) - (800))/(20) + 1,
689 .desc.curr_table = da9062_buck_b_limits,
690 .desc.n_current_limits = ARRAY_SIZE(da9062_buck_b_limits),
691 .desc.csel_reg = DA9062AA_BUCK_ILIM_A,
692 .desc.csel_mask = DA9062AA_BUCK3_ILIM_MASK,
693 .desc.enable_reg = DA9062AA_BUCK3_CONT,
694 .desc.enable_mask = DA9062AA_BUCK3_EN_MASK,
695 .desc.vsel_reg = DA9062AA_VBUCK3_A,
696 .desc.vsel_mask = DA9062AA_VBUCK3_A_MASK,
697 .desc.linear_min_sel = 0,
698 .desc.of_map_mode = da9062_map_buck_mode,
699 .sleep = REG_FIELD(DA9062AA_VBUCK3_A,
700 __builtin_ffs((int)DA9062AA_BUCK3_SL_A_MASK) - 1,
701 sizeof(unsigned int) * 8 -
702 __builtin_clz((DA9062AA_BUCK3_SL_A_MASK)) - 1),
703 .suspend_sleep = REG_FIELD(DA9062AA_VBUCK3_B,
704 __builtin_ffs((int)DA9062AA_BUCK3_SL_B_MASK) - 1,
705 sizeof(unsigned int) * 8 -
706 __builtin_clz((DA9062AA_BUCK3_SL_B_MASK)) - 1),
707 .suspend_vsel_reg = DA9062AA_VBUCK3_B,
708 .mode = REG_FIELD(DA9062AA_BUCK3_CFG,
709 __builtin_ffs((int)DA9062AA_BUCK3_MODE_MASK) - 1,
710 sizeof(unsigned int) * 8 -
711 __builtin_clz((DA9062AA_BUCK3_MODE_MASK)) - 1),
712 .suspend = REG_FIELD(DA9062AA_BUCK3_CONT,
713 __builtin_ffs((int)DA9062AA_BUCK3_CONF_MASK) - 1,
714 sizeof(unsigned int) * 8 -
715 __builtin_clz(DA9062AA_BUCK3_CONF_MASK) - 1),
716 },
717 {
718 .desc.id = DA9062_ID_BUCK4,
719 .desc.name = "DA9062 BUCK4",
720 .desc.of_match = of_match_ptr("buck4"),
721 .desc.regulators_node = of_match_ptr("regulators"),
722 .desc.ops = &da9062_buck_ops,
723 .desc.min_uV = (530) * 1000,
724 .desc.uV_step = (10) * 1000,
725 .desc.n_voltages = ((1800) - (530))/(10) + 1,
726 .desc.curr_table = da9062_buck_a_limits,
727 .desc.n_current_limits = ARRAY_SIZE(da9062_buck_a_limits),
728 .desc.csel_reg = DA9062AA_BUCK_ILIM_B,
729 .desc.csel_mask = DA9062AA_BUCK4_ILIM_MASK,
730 .desc.enable_reg = DA9062AA_BUCK4_CONT,
731 .desc.enable_mask = DA9062AA_BUCK4_EN_MASK,
732 .desc.vsel_reg = DA9062AA_VBUCK4_A,
733 .desc.vsel_mask = DA9062AA_VBUCK4_A_MASK,
734 .desc.linear_min_sel = 0,
735 .desc.of_map_mode = da9062_map_buck_mode,
736 .sleep = REG_FIELD(DA9062AA_VBUCK4_A,
737 __builtin_ffs((int)DA9062AA_BUCK4_SL_A_MASK) - 1,
738 sizeof(unsigned int) * 8 -
739 __builtin_clz((DA9062AA_BUCK4_SL_A_MASK)) - 1),
740 .suspend_sleep = REG_FIELD(DA9062AA_VBUCK4_B,
741 __builtin_ffs((int)DA9062AA_BUCK4_SL_B_MASK) - 1,
742 sizeof(unsigned int) * 8 -
743 __builtin_clz((DA9062AA_BUCK4_SL_B_MASK)) - 1),
744 .suspend_vsel_reg = DA9062AA_VBUCK4_B,
745 .mode = REG_FIELD(DA9062AA_BUCK4_CFG,
746 __builtin_ffs((int)DA9062AA_BUCK4_MODE_MASK) - 1,
747 sizeof(unsigned int) * 8 -
748 __builtin_clz((DA9062AA_BUCK4_MODE_MASK)) - 1),
749 .suspend = REG_FIELD(DA9062AA_BUCK4_CONT,
750 __builtin_ffs((int)DA9062AA_BUCK4_CONF_MASK) - 1,
751 sizeof(unsigned int) * 8 -
752 __builtin_clz(DA9062AA_BUCK4_CONF_MASK) - 1),
753 },
754 {
755 .desc.id = DA9062_ID_LDO1,
756 .desc.name = "DA9062 LDO1",
757 .desc.of_match = of_match_ptr("ldo1"),
758 .desc.regulators_node = of_match_ptr("regulators"),
759 .desc.ops = &da9062_ldo_ops,
760 .desc.min_uV = (900) * 1000,
761 .desc.uV_step = (50) * 1000,
762 .desc.n_voltages = ((3600) - (900))/(50) + 1
763 + DA9062AA_VLDO_A_MIN_SEL,
764 .desc.enable_reg = DA9062AA_LDO1_CONT,
765 .desc.enable_mask = DA9062AA_LDO1_EN_MASK,
766 .desc.vsel_reg = DA9062AA_VLDO1_A,
767 .desc.vsel_mask = DA9062AA_VLDO1_A_MASK,
768 .desc.linear_min_sel = DA9062AA_VLDO_A_MIN_SEL,
769 .sleep = REG_FIELD(DA9062AA_VLDO1_A,
770 __builtin_ffs((int)DA9062AA_LDO1_SL_A_MASK) - 1,
771 sizeof(unsigned int) * 8 -
772 __builtin_clz((DA9062AA_LDO1_SL_A_MASK)) - 1),
773 .suspend_sleep = REG_FIELD(DA9062AA_VLDO1_B,
774 __builtin_ffs((int)DA9062AA_LDO1_SL_B_MASK) - 1,
775 sizeof(unsigned int) * 8 -
776 __builtin_clz((DA9062AA_LDO1_SL_B_MASK)) - 1),
777 .suspend_vsel_reg = DA9062AA_VLDO1_B,
778 .suspend = REG_FIELD(DA9062AA_LDO1_CONT,
779 __builtin_ffs((int)DA9062AA_LDO1_CONF_MASK) - 1,
780 sizeof(unsigned int) * 8 -
781 __builtin_clz(DA9062AA_LDO1_CONF_MASK) - 1),
782 .oc_event = REG_FIELD(DA9062AA_STATUS_D,
783 __builtin_ffs((int)DA9062AA_LDO1_ILIM_MASK) - 1,
784 sizeof(unsigned int) * 8 -
785 __builtin_clz((DA9062AA_LDO1_ILIM_MASK)) - 1),
786 },
787 {
788 .desc.id = DA9062_ID_LDO2,
789 .desc.name = "DA9062 LDO2",
790 .desc.of_match = of_match_ptr("ldo2"),
791 .desc.regulators_node = of_match_ptr("regulators"),
792 .desc.ops = &da9062_ldo_ops,
793 .desc.min_uV = (900) * 1000,
794 .desc.uV_step = (50) * 1000,
795 .desc.n_voltages = ((3600) - (900))/(50) + 1
796 + DA9062AA_VLDO_A_MIN_SEL,
797 .desc.enable_reg = DA9062AA_LDO2_CONT,
798 .desc.enable_mask = DA9062AA_LDO2_EN_MASK,
799 .desc.vsel_reg = DA9062AA_VLDO2_A,
800 .desc.vsel_mask = DA9062AA_VLDO2_A_MASK,
801 .desc.linear_min_sel = DA9062AA_VLDO_A_MIN_SEL,
802 .sleep = REG_FIELD(DA9062AA_VLDO2_A,
803 __builtin_ffs((int)DA9062AA_LDO2_SL_A_MASK) - 1,
804 sizeof(unsigned int) * 8 -
805 __builtin_clz((DA9062AA_LDO2_SL_A_MASK)) - 1),
806 .suspend_sleep = REG_FIELD(DA9062AA_VLDO2_B,
807 __builtin_ffs((int)DA9062AA_LDO2_SL_B_MASK) - 1,
808 sizeof(unsigned int) * 8 -
809 __builtin_clz((DA9062AA_LDO2_SL_B_MASK)) - 1),
810 .suspend_vsel_reg = DA9062AA_VLDO2_B,
811 .suspend = REG_FIELD(DA9062AA_LDO2_CONT,
812 __builtin_ffs((int)DA9062AA_LDO2_CONF_MASK) - 1,
813 sizeof(unsigned int) * 8 -
814 __builtin_clz(DA9062AA_LDO2_CONF_MASK) - 1),
815 .oc_event = REG_FIELD(DA9062AA_STATUS_D,
816 __builtin_ffs((int)DA9062AA_LDO2_ILIM_MASK) - 1,
817 sizeof(unsigned int) * 8 -
818 __builtin_clz((DA9062AA_LDO2_ILIM_MASK)) - 1),
819 },
820 {
821 .desc.id = DA9062_ID_LDO3,
822 .desc.name = "DA9062 LDO3",
823 .desc.of_match = of_match_ptr("ldo3"),
824 .desc.regulators_node = of_match_ptr("regulators"),
825 .desc.ops = &da9062_ldo_ops,
826 .desc.min_uV = (900) * 1000,
827 .desc.uV_step = (50) * 1000,
828 .desc.n_voltages = ((3600) - (900))/(50) + 1
829 + DA9062AA_VLDO_A_MIN_SEL,
830 .desc.enable_reg = DA9062AA_LDO3_CONT,
831 .desc.enable_mask = DA9062AA_LDO3_EN_MASK,
832 .desc.vsel_reg = DA9062AA_VLDO3_A,
833 .desc.vsel_mask = DA9062AA_VLDO3_A_MASK,
834 .desc.linear_min_sel = DA9062AA_VLDO_A_MIN_SEL,
835 .sleep = REG_FIELD(DA9062AA_VLDO3_A,
836 __builtin_ffs((int)DA9062AA_LDO3_SL_A_MASK) - 1,
837 sizeof(unsigned int) * 8 -
838 __builtin_clz((DA9062AA_LDO3_SL_A_MASK)) - 1),
839 .suspend_sleep = REG_FIELD(DA9062AA_VLDO3_B,
840 __builtin_ffs((int)DA9062AA_LDO3_SL_B_MASK) - 1,
841 sizeof(unsigned int) * 8 -
842 __builtin_clz((DA9062AA_LDO3_SL_B_MASK)) - 1),
843 .suspend_vsel_reg = DA9062AA_VLDO3_B,
844 .suspend = REG_FIELD(DA9062AA_LDO3_CONT,
845 __builtin_ffs((int)DA9062AA_LDO3_CONF_MASK) - 1,
846 sizeof(unsigned int) * 8 -
847 __builtin_clz(DA9062AA_LDO3_CONF_MASK) - 1),
848 .oc_event = REG_FIELD(DA9062AA_STATUS_D,
849 __builtin_ffs((int)DA9062AA_LDO3_ILIM_MASK) - 1,
850 sizeof(unsigned int) * 8 -
851 __builtin_clz((DA9062AA_LDO3_ILIM_MASK)) - 1),
852 },
853 {
854 .desc.id = DA9062_ID_LDO4,
855 .desc.name = "DA9062 LDO4",
856 .desc.of_match = of_match_ptr("ldo4"),
857 .desc.regulators_node = of_match_ptr("regulators"),
858 .desc.ops = &da9062_ldo_ops,
859 .desc.min_uV = (900) * 1000,
860 .desc.uV_step = (50) * 1000,
861 .desc.n_voltages = ((3600) - (900))/(50) + 1
862 + DA9062AA_VLDO_A_MIN_SEL,
863 .desc.enable_reg = DA9062AA_LDO4_CONT,
864 .desc.enable_mask = DA9062AA_LDO4_EN_MASK,
865 .desc.vsel_reg = DA9062AA_VLDO4_A,
866 .desc.vsel_mask = DA9062AA_VLDO4_A_MASK,
867 .desc.linear_min_sel = DA9062AA_VLDO_A_MIN_SEL,
868 .sleep = REG_FIELD(DA9062AA_VLDO4_A,
869 __builtin_ffs((int)DA9062AA_LDO4_SL_A_MASK) - 1,
870 sizeof(unsigned int) * 8 -
871 __builtin_clz((DA9062AA_LDO4_SL_A_MASK)) - 1),
872 .suspend_sleep = REG_FIELD(DA9062AA_VLDO4_B,
873 __builtin_ffs((int)DA9062AA_LDO4_SL_B_MASK) - 1,
874 sizeof(unsigned int) * 8 -
875 __builtin_clz((DA9062AA_LDO4_SL_B_MASK)) - 1),
876 .suspend_vsel_reg = DA9062AA_VLDO4_B,
877 .suspend = REG_FIELD(DA9062AA_LDO4_CONT,
878 __builtin_ffs((int)DA9062AA_LDO4_CONF_MASK) - 1,
879 sizeof(unsigned int) * 8 -
880 __builtin_clz(DA9062AA_LDO4_CONF_MASK) - 1),
881 .oc_event = REG_FIELD(DA9062AA_STATUS_D,
882 __builtin_ffs((int)DA9062AA_LDO4_ILIM_MASK) - 1,
883 sizeof(unsigned int) * 8 -
884 __builtin_clz((DA9062AA_LDO4_ILIM_MASK)) - 1),
885 },
886};
887
888/* Regulator interrupt handlers */
889static irqreturn_t da9062_ldo_lim_event(int irq, void *data)
890{
891 struct da9062_regulators *regulators = data;
892 struct da9062 *hw = regulators->regulator[0].hw;
893 struct da9062_regulator *regl;
894 int handled = IRQ_NONE;
895 int bits, i, ret;
896
897 ret = regmap_read(hw->regmap, DA9062AA_STATUS_D, &bits);
898 if (ret < 0) {
899 dev_err(hw->dev,
900 "Failed to read LDO overcurrent indicator\n");
901 goto ldo_lim_error;
902 }
903
904 for (i = regulators->n_regulators - 1; i >= 0; i--) {
905 regl = ®ulators->regulator[i];
906 if (regl->info->oc_event.reg != DA9062AA_STATUS_D)
907 continue;
908
909 if (BIT(regl->info->oc_event.lsb) & bits) {
910 regulator_notifier_call_chain(regl->rdev,
911 REGULATOR_EVENT_OVER_CURRENT, NULL);
912 handled = IRQ_HANDLED;
913 }
914 }
915
916ldo_lim_error:
917 return handled;
918}
919
920static int da9062_regulator_probe(struct platform_device *pdev)
921{
922 struct da9062 *chip = dev_get_drvdata(pdev->dev.parent);
923 struct da9062_regulators *regulators;
924 struct da9062_regulator *regl;
925 struct regulator_config config = { };
926 const struct da9062_regulator_info *rinfo;
927 int n, ret;
928 int max_regulators;
929
930 switch (chip->chip_type) {
931 case COMPAT_TYPE_DA9061:
932 max_regulators = DA9061_MAX_REGULATORS;
933 rinfo = local_da9061_regulator_info;
934 break;
935 case COMPAT_TYPE_DA9062:
936 max_regulators = DA9062_MAX_REGULATORS;
937 rinfo = local_da9062_regulator_info;
938 break;
939 default:
940 dev_err(chip->dev, "Unrecognised chip type\n");
941 return -ENODEV;
942 }
943
944 /* Allocate memory required by usable regulators */
945 regulators = devm_kzalloc(&pdev->dev, struct_size(regulators, regulator,
946 max_regulators), GFP_KERNEL);
947 if (!regulators)
948 return -ENOMEM;
949
950 regulators->n_regulators = max_regulators;
951 platform_set_drvdata(pdev, regulators);
952
953 for (n = 0; n < regulators->n_regulators; n++) {
954 /* Initialise regulator structure */
955 regl = ®ulators->regulator[n];
956 regl->hw = chip;
957 regl->info = &rinfo[n];
958 regl->desc = regl->info->desc;
959 regl->desc.type = REGULATOR_VOLTAGE;
960 regl->desc.owner = THIS_MODULE;
961
962 if (regl->info->mode.reg) {
963 regl->mode = devm_regmap_field_alloc(
964 &pdev->dev,
965 chip->regmap,
966 regl->info->mode);
967 if (IS_ERR(regl->mode))
968 return PTR_ERR(regl->mode);
969 }
970
971 if (regl->info->suspend.reg) {
972 regl->suspend = devm_regmap_field_alloc(
973 &pdev->dev,
974 chip->regmap,
975 regl->info->suspend);
976 if (IS_ERR(regl->suspend))
977 return PTR_ERR(regl->suspend);
978 }
979
980 if (regl->info->sleep.reg) {
981 regl->sleep = devm_regmap_field_alloc(
982 &pdev->dev,
983 chip->regmap,
984 regl->info->sleep);
985 if (IS_ERR(regl->sleep))
986 return PTR_ERR(regl->sleep);
987 }
988
989 if (regl->info->suspend_sleep.reg) {
990 regl->suspend_sleep = devm_regmap_field_alloc(
991 &pdev->dev,
992 chip->regmap,
993 regl->info->suspend_sleep);
994 if (IS_ERR(regl->suspend_sleep))
995 return PTR_ERR(regl->suspend_sleep);
996 }
997
998 /* Register regulator */
999 memset(&config, 0, sizeof(config));
1000 config.dev = chip->dev;
1001 config.driver_data = regl;
1002 config.regmap = chip->regmap;
1003
1004 regl->rdev = devm_regulator_register(&pdev->dev, ®l->desc,
1005 &config);
1006 if (IS_ERR(regl->rdev)) {
1007 dev_err(&pdev->dev,
1008 "Failed to register %s regulator\n",
1009 regl->desc.name);
1010 return PTR_ERR(regl->rdev);
1011 }
1012 }
1013
1014 /* LDOs overcurrent event support */
1015 regulators->irq_ldo_lim = platform_get_irq_byname_optional(pdev, "LDO_LIM");
1016 if (regulators->irq_ldo_lim < 0)
1017 return 0;
1018
1019 ret = devm_request_threaded_irq(&pdev->dev, regulators->irq_ldo_lim,
1020 NULL, da9062_ldo_lim_event,
1021 IRQF_TRIGGER_LOW | IRQF_ONESHOT,
1022 "LDO_LIM", regulators);
1023 if (ret) {
1024 dev_warn(&pdev->dev,
1025 "Failed to request LDO_LIM IRQ.\n");
1026 regulators->irq_ldo_lim = -ENXIO;
1027 }
1028
1029 return 0;
1030}
1031
1032static struct platform_driver da9062_regulator_driver = {
1033 .driver = {
1034 .name = "da9062-regulators",
1035 .probe_type = PROBE_PREFER_ASYNCHRONOUS,
1036 },
1037 .probe = da9062_regulator_probe,
1038};
1039
1040static int __init da9062_regulator_init(void)
1041{
1042 return platform_driver_register(&da9062_regulator_driver);
1043}
1044subsys_initcall(da9062_regulator_init);
1045
1046static void __exit da9062_regulator_cleanup(void)
1047{
1048 platform_driver_unregister(&da9062_regulator_driver);
1049}
1050module_exit(da9062_regulator_cleanup);
1051
1052/* Module information */
1053MODULE_AUTHOR("S Twiss <stwiss.opensource@diasemi.com>");
1054MODULE_DESCRIPTION("REGULATOR device driver for Dialog DA9062 and DA9061");
1055MODULE_LICENSE("GPL");
1056MODULE_ALIAS("platform:da9062-regulators");