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staging: rtl8192u: remove redundant assignment to pointer crypt
[linux/fpc-iii.git] / drivers / regulator / da9062-regulator.c
blob2ffc64622451e0cdacae463f62a7dd27b5207276
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
20 /* Regulator IDs */
21 enum {
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
32 enum {
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 */
45 struct da9062_regulator_info {
46 struct regulator_desc desc;
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;
53 /* Event detection bit */
54 struct reg_field oc_event;
55 };
56
57 /* Single regulator settings */
58 struct 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;
68 };
69
70 /* Encapsulates all information for the regulators driver */
71 struct 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 */
79 enum {
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
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 */
93 static const unsigned int da9062_buck_a_limits[] = {
94 500000, 600000, 700000, 800000, 900000, 1000000, 1100000, 1200000,
95 1300000, 1400000, 1500000, 1600000, 1700000, 1800000, 1900000, 2000000
96 };
97
98 /* Current limits array (in uA)
99 * - DA9061_ID_BUCK2
100 * - DA9062_ID_BUCK3
101 * Entry indexes corresponds to register values.
102 */
103 static const unsigned int da9062_buck_b_limits[] = {
104 1500000, 1600000, 1700000, 1800000, 1900000, 2000000, 2100000, 2200000,
105 2300000, 2400000, 2500000, 2600000, 2700000, 2800000, 2900000, 3000000
106 };
107
108 static 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
136 static 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
189 static 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
208 static 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
235 static 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
252 static 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
269 static 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
287 static 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
294 static 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
301 static 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
324 static 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
344 static const struct regulator_ops da9062_buck_ops = {
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,
351 .set_current_limit = regulator_set_current_limit_regmap,
352 .get_current_limit = regulator_get_current_limit_regmap,
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
362 static const struct regulator_ops da9062_ldo_ops = {
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
378 /* DA9061 Regulator information */
379 static 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,
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,
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),
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,
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,
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),
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,
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,
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),
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 + DA9062AA_VLDO_A_MIN_SEL,
498 .desc.enable_reg = DA9062AA_LDO1_CONT,
499 .desc.enable_mask = DA9062AA_LDO1_EN_MASK,
500 .desc.vsel_reg = DA9062AA_VLDO1_A,
501 .desc.vsel_mask = DA9062AA_VLDO1_A_MASK,
502 .desc.linear_min_sel = DA9062AA_VLDO_A_MIN_SEL,
503 .sleep = REG_FIELD(DA9062AA_VLDO1_A,
504 __builtin_ffs((int)DA9062AA_LDO1_SL_A_MASK) - 1,
505 sizeof(unsigned int) * 8 -
506 __builtin_clz((DA9062AA_LDO1_SL_A_MASK)) - 1),
507 .suspend_sleep = REG_FIELD(DA9062AA_VLDO1_B,
508 __builtin_ffs((int)DA9062AA_LDO1_SL_B_MASK) - 1,
509 sizeof(unsigned int) * 8 -
510 __builtin_clz((DA9062AA_LDO1_SL_B_MASK)) - 1),
511 .suspend_vsel_reg = DA9062AA_VLDO1_B,
512 .suspend = REG_FIELD(DA9062AA_DVC_1,
513 __builtin_ffs((int)DA9062AA_VLDO1_SEL_MASK) - 1,
514 sizeof(unsigned int) * 8 -
515 __builtin_clz((DA9062AA_VLDO1_SEL_MASK)) - 1),
516 .oc_event = REG_FIELD(DA9062AA_STATUS_D,
517 __builtin_ffs((int)DA9062AA_LDO1_ILIM_MASK) - 1,
518 sizeof(unsigned int) * 8 -
519 __builtin_clz((DA9062AA_LDO1_ILIM_MASK)) - 1),
520 },
521 {
522 .desc.id = DA9061_ID_LDO2,
523 .desc.name = "DA9061 LDO2",
524 .desc.of_match = of_match_ptr("ldo2"),
525 .desc.regulators_node = of_match_ptr("regulators"),
526 .desc.ops = &da9062_ldo_ops,
527 .desc.min_uV = (900) * 1000,
528 .desc.uV_step = (50) * 1000,
529 .desc.n_voltages = ((3600) - (900))/(50) + 1
530 + DA9062AA_VLDO_A_MIN_SEL,
531 .desc.enable_reg = DA9062AA_LDO2_CONT,
532 .desc.enable_mask = DA9062AA_LDO2_EN_MASK,
533 .desc.vsel_reg = DA9062AA_VLDO2_A,
534 .desc.vsel_mask = DA9062AA_VLDO2_A_MASK,
535 .desc.linear_min_sel = DA9062AA_VLDO_A_MIN_SEL,
536 .sleep = REG_FIELD(DA9062AA_VLDO2_A,
537 __builtin_ffs((int)DA9062AA_LDO2_SL_A_MASK) - 1,
538 sizeof(unsigned int) * 8 -
539 __builtin_clz((DA9062AA_LDO2_SL_A_MASK)) - 1),
540 .suspend_sleep = REG_FIELD(DA9062AA_VLDO2_B,
541 __builtin_ffs((int)DA9062AA_LDO2_SL_B_MASK) - 1,
542 sizeof(unsigned int) * 8 -
543 __builtin_clz((DA9062AA_LDO2_SL_B_MASK)) - 1),
544 .suspend_vsel_reg = DA9062AA_VLDO2_B,
545 .suspend = REG_FIELD(DA9062AA_DVC_1,
546 __builtin_ffs((int)DA9062AA_VLDO2_SEL_MASK) - 1,
547 sizeof(unsigned int) * 8 -
548 __builtin_clz((DA9062AA_VLDO2_SEL_MASK)) - 1),
549 .oc_event = REG_FIELD(DA9062AA_STATUS_D,
550 __builtin_ffs((int)DA9062AA_LDO2_ILIM_MASK) - 1,
551 sizeof(unsigned int) * 8 -
552 __builtin_clz((DA9062AA_LDO2_ILIM_MASK)) - 1),
553 },
554 {
555 .desc.id = DA9061_ID_LDO3,
556 .desc.name = "DA9061 LDO3",
557 .desc.of_match = of_match_ptr("ldo3"),
558 .desc.regulators_node = of_match_ptr("regulators"),
559 .desc.ops = &da9062_ldo_ops,
560 .desc.min_uV = (900) * 1000,
561 .desc.uV_step = (50) * 1000,
562 .desc.n_voltages = ((3600) - (900))/(50) + 1
563 + DA9062AA_VLDO_A_MIN_SEL,
564 .desc.enable_reg = DA9062AA_LDO3_CONT,
565 .desc.enable_mask = DA9062AA_LDO3_EN_MASK,
566 .desc.vsel_reg = DA9062AA_VLDO3_A,
567 .desc.vsel_mask = DA9062AA_VLDO3_A_MASK,
568 .desc.linear_min_sel = DA9062AA_VLDO_A_MIN_SEL,
569 .sleep = REG_FIELD(DA9062AA_VLDO3_A,
570 __builtin_ffs((int)DA9062AA_LDO3_SL_A_MASK) - 1,
571 sizeof(unsigned int) * 8 -
572 __builtin_clz((DA9062AA_LDO3_SL_A_MASK)) - 1),
573 .suspend_sleep = REG_FIELD(DA9062AA_VLDO3_B,
574 __builtin_ffs((int)DA9062AA_LDO3_SL_B_MASK) - 1,
575 sizeof(unsigned int) * 8 -
576 __builtin_clz((DA9062AA_LDO3_SL_B_MASK)) - 1),
577 .suspend_vsel_reg = DA9062AA_VLDO3_B,
578 .suspend = REG_FIELD(DA9062AA_DVC_1,
579 __builtin_ffs((int)DA9062AA_VLDO3_SEL_MASK) - 1,
580 sizeof(unsigned int) * 8 -
581 __builtin_clz((DA9062AA_VLDO3_SEL_MASK)) - 1),
582 .oc_event = REG_FIELD(DA9062AA_STATUS_D,
583 __builtin_ffs((int)DA9062AA_LDO3_ILIM_MASK) - 1,
584 sizeof(unsigned int) * 8 -
585 __builtin_clz((DA9062AA_LDO3_ILIM_MASK)) - 1),
586 },
587 {
588 .desc.id = DA9061_ID_LDO4,
589 .desc.name = "DA9061 LDO4",
590 .desc.of_match = of_match_ptr("ldo4"),
591 .desc.regulators_node = of_match_ptr("regulators"),
592 .desc.ops = &da9062_ldo_ops,
593 .desc.min_uV = (900) * 1000,
594 .desc.uV_step = (50) * 1000,
595 .desc.n_voltages = ((3600) - (900))/(50) + 1
596 + DA9062AA_VLDO_A_MIN_SEL,
597 .desc.enable_reg = DA9062AA_LDO4_CONT,
598 .desc.enable_mask = DA9062AA_LDO4_EN_MASK,
599 .desc.vsel_reg = DA9062AA_VLDO4_A,
600 .desc.vsel_mask = DA9062AA_VLDO4_A_MASK,
601 .desc.linear_min_sel = DA9062AA_VLDO_A_MIN_SEL,
602 .sleep = REG_FIELD(DA9062AA_VLDO4_A,
603 __builtin_ffs((int)DA9062AA_LDO4_SL_A_MASK) - 1,
604 sizeof(unsigned int) * 8 -
605 __builtin_clz((DA9062AA_LDO4_SL_A_MASK)) - 1),
606 .suspend_sleep = REG_FIELD(DA9062AA_VLDO4_B,
607 __builtin_ffs((int)DA9062AA_LDO4_SL_B_MASK) - 1,
608 sizeof(unsigned int) * 8 -
609 __builtin_clz((DA9062AA_LDO4_SL_B_MASK)) - 1),
610 .suspend_vsel_reg = DA9062AA_VLDO4_B,
611 .suspend = REG_FIELD(DA9062AA_DVC_1,
612 __builtin_ffs((int)DA9062AA_VLDO4_SEL_MASK) - 1,
613 sizeof(unsigned int) * 8 -
614 __builtin_clz((DA9062AA_VLDO4_SEL_MASK)) - 1),
615 .oc_event = REG_FIELD(DA9062AA_STATUS_D,
616 __builtin_ffs((int)DA9062AA_LDO4_ILIM_MASK) - 1,
617 sizeof(unsigned int) * 8 -
618 __builtin_clz((DA9062AA_LDO4_ILIM_MASK)) - 1),
619 },
620 };
621
622 /* DA9062 Regulator information */
623 static const struct da9062_regulator_info local_da9062_regulator_info[] = {
624 {
625 .desc.id = DA9062_ID_BUCK1,
626 .desc.name = "DA9062 BUCK1",
627 .desc.of_match = of_match_ptr("buck1"),
628 .desc.regulators_node = of_match_ptr("regulators"),
629 .desc.ops = &da9062_buck_ops,
630 .desc.min_uV = (300) * 1000,
631 .desc.uV_step = (10) * 1000,
632 .desc.n_voltages = ((1570) - (300))/(10) + 1,
633 .desc.curr_table = da9062_buck_a_limits,
634 .desc.n_current_limits = ARRAY_SIZE(da9062_buck_a_limits),
635 .desc.csel_reg = DA9062AA_BUCK_ILIM_C,
636 .desc.csel_mask = DA9062AA_BUCK1_ILIM_MASK,
637 .desc.enable_reg = DA9062AA_BUCK1_CONT,
638 .desc.enable_mask = DA9062AA_BUCK1_EN_MASK,
639 .desc.vsel_reg = DA9062AA_VBUCK1_A,
640 .desc.vsel_mask = DA9062AA_VBUCK1_A_MASK,
641 .desc.linear_min_sel = 0,
642 .sleep = REG_FIELD(DA9062AA_VBUCK1_A,
643 __builtin_ffs((int)DA9062AA_BUCK1_SL_A_MASK) - 1,
644 sizeof(unsigned int) * 8 -
645 __builtin_clz((DA9062AA_BUCK1_SL_A_MASK)) - 1),
646 .suspend_sleep = REG_FIELD(DA9062AA_VBUCK1_B,
647 __builtin_ffs((int)DA9062AA_BUCK1_SL_B_MASK) - 1,
648 sizeof(unsigned int) * 8 -
649 __builtin_clz((DA9062AA_BUCK1_SL_B_MASK)) - 1),
650 .suspend_vsel_reg = DA9062AA_VBUCK1_B,
651 .mode = REG_FIELD(DA9062AA_BUCK1_CFG,
652 __builtin_ffs((int)DA9062AA_BUCK1_MODE_MASK) - 1,
653 sizeof(unsigned int) * 8 -
654 __builtin_clz((DA9062AA_BUCK1_MODE_MASK)) - 1),
655 .suspend = REG_FIELD(DA9062AA_DVC_1,
656 __builtin_ffs((int)DA9062AA_VBUCK1_SEL_MASK) - 1,
657 sizeof(unsigned int) * 8 -
658 __builtin_clz((DA9062AA_VBUCK1_SEL_MASK)) - 1),
659 },
660 {
661 .desc.id = DA9062_ID_BUCK2,
662 .desc.name = "DA9062 BUCK2",
663 .desc.of_match = of_match_ptr("buck2"),
664 .desc.regulators_node = of_match_ptr("regulators"),
665 .desc.ops = &da9062_buck_ops,
666 .desc.min_uV = (300) * 1000,
667 .desc.uV_step = (10) * 1000,
668 .desc.n_voltages = ((1570) - (300))/(10) + 1,
669 .desc.curr_table = da9062_buck_a_limits,
670 .desc.n_current_limits = ARRAY_SIZE(da9062_buck_a_limits),
671 .desc.csel_reg = DA9062AA_BUCK_ILIM_C,
672 .desc.csel_mask = DA9062AA_BUCK2_ILIM_MASK,
673 .desc.enable_reg = DA9062AA_BUCK2_CONT,
674 .desc.enable_mask = DA9062AA_BUCK2_EN_MASK,
675 .desc.vsel_reg = DA9062AA_VBUCK2_A,
676 .desc.vsel_mask = DA9062AA_VBUCK2_A_MASK,
677 .desc.linear_min_sel = 0,
678 .sleep = REG_FIELD(DA9062AA_VBUCK2_A,
679 __builtin_ffs((int)DA9062AA_BUCK2_SL_A_MASK) - 1,
680 sizeof(unsigned int) * 8 -
681 __builtin_clz((DA9062AA_BUCK2_SL_A_MASK)) - 1),
682 .suspend_sleep = REG_FIELD(DA9062AA_VBUCK2_B,
683 __builtin_ffs((int)DA9062AA_BUCK2_SL_B_MASK) - 1,
684 sizeof(unsigned int) * 8 -
685 __builtin_clz((DA9062AA_BUCK2_SL_B_MASK)) - 1),
686 .suspend_vsel_reg = DA9062AA_VBUCK2_B,
687 .mode = REG_FIELD(DA9062AA_BUCK2_CFG,
688 __builtin_ffs((int)DA9062AA_BUCK2_MODE_MASK) - 1,
689 sizeof(unsigned int) * 8 -
690 __builtin_clz((DA9062AA_BUCK2_MODE_MASK)) - 1),
691 .suspend = REG_FIELD(DA9062AA_DVC_1,
692 __builtin_ffs((int)DA9062AA_VBUCK2_SEL_MASK) - 1,
693 sizeof(unsigned int) * 8 -
694 __builtin_clz((DA9062AA_VBUCK2_SEL_MASK)) - 1),
695 },
696 {
697 .desc.id = DA9062_ID_BUCK3,
698 .desc.name = "DA9062 BUCK3",
699 .desc.of_match = of_match_ptr("buck3"),
700 .desc.regulators_node = of_match_ptr("regulators"),
701 .desc.ops = &da9062_buck_ops,
702 .desc.min_uV = (800) * 1000,
703 .desc.uV_step = (20) * 1000,
704 .desc.n_voltages = ((3340) - (800))/(20) + 1,
705 .desc.curr_table = da9062_buck_b_limits,
706 .desc.n_current_limits = ARRAY_SIZE(da9062_buck_b_limits),
707 .desc.csel_reg = DA9062AA_BUCK_ILIM_A,
708 .desc.csel_mask = DA9062AA_BUCK3_ILIM_MASK,
709 .desc.enable_reg = DA9062AA_BUCK3_CONT,
710 .desc.enable_mask = DA9062AA_BUCK3_EN_MASK,
711 .desc.vsel_reg = DA9062AA_VBUCK3_A,
712 .desc.vsel_mask = DA9062AA_VBUCK3_A_MASK,
713 .desc.linear_min_sel = 0,
714 .sleep = REG_FIELD(DA9062AA_VBUCK3_A,
715 __builtin_ffs((int)DA9062AA_BUCK3_SL_A_MASK) - 1,
716 sizeof(unsigned int) * 8 -
717 __builtin_clz((DA9062AA_BUCK3_SL_A_MASK)) - 1),
718 .suspend_sleep = REG_FIELD(DA9062AA_VBUCK3_B,
719 __builtin_ffs((int)DA9062AA_BUCK3_SL_B_MASK) - 1,
720 sizeof(unsigned int) * 8 -
721 __builtin_clz((DA9062AA_BUCK3_SL_B_MASK)) - 1),
722 .suspend_vsel_reg = DA9062AA_VBUCK3_B,
723 .mode = REG_FIELD(DA9062AA_BUCK3_CFG,
724 __builtin_ffs((int)DA9062AA_BUCK3_MODE_MASK) - 1,
725 sizeof(unsigned int) * 8 -
726 __builtin_clz((DA9062AA_BUCK3_MODE_MASK)) - 1),
727 .suspend = REG_FIELD(DA9062AA_DVC_1,
728 __builtin_ffs((int)DA9062AA_VBUCK3_SEL_MASK) - 1,
729 sizeof(unsigned int) * 8 -
730 __builtin_clz((DA9062AA_VBUCK3_SEL_MASK)) - 1),
731 },
732 {
733 .desc.id = DA9062_ID_BUCK4,
734 .desc.name = "DA9062 BUCK4",
735 .desc.of_match = of_match_ptr("buck4"),
736 .desc.regulators_node = of_match_ptr("regulators"),
737 .desc.ops = &da9062_buck_ops,
738 .desc.min_uV = (530) * 1000,
739 .desc.uV_step = (10) * 1000,
740 .desc.n_voltages = ((1800) - (530))/(10) + 1,
741 .desc.curr_table = da9062_buck_a_limits,
742 .desc.n_current_limits = ARRAY_SIZE(da9062_buck_a_limits),
743 .desc.csel_reg = DA9062AA_BUCK_ILIM_B,
744 .desc.csel_mask = DA9062AA_BUCK4_ILIM_MASK,
745 .desc.enable_reg = DA9062AA_BUCK4_CONT,
746 .desc.enable_mask = DA9062AA_BUCK4_EN_MASK,
747 .desc.vsel_reg = DA9062AA_VBUCK4_A,
748 .desc.vsel_mask = DA9062AA_VBUCK4_A_MASK,
749 .desc.linear_min_sel = 0,
750 .sleep = REG_FIELD(DA9062AA_VBUCK4_A,
751 __builtin_ffs((int)DA9062AA_BUCK4_SL_A_MASK) - 1,
752 sizeof(unsigned int) * 8 -
753 __builtin_clz((DA9062AA_BUCK4_SL_A_MASK)) - 1),
754 .suspend_sleep = REG_FIELD(DA9062AA_VBUCK4_B,
755 __builtin_ffs((int)DA9062AA_BUCK4_SL_B_MASK) - 1,
756 sizeof(unsigned int) * 8 -
757 __builtin_clz((DA9062AA_BUCK4_SL_B_MASK)) - 1),
758 .suspend_vsel_reg = DA9062AA_VBUCK4_B,
759 .mode = REG_FIELD(DA9062AA_BUCK4_CFG,
760 __builtin_ffs((int)DA9062AA_BUCK4_MODE_MASK) - 1,
761 sizeof(unsigned int) * 8 -
762 __builtin_clz((DA9062AA_BUCK4_MODE_MASK)) - 1),
763 .suspend = REG_FIELD(DA9062AA_DVC_1,
764 __builtin_ffs((int)DA9062AA_VBUCK4_SEL_MASK) - 1,
765 sizeof(unsigned int) * 8 -
766 __builtin_clz((DA9062AA_VBUCK4_SEL_MASK)) - 1),
767 },
768 {
769 .desc.id = DA9062_ID_LDO1,
770 .desc.name = "DA9062 LDO1",
771 .desc.of_match = of_match_ptr("ldo1"),
772 .desc.regulators_node = of_match_ptr("regulators"),
773 .desc.ops = &da9062_ldo_ops,
774 .desc.min_uV = (900) * 1000,
775 .desc.uV_step = (50) * 1000,
776 .desc.n_voltages = ((3600) - (900))/(50) + 1
777 + DA9062AA_VLDO_A_MIN_SEL,
778 .desc.enable_reg = DA9062AA_LDO1_CONT,
779 .desc.enable_mask = DA9062AA_LDO1_EN_MASK,
780 .desc.vsel_reg = DA9062AA_VLDO1_A,
781 .desc.vsel_mask = DA9062AA_VLDO1_A_MASK,
782 .desc.linear_min_sel = DA9062AA_VLDO_A_MIN_SEL,
783 .sleep = REG_FIELD(DA9062AA_VLDO1_A,
784 __builtin_ffs((int)DA9062AA_LDO1_SL_A_MASK) - 1,
785 sizeof(unsigned int) * 8 -
786 __builtin_clz((DA9062AA_LDO1_SL_A_MASK)) - 1),
787 .suspend_sleep = REG_FIELD(DA9062AA_VLDO1_B,
788 __builtin_ffs((int)DA9062AA_LDO1_SL_B_MASK) - 1,
789 sizeof(unsigned int) * 8 -
790 __builtin_clz((DA9062AA_LDO1_SL_B_MASK)) - 1),
791 .suspend_vsel_reg = DA9062AA_VLDO1_B,
792 .suspend = REG_FIELD(DA9062AA_DVC_1,
793 __builtin_ffs((int)DA9062AA_VLDO1_SEL_MASK) - 1,
794 sizeof(unsigned int) * 8 -
795 __builtin_clz((DA9062AA_VLDO1_SEL_MASK)) - 1),
796 .oc_event = REG_FIELD(DA9062AA_STATUS_D,
797 __builtin_ffs((int)DA9062AA_LDO1_ILIM_MASK) - 1,
798 sizeof(unsigned int) * 8 -
799 __builtin_clz((DA9062AA_LDO1_ILIM_MASK)) - 1),
800 },
801 {
802 .desc.id = DA9062_ID_LDO2,
803 .desc.name = "DA9062 LDO2",
804 .desc.of_match = of_match_ptr("ldo2"),
805 .desc.regulators_node = of_match_ptr("regulators"),
806 .desc.ops = &da9062_ldo_ops,
807 .desc.min_uV = (900) * 1000,
808 .desc.uV_step = (50) * 1000,
809 .desc.n_voltages = ((3600) - (900))/(50) + 1
810 + DA9062AA_VLDO_A_MIN_SEL,
811 .desc.enable_reg = DA9062AA_LDO2_CONT,
812 .desc.enable_mask = DA9062AA_LDO2_EN_MASK,
813 .desc.vsel_reg = DA9062AA_VLDO2_A,
814 .desc.vsel_mask = DA9062AA_VLDO2_A_MASK,
815 .desc.linear_min_sel = DA9062AA_VLDO_A_MIN_SEL,
816 .sleep = REG_FIELD(DA9062AA_VLDO2_A,
817 __builtin_ffs((int)DA9062AA_LDO2_SL_A_MASK) - 1,
818 sizeof(unsigned int) * 8 -
819 __builtin_clz((DA9062AA_LDO2_SL_A_MASK)) - 1),
820 .suspend_sleep = REG_FIELD(DA9062AA_VLDO2_B,
821 __builtin_ffs((int)DA9062AA_LDO2_SL_B_MASK) - 1,
822 sizeof(unsigned int) * 8 -
823 __builtin_clz((DA9062AA_LDO2_SL_B_MASK)) - 1),
824 .suspend_vsel_reg = DA9062AA_VLDO2_B,
825 .suspend = REG_FIELD(DA9062AA_DVC_1,
826 __builtin_ffs((int)DA9062AA_VLDO2_SEL_MASK) - 1,
827 sizeof(unsigned int) * 8 -
828 __builtin_clz((DA9062AA_VLDO2_SEL_MASK)) - 1),
829 .oc_event = REG_FIELD(DA9062AA_STATUS_D,
830 __builtin_ffs((int)DA9062AA_LDO2_ILIM_MASK) - 1,
831 sizeof(unsigned int) * 8 -
832 __builtin_clz((DA9062AA_LDO2_ILIM_MASK)) - 1),
833 },
834 {
835 .desc.id = DA9062_ID_LDO3,
836 .desc.name = "DA9062 LDO3",
837 .desc.of_match = of_match_ptr("ldo3"),
838 .desc.regulators_node = of_match_ptr("regulators"),
839 .desc.ops = &da9062_ldo_ops,
840 .desc.min_uV = (900) * 1000,
841 .desc.uV_step = (50) * 1000,
842 .desc.n_voltages = ((3600) - (900))/(50) + 1
843 + DA9062AA_VLDO_A_MIN_SEL,
844 .desc.enable_reg = DA9062AA_LDO3_CONT,
845 .desc.enable_mask = DA9062AA_LDO3_EN_MASK,
846 .desc.vsel_reg = DA9062AA_VLDO3_A,
847 .desc.vsel_mask = DA9062AA_VLDO3_A_MASK,
848 .desc.linear_min_sel = DA9062AA_VLDO_A_MIN_SEL,
849 .sleep = REG_FIELD(DA9062AA_VLDO3_A,
850 __builtin_ffs((int)DA9062AA_LDO3_SL_A_MASK) - 1,
851 sizeof(unsigned int) * 8 -
852 __builtin_clz((DA9062AA_LDO3_SL_A_MASK)) - 1),
853 .suspend_sleep = REG_FIELD(DA9062AA_VLDO3_B,
854 __builtin_ffs((int)DA9062AA_LDO3_SL_B_MASK) - 1,
855 sizeof(unsigned int) * 8 -
856 __builtin_clz((DA9062AA_LDO3_SL_B_MASK)) - 1),
857 .suspend_vsel_reg = DA9062AA_VLDO3_B,
858 .suspend = REG_FIELD(DA9062AA_DVC_1,
859 __builtin_ffs((int)DA9062AA_VLDO3_SEL_MASK) - 1,
860 sizeof(unsigned int) * 8 -
861 __builtin_clz((DA9062AA_VLDO3_SEL_MASK)) - 1),
862 .oc_event = REG_FIELD(DA9062AA_STATUS_D,
863 __builtin_ffs((int)DA9062AA_LDO3_ILIM_MASK) - 1,
864 sizeof(unsigned int) * 8 -
865 __builtin_clz((DA9062AA_LDO3_ILIM_MASK)) - 1),
866 },
867 {
868 .desc.id = DA9062_ID_LDO4,
869 .desc.name = "DA9062 LDO4",
870 .desc.of_match = of_match_ptr("ldo4"),
871 .desc.regulators_node = of_match_ptr("regulators"),
872 .desc.ops = &da9062_ldo_ops,
873 .desc.min_uV = (900) * 1000,
874 .desc.uV_step = (50) * 1000,
875 .desc.n_voltages = ((3600) - (900))/(50) + 1
876 + DA9062AA_VLDO_A_MIN_SEL,
877 .desc.enable_reg = DA9062AA_LDO4_CONT,
878 .desc.enable_mask = DA9062AA_LDO4_EN_MASK,
879 .desc.vsel_reg = DA9062AA_VLDO4_A,
880 .desc.vsel_mask = DA9062AA_VLDO4_A_MASK,
881 .desc.linear_min_sel = DA9062AA_VLDO_A_MIN_SEL,
882 .sleep = REG_FIELD(DA9062AA_VLDO4_A,
883 __builtin_ffs((int)DA9062AA_LDO4_SL_A_MASK) - 1,
884 sizeof(unsigned int) * 8 -
885 __builtin_clz((DA9062AA_LDO4_SL_A_MASK)) - 1),
886 .suspend_sleep = REG_FIELD(DA9062AA_VLDO4_B,
887 __builtin_ffs((int)DA9062AA_LDO4_SL_B_MASK) - 1,
888 sizeof(unsigned int) * 8 -
889 __builtin_clz((DA9062AA_LDO4_SL_B_MASK)) - 1),
890 .suspend_vsel_reg = DA9062AA_VLDO4_B,
891 .suspend = REG_FIELD(DA9062AA_DVC_1,
892 __builtin_ffs((int)DA9062AA_VLDO4_SEL_MASK) - 1,
893 sizeof(unsigned int) * 8 -
894 __builtin_clz((DA9062AA_VLDO4_SEL_MASK)) - 1),
895 .oc_event = REG_FIELD(DA9062AA_STATUS_D,
896 __builtin_ffs((int)DA9062AA_LDO4_ILIM_MASK) - 1,
897 sizeof(unsigned int) * 8 -
898 __builtin_clz((DA9062AA_LDO4_ILIM_MASK)) - 1),
899 },
900 };
901
902 /* Regulator interrupt handlers */
903 static irqreturn_t da9062_ldo_lim_event(int irq, void *data)
904 {
905 struct da9062_regulators *regulators = data;
906 struct da9062 *hw = regulators->regulator[0].hw;
907 struct da9062_regulator *regl;
908 int handled = IRQ_NONE;
909 int bits, i, ret;
910
911 ret = regmap_read(hw->regmap, DA9062AA_STATUS_D, &bits);
912 if (ret < 0) {
913 dev_err(hw->dev,
914 "Failed to read LDO overcurrent indicator\n");
915 goto ldo_lim_error;
916 }
917
918 for (i = regulators->n_regulators - 1; i >= 0; i--) {
919 regl = &regulators->regulator[i];
920 if (regl->info->oc_event.reg != DA9062AA_STATUS_D)
921 continue;
922
923 if (BIT(regl->info->oc_event.lsb) & bits) {
924 regulator_lock(regl->rdev);
925 regulator_notifier_call_chain(regl->rdev,
926 REGULATOR_EVENT_OVER_CURRENT, NULL);
927 regulator_unlock(regl->rdev);
928 handled = IRQ_HANDLED;
929 }
930 }
931
932 ldo_lim_error:
933 return handled;
934 }
935
936 static int da9062_regulator_probe(struct platform_device *pdev)
937 {
938 struct da9062 *chip = dev_get_drvdata(pdev->dev.parent);
939 struct da9062_regulators *regulators;
940 struct da9062_regulator *regl;
941 struct regulator_config config = { };
942 const struct da9062_regulator_info *rinfo;
943 int irq, n, ret;
944 int max_regulators;
945
946 switch (chip->chip_type) {
947 case COMPAT_TYPE_DA9061:
948 max_regulators = DA9061_MAX_REGULATORS;
949 rinfo = local_da9061_regulator_info;
950 break;
951 case COMPAT_TYPE_DA9062:
952 max_regulators = DA9062_MAX_REGULATORS;
953 rinfo = local_da9062_regulator_info;
954 break;
955 default:
956 dev_err(chip->dev, "Unrecognised chip type\n");
957 return -ENODEV;
958 }
959
960 /* Allocate memory required by usable regulators */
961 regulators = devm_kzalloc(&pdev->dev, struct_size(regulators, regulator,
962 max_regulators), GFP_KERNEL);
963 if (!regulators)
964 return -ENOMEM;
965
966 regulators->n_regulators = max_regulators;
967 platform_set_drvdata(pdev, regulators);
968
969 n = 0;
970 while (n < regulators->n_regulators) {
971 /* Initialise regulator structure */
972 regl = &regulators->regulator[n];
973 regl->hw = chip;
974 regl->info = &rinfo[n];
975 regl->desc = regl->info->desc;
976 regl->desc.type = REGULATOR_VOLTAGE;
977 regl->desc.owner = THIS_MODULE;
978
979 if (regl->info->mode.reg) {
980 regl->mode = devm_regmap_field_alloc(
981 &pdev->dev,
982 chip->regmap,
983 regl->info->mode);
984 if (IS_ERR(regl->mode))
985 return PTR_ERR(regl->mode);
986 }
987
988 if (regl->info->suspend.reg) {
989 regl->suspend = devm_regmap_field_alloc(
990 &pdev->dev,
991 chip->regmap,
992 regl->info->suspend);
993 if (IS_ERR(regl->suspend))
994 return PTR_ERR(regl->suspend);
995 }
996
997 if (regl->info->sleep.reg) {
998 regl->sleep = devm_regmap_field_alloc(
999 &pdev->dev,
1000 chip->regmap,
1001 regl->info->sleep);
1002 if (IS_ERR(regl->sleep))
1003 return PTR_ERR(regl->sleep);
1004 }
1005
1006 if (regl->info->suspend_sleep.reg) {
1007 regl->suspend_sleep = devm_regmap_field_alloc(
1008 &pdev->dev,
1009 chip->regmap,
1010 regl->info->suspend_sleep);
1011 if (IS_ERR(regl->suspend_sleep))
1012 return PTR_ERR(regl->suspend_sleep);
1013 }
1014
1015 /* Register regulator */
1016 memset(&config, 0, sizeof(config));
1017 config.dev = chip->dev;
1018 config.driver_data = regl;
1019 config.regmap = chip->regmap;
1020
1021 regl->rdev = devm_regulator_register(&pdev->dev, &regl->desc,
1022 &config);
1023 if (IS_ERR(regl->rdev)) {
1024 dev_err(&pdev->dev,
1025 "Failed to register %s regulator\n",
1026 regl->desc.name);
1027 return PTR_ERR(regl->rdev);
1028 }
1029
1030 n++;
1031 }
1032
1033 /* LDOs overcurrent event support */
1034 irq = platform_get_irq_byname(pdev, "LDO_LIM");
1035 if (irq < 0) {
1036 dev_err(&pdev->dev, "Failed to get IRQ.\n");
1037 return irq;
1038 }
1039 regulators->irq_ldo_lim = irq;
1040
1041 ret = devm_request_threaded_irq(&pdev->dev, irq,
1042 NULL, da9062_ldo_lim_event,
1043 IRQF_TRIGGER_LOW | IRQF_ONESHOT,
1044 "LDO_LIM", regulators);
1045 if (ret) {
1046 dev_warn(&pdev->dev,
1047 "Failed to request LDO_LIM IRQ.\n");
1048 regulators->irq_ldo_lim = -ENXIO;
1049 }
1050
1051 return 0;
1052 }
1053
1054 static struct platform_driver da9062_regulator_driver = {
1055 .driver = {
1056 .name = "da9062-regulators",
1057 },
1058 .probe = da9062_regulator_probe,
1059 };
1060
1061 static int __init da9062_regulator_init(void)
1062 {
1063 return platform_driver_register(&da9062_regulator_driver);
1064 }
1065 subsys_initcall(da9062_regulator_init);
1066
1067 static void __exit da9062_regulator_cleanup(void)
1068 {
1069 platform_driver_unregister(&da9062_regulator_driver);
1070 }
1071 module_exit(da9062_regulator_cleanup);
1072
1073 /* Module information */
1074 MODULE_AUTHOR("S Twiss <stwiss.opensource@diasemi.com>");
1075 MODULE_DESCRIPTION("REGULATOR device driver for Dialog DA9062 and DA9061");
1076 MODULE_LICENSE("GPL");
1077 MODULE_ALIAS("platform:da9062-regulators");
Linux with added FPC-III support