1// SPDX-License-Identifier: GPL-2.0+
2//
3// Regulator driver for ATC260x PMICs
4//
5// Copyright (C) 2019 Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
6// Copyright (C) 2020 Cristian Ciocaltea <cristian.ciocaltea@gmail.com>
7
8#include <linux/mfd/atc260x/core.h>
9#include <linux/module.h>
10#include <linux/of.h>
11#include <linux/platform_device.h>
12#include <linux/regmap.h>
13#include <linux/regulator/driver.h>
14
15struct atc260x_regulator_data {
16 int voltage_time_dcdc;
17 int voltage_time_ldo;
18};
19
20static const struct linear_range atc2603c_dcdc_voltage_ranges[] = {
21 REGULATOR_LINEAR_RANGE(1300000, 0, 13, 50000),
22 REGULATOR_LINEAR_RANGE(1950000, 14, 15, 100000),
23};
24
25static const struct linear_range atc2609a_dcdc_voltage_ranges[] = {
26 REGULATOR_LINEAR_RANGE(600000, 0, 127, 6250),
27 REGULATOR_LINEAR_RANGE(1400000, 128, 232, 25000),
28};
29
30static const struct linear_range atc2609a_ldo_voltage_ranges0[] = {
31 REGULATOR_LINEAR_RANGE(700000, 0, 15, 100000),
32 REGULATOR_LINEAR_RANGE(2100000, 0, 12, 100000),
33};
34
35static const struct linear_range atc2609a_ldo_voltage_ranges1[] = {
36 REGULATOR_LINEAR_RANGE(850000, 0, 15, 100000),
37 REGULATOR_LINEAR_RANGE(2100000, 0, 11, 100000),
38};
39
40static const unsigned int atc260x_ldo_voltage_range_sel[] = {
41 0x0, 0x1,
42};
43
44static int atc260x_dcdc_set_voltage_time_sel(struct regulator_dev *rdev,
45 unsigned int old_selector,
46 unsigned int new_selector)
47{
48 struct atc260x_regulator_data *data = rdev_get_drvdata(rdev);
49
50 if (new_selector > old_selector)
51 return data->voltage_time_dcdc;
52
53 return 0;
54}
55
56static int atc260x_ldo_set_voltage_time_sel(struct regulator_dev *rdev,
57 unsigned int old_selector,
58 unsigned int new_selector)
59{
60 struct atc260x_regulator_data *data = rdev_get_drvdata(rdev);
61
62 if (new_selector > old_selector)
63 return data->voltage_time_ldo;
64
65 return 0;
66}
67
68static const struct regulator_ops atc260x_dcdc_ops = {
69 .enable = regulator_enable_regmap,
70 .disable = regulator_disable_regmap,
71 .is_enabled = regulator_is_enabled_regmap,
72 .list_voltage = regulator_list_voltage_linear,
73 .set_voltage_sel = regulator_set_voltage_sel_regmap,
74 .get_voltage_sel = regulator_get_voltage_sel_regmap,
75 .set_voltage_time_sel = atc260x_dcdc_set_voltage_time_sel,
76};
77
78static const struct regulator_ops atc260x_ldo_ops = {
79 .enable = regulator_enable_regmap,
80 .disable = regulator_disable_regmap,
81 .is_enabled = regulator_is_enabled_regmap,
82 .list_voltage = regulator_list_voltage_linear,
83 .set_voltage_sel = regulator_set_voltage_sel_regmap,
84 .get_voltage_sel = regulator_get_voltage_sel_regmap,
85 .set_voltage_time_sel = atc260x_ldo_set_voltage_time_sel,
86};
87
88static const struct regulator_ops atc260x_ldo_bypass_ops = {
89 .enable = regulator_enable_regmap,
90 .disable = regulator_disable_regmap,
91 .is_enabled = regulator_is_enabled_regmap,
92 .list_voltage = regulator_list_voltage_linear,
93 .set_voltage_sel = regulator_set_voltage_sel_regmap,
94 .get_voltage_sel = regulator_get_voltage_sel_regmap,
95 .set_voltage_time_sel = atc260x_ldo_set_voltage_time_sel,
96 .set_bypass = regulator_set_bypass_regmap,
97 .get_bypass = regulator_get_bypass_regmap,
98};
99
100static const struct regulator_ops atc260x_ldo_bypass_discharge_ops = {
101 .enable = regulator_enable_regmap,
102 .disable = regulator_disable_regmap,
103 .is_enabled = regulator_is_enabled_regmap,
104 .list_voltage = regulator_list_voltage_linear,
105 .set_voltage_sel = regulator_set_voltage_sel_regmap,
106 .get_voltage_sel = regulator_get_voltage_sel_regmap,
107 .set_voltage_time_sel = atc260x_ldo_set_voltage_time_sel,
108 .set_bypass = regulator_set_bypass_regmap,
109 .get_bypass = regulator_get_bypass_regmap,
110 .set_active_discharge = regulator_set_active_discharge_regmap,
111};
112
113static const struct regulator_ops atc260x_dcdc_range_ops = {
114 .enable = regulator_enable_regmap,
115 .disable = regulator_disable_regmap,
116 .is_enabled = regulator_is_enabled_regmap,
117 .list_voltage = regulator_list_voltage_linear_range,
118 .set_voltage_sel = regulator_set_voltage_sel_regmap,
119 .get_voltage_sel = regulator_get_voltage_sel_regmap,
120 .set_voltage_time_sel = atc260x_dcdc_set_voltage_time_sel,
121};
122
123static const struct regulator_ops atc260x_ldo_range_pick_ops = {
124 .enable = regulator_enable_regmap,
125 .disable = regulator_disable_regmap,
126 .is_enabled = regulator_is_enabled_regmap,
127 .list_voltage = regulator_list_voltage_pickable_linear_range,
128 .set_voltage_sel = regulator_set_voltage_sel_pickable_regmap,
129 .get_voltage_sel = regulator_get_voltage_sel_pickable_regmap,
130 .set_voltage_time_sel = atc260x_ldo_set_voltage_time_sel,
131};
132
133static const struct regulator_ops atc260x_dcdc_fixed_ops = {
134 .list_voltage = regulator_list_voltage_linear,
135 .set_voltage_sel = regulator_set_voltage_sel_regmap,
136 .get_voltage_sel = regulator_get_voltage_sel_regmap,
137 .set_voltage_time_sel = atc260x_dcdc_set_voltage_time_sel,
138};
139
140static const struct regulator_ops atc260x_ldo_fixed_ops = {
141 .list_voltage = regulator_list_voltage_linear,
142 .set_voltage_sel = regulator_set_voltage_sel_regmap,
143 .get_voltage_sel = regulator_get_voltage_sel_regmap,
144 .set_voltage_time_sel = atc260x_ldo_set_voltage_time_sel,
145};
146
147static const struct regulator_ops atc260x_no_ops = {
148};
149
150/*
151 * Note LDO8 is not documented in datasheet (v2.4), but supported
152 * in the vendor's driver implementation (xapp-le-kernel).
153 */
154enum atc2603c_reg_ids {
155 ATC2603C_ID_DCDC1,
156 ATC2603C_ID_DCDC2,
157 ATC2603C_ID_DCDC3,
158 ATC2603C_ID_LDO1,
159 ATC2603C_ID_LDO2,
160 ATC2603C_ID_LDO3,
161 ATC2603C_ID_LDO5,
162 ATC2603C_ID_LDO6,
163 ATC2603C_ID_LDO7,
164 ATC2603C_ID_LDO8,
165 ATC2603C_ID_LDO11,
166 ATC2603C_ID_LDO12,
167 ATC2603C_ID_SWITCHLDO1,
168 ATC2603C_ID_MAX,
169};
170
171#define atc2603c_reg_desc_dcdc(num, min, step, n_volt, vsel_h, vsel_l) { \
172 .name = "DCDC"#num, \
173 .supply_name = "dcdc"#num, \
174 .of_match = of_match_ptr("dcdc"#num), \
175 .regulators_node = of_match_ptr("regulators"), \
176 .id = ATC2603C_ID_DCDC##num, \
177 .ops = &atc260x_dcdc_ops, \
178 .type = REGULATOR_VOLTAGE, \
179 .min_uV = min, \
180 .uV_step = step, \
181 .n_voltages = n_volt, \
182 .vsel_reg = ATC2603C_PMU_DC##num##_CTL0, \
183 .vsel_mask = GENMASK(vsel_h, vsel_l), \
184 .enable_reg = ATC2603C_PMU_DC##num##_CTL0, \
185 .enable_mask = BIT(15), \
186 .enable_time = 800, \
187 .owner = THIS_MODULE, \
188}
189
190#define atc2603c_reg_desc_dcdc_range(num, vsel_h, vsel_l) { \
191 .name = "DCDC"#num, \
192 .supply_name = "dcdc"#num, \
193 .of_match = of_match_ptr("dcdc"#num), \
194 .regulators_node = of_match_ptr("regulators"), \
195 .id = ATC2603C_ID_DCDC##num, \
196 .ops = &atc260x_dcdc_range_ops, \
197 .type = REGULATOR_VOLTAGE, \
198 .n_voltages = 16, \
199 .linear_ranges = atc2603c_dcdc_voltage_ranges, \
200 .n_linear_ranges = ARRAY_SIZE(atc2603c_dcdc_voltage_ranges), \
201 .vsel_reg = ATC2603C_PMU_DC##num##_CTL0, \
202 .vsel_mask = GENMASK(vsel_h, vsel_l), \
203 .enable_reg = ATC2603C_PMU_DC##num##_CTL0, \
204 .enable_mask = BIT(15), \
205 .enable_time = 800, \
206 .owner = THIS_MODULE, \
207}
208
209#define atc2603c_reg_desc_dcdc_fixed(num, min, step, n_volt, vsel_h, vsel_l) { \
210 .name = "DCDC"#num, \
211 .supply_name = "dcdc"#num, \
212 .of_match = of_match_ptr("dcdc"#num), \
213 .regulators_node = of_match_ptr("regulators"), \
214 .id = ATC2603C_ID_DCDC##num, \
215 .ops = &atc260x_dcdc_fixed_ops, \
216 .type = REGULATOR_VOLTAGE, \
217 .min_uV = min, \
218 .uV_step = step, \
219 .n_voltages = n_volt, \
220 .vsel_reg = ATC2603C_PMU_DC##num##_CTL0, \
221 .vsel_mask = GENMASK(vsel_h, vsel_l), \
222 .enable_time = 800, \
223 .owner = THIS_MODULE, \
224}
225
226#define atc2603c_reg_desc_ldo(num, min, step, n_volt, vsel_h, vsel_l) { \
227 .name = "LDO"#num, \
228 .supply_name = "ldo"#num, \
229 .of_match = of_match_ptr("ldo"#num), \
230 .regulators_node = of_match_ptr("regulators"), \
231 .id = ATC2603C_ID_LDO##num, \
232 .ops = &atc260x_ldo_ops, \
233 .type = REGULATOR_VOLTAGE, \
234 .min_uV = min, \
235 .uV_step = step, \
236 .n_voltages = n_volt, \
237 .vsel_reg = ATC2603C_PMU_LDO##num##_CTL, \
238 .vsel_mask = GENMASK(vsel_h, vsel_l), \
239 .enable_reg = ATC2603C_PMU_LDO##num##_CTL, \
240 .enable_mask = BIT(0), \
241 .enable_time = 2000, \
242 .owner = THIS_MODULE, \
243}
244
245#define atc2603c_reg_desc_ldo_fixed(num, min, step, n_volt, vsel_h, vsel_l) { \
246 .name = "LDO"#num, \
247 .supply_name = "ldo"#num, \
248 .of_match = of_match_ptr("ldo"#num), \
249 .regulators_node = of_match_ptr("regulators"), \
250 .id = ATC2603C_ID_LDO##num, \
251 .ops = &atc260x_ldo_fixed_ops, \
252 .type = REGULATOR_VOLTAGE, \
253 .min_uV = min, \
254 .uV_step = step, \
255 .n_voltages = n_volt, \
256 .vsel_reg = ATC2603C_PMU_LDO##num##_CTL, \
257 .vsel_mask = GENMASK(vsel_h, vsel_l), \
258 .enable_time = 2000, \
259 .owner = THIS_MODULE, \
260}
261
262#define atc2603c_reg_desc_ldo_noops(num, vfixed) { \
263 .name = "LDO"#num, \
264 .supply_name = "ldo"#num, \
265 .of_match = of_match_ptr("ldo"#num), \
266 .regulators_node = of_match_ptr("regulators"), \
267 .id = ATC2603C_ID_LDO##num, \
268 .ops = &atc260x_no_ops, \
269 .type = REGULATOR_VOLTAGE, \
270 .fixed_uV = vfixed, \
271 .n_voltages = 1, \
272 .owner = THIS_MODULE, \
273}
274
275#define atc2603c_reg_desc_ldo_switch(num, min, step, n_volt, vsel_h, vsel_l) { \
276 .name = "SWITCHLDO"#num, \
277 .supply_name = "switchldo"#num, \
278 .of_match = of_match_ptr("switchldo"#num), \
279 .regulators_node = of_match_ptr("regulators"), \
280 .id = ATC2603C_ID_SWITCHLDO##num, \
281 .ops = &atc260x_ldo_bypass_discharge_ops, \
282 .type = REGULATOR_VOLTAGE, \
283 .min_uV = min, \
284 .uV_step = step, \
285 .n_voltages = n_volt, \
286 .vsel_reg = ATC2603C_PMU_SWITCH_CTL, \
287 .vsel_mask = GENMASK(vsel_h, vsel_l), \
288 .enable_reg = ATC2603C_PMU_SWITCH_CTL, \
289 .enable_mask = BIT(15), \
290 .enable_is_inverted = true, \
291 .enable_time = 2000, \
292 .bypass_reg = ATC2603C_PMU_SWITCH_CTL, \
293 .bypass_mask = BIT(5), \
294 .active_discharge_reg = ATC2603C_PMU_SWITCH_CTL, \
295 .active_discharge_mask = BIT(1), \
296 .active_discharge_on = BIT(1), \
297 .owner = THIS_MODULE, \
298}
299
300static const struct regulator_desc atc2603c_reg[] = {
301 atc2603c_reg_desc_dcdc_fixed(1, 700000, 25000, 29, 11, 7),
302 atc2603c_reg_desc_dcdc_range(2, 12, 8),
303 atc2603c_reg_desc_dcdc_fixed(3, 2600000, 100000, 8, 11, 9),
304 atc2603c_reg_desc_ldo_fixed(1, 2600000, 100000, 8, 15, 13),
305 atc2603c_reg_desc_ldo_fixed(2, 2600000, 100000, 8, 15, 13),
306 atc2603c_reg_desc_ldo_fixed(3, 1500000, 100000, 6, 15, 13),
307 atc2603c_reg_desc_ldo(5, 2600000, 100000, 8, 15, 13),
308 atc2603c_reg_desc_ldo_fixed(6, 700000, 25000, 29, 15, 11),
309 atc2603c_reg_desc_ldo(7, 1500000, 100000, 6, 15, 13),
310 atc2603c_reg_desc_ldo(8, 2300000, 100000, 11, 15, 12),
311 atc2603c_reg_desc_ldo_fixed(11, 2600000, 100000, 8, 15, 13),
312 atc2603c_reg_desc_ldo_noops(12, 1800000),
313 atc2603c_reg_desc_ldo_switch(1, 3000000, 100000, 4, 4, 3),
314};
315
316static const struct regulator_desc atc2603c_reg_dcdc2_ver_b =
317 atc2603c_reg_desc_dcdc(2, 1000000, 50000, 18, 12, 8);
318
319enum atc2609a_reg_ids {
320 ATC2609A_ID_DCDC0,
321 ATC2609A_ID_DCDC1,
322 ATC2609A_ID_DCDC2,
323 ATC2609A_ID_DCDC3,
324 ATC2609A_ID_DCDC4,
325 ATC2609A_ID_LDO0,
326 ATC2609A_ID_LDO1,
327 ATC2609A_ID_LDO2,
328 ATC2609A_ID_LDO3,
329 ATC2609A_ID_LDO4,
330 ATC2609A_ID_LDO5,
331 ATC2609A_ID_LDO6,
332 ATC2609A_ID_LDO7,
333 ATC2609A_ID_LDO8,
334 ATC2609A_ID_LDO9,
335 ATC2609A_ID_MAX,
336};
337
338#define atc2609a_reg_desc_dcdc(num, en_bit) { \
339 .name = "DCDC"#num, \
340 .supply_name = "dcdc"#num, \
341 .of_match = of_match_ptr("dcdc"#num), \
342 .regulators_node = of_match_ptr("regulators"), \
343 .id = ATC2609A_ID_DCDC##num, \
344 .ops = &atc260x_dcdc_ops, \
345 .type = REGULATOR_VOLTAGE, \
346 .min_uV = 600000, \
347 .uV_step = 6250, \
348 .n_voltages = 256, \
349 .vsel_reg = ATC2609A_PMU_DC##num##_CTL0, \
350 .vsel_mask = GENMASK(15, 8), \
351 .enable_reg = ATC2609A_PMU_DC_OSC, \
352 .enable_mask = BIT(en_bit), \
353 .enable_time = 800, \
354 .owner = THIS_MODULE, \
355}
356
357#define atc2609a_reg_desc_dcdc_range(num, en_bit) { \
358 .name = "DCDC"#num, \
359 .supply_name = "dcdc"#num, \
360 .of_match = of_match_ptr("dcdc"#num), \
361 .regulators_node = of_match_ptr("regulators"), \
362 .id = ATC2609A_ID_DCDC##num, \
363 .ops = &atc260x_dcdc_range_ops, \
364 .type = REGULATOR_VOLTAGE, \
365 .n_voltages = 233, \
366 .linear_ranges = atc2609a_dcdc_voltage_ranges, \
367 .n_linear_ranges = ARRAY_SIZE(atc2609a_dcdc_voltage_ranges), \
368 .vsel_reg = ATC2609A_PMU_DC##num##_CTL0, \
369 .vsel_mask = GENMASK(15, 8), \
370 .enable_reg = ATC2609A_PMU_DC_OSC, \
371 .enable_mask = BIT(en_bit), \
372 .enable_time = 800, \
373 .owner = THIS_MODULE, \
374}
375
376#define atc2609a_reg_desc_ldo(num) { \
377 .name = "LDO"#num, \
378 .supply_name = "ldo"#num, \
379 .of_match = of_match_ptr("ldo"#num), \
380 .regulators_node = of_match_ptr("regulators"), \
381 .id = ATC2609A_ID_LDO##num, \
382 .ops = &atc260x_ldo_ops, \
383 .type = REGULATOR_VOLTAGE, \
384 .min_uV = 700000, \
385 .uV_step = 100000, \
386 .n_voltages = 16, \
387 .vsel_reg = ATC2609A_PMU_LDO##num##_CTL0, \
388 .vsel_mask = GENMASK(4, 1), \
389 .enable_reg = ATC2609A_PMU_LDO##num##_CTL0, \
390 .enable_mask = BIT(0), \
391 .enable_time = 2000, \
392 .owner = THIS_MODULE, \
393}
394
395#define atc2609a_reg_desc_ldo_bypass(num) { \
396 .name = "LDO"#num, \
397 .supply_name = "ldo"#num, \
398 .of_match = of_match_ptr("ldo"#num), \
399 .regulators_node = of_match_ptr("regulators"), \
400 .id = ATC2609A_ID_LDO##num, \
401 .ops = &atc260x_ldo_bypass_ops, \
402 .type = REGULATOR_VOLTAGE, \
403 .min_uV = 2300000, \
404 .uV_step = 100000, \
405 .n_voltages = 12, \
406 .vsel_reg = ATC2609A_PMU_LDO##num##_CTL0, \
407 .vsel_mask = GENMASK(5, 2), \
408 .enable_reg = ATC2609A_PMU_LDO##num##_CTL0, \
409 .enable_mask = BIT(0), \
410 .enable_time = 2000, \
411 .bypass_reg = ATC2609A_PMU_LDO##num##_CTL0, \
412 .bypass_mask = BIT(1), \
413 .owner = THIS_MODULE, \
414}
415
416#define atc2609a_reg_desc_ldo_range_pick(num, n_range, n_volt) { \
417 .name = "LDO"#num, \
418 .supply_name = "ldo"#num, \
419 .of_match = of_match_ptr("ldo"#num), \
420 .regulators_node = of_match_ptr("regulators"), \
421 .id = ATC2609A_ID_LDO##num, \
422 .ops = &atc260x_ldo_range_pick_ops, \
423 .type = REGULATOR_VOLTAGE, \
424 .linear_ranges = atc2609a_ldo_voltage_ranges##n_range, \
425 .n_linear_ranges = ARRAY_SIZE(atc2609a_ldo_voltage_ranges##n_range), \
426 .n_voltages = n_volt, \
427 .vsel_reg = ATC2609A_PMU_LDO##num##_CTL0, \
428 .vsel_mask = GENMASK(4, 1), \
429 .vsel_range_reg = ATC2609A_PMU_LDO##num##_CTL0, \
430 .vsel_range_mask = BIT(5), \
431 .linear_range_selectors_bitfield = atc260x_ldo_voltage_range_sel, \
432 .enable_reg = ATC2609A_PMU_LDO##num##_CTL0, \
433 .enable_mask = BIT(0), \
434 .enable_time = 2000, \
435 .owner = THIS_MODULE, \
436}
437
438#define atc2609a_reg_desc_ldo_fixed(num) { \
439 .name = "LDO"#num, \
440 .supply_name = "ldo"#num, \
441 .of_match = of_match_ptr("ldo"#num), \
442 .regulators_node = of_match_ptr("regulators"), \
443 .id = ATC2609A_ID_LDO##num, \
444 .ops = &atc260x_ldo_fixed_ops, \
445 .type = REGULATOR_VOLTAGE, \
446 .min_uV = 2600000, \
447 .uV_step = 100000, \
448 .n_voltages = 8, \
449 .vsel_reg = ATC2609A_PMU_LDO##num##_CTL, \
450 .vsel_mask = GENMASK(15, 13), \
451 .enable_time = 2000, \
452 .owner = THIS_MODULE, \
453}
454
455static const struct regulator_desc atc2609a_reg[] = {
456 atc2609a_reg_desc_dcdc(0, 4),
457 atc2609a_reg_desc_dcdc(1, 5),
458 atc2609a_reg_desc_dcdc(2, 6),
459 atc2609a_reg_desc_dcdc_range(3, 7),
460 atc2609a_reg_desc_dcdc(4, 8),
461 atc2609a_reg_desc_ldo_bypass(0),
462 atc2609a_reg_desc_ldo_bypass(1),
463 atc2609a_reg_desc_ldo_bypass(2),
464 atc2609a_reg_desc_ldo_range_pick(3, 0, 29),
465 atc2609a_reg_desc_ldo_range_pick(4, 0, 29),
466 atc2609a_reg_desc_ldo(5),
467 atc2609a_reg_desc_ldo_range_pick(6, 1, 28),
468 atc2609a_reg_desc_ldo_range_pick(7, 0, 29),
469 atc2609a_reg_desc_ldo_range_pick(8, 0, 29),
470 atc2609a_reg_desc_ldo_fixed(9),
471};
472
473static int atc260x_regulator_probe(struct platform_device *pdev)
474{
475 struct atc260x *atc260x = dev_get_drvdata(dev: pdev->dev.parent);
476 struct device *dev = atc260x->dev;
477 struct atc260x_regulator_data *atc260x_data;
478 struct regulator_config config = {};
479 struct regulator_dev *atc260x_rdev;
480 const struct regulator_desc *regulators;
481 bool atc2603c_ver_b = false;
482 int i, nregulators;
483
484 atc260x_data = devm_kzalloc(dev: &pdev->dev, size: sizeof(*atc260x_data), GFP_KERNEL);
485 if (!atc260x_data)
486 return -ENOMEM;
487
488 atc260x_data->voltage_time_dcdc = 350;
489 atc260x_data->voltage_time_ldo = 800;
490
491 switch (atc260x->ic_type) {
492 case ATC2603C:
493 regulators = atc2603c_reg;
494 nregulators = ATC2603C_ID_MAX;
495 atc2603c_ver_b = atc260x->ic_ver == ATC260X_B;
496 break;
497 case ATC2609A:
498 atc260x_data->voltage_time_dcdc = 250;
499 regulators = atc2609a_reg;
500 nregulators = ATC2609A_ID_MAX;
501 break;
502 default:
503 dev_err(dev, "unsupported ATC260X ID %d\n", atc260x->ic_type);
504 return -EINVAL;
505 }
506
507 config.dev = dev;
508 config.regmap = atc260x->regmap;
509 config.driver_data = atc260x_data;
510
511 /* Instantiate the regulators */
512 for (i = 0; i < nregulators; i++) {
513 if (atc2603c_ver_b && regulators[i].id == ATC2603C_ID_DCDC2)
514 atc260x_rdev = devm_regulator_register(dev: &pdev->dev,
515 regulator_desc: &atc2603c_reg_dcdc2_ver_b,
516 config: &config);
517 else
518 atc260x_rdev = devm_regulator_register(dev: &pdev->dev,
519 regulator_desc: &regulators[i],
520 config: &config);
521 if (IS_ERR(ptr: atc260x_rdev)) {
522 dev_err(dev, "failed to register regulator: %d\n", i);
523 return PTR_ERR(ptr: atc260x_rdev);
524 }
525 }
526
527 return 0;
528}
529
530static struct platform_driver atc260x_regulator_driver = {
531 .probe = atc260x_regulator_probe,
532 .driver = {
533 .name = "atc260x-regulator",
534 .probe_type = PROBE_PREFER_ASYNCHRONOUS,
535 },
536};
537
538module_platform_driver(atc260x_regulator_driver);
539
540MODULE_DESCRIPTION("Regulator driver for ATC260x PMICs");
541MODULE_AUTHOR("Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>");
542MODULE_AUTHOR("Cristian Ciocaltea <cristian.ciocaltea@gmail.com>");
543MODULE_LICENSE("GPL");
544

source code of linux/drivers/regulator/atc260x-regulator.c