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Merge tag 'for-linus-20190706' of git://git.kernel.dk/linux-block
[linux/fpc-iii.git] / drivers / regulator / s2mps11.c
blob134c62db36c5d5ebb6ce2adebcf430b59ca1c8d6
1 // SPDX-License-Identifier: GPL-2.0+
2 //
3 // Copyright (c) 2012-2014 Samsung Electronics Co., Ltd
4 // http://www.samsung.com
5
6 #include <linux/bug.h>
7 #include <linux/err.h>
8 #include <linux/gpio/consumer.h>
9 #include <linux/slab.h>
10 #include <linux/module.h>
11 #include <linux/of.h>
12 #include <linux/regmap.h>
13 #include <linux/platform_device.h>
14 #include <linux/regulator/driver.h>
15 #include <linux/regulator/machine.h>
16 #include <linux/regulator/of_regulator.h>
17 #include <linux/mfd/samsung/core.h>
18 #include <linux/mfd/samsung/s2mps11.h>
19 #include <linux/mfd/samsung/s2mps13.h>
20 #include <linux/mfd/samsung/s2mps14.h>
21 #include <linux/mfd/samsung/s2mps15.h>
22 #include <linux/mfd/samsung/s2mpu02.h>
23
24 /* The highest number of possible regulators for supported devices. */
25 #define S2MPS_REGULATOR_MAX S2MPS13_REGULATOR_MAX
26 struct s2mps11_info {
27 int ramp_delay2;
28 int ramp_delay34;
29 int ramp_delay5;
30 int ramp_delay16;
31 int ramp_delay7810;
32 int ramp_delay9;
33
34 enum sec_device_type dev_type;
35
36 /*
37 * One bit for each S2MPS13/S2MPS14/S2MPU02 regulator whether
38 * the suspend mode was enabled.
39 */
40 DECLARE_BITMAP(suspend_state, S2MPS_REGULATOR_MAX);
41
42 /*
43 * Array (size: number of regulators) with GPIO-s for external
44 * sleep control.
45 */
46 struct gpio_desc **ext_control_gpiod;
47 };
48
49 static int get_ramp_delay(int ramp_delay)
50 {
51 unsigned char cnt = 0;
52
53 ramp_delay /= 6250;
54
55 while (true) {
56 ramp_delay = ramp_delay >> 1;
57 if (ramp_delay == 0)
58 break;
59 cnt++;
60 }
61
62 if (cnt > 3)
63 cnt = 3;
64
65 return cnt;
66 }
67
68 static int s2mps11_regulator_set_voltage_time_sel(struct regulator_dev *rdev,
69 unsigned int old_selector,
70 unsigned int new_selector)
71 {
72 struct s2mps11_info *s2mps11 = rdev_get_drvdata(rdev);
73 unsigned int ramp_delay = 0;
74 int old_volt, new_volt;
75
76 switch (rdev_get_id(rdev)) {
77 case S2MPS11_BUCK2:
78 ramp_delay = s2mps11->ramp_delay2;
79 break;
80 case S2MPS11_BUCK3:
81 case S2MPS11_BUCK4:
82 ramp_delay = s2mps11->ramp_delay34;
83 break;
84 case S2MPS11_BUCK5:
85 ramp_delay = s2mps11->ramp_delay5;
86 break;
87 case S2MPS11_BUCK6:
88 case S2MPS11_BUCK1:
89 ramp_delay = s2mps11->ramp_delay16;
90 break;
91 case S2MPS11_BUCK7:
92 case S2MPS11_BUCK8:
93 case S2MPS11_BUCK10:
94 ramp_delay = s2mps11->ramp_delay7810;
95 break;
96 case S2MPS11_BUCK9:
97 ramp_delay = s2mps11->ramp_delay9;
98 }
99
100 if (ramp_delay == 0)
101 ramp_delay = rdev->desc->ramp_delay;
102
103 old_volt = rdev->desc->min_uV + (rdev->desc->uV_step * old_selector);
104 new_volt = rdev->desc->min_uV + (rdev->desc->uV_step * new_selector);
105
106 return DIV_ROUND_UP(abs(new_volt - old_volt), ramp_delay);
107 }
108
109 static int s2mps11_set_ramp_delay(struct regulator_dev *rdev, int ramp_delay)
110 {
111 struct s2mps11_info *s2mps11 = rdev_get_drvdata(rdev);
112 unsigned int ramp_val, ramp_shift, ramp_reg = S2MPS11_REG_RAMP_BUCK;
113 unsigned int ramp_enable = 1, enable_shift = 0;
114 int ret;
115
116 switch (rdev_get_id(rdev)) {
117 case S2MPS11_BUCK1:
118 if (ramp_delay > s2mps11->ramp_delay16)
119 s2mps11->ramp_delay16 = ramp_delay;
120 else
121 ramp_delay = s2mps11->ramp_delay16;
122
123 ramp_shift = S2MPS11_BUCK16_RAMP_SHIFT;
124 break;
125 case S2MPS11_BUCK2:
126 enable_shift = S2MPS11_BUCK2_RAMP_EN_SHIFT;
127 if (!ramp_delay) {
128 ramp_enable = 0;
129 break;
130 }
131
132 s2mps11->ramp_delay2 = ramp_delay;
133 ramp_shift = S2MPS11_BUCK2_RAMP_SHIFT;
134 ramp_reg = S2MPS11_REG_RAMP;
135 break;
136 case S2MPS11_BUCK3:
137 enable_shift = S2MPS11_BUCK3_RAMP_EN_SHIFT;
138 if (!ramp_delay) {
139 ramp_enable = 0;
140 break;
141 }
142
143 if (ramp_delay > s2mps11->ramp_delay34)
144 s2mps11->ramp_delay34 = ramp_delay;
145 else
146 ramp_delay = s2mps11->ramp_delay34;
147
148 ramp_shift = S2MPS11_BUCK34_RAMP_SHIFT;
149 ramp_reg = S2MPS11_REG_RAMP;
150 break;
151 case S2MPS11_BUCK4:
152 enable_shift = S2MPS11_BUCK4_RAMP_EN_SHIFT;
153 if (!ramp_delay) {
154 ramp_enable = 0;
155 break;
156 }
157
158 if (ramp_delay > s2mps11->ramp_delay34)
159 s2mps11->ramp_delay34 = ramp_delay;
160 else
161 ramp_delay = s2mps11->ramp_delay34;
162
163 ramp_shift = S2MPS11_BUCK34_RAMP_SHIFT;
164 ramp_reg = S2MPS11_REG_RAMP;
165 break;
166 case S2MPS11_BUCK5:
167 s2mps11->ramp_delay5 = ramp_delay;
168 ramp_shift = S2MPS11_BUCK5_RAMP_SHIFT;
169 break;
170 case S2MPS11_BUCK6:
171 enable_shift = S2MPS11_BUCK6_RAMP_EN_SHIFT;
172 if (!ramp_delay) {
173 ramp_enable = 0;
174 break;
175 }
176
177 if (ramp_delay > s2mps11->ramp_delay16)
178 s2mps11->ramp_delay16 = ramp_delay;
179 else
180 ramp_delay = s2mps11->ramp_delay16;
181
182 ramp_shift = S2MPS11_BUCK16_RAMP_SHIFT;
183 break;
184 case S2MPS11_BUCK7:
185 case S2MPS11_BUCK8:
186 case S2MPS11_BUCK10:
187 if (ramp_delay > s2mps11->ramp_delay7810)
188 s2mps11->ramp_delay7810 = ramp_delay;
189 else
190 ramp_delay = s2mps11->ramp_delay7810;
191
192 ramp_shift = S2MPS11_BUCK7810_RAMP_SHIFT;
193 break;
194 case S2MPS11_BUCK9:
195 s2mps11->ramp_delay9 = ramp_delay;
196 ramp_shift = S2MPS11_BUCK9_RAMP_SHIFT;
197 break;
198 default:
199 return 0;
200 }
201
202 if (!ramp_enable)
203 goto ramp_disable;
204
205 /* Ramp delay can be enabled/disabled only for buck[2346] */
206 if ((rdev_get_id(rdev) >= S2MPS11_BUCK2 &&
207 rdev_get_id(rdev) <= S2MPS11_BUCK4) ||
208 rdev_get_id(rdev) == S2MPS11_BUCK6) {
209 ret = regmap_update_bits(rdev->regmap, S2MPS11_REG_RAMP,
210 1 << enable_shift, 1 << enable_shift);
211 if (ret) {
212 dev_err(&rdev->dev, "failed to enable ramp rate\n");
213 return ret;
214 }
215 }
216
217 ramp_val = get_ramp_delay(ramp_delay);
218
219 return regmap_update_bits(rdev->regmap, ramp_reg, 0x3 << ramp_shift,
220 ramp_val << ramp_shift);
221
222 ramp_disable:
223 return regmap_update_bits(rdev->regmap, S2MPS11_REG_RAMP,
224 1 << enable_shift, 0);
225 }
226
227 static const struct regulator_ops s2mps11_ldo_ops = {
228 .list_voltage = regulator_list_voltage_linear,
229 .map_voltage = regulator_map_voltage_linear,
230 .is_enabled = regulator_is_enabled_regmap,
231 .enable = regulator_enable_regmap,
232 .disable = regulator_disable_regmap,
233 .get_voltage_sel = regulator_get_voltage_sel_regmap,
234 .set_voltage_sel = regulator_set_voltage_sel_regmap,
235 .set_voltage_time_sel = regulator_set_voltage_time_sel,
236 };
237
238 static const struct regulator_ops s2mps11_buck_ops = {
239 .list_voltage = regulator_list_voltage_linear,
240 .map_voltage = regulator_map_voltage_linear,
241 .is_enabled = regulator_is_enabled_regmap,
242 .enable = regulator_enable_regmap,
243 .disable = regulator_disable_regmap,
244 .get_voltage_sel = regulator_get_voltage_sel_regmap,
245 .set_voltage_sel = regulator_set_voltage_sel_regmap,
246 .set_voltage_time_sel = s2mps11_regulator_set_voltage_time_sel,
247 .set_ramp_delay = s2mps11_set_ramp_delay,
248 };
249
250 #define regulator_desc_s2mps11_ldo(num, step) { \
251 .name = "LDO"#num, \
252 .id = S2MPS11_LDO##num, \
253 .ops = &s2mps11_ldo_ops, \
254 .type = REGULATOR_VOLTAGE, \
255 .owner = THIS_MODULE, \
256 .ramp_delay = RAMP_DELAY_12_MVUS, \
257 .min_uV = MIN_800_MV, \
258 .uV_step = step, \
259 .n_voltages = S2MPS11_LDO_N_VOLTAGES, \
260 .vsel_reg = S2MPS11_REG_L1CTRL + num - 1, \
261 .vsel_mask = S2MPS11_LDO_VSEL_MASK, \
262 .enable_reg = S2MPS11_REG_L1CTRL + num - 1, \
263 .enable_mask = S2MPS11_ENABLE_MASK \
264 }
265
266 #define regulator_desc_s2mps11_buck1_4(num) { \
267 .name = "BUCK"#num, \
268 .id = S2MPS11_BUCK##num, \
269 .ops = &s2mps11_buck_ops, \
270 .type = REGULATOR_VOLTAGE, \
271 .owner = THIS_MODULE, \
272 .min_uV = MIN_600_MV, \
273 .uV_step = STEP_6_25_MV, \
274 .n_voltages = S2MPS11_BUCK_N_VOLTAGES, \
275 .ramp_delay = S2MPS11_RAMP_DELAY, \
276 .vsel_reg = S2MPS11_REG_B1CTRL2 + (num - 1) * 2, \
277 .vsel_mask = S2MPS11_BUCK_VSEL_MASK, \
278 .enable_reg = S2MPS11_REG_B1CTRL1 + (num - 1) * 2, \
279 .enable_mask = S2MPS11_ENABLE_MASK \
280 }
281
282 #define regulator_desc_s2mps11_buck5 { \
283 .name = "BUCK5", \
284 .id = S2MPS11_BUCK5, \
285 .ops = &s2mps11_buck_ops, \
286 .type = REGULATOR_VOLTAGE, \
287 .owner = THIS_MODULE, \
288 .min_uV = MIN_600_MV, \
289 .uV_step = STEP_6_25_MV, \
290 .n_voltages = S2MPS11_BUCK_N_VOLTAGES, \
291 .ramp_delay = S2MPS11_RAMP_DELAY, \
292 .vsel_reg = S2MPS11_REG_B5CTRL2, \
293 .vsel_mask = S2MPS11_BUCK_VSEL_MASK, \
294 .enable_reg = S2MPS11_REG_B5CTRL1, \
295 .enable_mask = S2MPS11_ENABLE_MASK \
296 }
297
298 #define regulator_desc_s2mps11_buck67810(num, min, step) { \
299 .name = "BUCK"#num, \
300 .id = S2MPS11_BUCK##num, \
301 .ops = &s2mps11_buck_ops, \
302 .type = REGULATOR_VOLTAGE, \
303 .owner = THIS_MODULE, \
304 .min_uV = min, \
305 .uV_step = step, \
306 .n_voltages = S2MPS11_BUCK_N_VOLTAGES, \
307 .ramp_delay = S2MPS11_RAMP_DELAY, \
308 .vsel_reg = S2MPS11_REG_B6CTRL2 + (num - 6) * 2, \
309 .vsel_mask = S2MPS11_BUCK_VSEL_MASK, \
310 .enable_reg = S2MPS11_REG_B6CTRL1 + (num - 6) * 2, \
311 .enable_mask = S2MPS11_ENABLE_MASK \
312 }
313
314 #define regulator_desc_s2mps11_buck9 { \
315 .name = "BUCK9", \
316 .id = S2MPS11_BUCK9, \
317 .ops = &s2mps11_buck_ops, \
318 .type = REGULATOR_VOLTAGE, \
319 .owner = THIS_MODULE, \
320 .min_uV = MIN_3000_MV, \
321 .uV_step = STEP_25_MV, \
322 .n_voltages = S2MPS11_BUCK9_N_VOLTAGES, \
323 .ramp_delay = S2MPS11_RAMP_DELAY, \
324 .vsel_reg = S2MPS11_REG_B9CTRL2, \
325 .vsel_mask = S2MPS11_BUCK9_VSEL_MASK, \
326 .enable_reg = S2MPS11_REG_B9CTRL1, \
327 .enable_mask = S2MPS11_ENABLE_MASK \
328 }
329
330 static const struct regulator_desc s2mps11_regulators[] = {
331 regulator_desc_s2mps11_ldo(1, STEP_25_MV),
332 regulator_desc_s2mps11_ldo(2, STEP_50_MV),
333 regulator_desc_s2mps11_ldo(3, STEP_50_MV),
334 regulator_desc_s2mps11_ldo(4, STEP_50_MV),
335 regulator_desc_s2mps11_ldo(5, STEP_50_MV),
336 regulator_desc_s2mps11_ldo(6, STEP_25_MV),
337 regulator_desc_s2mps11_ldo(7, STEP_50_MV),
338 regulator_desc_s2mps11_ldo(8, STEP_50_MV),
339 regulator_desc_s2mps11_ldo(9, STEP_50_MV),
340 regulator_desc_s2mps11_ldo(10, STEP_50_MV),
341 regulator_desc_s2mps11_ldo(11, STEP_25_MV),
342 regulator_desc_s2mps11_ldo(12, STEP_50_MV),
343 regulator_desc_s2mps11_ldo(13, STEP_50_MV),
344 regulator_desc_s2mps11_ldo(14, STEP_50_MV),
345 regulator_desc_s2mps11_ldo(15, STEP_50_MV),
346 regulator_desc_s2mps11_ldo(16, STEP_50_MV),
347 regulator_desc_s2mps11_ldo(17, STEP_50_MV),
348 regulator_desc_s2mps11_ldo(18, STEP_50_MV),
349 regulator_desc_s2mps11_ldo(19, STEP_50_MV),
350 regulator_desc_s2mps11_ldo(20, STEP_50_MV),
351 regulator_desc_s2mps11_ldo(21, STEP_50_MV),
352 regulator_desc_s2mps11_ldo(22, STEP_25_MV),
353 regulator_desc_s2mps11_ldo(23, STEP_25_MV),
354 regulator_desc_s2mps11_ldo(24, STEP_50_MV),
355 regulator_desc_s2mps11_ldo(25, STEP_50_MV),
356 regulator_desc_s2mps11_ldo(26, STEP_50_MV),
357 regulator_desc_s2mps11_ldo(27, STEP_25_MV),
358 regulator_desc_s2mps11_ldo(28, STEP_50_MV),
359 regulator_desc_s2mps11_ldo(29, STEP_50_MV),
360 regulator_desc_s2mps11_ldo(30, STEP_50_MV),
361 regulator_desc_s2mps11_ldo(31, STEP_50_MV),
362 regulator_desc_s2mps11_ldo(32, STEP_50_MV),
363 regulator_desc_s2mps11_ldo(33, STEP_50_MV),
364 regulator_desc_s2mps11_ldo(34, STEP_50_MV),
365 regulator_desc_s2mps11_ldo(35, STEP_25_MV),
366 regulator_desc_s2mps11_ldo(36, STEP_50_MV),
367 regulator_desc_s2mps11_ldo(37, STEP_50_MV),
368 regulator_desc_s2mps11_ldo(38, STEP_50_MV),
369 regulator_desc_s2mps11_buck1_4(1),
370 regulator_desc_s2mps11_buck1_4(2),
371 regulator_desc_s2mps11_buck1_4(3),
372 regulator_desc_s2mps11_buck1_4(4),
373 regulator_desc_s2mps11_buck5,
374 regulator_desc_s2mps11_buck67810(6, MIN_600_MV, STEP_6_25_MV),
375 regulator_desc_s2mps11_buck67810(7, MIN_600_MV, STEP_12_5_MV),
376 regulator_desc_s2mps11_buck67810(8, MIN_600_MV, STEP_12_5_MV),
377 regulator_desc_s2mps11_buck9,
378 regulator_desc_s2mps11_buck67810(10, MIN_750_MV, STEP_12_5_MV),
379 };
380
381 static const struct regulator_ops s2mps14_reg_ops;
382
383 #define regulator_desc_s2mps13_ldo(num, min, step, min_sel) { \
384 .name = "LDO"#num, \
385 .id = S2MPS13_LDO##num, \
386 .ops = &s2mps14_reg_ops, \
387 .type = REGULATOR_VOLTAGE, \
388 .owner = THIS_MODULE, \
389 .min_uV = min, \
390 .uV_step = step, \
391 .linear_min_sel = min_sel, \
392 .n_voltages = S2MPS14_LDO_N_VOLTAGES, \
393 .vsel_reg = S2MPS13_REG_L1CTRL + num - 1, \
394 .vsel_mask = S2MPS14_LDO_VSEL_MASK, \
395 .enable_reg = S2MPS13_REG_L1CTRL + num - 1, \
396 .enable_mask = S2MPS14_ENABLE_MASK \
397 }
398
399 #define regulator_desc_s2mps13_buck(num, min, step, min_sel) { \
400 .name = "BUCK"#num, \
401 .id = S2MPS13_BUCK##num, \
402 .ops = &s2mps14_reg_ops, \
403 .type = REGULATOR_VOLTAGE, \
404 .owner = THIS_MODULE, \
405 .min_uV = min, \
406 .uV_step = step, \
407 .linear_min_sel = min_sel, \
408 .n_voltages = S2MPS14_BUCK_N_VOLTAGES, \
409 .ramp_delay = S2MPS13_BUCK_RAMP_DELAY, \
410 .vsel_reg = S2MPS13_REG_B1OUT + (num - 1) * 2, \
411 .vsel_mask = S2MPS14_BUCK_VSEL_MASK, \
412 .enable_reg = S2MPS13_REG_B1CTRL + (num - 1) * 2, \
413 .enable_mask = S2MPS14_ENABLE_MASK \
414 }
415
416 #define regulator_desc_s2mps13_buck7(num, min, step, min_sel) { \
417 .name = "BUCK"#num, \
418 .id = S2MPS13_BUCK##num, \
419 .ops = &s2mps14_reg_ops, \
420 .type = REGULATOR_VOLTAGE, \
421 .owner = THIS_MODULE, \
422 .min_uV = min, \
423 .uV_step = step, \
424 .linear_min_sel = min_sel, \
425 .n_voltages = S2MPS14_BUCK_N_VOLTAGES, \
426 .ramp_delay = S2MPS13_BUCK_RAMP_DELAY, \
427 .vsel_reg = S2MPS13_REG_B1OUT + (num) * 2 - 1, \
428 .vsel_mask = S2MPS14_BUCK_VSEL_MASK, \
429 .enable_reg = S2MPS13_REG_B1CTRL + (num - 1) * 2, \
430 .enable_mask = S2MPS14_ENABLE_MASK \
431 }
432
433 #define regulator_desc_s2mps13_buck8_10(num, min, step, min_sel) { \
434 .name = "BUCK"#num, \
435 .id = S2MPS13_BUCK##num, \
436 .ops = &s2mps14_reg_ops, \
437 .type = REGULATOR_VOLTAGE, \
438 .owner = THIS_MODULE, \
439 .min_uV = min, \
440 .uV_step = step, \
441 .linear_min_sel = min_sel, \
442 .n_voltages = S2MPS14_BUCK_N_VOLTAGES, \
443 .ramp_delay = S2MPS13_BUCK_RAMP_DELAY, \
444 .vsel_reg = S2MPS13_REG_B1OUT + (num) * 2 - 1, \
445 .vsel_mask = S2MPS14_BUCK_VSEL_MASK, \
446 .enable_reg = S2MPS13_REG_B1CTRL + (num) * 2 - 1, \
447 .enable_mask = S2MPS14_ENABLE_MASK \
448 }
449
450 static const struct regulator_desc s2mps13_regulators[] = {
451 regulator_desc_s2mps13_ldo(1, MIN_800_MV, STEP_12_5_MV, 0x00),
452 regulator_desc_s2mps13_ldo(2, MIN_1400_MV, STEP_50_MV, 0x0C),
453 regulator_desc_s2mps13_ldo(3, MIN_1000_MV, STEP_25_MV, 0x08),
454 regulator_desc_s2mps13_ldo(4, MIN_800_MV, STEP_12_5_MV, 0x00),
455 regulator_desc_s2mps13_ldo(5, MIN_800_MV, STEP_12_5_MV, 0x00),
456 regulator_desc_s2mps13_ldo(6, MIN_800_MV, STEP_12_5_MV, 0x00),
457 regulator_desc_s2mps13_ldo(7, MIN_1000_MV, STEP_25_MV, 0x08),
458 regulator_desc_s2mps13_ldo(8, MIN_1000_MV, STEP_25_MV, 0x08),
459 regulator_desc_s2mps13_ldo(9, MIN_1000_MV, STEP_25_MV, 0x08),
460 regulator_desc_s2mps13_ldo(10, MIN_1400_MV, STEP_50_MV, 0x0C),
461 regulator_desc_s2mps13_ldo(11, MIN_800_MV, STEP_25_MV, 0x10),
462 regulator_desc_s2mps13_ldo(12, MIN_800_MV, STEP_25_MV, 0x10),
463 regulator_desc_s2mps13_ldo(13, MIN_800_MV, STEP_25_MV, 0x10),
464 regulator_desc_s2mps13_ldo(14, MIN_800_MV, STEP_12_5_MV, 0x00),
465 regulator_desc_s2mps13_ldo(15, MIN_800_MV, STEP_12_5_MV, 0x00),
466 regulator_desc_s2mps13_ldo(16, MIN_1400_MV, STEP_50_MV, 0x0C),
467 regulator_desc_s2mps13_ldo(17, MIN_1400_MV, STEP_50_MV, 0x0C),
468 regulator_desc_s2mps13_ldo(18, MIN_1000_MV, STEP_25_MV, 0x08),
469 regulator_desc_s2mps13_ldo(19, MIN_1000_MV, STEP_25_MV, 0x08),
470 regulator_desc_s2mps13_ldo(20, MIN_1400_MV, STEP_50_MV, 0x0C),
471 regulator_desc_s2mps13_ldo(21, MIN_1000_MV, STEP_25_MV, 0x08),
472 regulator_desc_s2mps13_ldo(22, MIN_1000_MV, STEP_25_MV, 0x08),
473 regulator_desc_s2mps13_ldo(23, MIN_800_MV, STEP_12_5_MV, 0x00),
474 regulator_desc_s2mps13_ldo(24, MIN_800_MV, STEP_12_5_MV, 0x00),
475 regulator_desc_s2mps13_ldo(25, MIN_1400_MV, STEP_50_MV, 0x0C),
476 regulator_desc_s2mps13_ldo(26, MIN_1400_MV, STEP_50_MV, 0x0C),
477 regulator_desc_s2mps13_ldo(27, MIN_1400_MV, STEP_50_MV, 0x0C),
478 regulator_desc_s2mps13_ldo(28, MIN_1000_MV, STEP_25_MV, 0x08),
479 regulator_desc_s2mps13_ldo(29, MIN_1400_MV, STEP_50_MV, 0x0C),
480 regulator_desc_s2mps13_ldo(30, MIN_1400_MV, STEP_50_MV, 0x0C),
481 regulator_desc_s2mps13_ldo(31, MIN_1000_MV, STEP_25_MV, 0x08),
482 regulator_desc_s2mps13_ldo(32, MIN_1000_MV, STEP_25_MV, 0x08),
483 regulator_desc_s2mps13_ldo(33, MIN_1400_MV, STEP_50_MV, 0x0C),
484 regulator_desc_s2mps13_ldo(34, MIN_1000_MV, STEP_25_MV, 0x08),
485 regulator_desc_s2mps13_ldo(35, MIN_1400_MV, STEP_50_MV, 0x0C),
486 regulator_desc_s2mps13_ldo(36, MIN_800_MV, STEP_12_5_MV, 0x00),
487 regulator_desc_s2mps13_ldo(37, MIN_1000_MV, STEP_25_MV, 0x08),
488 regulator_desc_s2mps13_ldo(38, MIN_1400_MV, STEP_50_MV, 0x0C),
489 regulator_desc_s2mps13_ldo(39, MIN_1000_MV, STEP_25_MV, 0x08),
490 regulator_desc_s2mps13_ldo(40, MIN_1400_MV, STEP_50_MV, 0x0C),
491 regulator_desc_s2mps13_buck(1, MIN_500_MV, STEP_6_25_MV, 0x10),
492 regulator_desc_s2mps13_buck(2, MIN_500_MV, STEP_6_25_MV, 0x10),
493 regulator_desc_s2mps13_buck(3, MIN_500_MV, STEP_6_25_MV, 0x10),
494 regulator_desc_s2mps13_buck(4, MIN_500_MV, STEP_6_25_MV, 0x10),
495 regulator_desc_s2mps13_buck(5, MIN_500_MV, STEP_6_25_MV, 0x10),
496 regulator_desc_s2mps13_buck(6, MIN_500_MV, STEP_6_25_MV, 0x10),
497 regulator_desc_s2mps13_buck7(7, MIN_500_MV, STEP_6_25_MV, 0x10),
498 regulator_desc_s2mps13_buck8_10(8, MIN_1000_MV, STEP_12_5_MV, 0x20),
499 regulator_desc_s2mps13_buck8_10(9, MIN_1000_MV, STEP_12_5_MV, 0x20),
500 regulator_desc_s2mps13_buck8_10(10, MIN_500_MV, STEP_6_25_MV, 0x10),
501 };
502
503 static int s2mps14_regulator_enable(struct regulator_dev *rdev)
504 {
505 struct s2mps11_info *s2mps11 = rdev_get_drvdata(rdev);
506 unsigned int val;
507
508 switch (s2mps11->dev_type) {
509 case S2MPS13X:
510 case S2MPS14X:
511 if (test_bit(rdev_get_id(rdev), s2mps11->suspend_state))
512 val = S2MPS14_ENABLE_SUSPEND;
513 else if (s2mps11->ext_control_gpiod[rdev_get_id(rdev)])
514 val = S2MPS14_ENABLE_EXT_CONTROL;
515 else
516 val = rdev->desc->enable_mask;
517 break;
518 case S2MPU02:
519 if (test_bit(rdev_get_id(rdev), s2mps11->suspend_state))
520 val = S2MPU02_ENABLE_SUSPEND;
521 else
522 val = rdev->desc->enable_mask;
523 break;
524 default:
525 return -EINVAL;
526 }
527
528 return regmap_update_bits(rdev->regmap, rdev->desc->enable_reg,
529 rdev->desc->enable_mask, val);
530 }
531
532 static int s2mps14_regulator_set_suspend_disable(struct regulator_dev *rdev)
533 {
534 int ret;
535 unsigned int val, state;
536 struct s2mps11_info *s2mps11 = rdev_get_drvdata(rdev);
537 int rdev_id = rdev_get_id(rdev);
538
539 /* Below LDO should be always on or does not support suspend mode. */
540 switch (s2mps11->dev_type) {
541 case S2MPS13X:
542 case S2MPS14X:
543 switch (rdev_id) {
544 case S2MPS14_LDO3:
545 return 0;
546 default:
547 state = S2MPS14_ENABLE_SUSPEND;
548 break;
549 }
550 break;
551 case S2MPU02:
552 switch (rdev_id) {
553 case S2MPU02_LDO13:
554 case S2MPU02_LDO14:
555 case S2MPU02_LDO15:
556 case S2MPU02_LDO17:
557 case S2MPU02_BUCK7:
558 state = S2MPU02_DISABLE_SUSPEND;
559 break;
560 default:
561 state = S2MPU02_ENABLE_SUSPEND;
562 break;
563 }
564 break;
565 default:
566 return -EINVAL;
567 }
568
569 ret = regmap_read(rdev->regmap, rdev->desc->enable_reg, &val);
570 if (ret < 0)
571 return ret;
572
573 set_bit(rdev_get_id(rdev), s2mps11->suspend_state);
574 /*
575 * Don't enable suspend mode if regulator is already disabled because
576 * this would effectively for a short time turn on the regulator after
577 * resuming.
578 * However we still want to toggle the suspend_state bit for regulator
579 * in case if it got enabled before suspending the system.
580 */
581 if (!(val & rdev->desc->enable_mask))
582 return 0;
583
584 return regmap_update_bits(rdev->regmap, rdev->desc->enable_reg,
585 rdev->desc->enable_mask, state);
586 }
587
588 static const struct regulator_ops s2mps14_reg_ops = {
589 .list_voltage = regulator_list_voltage_linear,
590 .map_voltage = regulator_map_voltage_linear,
591 .is_enabled = regulator_is_enabled_regmap,
592 .enable = s2mps14_regulator_enable,
593 .disable = regulator_disable_regmap,
594 .get_voltage_sel = regulator_get_voltage_sel_regmap,
595 .set_voltage_sel = regulator_set_voltage_sel_regmap,
596 .set_voltage_time_sel = regulator_set_voltage_time_sel,
597 .set_suspend_disable = s2mps14_regulator_set_suspend_disable,
598 };
599
600 #define regulator_desc_s2mps14_ldo(num, min, step) { \
601 .name = "LDO"#num, \
602 .id = S2MPS14_LDO##num, \
603 .ops = &s2mps14_reg_ops, \
604 .type = REGULATOR_VOLTAGE, \
605 .owner = THIS_MODULE, \
606 .min_uV = min, \
607 .uV_step = step, \
608 .n_voltages = S2MPS14_LDO_N_VOLTAGES, \
609 .vsel_reg = S2MPS14_REG_L1CTRL + num - 1, \
610 .vsel_mask = S2MPS14_LDO_VSEL_MASK, \
611 .enable_reg = S2MPS14_REG_L1CTRL + num - 1, \
612 .enable_mask = S2MPS14_ENABLE_MASK \
613 }
614
615 #define regulator_desc_s2mps14_buck(num, min, step, min_sel) { \
616 .name = "BUCK"#num, \
617 .id = S2MPS14_BUCK##num, \
618 .ops = &s2mps14_reg_ops, \
619 .type = REGULATOR_VOLTAGE, \
620 .owner = THIS_MODULE, \
621 .min_uV = min, \
622 .uV_step = step, \
623 .n_voltages = S2MPS14_BUCK_N_VOLTAGES, \
624 .linear_min_sel = min_sel, \
625 .ramp_delay = S2MPS14_BUCK_RAMP_DELAY, \
626 .vsel_reg = S2MPS14_REG_B1CTRL2 + (num - 1) * 2, \
627 .vsel_mask = S2MPS14_BUCK_VSEL_MASK, \
628 .enable_reg = S2MPS14_REG_B1CTRL1 + (num - 1) * 2, \
629 .enable_mask = S2MPS14_ENABLE_MASK \
630 }
631
632 static const struct regulator_desc s2mps14_regulators[] = {
633 regulator_desc_s2mps14_ldo(1, MIN_800_MV, STEP_12_5_MV),
634 regulator_desc_s2mps14_ldo(2, MIN_800_MV, STEP_12_5_MV),
635 regulator_desc_s2mps14_ldo(3, MIN_800_MV, STEP_25_MV),
636 regulator_desc_s2mps14_ldo(4, MIN_800_MV, STEP_25_MV),
637 regulator_desc_s2mps14_ldo(5, MIN_800_MV, STEP_12_5_MV),
638 regulator_desc_s2mps14_ldo(6, MIN_800_MV, STEP_12_5_MV),
639 regulator_desc_s2mps14_ldo(7, MIN_800_MV, STEP_25_MV),
640 regulator_desc_s2mps14_ldo(8, MIN_1800_MV, STEP_25_MV),
641 regulator_desc_s2mps14_ldo(9, MIN_800_MV, STEP_12_5_MV),
642 regulator_desc_s2mps14_ldo(10, MIN_800_MV, STEP_12_5_MV),
643 regulator_desc_s2mps14_ldo(11, MIN_800_MV, STEP_25_MV),
644 regulator_desc_s2mps14_ldo(12, MIN_1800_MV, STEP_25_MV),
645 regulator_desc_s2mps14_ldo(13, MIN_1800_MV, STEP_25_MV),
646 regulator_desc_s2mps14_ldo(14, MIN_1800_MV, STEP_25_MV),
647 regulator_desc_s2mps14_ldo(15, MIN_1800_MV, STEP_25_MV),
648 regulator_desc_s2mps14_ldo(16, MIN_1800_MV, STEP_25_MV),
649 regulator_desc_s2mps14_ldo(17, MIN_1800_MV, STEP_25_MV),
650 regulator_desc_s2mps14_ldo(18, MIN_1800_MV, STEP_25_MV),
651 regulator_desc_s2mps14_ldo(19, MIN_800_MV, STEP_25_MV),
652 regulator_desc_s2mps14_ldo(20, MIN_800_MV, STEP_25_MV),
653 regulator_desc_s2mps14_ldo(21, MIN_800_MV, STEP_25_MV),
654 regulator_desc_s2mps14_ldo(22, MIN_800_MV, STEP_12_5_MV),
655 regulator_desc_s2mps14_ldo(23, MIN_800_MV, STEP_25_MV),
656 regulator_desc_s2mps14_ldo(24, MIN_1800_MV, STEP_25_MV),
657 regulator_desc_s2mps14_ldo(25, MIN_1800_MV, STEP_25_MV),
658 regulator_desc_s2mps14_buck(1, MIN_600_MV, STEP_6_25_MV,
659 S2MPS14_BUCK1235_START_SEL),
660 regulator_desc_s2mps14_buck(2, MIN_600_MV, STEP_6_25_MV,
661 S2MPS14_BUCK1235_START_SEL),
662 regulator_desc_s2mps14_buck(3, MIN_600_MV, STEP_6_25_MV,
663 S2MPS14_BUCK1235_START_SEL),
664 regulator_desc_s2mps14_buck(4, MIN_1400_MV, STEP_12_5_MV,
665 S2MPS14_BUCK4_START_SEL),
666 regulator_desc_s2mps14_buck(5, MIN_600_MV, STEP_6_25_MV,
667 S2MPS14_BUCK1235_START_SEL),
668 };
669
670 static const struct regulator_ops s2mps15_reg_ldo_ops = {
671 .list_voltage = regulator_list_voltage_linear_range,
672 .map_voltage = regulator_map_voltage_linear_range,
673 .is_enabled = regulator_is_enabled_regmap,
674 .enable = regulator_enable_regmap,
675 .disable = regulator_disable_regmap,
676 .get_voltage_sel = regulator_get_voltage_sel_regmap,
677 .set_voltage_sel = regulator_set_voltage_sel_regmap,
678 };
679
680 static const struct regulator_ops s2mps15_reg_buck_ops = {
681 .list_voltage = regulator_list_voltage_linear_range,
682 .map_voltage = regulator_map_voltage_linear_range,
683 .is_enabled = regulator_is_enabled_regmap,
684 .enable = regulator_enable_regmap,
685 .disable = regulator_disable_regmap,
686 .get_voltage_sel = regulator_get_voltage_sel_regmap,
687 .set_voltage_sel = regulator_set_voltage_sel_regmap,
688 .set_voltage_time_sel = regulator_set_voltage_time_sel,
689 };
690
691 #define regulator_desc_s2mps15_ldo(num, range) { \
692 .name = "LDO"#num, \
693 .id = S2MPS15_LDO##num, \
694 .ops = &s2mps15_reg_ldo_ops, \
695 .type = REGULATOR_VOLTAGE, \
696 .owner = THIS_MODULE, \
697 .linear_ranges = range, \
698 .n_linear_ranges = ARRAY_SIZE(range), \
699 .n_voltages = S2MPS15_LDO_N_VOLTAGES, \
700 .vsel_reg = S2MPS15_REG_L1CTRL + num - 1, \
701 .vsel_mask = S2MPS15_LDO_VSEL_MASK, \
702 .enable_reg = S2MPS15_REG_L1CTRL + num - 1, \
703 .enable_mask = S2MPS15_ENABLE_MASK \
704 }
705
706 #define regulator_desc_s2mps15_buck(num, range) { \
707 .name = "BUCK"#num, \
708 .id = S2MPS15_BUCK##num, \
709 .ops = &s2mps15_reg_buck_ops, \
710 .type = REGULATOR_VOLTAGE, \
711 .owner = THIS_MODULE, \
712 .linear_ranges = range, \
713 .n_linear_ranges = ARRAY_SIZE(range), \
714 .ramp_delay = 12500, \
715 .n_voltages = S2MPS15_BUCK_N_VOLTAGES, \
716 .vsel_reg = S2MPS15_REG_B1CTRL2 + ((num - 1) * 2), \
717 .vsel_mask = S2MPS15_BUCK_VSEL_MASK, \
718 .enable_reg = S2MPS15_REG_B1CTRL1 + ((num - 1) * 2), \
719 .enable_mask = S2MPS15_ENABLE_MASK \
720 }
721
722 /* voltage range for s2mps15 LDO 3, 5, 15, 16, 18, 20, 23 and 27 */
723 static const struct regulator_linear_range s2mps15_ldo_voltage_ranges1[] = {
724 REGULATOR_LINEAR_RANGE(1000000, 0xc, 0x38, 25000),
725 };
726
727 /* voltage range for s2mps15 LDO 2, 6, 14, 17, 19, 21, 24 and 25 */
728 static const struct regulator_linear_range s2mps15_ldo_voltage_ranges2[] = {
729 REGULATOR_LINEAR_RANGE(1800000, 0x0, 0x3f, 25000),
730 };
731
732 /* voltage range for s2mps15 LDO 4, 11, 12, 13, 22 and 26 */
733 static const struct regulator_linear_range s2mps15_ldo_voltage_ranges3[] = {
734 REGULATOR_LINEAR_RANGE(700000, 0x0, 0x34, 12500),
735 };
736
737 /* voltage range for s2mps15 LDO 7, 8, 9 and 10 */
738 static const struct regulator_linear_range s2mps15_ldo_voltage_ranges4[] = {
739 REGULATOR_LINEAR_RANGE(700000, 0x10, 0x20, 25000),
740 };
741
742 /* voltage range for s2mps15 LDO 1 */
743 static const struct regulator_linear_range s2mps15_ldo_voltage_ranges5[] = {
744 REGULATOR_LINEAR_RANGE(500000, 0x0, 0x20, 12500),
745 };
746
747 /* voltage range for s2mps15 BUCK 1, 2, 3, 4, 5, 6 and 7 */
748 static const struct regulator_linear_range s2mps15_buck_voltage_ranges1[] = {
749 REGULATOR_LINEAR_RANGE(500000, 0x20, 0xc0, 6250),
750 };
751
752 /* voltage range for s2mps15 BUCK 8, 9 and 10 */
753 static const struct regulator_linear_range s2mps15_buck_voltage_ranges2[] = {
754 REGULATOR_LINEAR_RANGE(1000000, 0x20, 0x78, 12500),
755 };
756
757 static const struct regulator_desc s2mps15_regulators[] = {
758 regulator_desc_s2mps15_ldo(1, s2mps15_ldo_voltage_ranges5),
759 regulator_desc_s2mps15_ldo(2, s2mps15_ldo_voltage_ranges2),
760 regulator_desc_s2mps15_ldo(3, s2mps15_ldo_voltage_ranges1),
761 regulator_desc_s2mps15_ldo(4, s2mps15_ldo_voltage_ranges3),
762 regulator_desc_s2mps15_ldo(5, s2mps15_ldo_voltage_ranges1),
763 regulator_desc_s2mps15_ldo(6, s2mps15_ldo_voltage_ranges2),
764 regulator_desc_s2mps15_ldo(7, s2mps15_ldo_voltage_ranges4),
765 regulator_desc_s2mps15_ldo(8, s2mps15_ldo_voltage_ranges4),
766 regulator_desc_s2mps15_ldo(9, s2mps15_ldo_voltage_ranges4),
767 regulator_desc_s2mps15_ldo(10, s2mps15_ldo_voltage_ranges4),
768 regulator_desc_s2mps15_ldo(11, s2mps15_ldo_voltage_ranges3),
769 regulator_desc_s2mps15_ldo(12, s2mps15_ldo_voltage_ranges3),
770 regulator_desc_s2mps15_ldo(13, s2mps15_ldo_voltage_ranges3),
771 regulator_desc_s2mps15_ldo(14, s2mps15_ldo_voltage_ranges2),
772 regulator_desc_s2mps15_ldo(15, s2mps15_ldo_voltage_ranges1),
773 regulator_desc_s2mps15_ldo(16, s2mps15_ldo_voltage_ranges1),
774 regulator_desc_s2mps15_ldo(17, s2mps15_ldo_voltage_ranges2),
775 regulator_desc_s2mps15_ldo(18, s2mps15_ldo_voltage_ranges1),
776 regulator_desc_s2mps15_ldo(19, s2mps15_ldo_voltage_ranges2),
777 regulator_desc_s2mps15_ldo(20, s2mps15_ldo_voltage_ranges1),
778 regulator_desc_s2mps15_ldo(21, s2mps15_ldo_voltage_ranges2),
779 regulator_desc_s2mps15_ldo(22, s2mps15_ldo_voltage_ranges3),
780 regulator_desc_s2mps15_ldo(23, s2mps15_ldo_voltage_ranges1),
781 regulator_desc_s2mps15_ldo(24, s2mps15_ldo_voltage_ranges2),
782 regulator_desc_s2mps15_ldo(25, s2mps15_ldo_voltage_ranges2),
783 regulator_desc_s2mps15_ldo(26, s2mps15_ldo_voltage_ranges3),
784 regulator_desc_s2mps15_ldo(27, s2mps15_ldo_voltage_ranges1),
785 regulator_desc_s2mps15_buck(1, s2mps15_buck_voltage_ranges1),
786 regulator_desc_s2mps15_buck(2, s2mps15_buck_voltage_ranges1),
787 regulator_desc_s2mps15_buck(3, s2mps15_buck_voltage_ranges1),
788 regulator_desc_s2mps15_buck(4, s2mps15_buck_voltage_ranges1),
789 regulator_desc_s2mps15_buck(5, s2mps15_buck_voltage_ranges1),
790 regulator_desc_s2mps15_buck(6, s2mps15_buck_voltage_ranges1),
791 regulator_desc_s2mps15_buck(7, s2mps15_buck_voltage_ranges1),
792 regulator_desc_s2mps15_buck(8, s2mps15_buck_voltage_ranges2),
793 regulator_desc_s2mps15_buck(9, s2mps15_buck_voltage_ranges2),
794 regulator_desc_s2mps15_buck(10, s2mps15_buck_voltage_ranges2),
795 };
796
797 static int s2mps14_pmic_enable_ext_control(struct s2mps11_info *s2mps11,
798 struct regulator_dev *rdev)
799 {
800 return regmap_update_bits(rdev->regmap, rdev->desc->enable_reg,
801 rdev->desc->enable_mask, S2MPS14_ENABLE_EXT_CONTROL);
802 }
803
804 static void s2mps14_pmic_dt_parse_ext_control_gpio(struct platform_device *pdev,
805 struct of_regulator_match *rdata, struct s2mps11_info *s2mps11)
806 {
807 struct gpio_desc **gpio = s2mps11->ext_control_gpiod;
808 unsigned int i;
809 unsigned int valid_regulators[3] = { S2MPS14_LDO10, S2MPS14_LDO11,
810 S2MPS14_LDO12 };
811
812 for (i = 0; i < ARRAY_SIZE(valid_regulators); i++) {
813 unsigned int reg = valid_regulators[i];
814
815 if (!rdata[reg].init_data || !rdata[reg].of_node)
816 continue;
817
818 gpio[reg] = devm_gpiod_get_from_of_node(&pdev->dev,
819 rdata[reg].of_node,
820 "samsung,ext-control-gpios",
821 0,
822 GPIOD_OUT_HIGH | GPIOD_FLAGS_BIT_NONEXCLUSIVE,
823 "s2mps11-regulator");
824 if (IS_ERR(gpio[reg])) {
825 dev_err(&pdev->dev, "Failed to get control GPIO for %d/%s\n",
826 reg, rdata[reg].name);
827 continue;
828 }
829 if (gpio[reg])
830 dev_dbg(&pdev->dev, "Using GPIO for ext-control over %d/%s\n",
831 reg, rdata[reg].name);
832 }
833 }
834
835 static int s2mps11_pmic_dt_parse(struct platform_device *pdev,
836 struct of_regulator_match *rdata, struct s2mps11_info *s2mps11,
837 unsigned int rdev_num)
838 {
839 struct device_node *reg_np;
840
841 reg_np = of_get_child_by_name(pdev->dev.parent->of_node, "regulators");
842 if (!reg_np) {
843 dev_err(&pdev->dev, "could not find regulators sub-node\n");
844 return -EINVAL;
845 }
846
847 of_regulator_match(&pdev->dev, reg_np, rdata, rdev_num);
848 if (s2mps11->dev_type == S2MPS14X)
849 s2mps14_pmic_dt_parse_ext_control_gpio(pdev, rdata, s2mps11);
850
851 of_node_put(reg_np);
852
853 return 0;
854 }
855
856 static int s2mpu02_set_ramp_delay(struct regulator_dev *rdev, int ramp_delay)
857 {
858 unsigned int ramp_val, ramp_shift, ramp_reg;
859
860 switch (rdev_get_id(rdev)) {
861 case S2MPU02_BUCK1:
862 ramp_shift = S2MPU02_BUCK1_RAMP_SHIFT;
863 break;
864 case S2MPU02_BUCK2:
865 ramp_shift = S2MPU02_BUCK2_RAMP_SHIFT;
866 break;
867 case S2MPU02_BUCK3:
868 ramp_shift = S2MPU02_BUCK3_RAMP_SHIFT;
869 break;
870 case S2MPU02_BUCK4:
871 ramp_shift = S2MPU02_BUCK4_RAMP_SHIFT;
872 break;
873 default:
874 return 0;
875 }
876 ramp_reg = S2MPU02_REG_RAMP1;
877 ramp_val = get_ramp_delay(ramp_delay);
878
879 return regmap_update_bits(rdev->regmap, ramp_reg,
880 S2MPU02_BUCK1234_RAMP_MASK << ramp_shift,
881 ramp_val << ramp_shift);
882 }
883
884 static const struct regulator_ops s2mpu02_ldo_ops = {
885 .list_voltage = regulator_list_voltage_linear,
886 .map_voltage = regulator_map_voltage_linear,
887 .is_enabled = regulator_is_enabled_regmap,
888 .enable = s2mps14_regulator_enable,
889 .disable = regulator_disable_regmap,
890 .get_voltage_sel = regulator_get_voltage_sel_regmap,
891 .set_voltage_sel = regulator_set_voltage_sel_regmap,
892 .set_voltage_time_sel = regulator_set_voltage_time_sel,
893 .set_suspend_disable = s2mps14_regulator_set_suspend_disable,
894 };
895
896 static const struct regulator_ops s2mpu02_buck_ops = {
897 .list_voltage = regulator_list_voltage_linear,
898 .map_voltage = regulator_map_voltage_linear,
899 .is_enabled = regulator_is_enabled_regmap,
900 .enable = s2mps14_regulator_enable,
901 .disable = regulator_disable_regmap,
902 .get_voltage_sel = regulator_get_voltage_sel_regmap,
903 .set_voltage_sel = regulator_set_voltage_sel_regmap,
904 .set_voltage_time_sel = regulator_set_voltage_time_sel,
905 .set_suspend_disable = s2mps14_regulator_set_suspend_disable,
906 .set_ramp_delay = s2mpu02_set_ramp_delay,
907 };
908
909 #define regulator_desc_s2mpu02_ldo1(num) { \
910 .name = "LDO"#num, \
911 .id = S2MPU02_LDO##num, \
912 .ops = &s2mpu02_ldo_ops, \
913 .type = REGULATOR_VOLTAGE, \
914 .owner = THIS_MODULE, \
915 .min_uV = S2MPU02_LDO_MIN_900MV, \
916 .uV_step = S2MPU02_LDO_STEP_12_5MV, \
917 .linear_min_sel = S2MPU02_LDO_GROUP1_START_SEL, \
918 .n_voltages = S2MPU02_LDO_N_VOLTAGES, \
919 .vsel_reg = S2MPU02_REG_L1CTRL, \
920 .vsel_mask = S2MPU02_LDO_VSEL_MASK, \
921 .enable_reg = S2MPU02_REG_L1CTRL, \
922 .enable_mask = S2MPU02_ENABLE_MASK \
923 }
924 #define regulator_desc_s2mpu02_ldo2(num) { \
925 .name = "LDO"#num, \
926 .id = S2MPU02_LDO##num, \
927 .ops = &s2mpu02_ldo_ops, \
928 .type = REGULATOR_VOLTAGE, \
929 .owner = THIS_MODULE, \
930 .min_uV = S2MPU02_LDO_MIN_1050MV, \
931 .uV_step = S2MPU02_LDO_STEP_25MV, \
932 .linear_min_sel = S2MPU02_LDO_GROUP2_START_SEL, \
933 .n_voltages = S2MPU02_LDO_N_VOLTAGES, \
934 .vsel_reg = S2MPU02_REG_L2CTRL1, \
935 .vsel_mask = S2MPU02_LDO_VSEL_MASK, \
936 .enable_reg = S2MPU02_REG_L2CTRL1, \
937 .enable_mask = S2MPU02_ENABLE_MASK \
938 }
939 #define regulator_desc_s2mpu02_ldo3(num) { \
940 .name = "LDO"#num, \
941 .id = S2MPU02_LDO##num, \
942 .ops = &s2mpu02_ldo_ops, \
943 .type = REGULATOR_VOLTAGE, \
944 .owner = THIS_MODULE, \
945 .min_uV = S2MPU02_LDO_MIN_900MV, \
946 .uV_step = S2MPU02_LDO_STEP_12_5MV, \
947 .linear_min_sel = S2MPU02_LDO_GROUP1_START_SEL, \
948 .n_voltages = S2MPU02_LDO_N_VOLTAGES, \
949 .vsel_reg = S2MPU02_REG_L3CTRL + num - 3, \
950 .vsel_mask = S2MPU02_LDO_VSEL_MASK, \
951 .enable_reg = S2MPU02_REG_L3CTRL + num - 3, \
952 .enable_mask = S2MPU02_ENABLE_MASK \
953 }
954 #define regulator_desc_s2mpu02_ldo4(num) { \
955 .name = "LDO"#num, \
956 .id = S2MPU02_LDO##num, \
957 .ops = &s2mpu02_ldo_ops, \
958 .type = REGULATOR_VOLTAGE, \
959 .owner = THIS_MODULE, \
960 .min_uV = S2MPU02_LDO_MIN_1050MV, \
961 .uV_step = S2MPU02_LDO_STEP_25MV, \
962 .linear_min_sel = S2MPU02_LDO_GROUP2_START_SEL, \
963 .n_voltages = S2MPU02_LDO_N_VOLTAGES, \
964 .vsel_reg = S2MPU02_REG_L3CTRL + num - 3, \
965 .vsel_mask = S2MPU02_LDO_VSEL_MASK, \
966 .enable_reg = S2MPU02_REG_L3CTRL + num - 3, \
967 .enable_mask = S2MPU02_ENABLE_MASK \
968 }
969 #define regulator_desc_s2mpu02_ldo5(num) { \
970 .name = "LDO"#num, \
971 .id = S2MPU02_LDO##num, \
972 .ops = &s2mpu02_ldo_ops, \
973 .type = REGULATOR_VOLTAGE, \
974 .owner = THIS_MODULE, \
975 .min_uV = S2MPU02_LDO_MIN_1600MV, \
976 .uV_step = S2MPU02_LDO_STEP_50MV, \
977 .linear_min_sel = S2MPU02_LDO_GROUP3_START_SEL, \
978 .n_voltages = S2MPU02_LDO_N_VOLTAGES, \
979 .vsel_reg = S2MPU02_REG_L3CTRL + num - 3, \
980 .vsel_mask = S2MPU02_LDO_VSEL_MASK, \
981 .enable_reg = S2MPU02_REG_L3CTRL + num - 3, \
982 .enable_mask = S2MPU02_ENABLE_MASK \
983 }
984
985 #define regulator_desc_s2mpu02_buck1234(num) { \
986 .name = "BUCK"#num, \
987 .id = S2MPU02_BUCK##num, \
988 .ops = &s2mpu02_buck_ops, \
989 .type = REGULATOR_VOLTAGE, \
990 .owner = THIS_MODULE, \
991 .min_uV = S2MPU02_BUCK1234_MIN_600MV, \
992 .uV_step = S2MPU02_BUCK1234_STEP_6_25MV, \
993 .n_voltages = S2MPU02_BUCK_N_VOLTAGES, \
994 .linear_min_sel = S2MPU02_BUCK1234_START_SEL, \
995 .ramp_delay = S2MPU02_BUCK_RAMP_DELAY, \
996 .vsel_reg = S2MPU02_REG_B1CTRL2 + (num - 1) * 2, \
997 .vsel_mask = S2MPU02_BUCK_VSEL_MASK, \
998 .enable_reg = S2MPU02_REG_B1CTRL1 + (num - 1) * 2, \
999 .enable_mask = S2MPU02_ENABLE_MASK \
1000 }
1001 #define regulator_desc_s2mpu02_buck5(num) { \
1002 .name = "BUCK"#num, \
1003 .id = S2MPU02_BUCK##num, \
1004 .ops = &s2mpu02_ldo_ops, \
1005 .type = REGULATOR_VOLTAGE, \
1006 .owner = THIS_MODULE, \
1007 .min_uV = S2MPU02_BUCK5_MIN_1081_25MV, \
1008 .uV_step = S2MPU02_BUCK5_STEP_6_25MV, \
1009 .n_voltages = S2MPU02_BUCK_N_VOLTAGES, \
1010 .linear_min_sel = S2MPU02_BUCK5_START_SEL, \
1011 .ramp_delay = S2MPU02_BUCK_RAMP_DELAY, \
1012 .vsel_reg = S2MPU02_REG_B5CTRL2, \
1013 .vsel_mask = S2MPU02_BUCK_VSEL_MASK, \
1014 .enable_reg = S2MPU02_REG_B5CTRL1, \
1015 .enable_mask = S2MPU02_ENABLE_MASK \
1016 }
1017 #define regulator_desc_s2mpu02_buck6(num) { \
1018 .name = "BUCK"#num, \
1019 .id = S2MPU02_BUCK##num, \
1020 .ops = &s2mpu02_ldo_ops, \
1021 .type = REGULATOR_VOLTAGE, \
1022 .owner = THIS_MODULE, \
1023 .min_uV = S2MPU02_BUCK6_MIN_1700MV, \
1024 .uV_step = S2MPU02_BUCK6_STEP_2_50MV, \
1025 .n_voltages = S2MPU02_BUCK_N_VOLTAGES, \
1026 .linear_min_sel = S2MPU02_BUCK6_START_SEL, \
1027 .ramp_delay = S2MPU02_BUCK_RAMP_DELAY, \
1028 .vsel_reg = S2MPU02_REG_B6CTRL2, \
1029 .vsel_mask = S2MPU02_BUCK_VSEL_MASK, \
1030 .enable_reg = S2MPU02_REG_B6CTRL1, \
1031 .enable_mask = S2MPU02_ENABLE_MASK \
1032 }
1033 #define regulator_desc_s2mpu02_buck7(num) { \
1034 .name = "BUCK"#num, \
1035 .id = S2MPU02_BUCK##num, \
1036 .ops = &s2mpu02_ldo_ops, \
1037 .type = REGULATOR_VOLTAGE, \
1038 .owner = THIS_MODULE, \
1039 .min_uV = S2MPU02_BUCK7_MIN_900MV, \
1040 .uV_step = S2MPU02_BUCK7_STEP_6_25MV, \
1041 .n_voltages = S2MPU02_BUCK_N_VOLTAGES, \
1042 .linear_min_sel = S2MPU02_BUCK7_START_SEL, \
1043 .ramp_delay = S2MPU02_BUCK_RAMP_DELAY, \
1044 .vsel_reg = S2MPU02_REG_B7CTRL2, \
1045 .vsel_mask = S2MPU02_BUCK_VSEL_MASK, \
1046 .enable_reg = S2MPU02_REG_B7CTRL1, \
1047 .enable_mask = S2MPU02_ENABLE_MASK \
1048 }
1049
1050 static const struct regulator_desc s2mpu02_regulators[] = {
1051 regulator_desc_s2mpu02_ldo1(1),
1052 regulator_desc_s2mpu02_ldo2(2),
1053 regulator_desc_s2mpu02_ldo4(3),
1054 regulator_desc_s2mpu02_ldo5(4),
1055 regulator_desc_s2mpu02_ldo4(5),
1056 regulator_desc_s2mpu02_ldo3(6),
1057 regulator_desc_s2mpu02_ldo3(7),
1058 regulator_desc_s2mpu02_ldo4(8),
1059 regulator_desc_s2mpu02_ldo5(9),
1060 regulator_desc_s2mpu02_ldo3(10),
1061 regulator_desc_s2mpu02_ldo4(11),
1062 regulator_desc_s2mpu02_ldo5(12),
1063 regulator_desc_s2mpu02_ldo5(13),
1064 regulator_desc_s2mpu02_ldo5(14),
1065 regulator_desc_s2mpu02_ldo5(15),
1066 regulator_desc_s2mpu02_ldo5(16),
1067 regulator_desc_s2mpu02_ldo4(17),
1068 regulator_desc_s2mpu02_ldo5(18),
1069 regulator_desc_s2mpu02_ldo3(19),
1070 regulator_desc_s2mpu02_ldo4(20),
1071 regulator_desc_s2mpu02_ldo5(21),
1072 regulator_desc_s2mpu02_ldo5(22),
1073 regulator_desc_s2mpu02_ldo5(23),
1074 regulator_desc_s2mpu02_ldo4(24),
1075 regulator_desc_s2mpu02_ldo5(25),
1076 regulator_desc_s2mpu02_ldo4(26),
1077 regulator_desc_s2mpu02_ldo5(27),
1078 regulator_desc_s2mpu02_ldo5(28),
1079 regulator_desc_s2mpu02_buck1234(1),
1080 regulator_desc_s2mpu02_buck1234(2),
1081 regulator_desc_s2mpu02_buck1234(3),
1082 regulator_desc_s2mpu02_buck1234(4),
1083 regulator_desc_s2mpu02_buck5(5),
1084 regulator_desc_s2mpu02_buck6(6),
1085 regulator_desc_s2mpu02_buck7(7),
1086 };
1087
1088 static int s2mps11_pmic_probe(struct platform_device *pdev)
1089 {
1090 struct sec_pmic_dev *iodev = dev_get_drvdata(pdev->dev.parent);
1091 struct sec_platform_data *pdata = NULL;
1092 struct of_regulator_match *rdata = NULL;
1093 struct regulator_config config = { };
1094 struct s2mps11_info *s2mps11;
1095 unsigned int rdev_num = 0;
1096 int i, ret = 0;
1097 const struct regulator_desc *regulators;
1098
1099 s2mps11 = devm_kzalloc(&pdev->dev, sizeof(struct s2mps11_info),
1100 GFP_KERNEL);
1101 if (!s2mps11)
1102 return -ENOMEM;
1103
1104 s2mps11->dev_type = platform_get_device_id(pdev)->driver_data;
1105 switch (s2mps11->dev_type) {
1106 case S2MPS11X:
1107 rdev_num = ARRAY_SIZE(s2mps11_regulators);
1108 regulators = s2mps11_regulators;
1109 BUILD_BUG_ON(S2MPS_REGULATOR_MAX < ARRAY_SIZE(s2mps11_regulators));
1110 break;
1111 case S2MPS13X:
1112 rdev_num = ARRAY_SIZE(s2mps13_regulators);
1113 regulators = s2mps13_regulators;
1114 BUILD_BUG_ON(S2MPS_REGULATOR_MAX < ARRAY_SIZE(s2mps13_regulators));
1115 break;
1116 case S2MPS14X:
1117 rdev_num = ARRAY_SIZE(s2mps14_regulators);
1118 regulators = s2mps14_regulators;
1119 BUILD_BUG_ON(S2MPS_REGULATOR_MAX < ARRAY_SIZE(s2mps14_regulators));
1120 break;
1121 case S2MPS15X:
1122 rdev_num = ARRAY_SIZE(s2mps15_regulators);
1123 regulators = s2mps15_regulators;
1124 BUILD_BUG_ON(S2MPS_REGULATOR_MAX < ARRAY_SIZE(s2mps15_regulators));
1125 break;
1126 case S2MPU02:
1127 rdev_num = ARRAY_SIZE(s2mpu02_regulators);
1128 regulators = s2mpu02_regulators;
1129 BUILD_BUG_ON(S2MPS_REGULATOR_MAX < ARRAY_SIZE(s2mpu02_regulators));
1130 break;
1131 default:
1132 dev_err(&pdev->dev, "Invalid device type: %u\n",
1133 s2mps11->dev_type);
1134 return -EINVAL;
1135 }
1136
1137 s2mps11->ext_control_gpiod = devm_kcalloc(&pdev->dev, rdev_num,
1138 sizeof(*s2mps11->ext_control_gpiod), GFP_KERNEL);
1139 if (!s2mps11->ext_control_gpiod)
1140 return -ENOMEM;
1141
1142 if (!iodev->dev->of_node) {
1143 if (iodev->pdata) {
1144 pdata = iodev->pdata;
1145 goto common_reg;
1146 } else {
1147 dev_err(pdev->dev.parent,
1148 "Platform data or DT node not supplied\n");
1149 return -ENODEV;
1150 }
1151 }
1152
1153 rdata = kcalloc(rdev_num, sizeof(*rdata), GFP_KERNEL);
1154 if (!rdata)
1155 return -ENOMEM;
1156
1157 for (i = 0; i < rdev_num; i++)
1158 rdata[i].name = regulators[i].name;
1159
1160 ret = s2mps11_pmic_dt_parse(pdev, rdata, s2mps11, rdev_num);
1161 if (ret)
1162 goto out;
1163
1164 common_reg:
1165 platform_set_drvdata(pdev, s2mps11);
1166
1167 config.dev = &pdev->dev;
1168 config.regmap = iodev->regmap_pmic;
1169 config.driver_data = s2mps11;
1170 for (i = 0; i < rdev_num; i++) {
1171 struct regulator_dev *regulator;
1172
1173 if (pdata) {
1174 config.init_data = pdata->regulators[i].initdata;
1175 config.of_node = pdata->regulators[i].reg_node;
1176 } else {
1177 config.init_data = rdata[i].init_data;
1178 config.of_node = rdata[i].of_node;
1179 }
1180 config.ena_gpiod = s2mps11->ext_control_gpiod[i];
1181 /*
1182 * Hand the GPIO descriptor management over to the regulator
1183 * core, remove it from devres management.
1184 */
1185 if (config.ena_gpiod)
1186 devm_gpiod_unhinge(&pdev->dev, config.ena_gpiod);
1187 regulator = devm_regulator_register(&pdev->dev,
1188 &regulators[i], &config);
1189 if (IS_ERR(regulator)) {
1190 ret = PTR_ERR(regulator);
1191 dev_err(&pdev->dev, "regulator init failed for %d\n",
1192 i);
1193 goto out;
1194 }
1195
1196 if (s2mps11->ext_control_gpiod[i]) {
1197 ret = s2mps14_pmic_enable_ext_control(s2mps11,
1198 regulator);
1199 if (ret < 0) {
1200 dev_err(&pdev->dev,
1201 "failed to enable GPIO control over %s: %d\n",
1202 regulator->desc->name, ret);
1203 goto out;
1204 }
1205 }
1206 }
1207
1208 out:
1209 kfree(rdata);
1210
1211 return ret;
1212 }
1213
1214 static const struct platform_device_id s2mps11_pmic_id[] = {
1215 { "s2mps11-regulator", S2MPS11X},
1216 { "s2mps13-regulator", S2MPS13X},
1217 { "s2mps14-regulator", S2MPS14X},
1218 { "s2mps15-regulator", S2MPS15X},
1219 { "s2mpu02-regulator", S2MPU02},
1220 { },
1221 };
1222 MODULE_DEVICE_TABLE(platform, s2mps11_pmic_id);
1223
1224 static struct platform_driver s2mps11_pmic_driver = {
1225 .driver = {
1226 .name = "s2mps11-pmic",
1227 },
1228 .probe = s2mps11_pmic_probe,
1229 .id_table = s2mps11_pmic_id,
1230 };
1231
1232 module_platform_driver(s2mps11_pmic_driver);
1233
1234 /* Module information */
1235 MODULE_AUTHOR("Sangbeom Kim <sbkim73@samsung.com>");
1236 MODULE_DESCRIPTION("SAMSUNG S2MPS11/S2MPS14/S2MPS15/S2MPU02 Regulator Driver");
1237 MODULE_LICENSE("GPL");
Linux with added FPC-III support