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 S2MPS11/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
get_ramp_delay(int ramp_delay)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
s2mps11_regulator_set_voltage_time_sel(struct regulator_dev * rdev,unsigned int old_selector,unsigned int new_selector)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 int rdev_id = rdev_get_id(rdev);
74 unsigned int ramp_delay = 0;
75 int old_volt, new_volt;
76
77 switch (rdev_id) {
78 case S2MPS11_BUCK2:
79 ramp_delay = s2mps11->ramp_delay2;
80 break;
81 case S2MPS11_BUCK3:
82 case S2MPS11_BUCK4:
83 ramp_delay = s2mps11->ramp_delay34;
84 break;
85 case S2MPS11_BUCK5:
86 ramp_delay = s2mps11->ramp_delay5;
87 break;
88 case S2MPS11_BUCK6:
89 case S2MPS11_BUCK1:
90 ramp_delay = s2mps11->ramp_delay16;
91 break;
92 case S2MPS11_BUCK7:
93 case S2MPS11_BUCK8:
94 case S2MPS11_BUCK10:
95 ramp_delay = s2mps11->ramp_delay7810;
96 break;
97 case S2MPS11_BUCK9:
98 ramp_delay = s2mps11->ramp_delay9;
99 }
100
101 if (ramp_delay == 0)
102 ramp_delay = rdev->desc->ramp_delay;
103
104 old_volt = rdev->desc->min_uV + (rdev->desc->uV_step * old_selector);
105 new_volt = rdev->desc->min_uV + (rdev->desc->uV_step * new_selector);
106
107 return DIV_ROUND_UP(abs(new_volt - old_volt), ramp_delay);
108 }
109
s2mps11_set_ramp_delay(struct regulator_dev * rdev,int ramp_delay)110 static int s2mps11_set_ramp_delay(struct regulator_dev *rdev, int ramp_delay)
111 {
112 struct s2mps11_info *s2mps11 = rdev_get_drvdata(rdev);
113 unsigned int ramp_val, ramp_shift, ramp_reg = S2MPS11_REG_RAMP_BUCK;
114 unsigned int ramp_enable = 1, enable_shift = 0;
115 int rdev_id = rdev_get_id(rdev);
116 int ret;
117
118 switch (rdev_id) {
119 case S2MPS11_BUCK1:
120 if (ramp_delay > s2mps11->ramp_delay16)
121 s2mps11->ramp_delay16 = ramp_delay;
122 else
123 ramp_delay = s2mps11->ramp_delay16;
124
125 ramp_shift = S2MPS11_BUCK16_RAMP_SHIFT;
126 break;
127 case S2MPS11_BUCK2:
128 enable_shift = S2MPS11_BUCK2_RAMP_EN_SHIFT;
129 if (!ramp_delay) {
130 ramp_enable = 0;
131 break;
132 }
133
134 s2mps11->ramp_delay2 = ramp_delay;
135 ramp_shift = S2MPS11_BUCK2_RAMP_SHIFT;
136 ramp_reg = S2MPS11_REG_RAMP;
137 break;
138 case S2MPS11_BUCK3:
139 enable_shift = S2MPS11_BUCK3_RAMP_EN_SHIFT;
140 if (!ramp_delay) {
141 ramp_enable = 0;
142 break;
143 }
144
145 if (ramp_delay > s2mps11->ramp_delay34)
146 s2mps11->ramp_delay34 = ramp_delay;
147 else
148 ramp_delay = s2mps11->ramp_delay34;
149
150 ramp_shift = S2MPS11_BUCK34_RAMP_SHIFT;
151 ramp_reg = S2MPS11_REG_RAMP;
152 break;
153 case S2MPS11_BUCK4:
154 enable_shift = S2MPS11_BUCK4_RAMP_EN_SHIFT;
155 if (!ramp_delay) {
156 ramp_enable = 0;
157 break;
158 }
159
160 if (ramp_delay > s2mps11->ramp_delay34)
161 s2mps11->ramp_delay34 = ramp_delay;
162 else
163 ramp_delay = s2mps11->ramp_delay34;
164
165 ramp_shift = S2MPS11_BUCK34_RAMP_SHIFT;
166 ramp_reg = S2MPS11_REG_RAMP;
167 break;
168 case S2MPS11_BUCK5:
169 s2mps11->ramp_delay5 = ramp_delay;
170 ramp_shift = S2MPS11_BUCK5_RAMP_SHIFT;
171 break;
172 case S2MPS11_BUCK6:
173 enable_shift = S2MPS11_BUCK6_RAMP_EN_SHIFT;
174 if (!ramp_delay) {
175 ramp_enable = 0;
176 break;
177 }
178
179 if (ramp_delay > s2mps11->ramp_delay16)
180 s2mps11->ramp_delay16 = ramp_delay;
181 else
182 ramp_delay = s2mps11->ramp_delay16;
183
184 ramp_shift = S2MPS11_BUCK16_RAMP_SHIFT;
185 break;
186 case S2MPS11_BUCK7:
187 case S2MPS11_BUCK8:
188 case S2MPS11_BUCK10:
189 if (ramp_delay > s2mps11->ramp_delay7810)
190 s2mps11->ramp_delay7810 = ramp_delay;
191 else
192 ramp_delay = s2mps11->ramp_delay7810;
193
194 ramp_shift = S2MPS11_BUCK7810_RAMP_SHIFT;
195 break;
196 case S2MPS11_BUCK9:
197 s2mps11->ramp_delay9 = ramp_delay;
198 ramp_shift = S2MPS11_BUCK9_RAMP_SHIFT;
199 break;
200 default:
201 return 0;
202 }
203
204 if (!ramp_enable)
205 goto ramp_disable;
206
207 /* Ramp delay can be enabled/disabled only for buck[2346] */
208 if ((rdev_id >= S2MPS11_BUCK2 && rdev_id <= S2MPS11_BUCK4) ||
209 rdev_id == S2MPS11_BUCK6) {
210 ret = regmap_update_bits(rdev->regmap, S2MPS11_REG_RAMP,
211 1 << enable_shift, 1 << enable_shift);
212 if (ret) {
213 dev_err(&rdev->dev, "failed to enable ramp rate\n");
214 return ret;
215 }
216 }
217
218 ramp_val = get_ramp_delay(ramp_delay);
219
220 return regmap_update_bits(rdev->regmap, ramp_reg, 0x3 << ramp_shift,
221 ramp_val << ramp_shift);
222
223 ramp_disable:
224 return regmap_update_bits(rdev->regmap, S2MPS11_REG_RAMP,
225 1 << enable_shift, 0);
226 }
227
s2mps11_regulator_enable(struct regulator_dev * rdev)228 static int s2mps11_regulator_enable(struct regulator_dev *rdev)
229 {
230 struct s2mps11_info *s2mps11 = rdev_get_drvdata(rdev);
231 int rdev_id = rdev_get_id(rdev);
232 unsigned int val;
233
234 switch (s2mps11->dev_type) {
235 case S2MPS11X:
236 if (test_bit(rdev_id, s2mps11->suspend_state))
237 val = S2MPS14_ENABLE_SUSPEND;
238 else
239 val = rdev->desc->enable_mask;
240 break;
241 case S2MPS13X:
242 case S2MPS14X:
243 if (test_bit(rdev_id, s2mps11->suspend_state))
244 val = S2MPS14_ENABLE_SUSPEND;
245 else if (s2mps11->ext_control_gpiod[rdev_id])
246 val = S2MPS14_ENABLE_EXT_CONTROL;
247 else
248 val = rdev->desc->enable_mask;
249 break;
250 case S2MPU02:
251 if (test_bit(rdev_id, s2mps11->suspend_state))
252 val = S2MPU02_ENABLE_SUSPEND;
253 else
254 val = rdev->desc->enable_mask;
255 break;
256 default:
257 return -EINVAL;
258 }
259
260 return regmap_update_bits(rdev->regmap, rdev->desc->enable_reg,
261 rdev->desc->enable_mask, val);
262 }
263
s2mps11_regulator_set_suspend_disable(struct regulator_dev * rdev)264 static int s2mps11_regulator_set_suspend_disable(struct regulator_dev *rdev)
265 {
266 int ret;
267 unsigned int val, state;
268 struct s2mps11_info *s2mps11 = rdev_get_drvdata(rdev);
269 int rdev_id = rdev_get_id(rdev);
270
271 /* Below LDO should be always on or does not support suspend mode. */
272 switch (s2mps11->dev_type) {
273 case S2MPS11X:
274 switch (rdev_id) {
275 case S2MPS11_LDO2:
276 case S2MPS11_LDO36:
277 case S2MPS11_LDO37:
278 case S2MPS11_LDO38:
279 return 0;
280 default:
281 state = S2MPS14_ENABLE_SUSPEND;
282 break;
283 }
284 break;
285 case S2MPS13X:
286 case S2MPS14X:
287 switch (rdev_id) {
288 case S2MPS14_LDO3:
289 return 0;
290 default:
291 state = S2MPS14_ENABLE_SUSPEND;
292 break;
293 }
294 break;
295 case S2MPU02:
296 switch (rdev_id) {
297 case S2MPU02_LDO13:
298 case S2MPU02_LDO14:
299 case S2MPU02_LDO15:
300 case S2MPU02_LDO17:
301 case S2MPU02_BUCK7:
302 state = S2MPU02_DISABLE_SUSPEND;
303 break;
304 default:
305 state = S2MPU02_ENABLE_SUSPEND;
306 break;
307 }
308 break;
309 default:
310 return -EINVAL;
311 }
312
313 ret = regmap_read(rdev->regmap, rdev->desc->enable_reg, &val);
314 if (ret < 0)
315 return ret;
316
317 set_bit(rdev_id, s2mps11->suspend_state);
318 /*
319 * Don't enable suspend mode if regulator is already disabled because
320 * this would effectively for a short time turn on the regulator after
321 * resuming.
322 * However we still want to toggle the suspend_state bit for regulator
323 * in case if it got enabled before suspending the system.
324 */
325 if (!(val & rdev->desc->enable_mask))
326 return 0;
327
328 return regmap_update_bits(rdev->regmap, rdev->desc->enable_reg,
329 rdev->desc->enable_mask, state);
330 }
331
332 static const struct regulator_ops s2mps11_ldo_ops = {
333 .list_voltage = regulator_list_voltage_linear,
334 .map_voltage = regulator_map_voltage_linear,
335 .is_enabled = regulator_is_enabled_regmap,
336 .enable = s2mps11_regulator_enable,
337 .disable = regulator_disable_regmap,
338 .get_voltage_sel = regulator_get_voltage_sel_regmap,
339 .set_voltage_sel = regulator_set_voltage_sel_regmap,
340 .set_voltage_time_sel = regulator_set_voltage_time_sel,
341 .set_suspend_disable = s2mps11_regulator_set_suspend_disable,
342 };
343
344 static const struct regulator_ops s2mps11_buck_ops = {
345 .list_voltage = regulator_list_voltage_linear,
346 .map_voltage = regulator_map_voltage_linear,
347 .is_enabled = regulator_is_enabled_regmap,
348 .enable = s2mps11_regulator_enable,
349 .disable = regulator_disable_regmap,
350 .get_voltage_sel = regulator_get_voltage_sel_regmap,
351 .set_voltage_sel = regulator_set_voltage_sel_regmap,
352 .set_voltage_time_sel = s2mps11_regulator_set_voltage_time_sel,
353 .set_ramp_delay = s2mps11_set_ramp_delay,
354 .set_suspend_disable = s2mps11_regulator_set_suspend_disable,
355 };
356
357 #define regulator_desc_s2mps11_ldo(num, step) { \
358 .name = "LDO"#num, \
359 .id = S2MPS11_LDO##num, \
360 .ops = &s2mps11_ldo_ops, \
361 .type = REGULATOR_VOLTAGE, \
362 .owner = THIS_MODULE, \
363 .ramp_delay = RAMP_DELAY_12_MVUS, \
364 .min_uV = MIN_800_MV, \
365 .uV_step = step, \
366 .n_voltages = S2MPS11_LDO_N_VOLTAGES, \
367 .vsel_reg = S2MPS11_REG_L1CTRL + num - 1, \
368 .vsel_mask = S2MPS11_LDO_VSEL_MASK, \
369 .enable_reg = S2MPS11_REG_L1CTRL + num - 1, \
370 .enable_mask = S2MPS11_ENABLE_MASK \
371 }
372
373 #define regulator_desc_s2mps11_buck1_4(num) { \
374 .name = "BUCK"#num, \
375 .id = S2MPS11_BUCK##num, \
376 .ops = &s2mps11_buck_ops, \
377 .type = REGULATOR_VOLTAGE, \
378 .owner = THIS_MODULE, \
379 .min_uV = MIN_650_MV, \
380 .uV_step = STEP_6_25_MV, \
381 .linear_min_sel = 8, \
382 .n_voltages = S2MPS11_BUCK12346_N_VOLTAGES, \
383 .ramp_delay = S2MPS11_RAMP_DELAY, \
384 .vsel_reg = S2MPS11_REG_B1CTRL2 + (num - 1) * 2, \
385 .vsel_mask = S2MPS11_BUCK_VSEL_MASK, \
386 .enable_reg = S2MPS11_REG_B1CTRL1 + (num - 1) * 2, \
387 .enable_mask = S2MPS11_ENABLE_MASK \
388 }
389
390 #define regulator_desc_s2mps11_buck5 { \
391 .name = "BUCK5", \
392 .id = S2MPS11_BUCK5, \
393 .ops = &s2mps11_buck_ops, \
394 .type = REGULATOR_VOLTAGE, \
395 .owner = THIS_MODULE, \
396 .min_uV = MIN_650_MV, \
397 .uV_step = STEP_6_25_MV, \
398 .linear_min_sel = 8, \
399 .n_voltages = S2MPS11_BUCK5_N_VOLTAGES, \
400 .ramp_delay = S2MPS11_RAMP_DELAY, \
401 .vsel_reg = S2MPS11_REG_B5CTRL2, \
402 .vsel_mask = S2MPS11_BUCK_VSEL_MASK, \
403 .enable_reg = S2MPS11_REG_B5CTRL1, \
404 .enable_mask = S2MPS11_ENABLE_MASK \
405 }
406
407 #define regulator_desc_s2mps11_buck67810(num, min, step, min_sel, voltages) { \
408 .name = "BUCK"#num, \
409 .id = S2MPS11_BUCK##num, \
410 .ops = &s2mps11_buck_ops, \
411 .type = REGULATOR_VOLTAGE, \
412 .owner = THIS_MODULE, \
413 .min_uV = min, \
414 .uV_step = step, \
415 .linear_min_sel = min_sel, \
416 .n_voltages = voltages, \
417 .ramp_delay = S2MPS11_RAMP_DELAY, \
418 .vsel_reg = S2MPS11_REG_B6CTRL2 + (num - 6) * 2, \
419 .vsel_mask = S2MPS11_BUCK_VSEL_MASK, \
420 .enable_reg = S2MPS11_REG_B6CTRL1 + (num - 6) * 2, \
421 .enable_mask = S2MPS11_ENABLE_MASK \
422 }
423
424 #define regulator_desc_s2mps11_buck9 { \
425 .name = "BUCK9", \
426 .id = S2MPS11_BUCK9, \
427 .ops = &s2mps11_buck_ops, \
428 .type = REGULATOR_VOLTAGE, \
429 .owner = THIS_MODULE, \
430 .min_uV = MIN_3000_MV, \
431 .uV_step = STEP_25_MV, \
432 .n_voltages = S2MPS11_BUCK9_N_VOLTAGES, \
433 .ramp_delay = S2MPS11_RAMP_DELAY, \
434 .vsel_reg = S2MPS11_REG_B9CTRL2, \
435 .vsel_mask = S2MPS11_BUCK9_VSEL_MASK, \
436 .enable_reg = S2MPS11_REG_B9CTRL1, \
437 .enable_mask = S2MPS11_ENABLE_MASK \
438 }
439
440 static const struct regulator_desc s2mps11_regulators[] = {
441 regulator_desc_s2mps11_ldo(1, STEP_25_MV),
442 regulator_desc_s2mps11_ldo(2, STEP_50_MV),
443 regulator_desc_s2mps11_ldo(3, STEP_50_MV),
444 regulator_desc_s2mps11_ldo(4, STEP_50_MV),
445 regulator_desc_s2mps11_ldo(5, STEP_50_MV),
446 regulator_desc_s2mps11_ldo(6, STEP_25_MV),
447 regulator_desc_s2mps11_ldo(7, STEP_50_MV),
448 regulator_desc_s2mps11_ldo(8, STEP_50_MV),
449 regulator_desc_s2mps11_ldo(9, STEP_50_MV),
450 regulator_desc_s2mps11_ldo(10, STEP_50_MV),
451 regulator_desc_s2mps11_ldo(11, STEP_25_MV),
452 regulator_desc_s2mps11_ldo(12, STEP_50_MV),
453 regulator_desc_s2mps11_ldo(13, STEP_50_MV),
454 regulator_desc_s2mps11_ldo(14, STEP_50_MV),
455 regulator_desc_s2mps11_ldo(15, STEP_50_MV),
456 regulator_desc_s2mps11_ldo(16, STEP_50_MV),
457 regulator_desc_s2mps11_ldo(17, STEP_50_MV),
458 regulator_desc_s2mps11_ldo(18, STEP_50_MV),
459 regulator_desc_s2mps11_ldo(19, STEP_50_MV),
460 regulator_desc_s2mps11_ldo(20, STEP_50_MV),
461 regulator_desc_s2mps11_ldo(21, STEP_50_MV),
462 regulator_desc_s2mps11_ldo(22, STEP_25_MV),
463 regulator_desc_s2mps11_ldo(23, STEP_25_MV),
464 regulator_desc_s2mps11_ldo(24, STEP_50_MV),
465 regulator_desc_s2mps11_ldo(25, STEP_50_MV),
466 regulator_desc_s2mps11_ldo(26, STEP_50_MV),
467 regulator_desc_s2mps11_ldo(27, STEP_25_MV),
468 regulator_desc_s2mps11_ldo(28, STEP_50_MV),
469 regulator_desc_s2mps11_ldo(29, STEP_50_MV),
470 regulator_desc_s2mps11_ldo(30, STEP_50_MV),
471 regulator_desc_s2mps11_ldo(31, STEP_50_MV),
472 regulator_desc_s2mps11_ldo(32, STEP_50_MV),
473 regulator_desc_s2mps11_ldo(33, STEP_50_MV),
474 regulator_desc_s2mps11_ldo(34, STEP_50_MV),
475 regulator_desc_s2mps11_ldo(35, STEP_25_MV),
476 regulator_desc_s2mps11_ldo(36, STEP_50_MV),
477 regulator_desc_s2mps11_ldo(37, STEP_50_MV),
478 regulator_desc_s2mps11_ldo(38, STEP_50_MV),
479 regulator_desc_s2mps11_buck1_4(1),
480 regulator_desc_s2mps11_buck1_4(2),
481 regulator_desc_s2mps11_buck1_4(3),
482 regulator_desc_s2mps11_buck1_4(4),
483 regulator_desc_s2mps11_buck5,
484 regulator_desc_s2mps11_buck67810(6, MIN_650_MV, STEP_6_25_MV, 8,
485 S2MPS11_BUCK12346_N_VOLTAGES),
486 regulator_desc_s2mps11_buck67810(7, MIN_750_MV, STEP_12_5_MV, 0,
487 S2MPS11_BUCK7810_N_VOLTAGES),
488 regulator_desc_s2mps11_buck67810(8, MIN_750_MV, STEP_12_5_MV, 0,
489 S2MPS11_BUCK7810_N_VOLTAGES),
490 regulator_desc_s2mps11_buck9,
491 regulator_desc_s2mps11_buck67810(10, MIN_750_MV, STEP_12_5_MV, 0,
492 S2MPS11_BUCK7810_N_VOLTAGES),
493 };
494
495 static const struct regulator_ops s2mps14_reg_ops;
496
497 #define regulator_desc_s2mps13_ldo(num, min, step, min_sel) { \
498 .name = "LDO"#num, \
499 .id = S2MPS13_LDO##num, \
500 .ops = &s2mps14_reg_ops, \
501 .type = REGULATOR_VOLTAGE, \
502 .owner = THIS_MODULE, \
503 .min_uV = min, \
504 .uV_step = step, \
505 .linear_min_sel = min_sel, \
506 .n_voltages = S2MPS14_LDO_N_VOLTAGES, \
507 .vsel_reg = S2MPS13_REG_L1CTRL + num - 1, \
508 .vsel_mask = S2MPS14_LDO_VSEL_MASK, \
509 .enable_reg = S2MPS13_REG_L1CTRL + num - 1, \
510 .enable_mask = S2MPS14_ENABLE_MASK \
511 }
512
513 #define regulator_desc_s2mps13_buck(num, min, step, min_sel) { \
514 .name = "BUCK"#num, \
515 .id = S2MPS13_BUCK##num, \
516 .ops = &s2mps14_reg_ops, \
517 .type = REGULATOR_VOLTAGE, \
518 .owner = THIS_MODULE, \
519 .min_uV = min, \
520 .uV_step = step, \
521 .linear_min_sel = min_sel, \
522 .n_voltages = S2MPS14_BUCK_N_VOLTAGES, \
523 .ramp_delay = S2MPS13_BUCK_RAMP_DELAY, \
524 .vsel_reg = S2MPS13_REG_B1OUT + (num - 1) * 2, \
525 .vsel_mask = S2MPS14_BUCK_VSEL_MASK, \
526 .enable_reg = S2MPS13_REG_B1CTRL + (num - 1) * 2, \
527 .enable_mask = S2MPS14_ENABLE_MASK \
528 }
529
530 #define regulator_desc_s2mps13_buck7(num, min, step, min_sel) { \
531 .name = "BUCK"#num, \
532 .id = S2MPS13_BUCK##num, \
533 .ops = &s2mps14_reg_ops, \
534 .type = REGULATOR_VOLTAGE, \
535 .owner = THIS_MODULE, \
536 .min_uV = min, \
537 .uV_step = step, \
538 .linear_min_sel = min_sel, \
539 .n_voltages = S2MPS14_BUCK_N_VOLTAGES, \
540 .ramp_delay = S2MPS13_BUCK_RAMP_DELAY, \
541 .vsel_reg = S2MPS13_REG_B1OUT + (num) * 2 - 1, \
542 .vsel_mask = S2MPS14_BUCK_VSEL_MASK, \
543 .enable_reg = S2MPS13_REG_B1CTRL + (num - 1) * 2, \
544 .enable_mask = S2MPS14_ENABLE_MASK \
545 }
546
547 #define regulator_desc_s2mps13_buck8_10(num, min, step, min_sel) { \
548 .name = "BUCK"#num, \
549 .id = S2MPS13_BUCK##num, \
550 .ops = &s2mps14_reg_ops, \
551 .type = REGULATOR_VOLTAGE, \
552 .owner = THIS_MODULE, \
553 .min_uV = min, \
554 .uV_step = step, \
555 .linear_min_sel = min_sel, \
556 .n_voltages = S2MPS14_BUCK_N_VOLTAGES, \
557 .ramp_delay = S2MPS13_BUCK_RAMP_DELAY, \
558 .vsel_reg = S2MPS13_REG_B1OUT + (num) * 2 - 1, \
559 .vsel_mask = S2MPS14_BUCK_VSEL_MASK, \
560 .enable_reg = S2MPS13_REG_B1CTRL + (num) * 2 - 1, \
561 .enable_mask = S2MPS14_ENABLE_MASK \
562 }
563
564 static const struct regulator_desc s2mps13_regulators[] = {
565 regulator_desc_s2mps13_ldo(1, MIN_800_MV, STEP_12_5_MV, 0x00),
566 regulator_desc_s2mps13_ldo(2, MIN_1400_MV, STEP_50_MV, 0x0C),
567 regulator_desc_s2mps13_ldo(3, MIN_1000_MV, STEP_25_MV, 0x08),
568 regulator_desc_s2mps13_ldo(4, MIN_800_MV, STEP_12_5_MV, 0x00),
569 regulator_desc_s2mps13_ldo(5, MIN_800_MV, STEP_12_5_MV, 0x00),
570 regulator_desc_s2mps13_ldo(6, MIN_800_MV, STEP_12_5_MV, 0x00),
571 regulator_desc_s2mps13_ldo(7, MIN_1000_MV, STEP_25_MV, 0x08),
572 regulator_desc_s2mps13_ldo(8, MIN_1000_MV, STEP_25_MV, 0x08),
573 regulator_desc_s2mps13_ldo(9, MIN_1000_MV, STEP_25_MV, 0x08),
574 regulator_desc_s2mps13_ldo(10, MIN_1400_MV, STEP_50_MV, 0x0C),
575 regulator_desc_s2mps13_ldo(11, MIN_800_MV, STEP_25_MV, 0x10),
576 regulator_desc_s2mps13_ldo(12, MIN_800_MV, STEP_25_MV, 0x10),
577 regulator_desc_s2mps13_ldo(13, MIN_800_MV, STEP_25_MV, 0x10),
578 regulator_desc_s2mps13_ldo(14, MIN_800_MV, STEP_12_5_MV, 0x00),
579 regulator_desc_s2mps13_ldo(15, MIN_800_MV, STEP_12_5_MV, 0x00),
580 regulator_desc_s2mps13_ldo(16, MIN_1400_MV, STEP_50_MV, 0x0C),
581 regulator_desc_s2mps13_ldo(17, MIN_1400_MV, STEP_50_MV, 0x0C),
582 regulator_desc_s2mps13_ldo(18, MIN_1000_MV, STEP_25_MV, 0x08),
583 regulator_desc_s2mps13_ldo(19, MIN_1000_MV, STEP_25_MV, 0x08),
584 regulator_desc_s2mps13_ldo(20, MIN_1400_MV, STEP_50_MV, 0x0C),
585 regulator_desc_s2mps13_ldo(21, MIN_1000_MV, STEP_25_MV, 0x08),
586 regulator_desc_s2mps13_ldo(22, MIN_1000_MV, STEP_25_MV, 0x08),
587 regulator_desc_s2mps13_ldo(23, MIN_800_MV, STEP_12_5_MV, 0x00),
588 regulator_desc_s2mps13_ldo(24, MIN_800_MV, STEP_12_5_MV, 0x00),
589 regulator_desc_s2mps13_ldo(25, MIN_1400_MV, STEP_50_MV, 0x0C),
590 regulator_desc_s2mps13_ldo(26, MIN_1400_MV, STEP_50_MV, 0x0C),
591 regulator_desc_s2mps13_ldo(27, MIN_1400_MV, STEP_50_MV, 0x0C),
592 regulator_desc_s2mps13_ldo(28, MIN_1000_MV, STEP_25_MV, 0x08),
593 regulator_desc_s2mps13_ldo(29, MIN_1400_MV, STEP_50_MV, 0x0C),
594 regulator_desc_s2mps13_ldo(30, MIN_1400_MV, STEP_50_MV, 0x0C),
595 regulator_desc_s2mps13_ldo(31, MIN_1000_MV, STEP_25_MV, 0x08),
596 regulator_desc_s2mps13_ldo(32, MIN_1000_MV, STEP_25_MV, 0x08),
597 regulator_desc_s2mps13_ldo(33, MIN_1400_MV, STEP_50_MV, 0x0C),
598 regulator_desc_s2mps13_ldo(34, MIN_1000_MV, STEP_25_MV, 0x08),
599 regulator_desc_s2mps13_ldo(35, MIN_1400_MV, STEP_50_MV, 0x0C),
600 regulator_desc_s2mps13_ldo(36, MIN_800_MV, STEP_12_5_MV, 0x00),
601 regulator_desc_s2mps13_ldo(37, MIN_1000_MV, STEP_25_MV, 0x08),
602 regulator_desc_s2mps13_ldo(38, MIN_1400_MV, STEP_50_MV, 0x0C),
603 regulator_desc_s2mps13_ldo(39, MIN_1000_MV, STEP_25_MV, 0x08),
604 regulator_desc_s2mps13_ldo(40, MIN_1400_MV, STEP_50_MV, 0x0C),
605 regulator_desc_s2mps13_buck(1, MIN_500_MV, STEP_6_25_MV, 0x10),
606 regulator_desc_s2mps13_buck(2, MIN_500_MV, STEP_6_25_MV, 0x10),
607 regulator_desc_s2mps13_buck(3, MIN_500_MV, STEP_6_25_MV, 0x10),
608 regulator_desc_s2mps13_buck(4, MIN_500_MV, STEP_6_25_MV, 0x10),
609 regulator_desc_s2mps13_buck(5, MIN_500_MV, STEP_6_25_MV, 0x10),
610 regulator_desc_s2mps13_buck(6, MIN_500_MV, STEP_6_25_MV, 0x10),
611 regulator_desc_s2mps13_buck7(7, MIN_500_MV, STEP_6_25_MV, 0x10),
612 regulator_desc_s2mps13_buck8_10(8, MIN_1000_MV, STEP_12_5_MV, 0x20),
613 regulator_desc_s2mps13_buck8_10(9, MIN_1000_MV, STEP_12_5_MV, 0x20),
614 regulator_desc_s2mps13_buck8_10(10, MIN_500_MV, STEP_6_25_MV, 0x10),
615 };
616
617 static const struct regulator_ops s2mps14_reg_ops = {
618 .list_voltage = regulator_list_voltage_linear,
619 .map_voltage = regulator_map_voltage_linear,
620 .is_enabled = regulator_is_enabled_regmap,
621 .enable = s2mps11_regulator_enable,
622 .disable = regulator_disable_regmap,
623 .get_voltage_sel = regulator_get_voltage_sel_regmap,
624 .set_voltage_sel = regulator_set_voltage_sel_regmap,
625 .set_voltage_time_sel = regulator_set_voltage_time_sel,
626 .set_suspend_disable = s2mps11_regulator_set_suspend_disable,
627 };
628
629 #define regulator_desc_s2mps14_ldo(num, min, step) { \
630 .name = "LDO"#num, \
631 .id = S2MPS14_LDO##num, \
632 .ops = &s2mps14_reg_ops, \
633 .type = REGULATOR_VOLTAGE, \
634 .owner = THIS_MODULE, \
635 .min_uV = min, \
636 .uV_step = step, \
637 .n_voltages = S2MPS14_LDO_N_VOLTAGES, \
638 .vsel_reg = S2MPS14_REG_L1CTRL + num - 1, \
639 .vsel_mask = S2MPS14_LDO_VSEL_MASK, \
640 .enable_reg = S2MPS14_REG_L1CTRL + num - 1, \
641 .enable_mask = S2MPS14_ENABLE_MASK \
642 }
643
644 #define regulator_desc_s2mps14_buck(num, min, step, min_sel) { \
645 .name = "BUCK"#num, \
646 .id = S2MPS14_BUCK##num, \
647 .ops = &s2mps14_reg_ops, \
648 .type = REGULATOR_VOLTAGE, \
649 .owner = THIS_MODULE, \
650 .min_uV = min, \
651 .uV_step = step, \
652 .n_voltages = S2MPS14_BUCK_N_VOLTAGES, \
653 .linear_min_sel = min_sel, \
654 .ramp_delay = S2MPS14_BUCK_RAMP_DELAY, \
655 .vsel_reg = S2MPS14_REG_B1CTRL2 + (num - 1) * 2, \
656 .vsel_mask = S2MPS14_BUCK_VSEL_MASK, \
657 .enable_reg = S2MPS14_REG_B1CTRL1 + (num - 1) * 2, \
658 .enable_mask = S2MPS14_ENABLE_MASK \
659 }
660
661 static const struct regulator_desc s2mps14_regulators[] = {
662 regulator_desc_s2mps14_ldo(1, MIN_800_MV, STEP_12_5_MV),
663 regulator_desc_s2mps14_ldo(2, MIN_800_MV, STEP_12_5_MV),
664 regulator_desc_s2mps14_ldo(3, MIN_800_MV, STEP_25_MV),
665 regulator_desc_s2mps14_ldo(4, MIN_800_MV, STEP_25_MV),
666 regulator_desc_s2mps14_ldo(5, MIN_800_MV, STEP_12_5_MV),
667 regulator_desc_s2mps14_ldo(6, MIN_800_MV, STEP_12_5_MV),
668 regulator_desc_s2mps14_ldo(7, MIN_800_MV, STEP_25_MV),
669 regulator_desc_s2mps14_ldo(8, MIN_1800_MV, STEP_25_MV),
670 regulator_desc_s2mps14_ldo(9, MIN_800_MV, STEP_12_5_MV),
671 regulator_desc_s2mps14_ldo(10, MIN_800_MV, STEP_12_5_MV),
672 regulator_desc_s2mps14_ldo(11, MIN_800_MV, STEP_25_MV),
673 regulator_desc_s2mps14_ldo(12, MIN_1800_MV, STEP_25_MV),
674 regulator_desc_s2mps14_ldo(13, MIN_1800_MV, STEP_25_MV),
675 regulator_desc_s2mps14_ldo(14, MIN_1800_MV, STEP_25_MV),
676 regulator_desc_s2mps14_ldo(15, MIN_1800_MV, STEP_25_MV),
677 regulator_desc_s2mps14_ldo(16, MIN_1800_MV, STEP_25_MV),
678 regulator_desc_s2mps14_ldo(17, MIN_1800_MV, STEP_25_MV),
679 regulator_desc_s2mps14_ldo(18, MIN_1800_MV, STEP_25_MV),
680 regulator_desc_s2mps14_ldo(19, MIN_800_MV, STEP_25_MV),
681 regulator_desc_s2mps14_ldo(20, MIN_800_MV, STEP_25_MV),
682 regulator_desc_s2mps14_ldo(21, MIN_800_MV, STEP_25_MV),
683 regulator_desc_s2mps14_ldo(22, MIN_800_MV, STEP_12_5_MV),
684 regulator_desc_s2mps14_ldo(23, MIN_800_MV, STEP_25_MV),
685 regulator_desc_s2mps14_ldo(24, MIN_1800_MV, STEP_25_MV),
686 regulator_desc_s2mps14_ldo(25, MIN_1800_MV, STEP_25_MV),
687 regulator_desc_s2mps14_buck(1, MIN_600_MV, STEP_6_25_MV,
688 S2MPS14_BUCK1235_START_SEL),
689 regulator_desc_s2mps14_buck(2, MIN_600_MV, STEP_6_25_MV,
690 S2MPS14_BUCK1235_START_SEL),
691 regulator_desc_s2mps14_buck(3, MIN_600_MV, STEP_6_25_MV,
692 S2MPS14_BUCK1235_START_SEL),
693 regulator_desc_s2mps14_buck(4, MIN_1400_MV, STEP_12_5_MV,
694 S2MPS14_BUCK4_START_SEL),
695 regulator_desc_s2mps14_buck(5, MIN_600_MV, STEP_6_25_MV,
696 S2MPS14_BUCK1235_START_SEL),
697 };
698
699 static const struct regulator_ops s2mps15_reg_ldo_ops = {
700 .list_voltage = regulator_list_voltage_linear_range,
701 .map_voltage = regulator_map_voltage_linear_range,
702 .is_enabled = regulator_is_enabled_regmap,
703 .enable = regulator_enable_regmap,
704 .disable = regulator_disable_regmap,
705 .get_voltage_sel = regulator_get_voltage_sel_regmap,
706 .set_voltage_sel = regulator_set_voltage_sel_regmap,
707 };
708
709 static const struct regulator_ops s2mps15_reg_buck_ops = {
710 .list_voltage = regulator_list_voltage_linear_range,
711 .map_voltage = regulator_map_voltage_linear_range,
712 .is_enabled = regulator_is_enabled_regmap,
713 .enable = regulator_enable_regmap,
714 .disable = regulator_disable_regmap,
715 .get_voltage_sel = regulator_get_voltage_sel_regmap,
716 .set_voltage_sel = regulator_set_voltage_sel_regmap,
717 .set_voltage_time_sel = regulator_set_voltage_time_sel,
718 };
719
720 #define regulator_desc_s2mps15_ldo(num, range) { \
721 .name = "LDO"#num, \
722 .id = S2MPS15_LDO##num, \
723 .ops = &s2mps15_reg_ldo_ops, \
724 .type = REGULATOR_VOLTAGE, \
725 .owner = THIS_MODULE, \
726 .linear_ranges = range, \
727 .n_linear_ranges = ARRAY_SIZE(range), \
728 .n_voltages = S2MPS15_LDO_N_VOLTAGES, \
729 .vsel_reg = S2MPS15_REG_L1CTRL + num - 1, \
730 .vsel_mask = S2MPS15_LDO_VSEL_MASK, \
731 .enable_reg = S2MPS15_REG_L1CTRL + num - 1, \
732 .enable_mask = S2MPS15_ENABLE_MASK \
733 }
734
735 #define regulator_desc_s2mps15_buck(num, range) { \
736 .name = "BUCK"#num, \
737 .id = S2MPS15_BUCK##num, \
738 .ops = &s2mps15_reg_buck_ops, \
739 .type = REGULATOR_VOLTAGE, \
740 .owner = THIS_MODULE, \
741 .linear_ranges = range, \
742 .n_linear_ranges = ARRAY_SIZE(range), \
743 .ramp_delay = 12500, \
744 .n_voltages = S2MPS15_BUCK_N_VOLTAGES, \
745 .vsel_reg = S2MPS15_REG_B1CTRL2 + ((num - 1) * 2), \
746 .vsel_mask = S2MPS15_BUCK_VSEL_MASK, \
747 .enable_reg = S2MPS15_REG_B1CTRL1 + ((num - 1) * 2), \
748 .enable_mask = S2MPS15_ENABLE_MASK \
749 }
750
751 /* voltage range for s2mps15 LDO 3, 5, 15, 16, 18, 20, 23 and 27 */
752 static const struct linear_range s2mps15_ldo_voltage_ranges1[] = {
753 REGULATOR_LINEAR_RANGE(1000000, 0xc, 0x38, 25000),
754 };
755
756 /* voltage range for s2mps15 LDO 2, 6, 14, 17, 19, 21, 24 and 25 */
757 static const struct linear_range s2mps15_ldo_voltage_ranges2[] = {
758 REGULATOR_LINEAR_RANGE(1800000, 0x0, 0x3f, 25000),
759 };
760
761 /* voltage range for s2mps15 LDO 4, 11, 12, 13, 22 and 26 */
762 static const struct linear_range s2mps15_ldo_voltage_ranges3[] = {
763 REGULATOR_LINEAR_RANGE(700000, 0x0, 0x34, 12500),
764 };
765
766 /* voltage range for s2mps15 LDO 7, 8, 9 and 10 */
767 static const struct linear_range s2mps15_ldo_voltage_ranges4[] = {
768 REGULATOR_LINEAR_RANGE(700000, 0x10, 0x20, 25000),
769 };
770
771 /* voltage range for s2mps15 LDO 1 */
772 static const struct linear_range s2mps15_ldo_voltage_ranges5[] = {
773 REGULATOR_LINEAR_RANGE(500000, 0x0, 0x20, 12500),
774 };
775
776 /* voltage range for s2mps15 BUCK 1, 2, 3, 4, 5, 6 and 7 */
777 static const struct linear_range s2mps15_buck_voltage_ranges1[] = {
778 REGULATOR_LINEAR_RANGE(500000, 0x20, 0xc0, 6250),
779 };
780
781 /* voltage range for s2mps15 BUCK 8, 9 and 10 */
782 static const struct linear_range s2mps15_buck_voltage_ranges2[] = {
783 REGULATOR_LINEAR_RANGE(1000000, 0x20, 0x78, 12500),
784 };
785
786 static const struct regulator_desc s2mps15_regulators[] = {
787 regulator_desc_s2mps15_ldo(1, s2mps15_ldo_voltage_ranges5),
788 regulator_desc_s2mps15_ldo(2, s2mps15_ldo_voltage_ranges2),
789 regulator_desc_s2mps15_ldo(3, s2mps15_ldo_voltage_ranges1),
790 regulator_desc_s2mps15_ldo(4, s2mps15_ldo_voltage_ranges3),
791 regulator_desc_s2mps15_ldo(5, s2mps15_ldo_voltage_ranges1),
792 regulator_desc_s2mps15_ldo(6, s2mps15_ldo_voltage_ranges2),
793 regulator_desc_s2mps15_ldo(7, s2mps15_ldo_voltage_ranges4),
794 regulator_desc_s2mps15_ldo(8, s2mps15_ldo_voltage_ranges4),
795 regulator_desc_s2mps15_ldo(9, s2mps15_ldo_voltage_ranges4),
796 regulator_desc_s2mps15_ldo(10, s2mps15_ldo_voltage_ranges4),
797 regulator_desc_s2mps15_ldo(11, s2mps15_ldo_voltage_ranges3),
798 regulator_desc_s2mps15_ldo(12, s2mps15_ldo_voltage_ranges3),
799 regulator_desc_s2mps15_ldo(13, s2mps15_ldo_voltage_ranges3),
800 regulator_desc_s2mps15_ldo(14, s2mps15_ldo_voltage_ranges2),
801 regulator_desc_s2mps15_ldo(15, s2mps15_ldo_voltage_ranges1),
802 regulator_desc_s2mps15_ldo(16, s2mps15_ldo_voltage_ranges1),
803 regulator_desc_s2mps15_ldo(17, s2mps15_ldo_voltage_ranges2),
804 regulator_desc_s2mps15_ldo(18, s2mps15_ldo_voltage_ranges1),
805 regulator_desc_s2mps15_ldo(19, s2mps15_ldo_voltage_ranges2),
806 regulator_desc_s2mps15_ldo(20, s2mps15_ldo_voltage_ranges1),
807 regulator_desc_s2mps15_ldo(21, s2mps15_ldo_voltage_ranges2),
808 regulator_desc_s2mps15_ldo(22, s2mps15_ldo_voltage_ranges3),
809 regulator_desc_s2mps15_ldo(23, s2mps15_ldo_voltage_ranges1),
810 regulator_desc_s2mps15_ldo(24, s2mps15_ldo_voltage_ranges2),
811 regulator_desc_s2mps15_ldo(25, s2mps15_ldo_voltage_ranges2),
812 regulator_desc_s2mps15_ldo(26, s2mps15_ldo_voltage_ranges3),
813 regulator_desc_s2mps15_ldo(27, s2mps15_ldo_voltage_ranges1),
814 regulator_desc_s2mps15_buck(1, s2mps15_buck_voltage_ranges1),
815 regulator_desc_s2mps15_buck(2, s2mps15_buck_voltage_ranges1),
816 regulator_desc_s2mps15_buck(3, s2mps15_buck_voltage_ranges1),
817 regulator_desc_s2mps15_buck(4, s2mps15_buck_voltage_ranges1),
818 regulator_desc_s2mps15_buck(5, s2mps15_buck_voltage_ranges1),
819 regulator_desc_s2mps15_buck(6, s2mps15_buck_voltage_ranges1),
820 regulator_desc_s2mps15_buck(7, s2mps15_buck_voltage_ranges1),
821 regulator_desc_s2mps15_buck(8, s2mps15_buck_voltage_ranges2),
822 regulator_desc_s2mps15_buck(9, s2mps15_buck_voltage_ranges2),
823 regulator_desc_s2mps15_buck(10, s2mps15_buck_voltage_ranges2),
824 };
825
s2mps14_pmic_enable_ext_control(struct s2mps11_info * s2mps11,struct regulator_dev * rdev)826 static int s2mps14_pmic_enable_ext_control(struct s2mps11_info *s2mps11,
827 struct regulator_dev *rdev)
828 {
829 return regmap_update_bits(rdev->regmap, rdev->desc->enable_reg,
830 rdev->desc->enable_mask, S2MPS14_ENABLE_EXT_CONTROL);
831 }
832
s2mps14_pmic_dt_parse_ext_control_gpio(struct platform_device * pdev,struct of_regulator_match * rdata,struct s2mps11_info * s2mps11)833 static void s2mps14_pmic_dt_parse_ext_control_gpio(struct platform_device *pdev,
834 struct of_regulator_match *rdata, struct s2mps11_info *s2mps11)
835 {
836 struct gpio_desc **gpio = s2mps11->ext_control_gpiod;
837 unsigned int i;
838 unsigned int valid_regulators[3] = { S2MPS14_LDO10, S2MPS14_LDO11,
839 S2MPS14_LDO12 };
840
841 for (i = 0; i < ARRAY_SIZE(valid_regulators); i++) {
842 unsigned int reg = valid_regulators[i];
843
844 if (!rdata[reg].init_data || !rdata[reg].of_node)
845 continue;
846
847 gpio[reg] = devm_fwnode_gpiod_get(&pdev->dev,
848 of_fwnode_handle(rdata[reg].of_node),
849 "samsung,ext-control",
850 GPIOD_OUT_HIGH | GPIOD_FLAGS_BIT_NONEXCLUSIVE,
851 "s2mps11-regulator");
852 if (PTR_ERR(gpio[reg]) == -ENOENT)
853 gpio[reg] = NULL;
854 else if (IS_ERR(gpio[reg])) {
855 dev_err(&pdev->dev, "Failed to get control GPIO for %d/%s\n",
856 reg, rdata[reg].name);
857 gpio[reg] = NULL;
858 continue;
859 }
860 if (gpio[reg])
861 dev_dbg(&pdev->dev, "Using GPIO for ext-control over %d/%s\n",
862 reg, rdata[reg].name);
863 }
864 }
865
s2mps11_pmic_dt_parse(struct platform_device * pdev,struct of_regulator_match * rdata,struct s2mps11_info * s2mps11,unsigned int rdev_num)866 static int s2mps11_pmic_dt_parse(struct platform_device *pdev,
867 struct of_regulator_match *rdata, struct s2mps11_info *s2mps11,
868 unsigned int rdev_num)
869 {
870 struct device_node *reg_np;
871
872 reg_np = of_get_child_by_name(pdev->dev.parent->of_node, "regulators");
873 if (!reg_np) {
874 dev_err(&pdev->dev, "could not find regulators sub-node\n");
875 return -EINVAL;
876 }
877
878 of_regulator_match(&pdev->dev, reg_np, rdata, rdev_num);
879 if (s2mps11->dev_type == S2MPS14X)
880 s2mps14_pmic_dt_parse_ext_control_gpio(pdev, rdata, s2mps11);
881
882 of_node_put(reg_np);
883
884 return 0;
885 }
886
s2mpu02_set_ramp_delay(struct regulator_dev * rdev,int ramp_delay)887 static int s2mpu02_set_ramp_delay(struct regulator_dev *rdev, int ramp_delay)
888 {
889 unsigned int ramp_val, ramp_shift, ramp_reg;
890 int rdev_id = rdev_get_id(rdev);
891
892 switch (rdev_id) {
893 case S2MPU02_BUCK1:
894 ramp_shift = S2MPU02_BUCK1_RAMP_SHIFT;
895 break;
896 case S2MPU02_BUCK2:
897 ramp_shift = S2MPU02_BUCK2_RAMP_SHIFT;
898 break;
899 case S2MPU02_BUCK3:
900 ramp_shift = S2MPU02_BUCK3_RAMP_SHIFT;
901 break;
902 case S2MPU02_BUCK4:
903 ramp_shift = S2MPU02_BUCK4_RAMP_SHIFT;
904 break;
905 default:
906 return 0;
907 }
908 ramp_reg = S2MPU02_REG_RAMP1;
909 ramp_val = get_ramp_delay(ramp_delay);
910
911 return regmap_update_bits(rdev->regmap, ramp_reg,
912 S2MPU02_BUCK1234_RAMP_MASK << ramp_shift,
913 ramp_val << ramp_shift);
914 }
915
916 static const struct regulator_ops s2mpu02_ldo_ops = {
917 .list_voltage = regulator_list_voltage_linear,
918 .map_voltage = regulator_map_voltage_linear,
919 .is_enabled = regulator_is_enabled_regmap,
920 .enable = s2mps11_regulator_enable,
921 .disable = regulator_disable_regmap,
922 .get_voltage_sel = regulator_get_voltage_sel_regmap,
923 .set_voltage_sel = regulator_set_voltage_sel_regmap,
924 .set_voltage_time_sel = regulator_set_voltage_time_sel,
925 .set_suspend_disable = s2mps11_regulator_set_suspend_disable,
926 };
927
928 static const struct regulator_ops s2mpu02_buck_ops = {
929 .list_voltage = regulator_list_voltage_linear,
930 .map_voltage = regulator_map_voltage_linear,
931 .is_enabled = regulator_is_enabled_regmap,
932 .enable = s2mps11_regulator_enable,
933 .disable = regulator_disable_regmap,
934 .get_voltage_sel = regulator_get_voltage_sel_regmap,
935 .set_voltage_sel = regulator_set_voltage_sel_regmap,
936 .set_voltage_time_sel = regulator_set_voltage_time_sel,
937 .set_suspend_disable = s2mps11_regulator_set_suspend_disable,
938 .set_ramp_delay = s2mpu02_set_ramp_delay,
939 };
940
941 #define regulator_desc_s2mpu02_ldo1(num) { \
942 .name = "LDO"#num, \
943 .id = S2MPU02_LDO##num, \
944 .ops = &s2mpu02_ldo_ops, \
945 .type = REGULATOR_VOLTAGE, \
946 .owner = THIS_MODULE, \
947 .min_uV = S2MPU02_LDO_MIN_900MV, \
948 .uV_step = S2MPU02_LDO_STEP_12_5MV, \
949 .linear_min_sel = S2MPU02_LDO_GROUP1_START_SEL, \
950 .n_voltages = S2MPU02_LDO_N_VOLTAGES, \
951 .vsel_reg = S2MPU02_REG_L1CTRL, \
952 .vsel_mask = S2MPU02_LDO_VSEL_MASK, \
953 .enable_reg = S2MPU02_REG_L1CTRL, \
954 .enable_mask = S2MPU02_ENABLE_MASK \
955 }
956 #define regulator_desc_s2mpu02_ldo2(num) { \
957 .name = "LDO"#num, \
958 .id = S2MPU02_LDO##num, \
959 .ops = &s2mpu02_ldo_ops, \
960 .type = REGULATOR_VOLTAGE, \
961 .owner = THIS_MODULE, \
962 .min_uV = S2MPU02_LDO_MIN_1050MV, \
963 .uV_step = S2MPU02_LDO_STEP_25MV, \
964 .linear_min_sel = S2MPU02_LDO_GROUP2_START_SEL, \
965 .n_voltages = S2MPU02_LDO_N_VOLTAGES, \
966 .vsel_reg = S2MPU02_REG_L2CTRL1, \
967 .vsel_mask = S2MPU02_LDO_VSEL_MASK, \
968 .enable_reg = S2MPU02_REG_L2CTRL1, \
969 .enable_mask = S2MPU02_ENABLE_MASK \
970 }
971 #define regulator_desc_s2mpu02_ldo3(num) { \
972 .name = "LDO"#num, \
973 .id = S2MPU02_LDO##num, \
974 .ops = &s2mpu02_ldo_ops, \
975 .type = REGULATOR_VOLTAGE, \
976 .owner = THIS_MODULE, \
977 .min_uV = S2MPU02_LDO_MIN_900MV, \
978 .uV_step = S2MPU02_LDO_STEP_12_5MV, \
979 .linear_min_sel = S2MPU02_LDO_GROUP1_START_SEL, \
980 .n_voltages = S2MPU02_LDO_N_VOLTAGES, \
981 .vsel_reg = S2MPU02_REG_L3CTRL + num - 3, \
982 .vsel_mask = S2MPU02_LDO_VSEL_MASK, \
983 .enable_reg = S2MPU02_REG_L3CTRL + num - 3, \
984 .enable_mask = S2MPU02_ENABLE_MASK \
985 }
986 #define regulator_desc_s2mpu02_ldo4(num) { \
987 .name = "LDO"#num, \
988 .id = S2MPU02_LDO##num, \
989 .ops = &s2mpu02_ldo_ops, \
990 .type = REGULATOR_VOLTAGE, \
991 .owner = THIS_MODULE, \
992 .min_uV = S2MPU02_LDO_MIN_1050MV, \
993 .uV_step = S2MPU02_LDO_STEP_25MV, \
994 .linear_min_sel = S2MPU02_LDO_GROUP2_START_SEL, \
995 .n_voltages = S2MPU02_LDO_N_VOLTAGES, \
996 .vsel_reg = S2MPU02_REG_L3CTRL + num - 3, \
997 .vsel_mask = S2MPU02_LDO_VSEL_MASK, \
998 .enable_reg = S2MPU02_REG_L3CTRL + num - 3, \
999 .enable_mask = S2MPU02_ENABLE_MASK \
1000 }
1001 #define regulator_desc_s2mpu02_ldo5(num) { \
1002 .name = "LDO"#num, \
1003 .id = S2MPU02_LDO##num, \
1004 .ops = &s2mpu02_ldo_ops, \
1005 .type = REGULATOR_VOLTAGE, \
1006 .owner = THIS_MODULE, \
1007 .min_uV = S2MPU02_LDO_MIN_1600MV, \
1008 .uV_step = S2MPU02_LDO_STEP_50MV, \
1009 .linear_min_sel = S2MPU02_LDO_GROUP3_START_SEL, \
1010 .n_voltages = S2MPU02_LDO_N_VOLTAGES, \
1011 .vsel_reg = S2MPU02_REG_L3CTRL + num - 3, \
1012 .vsel_mask = S2MPU02_LDO_VSEL_MASK, \
1013 .enable_reg = S2MPU02_REG_L3CTRL + num - 3, \
1014 .enable_mask = S2MPU02_ENABLE_MASK \
1015 }
1016
1017 #define regulator_desc_s2mpu02_buck1234(num) { \
1018 .name = "BUCK"#num, \
1019 .id = S2MPU02_BUCK##num, \
1020 .ops = &s2mpu02_buck_ops, \
1021 .type = REGULATOR_VOLTAGE, \
1022 .owner = THIS_MODULE, \
1023 .min_uV = S2MPU02_BUCK1234_MIN_600MV, \
1024 .uV_step = S2MPU02_BUCK1234_STEP_6_25MV, \
1025 .n_voltages = S2MPU02_BUCK_N_VOLTAGES, \
1026 .linear_min_sel = S2MPU02_BUCK1234_START_SEL, \
1027 .ramp_delay = S2MPU02_BUCK_RAMP_DELAY, \
1028 .vsel_reg = S2MPU02_REG_B1CTRL2 + (num - 1) * 2, \
1029 .vsel_mask = S2MPU02_BUCK_VSEL_MASK, \
1030 .enable_reg = S2MPU02_REG_B1CTRL1 + (num - 1) * 2, \
1031 .enable_mask = S2MPU02_ENABLE_MASK \
1032 }
1033 #define regulator_desc_s2mpu02_buck5(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_BUCK5_MIN_1081_25MV, \
1040 .uV_step = S2MPU02_BUCK5_STEP_6_25MV, \
1041 .n_voltages = S2MPU02_BUCK_N_VOLTAGES, \
1042 .linear_min_sel = S2MPU02_BUCK5_START_SEL, \
1043 .ramp_delay = S2MPU02_BUCK_RAMP_DELAY, \
1044 .vsel_reg = S2MPU02_REG_B5CTRL2, \
1045 .vsel_mask = S2MPU02_BUCK_VSEL_MASK, \
1046 .enable_reg = S2MPU02_REG_B5CTRL1, \
1047 .enable_mask = S2MPU02_ENABLE_MASK \
1048 }
1049 #define regulator_desc_s2mpu02_buck6(num) { \
1050 .name = "BUCK"#num, \
1051 .id = S2MPU02_BUCK##num, \
1052 .ops = &s2mpu02_ldo_ops, \
1053 .type = REGULATOR_VOLTAGE, \
1054 .owner = THIS_MODULE, \
1055 .min_uV = S2MPU02_BUCK6_MIN_1700MV, \
1056 .uV_step = S2MPU02_BUCK6_STEP_2_50MV, \
1057 .n_voltages = S2MPU02_BUCK_N_VOLTAGES, \
1058 .linear_min_sel = S2MPU02_BUCK6_START_SEL, \
1059 .ramp_delay = S2MPU02_BUCK_RAMP_DELAY, \
1060 .vsel_reg = S2MPU02_REG_B6CTRL2, \
1061 .vsel_mask = S2MPU02_BUCK_VSEL_MASK, \
1062 .enable_reg = S2MPU02_REG_B6CTRL1, \
1063 .enable_mask = S2MPU02_ENABLE_MASK \
1064 }
1065 #define regulator_desc_s2mpu02_buck7(num) { \
1066 .name = "BUCK"#num, \
1067 .id = S2MPU02_BUCK##num, \
1068 .ops = &s2mpu02_ldo_ops, \
1069 .type = REGULATOR_VOLTAGE, \
1070 .owner = THIS_MODULE, \
1071 .min_uV = S2MPU02_BUCK7_MIN_900MV, \
1072 .uV_step = S2MPU02_BUCK7_STEP_6_25MV, \
1073 .n_voltages = S2MPU02_BUCK_N_VOLTAGES, \
1074 .linear_min_sel = S2MPU02_BUCK7_START_SEL, \
1075 .ramp_delay = S2MPU02_BUCK_RAMP_DELAY, \
1076 .vsel_reg = S2MPU02_REG_B7CTRL2, \
1077 .vsel_mask = S2MPU02_BUCK_VSEL_MASK, \
1078 .enable_reg = S2MPU02_REG_B7CTRL1, \
1079 .enable_mask = S2MPU02_ENABLE_MASK \
1080 }
1081
1082 static const struct regulator_desc s2mpu02_regulators[] = {
1083 regulator_desc_s2mpu02_ldo1(1),
1084 regulator_desc_s2mpu02_ldo2(2),
1085 regulator_desc_s2mpu02_ldo4(3),
1086 regulator_desc_s2mpu02_ldo5(4),
1087 regulator_desc_s2mpu02_ldo4(5),
1088 regulator_desc_s2mpu02_ldo3(6),
1089 regulator_desc_s2mpu02_ldo3(7),
1090 regulator_desc_s2mpu02_ldo4(8),
1091 regulator_desc_s2mpu02_ldo5(9),
1092 regulator_desc_s2mpu02_ldo3(10),
1093 regulator_desc_s2mpu02_ldo4(11),
1094 regulator_desc_s2mpu02_ldo5(12),
1095 regulator_desc_s2mpu02_ldo5(13),
1096 regulator_desc_s2mpu02_ldo5(14),
1097 regulator_desc_s2mpu02_ldo5(15),
1098 regulator_desc_s2mpu02_ldo5(16),
1099 regulator_desc_s2mpu02_ldo4(17),
1100 regulator_desc_s2mpu02_ldo5(18),
1101 regulator_desc_s2mpu02_ldo3(19),
1102 regulator_desc_s2mpu02_ldo4(20),
1103 regulator_desc_s2mpu02_ldo5(21),
1104 regulator_desc_s2mpu02_ldo5(22),
1105 regulator_desc_s2mpu02_ldo5(23),
1106 regulator_desc_s2mpu02_ldo4(24),
1107 regulator_desc_s2mpu02_ldo5(25),
1108 regulator_desc_s2mpu02_ldo4(26),
1109 regulator_desc_s2mpu02_ldo5(27),
1110 regulator_desc_s2mpu02_ldo5(28),
1111 regulator_desc_s2mpu02_buck1234(1),
1112 regulator_desc_s2mpu02_buck1234(2),
1113 regulator_desc_s2mpu02_buck1234(3),
1114 regulator_desc_s2mpu02_buck1234(4),
1115 regulator_desc_s2mpu02_buck5(5),
1116 regulator_desc_s2mpu02_buck6(6),
1117 regulator_desc_s2mpu02_buck7(7),
1118 };
1119
s2mps11_pmic_probe(struct platform_device * pdev)1120 static int s2mps11_pmic_probe(struct platform_device *pdev)
1121 {
1122 struct sec_pmic_dev *iodev = dev_get_drvdata(pdev->dev.parent);
1123 struct of_regulator_match *rdata = NULL;
1124 struct regulator_config config = { };
1125 struct s2mps11_info *s2mps11;
1126 unsigned int rdev_num = 0;
1127 int i, ret = 0;
1128 const struct regulator_desc *regulators;
1129
1130 s2mps11 = devm_kzalloc(&pdev->dev, sizeof(struct s2mps11_info),
1131 GFP_KERNEL);
1132 if (!s2mps11)
1133 return -ENOMEM;
1134
1135 s2mps11->dev_type = platform_get_device_id(pdev)->driver_data;
1136 switch (s2mps11->dev_type) {
1137 case S2MPS11X:
1138 rdev_num = ARRAY_SIZE(s2mps11_regulators);
1139 regulators = s2mps11_regulators;
1140 BUILD_BUG_ON(S2MPS_REGULATOR_MAX < ARRAY_SIZE(s2mps11_regulators));
1141 break;
1142 case S2MPS13X:
1143 rdev_num = ARRAY_SIZE(s2mps13_regulators);
1144 regulators = s2mps13_regulators;
1145 BUILD_BUG_ON(S2MPS_REGULATOR_MAX < ARRAY_SIZE(s2mps13_regulators));
1146 break;
1147 case S2MPS14X:
1148 rdev_num = ARRAY_SIZE(s2mps14_regulators);
1149 regulators = s2mps14_regulators;
1150 BUILD_BUG_ON(S2MPS_REGULATOR_MAX < ARRAY_SIZE(s2mps14_regulators));
1151 break;
1152 case S2MPS15X:
1153 rdev_num = ARRAY_SIZE(s2mps15_regulators);
1154 regulators = s2mps15_regulators;
1155 BUILD_BUG_ON(S2MPS_REGULATOR_MAX < ARRAY_SIZE(s2mps15_regulators));
1156 break;
1157 case S2MPU02:
1158 rdev_num = ARRAY_SIZE(s2mpu02_regulators);
1159 regulators = s2mpu02_regulators;
1160 BUILD_BUG_ON(S2MPS_REGULATOR_MAX < ARRAY_SIZE(s2mpu02_regulators));
1161 break;
1162 default:
1163 dev_err(&pdev->dev, "Invalid device type: %u\n",
1164 s2mps11->dev_type);
1165 return -EINVAL;
1166 }
1167
1168 s2mps11->ext_control_gpiod = devm_kcalloc(&pdev->dev, rdev_num,
1169 sizeof(*s2mps11->ext_control_gpiod), GFP_KERNEL);
1170 if (!s2mps11->ext_control_gpiod)
1171 return -ENOMEM;
1172
1173 rdata = kcalloc(rdev_num, sizeof(*rdata), GFP_KERNEL);
1174 if (!rdata)
1175 return -ENOMEM;
1176
1177 for (i = 0; i < rdev_num; i++)
1178 rdata[i].name = regulators[i].name;
1179
1180 ret = s2mps11_pmic_dt_parse(pdev, rdata, s2mps11, rdev_num);
1181 if (ret)
1182 goto out;
1183
1184 platform_set_drvdata(pdev, s2mps11);
1185
1186 config.dev = &pdev->dev;
1187 config.regmap = iodev->regmap_pmic;
1188 config.driver_data = s2mps11;
1189 for (i = 0; i < rdev_num; i++) {
1190 struct regulator_dev *regulator;
1191
1192 config.init_data = rdata[i].init_data;
1193 config.of_node = rdata[i].of_node;
1194 config.ena_gpiod = s2mps11->ext_control_gpiod[i];
1195 /*
1196 * Hand the GPIO descriptor management over to the regulator
1197 * core, remove it from devres management.
1198 */
1199 if (config.ena_gpiod)
1200 devm_gpiod_unhinge(&pdev->dev, config.ena_gpiod);
1201 regulator = devm_regulator_register(&pdev->dev,
1202 ®ulators[i], &config);
1203 if (IS_ERR(regulator)) {
1204 ret = PTR_ERR(regulator);
1205 dev_err(&pdev->dev, "regulator init failed for %d\n",
1206 i);
1207 goto out;
1208 }
1209
1210 if (config.ena_gpiod) {
1211 ret = s2mps14_pmic_enable_ext_control(s2mps11,
1212 regulator);
1213 if (ret < 0) {
1214 dev_err(&pdev->dev,
1215 "failed to enable GPIO control over %s: %d\n",
1216 regulator->desc->name, ret);
1217 goto out;
1218 }
1219 }
1220 }
1221
1222 out:
1223 kfree(rdata);
1224
1225 return ret;
1226 }
1227
1228 static const struct platform_device_id s2mps11_pmic_id[] = {
1229 { "s2mps11-regulator", S2MPS11X},
1230 { "s2mps13-regulator", S2MPS13X},
1231 { "s2mps14-regulator", S2MPS14X},
1232 { "s2mps15-regulator", S2MPS15X},
1233 { "s2mpu02-regulator", S2MPU02},
1234 { },
1235 };
1236 MODULE_DEVICE_TABLE(platform, s2mps11_pmic_id);
1237
1238 static struct platform_driver s2mps11_pmic_driver = {
1239 .driver = {
1240 .name = "s2mps11-pmic",
1241 .probe_type = PROBE_PREFER_ASYNCHRONOUS,
1242 },
1243 .probe = s2mps11_pmic_probe,
1244 .id_table = s2mps11_pmic_id,
1245 };
1246
1247 module_platform_driver(s2mps11_pmic_driver);
1248
1249 /* Module information */
1250 MODULE_AUTHOR("Sangbeom Kim <sbkim73@samsung.com>");
1251 MODULE_DESCRIPTION("Samsung S2MPS11/S2MPS14/S2MPS15/S2MPU02 Regulator Driver");
1252 MODULE_LICENSE("GPL");
1253