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Merge tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi
[deliverable/linux.git] / drivers / regulator / s2mps11.c
1 /*
2 * s2mps11.c
3 *
4 * Copyright (c) 2012-2014 Samsung Electronics Co., Ltd
5 * http://www.samsung.com
6 *
7 * This program is free software; you can redistribute it and/or modify it
8 * under the terms of the GNU General Public License as published by the
9 * Free Software Foundation; either version 2 of the License, or (at your
10 * option) any later version.
11 *
12 * This program is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 * GNU General Public License for more details.
16 *
17 */
18
19 #include <linux/bug.h>
20 #include <linux/err.h>
21 #include <linux/gpio.h>
22 #include <linux/slab.h>
23 #include <linux/module.h>
24 #include <linux/of.h>
25 #include <linux/regmap.h>
26 #include <linux/platform_device.h>
27 #include <linux/regulator/driver.h>
28 #include <linux/regulator/machine.h>
29 #include <linux/regulator/of_regulator.h>
30 #include <linux/of_gpio.h>
31 #include <linux/mfd/samsung/core.h>
32 #include <linux/mfd/samsung/s2mps11.h>
33 #include <linux/mfd/samsung/s2mps13.h>
34 #include <linux/mfd/samsung/s2mps14.h>
35 #include <linux/mfd/samsung/s2mps15.h>
36 #include <linux/mfd/samsung/s2mpu02.h>
37
38 /* The highest number of possible regulators for supported devices. */
39 #define S2MPS_REGULATOR_MAX S2MPS13_REGULATOR_MAX
40 struct s2mps11_info {
41 int ramp_delay2;
42 int ramp_delay34;
43 int ramp_delay5;
44 int ramp_delay16;
45 int ramp_delay7810;
46 int ramp_delay9;
47
48 enum sec_device_type dev_type;
49
50 /*
51 * One bit for each S2MPS13/S2MPS14/S2MPU02 regulator whether
52 * the suspend mode was enabled.
53 */
54 DECLARE_BITMAP(suspend_state, S2MPS_REGULATOR_MAX);
55
56 /*
57 * Array (size: number of regulators) with GPIO-s for external
58 * sleep control.
59 */
60 int *ext_control_gpio;
61 };
62
63 static int get_ramp_delay(int ramp_delay)
64 {
65 unsigned char cnt = 0;
66
67 ramp_delay /= 6250;
68
69 while (true) {
70 ramp_delay = ramp_delay >> 1;
71 if (ramp_delay == 0)
72 break;
73 cnt++;
74 }
75
76 if (cnt > 3)
77 cnt = 3;
78
79 return cnt;
80 }
81
82 static int s2mps11_regulator_set_voltage_time_sel(struct regulator_dev *rdev,
83 unsigned int old_selector,
84 unsigned int new_selector)
85 {
86 struct s2mps11_info *s2mps11 = rdev_get_drvdata(rdev);
87 unsigned int ramp_delay = 0;
88 int old_volt, new_volt;
89
90 switch (rdev_get_id(rdev)) {
91 case S2MPS11_BUCK2:
92 ramp_delay = s2mps11->ramp_delay2;
93 break;
94 case S2MPS11_BUCK3:
95 case S2MPS11_BUCK4:
96 ramp_delay = s2mps11->ramp_delay34;
97 break;
98 case S2MPS11_BUCK5:
99 ramp_delay = s2mps11->ramp_delay5;
100 break;
101 case S2MPS11_BUCK6:
102 case S2MPS11_BUCK1:
103 ramp_delay = s2mps11->ramp_delay16;
104 break;
105 case S2MPS11_BUCK7:
106 case S2MPS11_BUCK8:
107 case S2MPS11_BUCK10:
108 ramp_delay = s2mps11->ramp_delay7810;
109 break;
110 case S2MPS11_BUCK9:
111 ramp_delay = s2mps11->ramp_delay9;
112 }
113
114 if (ramp_delay == 0)
115 ramp_delay = rdev->desc->ramp_delay;
116
117 old_volt = rdev->desc->min_uV + (rdev->desc->uV_step * old_selector);
118 new_volt = rdev->desc->min_uV + (rdev->desc->uV_step * new_selector);
119
120 return DIV_ROUND_UP(abs(new_volt - old_volt), ramp_delay);
121 }
122
123 static int s2mps11_set_ramp_delay(struct regulator_dev *rdev, int ramp_delay)
124 {
125 struct s2mps11_info *s2mps11 = rdev_get_drvdata(rdev);
126 unsigned int ramp_val, ramp_shift, ramp_reg = S2MPS11_REG_RAMP_BUCK;
127 unsigned int ramp_enable = 1, enable_shift = 0;
128 int ret;
129
130 switch (rdev_get_id(rdev)) {
131 case S2MPS11_BUCK1:
132 if (ramp_delay > s2mps11->ramp_delay16)
133 s2mps11->ramp_delay16 = ramp_delay;
134 else
135 ramp_delay = s2mps11->ramp_delay16;
136
137 ramp_shift = S2MPS11_BUCK16_RAMP_SHIFT;
138 break;
139 case S2MPS11_BUCK2:
140 enable_shift = S2MPS11_BUCK2_RAMP_EN_SHIFT;
141 if (!ramp_delay) {
142 ramp_enable = 0;
143 break;
144 }
145
146 s2mps11->ramp_delay2 = ramp_delay;
147 ramp_shift = S2MPS11_BUCK2_RAMP_SHIFT;
148 ramp_reg = S2MPS11_REG_RAMP;
149 break;
150 case S2MPS11_BUCK3:
151 enable_shift = S2MPS11_BUCK3_RAMP_EN_SHIFT;
152 if (!ramp_delay) {
153 ramp_enable = 0;
154 break;
155 }
156
157 if (ramp_delay > s2mps11->ramp_delay34)
158 s2mps11->ramp_delay34 = ramp_delay;
159 else
160 ramp_delay = s2mps11->ramp_delay34;
161
162 ramp_shift = S2MPS11_BUCK34_RAMP_SHIFT;
163 ramp_reg = S2MPS11_REG_RAMP;
164 break;
165 case S2MPS11_BUCK4:
166 enable_shift = S2MPS11_BUCK4_RAMP_EN_SHIFT;
167 if (!ramp_delay) {
168 ramp_enable = 0;
169 break;
170 }
171
172 if (ramp_delay > s2mps11->ramp_delay34)
173 s2mps11->ramp_delay34 = ramp_delay;
174 else
175 ramp_delay = s2mps11->ramp_delay34;
176
177 ramp_shift = S2MPS11_BUCK34_RAMP_SHIFT;
178 ramp_reg = S2MPS11_REG_RAMP;
179 break;
180 case S2MPS11_BUCK5:
181 s2mps11->ramp_delay5 = ramp_delay;
182 ramp_shift = S2MPS11_BUCK5_RAMP_SHIFT;
183 break;
184 case S2MPS11_BUCK6:
185 enable_shift = S2MPS11_BUCK6_RAMP_EN_SHIFT;
186 if (!ramp_delay) {
187 ramp_enable = 0;
188 break;
189 }
190
191 if (ramp_delay > s2mps11->ramp_delay16)
192 s2mps11->ramp_delay16 = ramp_delay;
193 else
194 ramp_delay = s2mps11->ramp_delay16;
195
196 ramp_shift = S2MPS11_BUCK16_RAMP_SHIFT;
197 break;
198 case S2MPS11_BUCK7:
199 case S2MPS11_BUCK8:
200 case S2MPS11_BUCK10:
201 if (ramp_delay > s2mps11->ramp_delay7810)
202 s2mps11->ramp_delay7810 = ramp_delay;
203 else
204 ramp_delay = s2mps11->ramp_delay7810;
205
206 ramp_shift = S2MPS11_BUCK7810_RAMP_SHIFT;
207 break;
208 case S2MPS11_BUCK9:
209 s2mps11->ramp_delay9 = ramp_delay;
210 ramp_shift = S2MPS11_BUCK9_RAMP_SHIFT;
211 break;
212 default:
213 return 0;
214 }
215
216 if (!ramp_enable)
217 goto ramp_disable;
218
219 /* Ramp delay can be enabled/disabled only for buck[2346] */
220 if ((rdev_get_id(rdev) >= S2MPS11_BUCK2 &&
221 rdev_get_id(rdev) <= S2MPS11_BUCK4) ||
222 rdev_get_id(rdev) == S2MPS11_BUCK6) {
223 ret = regmap_update_bits(rdev->regmap, S2MPS11_REG_RAMP,
224 1 << enable_shift, 1 << enable_shift);
225 if (ret) {
226 dev_err(&rdev->dev, "failed to enable ramp rate\n");
227 return ret;
228 }
229 }
230
231 ramp_val = get_ramp_delay(ramp_delay);
232
233 return regmap_update_bits(rdev->regmap, ramp_reg, 0x3 << ramp_shift,
234 ramp_val << ramp_shift);
235
236 ramp_disable:
237 return regmap_update_bits(rdev->regmap, S2MPS11_REG_RAMP,
238 1 << enable_shift, 0);
239 }
240
241 static struct regulator_ops s2mps11_ldo_ops = {
242 .list_voltage = regulator_list_voltage_linear,
243 .map_voltage = regulator_map_voltage_linear,
244 .is_enabled = regulator_is_enabled_regmap,
245 .enable = regulator_enable_regmap,
246 .disable = regulator_disable_regmap,
247 .get_voltage_sel = regulator_get_voltage_sel_regmap,
248 .set_voltage_sel = regulator_set_voltage_sel_regmap,
249 .set_voltage_time_sel = regulator_set_voltage_time_sel,
250 };
251
252 static struct regulator_ops s2mps11_buck_ops = {
253 .list_voltage = regulator_list_voltage_linear,
254 .map_voltage = regulator_map_voltage_linear,
255 .is_enabled = regulator_is_enabled_regmap,
256 .enable = regulator_enable_regmap,
257 .disable = regulator_disable_regmap,
258 .get_voltage_sel = regulator_get_voltage_sel_regmap,
259 .set_voltage_sel = regulator_set_voltage_sel_regmap,
260 .set_voltage_time_sel = s2mps11_regulator_set_voltage_time_sel,
261 .set_ramp_delay = s2mps11_set_ramp_delay,
262 };
263
264 #define regulator_desc_s2mps11_ldo(num, step) { \
265 .name = "LDO"#num, \
266 .id = S2MPS11_LDO##num, \
267 .ops = &s2mps11_ldo_ops, \
268 .type = REGULATOR_VOLTAGE, \
269 .owner = THIS_MODULE, \
270 .min_uV = MIN_800_MV, \
271 .uV_step = step, \
272 .n_voltages = S2MPS11_LDO_N_VOLTAGES, \
273 .vsel_reg = S2MPS11_REG_L1CTRL + num - 1, \
274 .vsel_mask = S2MPS11_LDO_VSEL_MASK, \
275 .enable_reg = S2MPS11_REG_L1CTRL + num - 1, \
276 .enable_mask = S2MPS11_ENABLE_MASK \
277 }
278
279 #define regulator_desc_s2mps11_buck1_4(num) { \
280 .name = "BUCK"#num, \
281 .id = S2MPS11_BUCK##num, \
282 .ops = &s2mps11_buck_ops, \
283 .type = REGULATOR_VOLTAGE, \
284 .owner = THIS_MODULE, \
285 .min_uV = MIN_600_MV, \
286 .uV_step = STEP_6_25_MV, \
287 .n_voltages = S2MPS11_BUCK_N_VOLTAGES, \
288 .ramp_delay = S2MPS11_RAMP_DELAY, \
289 .vsel_reg = S2MPS11_REG_B1CTRL2 + (num - 1) * 2, \
290 .vsel_mask = S2MPS11_BUCK_VSEL_MASK, \
291 .enable_reg = S2MPS11_REG_B1CTRL1 + (num - 1) * 2, \
292 .enable_mask = S2MPS11_ENABLE_MASK \
293 }
294
295 #define regulator_desc_s2mps11_buck5 { \
296 .name = "BUCK5", \
297 .id = S2MPS11_BUCK5, \
298 .ops = &s2mps11_buck_ops, \
299 .type = REGULATOR_VOLTAGE, \
300 .owner = THIS_MODULE, \
301 .min_uV = MIN_600_MV, \
302 .uV_step = STEP_6_25_MV, \
303 .n_voltages = S2MPS11_BUCK_N_VOLTAGES, \
304 .ramp_delay = S2MPS11_RAMP_DELAY, \
305 .vsel_reg = S2MPS11_REG_B5CTRL2, \
306 .vsel_mask = S2MPS11_BUCK_VSEL_MASK, \
307 .enable_reg = S2MPS11_REG_B5CTRL1, \
308 .enable_mask = S2MPS11_ENABLE_MASK \
309 }
310
311 #define regulator_desc_s2mps11_buck6_10(num, min, step) { \
312 .name = "BUCK"#num, \
313 .id = S2MPS11_BUCK##num, \
314 .ops = &s2mps11_buck_ops, \
315 .type = REGULATOR_VOLTAGE, \
316 .owner = THIS_MODULE, \
317 .min_uV = min, \
318 .uV_step = step, \
319 .n_voltages = S2MPS11_BUCK_N_VOLTAGES, \
320 .ramp_delay = S2MPS11_RAMP_DELAY, \
321 .vsel_reg = S2MPS11_REG_B6CTRL2 + (num - 6) * 2, \
322 .vsel_mask = S2MPS11_BUCK_VSEL_MASK, \
323 .enable_reg = S2MPS11_REG_B6CTRL1 + (num - 6) * 2, \
324 .enable_mask = S2MPS11_ENABLE_MASK \
325 }
326
327 static const struct regulator_desc s2mps11_regulators[] = {
328 regulator_desc_s2mps11_ldo(1, STEP_25_MV),
329 regulator_desc_s2mps11_ldo(2, STEP_50_MV),
330 regulator_desc_s2mps11_ldo(3, STEP_50_MV),
331 regulator_desc_s2mps11_ldo(4, STEP_50_MV),
332 regulator_desc_s2mps11_ldo(5, STEP_50_MV),
333 regulator_desc_s2mps11_ldo(6, STEP_25_MV),
334 regulator_desc_s2mps11_ldo(7, STEP_50_MV),
335 regulator_desc_s2mps11_ldo(8, STEP_50_MV),
336 regulator_desc_s2mps11_ldo(9, STEP_50_MV),
337 regulator_desc_s2mps11_ldo(10, STEP_50_MV),
338 regulator_desc_s2mps11_ldo(11, STEP_25_MV),
339 regulator_desc_s2mps11_ldo(12, STEP_50_MV),
340 regulator_desc_s2mps11_ldo(13, STEP_50_MV),
341 regulator_desc_s2mps11_ldo(14, STEP_50_MV),
342 regulator_desc_s2mps11_ldo(15, STEP_50_MV),
343 regulator_desc_s2mps11_ldo(16, STEP_50_MV),
344 regulator_desc_s2mps11_ldo(17, STEP_50_MV),
345 regulator_desc_s2mps11_ldo(18, STEP_50_MV),
346 regulator_desc_s2mps11_ldo(19, STEP_50_MV),
347 regulator_desc_s2mps11_ldo(20, STEP_50_MV),
348 regulator_desc_s2mps11_ldo(21, STEP_50_MV),
349 regulator_desc_s2mps11_ldo(22, STEP_25_MV),
350 regulator_desc_s2mps11_ldo(23, STEP_25_MV),
351 regulator_desc_s2mps11_ldo(24, STEP_50_MV),
352 regulator_desc_s2mps11_ldo(25, STEP_50_MV),
353 regulator_desc_s2mps11_ldo(26, STEP_50_MV),
354 regulator_desc_s2mps11_ldo(27, STEP_25_MV),
355 regulator_desc_s2mps11_ldo(28, STEP_50_MV),
356 regulator_desc_s2mps11_ldo(29, STEP_50_MV),
357 regulator_desc_s2mps11_ldo(30, STEP_50_MV),
358 regulator_desc_s2mps11_ldo(31, STEP_50_MV),
359 regulator_desc_s2mps11_ldo(32, STEP_50_MV),
360 regulator_desc_s2mps11_ldo(33, STEP_50_MV),
361 regulator_desc_s2mps11_ldo(34, STEP_50_MV),
362 regulator_desc_s2mps11_ldo(35, STEP_50_MV),
363 regulator_desc_s2mps11_ldo(36, STEP_50_MV),
364 regulator_desc_s2mps11_ldo(37, STEP_50_MV),
365 regulator_desc_s2mps11_ldo(38, STEP_50_MV),
366 regulator_desc_s2mps11_buck1_4(1),
367 regulator_desc_s2mps11_buck1_4(2),
368 regulator_desc_s2mps11_buck1_4(3),
369 regulator_desc_s2mps11_buck1_4(4),
370 regulator_desc_s2mps11_buck5,
371 regulator_desc_s2mps11_buck6_10(6, MIN_600_MV, STEP_6_25_MV),
372 regulator_desc_s2mps11_buck6_10(7, MIN_600_MV, STEP_6_25_MV),
373 regulator_desc_s2mps11_buck6_10(8, MIN_600_MV, STEP_6_25_MV),
374 regulator_desc_s2mps11_buck6_10(9, MIN_3000_MV, STEP_25_MV),
375 regulator_desc_s2mps11_buck6_10(10, MIN_750_MV, STEP_12_5_MV),
376 };
377
378 static struct regulator_ops s2mps14_reg_ops;
379
380 #define regulator_desc_s2mps13_ldo(num, min, step, min_sel) { \
381 .name = "LDO"#num, \
382 .id = S2MPS13_LDO##num, \
383 .ops = &s2mps14_reg_ops, \
384 .type = REGULATOR_VOLTAGE, \
385 .owner = THIS_MODULE, \
386 .min_uV = min, \
387 .uV_step = step, \
388 .linear_min_sel = min_sel, \
389 .n_voltages = S2MPS14_LDO_N_VOLTAGES, \
390 .vsel_reg = S2MPS13_REG_L1CTRL + num - 1, \
391 .vsel_mask = S2MPS14_LDO_VSEL_MASK, \
392 .enable_reg = S2MPS13_REG_L1CTRL + num - 1, \
393 .enable_mask = S2MPS14_ENABLE_MASK \
394 }
395
396 #define regulator_desc_s2mps13_buck(num, min, step, min_sel) { \
397 .name = "BUCK"#num, \
398 .id = S2MPS13_BUCK##num, \
399 .ops = &s2mps14_reg_ops, \
400 .type = REGULATOR_VOLTAGE, \
401 .owner = THIS_MODULE, \
402 .min_uV = min, \
403 .uV_step = step, \
404 .linear_min_sel = min_sel, \
405 .n_voltages = S2MPS14_BUCK_N_VOLTAGES, \
406 .ramp_delay = S2MPS13_BUCK_RAMP_DELAY, \
407 .vsel_reg = S2MPS13_REG_B1OUT + (num - 1) * 2, \
408 .vsel_mask = S2MPS14_BUCK_VSEL_MASK, \
409 .enable_reg = S2MPS13_REG_B1CTRL + (num - 1) * 2, \
410 .enable_mask = S2MPS14_ENABLE_MASK \
411 }
412
413 #define regulator_desc_s2mps13_buck7(num, min, step, min_sel) { \
414 .name = "BUCK"#num, \
415 .id = S2MPS13_BUCK##num, \
416 .ops = &s2mps14_reg_ops, \
417 .type = REGULATOR_VOLTAGE, \
418 .owner = THIS_MODULE, \
419 .min_uV = min, \
420 .uV_step = step, \
421 .linear_min_sel = min_sel, \
422 .n_voltages = S2MPS14_BUCK_N_VOLTAGES, \
423 .ramp_delay = S2MPS13_BUCK_RAMP_DELAY, \
424 .vsel_reg = S2MPS13_REG_B1OUT + (num) * 2 - 1, \
425 .vsel_mask = S2MPS14_BUCK_VSEL_MASK, \
426 .enable_reg = S2MPS13_REG_B1CTRL + (num - 1) * 2, \
427 .enable_mask = S2MPS14_ENABLE_MASK \
428 }
429
430 #define regulator_desc_s2mps13_buck8_10(num, min, step, min_sel) { \
431 .name = "BUCK"#num, \
432 .id = S2MPS13_BUCK##num, \
433 .ops = &s2mps14_reg_ops, \
434 .type = REGULATOR_VOLTAGE, \
435 .owner = THIS_MODULE, \
436 .min_uV = min, \
437 .uV_step = step, \
438 .linear_min_sel = min_sel, \
439 .n_voltages = S2MPS14_BUCK_N_VOLTAGES, \
440 .ramp_delay = S2MPS13_BUCK_RAMP_DELAY, \
441 .vsel_reg = S2MPS13_REG_B1OUT + (num) * 2 - 1, \
442 .vsel_mask = S2MPS14_BUCK_VSEL_MASK, \
443 .enable_reg = S2MPS13_REG_B1CTRL + (num) * 2 - 1, \
444 .enable_mask = S2MPS14_ENABLE_MASK \
445 }
446
447 static const struct regulator_desc s2mps13_regulators[] = {
448 regulator_desc_s2mps13_ldo(1, MIN_800_MV, STEP_12_5_MV, 0x00),
449 regulator_desc_s2mps13_ldo(2, MIN_1400_MV, STEP_50_MV, 0x0C),
450 regulator_desc_s2mps13_ldo(3, MIN_1000_MV, STEP_25_MV, 0x08),
451 regulator_desc_s2mps13_ldo(4, MIN_800_MV, STEP_12_5_MV, 0x00),
452 regulator_desc_s2mps13_ldo(5, MIN_800_MV, STEP_12_5_MV, 0x00),
453 regulator_desc_s2mps13_ldo(6, MIN_800_MV, STEP_12_5_MV, 0x00),
454 regulator_desc_s2mps13_ldo(7, MIN_1000_MV, STEP_25_MV, 0x08),
455 regulator_desc_s2mps13_ldo(8, MIN_1000_MV, STEP_25_MV, 0x08),
456 regulator_desc_s2mps13_ldo(9, MIN_1000_MV, STEP_25_MV, 0x08),
457 regulator_desc_s2mps13_ldo(10, MIN_1400_MV, STEP_50_MV, 0x0C),
458 regulator_desc_s2mps13_ldo(11, MIN_800_MV, STEP_25_MV, 0x10),
459 regulator_desc_s2mps13_ldo(12, MIN_800_MV, STEP_25_MV, 0x10),
460 regulator_desc_s2mps13_ldo(13, MIN_800_MV, STEP_25_MV, 0x10),
461 regulator_desc_s2mps13_ldo(14, MIN_800_MV, STEP_12_5_MV, 0x00),
462 regulator_desc_s2mps13_ldo(15, MIN_800_MV, STEP_12_5_MV, 0x00),
463 regulator_desc_s2mps13_ldo(16, MIN_1400_MV, STEP_50_MV, 0x0C),
464 regulator_desc_s2mps13_ldo(17, MIN_1400_MV, STEP_50_MV, 0x0C),
465 regulator_desc_s2mps13_ldo(18, MIN_1000_MV, STEP_25_MV, 0x08),
466 regulator_desc_s2mps13_ldo(19, MIN_1000_MV, STEP_25_MV, 0x08),
467 regulator_desc_s2mps13_ldo(20, MIN_1400_MV, STEP_50_MV, 0x0C),
468 regulator_desc_s2mps13_ldo(21, MIN_1000_MV, STEP_25_MV, 0x08),
469 regulator_desc_s2mps13_ldo(22, MIN_1000_MV, STEP_25_MV, 0x08),
470 regulator_desc_s2mps13_ldo(23, MIN_800_MV, STEP_12_5_MV, 0x00),
471 regulator_desc_s2mps13_ldo(24, MIN_800_MV, STEP_12_5_MV, 0x00),
472 regulator_desc_s2mps13_ldo(25, MIN_1400_MV, STEP_50_MV, 0x0C),
473 regulator_desc_s2mps13_ldo(26, MIN_1400_MV, STEP_50_MV, 0x0C),
474 regulator_desc_s2mps13_ldo(27, MIN_1400_MV, STEP_50_MV, 0x0C),
475 regulator_desc_s2mps13_ldo(28, MIN_1000_MV, STEP_25_MV, 0x08),
476 regulator_desc_s2mps13_ldo(29, MIN_1400_MV, STEP_50_MV, 0x0C),
477 regulator_desc_s2mps13_ldo(30, MIN_1400_MV, STEP_50_MV, 0x0C),
478 regulator_desc_s2mps13_ldo(31, MIN_1000_MV, STEP_25_MV, 0x08),
479 regulator_desc_s2mps13_ldo(32, MIN_1000_MV, STEP_25_MV, 0x08),
480 regulator_desc_s2mps13_ldo(33, MIN_1400_MV, STEP_50_MV, 0x0C),
481 regulator_desc_s2mps13_ldo(34, MIN_1000_MV, STEP_25_MV, 0x08),
482 regulator_desc_s2mps13_ldo(35, MIN_1400_MV, STEP_50_MV, 0x0C),
483 regulator_desc_s2mps13_ldo(36, MIN_800_MV, STEP_12_5_MV, 0x00),
484 regulator_desc_s2mps13_ldo(37, MIN_1000_MV, STEP_25_MV, 0x08),
485 regulator_desc_s2mps13_ldo(38, MIN_1400_MV, STEP_50_MV, 0x0C),
486 regulator_desc_s2mps13_ldo(39, MIN_1000_MV, STEP_25_MV, 0x08),
487 regulator_desc_s2mps13_ldo(40, MIN_1400_MV, STEP_50_MV, 0x0C),
488 regulator_desc_s2mps13_buck(1, MIN_500_MV, STEP_6_25_MV, 0x10),
489 regulator_desc_s2mps13_buck(2, MIN_500_MV, STEP_6_25_MV, 0x10),
490 regulator_desc_s2mps13_buck(3, MIN_500_MV, STEP_6_25_MV, 0x10),
491 regulator_desc_s2mps13_buck(4, MIN_500_MV, STEP_6_25_MV, 0x10),
492 regulator_desc_s2mps13_buck(5, MIN_500_MV, STEP_6_25_MV, 0x10),
493 regulator_desc_s2mps13_buck(6, MIN_500_MV, STEP_6_25_MV, 0x10),
494 regulator_desc_s2mps13_buck7(7, MIN_500_MV, STEP_6_25_MV, 0x10),
495 regulator_desc_s2mps13_buck8_10(8, MIN_1000_MV, STEP_12_5_MV, 0x20),
496 regulator_desc_s2mps13_buck8_10(9, MIN_1000_MV, STEP_12_5_MV, 0x20),
497 regulator_desc_s2mps13_buck8_10(10, MIN_500_MV, STEP_6_25_MV, 0x10),
498 };
499
500 static int s2mps14_regulator_enable(struct regulator_dev *rdev)
501 {
502 struct s2mps11_info *s2mps11 = rdev_get_drvdata(rdev);
503 unsigned int val;
504
505 switch (s2mps11->dev_type) {
506 case S2MPS13X:
507 case S2MPS14X:
508 if (test_bit(rdev_get_id(rdev), s2mps11->suspend_state))
509 val = S2MPS14_ENABLE_SUSPEND;
510 else if (gpio_is_valid(s2mps11->ext_control_gpio[rdev_get_id(rdev)]))
511 val = S2MPS14_ENABLE_EXT_CONTROL;
512 else
513 val = rdev->desc->enable_mask;
514 break;
515 case S2MPU02:
516 if (test_bit(rdev_get_id(rdev), s2mps11->suspend_state))
517 val = S2MPU02_ENABLE_SUSPEND;
518 else
519 val = rdev->desc->enable_mask;
520 break;
521 default:
522 return -EINVAL;
523 }
524
525 return regmap_update_bits(rdev->regmap, rdev->desc->enable_reg,
526 rdev->desc->enable_mask, val);
527 }
528
529 static int s2mps14_regulator_set_suspend_disable(struct regulator_dev *rdev)
530 {
531 int ret;
532 unsigned int val, state;
533 struct s2mps11_info *s2mps11 = rdev_get_drvdata(rdev);
534 int rdev_id = rdev_get_id(rdev);
535
536 /* Below LDO should be always on or does not support suspend mode. */
537 switch (s2mps11->dev_type) {
538 case S2MPS13X:
539 case S2MPS14X:
540 switch (rdev_id) {
541 case S2MPS14_LDO3:
542 return 0;
543 default:
544 state = S2MPS14_ENABLE_SUSPEND;
545 break;
546 }
547 break;
548 case S2MPU02:
549 switch (rdev_id) {
550 case S2MPU02_LDO13:
551 case S2MPU02_LDO14:
552 case S2MPU02_LDO15:
553 case S2MPU02_LDO17:
554 case S2MPU02_BUCK7:
555 state = S2MPU02_DISABLE_SUSPEND;
556 break;
557 default:
558 state = S2MPU02_ENABLE_SUSPEND;
559 break;
560 }
561 break;
562 default:
563 return -EINVAL;
564 }
565
566 ret = regmap_read(rdev->regmap, rdev->desc->enable_reg, &val);
567 if (ret < 0)
568 return ret;
569
570 set_bit(rdev_get_id(rdev), s2mps11->suspend_state);
571 /*
572 * Don't enable suspend mode if regulator is already disabled because
573 * this would effectively for a short time turn on the regulator after
574 * resuming.
575 * However we still want to toggle the suspend_state bit for regulator
576 * in case if it got enabled before suspending the system.
577 */
578 if (!(val & rdev->desc->enable_mask))
579 return 0;
580
581 return regmap_update_bits(rdev->regmap, rdev->desc->enable_reg,
582 rdev->desc->enable_mask, state);
583 }
584
585 static struct regulator_ops s2mps14_reg_ops = {
586 .list_voltage = regulator_list_voltage_linear,
587 .map_voltage = regulator_map_voltage_linear,
588 .is_enabled = regulator_is_enabled_regmap,
589 .enable = s2mps14_regulator_enable,
590 .disable = regulator_disable_regmap,
591 .get_voltage_sel = regulator_get_voltage_sel_regmap,
592 .set_voltage_sel = regulator_set_voltage_sel_regmap,
593 .set_voltage_time_sel = regulator_set_voltage_time_sel,
594 .set_suspend_disable = s2mps14_regulator_set_suspend_disable,
595 };
596
597 #define regulator_desc_s2mps14_ldo(num, min, step) { \
598 .name = "LDO"#num, \
599 .id = S2MPS14_LDO##num, \
600 .ops = &s2mps14_reg_ops, \
601 .type = REGULATOR_VOLTAGE, \
602 .owner = THIS_MODULE, \
603 .min_uV = min, \
604 .uV_step = step, \
605 .n_voltages = S2MPS14_LDO_N_VOLTAGES, \
606 .vsel_reg = S2MPS14_REG_L1CTRL + num - 1, \
607 .vsel_mask = S2MPS14_LDO_VSEL_MASK, \
608 .enable_reg = S2MPS14_REG_L1CTRL + num - 1, \
609 .enable_mask = S2MPS14_ENABLE_MASK \
610 }
611
612 #define regulator_desc_s2mps14_buck(num, min, step, min_sel) { \
613 .name = "BUCK"#num, \
614 .id = S2MPS14_BUCK##num, \
615 .ops = &s2mps14_reg_ops, \
616 .type = REGULATOR_VOLTAGE, \
617 .owner = THIS_MODULE, \
618 .min_uV = min, \
619 .uV_step = step, \
620 .n_voltages = S2MPS14_BUCK_N_VOLTAGES, \
621 .linear_min_sel = min_sel, \
622 .ramp_delay = S2MPS14_BUCK_RAMP_DELAY, \
623 .vsel_reg = S2MPS14_REG_B1CTRL2 + (num - 1) * 2, \
624 .vsel_mask = S2MPS14_BUCK_VSEL_MASK, \
625 .enable_reg = S2MPS14_REG_B1CTRL1 + (num - 1) * 2, \
626 .enable_mask = S2MPS14_ENABLE_MASK \
627 }
628
629 static const struct regulator_desc s2mps14_regulators[] = {
630 regulator_desc_s2mps14_ldo(1, MIN_800_MV, STEP_12_5_MV),
631 regulator_desc_s2mps14_ldo(2, MIN_800_MV, STEP_12_5_MV),
632 regulator_desc_s2mps14_ldo(3, MIN_800_MV, STEP_25_MV),
633 regulator_desc_s2mps14_ldo(4, MIN_800_MV, STEP_25_MV),
634 regulator_desc_s2mps14_ldo(5, MIN_800_MV, STEP_12_5_MV),
635 regulator_desc_s2mps14_ldo(6, MIN_800_MV, STEP_12_5_MV),
636 regulator_desc_s2mps14_ldo(7, MIN_800_MV, STEP_25_MV),
637 regulator_desc_s2mps14_ldo(8, MIN_1800_MV, STEP_25_MV),
638 regulator_desc_s2mps14_ldo(9, MIN_800_MV, STEP_12_5_MV),
639 regulator_desc_s2mps14_ldo(10, MIN_800_MV, STEP_12_5_MV),
640 regulator_desc_s2mps14_ldo(11, MIN_800_MV, STEP_25_MV),
641 regulator_desc_s2mps14_ldo(12, MIN_1800_MV, STEP_25_MV),
642 regulator_desc_s2mps14_ldo(13, MIN_1800_MV, STEP_25_MV),
643 regulator_desc_s2mps14_ldo(14, MIN_1800_MV, STEP_25_MV),
644 regulator_desc_s2mps14_ldo(15, MIN_1800_MV, STEP_25_MV),
645 regulator_desc_s2mps14_ldo(16, MIN_1800_MV, STEP_25_MV),
646 regulator_desc_s2mps14_ldo(17, MIN_1800_MV, STEP_25_MV),
647 regulator_desc_s2mps14_ldo(18, MIN_1800_MV, STEP_25_MV),
648 regulator_desc_s2mps14_ldo(19, MIN_800_MV, STEP_25_MV),
649 regulator_desc_s2mps14_ldo(20, MIN_800_MV, STEP_25_MV),
650 regulator_desc_s2mps14_ldo(21, MIN_800_MV, STEP_25_MV),
651 regulator_desc_s2mps14_ldo(22, MIN_800_MV, STEP_12_5_MV),
652 regulator_desc_s2mps14_ldo(23, MIN_800_MV, STEP_25_MV),
653 regulator_desc_s2mps14_ldo(24, MIN_1800_MV, STEP_25_MV),
654 regulator_desc_s2mps14_ldo(25, MIN_1800_MV, STEP_25_MV),
655 regulator_desc_s2mps14_buck(1, MIN_600_MV, STEP_6_25_MV,
656 S2MPS14_BUCK1235_START_SEL),
657 regulator_desc_s2mps14_buck(2, MIN_600_MV, STEP_6_25_MV,
658 S2MPS14_BUCK1235_START_SEL),
659 regulator_desc_s2mps14_buck(3, MIN_600_MV, STEP_6_25_MV,
660 S2MPS14_BUCK1235_START_SEL),
661 regulator_desc_s2mps14_buck(4, MIN_1400_MV, STEP_12_5_MV,
662 S2MPS14_BUCK4_START_SEL),
663 regulator_desc_s2mps14_buck(5, MIN_600_MV, STEP_6_25_MV,
664 S2MPS14_BUCK1235_START_SEL),
665 };
666
667 static struct regulator_ops s2mps15_reg_ldo_ops = {
668 .list_voltage = regulator_list_voltage_linear_range,
669 .map_voltage = regulator_map_voltage_linear_range,
670 .is_enabled = regulator_is_enabled_regmap,
671 .enable = regulator_enable_regmap,
672 .disable = regulator_disable_regmap,
673 .get_voltage_sel = regulator_get_voltage_sel_regmap,
674 .set_voltage_sel = regulator_set_voltage_sel_regmap,
675 };
676
677 static struct regulator_ops s2mps15_reg_buck_ops = {
678 .list_voltage = regulator_list_voltage_linear_range,
679 .map_voltage = regulator_map_voltage_linear_range,
680 .is_enabled = regulator_is_enabled_regmap,
681 .enable = regulator_enable_regmap,
682 .disable = regulator_disable_regmap,
683 .get_voltage_sel = regulator_get_voltage_sel_regmap,
684 .set_voltage_sel = regulator_set_voltage_sel_regmap,
685 .set_voltage_time_sel = regulator_set_voltage_time_sel,
686 };
687
688 #define regulator_desc_s2mps15_ldo(num, range) { \
689 .name = "LDO"#num, \
690 .id = S2MPS15_LDO##num, \
691 .ops = &s2mps15_reg_ldo_ops, \
692 .type = REGULATOR_VOLTAGE, \
693 .owner = THIS_MODULE, \
694 .linear_ranges = range, \
695 .n_linear_ranges = ARRAY_SIZE(range), \
696 .n_voltages = S2MPS15_LDO_N_VOLTAGES, \
697 .vsel_reg = S2MPS15_REG_L1CTRL + num - 1, \
698 .vsel_mask = S2MPS15_LDO_VSEL_MASK, \
699 .enable_reg = S2MPS15_REG_L1CTRL + num - 1, \
700 .enable_mask = S2MPS15_ENABLE_MASK \
701 }
702
703 #define regulator_desc_s2mps15_buck(num, range) { \
704 .name = "BUCK"#num, \
705 .id = S2MPS15_BUCK##num, \
706 .ops = &s2mps15_reg_buck_ops, \
707 .type = REGULATOR_VOLTAGE, \
708 .owner = THIS_MODULE, \
709 .linear_ranges = range, \
710 .n_linear_ranges = ARRAY_SIZE(range), \
711 .ramp_delay = 12500, \
712 .n_voltages = S2MPS15_BUCK_N_VOLTAGES, \
713 .vsel_reg = S2MPS15_REG_B1CTRL2 + ((num - 1) * 2), \
714 .vsel_mask = S2MPS15_BUCK_VSEL_MASK, \
715 .enable_reg = S2MPS15_REG_B1CTRL1 + ((num - 1) * 2), \
716 .enable_mask = S2MPS15_ENABLE_MASK \
717 }
718
719 /* voltage range for s2mps15 LDO 3, 5, 15, 16, 18, 20, 23 and 27 */
720 static const struct regulator_linear_range s2mps15_ldo_voltage_ranges1[] = {
721 REGULATOR_LINEAR_RANGE(1000000, 0xc, 0x38, 25000),
722 };
723
724 /* voltage range for s2mps15 LDO 2, 6, 14, 17, 19, 21, 24 and 25 */
725 static const struct regulator_linear_range s2mps15_ldo_voltage_ranges2[] = {
726 REGULATOR_LINEAR_RANGE(1800000, 0x0, 0x3f, 25000),
727 };
728
729 /* voltage range for s2mps15 LDO 4, 11, 12, 13, 22 and 26 */
730 static const struct regulator_linear_range s2mps15_ldo_voltage_ranges3[] = {
731 REGULATOR_LINEAR_RANGE(700000, 0x0, 0x34, 12500),
732 };
733
734 /* voltage range for s2mps15 LDO 7, 8, 9 and 10 */
735 static const struct regulator_linear_range s2mps15_ldo_voltage_ranges4[] = {
736 REGULATOR_LINEAR_RANGE(700000, 0xc, 0x18, 25000),
737 };
738
739 /* voltage range for s2mps15 LDO 1 */
740 static const struct regulator_linear_range s2mps15_ldo_voltage_ranges5[] = {
741 REGULATOR_LINEAR_RANGE(500000, 0x0, 0x20, 12500),
742 };
743
744 /* voltage range for s2mps15 BUCK 1, 2, 3, 4, 5, 6 and 7 */
745 static const struct regulator_linear_range s2mps15_buck_voltage_ranges1[] = {
746 REGULATOR_LINEAR_RANGE(500000, 0x20, 0xb0, 6250),
747 };
748
749 /* voltage range for s2mps15 BUCK 8, 9 and 10 */
750 static const struct regulator_linear_range s2mps15_buck_voltage_ranges2[] = {
751 REGULATOR_LINEAR_RANGE(1000000, 0x20, 0xc0, 12500),
752 };
753
754 static const struct regulator_desc s2mps15_regulators[] = {
755 regulator_desc_s2mps15_ldo(1, s2mps15_ldo_voltage_ranges5),
756 regulator_desc_s2mps15_ldo(2, s2mps15_ldo_voltage_ranges2),
757 regulator_desc_s2mps15_ldo(3, s2mps15_ldo_voltage_ranges1),
758 regulator_desc_s2mps15_ldo(4, s2mps15_ldo_voltage_ranges3),
759 regulator_desc_s2mps15_ldo(5, s2mps15_ldo_voltage_ranges1),
760 regulator_desc_s2mps15_ldo(6, s2mps15_ldo_voltage_ranges2),
761 regulator_desc_s2mps15_ldo(7, s2mps15_ldo_voltage_ranges4),
762 regulator_desc_s2mps15_ldo(8, s2mps15_ldo_voltage_ranges4),
763 regulator_desc_s2mps15_ldo(9, s2mps15_ldo_voltage_ranges4),
764 regulator_desc_s2mps15_ldo(10, s2mps15_ldo_voltage_ranges4),
765 regulator_desc_s2mps15_ldo(11, s2mps15_ldo_voltage_ranges3),
766 regulator_desc_s2mps15_ldo(12, s2mps15_ldo_voltage_ranges3),
767 regulator_desc_s2mps15_ldo(13, s2mps15_ldo_voltage_ranges3),
768 regulator_desc_s2mps15_ldo(14, s2mps15_ldo_voltage_ranges2),
769 regulator_desc_s2mps15_ldo(15, s2mps15_ldo_voltage_ranges1),
770 regulator_desc_s2mps15_ldo(16, s2mps15_ldo_voltage_ranges1),
771 regulator_desc_s2mps15_ldo(17, s2mps15_ldo_voltage_ranges2),
772 regulator_desc_s2mps15_ldo(18, s2mps15_ldo_voltage_ranges1),
773 regulator_desc_s2mps15_ldo(19, s2mps15_ldo_voltage_ranges2),
774 regulator_desc_s2mps15_ldo(20, s2mps15_ldo_voltage_ranges1),
775 regulator_desc_s2mps15_ldo(21, s2mps15_ldo_voltage_ranges2),
776 regulator_desc_s2mps15_ldo(22, s2mps15_ldo_voltage_ranges3),
777 regulator_desc_s2mps15_ldo(23, s2mps15_ldo_voltage_ranges1),
778 regulator_desc_s2mps15_ldo(24, s2mps15_ldo_voltage_ranges2),
779 regulator_desc_s2mps15_ldo(25, s2mps15_ldo_voltage_ranges2),
780 regulator_desc_s2mps15_ldo(26, s2mps15_ldo_voltage_ranges3),
781 regulator_desc_s2mps15_ldo(27, s2mps15_ldo_voltage_ranges1),
782 regulator_desc_s2mps15_buck(1, s2mps15_buck_voltage_ranges1),
783 regulator_desc_s2mps15_buck(2, s2mps15_buck_voltage_ranges1),
784 regulator_desc_s2mps15_buck(3, s2mps15_buck_voltage_ranges1),
785 regulator_desc_s2mps15_buck(4, s2mps15_buck_voltage_ranges1),
786 regulator_desc_s2mps15_buck(5, s2mps15_buck_voltage_ranges1),
787 regulator_desc_s2mps15_buck(6, s2mps15_buck_voltage_ranges1),
788 regulator_desc_s2mps15_buck(7, s2mps15_buck_voltage_ranges1),
789 regulator_desc_s2mps15_buck(8, s2mps15_buck_voltage_ranges2),
790 regulator_desc_s2mps15_buck(9, s2mps15_buck_voltage_ranges2),
791 regulator_desc_s2mps15_buck(10, s2mps15_buck_voltage_ranges2),
792 };
793
794 static int s2mps14_pmic_enable_ext_control(struct s2mps11_info *s2mps11,
795 struct regulator_dev *rdev)
796 {
797 return regmap_update_bits(rdev->regmap, rdev->desc->enable_reg,
798 rdev->desc->enable_mask, S2MPS14_ENABLE_EXT_CONTROL);
799 }
800
801 static void s2mps14_pmic_dt_parse_ext_control_gpio(struct platform_device *pdev,
802 struct of_regulator_match *rdata, struct s2mps11_info *s2mps11)
803 {
804 int *gpio = s2mps11->ext_control_gpio;
805 unsigned int i;
806 unsigned int valid_regulators[3] = { S2MPS14_LDO10, S2MPS14_LDO11,
807 S2MPS14_LDO12 };
808
809 for (i = 0; i < ARRAY_SIZE(valid_regulators); i++) {
810 unsigned int reg = valid_regulators[i];
811
812 if (!rdata[reg].init_data || !rdata[reg].of_node)
813 continue;
814
815 gpio[reg] = of_get_named_gpio(rdata[reg].of_node,
816 "samsung,ext-control-gpios", 0);
817 if (gpio_is_valid(gpio[reg]))
818 dev_dbg(&pdev->dev, "Using GPIO %d for ext-control over %d/%s\n",
819 gpio[reg], reg, rdata[reg].name);
820 }
821 }
822
823 static int s2mps11_pmic_dt_parse(struct platform_device *pdev,
824 struct of_regulator_match *rdata, struct s2mps11_info *s2mps11,
825 unsigned int rdev_num)
826 {
827 struct device_node *reg_np;
828
829 reg_np = of_get_child_by_name(pdev->dev.parent->of_node, "regulators");
830 if (!reg_np) {
831 dev_err(&pdev->dev, "could not find regulators sub-node\n");
832 return -EINVAL;
833 }
834
835 of_regulator_match(&pdev->dev, reg_np, rdata, rdev_num);
836 if (s2mps11->dev_type == S2MPS14X)
837 s2mps14_pmic_dt_parse_ext_control_gpio(pdev, rdata, s2mps11);
838
839 of_node_put(reg_np);
840
841 return 0;
842 }
843
844 static int s2mpu02_set_ramp_delay(struct regulator_dev *rdev, int ramp_delay)
845 {
846 unsigned int ramp_val, ramp_shift, ramp_reg;
847
848 switch (rdev_get_id(rdev)) {
849 case S2MPU02_BUCK1:
850 ramp_shift = S2MPU02_BUCK1_RAMP_SHIFT;
851 break;
852 case S2MPU02_BUCK2:
853 ramp_shift = S2MPU02_BUCK2_RAMP_SHIFT;
854 break;
855 case S2MPU02_BUCK3:
856 ramp_shift = S2MPU02_BUCK3_RAMP_SHIFT;
857 break;
858 case S2MPU02_BUCK4:
859 ramp_shift = S2MPU02_BUCK4_RAMP_SHIFT;
860 break;
861 default:
862 return 0;
863 }
864 ramp_reg = S2MPU02_REG_RAMP1;
865 ramp_val = get_ramp_delay(ramp_delay);
866
867 return regmap_update_bits(rdev->regmap, ramp_reg,
868 S2MPU02_BUCK1234_RAMP_MASK << ramp_shift,
869 ramp_val << ramp_shift);
870 }
871
872 static struct regulator_ops s2mpu02_ldo_ops = {
873 .list_voltage = regulator_list_voltage_linear,
874 .map_voltage = regulator_map_voltage_linear,
875 .is_enabled = regulator_is_enabled_regmap,
876 .enable = s2mps14_regulator_enable,
877 .disable = regulator_disable_regmap,
878 .get_voltage_sel = regulator_get_voltage_sel_regmap,
879 .set_voltage_sel = regulator_set_voltage_sel_regmap,
880 .set_voltage_time_sel = regulator_set_voltage_time_sel,
881 .set_suspend_disable = s2mps14_regulator_set_suspend_disable,
882 };
883
884 static struct regulator_ops s2mpu02_buck_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 .set_ramp_delay = s2mpu02_set_ramp_delay,
895 };
896
897 #define regulator_desc_s2mpu02_ldo1(num) { \
898 .name = "LDO"#num, \
899 .id = S2MPU02_LDO##num, \
900 .ops = &s2mpu02_ldo_ops, \
901 .type = REGULATOR_VOLTAGE, \
902 .owner = THIS_MODULE, \
903 .min_uV = S2MPU02_LDO_MIN_900MV, \
904 .uV_step = S2MPU02_LDO_STEP_12_5MV, \
905 .linear_min_sel = S2MPU02_LDO_GROUP1_START_SEL, \
906 .n_voltages = S2MPU02_LDO_N_VOLTAGES, \
907 .vsel_reg = S2MPU02_REG_L1CTRL, \
908 .vsel_mask = S2MPU02_LDO_VSEL_MASK, \
909 .enable_reg = S2MPU02_REG_L1CTRL, \
910 .enable_mask = S2MPU02_ENABLE_MASK \
911 }
912 #define regulator_desc_s2mpu02_ldo2(num) { \
913 .name = "LDO"#num, \
914 .id = S2MPU02_LDO##num, \
915 .ops = &s2mpu02_ldo_ops, \
916 .type = REGULATOR_VOLTAGE, \
917 .owner = THIS_MODULE, \
918 .min_uV = S2MPU02_LDO_MIN_1050MV, \
919 .uV_step = S2MPU02_LDO_STEP_25MV, \
920 .linear_min_sel = S2MPU02_LDO_GROUP2_START_SEL, \
921 .n_voltages = S2MPU02_LDO_N_VOLTAGES, \
922 .vsel_reg = S2MPU02_REG_L2CTRL1, \
923 .vsel_mask = S2MPU02_LDO_VSEL_MASK, \
924 .enable_reg = S2MPU02_REG_L2CTRL1, \
925 .enable_mask = S2MPU02_ENABLE_MASK \
926 }
927 #define regulator_desc_s2mpu02_ldo3(num) { \
928 .name = "LDO"#num, \
929 .id = S2MPU02_LDO##num, \
930 .ops = &s2mpu02_ldo_ops, \
931 .type = REGULATOR_VOLTAGE, \
932 .owner = THIS_MODULE, \
933 .min_uV = S2MPU02_LDO_MIN_900MV, \
934 .uV_step = S2MPU02_LDO_STEP_12_5MV, \
935 .linear_min_sel = S2MPU02_LDO_GROUP1_START_SEL, \
936 .n_voltages = S2MPU02_LDO_N_VOLTAGES, \
937 .vsel_reg = S2MPU02_REG_L3CTRL + num - 3, \
938 .vsel_mask = S2MPU02_LDO_VSEL_MASK, \
939 .enable_reg = S2MPU02_REG_L3CTRL + num - 3, \
940 .enable_mask = S2MPU02_ENABLE_MASK \
941 }
942 #define regulator_desc_s2mpu02_ldo4(num) { \
943 .name = "LDO"#num, \
944 .id = S2MPU02_LDO##num, \
945 .ops = &s2mpu02_ldo_ops, \
946 .type = REGULATOR_VOLTAGE, \
947 .owner = THIS_MODULE, \
948 .min_uV = S2MPU02_LDO_MIN_1050MV, \
949 .uV_step = S2MPU02_LDO_STEP_25MV, \
950 .linear_min_sel = S2MPU02_LDO_GROUP2_START_SEL, \
951 .n_voltages = S2MPU02_LDO_N_VOLTAGES, \
952 .vsel_reg = S2MPU02_REG_L3CTRL + num - 3, \
953 .vsel_mask = S2MPU02_LDO_VSEL_MASK, \
954 .enable_reg = S2MPU02_REG_L3CTRL + num - 3, \
955 .enable_mask = S2MPU02_ENABLE_MASK \
956 }
957 #define regulator_desc_s2mpu02_ldo5(num) { \
958 .name = "LDO"#num, \
959 .id = S2MPU02_LDO##num, \
960 .ops = &s2mpu02_ldo_ops, \
961 .type = REGULATOR_VOLTAGE, \
962 .owner = THIS_MODULE, \
963 .min_uV = S2MPU02_LDO_MIN_1600MV, \
964 .uV_step = S2MPU02_LDO_STEP_50MV, \
965 .linear_min_sel = S2MPU02_LDO_GROUP3_START_SEL, \
966 .n_voltages = S2MPU02_LDO_N_VOLTAGES, \
967 .vsel_reg = S2MPU02_REG_L3CTRL + num - 3, \
968 .vsel_mask = S2MPU02_LDO_VSEL_MASK, \
969 .enable_reg = S2MPU02_REG_L3CTRL + num - 3, \
970 .enable_mask = S2MPU02_ENABLE_MASK \
971 }
972
973 #define regulator_desc_s2mpu02_buck1234(num) { \
974 .name = "BUCK"#num, \
975 .id = S2MPU02_BUCK##num, \
976 .ops = &s2mpu02_buck_ops, \
977 .type = REGULATOR_VOLTAGE, \
978 .owner = THIS_MODULE, \
979 .min_uV = S2MPU02_BUCK1234_MIN_600MV, \
980 .uV_step = S2MPU02_BUCK1234_STEP_6_25MV, \
981 .n_voltages = S2MPU02_BUCK_N_VOLTAGES, \
982 .linear_min_sel = S2MPU02_BUCK1234_START_SEL, \
983 .ramp_delay = S2MPU02_BUCK_RAMP_DELAY, \
984 .vsel_reg = S2MPU02_REG_B1CTRL2 + (num - 1) * 2, \
985 .vsel_mask = S2MPU02_BUCK_VSEL_MASK, \
986 .enable_reg = S2MPU02_REG_B1CTRL1 + (num - 1) * 2, \
987 .enable_mask = S2MPU02_ENABLE_MASK \
988 }
989 #define regulator_desc_s2mpu02_buck5(num) { \
990 .name = "BUCK"#num, \
991 .id = S2MPU02_BUCK##num, \
992 .ops = &s2mpu02_ldo_ops, \
993 .type = REGULATOR_VOLTAGE, \
994 .owner = THIS_MODULE, \
995 .min_uV = S2MPU02_BUCK5_MIN_1081_25MV, \
996 .uV_step = S2MPU02_BUCK5_STEP_6_25MV, \
997 .n_voltages = S2MPU02_BUCK_N_VOLTAGES, \
998 .linear_min_sel = S2MPU02_BUCK5_START_SEL, \
999 .ramp_delay = S2MPU02_BUCK_RAMP_DELAY, \
1000 .vsel_reg = S2MPU02_REG_B5CTRL2, \
1001 .vsel_mask = S2MPU02_BUCK_VSEL_MASK, \
1002 .enable_reg = S2MPU02_REG_B5CTRL1, \
1003 .enable_mask = S2MPU02_ENABLE_MASK \
1004 }
1005 #define regulator_desc_s2mpu02_buck6(num) { \
1006 .name = "BUCK"#num, \
1007 .id = S2MPU02_BUCK##num, \
1008 .ops = &s2mpu02_ldo_ops, \
1009 .type = REGULATOR_VOLTAGE, \
1010 .owner = THIS_MODULE, \
1011 .min_uV = S2MPU02_BUCK6_MIN_1700MV, \
1012 .uV_step = S2MPU02_BUCK6_STEP_2_50MV, \
1013 .n_voltages = S2MPU02_BUCK_N_VOLTAGES, \
1014 .linear_min_sel = S2MPU02_BUCK6_START_SEL, \
1015 .ramp_delay = S2MPU02_BUCK_RAMP_DELAY, \
1016 .vsel_reg = S2MPU02_REG_B6CTRL2, \
1017 .vsel_mask = S2MPU02_BUCK_VSEL_MASK, \
1018 .enable_reg = S2MPU02_REG_B6CTRL1, \
1019 .enable_mask = S2MPU02_ENABLE_MASK \
1020 }
1021 #define regulator_desc_s2mpu02_buck7(num) { \
1022 .name = "BUCK"#num, \
1023 .id = S2MPU02_BUCK##num, \
1024 .ops = &s2mpu02_ldo_ops, \
1025 .type = REGULATOR_VOLTAGE, \
1026 .owner = THIS_MODULE, \
1027 .min_uV = S2MPU02_BUCK7_MIN_900MV, \
1028 .uV_step = S2MPU02_BUCK7_STEP_6_25MV, \
1029 .n_voltages = S2MPU02_BUCK_N_VOLTAGES, \
1030 .linear_min_sel = S2MPU02_BUCK7_START_SEL, \
1031 .ramp_delay = S2MPU02_BUCK_RAMP_DELAY, \
1032 .vsel_reg = S2MPU02_REG_B7CTRL2, \
1033 .vsel_mask = S2MPU02_BUCK_VSEL_MASK, \
1034 .enable_reg = S2MPU02_REG_B7CTRL1, \
1035 .enable_mask = S2MPU02_ENABLE_MASK \
1036 }
1037
1038 static const struct regulator_desc s2mpu02_regulators[] = {
1039 regulator_desc_s2mpu02_ldo1(1),
1040 regulator_desc_s2mpu02_ldo2(2),
1041 regulator_desc_s2mpu02_ldo4(3),
1042 regulator_desc_s2mpu02_ldo5(4),
1043 regulator_desc_s2mpu02_ldo4(5),
1044 regulator_desc_s2mpu02_ldo3(6),
1045 regulator_desc_s2mpu02_ldo3(7),
1046 regulator_desc_s2mpu02_ldo4(8),
1047 regulator_desc_s2mpu02_ldo5(9),
1048 regulator_desc_s2mpu02_ldo3(10),
1049 regulator_desc_s2mpu02_ldo4(11),
1050 regulator_desc_s2mpu02_ldo5(12),
1051 regulator_desc_s2mpu02_ldo5(13),
1052 regulator_desc_s2mpu02_ldo5(14),
1053 regulator_desc_s2mpu02_ldo5(15),
1054 regulator_desc_s2mpu02_ldo5(16),
1055 regulator_desc_s2mpu02_ldo4(17),
1056 regulator_desc_s2mpu02_ldo5(18),
1057 regulator_desc_s2mpu02_ldo3(19),
1058 regulator_desc_s2mpu02_ldo4(20),
1059 regulator_desc_s2mpu02_ldo5(21),
1060 regulator_desc_s2mpu02_ldo5(22),
1061 regulator_desc_s2mpu02_ldo5(23),
1062 regulator_desc_s2mpu02_ldo4(24),
1063 regulator_desc_s2mpu02_ldo5(25),
1064 regulator_desc_s2mpu02_ldo4(26),
1065 regulator_desc_s2mpu02_ldo5(27),
1066 regulator_desc_s2mpu02_ldo5(28),
1067 regulator_desc_s2mpu02_buck1234(1),
1068 regulator_desc_s2mpu02_buck1234(2),
1069 regulator_desc_s2mpu02_buck1234(3),
1070 regulator_desc_s2mpu02_buck1234(4),
1071 regulator_desc_s2mpu02_buck5(5),
1072 regulator_desc_s2mpu02_buck6(6),
1073 regulator_desc_s2mpu02_buck7(7),
1074 };
1075
1076 static int s2mps11_pmic_probe(struct platform_device *pdev)
1077 {
1078 struct sec_pmic_dev *iodev = dev_get_drvdata(pdev->dev.parent);
1079 struct sec_platform_data *pdata = NULL;
1080 struct of_regulator_match *rdata = NULL;
1081 struct regulator_config config = { };
1082 struct s2mps11_info *s2mps11;
1083 unsigned int rdev_num = 0;
1084 int i, ret = 0;
1085 const struct regulator_desc *regulators;
1086
1087 s2mps11 = devm_kzalloc(&pdev->dev, sizeof(struct s2mps11_info),
1088 GFP_KERNEL);
1089 if (!s2mps11)
1090 return -ENOMEM;
1091
1092 s2mps11->dev_type = platform_get_device_id(pdev)->driver_data;
1093 switch (s2mps11->dev_type) {
1094 case S2MPS11X:
1095 rdev_num = ARRAY_SIZE(s2mps11_regulators);
1096 regulators = s2mps11_regulators;
1097 BUILD_BUG_ON(S2MPS_REGULATOR_MAX < ARRAY_SIZE(s2mps11_regulators));
1098 break;
1099 case S2MPS13X:
1100 rdev_num = ARRAY_SIZE(s2mps13_regulators);
1101 regulators = s2mps13_regulators;
1102 BUILD_BUG_ON(S2MPS_REGULATOR_MAX < ARRAY_SIZE(s2mps13_regulators));
1103 break;
1104 case S2MPS14X:
1105 rdev_num = ARRAY_SIZE(s2mps14_regulators);
1106 regulators = s2mps14_regulators;
1107 BUILD_BUG_ON(S2MPS_REGULATOR_MAX < ARRAY_SIZE(s2mps14_regulators));
1108 break;
1109 case S2MPS15X:
1110 rdev_num = ARRAY_SIZE(s2mps15_regulators);
1111 regulators = s2mps15_regulators;
1112 BUILD_BUG_ON(S2MPS_REGULATOR_MAX < ARRAY_SIZE(s2mps15_regulators));
1113 break;
1114 case S2MPU02:
1115 rdev_num = ARRAY_SIZE(s2mpu02_regulators);
1116 regulators = s2mpu02_regulators;
1117 BUILD_BUG_ON(S2MPS_REGULATOR_MAX < ARRAY_SIZE(s2mpu02_regulators));
1118 break;
1119 default:
1120 dev_err(&pdev->dev, "Invalid device type: %u\n",
1121 s2mps11->dev_type);
1122 return -EINVAL;
1123 }
1124
1125 s2mps11->ext_control_gpio = devm_kmalloc(&pdev->dev,
1126 sizeof(*s2mps11->ext_control_gpio) * rdev_num,
1127 GFP_KERNEL);
1128 if (!s2mps11->ext_control_gpio)
1129 return -ENOMEM;
1130 /*
1131 * 0 is a valid GPIO so initialize all GPIO-s to negative value
1132 * to indicate that external control won't be used for this regulator.
1133 */
1134 for (i = 0; i < rdev_num; i++)
1135 s2mps11->ext_control_gpio[i] = -EINVAL;
1136
1137 if (!iodev->dev->of_node) {
1138 if (iodev->pdata) {
1139 pdata = iodev->pdata;
1140 goto common_reg;
1141 } else {
1142 dev_err(pdev->dev.parent,
1143 "Platform data or DT node not supplied\n");
1144 return -ENODEV;
1145 }
1146 }
1147
1148 rdata = kzalloc(sizeof(*rdata) * rdev_num, GFP_KERNEL);
1149 if (!rdata)
1150 return -ENOMEM;
1151
1152 for (i = 0; i < rdev_num; i++)
1153 rdata[i].name = regulators[i].name;
1154
1155 ret = s2mps11_pmic_dt_parse(pdev, rdata, s2mps11, rdev_num);
1156 if (ret)
1157 goto out;
1158
1159 common_reg:
1160 platform_set_drvdata(pdev, s2mps11);
1161
1162 config.dev = &pdev->dev;
1163 config.regmap = iodev->regmap_pmic;
1164 config.driver_data = s2mps11;
1165 config.ena_gpio_flags = GPIOF_OUT_INIT_HIGH;
1166 config.ena_gpio_initialized = true;
1167 for (i = 0; i < rdev_num; i++) {
1168 struct regulator_dev *regulator;
1169
1170 if (pdata) {
1171 config.init_data = pdata->regulators[i].initdata;
1172 config.of_node = pdata->regulators[i].reg_node;
1173 } else {
1174 config.init_data = rdata[i].init_data;
1175 config.of_node = rdata[i].of_node;
1176 }
1177 config.ena_gpio = s2mps11->ext_control_gpio[i];
1178
1179 regulator = devm_regulator_register(&pdev->dev,
1180 &regulators[i], &config);
1181 if (IS_ERR(regulator)) {
1182 ret = PTR_ERR(regulator);
1183 dev_err(&pdev->dev, "regulator init failed for %d\n",
1184 i);
1185 goto out;
1186 }
1187
1188 if (gpio_is_valid(s2mps11->ext_control_gpio[i])) {
1189 ret = s2mps14_pmic_enable_ext_control(s2mps11,
1190 regulator);
1191 if (ret < 0) {
1192 dev_err(&pdev->dev,
1193 "failed to enable GPIO control over %s: %d\n",
1194 regulator->desc->name, ret);
1195 goto out;
1196 }
1197 }
1198 }
1199
1200 out:
1201 kfree(rdata);
1202
1203 return ret;
1204 }
1205
1206 static const struct platform_device_id s2mps11_pmic_id[] = {
1207 { "s2mps11-regulator", S2MPS11X},
1208 { "s2mps13-regulator", S2MPS13X},
1209 { "s2mps14-regulator", S2MPS14X},
1210 { "s2mps15-regulator", S2MPS15X},
1211 { "s2mpu02-regulator", S2MPU02},
1212 { },
1213 };
1214 MODULE_DEVICE_TABLE(platform, s2mps11_pmic_id);
1215
1216 static struct platform_driver s2mps11_pmic_driver = {
1217 .driver = {
1218 .name = "s2mps11-pmic",
1219 },
1220 .probe = s2mps11_pmic_probe,
1221 .id_table = s2mps11_pmic_id,
1222 };
1223
1224 static int __init s2mps11_pmic_init(void)
1225 {
1226 return platform_driver_register(&s2mps11_pmic_driver);
1227 }
1228 subsys_initcall(s2mps11_pmic_init);
1229
1230 static void __exit s2mps11_pmic_exit(void)
1231 {
1232 platform_driver_unregister(&s2mps11_pmic_driver);
1233 }
1234 module_exit(s2mps11_pmic_exit);
1235
1236 /* Module information */
1237 MODULE_AUTHOR("Sangbeom Kim <sbkim73@samsung.com>");
1238 MODULE_DESCRIPTION("SAMSUNG S2MPS11/S2MPS14/S2MPS15/S2MPU02 Regulator Driver");
1239 MODULE_LICENSE("GPL");
Linux kernel - Deliverables
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