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mfd: sec-core: Add support for S2MPS13 device
[linux-2.6-block.git] / drivers / regulator / s2mps11.c
CommitLineData
cb74685e
SK		 1/*
2 * s2mps11.c
3 *
15f77300 4 * Copyright (c) 2012-2014 Samsung Electronics Co., Ltd
cb74685e
SK		 5 * http://www.samsung.com
6 *
15f77300
KK		 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.
cb74685e
SK		 16 *
17 */
18
19#include <linux/bug.h>
cb74685e
SK		 20#include <linux/err.h>
21#include <linux/gpio.h>
22#include <linux/slab.h>
23#include <linux/module.h>
a50c6b32 24#include <linux/of.h>
939c0277 25#include <linux/regmap.h>
cb74685e
SK		 26#include <linux/platform_device.h>
27#include <linux/regulator/driver.h>
28#include <linux/regulator/machine.h>
a50c6b32 29#include <linux/regulator/of_regulator.h>
97f53d71 30#include <linux/of_gpio.h>
cb74685e
SK		 31#include <linux/mfd/samsung/core.h>
32#include <linux/mfd/samsung/s2mps11.h>
15f77300 33#include <linux/mfd/samsung/s2mps14.h>
00e2573d 34#include <linux/mfd/samsung/s2mpu02.h>
a50c6b32 35
cb74685e 36struct s2mps11_info {
3e80f95b 37 unsigned int rdev_num;
cb74685e
SK		 38 int ramp_delay2;
39 int ramp_delay34;
40 int ramp_delay5;
41 int ramp_delay16;
42 int ramp_delay7810;
43 int ramp_delay9;
00e2573d
CC		 44
45 enum sec_device_type dev_type;
46
05be09bb 47 /*
00e2573d 48 * One bit for each S2MPS14/S2MPU02 regulator whether the suspend mode
05be09bb
KK		 49 * was enabled.
50 */
00e2573d
CC		 51 unsigned long long s2mps14_suspend_state:35;
52
97f53d71
KK		 53 /* Array of size rdev_num with GPIO-s for external sleep control */
54 int *ext_control_gpio;
cb74685e
SK		 55};
56
57static int get_ramp_delay(int ramp_delay)
58{
59 unsigned char cnt = 0;
60
90068348 61 ramp_delay /= 6250;
cb74685e
SK		 62
63 while (true) {
64 ramp_delay = ramp_delay >> 1;
65 if (ramp_delay == 0)
66 break;
67 cnt++;
68 }
f8f1d48b
AL		 69
70 if (cnt > 3)
71 cnt = 3;
72
cb74685e
SK		 73 return cnt;
74}
75
1e1598ed
YSB		 76static int s2mps11_regulator_set_voltage_time_sel(struct regulator_dev *rdev,
77 unsigned int old_selector,
78 unsigned int new_selector)
79{
80 struct s2mps11_info *s2mps11 = rdev_get_drvdata(rdev);
81 unsigned int ramp_delay = 0;
82 int old_volt, new_volt;
83
d55efa4d 84 switch (rdev_get_id(rdev)) {
1e1598ed 85 case S2MPS11_BUCK2:
1e1598ed
YSB		 86 ramp_delay = s2mps11->ramp_delay2;
87 break;
88 case S2MPS11_BUCK3:
1e1598ed 89 case S2MPS11_BUCK4:
1e1598ed
YSB		 90 ramp_delay = s2mps11->ramp_delay34;
91 break;
92 case S2MPS11_BUCK5:
93 ramp_delay = s2mps11->ramp_delay5;
94 break;
95 case S2MPS11_BUCK6:
1e1598ed
YSB		 96 case S2MPS11_BUCK1:
97 ramp_delay = s2mps11->ramp_delay16;
98 break;
99 case S2MPS11_BUCK7:
100 case S2MPS11_BUCK8:
101 case S2MPS11_BUCK10:
102 ramp_delay = s2mps11->ramp_delay7810;
103 break;
104 case S2MPS11_BUCK9:
105 ramp_delay = s2mps11->ramp_delay9;
106 }
107
108 if (ramp_delay == 0)
109 ramp_delay = rdev->desc->ramp_delay;
110
111 old_volt = rdev->desc->min_uV + (rdev->desc->uV_step * old_selector);
112 new_volt = rdev->desc->min_uV + (rdev->desc->uV_step * new_selector);
113
114 return DIV_ROUND_UP(abs(new_volt - old_volt), ramp_delay);
115}
116
939c0277
YSB		 117static int s2mps11_set_ramp_delay(struct regulator_dev *rdev, int ramp_delay)
118{
119 struct s2mps11_info *s2mps11 = rdev_get_drvdata(rdev);
120 unsigned int ramp_val, ramp_shift, ramp_reg = S2MPS11_REG_RAMP_BUCK;
121 unsigned int ramp_enable = 1, enable_shift = 0;
122 int ret;
123
d55efa4d 124 switch (rdev_get_id(rdev)) {
939c0277
YSB		 125 case S2MPS11_BUCK1:
126 if (ramp_delay > s2mps11->ramp_delay16)
127 s2mps11->ramp_delay16 = ramp_delay;
128 else
129 ramp_delay = s2mps11->ramp_delay16;
130
131 ramp_shift = S2MPS11_BUCK16_RAMP_SHIFT;
132 break;
133 case S2MPS11_BUCK2:
134 enable_shift = S2MPS11_BUCK2_RAMP_EN_SHIFT;
135 if (!ramp_delay) {
136 ramp_enable = 0;
137 break;
138 }
139
140 s2mps11->ramp_delay2 = ramp_delay;
141 ramp_shift = S2MPS11_BUCK2_RAMP_SHIFT;
142 ramp_reg = S2MPS11_REG_RAMP;
143 break;
144 case S2MPS11_BUCK3:
145 enable_shift = S2MPS11_BUCK3_RAMP_EN_SHIFT;
146 if (!ramp_delay) {
147 ramp_enable = 0;
148 break;
149 }
150
151 if (ramp_delay > s2mps11->ramp_delay34)
152 s2mps11->ramp_delay34 = ramp_delay;
153 else
154 ramp_delay = s2mps11->ramp_delay34;
155
156 ramp_shift = S2MPS11_BUCK34_RAMP_SHIFT;
157 ramp_reg = S2MPS11_REG_RAMP;
158 break;
159 case S2MPS11_BUCK4:
160 enable_shift = S2MPS11_BUCK4_RAMP_EN_SHIFT;
161 if (!ramp_delay) {
162 ramp_enable = 0;
163 break;
164 }
165
166 if (ramp_delay > s2mps11->ramp_delay34)
167 s2mps11->ramp_delay34 = ramp_delay;
168 else
169 ramp_delay = s2mps11->ramp_delay34;
170
171 ramp_shift = S2MPS11_BUCK34_RAMP_SHIFT;
172 ramp_reg = S2MPS11_REG_RAMP;
173 break;
174 case S2MPS11_BUCK5:
175 s2mps11->ramp_delay5 = ramp_delay;
176 ramp_shift = S2MPS11_BUCK5_RAMP_SHIFT;
177 break;
178 case S2MPS11_BUCK6:
179 enable_shift = S2MPS11_BUCK6_RAMP_EN_SHIFT;
180 if (!ramp_delay) {
181 ramp_enable = 0;
182 break;
183 }
184
185 if (ramp_delay > s2mps11->ramp_delay16)
186 s2mps11->ramp_delay16 = ramp_delay;
187 else
188 ramp_delay = s2mps11->ramp_delay16;
189
190 ramp_shift = S2MPS11_BUCK16_RAMP_SHIFT;
191 break;
192 case S2MPS11_BUCK7:
193 case S2MPS11_BUCK8:
194 case S2MPS11_BUCK10:
195 if (ramp_delay > s2mps11->ramp_delay7810)
196 s2mps11->ramp_delay7810 = ramp_delay;
197 else
198 ramp_delay = s2mps11->ramp_delay7810;
199
200 ramp_shift = S2MPS11_BUCK7810_RAMP_SHIFT;
201 break;
202 case S2MPS11_BUCK9:
203 s2mps11->ramp_delay9 = ramp_delay;
204 ramp_shift = S2MPS11_BUCK9_RAMP_SHIFT;
205 break;
206 default:
207 return 0;
208 }
209
210 if (!ramp_enable)
211 goto ramp_disable;
212
b203e0df
KK		 213 /* Ramp delay can be enabled/disabled only for buck[2346] */
214 if ((rdev_get_id(rdev) >= S2MPS11_BUCK2 &&
215 rdev_get_id(rdev) <= S2MPS11_BUCK4) ||
216 rdev_get_id(rdev) == S2MPS11_BUCK6) {
217 ret = regmap_update_bits(rdev->regmap, S2MPS11_REG_RAMP,
218 1 << enable_shift, 1 << enable_shift);
219 if (ret) {
220 dev_err(&rdev->dev, "failed to enable ramp rate\n");
221 return ret;
222 }
939c0277
YSB		 223 }
224
225 ramp_val = get_ramp_delay(ramp_delay);
226
f8f1d48b
AL		 227 return regmap_update_bits(rdev->regmap, ramp_reg, 0x3 << ramp_shift,
228 ramp_val << ramp_shift);
939c0277
YSB		 229
230ramp_disable:
80853304
AL		 231 return regmap_update_bits(rdev->regmap, S2MPS11_REG_RAMP,
232 1 << enable_shift, 0);
939c0277
YSB		 233}
234
cb74685e
SK		 235static struct regulator_ops s2mps11_ldo_ops = {
236 .list_voltage = regulator_list_voltage_linear,
237 .map_voltage = regulator_map_voltage_linear,
238 .is_enabled = regulator_is_enabled_regmap,
239 .enable = regulator_enable_regmap,
240 .disable = regulator_disable_regmap,
241 .get_voltage_sel = regulator_get_voltage_sel_regmap,
242 .set_voltage_sel = regulator_set_voltage_sel_regmap,
243 .set_voltage_time_sel = regulator_set_voltage_time_sel,
244};
245
246static struct regulator_ops s2mps11_buck_ops = {
247 .list_voltage = regulator_list_voltage_linear,
248 .map_voltage = regulator_map_voltage_linear,
249 .is_enabled = regulator_is_enabled_regmap,
250 .enable = regulator_enable_regmap,
251 .disable = regulator_disable_regmap,
252 .get_voltage_sel = regulator_get_voltage_sel_regmap,
253 .set_voltage_sel = regulator_set_voltage_sel_regmap,
1e1598ed 254 .set_voltage_time_sel = s2mps11_regulator_set_voltage_time_sel,
939c0277 255 .set_ramp_delay = s2mps11_set_ramp_delay,
cb74685e
SK		 256};
257
5a867cf2 258#define regulator_desc_s2mps11_ldo(num, step) { \
cb74685e
SK		 259 .name = "LDO"#num, \
260 .id = S2MPS11_LDO##num, \
261 .ops = &s2mps11_ldo_ops, \
262 .type = REGULATOR_VOLTAGE, \
263 .owner = THIS_MODULE, \
0e4f4178 264 .min_uV = MIN_800_MV, \
5a867cf2 265 .uV_step = step, \
cb74685e
SK		 266 .n_voltages = S2MPS11_LDO_N_VOLTAGES, \
267 .vsel_reg = S2MPS11_REG_L1CTRL + num - 1, \
2693fcab 268 .vsel_mask = S2MPS11_LDO_VSEL_MASK, \
cb74685e
SK		 269 .enable_reg = S2MPS11_REG_L1CTRL + num - 1, \
270 .enable_mask = S2MPS11_ENABLE_MASK \
271}
272
15f77300 273#define regulator_desc_s2mps11_buck1_4(num) { \
cb74685e
SK		 274 .name = "BUCK"#num, \
275 .id = S2MPS11_BUCK##num, \
276 .ops = &s2mps11_buck_ops, \
277 .type = REGULATOR_VOLTAGE, \
278 .owner = THIS_MODULE, \
0e4f4178
ADK		 279 .min_uV = MIN_600_MV, \
280 .uV_step = STEP_6_25_MV, \
cb74685e 281 .n_voltages = S2MPS11_BUCK_N_VOLTAGES, \
90068348 282 .ramp_delay = S2MPS11_RAMP_DELAY, \
cb74685e 283 .vsel_reg = S2MPS11_REG_B1CTRL2 + (num - 1) * 2, \
2693fcab 284 .vsel_mask = S2MPS11_BUCK_VSEL_MASK, \
cb74685e
SK		 285 .enable_reg = S2MPS11_REG_B1CTRL1 + (num - 1) * 2, \
286 .enable_mask = S2MPS11_ENABLE_MASK \
287}
288
15f77300 289#define regulator_desc_s2mps11_buck5 { \
cb74685e
SK		 290 .name = "BUCK5", \
291 .id = S2MPS11_BUCK5, \
292 .ops = &s2mps11_buck_ops, \
293 .type = REGULATOR_VOLTAGE, \
294 .owner = THIS_MODULE, \
0e4f4178
ADK		 295 .min_uV = MIN_600_MV, \
296 .uV_step = STEP_6_25_MV, \
cb74685e 297 .n_voltages = S2MPS11_BUCK_N_VOLTAGES, \
90068348 298 .ramp_delay = S2MPS11_RAMP_DELAY, \
cb74685e 299 .vsel_reg = S2MPS11_REG_B5CTRL2, \
2693fcab 300 .vsel_mask = S2MPS11_BUCK_VSEL_MASK, \
cb74685e
SK		 301 .enable_reg = S2MPS11_REG_B5CTRL1, \
302 .enable_mask = S2MPS11_ENABLE_MASK \
303}
304
5a867cf2 305#define regulator_desc_s2mps11_buck6_10(num, min, step) { \
cb74685e
SK		 306 .name = "BUCK"#num, \
307 .id = S2MPS11_BUCK##num, \
308 .ops = &s2mps11_buck_ops, \
309 .type = REGULATOR_VOLTAGE, \
310 .owner = THIS_MODULE, \
5a867cf2
ADK		 311 .min_uV = min, \
312 .uV_step = step, \
cb74685e 313 .n_voltages = S2MPS11_BUCK_N_VOLTAGES, \
90068348 314 .ramp_delay = S2MPS11_RAMP_DELAY, \
cb74685e 315 .vsel_reg = S2MPS11_REG_B6CTRL2 + (num - 6) * 2, \
2693fcab 316 .vsel_mask = S2MPS11_BUCK_VSEL_MASK, \
cb74685e
SK		 317 .enable_reg = S2MPS11_REG_B6CTRL1 + (num - 6) * 2, \
318 .enable_mask = S2MPS11_ENABLE_MASK \
319}
320
0f4cc282 321static const struct regulator_desc s2mps11_regulators[] = {
5a867cf2
ADK		 322 regulator_desc_s2mps11_ldo(1, STEP_25_MV),
323 regulator_desc_s2mps11_ldo(2, STEP_50_MV),
324 regulator_desc_s2mps11_ldo(3, STEP_50_MV),
325 regulator_desc_s2mps11_ldo(4, STEP_50_MV),
326 regulator_desc_s2mps11_ldo(5, STEP_50_MV),
327 regulator_desc_s2mps11_ldo(6, STEP_25_MV),
328 regulator_desc_s2mps11_ldo(7, STEP_50_MV),
329 regulator_desc_s2mps11_ldo(8, STEP_50_MV),
330 regulator_desc_s2mps11_ldo(9, STEP_50_MV),
331 regulator_desc_s2mps11_ldo(10, STEP_50_MV),
332 regulator_desc_s2mps11_ldo(11, STEP_25_MV),
333 regulator_desc_s2mps11_ldo(12, STEP_50_MV),
334 regulator_desc_s2mps11_ldo(13, STEP_50_MV),
335 regulator_desc_s2mps11_ldo(14, STEP_50_MV),
336 regulator_desc_s2mps11_ldo(15, STEP_50_MV),
337 regulator_desc_s2mps11_ldo(16, STEP_50_MV),
338 regulator_desc_s2mps11_ldo(17, STEP_50_MV),
339 regulator_desc_s2mps11_ldo(18, STEP_50_MV),
340 regulator_desc_s2mps11_ldo(19, STEP_50_MV),
341 regulator_desc_s2mps11_ldo(20, STEP_50_MV),
342 regulator_desc_s2mps11_ldo(21, STEP_50_MV),
343 regulator_desc_s2mps11_ldo(22, STEP_25_MV),
344 regulator_desc_s2mps11_ldo(23, STEP_25_MV),
345 regulator_desc_s2mps11_ldo(24, STEP_50_MV),
346 regulator_desc_s2mps11_ldo(25, STEP_50_MV),
347 regulator_desc_s2mps11_ldo(26, STEP_50_MV),
348 regulator_desc_s2mps11_ldo(27, STEP_25_MV),
349 regulator_desc_s2mps11_ldo(28, STEP_50_MV),
350 regulator_desc_s2mps11_ldo(29, STEP_50_MV),
351 regulator_desc_s2mps11_ldo(30, STEP_50_MV),
352 regulator_desc_s2mps11_ldo(31, STEP_50_MV),
353 regulator_desc_s2mps11_ldo(32, STEP_50_MV),
354 regulator_desc_s2mps11_ldo(33, STEP_50_MV),
355 regulator_desc_s2mps11_ldo(34, STEP_50_MV),
356 regulator_desc_s2mps11_ldo(35, STEP_50_MV),
357 regulator_desc_s2mps11_ldo(36, STEP_50_MV),
358 regulator_desc_s2mps11_ldo(37, STEP_50_MV),
359 regulator_desc_s2mps11_ldo(38, STEP_50_MV),
15f77300
KK		 360 regulator_desc_s2mps11_buck1_4(1),
361 regulator_desc_s2mps11_buck1_4(2),
362 regulator_desc_s2mps11_buck1_4(3),
363 regulator_desc_s2mps11_buck1_4(4),
364 regulator_desc_s2mps11_buck5,
5a867cf2
ADK		 365 regulator_desc_s2mps11_buck6_10(6, MIN_600_MV, STEP_6_25_MV),
366 regulator_desc_s2mps11_buck6_10(7, MIN_600_MV, STEP_6_25_MV),
367 regulator_desc_s2mps11_buck6_10(8, MIN_600_MV, STEP_6_25_MV),
368 regulator_desc_s2mps11_buck6_10(9, MIN_3000_MV, STEP_25_MV),
369 regulator_desc_s2mps11_buck6_10(10, MIN_750_MV, STEP_12_5_MV),
15f77300
KK		 370};
371
05be09bb
KK		 372static int s2mps14_regulator_enable(struct regulator_dev *rdev)
373{
374 struct s2mps11_info *s2mps11 = rdev_get_drvdata(rdev);
375 unsigned int val;
376
00e2573d
CC		 377 switch (s2mps11->dev_type) {
378 case S2MPS14X:
379 if (s2mps11->s2mps14_suspend_state & (1 << rdev_get_id(rdev)))
380 val = S2MPS14_ENABLE_SUSPEND;
381 else if (gpio_is_valid(s2mps11->ext_control_gpio[rdev_get_id(rdev)]))
382 val = S2MPS14_ENABLE_EXT_CONTROL;
383 else
384 val = rdev->desc->enable_mask;
385 break;
386 case S2MPU02:
387 if (s2mps11->s2mps14_suspend_state & (1 << rdev_get_id(rdev)))
388 val = S2MPU02_ENABLE_SUSPEND;
389 else
390 val = rdev->desc->enable_mask;
391 break;
392 default:
393 return -EINVAL;
394 };
05be09bb
KK		 395
396 return regmap_update_bits(rdev->regmap, rdev->desc->enable_reg,
397 rdev->desc->enable_mask, val);
398}
399
400static int s2mps14_regulator_set_suspend_disable(struct regulator_dev *rdev)
401{
402 int ret;
00e2573d 403 unsigned int val, state;
05be09bb 404 struct s2mps11_info *s2mps11 = rdev_get_drvdata(rdev);
00e2573d 405 int rdev_id = rdev_get_id(rdev);
05be09bb 406
00e2573d
CC		 407 /* Below LDO should be always on or does not support suspend mode. */
408 switch (s2mps11->dev_type) {
409 case S2MPS14X:
410 switch (rdev_id) {
411 case S2MPS14_LDO3:
412 return 0;
413 default:
414 state = S2MPS14_ENABLE_SUSPEND;
415 break;
416 };
417 break;
418 case S2MPU02:
419 switch (rdev_id) {
420 case S2MPU02_LDO13:
421 case S2MPU02_LDO14:
422 case S2MPU02_LDO15:
423 case S2MPU02_LDO17:
424 case S2MPU02_BUCK7:
425 state = S2MPU02_DISABLE_SUSPEND;
426 break;
427 default:
428 state = S2MPU02_ENABLE_SUSPEND;
429 break;
430 };
431 break;
432 default:
433 return -EINVAL;
434 };
05be09bb
KK		 435
436 ret = regmap_read(rdev->regmap, rdev->desc->enable_reg, &val);
437 if (ret < 0)
438 return ret;
439
440 s2mps11->s2mps14_suspend_state |= (1 << rdev_get_id(rdev));
441 /*
442 * Don't enable suspend mode if regulator is already disabled because
443 * this would effectively for a short time turn on the regulator after
444 * resuming.
445 * However we still want to toggle the suspend_state bit for regulator
446 * in case if it got enabled before suspending the system.
447 */
448 if (!(val & rdev->desc->enable_mask))
449 return 0;
450
451 return regmap_update_bits(rdev->regmap, rdev->desc->enable_reg,
00e2573d 452 rdev->desc->enable_mask, state);
05be09bb
KK		 453}
454
15f77300
KK		 455static struct regulator_ops s2mps14_reg_ops = {
456 .list_voltage = regulator_list_voltage_linear,
457 .map_voltage = regulator_map_voltage_linear,
458 .is_enabled = regulator_is_enabled_regmap,
05be09bb 459 .enable = s2mps14_regulator_enable,
15f77300
KK		 460 .disable = regulator_disable_regmap,
461 .get_voltage_sel = regulator_get_voltage_sel_regmap,
462 .set_voltage_sel = regulator_set_voltage_sel_regmap,
463 .set_voltage_time_sel = regulator_set_voltage_time_sel,
05be09bb 464 .set_suspend_disable = s2mps14_regulator_set_suspend_disable,
15f77300
KK		 465};
466
5a867cf2 467#define regulator_desc_s2mps14_ldo(num, min, step) { \
15f77300
KK		 468 .name = "LDO"#num, \
469 .id = S2MPS14_LDO##num, \
470 .ops = &s2mps14_reg_ops, \
471 .type = REGULATOR_VOLTAGE, \
472 .owner = THIS_MODULE, \
5a867cf2
ADK		 473 .min_uV = min, \
474 .uV_step = step, \
15f77300
KK		 475 .n_voltages = S2MPS14_LDO_N_VOLTAGES, \
476 .vsel_reg = S2MPS14_REG_L1CTRL + num - 1, \
477 .vsel_mask = S2MPS14_LDO_VSEL_MASK, \
478 .enable_reg = S2MPS14_REG_L1CTRL + num - 1, \
479 .enable_mask = S2MPS14_ENABLE_MASK \
480}
5a867cf2
ADK		 481
482#define regulator_desc_s2mps14_buck(num, min, step) { \
15f77300
KK		 483 .name = "BUCK"#num, \
484 .id = S2MPS14_BUCK##num, \
485 .ops = &s2mps14_reg_ops, \
486 .type = REGULATOR_VOLTAGE, \
487 .owner = THIS_MODULE, \
5a867cf2
ADK		 488 .min_uV = min, \
489 .uV_step = step, \
15f77300
KK		 490 .n_voltages = S2MPS14_BUCK_N_VOLTAGES, \
491 .linear_min_sel = S2MPS14_BUCK1235_START_SEL, \
492 .ramp_delay = S2MPS14_BUCK_RAMP_DELAY, \
493 .vsel_reg = S2MPS14_REG_B1CTRL2 + (num - 1) * 2, \
494 .vsel_mask = S2MPS14_BUCK_VSEL_MASK, \
495 .enable_reg = S2MPS14_REG_B1CTRL1 + (num - 1) * 2, \
496 .enable_mask = S2MPS14_ENABLE_MASK \
497}
15f77300
KK		 498
499static const struct regulator_desc s2mps14_regulators[] = {
5a867cf2
ADK		 500 regulator_desc_s2mps14_ldo(1, MIN_800_MV, STEP_12_5_MV),
501 regulator_desc_s2mps14_ldo(2, MIN_800_MV, STEP_12_5_MV),
502 regulator_desc_s2mps14_ldo(3, MIN_800_MV, STEP_25_MV),
503 regulator_desc_s2mps14_ldo(4, MIN_800_MV, STEP_25_MV),
504 regulator_desc_s2mps14_ldo(5, MIN_800_MV, STEP_12_5_MV),
505 regulator_desc_s2mps14_ldo(6, MIN_800_MV, STEP_12_5_MV),
506 regulator_desc_s2mps14_ldo(7, MIN_800_MV, STEP_25_MV),
507 regulator_desc_s2mps14_ldo(8, MIN_1800_MV, STEP_25_MV),
508 regulator_desc_s2mps14_ldo(9, MIN_800_MV, STEP_12_5_MV),
509 regulator_desc_s2mps14_ldo(10, MIN_800_MV, STEP_12_5_MV),
510 regulator_desc_s2mps14_ldo(11, MIN_800_MV, STEP_25_MV),
511 regulator_desc_s2mps14_ldo(12, MIN_1800_MV, STEP_25_MV),
512 regulator_desc_s2mps14_ldo(13, MIN_1800_MV, STEP_25_MV),
513 regulator_desc_s2mps14_ldo(14, MIN_1800_MV, STEP_25_MV),
514 regulator_desc_s2mps14_ldo(15, MIN_1800_MV, STEP_25_MV),
515 regulator_desc_s2mps14_ldo(16, MIN_1800_MV, STEP_25_MV),
516 regulator_desc_s2mps14_ldo(17, MIN_1800_MV, STEP_25_MV),
517 regulator_desc_s2mps14_ldo(18, MIN_1800_MV, STEP_25_MV),
518 regulator_desc_s2mps14_ldo(19, MIN_800_MV, STEP_25_MV),
519 regulator_desc_s2mps14_ldo(20, MIN_800_MV, STEP_25_MV),
520 regulator_desc_s2mps14_ldo(21, MIN_800_MV, STEP_25_MV),
521 regulator_desc_s2mps14_ldo(22, MIN_800_MV, STEP_12_5_MV),
522 regulator_desc_s2mps14_ldo(23, MIN_800_MV, STEP_25_MV),
523 regulator_desc_s2mps14_ldo(24, MIN_1800_MV, STEP_25_MV),
524 regulator_desc_s2mps14_ldo(25, MIN_1800_MV, STEP_25_MV),
525 regulator_desc_s2mps14_buck(1, MIN_600_MV, STEP_6_25_MV),
526 regulator_desc_s2mps14_buck(2, MIN_600_MV, STEP_6_25_MV),
527 regulator_desc_s2mps14_buck(3, MIN_600_MV, STEP_6_25_MV),
528 regulator_desc_s2mps14_buck(4, MIN_1400_MV, STEP_12_5_MV),
529 regulator_desc_s2mps14_buck(5, MIN_600_MV, STEP_6_25_MV),
cb74685e
SK		 530};
531
97f53d71
KK		 532static int s2mps14_pmic_enable_ext_control(struct s2mps11_info *s2mps11,
533 struct regulator_dev *rdev)
534{
535 return regmap_update_bits(rdev->regmap, rdev->desc->enable_reg,
536 rdev->desc->enable_mask, S2MPS14_ENABLE_EXT_CONTROL);
537}
538
539static void s2mps14_pmic_dt_parse_ext_control_gpio(struct platform_device *pdev,
01170383 540 struct of_regulator_match *rdata, struct s2mps11_info *s2mps11)
97f53d71
KK		 541{
542 int *gpio = s2mps11->ext_control_gpio;
543 unsigned int i;
544 unsigned int valid_regulators[3] = { S2MPS14_LDO10, S2MPS14_LDO11,
545 S2MPS14_LDO12 };
546
547 for (i = 0; i < ARRAY_SIZE(valid_regulators); i++) {
548 unsigned int reg = valid_regulators[i];
549
550 if (!rdata[reg].init_data || !rdata[reg].of_node)
551 continue;
552
553 gpio[reg] = of_get_named_gpio(rdata[reg].of_node,
554 "samsung,ext-control-gpios", 0);
de5d0563 555 if (gpio_is_valid(gpio[reg]))
97f53d71
KK		 556 dev_dbg(&pdev->dev, "Using GPIO %d for ext-control over %d/%s\n",
557 gpio[reg], reg, rdata[reg].name);
558 }
559}
560
561static int s2mps11_pmic_dt_parse(struct platform_device *pdev,
00e2573d 562 struct of_regulator_match *rdata, struct s2mps11_info *s2mps11)
01170383
KK		 563{
564 struct device_node *reg_np;
565
566 reg_np = of_get_child_by_name(pdev->dev.parent->of_node, "regulators");
567 if (!reg_np) {
568 dev_err(&pdev->dev, "could not find regulators sub-node\n");
569 return -EINVAL;
570 }
571
572 of_regulator_match(&pdev->dev, reg_np, rdata, s2mps11->rdev_num);
00e2573d 573 if (s2mps11->dev_type == S2MPS14X)
97f53d71
KK		 574 s2mps14_pmic_dt_parse_ext_control_gpio(pdev, rdata, s2mps11);
575
01170383
KK		 576 of_node_put(reg_np);
577
578 return 0;
579}
580
00e2573d
CC		 581static int s2mpu02_set_ramp_delay(struct regulator_dev *rdev, int ramp_delay)
582{
583 unsigned int ramp_val, ramp_shift, ramp_reg;
584
585 switch (rdev_get_id(rdev)) {
586 case S2MPU02_BUCK1:
587 ramp_shift = S2MPU02_BUCK1_RAMP_SHIFT;
588 break;
589 case S2MPU02_BUCK2:
590 ramp_shift = S2MPU02_BUCK2_RAMP_SHIFT;
591 break;
592 case S2MPU02_BUCK3:
593 ramp_shift = S2MPU02_BUCK3_RAMP_SHIFT;
594 break;
595 case S2MPU02_BUCK4:
596 ramp_shift = S2MPU02_BUCK4_RAMP_SHIFT;
597 break;
598 default:
599 return 0;
600 }
601 ramp_reg = S2MPU02_REG_RAMP1;
602 ramp_val = get_ramp_delay(ramp_delay);
603
604 return regmap_update_bits(rdev->regmap, ramp_reg,
605 S2MPU02_BUCK1234_RAMP_MASK << ramp_shift,
606 ramp_val << ramp_shift);
607}
608
609static struct regulator_ops s2mpu02_ldo_ops = {
610 .list_voltage = regulator_list_voltage_linear,
611 .map_voltage = regulator_map_voltage_linear,
612 .is_enabled = regulator_is_enabled_regmap,
613 .enable = s2mps14_regulator_enable,
614 .disable = regulator_disable_regmap,
615 .get_voltage_sel = regulator_get_voltage_sel_regmap,
616 .set_voltage_sel = regulator_set_voltage_sel_regmap,
617 .set_voltage_time_sel = regulator_set_voltage_time_sel,
618 .set_suspend_disable = s2mps14_regulator_set_suspend_disable,
619};
620
621static struct regulator_ops s2mpu02_buck_ops = {
622 .list_voltage = regulator_list_voltage_linear,
623 .map_voltage = regulator_map_voltage_linear,
624 .is_enabled = regulator_is_enabled_regmap,
625 .enable = s2mps14_regulator_enable,
626 .disable = regulator_disable_regmap,
627 .get_voltage_sel = regulator_get_voltage_sel_regmap,
628 .set_voltage_sel = regulator_set_voltage_sel_regmap,
629 .set_voltage_time_sel = regulator_set_voltage_time_sel,
630 .set_suspend_disable = s2mps14_regulator_set_suspend_disable,
631 .set_ramp_delay = s2mpu02_set_ramp_delay,
632};
633
634#define regulator_desc_s2mpu02_ldo1(num) { \
635 .name = "LDO"#num, \
636 .id = S2MPU02_LDO##num, \
637 .ops = &s2mpu02_ldo_ops, \
638 .type = REGULATOR_VOLTAGE, \
639 .owner = THIS_MODULE, \
640 .min_uV = S2MPU02_LDO_MIN_900MV, \
641 .uV_step = S2MPU02_LDO_STEP_12_5MV, \
642 .linear_min_sel = S2MPU02_LDO_GROUP1_START_SEL, \
643 .n_voltages = S2MPU02_LDO_N_VOLTAGES, \
644 .vsel_reg = S2MPU02_REG_L1CTRL, \
645 .vsel_mask = S2MPU02_LDO_VSEL_MASK, \
646 .enable_reg = S2MPU02_REG_L1CTRL, \
647 .enable_mask = S2MPU02_ENABLE_MASK \
648}
649#define regulator_desc_s2mpu02_ldo2(num) { \
650 .name = "LDO"#num, \
651 .id = S2MPU02_LDO##num, \
652 .ops = &s2mpu02_ldo_ops, \
653 .type = REGULATOR_VOLTAGE, \
654 .owner = THIS_MODULE, \
655 .min_uV = S2MPU02_LDO_MIN_1050MV, \
656 .uV_step = S2MPU02_LDO_STEP_25MV, \
657 .linear_min_sel = S2MPU02_LDO_GROUP2_START_SEL, \
658 .n_voltages = S2MPU02_LDO_N_VOLTAGES, \
659 .vsel_reg = S2MPU02_REG_L2CTRL1, \
660 .vsel_mask = S2MPU02_LDO_VSEL_MASK, \
661 .enable_reg = S2MPU02_REG_L2CTRL1, \
662 .enable_mask = S2MPU02_ENABLE_MASK \
663}
664#define regulator_desc_s2mpu02_ldo3(num) { \
665 .name = "LDO"#num, \
666 .id = S2MPU02_LDO##num, \
667 .ops = &s2mpu02_ldo_ops, \
668 .type = REGULATOR_VOLTAGE, \
669 .owner = THIS_MODULE, \
670 .min_uV = S2MPU02_LDO_MIN_900MV, \
671 .uV_step = S2MPU02_LDO_STEP_12_5MV, \
672 .linear_min_sel = S2MPU02_LDO_GROUP1_START_SEL, \
673 .n_voltages = S2MPU02_LDO_N_VOLTAGES, \
674 .vsel_reg = S2MPU02_REG_L3CTRL + num - 3, \
675 .vsel_mask = S2MPU02_LDO_VSEL_MASK, \
676 .enable_reg = S2MPU02_REG_L3CTRL + num - 3, \
677 .enable_mask = S2MPU02_ENABLE_MASK \
678}
679#define regulator_desc_s2mpu02_ldo4(num) { \
680 .name = "LDO"#num, \
681 .id = S2MPU02_LDO##num, \
682 .ops = &s2mpu02_ldo_ops, \
683 .type = REGULATOR_VOLTAGE, \
684 .owner = THIS_MODULE, \
685 .min_uV = S2MPU02_LDO_MIN_1050MV, \
686 .uV_step = S2MPU02_LDO_STEP_25MV, \
687 .linear_min_sel = S2MPU02_LDO_GROUP2_START_SEL, \
688 .n_voltages = S2MPU02_LDO_N_VOLTAGES, \
689 .vsel_reg = S2MPU02_REG_L3CTRL + num - 3, \
690 .vsel_mask = S2MPU02_LDO_VSEL_MASK, \
691 .enable_reg = S2MPU02_REG_L3CTRL + num - 3, \
692 .enable_mask = S2MPU02_ENABLE_MASK \
693}
694#define regulator_desc_s2mpu02_ldo5(num) { \
695 .name = "LDO"#num, \
696 .id = S2MPU02_LDO##num, \
697 .ops = &s2mpu02_ldo_ops, \
698 .type = REGULATOR_VOLTAGE, \
699 .owner = THIS_MODULE, \
700 .min_uV = S2MPU02_LDO_MIN_1600MV, \
701 .uV_step = S2MPU02_LDO_STEP_50MV, \
702 .linear_min_sel = S2MPU02_LDO_GROUP3_START_SEL, \
703 .n_voltages = S2MPU02_LDO_N_VOLTAGES, \
704 .vsel_reg = S2MPU02_REG_L3CTRL + num - 3, \
705 .vsel_mask = S2MPU02_LDO_VSEL_MASK, \
706 .enable_reg = S2MPU02_REG_L3CTRL + num - 3, \
707 .enable_mask = S2MPU02_ENABLE_MASK \
708}
709
710#define regulator_desc_s2mpu02_buck1234(num) { \
711 .name = "BUCK"#num, \
712 .id = S2MPU02_BUCK##num, \
713 .ops = &s2mpu02_buck_ops, \
714 .type = REGULATOR_VOLTAGE, \
715 .owner = THIS_MODULE, \
716 .min_uV = S2MPU02_BUCK1234_MIN_600MV, \
717 .uV_step = S2MPU02_BUCK1234_STEP_6_25MV, \
718 .n_voltages = S2MPU02_BUCK_N_VOLTAGES, \
719 .linear_min_sel = S2MPU02_BUCK1234_START_SEL, \
720 .ramp_delay = S2MPU02_BUCK_RAMP_DELAY, \
721 .vsel_reg = S2MPU02_REG_B1CTRL2 + (num - 1) * 2, \
722 .vsel_mask = S2MPU02_BUCK_VSEL_MASK, \
723 .enable_reg = S2MPU02_REG_B1CTRL1 + (num - 1) * 2, \
724 .enable_mask = S2MPU02_ENABLE_MASK \
725}
726#define regulator_desc_s2mpu02_buck5(num) { \
727 .name = "BUCK"#num, \
728 .id = S2MPU02_BUCK##num, \
729 .ops = &s2mpu02_ldo_ops, \
730 .type = REGULATOR_VOLTAGE, \
731 .owner = THIS_MODULE, \
732 .min_uV = S2MPU02_BUCK5_MIN_1081_25MV, \
733 .uV_step = S2MPU02_BUCK5_STEP_6_25MV, \
734 .n_voltages = S2MPU02_BUCK_N_VOLTAGES, \
735 .linear_min_sel = S2MPU02_BUCK5_START_SEL, \
736 .ramp_delay = S2MPU02_BUCK_RAMP_DELAY, \
737 .vsel_reg = S2MPU02_REG_B5CTRL2, \
738 .vsel_mask = S2MPU02_BUCK_VSEL_MASK, \
739 .enable_reg = S2MPU02_REG_B5CTRL1, \
740 .enable_mask = S2MPU02_ENABLE_MASK \
741}
742#define regulator_desc_s2mpu02_buck6(num) { \
743 .name = "BUCK"#num, \
744 .id = S2MPU02_BUCK##num, \
745 .ops = &s2mpu02_ldo_ops, \
746 .type = REGULATOR_VOLTAGE, \
747 .owner = THIS_MODULE, \
748 .min_uV = S2MPU02_BUCK6_MIN_1700MV, \
749 .uV_step = S2MPU02_BUCK6_STEP_2_50MV, \
750 .n_voltages = S2MPU02_BUCK_N_VOLTAGES, \
751 .linear_min_sel = S2MPU02_BUCK6_START_SEL, \
752 .ramp_delay = S2MPU02_BUCK_RAMP_DELAY, \
753 .vsel_reg = S2MPU02_REG_B6CTRL2, \
754 .vsel_mask = S2MPU02_BUCK_VSEL_MASK, \
755 .enable_reg = S2MPU02_REG_B6CTRL1, \
756 .enable_mask = S2MPU02_ENABLE_MASK \
757}
758#define regulator_desc_s2mpu02_buck7(num) { \
759 .name = "BUCK"#num, \
760 .id = S2MPU02_BUCK##num, \
761 .ops = &s2mpu02_ldo_ops, \
762 .type = REGULATOR_VOLTAGE, \
763 .owner = THIS_MODULE, \
764 .min_uV = S2MPU02_BUCK7_MIN_900MV, \
765 .uV_step = S2MPU02_BUCK7_STEP_6_25MV, \
766 .n_voltages = S2MPU02_BUCK_N_VOLTAGES, \
767 .linear_min_sel = S2MPU02_BUCK7_START_SEL, \
768 .ramp_delay = S2MPU02_BUCK_RAMP_DELAY, \
769 .vsel_reg = S2MPU02_REG_B7CTRL2, \
770 .vsel_mask = S2MPU02_BUCK_VSEL_MASK, \
771 .enable_reg = S2MPU02_REG_B7CTRL1, \
772 .enable_mask = S2MPU02_ENABLE_MASK \
773}
774
775static const struct regulator_desc s2mpu02_regulators[] = {
776 regulator_desc_s2mpu02_ldo1(1),
777 regulator_desc_s2mpu02_ldo2(2),
778 regulator_desc_s2mpu02_ldo4(3),
779 regulator_desc_s2mpu02_ldo5(4),
780 regulator_desc_s2mpu02_ldo4(5),
781 regulator_desc_s2mpu02_ldo3(6),
782 regulator_desc_s2mpu02_ldo3(7),
783 regulator_desc_s2mpu02_ldo4(8),
784 regulator_desc_s2mpu02_ldo5(9),
785 regulator_desc_s2mpu02_ldo3(10),
786 regulator_desc_s2mpu02_ldo4(11),
787 regulator_desc_s2mpu02_ldo5(12),
788 regulator_desc_s2mpu02_ldo5(13),
789 regulator_desc_s2mpu02_ldo5(14),
790 regulator_desc_s2mpu02_ldo5(15),
791 regulator_desc_s2mpu02_ldo5(16),
792 regulator_desc_s2mpu02_ldo4(17),
793 regulator_desc_s2mpu02_ldo5(18),
794 regulator_desc_s2mpu02_ldo3(19),
795 regulator_desc_s2mpu02_ldo4(20),
796 regulator_desc_s2mpu02_ldo5(21),
797 regulator_desc_s2mpu02_ldo5(22),
798 regulator_desc_s2mpu02_ldo5(23),
799 regulator_desc_s2mpu02_ldo4(24),
800 regulator_desc_s2mpu02_ldo5(25),
801 regulator_desc_s2mpu02_ldo4(26),
802 regulator_desc_s2mpu02_ldo5(27),
803 regulator_desc_s2mpu02_ldo5(28),
804 regulator_desc_s2mpu02_buck1234(1),
805 regulator_desc_s2mpu02_buck1234(2),
806 regulator_desc_s2mpu02_buck1234(3),
807 regulator_desc_s2mpu02_buck1234(4),
808 regulator_desc_s2mpu02_buck5(5),
809 regulator_desc_s2mpu02_buck6(6),
810 regulator_desc_s2mpu02_buck7(7),
811};
812
a5023574 813static int s2mps11_pmic_probe(struct platform_device *pdev)
cb74685e
SK		 814{
815 struct sec_pmic_dev *iodev = dev_get_drvdata(pdev->dev.parent);
01170383 816 struct sec_platform_data *pdata = NULL;
3e80f95b 817 struct of_regulator_match *rdata = NULL;
cb74685e 818 struct regulator_config config = { };
cb74685e 819 struct s2mps11_info *s2mps11;
3e80f95b 820 int i, ret = 0;
0f4cc282 821 const struct regulator_desc *regulators;
cb74685e 822
cb74685e
SK		 823 s2mps11 = devm_kzalloc(&pdev->dev, sizeof(struct s2mps11_info),
824 GFP_KERNEL);
825 if (!s2mps11)
826 return -ENOMEM;
827
00e2573d
CC		 828 s2mps11->dev_type = platform_get_device_id(pdev)->driver_data;
829 switch (s2mps11->dev_type) {
0f4cc282
KK		 830 case S2MPS11X:
831 s2mps11->rdev_num = ARRAY_SIZE(s2mps11_regulators);
832 regulators = s2mps11_regulators;
833 break;
15f77300
KK		 834 case S2MPS14X:
835 s2mps11->rdev_num = ARRAY_SIZE(s2mps14_regulators);
836 regulators = s2mps14_regulators;
837 break;
00e2573d
CC		 838 case S2MPU02:
839 s2mps11->rdev_num = ARRAY_SIZE(s2mpu02_regulators);
840 regulators = s2mpu02_regulators;
841 break;
0f4cc282 842 default:
00e2573d
CC		 843 dev_err(&pdev->dev, "Invalid device type: %u\n",
844 s2mps11->dev_type);
0f4cc282
KK		 845 return -EINVAL;
846 };
3e80f95b 847
97f53d71
KK		 848 s2mps11->ext_control_gpio = devm_kzalloc(&pdev->dev,
849 sizeof(*s2mps11->ext_control_gpio) * s2mps11->rdev_num,
850 GFP_KERNEL);
851 if (!s2mps11->ext_control_gpio)
852 return -ENOMEM;
de5d0563
KK		 853 /*
854 * 0 is a valid GPIO so initialize all GPIO-s to negative value
855 * to indicate that external control won't be used for this regulator.
856 */
857 for (i = 0; i < s2mps11->rdev_num; i++)
858 s2mps11->ext_control_gpio[i] = -EINVAL;
97f53d71 859
6c683c92 860 if (!iodev->dev->of_node) {
01170383
KK		 861 if (iodev->pdata) {
862 pdata = iodev->pdata;
6c683c92
YSB		 863 goto common_reg;
864 } else {
865 dev_err(pdev->dev.parent,
866 "Platform data or DT node not supplied\n");
867 return -ENODEV;
868 }
869 }
a50c6b32 870
0f4cc282 871 rdata = kzalloc(sizeof(*rdata) * s2mps11->rdev_num, GFP_KERNEL);
3e80f95b
KK		 872 if (!rdata)
873 return -ENOMEM;
874
0f4cc282 875 for (i = 0; i < s2mps11->rdev_num; i++)
a50c6b32
YSB		 876 rdata[i].name = regulators[i].name;
877
00e2573d 878 ret = s2mps11_pmic_dt_parse(pdev, rdata, s2mps11);
01170383 879 if (ret)
3e80f95b 880 goto out;
a50c6b32 881
a50c6b32
YSB		 882common_reg:
883 platform_set_drvdata(pdev, s2mps11);
cb74685e 884
a50c6b32 885 config.dev = &pdev->dev;
1b1ccee1 886 config.regmap = iodev->regmap_pmic;
a50c6b32 887 config.driver_data = s2mps11;
de5d0563 888 config.ena_gpio_flags = GPIOF_OUT_INIT_HIGH;
0f4cc282 889 for (i = 0; i < s2mps11->rdev_num; i++) {
31195252
KK		 890 struct regulator_dev *regulator;
891
01170383 892 if (pdata) {
a50c6b32 893 config.init_data = pdata->regulators[i].initdata;
54820f58 894 config.of_node = pdata->regulators[i].reg_node;
a50c6b32
YSB		 895 } else {
896 config.init_data = rdata[i].init_data;
897 config.of_node = rdata[i].of_node;
898 }
de5d0563 899 config.ena_gpio = s2mps11->ext_control_gpio[i];
97f53d71 900
31195252 901 regulator = devm_regulator_register(&pdev->dev,
d55cd794 902 &regulators[i], &config);
31195252
KK		 903 if (IS_ERR(regulator)) {
904 ret = PTR_ERR(regulator);
232b2504
AL		 905 dev_err(&pdev->dev, "regulator init failed for %d\n",
906 i);
3e80f95b 907 goto out;
cb74685e 908 }
97f53d71 909
de5d0563 910 if (gpio_is_valid(s2mps11->ext_control_gpio[i])) {
97f53d71
KK		 911 ret = s2mps14_pmic_enable_ext_control(s2mps11,
912 regulator);
913 if (ret < 0) {
914 dev_err(&pdev->dev,
915 "failed to enable GPIO control over %s: %d\n",
916 regulator->desc->name, ret);
917 goto out;
918 }
919 }
cb74685e
SK		 920 }
921
3e80f95b
KK		 922out:
923 kfree(rdata);
924
925 return ret;
cb74685e
SK		 926}
927
928static const struct platform_device_id s2mps11_pmic_id[] = {
3e80f95b 929 { "s2mps11-pmic", S2MPS11X},
15f77300 930 { "s2mps14-pmic", S2MPS14X},
00e2573d 931 { "s2mpu02-pmic", S2MPU02},
cb74685e
SK		 932 { },
933};
934MODULE_DEVICE_TABLE(platform, s2mps11_pmic_id);
935
936static struct platform_driver s2mps11_pmic_driver = {
937 .driver = {
938 .name = "s2mps11-pmic",
939 .owner = THIS_MODULE,
940 },
941 .probe = s2mps11_pmic_probe,
cb74685e
SK		 942 .id_table = s2mps11_pmic_id,
943};
944
945static int __init s2mps11_pmic_init(void)
946{
947 return platform_driver_register(&s2mps11_pmic_driver);
948}
949subsys_initcall(s2mps11_pmic_init);
950
951static void __exit s2mps11_pmic_exit(void)
952{
953 platform_driver_unregister(&s2mps11_pmic_driver);
954}
955module_exit(s2mps11_pmic_exit);
956
957/* Module information */
958MODULE_AUTHOR("Sangbeom Kim <sbkim73@samsung.com>");
cad35c3f 959MODULE_DESCRIPTION("SAMSUNG S2MPS11/S2MPS14/S2MPU02 Regulator Driver");
cb74685e 960MODULE_LICENSE("GPL");
Linux 6.x block layer and io_uring tree(s)