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regulator: max77686: Convert driver to use regulator_set_voltage_time_sel.
[mirror_ubuntu-bionic-kernel.git] / drivers / regulator / s5m8767.c
CommitLineData
9767ec7f
SK		 1/*
2 * s5m8767.c
3 *
4 * Copyright (c) 2011 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 */
13
14#include <linux/bug.h>
9767ec7f
SK		 15#include <linux/err.h>
16#include <linux/gpio.h>
17#include <linux/slab.h>
18#include <linux/module.h>
19#include <linux/platform_device.h>
20#include <linux/regulator/driver.h>
21#include <linux/regulator/machine.h>
22#include <linux/mfd/s5m87xx/s5m-core.h>
23#include <linux/mfd/s5m87xx/s5m-pmic.h>
24
25struct s5m8767_info {
26 struct device *dev;
27 struct s5m87xx_dev *iodev;
28 int num_regulators;
29 struct regulator_dev **rdev;
7e44bb83 30 struct s5m_opmode_data *opmode;
9767ec7f
SK		 31
32 int ramp_delay;
33 bool buck2_ramp;
34 bool buck3_ramp;
35 bool buck4_ramp;
36
37 bool buck2_gpiodvs;
38 bool buck3_gpiodvs;
39 bool buck4_gpiodvs;
40 u8 buck2_vol[8];
41 u8 buck3_vol[8];
42 u8 buck4_vol[8];
43 int buck_gpios[3];
44 int buck_gpioindex;
45};
46
47struct s5m_voltage_desc {
48 int max;
49 int min;
50 int step;
51};
52
53static const struct s5m_voltage_desc buck_voltage_val1 = {
54 .max = 2225000,
55 .min = 650000,
56 .step = 6250,
57};
58
59static const struct s5m_voltage_desc buck_voltage_val2 = {
60 .max = 1600000,
61 .min = 600000,
62 .step = 6250,
63};
64
65static const struct s5m_voltage_desc buck_voltage_val3 = {
66 .max = 3000000,
67 .min = 750000,
68 .step = 12500,
69};
70
71static const struct s5m_voltage_desc ldo_voltage_val1 = {
72 .max = 3950000,
73 .min = 800000,
74 .step = 50000,
75};
76
77static const struct s5m_voltage_desc ldo_voltage_val2 = {
78 .max = 2375000,
79 .min = 800000,
80 .step = 25000,
81};
82
83static const struct s5m_voltage_desc *reg_voltage_map[] = {
84 [S5M8767_LDO1] = &ldo_voltage_val2,
85 [S5M8767_LDO2] = &ldo_voltage_val2,
86 [S5M8767_LDO3] = &ldo_voltage_val1,
87 [S5M8767_LDO4] = &ldo_voltage_val1,
88 [S5M8767_LDO5] = &ldo_voltage_val1,
89 [S5M8767_LDO6] = &ldo_voltage_val2,
90 [S5M8767_LDO7] = &ldo_voltage_val2,
91 [S5M8767_LDO8] = &ldo_voltage_val2,
92 [S5M8767_LDO9] = &ldo_voltage_val1,
93 [S5M8767_LDO10] = &ldo_voltage_val1,
94 [S5M8767_LDO11] = &ldo_voltage_val1,
95 [S5M8767_LDO12] = &ldo_voltage_val1,
96 [S5M8767_LDO13] = &ldo_voltage_val1,
97 [S5M8767_LDO14] = &ldo_voltage_val1,
98 [S5M8767_LDO15] = &ldo_voltage_val2,
99 [S5M8767_LDO16] = &ldo_voltage_val1,
100 [S5M8767_LDO17] = &ldo_voltage_val1,
101 [S5M8767_LDO18] = &ldo_voltage_val1,
102 [S5M8767_LDO19] = &ldo_voltage_val1,
103 [S5M8767_LDO20] = &ldo_voltage_val1,
104 [S5M8767_LDO21] = &ldo_voltage_val1,
105 [S5M8767_LDO22] = &ldo_voltage_val1,
106 [S5M8767_LDO23] = &ldo_voltage_val1,
107 [S5M8767_LDO24] = &ldo_voltage_val1,
108 [S5M8767_LDO25] = &ldo_voltage_val1,
109 [S5M8767_LDO26] = &ldo_voltage_val1,
110 [S5M8767_LDO27] = &ldo_voltage_val1,
111 [S5M8767_LDO28] = &ldo_voltage_val1,
112 [S5M8767_BUCK1] = &buck_voltage_val1,
113 [S5M8767_BUCK2] = &buck_voltage_val2,
114 [S5M8767_BUCK3] = &buck_voltage_val2,
115 [S5M8767_BUCK4] = &buck_voltage_val2,
116 [S5M8767_BUCK5] = &buck_voltage_val1,
117 [S5M8767_BUCK6] = &buck_voltage_val1,
118 [S5M8767_BUCK7] = NULL,
119 [S5M8767_BUCK8] = NULL,
120 [S5M8767_BUCK9] = &buck_voltage_val3,
121};
122
9767ec7f
SK		 123static int s5m8767_list_voltage(struct regulator_dev *rdev,
124 unsigned int selector)
125{
126 const struct s5m_voltage_desc *desc;
20a14b84 127 int reg_id = rdev_get_id(rdev);
9767ec7f
SK		 128 int val;
129
130 if (reg_id >= ARRAY_SIZE(reg_voltage_map) || reg_id < 0)
131 return -EINVAL;
132
133 desc = reg_voltage_map[reg_id];
134 if (desc == NULL)
135 return -EINVAL;
136
137 val = desc->min + desc->step * selector;
138 if (val > desc->max)
139 return -EINVAL;
140
141 return val;
142}
143
5ceba7ba 144static unsigned int s5m8767_opmode_reg[][4] = {
7e44bb83
SK		 145 /* {OFF, ON, LOWPOWER, SUSPEND} */
146 /* LDO1 ... LDO28 */
147 {0x0, 0x3, 0x2, 0x1}, /* LDO1 */
148 {0x0, 0x3, 0x2, 0x1},
149 {0x0, 0x3, 0x2, 0x1},
150 {0x0, 0x0, 0x0, 0x0},
151 {0x0, 0x3, 0x2, 0x1}, /* LDO5 */
152 {0x0, 0x3, 0x2, 0x1},
153 {0x0, 0x3, 0x2, 0x1},
154 {0x0, 0x3, 0x2, 0x1},
155 {0x0, 0x3, 0x2, 0x1},
156 {0x0, 0x3, 0x2, 0x1}, /* LDO10 */
157 {0x0, 0x3, 0x2, 0x1},
158 {0x0, 0x3, 0x2, 0x1},
159 {0x0, 0x3, 0x2, 0x1},
160 {0x0, 0x3, 0x2, 0x1},
161 {0x0, 0x3, 0x2, 0x1}, /* LDO15 */
162 {0x0, 0x3, 0x2, 0x1},
163 {0x0, 0x3, 0x2, 0x1},
164 {0x0, 0x0, 0x0, 0x0},
165 {0x0, 0x3, 0x2, 0x1},
166 {0x0, 0x3, 0x2, 0x1}, /* LDO20 */
167 {0x0, 0x3, 0x2, 0x1},
168 {0x0, 0x3, 0x2, 0x1},
169 {0x0, 0x0, 0x0, 0x0},
170 {0x0, 0x3, 0x2, 0x1},
171 {0x0, 0x3, 0x2, 0x1}, /* LDO25 */
172 {0x0, 0x3, 0x2, 0x1},
173 {0x0, 0x3, 0x2, 0x1},
174 {0x0, 0x3, 0x2, 0x1}, /* LDO28 */
175
176 /* BUCK1 ... BUCK9 */
177 {0x0, 0x3, 0x1, 0x1}, /* BUCK1 */
178 {0x0, 0x3, 0x1, 0x1},
179 {0x0, 0x3, 0x1, 0x1},
180 {0x0, 0x3, 0x1, 0x1},
181 {0x0, 0x3, 0x2, 0x1}, /* BUCK5 */
182 {0x0, 0x3, 0x1, 0x1},
183 {0x0, 0x3, 0x1, 0x1},
184 {0x0, 0x3, 0x1, 0x1},
185 {0x0, 0x3, 0x1, 0x1}, /* BUCK9 */
186};
187
188static int s5m8767_get_register(struct regulator_dev *rdev, int *reg,
189 int *enable_ctrl)
9767ec7f 190{
20a14b84 191 int reg_id = rdev_get_id(rdev);
7e44bb83
SK		 192 unsigned int mode;
193 struct s5m8767_info *s5m8767 = rdev_get_drvdata(rdev);
9767ec7f
SK		 194
195 switch (reg_id) {
196 case S5M8767_LDO1 ... S5M8767_LDO2:
197 *reg = S5M8767_REG_LDO1CTRL + (reg_id - S5M8767_LDO1);
198 break;
199 case S5M8767_LDO3 ... S5M8767_LDO28:
200 *reg = S5M8767_REG_LDO3CTRL + (reg_id - S5M8767_LDO3);
201 break;
202 case S5M8767_BUCK1:
203 *reg = S5M8767_REG_BUCK1CTRL1;
204 break;
205 case S5M8767_BUCK2 ... S5M8767_BUCK4:
206 *reg = S5M8767_REG_BUCK2CTRL + (reg_id - S5M8767_BUCK2) * 9;
207 break;
208 case S5M8767_BUCK5:
209 *reg = S5M8767_REG_BUCK5CTRL1;
210 break;
211 case S5M8767_BUCK6 ... S5M8767_BUCK9:
212 *reg = S5M8767_REG_BUCK6CTRL1 + (reg_id - S5M8767_BUCK6) * 2;
213 break;
214 default:
215 return -EINVAL;
216 }
217
7e44bb83
SK		 218 mode = s5m8767->opmode[reg_id].mode;
219 *enable_ctrl = s5m8767_opmode_reg[reg_id][mode] << S5M8767_ENCTRL_SHIFT;
9767ec7f
SK		 220 return 0;
221}
222
223static int s5m8767_reg_is_enabled(struct regulator_dev *rdev)
224{
225 struct s5m8767_info *s5m8767 = rdev_get_drvdata(rdev);
226 int ret, reg;
7e44bb83 227 int mask = 0xc0, enable_ctrl;
9767ec7f
SK		 228 u8 val;
229
7e44bb83 230 ret = s5m8767_get_register(rdev, &reg, &enable_ctrl);
9767ec7f
SK		 231 if (ret == -EINVAL)
232 return 1;
233 else if (ret)
234 return ret;
235
236 ret = s5m_reg_read(s5m8767->iodev, reg, &val);
237 if (ret)
238 return ret;
239
7e44bb83 240 return (val & mask) == enable_ctrl;
9767ec7f
SK		 241}
242
243static int s5m8767_reg_enable(struct regulator_dev *rdev)
244{
245 struct s5m8767_info *s5m8767 = rdev_get_drvdata(rdev);
246 int ret, reg;
7e44bb83 247 int mask = 0xc0, enable_ctrl;
9767ec7f 248
7e44bb83 249 ret = s5m8767_get_register(rdev, &reg, &enable_ctrl);
9767ec7f
SK		 250 if (ret)
251 return ret;
252
7e44bb83 253 return s5m_reg_update(s5m8767->iodev, reg, enable_ctrl, mask);
9767ec7f
SK		 254}
255
256static int s5m8767_reg_disable(struct regulator_dev *rdev)
257{
258 struct s5m8767_info *s5m8767 = rdev_get_drvdata(rdev);
259 int ret, reg;
7e44bb83 260 int mask = 0xc0, enable_ctrl;
9767ec7f 261
7e44bb83 262 ret = s5m8767_get_register(rdev, &reg, &enable_ctrl);
9767ec7f
SK		 263 if (ret)
264 return ret;
265
7e44bb83 266 return s5m_reg_update(s5m8767->iodev, reg, ~mask, mask);
9767ec7f
SK		 267}
268
269static int s5m8767_get_voltage_register(struct regulator_dev *rdev, int *_reg)
270{
0a41685f 271 struct s5m8767_info *s5m8767 = rdev_get_drvdata(rdev);
20a14b84 272 int reg_id = rdev_get_id(rdev);
9767ec7f
SK		 273 int reg;
274
275 switch (reg_id) {
276 case S5M8767_LDO1 ... S5M8767_LDO2:
277 reg = S5M8767_REG_LDO1CTRL + (reg_id - S5M8767_LDO1);
278 break;
279 case S5M8767_LDO3 ... S5M8767_LDO28:
280 reg = S5M8767_REG_LDO3CTRL + (reg_id - S5M8767_LDO3);
281 break;
282 case S5M8767_BUCK1:
283 reg = S5M8767_REG_BUCK1CTRL2;
284 break;
285 case S5M8767_BUCK2:
286 reg = S5M8767_REG_BUCK2DVS1;
0a41685f
AL		 287 if (s5m8767->buck2_gpiodvs)
288 reg += s5m8767->buck_gpioindex;
9767ec7f
SK		 289 break;
290 case S5M8767_BUCK3:
291 reg = S5M8767_REG_BUCK3DVS1;
0a41685f
AL		 292 if (s5m8767->buck3_gpiodvs)
293 reg += s5m8767->buck_gpioindex;
9767ec7f
SK		 294 break;
295 case S5M8767_BUCK4:
296 reg = S5M8767_REG_BUCK4DVS1;
0a41685f
AL		 297 if (s5m8767->buck4_gpiodvs)
298 reg += s5m8767->buck_gpioindex;
9767ec7f
SK		 299 break;
300 case S5M8767_BUCK5:
301 reg = S5M8767_REG_BUCK5CTRL2;
302 break;
303 case S5M8767_BUCK6 ... S5M8767_BUCK9:
304 reg = S5M8767_REG_BUCK6CTRL2 + (reg_id - S5M8767_BUCK6) * 2;
305 break;
306 default:
307 return -EINVAL;
308 }
309
310 *_reg = reg;
311
312 return 0;
313}
314
315static int s5m8767_get_voltage_sel(struct regulator_dev *rdev)
316{
317 struct s5m8767_info *s5m8767 = rdev_get_drvdata(rdev);
0a41685f 318 int reg, mask, ret;
20a14b84 319 int reg_id = rdev_get_id(rdev);
9767ec7f
SK		 320 u8 val;
321
322 ret = s5m8767_get_voltage_register(rdev, &reg);
323 if (ret)
324 return ret;
325
0a41685f 326 mask = (reg_id < S5M8767_BUCK1) ? 0x3f : 0xff;
9767ec7f
SK		 327
328 ret = s5m_reg_read(s5m8767->iodev, reg, &val);
329 if (ret)
330 return ret;
331
332 val &= mask;
333
334 return val;
335}
336
5b5e977c 337static int s5m8767_convert_voltage_to_sel(
9767ec7f
SK		 338 const struct s5m_voltage_desc *desc,
339 int min_vol, int max_vol)
340{
5b5e977c 341 int selector = 0;
9767ec7f
SK		 342
343 if (desc == NULL)
344 return -EINVAL;
345
346 if (max_vol < desc->min || min_vol > desc->max)
347 return -EINVAL;
348
94e85a3c
AL		 349 if (min_vol < desc->min)
350 min_vol = desc->min;
351
352 selector = DIV_ROUND_UP(min_vol - desc->min, desc->step);
9767ec7f 353
5b5e977c 354 if (desc->min + desc->step * selector > max_vol)
9767ec7f
SK		 355 return -EINVAL;
356
5b5e977c 357 return selector;
9767ec7f
SK		 358}
359
df2643cf 360static inline int s5m8767_set_high(struct s5m8767_info *s5m8767)
321d2aba
AL		 361{
362 int temp_index = s5m8767->buck_gpioindex;
363
364 gpio_set_value(s5m8767->buck_gpios[0], (temp_index >> 2) & 0x1);
365 gpio_set_value(s5m8767->buck_gpios[1], (temp_index >> 1) & 0x1);
366 gpio_set_value(s5m8767->buck_gpios[2], temp_index & 0x1);
df2643cf
SK		 367
368 return 0;
321d2aba
AL		 369}
370
df2643cf 371static inline int s5m8767_set_low(struct s5m8767_info *s5m8767)
321d2aba
AL		 372{
373 int temp_index = s5m8767->buck_gpioindex;
374
375 gpio_set_value(s5m8767->buck_gpios[2], temp_index & 0x1);
376 gpio_set_value(s5m8767->buck_gpios[1], (temp_index >> 1) & 0x1);
377 gpio_set_value(s5m8767->buck_gpios[0], (temp_index >> 2) & 0x1);
df2643cf
SK		 378
379 return 0;
321d2aba
AL		 380}
381
df2643cf
SK		 382static int s5m8767_set_voltage_sel(struct regulator_dev *rdev,
383 unsigned selector)
9767ec7f
SK		 384{
385 struct s5m8767_info *s5m8767 = rdev_get_drvdata(rdev);
20a14b84 386 int reg_id = rdev_get_id(rdev);
df2643cf 387 int reg, mask, ret = 0, old_index, index = 0;
321d2aba 388 u8 *buck234_vol = NULL;
9767ec7f
SK		 389
390 switch (reg_id) {
391 case S5M8767_LDO1 ... S5M8767_LDO28:
392 mask = 0x3f;
393 break;
394 case S5M8767_BUCK1 ... S5M8767_BUCK6:
395 mask = 0xff;
321d2aba
AL		 396 if (reg_id == S5M8767_BUCK2 && s5m8767->buck2_gpiodvs)
397 buck234_vol = &s5m8767->buck2_vol[0];
398 else if (reg_id == S5M8767_BUCK3 && s5m8767->buck3_gpiodvs)
399 buck234_vol = &s5m8767->buck3_vol[0];
400 else if (reg_id == S5M8767_BUCK4 && s5m8767->buck4_gpiodvs)
401 buck234_vol = &s5m8767->buck4_vol[0];
9767ec7f
SK		 402 break;
403 case S5M8767_BUCK7 ... S5M8767_BUCK8:
404 return -EINVAL;
405 case S5M8767_BUCK9:
406 mask = 0xff;
407 break;
408 default:
409 return -EINVAL;
410 }
411
321d2aba
AL		 412 /* buck234_vol != NULL means to control buck234 voltage via DVS GPIO */
413 if (buck234_vol) {
df2643cf 414 while (*buck234_vol != selector) {
321d2aba
AL		 415 buck234_vol++;
416 index++;
417 }
418 old_index = s5m8767->buck_gpioindex;
419 s5m8767->buck_gpioindex = index;
420
421 if (index > old_index)
df2643cf 422 return s5m8767_set_high(s5m8767);
321d2aba 423 else
df2643cf 424 return s5m8767_set_low(s5m8767);
321d2aba
AL		 425 } else {
426 ret = s5m8767_get_voltage_register(rdev, &reg);
427 if (ret)
428 return ret;
429
df2643cf 430 return s5m_reg_update(s5m8767->iodev, reg, selector, mask);
321d2aba 431 }
9767ec7f
SK		 432}
433
9767ec7f
SK		 434static int s5m8767_set_voltage_time_sel(struct regulator_dev *rdev,
435 unsigned int old_sel,
436 unsigned int new_sel)
437{
438 struct s5m8767_info *s5m8767 = rdev_get_drvdata(rdev);
439 const struct s5m_voltage_desc *desc;
20a14b84 440 int reg_id = rdev_get_id(rdev);
9767ec7f 441
9767ec7f
SK		 442 desc = reg_voltage_map[reg_id];
443
9767ec7f 444 if (old_sel < new_sel)
89e0f0e4 445 return DIV_ROUND_UP(desc->step * (new_sel - old_sel),
0f8b9c77 446 s5m8767->ramp_delay * 1000);
89e0f0e4 447 return 0;
9767ec7f
SK		 448}
449
d35aad0c 450static struct regulator_ops s5m8767_ops = {
9767ec7f
SK		 451 .list_voltage = s5m8767_list_voltage,
452 .is_enabled = s5m8767_reg_is_enabled,
453 .enable = s5m8767_reg_enable,
454 .disable = s5m8767_reg_disable,
455 .get_voltage_sel = s5m8767_get_voltage_sel,
df2643cf 456 .set_voltage_sel = s5m8767_set_voltage_sel,
9767ec7f
SK		 457 .set_voltage_time_sel = s5m8767_set_voltage_time_sel,
458};
459
65896e73
AL		 460#define s5m8767_regulator_desc(_name) { \
461 .name = #_name, \
462 .id = S5M8767_##_name, \
463 .ops = &s5m8767_ops, \
9767ec7f
SK		 464 .type = REGULATOR_VOLTAGE, \
465 .owner = THIS_MODULE, \
466}
467
468static struct regulator_desc regulators[] = {
65896e73
AL		 469 s5m8767_regulator_desc(LDO1),
470 s5m8767_regulator_desc(LDO2),
471 s5m8767_regulator_desc(LDO3),
472 s5m8767_regulator_desc(LDO4),
473 s5m8767_regulator_desc(LDO5),
474 s5m8767_regulator_desc(LDO6),
475 s5m8767_regulator_desc(LDO7),
476 s5m8767_regulator_desc(LDO8),
477 s5m8767_regulator_desc(LDO9),
478 s5m8767_regulator_desc(LDO10),
479 s5m8767_regulator_desc(LDO11),
480 s5m8767_regulator_desc(LDO12),
481 s5m8767_regulator_desc(LDO13),
482 s5m8767_regulator_desc(LDO14),
483 s5m8767_regulator_desc(LDO15),
484 s5m8767_regulator_desc(LDO16),
485 s5m8767_regulator_desc(LDO17),
486 s5m8767_regulator_desc(LDO18),
487 s5m8767_regulator_desc(LDO19),
488 s5m8767_regulator_desc(LDO20),
489 s5m8767_regulator_desc(LDO21),
490 s5m8767_regulator_desc(LDO22),
491 s5m8767_regulator_desc(LDO23),
492 s5m8767_regulator_desc(LDO24),
493 s5m8767_regulator_desc(LDO25),
494 s5m8767_regulator_desc(LDO26),
495 s5m8767_regulator_desc(LDO27),
496 s5m8767_regulator_desc(LDO28),
497 s5m8767_regulator_desc(BUCK1),
498 s5m8767_regulator_desc(BUCK2),
499 s5m8767_regulator_desc(BUCK3),
500 s5m8767_regulator_desc(BUCK4),
501 s5m8767_regulator_desc(BUCK5),
502 s5m8767_regulator_desc(BUCK6),
503 s5m8767_regulator_desc(BUCK7),
504 s5m8767_regulator_desc(BUCK8),
505 s5m8767_regulator_desc(BUCK9),
9767ec7f
SK		 506};
507
508static __devinit int s5m8767_pmic_probe(struct platform_device *pdev)
509{
510 struct s5m87xx_dev *iodev = dev_get_drvdata(pdev->dev.parent);
511 struct s5m_platform_data *pdata = dev_get_platdata(iodev->dev);
c172708d 512 struct regulator_config config = { };
9767ec7f
SK		 513 struct regulator_dev **rdev;
514 struct s5m8767_info *s5m8767;
22cd2fef 515 int i, ret, size;
9767ec7f
SK		 516
517 if (!pdata) {
518 dev_err(pdev->dev.parent, "Platform data not supplied\n");
519 return -ENODEV;
520 }
521
6c4efe24
AL		 522 if (pdata->buck2_gpiodvs) {
523 if (pdata->buck3_gpiodvs || pdata->buck4_gpiodvs) {
524 dev_err(&pdev->dev, "S5M8767 GPIO DVS NOT VALID\n");
525 return -EINVAL;
526 }
527 }
528
529 if (pdata->buck3_gpiodvs) {
530 if (pdata->buck2_gpiodvs || pdata->buck4_gpiodvs) {
531 dev_err(&pdev->dev, "S5M8767 GPIO DVS NOT VALID\n");
532 return -EINVAL;
533 }
534 }
535
536 if (pdata->buck4_gpiodvs) {
537 if (pdata->buck2_gpiodvs || pdata->buck3_gpiodvs) {
538 dev_err(&pdev->dev, "S5M8767 GPIO DVS NOT VALID\n");
539 return -EINVAL;
540 }
541 }
542
9767ec7f
SK		 543 s5m8767 = devm_kzalloc(&pdev->dev, sizeof(struct s5m8767_info),
544 GFP_KERNEL);
545 if (!s5m8767)
546 return -ENOMEM;
547
548 size = sizeof(struct regulator_dev *) * (S5M8767_REG_MAX - 2);
549 s5m8767->rdev = devm_kzalloc(&pdev->dev, size, GFP_KERNEL);
550 if (!s5m8767->rdev)
551 return -ENOMEM;
552
553 rdev = s5m8767->rdev;
554 s5m8767->dev = &pdev->dev;
555 s5m8767->iodev = iodev;
556 s5m8767->num_regulators = S5M8767_REG_MAX - 2;
557 platform_set_drvdata(pdev, s5m8767);
9767ec7f
SK		 558
559 s5m8767->buck_gpioindex = pdata->buck_default_idx;
560 s5m8767->buck2_gpiodvs = pdata->buck2_gpiodvs;
561 s5m8767->buck3_gpiodvs = pdata->buck3_gpiodvs;
562 s5m8767->buck4_gpiodvs = pdata->buck4_gpiodvs;
563 s5m8767->buck_gpios[0] = pdata->buck_gpios[0];
564 s5m8767->buck_gpios[1] = pdata->buck_gpios[1];
565 s5m8767->buck_gpios[2] = pdata->buck_gpios[2];
566 s5m8767->ramp_delay = pdata->buck_ramp_delay;
567 s5m8767->buck2_ramp = pdata->buck2_ramp_enable;
568 s5m8767->buck3_ramp = pdata->buck3_ramp_enable;
569 s5m8767->buck4_ramp = pdata->buck4_ramp_enable;
7e44bb83 570 s5m8767->opmode = pdata->opmode;
9767ec7f
SK		 571
572 for (i = 0; i < 8; i++) {
573 if (s5m8767->buck2_gpiodvs) {
574 s5m8767->buck2_vol[i] =
5b5e977c 575 s5m8767_convert_voltage_to_sel(
9767ec7f
SK		 576 &buck_voltage_val2,
577 pdata->buck2_voltage[i],
578 pdata->buck2_voltage[i] +
579 buck_voltage_val2.step);
580 }
581
582 if (s5m8767->buck3_gpiodvs) {
583 s5m8767->buck3_vol[i] =
5b5e977c 584 s5m8767_convert_voltage_to_sel(
9767ec7f
SK		 585 &buck_voltage_val2,
586 pdata->buck3_voltage[i],
587 pdata->buck3_voltage[i] +
588 buck_voltage_val2.step);
589 }
590
591 if (s5m8767->buck4_gpiodvs) {
592 s5m8767->buck4_vol[i] =
5b5e977c 593 s5m8767_convert_voltage_to_sel(
9767ec7f
SK		 594 &buck_voltage_val2,
595 pdata->buck4_voltage[i],
596 pdata->buck4_voltage[i] +
597 buck_voltage_val2.step);
598 }
599 }
600
601 if (pdata->buck2_gpiodvs || pdata->buck3_gpiodvs ||
602 pdata->buck4_gpiodvs) {
603 if (gpio_is_valid(pdata->buck_gpios[0]) &&
604 gpio_is_valid(pdata->buck_gpios[1]) &&
605 gpio_is_valid(pdata->buck_gpios[2])) {
606 ret = gpio_request(pdata->buck_gpios[0],
607 "S5M8767 SET1");
608 if (ret == -EBUSY)
609 dev_warn(&pdev->dev, "Duplicated gpio request for SET1\n");
610
611 ret = gpio_request(pdata->buck_gpios[1],
612 "S5M8767 SET2");
613 if (ret == -EBUSY)
614 dev_warn(&pdev->dev, "Duplicated gpio request for SET2\n");
615
616 ret = gpio_request(pdata->buck_gpios[2],
617 "S5M8767 SET3");
618 if (ret == -EBUSY)
619 dev_warn(&pdev->dev, "Duplicated gpio request for SET3\n");
620 /* SET1 GPIO */
621 gpio_direction_output(pdata->buck_gpios[0],
622 (s5m8767->buck_gpioindex >> 2) & 0x1);
623 /* SET2 GPIO */
624 gpio_direction_output(pdata->buck_gpios[1],
625 (s5m8767->buck_gpioindex >> 1) & 0x1);
626 /* SET3 GPIO */
627 gpio_direction_output(pdata->buck_gpios[2],
628 (s5m8767->buck_gpioindex >> 0) & 0x1);
629 ret = 0;
630 } else {
631 dev_err(&pdev->dev, "GPIO NOT VALID\n");
632 ret = -EINVAL;
633 return ret;
634 }
635 }
636
9767ec7f
SK		 637 s5m_reg_update(s5m8767->iodev, S5M8767_REG_BUCK2CTRL,
638 (pdata->buck2_gpiodvs) ? (1 << 1) : (0 << 1), 1 << 1);
639 s5m_reg_update(s5m8767->iodev, S5M8767_REG_BUCK3CTRL,
640 (pdata->buck3_gpiodvs) ? (1 << 1) : (0 << 1), 1 << 1);
641 s5m_reg_update(s5m8767->iodev, S5M8767_REG_BUCK4CTRL,
642 (pdata->buck4_gpiodvs) ? (1 << 1) : (0 << 1), 1 << 1);
643
644 /* Initialize GPIO DVS registers */
645 for (i = 0; i < 8; i++) {
646 if (s5m8767->buck2_gpiodvs) {
647 s5m_reg_write(s5m8767->iodev, S5M8767_REG_BUCK2DVS1 + i,
648 s5m8767->buck2_vol[i]);
649 }
650
651 if (s5m8767->buck3_gpiodvs) {
652 s5m_reg_write(s5m8767->iodev, S5M8767_REG_BUCK3DVS1 + i,
653 s5m8767->buck3_vol[i]);
654 }
655
656 if (s5m8767->buck4_gpiodvs) {
657 s5m_reg_write(s5m8767->iodev, S5M8767_REG_BUCK4DVS1 + i,
658 s5m8767->buck4_vol[i]);
659 }
660 }
9767ec7f
SK		 661
662 if (s5m8767->buck2_ramp)
663 s5m_reg_update(s5m8767->iodev, S5M8767_REG_DVSRAMP, 0x08, 0x08);
664
665 if (s5m8767->buck3_ramp)
666 s5m_reg_update(s5m8767->iodev, S5M8767_REG_DVSRAMP, 0x04, 0x04);
667
668 if (s5m8767->buck4_ramp)
669 s5m_reg_update(s5m8767->iodev, S5M8767_REG_DVSRAMP, 0x02, 0x02);
670
671 if (s5m8767->buck2_ramp || s5m8767->buck3_ramp
672 || s5m8767->buck4_ramp) {
673 switch (s5m8767->ramp_delay) {
674 case 15:
675 s5m_reg_update(s5m8767->iodev, S5M8767_REG_DVSRAMP,
676 0xc0, 0xf0);
047ec220 677 break;
9767ec7f
SK		 678 case 25:
679 s5m_reg_update(s5m8767->iodev, S5M8767_REG_DVSRAMP,
680 0xd0, 0xf0);
047ec220 681 break;
9767ec7f
SK		 682 case 50:
683 s5m_reg_update(s5m8767->iodev, S5M8767_REG_DVSRAMP,
684 0xe0, 0xf0);
047ec220 685 break;
9767ec7f
SK		 686 case 100:
687 s5m_reg_update(s5m8767->iodev, S5M8767_REG_DVSRAMP,
688 0xf0, 0xf0);
047ec220 689 break;
9767ec7f
SK		 690 default:
691 s5m_reg_update(s5m8767->iodev, S5M8767_REG_DVSRAMP,
692 0x90, 0xf0);
693 }
694 }
695
696 for (i = 0; i < pdata->num_regulators; i++) {
697 const struct s5m_voltage_desc *desc;
698 int id = pdata->regulators[i].id;
699
700 desc = reg_voltage_map[id];
701 if (desc)
702 regulators[id].n_voltages =
703 (desc->max - desc->min) / desc->step + 1;
704
c172708d
MB		 705 config.dev = s5m8767->dev;
706 config.init_data = pdata->regulators[i].initdata;
707 config.driver_data = s5m8767;
708
709 rdev[i] = regulator_register(&regulators[id], &config);
9767ec7f
SK		 710 if (IS_ERR(rdev[i])) {
711 ret = PTR_ERR(rdev[i]);
712 dev_err(s5m8767->dev, "regulator init failed for %d\n",
713 id);
714 rdev[i] = NULL;
715 goto err;
716 }
717 }
718
719 return 0;
720err:
721 for (i = 0; i < s5m8767->num_regulators; i++)
722 if (rdev[i])
723 regulator_unregister(rdev[i]);
724
725 return ret;
726}
727
728static int __devexit s5m8767_pmic_remove(struct platform_device *pdev)
729{
730 struct s5m8767_info *s5m8767 = platform_get_drvdata(pdev);
731 struct regulator_dev **rdev = s5m8767->rdev;
732 int i;
733
734 for (i = 0; i < s5m8767->num_regulators; i++)
735 if (rdev[i])
736 regulator_unregister(rdev[i]);
737
738 return 0;
739}
740
741static const struct platform_device_id s5m8767_pmic_id[] = {
742 { "s5m8767-pmic", 0},
743 { },
744};
745MODULE_DEVICE_TABLE(platform, s5m8767_pmic_id);
746
747static struct platform_driver s5m8767_pmic_driver = {
748 .driver = {
749 .name = "s5m8767-pmic",
750 .owner = THIS_MODULE,
751 },
752 .probe = s5m8767_pmic_probe,
753 .remove = __devexit_p(s5m8767_pmic_remove),
754 .id_table = s5m8767_pmic_id,
755};
756
757static int __init s5m8767_pmic_init(void)
758{
759 return platform_driver_register(&s5m8767_pmic_driver);
760}
761subsys_initcall(s5m8767_pmic_init);
762
763static void __exit s5m8767_pmic_exit(void)
764{
765 platform_driver_unregister(&s5m8767_pmic_driver);
766}
767module_exit(s5m8767_pmic_exit);
768
769/* Module information */
770MODULE_AUTHOR("Sangbeom Kim <sbkim73@samsung.com>");
771MODULE_DESCRIPTION("SAMSUNG S5M8767 Regulator Driver");
772MODULE_LICENSE("GPL");
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