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pvrusb2: reduce stack usage pvr2_eeprom_analyze()
[linux/fpc-iii.git] / drivers / regulator / palmas-regulator.c
blobf11d41dad9c13b9d581fe6fa122f1898bc140e55
1 /*
2 * Driver for Regulator part of Palmas PMIC Chips
3 *
4 * Copyright 2011-2013 Texas Instruments Inc.
5 *
6 * Author: Graeme Gregory <gg@slimlogic.co.uk>
7 * Author: Ian Lartey <ian@slimlogic.co.uk>
8 *
9 * This program is free software; you can redistribute it and/or modify it
10 * under the terms of the GNU General Public License as published by the
11 * Free Software Foundation; either version 2 of the License, or (at your
12 * option) any later version.
13 *
14 */
15
16 #include <linux/kernel.h>
17 #include <linux/module.h>
18 #include <linux/init.h>
19 #include <linux/err.h>
20 #include <linux/platform_device.h>
21 #include <linux/regulator/driver.h>
22 #include <linux/regulator/machine.h>
23 #include <linux/slab.h>
24 #include <linux/regmap.h>
25 #include <linux/mfd/palmas.h>
26 #include <linux/of.h>
27 #include <linux/of_platform.h>
28 #include <linux/regulator/of_regulator.h>
29
30 static const struct regulator_linear_range smps_low_ranges[] = {
31 REGULATOR_LINEAR_RANGE(0, 0x0, 0x0, 0),
32 REGULATOR_LINEAR_RANGE(500000, 0x1, 0x6, 0),
33 REGULATOR_LINEAR_RANGE(510000, 0x7, 0x79, 10000),
34 REGULATOR_LINEAR_RANGE(1650000, 0x7A, 0x7f, 0),
35 };
36
37 static const struct regulator_linear_range smps_high_ranges[] = {
38 REGULATOR_LINEAR_RANGE(0, 0x0, 0x0, 0),
39 REGULATOR_LINEAR_RANGE(1000000, 0x1, 0x6, 0),
40 REGULATOR_LINEAR_RANGE(1020000, 0x7, 0x79, 20000),
41 REGULATOR_LINEAR_RANGE(3300000, 0x7A, 0x7f, 0),
42 };
43
44 static struct palmas_regs_info palmas_generic_regs_info[] = {
45 {
46 .name = "SMPS12",
47 .sname = "smps1-in",
48 .vsel_addr = PALMAS_SMPS12_VOLTAGE,
49 .ctrl_addr = PALMAS_SMPS12_CTRL,
50 .tstep_addr = PALMAS_SMPS12_TSTEP,
51 .sleep_id = PALMAS_EXTERNAL_REQSTR_ID_SMPS12,
52 },
53 {
54 .name = "SMPS123",
55 .sname = "smps1-in",
56 .vsel_addr = PALMAS_SMPS12_VOLTAGE,
57 .ctrl_addr = PALMAS_SMPS12_CTRL,
58 .tstep_addr = PALMAS_SMPS12_TSTEP,
59 .sleep_id = PALMAS_EXTERNAL_REQSTR_ID_SMPS12,
60 },
61 {
62 .name = "SMPS3",
63 .sname = "smps3-in",
64 .vsel_addr = PALMAS_SMPS3_VOLTAGE,
65 .ctrl_addr = PALMAS_SMPS3_CTRL,
66 .sleep_id = PALMAS_EXTERNAL_REQSTR_ID_SMPS3,
67 },
68 {
69 .name = "SMPS45",
70 .sname = "smps4-in",
71 .vsel_addr = PALMAS_SMPS45_VOLTAGE,
72 .ctrl_addr = PALMAS_SMPS45_CTRL,
73 .tstep_addr = PALMAS_SMPS45_TSTEP,
74 .sleep_id = PALMAS_EXTERNAL_REQSTR_ID_SMPS45,
75 },
76 {
77 .name = "SMPS457",
78 .sname = "smps4-in",
79 .vsel_addr = PALMAS_SMPS45_VOLTAGE,
80 .ctrl_addr = PALMAS_SMPS45_CTRL,
81 .tstep_addr = PALMAS_SMPS45_TSTEP,
82 .sleep_id = PALMAS_EXTERNAL_REQSTR_ID_SMPS45,
83 },
84 {
85 .name = "SMPS6",
86 .sname = "smps6-in",
87 .vsel_addr = PALMAS_SMPS6_VOLTAGE,
88 .ctrl_addr = PALMAS_SMPS6_CTRL,
89 .tstep_addr = PALMAS_SMPS6_TSTEP,
90 .sleep_id = PALMAS_EXTERNAL_REQSTR_ID_SMPS6,
91 },
92 {
93 .name = "SMPS7",
94 .sname = "smps7-in",
95 .vsel_addr = PALMAS_SMPS7_VOLTAGE,
96 .ctrl_addr = PALMAS_SMPS7_CTRL,
97 .sleep_id = PALMAS_EXTERNAL_REQSTR_ID_SMPS7,
98 },
99 {
100 .name = "SMPS8",
101 .sname = "smps8-in",
102 .vsel_addr = PALMAS_SMPS8_VOLTAGE,
103 .ctrl_addr = PALMAS_SMPS8_CTRL,
104 .tstep_addr = PALMAS_SMPS8_TSTEP,
105 .sleep_id = PALMAS_EXTERNAL_REQSTR_ID_SMPS8,
106 },
107 {
108 .name = "SMPS9",
109 .sname = "smps9-in",
110 .vsel_addr = PALMAS_SMPS9_VOLTAGE,
111 .ctrl_addr = PALMAS_SMPS9_CTRL,
112 .sleep_id = PALMAS_EXTERNAL_REQSTR_ID_SMPS9,
113 },
114 {
115 .name = "SMPS10_OUT2",
116 .sname = "smps10-in",
117 .ctrl_addr = PALMAS_SMPS10_CTRL,
118 .sleep_id = PALMAS_EXTERNAL_REQSTR_ID_SMPS10,
119 },
120 {
121 .name = "SMPS10_OUT1",
122 .sname = "smps10-out2",
123 .ctrl_addr = PALMAS_SMPS10_CTRL,
124 .sleep_id = PALMAS_EXTERNAL_REQSTR_ID_SMPS10,
125 },
126 {
127 .name = "LDO1",
128 .sname = "ldo1-in",
129 .vsel_addr = PALMAS_LDO1_VOLTAGE,
130 .ctrl_addr = PALMAS_LDO1_CTRL,
131 .sleep_id = PALMAS_EXTERNAL_REQSTR_ID_LDO1,
132 },
133 {
134 .name = "LDO2",
135 .sname = "ldo2-in",
136 .vsel_addr = PALMAS_LDO2_VOLTAGE,
137 .ctrl_addr = PALMAS_LDO2_CTRL,
138 .sleep_id = PALMAS_EXTERNAL_REQSTR_ID_LDO2,
139 },
140 {
141 .name = "LDO3",
142 .sname = "ldo3-in",
143 .vsel_addr = PALMAS_LDO3_VOLTAGE,
144 .ctrl_addr = PALMAS_LDO3_CTRL,
145 .sleep_id = PALMAS_EXTERNAL_REQSTR_ID_LDO3,
146 },
147 {
148 .name = "LDO4",
149 .sname = "ldo4-in",
150 .vsel_addr = PALMAS_LDO4_VOLTAGE,
151 .ctrl_addr = PALMAS_LDO4_CTRL,
152 .sleep_id = PALMAS_EXTERNAL_REQSTR_ID_LDO4,
153 },
154 {
155 .name = "LDO5",
156 .sname = "ldo5-in",
157 .vsel_addr = PALMAS_LDO5_VOLTAGE,
158 .ctrl_addr = PALMAS_LDO5_CTRL,
159 .sleep_id = PALMAS_EXTERNAL_REQSTR_ID_LDO5,
160 },
161 {
162 .name = "LDO6",
163 .sname = "ldo6-in",
164 .vsel_addr = PALMAS_LDO6_VOLTAGE,
165 .ctrl_addr = PALMAS_LDO6_CTRL,
166 .sleep_id = PALMAS_EXTERNAL_REQSTR_ID_LDO6,
167 },
168 {
169 .name = "LDO7",
170 .sname = "ldo7-in",
171 .vsel_addr = PALMAS_LDO7_VOLTAGE,
172 .ctrl_addr = PALMAS_LDO7_CTRL,
173 .sleep_id = PALMAS_EXTERNAL_REQSTR_ID_LDO7,
174 },
175 {
176 .name = "LDO8",
177 .sname = "ldo8-in",
178 .vsel_addr = PALMAS_LDO8_VOLTAGE,
179 .ctrl_addr = PALMAS_LDO8_CTRL,
180 .sleep_id = PALMAS_EXTERNAL_REQSTR_ID_LDO8,
181 },
182 {
183 .name = "LDO9",
184 .sname = "ldo9-in",
185 .vsel_addr = PALMAS_LDO9_VOLTAGE,
186 .ctrl_addr = PALMAS_LDO9_CTRL,
187 .sleep_id = PALMAS_EXTERNAL_REQSTR_ID_LDO9,
188 },
189 {
190 .name = "LDOLN",
191 .sname = "ldoln-in",
192 .vsel_addr = PALMAS_LDOLN_VOLTAGE,
193 .ctrl_addr = PALMAS_LDOLN_CTRL,
194 .sleep_id = PALMAS_EXTERNAL_REQSTR_ID_LDOLN,
195 },
196 {
197 .name = "LDOUSB",
198 .sname = "ldousb-in",
199 .vsel_addr = PALMAS_LDOUSB_VOLTAGE,
200 .ctrl_addr = PALMAS_LDOUSB_CTRL,
201 .sleep_id = PALMAS_EXTERNAL_REQSTR_ID_LDOUSB,
202 },
203 {
204 .name = "REGEN1",
205 .ctrl_addr = PALMAS_REGEN1_CTRL,
206 .sleep_id = PALMAS_EXTERNAL_REQSTR_ID_REGEN1,
207 },
208 {
209 .name = "REGEN2",
210 .ctrl_addr = PALMAS_REGEN2_CTRL,
211 .sleep_id = PALMAS_EXTERNAL_REQSTR_ID_REGEN2,
212 },
213 {
214 .name = "REGEN3",
215 .ctrl_addr = PALMAS_REGEN3_CTRL,
216 .sleep_id = PALMAS_EXTERNAL_REQSTR_ID_REGEN3,
217 },
218 {
219 .name = "SYSEN1",
220 .ctrl_addr = PALMAS_SYSEN1_CTRL,
221 .sleep_id = PALMAS_EXTERNAL_REQSTR_ID_SYSEN1,
222 },
223 {
224 .name = "SYSEN2",
225 .ctrl_addr = PALMAS_SYSEN2_CTRL,
226 .sleep_id = PALMAS_EXTERNAL_REQSTR_ID_SYSEN2,
227 },
228 };
229
230 static struct palmas_regs_info tps65917_regs_info[] = {
231 {
232 .name = "SMPS1",
233 .sname = "smps1-in",
234 .vsel_addr = TPS65917_SMPS1_VOLTAGE,
235 .ctrl_addr = TPS65917_SMPS1_CTRL,
236 .sleep_id = TPS65917_EXTERNAL_REQSTR_ID_SMPS1,
237 },
238 {
239 .name = "SMPS2",
240 .sname = "smps2-in",
241 .vsel_addr = TPS65917_SMPS2_VOLTAGE,
242 .ctrl_addr = TPS65917_SMPS2_CTRL,
243 .sleep_id = TPS65917_EXTERNAL_REQSTR_ID_SMPS2,
244 },
245 {
246 .name = "SMPS3",
247 .sname = "smps3-in",
248 .vsel_addr = TPS65917_SMPS3_VOLTAGE,
249 .ctrl_addr = TPS65917_SMPS3_CTRL,
250 .sleep_id = TPS65917_EXTERNAL_REQSTR_ID_SMPS3,
251 },
252 {
253 .name = "SMPS4",
254 .sname = "smps4-in",
255 .vsel_addr = TPS65917_SMPS4_VOLTAGE,
256 .ctrl_addr = TPS65917_SMPS4_CTRL,
257 .sleep_id = TPS65917_EXTERNAL_REQSTR_ID_SMPS4,
258 },
259 {
260 .name = "SMPS5",
261 .sname = "smps5-in",
262 .vsel_addr = TPS65917_SMPS5_VOLTAGE,
263 .ctrl_addr = TPS65917_SMPS5_CTRL,
264 .sleep_id = TPS65917_EXTERNAL_REQSTR_ID_SMPS5,
265 },
266 {
267 .name = "LDO1",
268 .sname = "ldo1-in",
269 .vsel_addr = TPS65917_LDO1_VOLTAGE,
270 .ctrl_addr = TPS65917_LDO1_CTRL,
271 .sleep_id = TPS65917_EXTERNAL_REQSTR_ID_LDO1,
272 },
273 {
274 .name = "LDO2",
275 .sname = "ldo2-in",
276 .vsel_addr = TPS65917_LDO2_VOLTAGE,
277 .ctrl_addr = TPS65917_LDO2_CTRL,
278 .sleep_id = TPS65917_EXTERNAL_REQSTR_ID_LDO2,
279 },
280 {
281 .name = "LDO3",
282 .sname = "ldo3-in",
283 .vsel_addr = TPS65917_LDO3_VOLTAGE,
284 .ctrl_addr = TPS65917_LDO3_CTRL,
285 .sleep_id = TPS65917_EXTERNAL_REQSTR_ID_LDO3,
286 },
287 {
288 .name = "LDO4",
289 .sname = "ldo4-in",
290 .vsel_addr = TPS65917_LDO4_VOLTAGE,
291 .ctrl_addr = TPS65917_LDO4_CTRL,
292 .sleep_id = TPS65917_EXTERNAL_REQSTR_ID_LDO4,
293 },
294 {
295 .name = "LDO5",
296 .sname = "ldo5-in",
297 .vsel_addr = TPS65917_LDO5_VOLTAGE,
298 .ctrl_addr = TPS65917_LDO5_CTRL,
299 .sleep_id = TPS65917_EXTERNAL_REQSTR_ID_LDO5,
300 },
301 {
302 .name = "REGEN1",
303 .ctrl_addr = TPS65917_REGEN1_CTRL,
304 .sleep_id = TPS65917_EXTERNAL_REQSTR_ID_REGEN1,
305 },
306 {
307 .name = "REGEN2",
308 .ctrl_addr = TPS65917_REGEN2_CTRL,
309 .sleep_id = TPS65917_EXTERNAL_REQSTR_ID_REGEN2,
310 },
311 {
312 .name = "REGEN3",
313 .ctrl_addr = TPS65917_REGEN3_CTRL,
314 .sleep_id = TPS65917_EXTERNAL_REQSTR_ID_REGEN3,
315 },
316 };
317
318 #define EXTERNAL_REQUESTOR(_id, _offset, _pos) \
319 [PALMAS_EXTERNAL_REQSTR_ID_##_id] = { \
320 .id = PALMAS_EXTERNAL_REQSTR_ID_##_id, \
321 .reg_offset = _offset, \
322 .bit_pos = _pos, \
323 }
324
325 static struct palmas_sleep_requestor_info palma_sleep_req_info[] = {
326 EXTERNAL_REQUESTOR(REGEN1, 0, 0),
327 EXTERNAL_REQUESTOR(REGEN2, 0, 1),
328 EXTERNAL_REQUESTOR(SYSEN1, 0, 2),
329 EXTERNAL_REQUESTOR(SYSEN2, 0, 3),
330 EXTERNAL_REQUESTOR(CLK32KG, 0, 4),
331 EXTERNAL_REQUESTOR(CLK32KGAUDIO, 0, 5),
332 EXTERNAL_REQUESTOR(REGEN3, 0, 6),
333 EXTERNAL_REQUESTOR(SMPS12, 1, 0),
334 EXTERNAL_REQUESTOR(SMPS3, 1, 1),
335 EXTERNAL_REQUESTOR(SMPS45, 1, 2),
336 EXTERNAL_REQUESTOR(SMPS6, 1, 3),
337 EXTERNAL_REQUESTOR(SMPS7, 1, 4),
338 EXTERNAL_REQUESTOR(SMPS8, 1, 5),
339 EXTERNAL_REQUESTOR(SMPS9, 1, 6),
340 EXTERNAL_REQUESTOR(SMPS10, 1, 7),
341 EXTERNAL_REQUESTOR(LDO1, 2, 0),
342 EXTERNAL_REQUESTOR(LDO2, 2, 1),
343 EXTERNAL_REQUESTOR(LDO3, 2, 2),
344 EXTERNAL_REQUESTOR(LDO4, 2, 3),
345 EXTERNAL_REQUESTOR(LDO5, 2, 4),
346 EXTERNAL_REQUESTOR(LDO6, 2, 5),
347 EXTERNAL_REQUESTOR(LDO7, 2, 6),
348 EXTERNAL_REQUESTOR(LDO8, 2, 7),
349 EXTERNAL_REQUESTOR(LDO9, 3, 0),
350 EXTERNAL_REQUESTOR(LDOLN, 3, 1),
351 EXTERNAL_REQUESTOR(LDOUSB, 3, 2),
352 };
353
354 #define EXTERNAL_REQUESTOR_TPS65917(_id, _offset, _pos) \
355 [TPS65917_EXTERNAL_REQSTR_ID_##_id] = { \
356 .id = TPS65917_EXTERNAL_REQSTR_ID_##_id, \
357 .reg_offset = _offset, \
358 .bit_pos = _pos, \
359 }
360
361 static struct palmas_sleep_requestor_info tps65917_sleep_req_info[] = {
362 EXTERNAL_REQUESTOR_TPS65917(REGEN1, 0, 0),
363 EXTERNAL_REQUESTOR_TPS65917(REGEN2, 0, 1),
364 EXTERNAL_REQUESTOR_TPS65917(REGEN3, 0, 6),
365 EXTERNAL_REQUESTOR_TPS65917(SMPS1, 1, 0),
366 EXTERNAL_REQUESTOR_TPS65917(SMPS2, 1, 1),
367 EXTERNAL_REQUESTOR_TPS65917(SMPS3, 1, 2),
368 EXTERNAL_REQUESTOR_TPS65917(SMPS4, 1, 3),
369 EXTERNAL_REQUESTOR_TPS65917(SMPS5, 1, 4),
370 EXTERNAL_REQUESTOR_TPS65917(LDO1, 2, 0),
371 EXTERNAL_REQUESTOR_TPS65917(LDO2, 2, 1),
372 EXTERNAL_REQUESTOR_TPS65917(LDO3, 2, 2),
373 EXTERNAL_REQUESTOR_TPS65917(LDO4, 2, 3),
374 EXTERNAL_REQUESTOR_TPS65917(LDO5, 2, 4),
375 };
376
377 static unsigned int palmas_smps_ramp_delay[4] = {0, 10000, 5000, 2500};
378
379 #define SMPS_CTRL_MODE_OFF 0x00
380 #define SMPS_CTRL_MODE_ON 0x01
381 #define SMPS_CTRL_MODE_ECO 0x02
382 #define SMPS_CTRL_MODE_PWM 0x03
383
384 #define PALMAS_SMPS_NUM_VOLTAGES 122
385 #define PALMAS_SMPS10_NUM_VOLTAGES 2
386 #define PALMAS_LDO_NUM_VOLTAGES 50
387
388 #define SMPS10_VSEL (1<<3)
389 #define SMPS10_BOOST_EN (1<<2)
390 #define SMPS10_BYPASS_EN (1<<1)
391 #define SMPS10_SWITCH_EN (1<<0)
392
393 #define REGULATOR_SLAVE 0
394
395 static int palmas_smps_read(struct palmas *palmas, unsigned int reg,
396 unsigned int *dest)
397 {
398 unsigned int addr;
399
400 addr = PALMAS_BASE_TO_REG(PALMAS_SMPS_BASE, reg);
401
402 return regmap_read(palmas->regmap[REGULATOR_SLAVE], addr, dest);
403 }
404
405 static int palmas_smps_write(struct palmas *palmas, unsigned int reg,
406 unsigned int value)
407 {
408 unsigned int addr;
409
410 addr = PALMAS_BASE_TO_REG(PALMAS_SMPS_BASE, reg);
411
412 return regmap_write(palmas->regmap[REGULATOR_SLAVE], addr, value);
413 }
414
415 static int palmas_ldo_read(struct palmas *palmas, unsigned int reg,
416 unsigned int *dest)
417 {
418 unsigned int addr;
419
420 addr = PALMAS_BASE_TO_REG(PALMAS_LDO_BASE, reg);
421
422 return regmap_read(palmas->regmap[REGULATOR_SLAVE], addr, dest);
423 }
424
425 static int palmas_ldo_write(struct palmas *palmas, unsigned int reg,
426 unsigned int value)
427 {
428 unsigned int addr;
429
430 addr = PALMAS_BASE_TO_REG(PALMAS_LDO_BASE, reg);
431
432 return regmap_write(palmas->regmap[REGULATOR_SLAVE], addr, value);
433 }
434
435 static int palmas_set_mode_smps(struct regulator_dev *dev, unsigned int mode)
436 {
437 int id = rdev_get_id(dev);
438 struct palmas_pmic *pmic = rdev_get_drvdata(dev);
439 struct palmas_pmic_driver_data *ddata = pmic->palmas->pmic_ddata;
440 struct palmas_regs_info *rinfo = &ddata->palmas_regs_info[id];
441 unsigned int reg;
442 bool rail_enable = true;
443
444 palmas_smps_read(pmic->palmas, rinfo->ctrl_addr, &reg);
445
446 reg &= ~PALMAS_SMPS12_CTRL_MODE_ACTIVE_MASK;
447
448 if (reg == SMPS_CTRL_MODE_OFF)
449 rail_enable = false;
450
451 switch (mode) {
452 case REGULATOR_MODE_NORMAL:
453 reg |= SMPS_CTRL_MODE_ON;
454 break;
455 case REGULATOR_MODE_IDLE:
456 reg |= SMPS_CTRL_MODE_ECO;
457 break;
458 case REGULATOR_MODE_FAST:
459 reg |= SMPS_CTRL_MODE_PWM;
460 break;
461 default:
462 return -EINVAL;
463 }
464
465 pmic->current_reg_mode[id] = reg & PALMAS_SMPS12_CTRL_MODE_ACTIVE_MASK;
466 if (rail_enable)
467 palmas_smps_write(pmic->palmas, rinfo->ctrl_addr, reg);
468
469 /* Switch the enable value to ensure this is used for enable */
470 pmic->desc[id].enable_val = pmic->current_reg_mode[id];
471
472 return 0;
473 }
474
475 static unsigned int palmas_get_mode_smps(struct regulator_dev *dev)
476 {
477 struct palmas_pmic *pmic = rdev_get_drvdata(dev);
478 int id = rdev_get_id(dev);
479 unsigned int reg;
480
481 reg = pmic->current_reg_mode[id] & PALMAS_SMPS12_CTRL_MODE_ACTIVE_MASK;
482
483 switch (reg) {
484 case SMPS_CTRL_MODE_ON:
485 return REGULATOR_MODE_NORMAL;
486 case SMPS_CTRL_MODE_ECO:
487 return REGULATOR_MODE_IDLE;
488 case SMPS_CTRL_MODE_PWM:
489 return REGULATOR_MODE_FAST;
490 }
491
492 return 0;
493 }
494
495 static int palmas_smps_set_ramp_delay(struct regulator_dev *rdev,
496 int ramp_delay)
497 {
498 int id = rdev_get_id(rdev);
499 struct palmas_pmic *pmic = rdev_get_drvdata(rdev);
500 struct palmas_pmic_driver_data *ddata = pmic->palmas->pmic_ddata;
501 struct palmas_regs_info *rinfo = &ddata->palmas_regs_info[id];
502 unsigned int reg = 0;
503 int ret;
504
505 /* SMPS3 and SMPS7 do not have tstep_addr setting */
506 switch (id) {
507 case PALMAS_REG_SMPS3:
508 case PALMAS_REG_SMPS7:
509 return 0;
510 }
511
512 if (ramp_delay <= 0)
513 reg = 0;
514 else if (ramp_delay <= 2500)
515 reg = 3;
516 else if (ramp_delay <= 5000)
517 reg = 2;
518 else
519 reg = 1;
520
521 ret = palmas_smps_write(pmic->palmas, rinfo->tstep_addr, reg);
522 if (ret < 0) {
523 dev_err(pmic->palmas->dev, "TSTEP write failed: %d\n", ret);
524 return ret;
525 }
526
527 pmic->ramp_delay[id] = palmas_smps_ramp_delay[reg];
528 return ret;
529 }
530
531 static struct regulator_ops palmas_ops_smps = {
532 .is_enabled = regulator_is_enabled_regmap,
533 .enable = regulator_enable_regmap,
534 .disable = regulator_disable_regmap,
535 .set_mode = palmas_set_mode_smps,
536 .get_mode = palmas_get_mode_smps,
537 .get_voltage_sel = regulator_get_voltage_sel_regmap,
538 .set_voltage_sel = regulator_set_voltage_sel_regmap,
539 .list_voltage = regulator_list_voltage_linear_range,
540 .map_voltage = regulator_map_voltage_linear_range,
541 .set_voltage_time_sel = regulator_set_voltage_time_sel,
542 .set_ramp_delay = palmas_smps_set_ramp_delay,
543 };
544
545 static struct regulator_ops palmas_ops_ext_control_smps = {
546 .set_mode = palmas_set_mode_smps,
547 .get_mode = palmas_get_mode_smps,
548 .get_voltage_sel = regulator_get_voltage_sel_regmap,
549 .set_voltage_sel = regulator_set_voltage_sel_regmap,
550 .list_voltage = regulator_list_voltage_linear_range,
551 .map_voltage = regulator_map_voltage_linear_range,
552 .set_voltage_time_sel = regulator_set_voltage_time_sel,
553 .set_ramp_delay = palmas_smps_set_ramp_delay,
554 };
555
556 static struct regulator_ops palmas_ops_smps10 = {
557 .is_enabled = regulator_is_enabled_regmap,
558 .enable = regulator_enable_regmap,
559 .disable = regulator_disable_regmap,
560 .get_voltage_sel = regulator_get_voltage_sel_regmap,
561 .set_voltage_sel = regulator_set_voltage_sel_regmap,
562 .list_voltage = regulator_list_voltage_linear,
563 .map_voltage = regulator_map_voltage_linear,
564 .set_bypass = regulator_set_bypass_regmap,
565 .get_bypass = regulator_get_bypass_regmap,
566 };
567
568 static struct regulator_ops tps65917_ops_smps = {
569 .is_enabled = regulator_is_enabled_regmap,
570 .enable = regulator_enable_regmap,
571 .disable = regulator_disable_regmap,
572 .set_mode = palmas_set_mode_smps,
573 .get_mode = palmas_get_mode_smps,
574 .get_voltage_sel = regulator_get_voltage_sel_regmap,
575 .set_voltage_sel = regulator_set_voltage_sel_regmap,
576 .list_voltage = regulator_list_voltage_linear_range,
577 .map_voltage = regulator_map_voltage_linear_range,
578 .set_voltage_time_sel = regulator_set_voltage_time_sel,
579 };
580
581 static struct regulator_ops tps65917_ops_ext_control_smps = {
582 .set_mode = palmas_set_mode_smps,
583 .get_mode = palmas_get_mode_smps,
584 .get_voltage_sel = regulator_get_voltage_sel_regmap,
585 .set_voltage_sel = regulator_set_voltage_sel_regmap,
586 .list_voltage = regulator_list_voltage_linear_range,
587 .map_voltage = regulator_map_voltage_linear_range,
588 };
589
590 static int palmas_is_enabled_ldo(struct regulator_dev *dev)
591 {
592 int id = rdev_get_id(dev);
593 struct palmas_pmic *pmic = rdev_get_drvdata(dev);
594 struct palmas_pmic_driver_data *ddata = pmic->palmas->pmic_ddata;
595 struct palmas_regs_info *rinfo = &ddata->palmas_regs_info[id];
596 unsigned int reg;
597
598 palmas_ldo_read(pmic->palmas, rinfo->ctrl_addr, &reg);
599
600 reg &= PALMAS_LDO1_CTRL_STATUS;
601
602 return !!(reg);
603 }
604
605 static struct regulator_ops palmas_ops_ldo = {
606 .is_enabled = palmas_is_enabled_ldo,
607 .enable = regulator_enable_regmap,
608 .disable = regulator_disable_regmap,
609 .get_voltage_sel = regulator_get_voltage_sel_regmap,
610 .set_voltage_sel = regulator_set_voltage_sel_regmap,
611 .list_voltage = regulator_list_voltage_linear,
612 .map_voltage = regulator_map_voltage_linear,
613 };
614
615 static struct regulator_ops palmas_ops_ldo9 = {
616 .is_enabled = palmas_is_enabled_ldo,
617 .enable = regulator_enable_regmap,
618 .disable = regulator_disable_regmap,
619 .get_voltage_sel = regulator_get_voltage_sel_regmap,
620 .set_voltage_sel = regulator_set_voltage_sel_regmap,
621 .list_voltage = regulator_list_voltage_linear,
622 .map_voltage = regulator_map_voltage_linear,
623 .set_bypass = regulator_set_bypass_regmap,
624 .get_bypass = regulator_get_bypass_regmap,
625 };
626
627 static struct regulator_ops palmas_ops_ext_control_ldo = {
628 .get_voltage_sel = regulator_get_voltage_sel_regmap,
629 .set_voltage_sel = regulator_set_voltage_sel_regmap,
630 .list_voltage = regulator_list_voltage_linear,
631 .map_voltage = regulator_map_voltage_linear,
632 };
633
634 static struct regulator_ops palmas_ops_extreg = {
635 .is_enabled = regulator_is_enabled_regmap,
636 .enable = regulator_enable_regmap,
637 .disable = regulator_disable_regmap,
638 };
639
640 static struct regulator_ops palmas_ops_ext_control_extreg = {
641 };
642
643 static struct regulator_ops tps65917_ops_ldo = {
644 .is_enabled = palmas_is_enabled_ldo,
645 .enable = regulator_enable_regmap,
646 .disable = regulator_disable_regmap,
647 .get_voltage_sel = regulator_get_voltage_sel_regmap,
648 .set_voltage_sel = regulator_set_voltage_sel_regmap,
649 .list_voltage = regulator_list_voltage_linear,
650 .map_voltage = regulator_map_voltage_linear,
651 .set_voltage_time_sel = regulator_set_voltage_time_sel,
652 };
653
654 static struct regulator_ops tps65917_ops_ldo_1_2 = {
655 .is_enabled = palmas_is_enabled_ldo,
656 .enable = regulator_enable_regmap,
657 .disable = regulator_disable_regmap,
658 .get_voltage_sel = regulator_get_voltage_sel_regmap,
659 .set_voltage_sel = regulator_set_voltage_sel_regmap,
660 .list_voltage = regulator_list_voltage_linear,
661 .map_voltage = regulator_map_voltage_linear,
662 .set_voltage_time_sel = regulator_set_voltage_time_sel,
663 .set_bypass = regulator_set_bypass_regmap,
664 .get_bypass = regulator_get_bypass_regmap,
665 };
666
667 static int palmas_regulator_config_external(struct palmas *palmas, int id,
668 struct palmas_reg_init *reg_init)
669 {
670 struct palmas_pmic_driver_data *ddata = palmas->pmic_ddata;
671 struct palmas_regs_info *rinfo = &ddata->palmas_regs_info[id];
672 int ret;
673
674 ret = palmas_ext_control_req_config(palmas, rinfo->sleep_id,
675 reg_init->roof_floor, true);
676 if (ret < 0)
677 dev_err(palmas->dev,
678 "Ext control config for regulator %d failed %d\n",
679 id, ret);
680 return ret;
681 }
682
683 /*
684 * setup the hardware based sleep configuration of the SMPS/LDO regulators
685 * from the platform data. This is different to the software based control
686 * supported by the regulator framework as it is controlled by toggling
687 * pins on the PMIC such as PREQ, SYSEN, ...
688 */
689 static int palmas_smps_init(struct palmas *palmas, int id,
690 struct palmas_reg_init *reg_init)
691 {
692 unsigned int reg;
693 int ret;
694 struct palmas_pmic_driver_data *ddata = palmas->pmic_ddata;
695 struct palmas_regs_info *rinfo = &ddata->palmas_regs_info[id];
696 unsigned int addr = rinfo->ctrl_addr;
697
698 ret = palmas_smps_read(palmas, addr, &reg);
699 if (ret)
700 return ret;
701
702 switch (id) {
703 case PALMAS_REG_SMPS10_OUT1:
704 case PALMAS_REG_SMPS10_OUT2:
705 reg &= ~PALMAS_SMPS10_CTRL_MODE_SLEEP_MASK;
706 if (reg_init->mode_sleep)
707 reg |= reg_init->mode_sleep <<
708 PALMAS_SMPS10_CTRL_MODE_SLEEP_SHIFT;
709 break;
710 default:
711 if (reg_init->warm_reset)
712 reg |= PALMAS_SMPS12_CTRL_WR_S;
713 else
714 reg &= ~PALMAS_SMPS12_CTRL_WR_S;
715
716 if (reg_init->roof_floor)
717 reg |= PALMAS_SMPS12_CTRL_ROOF_FLOOR_EN;
718 else
719 reg &= ~PALMAS_SMPS12_CTRL_ROOF_FLOOR_EN;
720
721 reg &= ~PALMAS_SMPS12_CTRL_MODE_SLEEP_MASK;
722 if (reg_init->mode_sleep)
723 reg |= reg_init->mode_sleep <<
724 PALMAS_SMPS12_CTRL_MODE_SLEEP_SHIFT;
725 }
726
727 ret = palmas_smps_write(palmas, addr, reg);
728 if (ret)
729 return ret;
730
731 if (rinfo->vsel_addr && reg_init->vsel) {
732
733 reg = reg_init->vsel;
734
735 ret = palmas_smps_write(palmas, rinfo->vsel_addr, reg);
736 if (ret)
737 return ret;
738 }
739
740 if (reg_init->roof_floor && (id != PALMAS_REG_SMPS10_OUT1) &&
741 (id != PALMAS_REG_SMPS10_OUT2)) {
742 /* Enable externally controlled regulator */
743 ret = palmas_smps_read(palmas, addr, &reg);
744 if (ret < 0)
745 return ret;
746
747 if (!(reg & PALMAS_SMPS12_CTRL_MODE_ACTIVE_MASK)) {
748 reg |= SMPS_CTRL_MODE_ON;
749 ret = palmas_smps_write(palmas, addr, reg);
750 if (ret < 0)
751 return ret;
752 }
753 return palmas_regulator_config_external(palmas, id, reg_init);
754 }
755 return 0;
756 }
757
758 static int palmas_ldo_init(struct palmas *palmas, int id,
759 struct palmas_reg_init *reg_init)
760 {
761 unsigned int reg;
762 unsigned int addr;
763 int ret;
764 struct palmas_pmic_driver_data *ddata = palmas->pmic_ddata;
765 struct palmas_regs_info *rinfo = &ddata->palmas_regs_info[id];
766
767 addr = rinfo->ctrl_addr;
768
769 ret = palmas_ldo_read(palmas, addr, &reg);
770 if (ret)
771 return ret;
772
773 if (reg_init->warm_reset)
774 reg |= PALMAS_LDO1_CTRL_WR_S;
775 else
776 reg &= ~PALMAS_LDO1_CTRL_WR_S;
777
778 if (reg_init->mode_sleep)
779 reg |= PALMAS_LDO1_CTRL_MODE_SLEEP;
780 else
781 reg &= ~PALMAS_LDO1_CTRL_MODE_SLEEP;
782
783 ret = palmas_ldo_write(palmas, addr, reg);
784 if (ret)
785 return ret;
786
787 if (reg_init->roof_floor) {
788 /* Enable externally controlled regulator */
789 ret = palmas_update_bits(palmas, PALMAS_LDO_BASE,
790 addr, PALMAS_LDO1_CTRL_MODE_ACTIVE,
791 PALMAS_LDO1_CTRL_MODE_ACTIVE);
792 if (ret < 0) {
793 dev_err(palmas->dev,
794 "LDO Register 0x%02x update failed %d\n",
795 addr, ret);
796 return ret;
797 }
798 return palmas_regulator_config_external(palmas, id, reg_init);
799 }
800 return 0;
801 }
802
803 static int palmas_extreg_init(struct palmas *palmas, int id,
804 struct palmas_reg_init *reg_init)
805 {
806 unsigned int addr;
807 int ret;
808 unsigned int val = 0;
809 struct palmas_pmic_driver_data *ddata = palmas->pmic_ddata;
810 struct palmas_regs_info *rinfo = &ddata->palmas_regs_info[id];
811
812 addr = rinfo->ctrl_addr;
813
814 if (reg_init->mode_sleep)
815 val = PALMAS_REGEN1_CTRL_MODE_SLEEP;
816
817 ret = palmas_update_bits(palmas, PALMAS_RESOURCE_BASE,
818 addr, PALMAS_REGEN1_CTRL_MODE_SLEEP, val);
819 if (ret < 0) {
820 dev_err(palmas->dev, "Resource reg 0x%02x update failed %d\n",
821 addr, ret);
822 return ret;
823 }
824
825 if (reg_init->roof_floor) {
826 /* Enable externally controlled regulator */
827 ret = palmas_update_bits(palmas, PALMAS_RESOURCE_BASE,
828 addr, PALMAS_REGEN1_CTRL_MODE_ACTIVE,
829 PALMAS_REGEN1_CTRL_MODE_ACTIVE);
830 if (ret < 0) {
831 dev_err(palmas->dev,
832 "Resource Register 0x%02x update failed %d\n",
833 addr, ret);
834 return ret;
835 }
836 return palmas_regulator_config_external(palmas, id, reg_init);
837 }
838 return 0;
839 }
840
841 static void palmas_enable_ldo8_track(struct palmas *palmas)
842 {
843 unsigned int reg;
844 unsigned int addr;
845 int ret;
846 struct palmas_pmic_driver_data *ddata = palmas->pmic_ddata;
847 struct palmas_regs_info *rinfo;
848
849 rinfo = &ddata->palmas_regs_info[PALMAS_REG_LDO8];
850 addr = rinfo->ctrl_addr;
851
852 ret = palmas_ldo_read(palmas, addr, &reg);
853 if (ret) {
854 dev_err(palmas->dev, "Error in reading ldo8 control reg\n");
855 return;
856 }
857
858 reg |= PALMAS_LDO8_CTRL_LDO_TRACKING_EN;
859 ret = palmas_ldo_write(palmas, addr, reg);
860 if (ret < 0) {
861 dev_err(palmas->dev, "Error in enabling tracking mode\n");
862 return;
863 }
864 /*
865 * When SMPS45 is set to off and LDO8 tracking is enabled, the LDO8
866 * output is defined by the LDO8_VOLTAGE.VSEL register divided by two,
867 * and can be set from 0.45 to 1.65 V.
868 */
869 addr = rinfo->vsel_addr;
870 ret = palmas_ldo_read(palmas, addr, &reg);
871 if (ret) {
872 dev_err(palmas->dev, "Error in reading ldo8 voltage reg\n");
873 return;
874 }
875
876 reg = (reg << 1) & PALMAS_LDO8_VOLTAGE_VSEL_MASK;
877 ret = palmas_ldo_write(palmas, addr, reg);
878 if (ret < 0)
879 dev_err(palmas->dev, "Error in setting ldo8 voltage reg\n");
880
881 return;
882 }
883
884 static int palmas_ldo_registration(struct palmas_pmic *pmic,
885 struct palmas_pmic_driver_data *ddata,
886 struct palmas_pmic_platform_data *pdata,
887 const char *pdev_name,
888 struct regulator_config config)
889 {
890 int id, ret;
891 struct regulator_dev *rdev;
892 struct palmas_reg_init *reg_init;
893 struct palmas_regs_info *rinfo;
894 struct regulator_desc *desc;
895
896 for (id = ddata->ldo_begin; id < ddata->max_reg; id++) {
897 if (pdata && pdata->reg_init[id])
898 reg_init = pdata->reg_init[id];
899 else
900 reg_init = NULL;
901
902 rinfo = &ddata->palmas_regs_info[id];
903 /* Miss out regulators which are not available due
904 * to alternate functions.
905 */
906
907 /* Register the regulators */
908 desc = &pmic->desc[id];
909 desc->name = rinfo->name;
910 desc->id = id;
911 desc->type = REGULATOR_VOLTAGE;
912 desc->owner = THIS_MODULE;
913
914 if (id < PALMAS_REG_REGEN1) {
915 desc->n_voltages = PALMAS_LDO_NUM_VOLTAGES;
916 if (reg_init && reg_init->roof_floor)
917 desc->ops = &palmas_ops_ext_control_ldo;
918 else
919 desc->ops = &palmas_ops_ldo;
920 desc->min_uV = 900000;
921 desc->uV_step = 50000;
922 desc->linear_min_sel = 1;
923 desc->enable_time = 500;
924 desc->vsel_reg = PALMAS_BASE_TO_REG(PALMAS_LDO_BASE,
925 rinfo->vsel_addr);
926 desc->vsel_mask = PALMAS_LDO1_VOLTAGE_VSEL_MASK;
927 desc->enable_reg = PALMAS_BASE_TO_REG(PALMAS_LDO_BASE,
928 rinfo->ctrl_addr);
929 desc->enable_mask = PALMAS_LDO1_CTRL_MODE_ACTIVE;
930
931 /* Check if LDO8 is in tracking mode or not */
932 if (pdata && (id == PALMAS_REG_LDO8) &&
933 pdata->enable_ldo8_tracking) {
934 palmas_enable_ldo8_track(pmic->palmas);
935 desc->min_uV = 450000;
936 desc->uV_step = 25000;
937 }
938
939 /* LOD6 in vibrator mode will have enable time 2000us */
940 if (pdata && pdata->ldo6_vibrator &&
941 (id == PALMAS_REG_LDO6))
942 desc->enable_time = 2000;
943
944 if (id == PALMAS_REG_LDO9) {
945 desc->ops = &palmas_ops_ldo9;
946 desc->bypass_reg = desc->enable_reg;
947 desc->bypass_val_on =
948 PALMAS_LDO9_CTRL_LDO_BYPASS_EN;
949 desc->bypass_mask =
950 PALMAS_LDO9_CTRL_LDO_BYPASS_EN;
951 }
952 } else {
953 if (!ddata->has_regen3 && id == PALMAS_REG_REGEN3)
954 continue;
955
956 desc->n_voltages = 1;
957 if (reg_init && reg_init->roof_floor)
958 desc->ops = &palmas_ops_ext_control_extreg;
959 else
960 desc->ops = &palmas_ops_extreg;
961 desc->enable_reg =
962 PALMAS_BASE_TO_REG(PALMAS_RESOURCE_BASE,
963 rinfo->ctrl_addr);
964 desc->enable_mask = PALMAS_REGEN1_CTRL_MODE_ACTIVE;
965 }
966
967 if (pdata)
968 config.init_data = pdata->reg_data[id];
969 else
970 config.init_data = NULL;
971
972 desc->supply_name = rinfo->sname;
973 config.of_node = ddata->palmas_matches[id].of_node;
974
975 rdev = devm_regulator_register(pmic->dev, desc, &config);
976 if (IS_ERR(rdev)) {
977 dev_err(pmic->dev,
978 "failed to register %s regulator\n",
979 pdev_name);
980 return PTR_ERR(rdev);
981 }
982
983 /* Save regulator for cleanup */
984 pmic->rdev[id] = rdev;
985
986 /* Initialise sleep/init values from platform data */
987 if (pdata) {
988 reg_init = pdata->reg_init[id];
989 if (reg_init) {
990 if (id <= ddata->ldo_end)
991 ret = palmas_ldo_init(pmic->palmas, id,
992 reg_init);
993 else
994 ret = palmas_extreg_init(pmic->palmas,
995 id, reg_init);
996 if (ret)
997 return ret;
998 }
999 }
1000 }
1001
1002 return 0;
1003 }
1004
1005 static int tps65917_ldo_registration(struct palmas_pmic *pmic,
1006 struct palmas_pmic_driver_data *ddata,
1007 struct palmas_pmic_platform_data *pdata,
1008 const char *pdev_name,
1009 struct regulator_config config)
1010 {
1011 int id, ret;
1012 struct regulator_dev *rdev;
1013 struct palmas_reg_init *reg_init;
1014 struct palmas_regs_info *rinfo;
1015 struct regulator_desc *desc;
1016
1017 for (id = ddata->ldo_begin; id < ddata->max_reg; id++) {
1018 if (pdata && pdata->reg_init[id])
1019 reg_init = pdata->reg_init[id];
1020 else
1021 reg_init = NULL;
1022
1023 /* Miss out regulators which are not available due
1024 * to alternate functions.
1025 */
1026 rinfo = &ddata->palmas_regs_info[id];
1027
1028 /* Register the regulators */
1029 desc = &pmic->desc[id];
1030 desc->name = rinfo->name;
1031 desc->id = id;
1032 desc->type = REGULATOR_VOLTAGE;
1033 desc->owner = THIS_MODULE;
1034
1035 if (id < TPS65917_REG_REGEN1) {
1036 desc->n_voltages = PALMAS_LDO_NUM_VOLTAGES;
1037 if (reg_init && reg_init->roof_floor)
1038 desc->ops = &palmas_ops_ext_control_ldo;
1039 else
1040 desc->ops = &tps65917_ops_ldo;
1041 desc->min_uV = 900000;
1042 desc->uV_step = 50000;
1043 desc->linear_min_sel = 1;
1044 desc->enable_time = 500;
1045 desc->vsel_reg = PALMAS_BASE_TO_REG(PALMAS_LDO_BASE,
1046 rinfo->vsel_addr);
1047 desc->vsel_mask = PALMAS_LDO1_VOLTAGE_VSEL_MASK;
1048 desc->enable_reg = PALMAS_BASE_TO_REG(PALMAS_LDO_BASE,
1049 rinfo->ctrl_addr);
1050 desc->enable_mask = PALMAS_LDO1_CTRL_MODE_ACTIVE;
1051 /*
1052 * To be confirmed. Discussion on going with PMIC Team.
1053 * It is of the order of ~60mV/uS.
1054 */
1055 desc->ramp_delay = 2500;
1056 if (id == TPS65917_REG_LDO1 ||
1057 id == TPS65917_REG_LDO2) {
1058 desc->ops = &tps65917_ops_ldo_1_2;
1059 desc->bypass_reg = desc->enable_reg;
1060 desc->bypass_val_on =
1061 TPS65917_LDO1_CTRL_BYPASS_EN;
1062 desc->bypass_mask =
1063 TPS65917_LDO1_CTRL_BYPASS_EN;
1064 }
1065 } else {
1066 desc->n_voltages = 1;
1067 if (reg_init && reg_init->roof_floor)
1068 desc->ops = &palmas_ops_ext_control_extreg;
1069 else
1070 desc->ops = &palmas_ops_extreg;
1071 desc->enable_reg =
1072 PALMAS_BASE_TO_REG(PALMAS_RESOURCE_BASE,
1073 rinfo->ctrl_addr);
1074 desc->enable_mask = PALMAS_REGEN1_CTRL_MODE_ACTIVE;
1075 }
1076
1077 if (pdata)
1078 config.init_data = pdata->reg_data[id];
1079 else
1080 config.init_data = NULL;
1081
1082 desc->supply_name = rinfo->sname;
1083 config.of_node = ddata->palmas_matches[id].of_node;
1084
1085 rdev = devm_regulator_register(pmic->dev, desc, &config);
1086 if (IS_ERR(rdev)) {
1087 dev_err(pmic->dev,
1088 "failed to register %s regulator\n",
1089 pdev_name);
1090 return PTR_ERR(rdev);
1091 }
1092
1093 /* Save regulator for cleanup */
1094 pmic->rdev[id] = rdev;
1095
1096 /* Initialise sleep/init values from platform data */
1097 if (pdata) {
1098 reg_init = pdata->reg_init[id];
1099 if (reg_init) {
1100 if (id < TPS65917_REG_REGEN1)
1101 ret = palmas_ldo_init(pmic->palmas,
1102 id, reg_init);
1103 else
1104 ret = palmas_extreg_init(pmic->palmas,
1105 id, reg_init);
1106 if (ret)
1107 return ret;
1108 }
1109 }
1110 }
1111
1112 return 0;
1113 }
1114
1115 static int palmas_smps_registration(struct palmas_pmic *pmic,
1116 struct palmas_pmic_driver_data *ddata,
1117 struct palmas_pmic_platform_data *pdata,
1118 const char *pdev_name,
1119 struct regulator_config config)
1120 {
1121 int id, ret;
1122 unsigned int addr, reg;
1123 struct regulator_dev *rdev;
1124 struct palmas_reg_init *reg_init;
1125 struct palmas_regs_info *rinfo;
1126 struct regulator_desc *desc;
1127
1128 for (id = ddata->smps_start; id <= ddata->smps_end; id++) {
1129 bool ramp_delay_support = false;
1130
1131 /*
1132 * Miss out regulators which are not available due
1133 * to slaving configurations.
1134 */
1135 switch (id) {
1136 case PALMAS_REG_SMPS12:
1137 case PALMAS_REG_SMPS3:
1138 if (pmic->smps123)
1139 continue;
1140 if (id == PALMAS_REG_SMPS12)
1141 ramp_delay_support = true;
1142 break;
1143 case PALMAS_REG_SMPS123:
1144 if (!pmic->smps123)
1145 continue;
1146 ramp_delay_support = true;
1147 break;
1148 case PALMAS_REG_SMPS45:
1149 case PALMAS_REG_SMPS7:
1150 if (pmic->smps457)
1151 continue;
1152 if (id == PALMAS_REG_SMPS45)
1153 ramp_delay_support = true;
1154 break;
1155 case PALMAS_REG_SMPS457:
1156 if (!pmic->smps457)
1157 continue;
1158 ramp_delay_support = true;
1159 break;
1160 case PALMAS_REG_SMPS10_OUT1:
1161 case PALMAS_REG_SMPS10_OUT2:
1162 if (!PALMAS_PMIC_HAS(pmic->palmas, SMPS10_BOOST))
1163 continue;
1164 }
1165 rinfo = &ddata->palmas_regs_info[id];
1166 desc = &pmic->desc[id];
1167
1168 if ((id == PALMAS_REG_SMPS6) || (id == PALMAS_REG_SMPS8))
1169 ramp_delay_support = true;
1170
1171 if (ramp_delay_support) {
1172 addr = rinfo->tstep_addr;
1173 ret = palmas_smps_read(pmic->palmas, addr, &reg);
1174 if (ret < 0) {
1175 dev_err(pmic->dev,
1176 "reading TSTEP reg failed: %d\n", ret);
1177 return ret;
1178 }
1179 desc->ramp_delay = palmas_smps_ramp_delay[reg & 0x3];
1180 pmic->ramp_delay[id] = desc->ramp_delay;
1181 }
1182
1183 /* Initialise sleep/init values from platform data */
1184 if (pdata && pdata->reg_init[id]) {
1185 reg_init = pdata->reg_init[id];
1186 ret = palmas_smps_init(pmic->palmas, id, reg_init);
1187 if (ret)
1188 return ret;
1189 } else {
1190 reg_init = NULL;
1191 }
1192
1193 /* Register the regulators */
1194 desc->name = rinfo->name;
1195 desc->id = id;
1196
1197 switch (id) {
1198 case PALMAS_REG_SMPS10_OUT1:
1199 case PALMAS_REG_SMPS10_OUT2:
1200 desc->n_voltages = PALMAS_SMPS10_NUM_VOLTAGES;
1201 desc->ops = &palmas_ops_smps10;
1202 desc->vsel_reg = PALMAS_BASE_TO_REG(PALMAS_SMPS_BASE,
1203 PALMAS_SMPS10_CTRL);
1204 desc->vsel_mask = SMPS10_VSEL;
1205 desc->enable_reg = PALMAS_BASE_TO_REG(PALMAS_SMPS_BASE,
1206 PALMAS_SMPS10_CTRL);
1207 if (id == PALMAS_REG_SMPS10_OUT1)
1208 desc->enable_mask = SMPS10_SWITCH_EN;
1209 else
1210 desc->enable_mask = SMPS10_BOOST_EN;
1211 desc->bypass_reg = PALMAS_BASE_TO_REG(PALMAS_SMPS_BASE,
1212 PALMAS_SMPS10_CTRL);
1213 desc->bypass_val_on = SMPS10_BYPASS_EN;
1214 desc->bypass_mask = SMPS10_BYPASS_EN;
1215 desc->min_uV = 3750000;
1216 desc->uV_step = 1250000;
1217 break;
1218 default:
1219 /*
1220 * Read and store the RANGE bit for later use
1221 * This must be done before regulator is probed,
1222 * otherwise we error in probe with unsupportable
1223 * ranges. Read the current smps mode for later use.
1224 */
1225 addr = rinfo->vsel_addr;
1226 desc->n_linear_ranges = 3;
1227
1228 ret = palmas_smps_read(pmic->palmas, addr, &reg);
1229 if (ret)
1230 return ret;
1231 if (reg & PALMAS_SMPS12_VOLTAGE_RANGE)
1232 pmic->range[id] = 1;
1233 if (pmic->range[id])
1234 desc->linear_ranges = smps_high_ranges;
1235 else
1236 desc->linear_ranges = smps_low_ranges;
1237
1238 if (reg_init && reg_init->roof_floor)
1239 desc->ops = &palmas_ops_ext_control_smps;
1240 else
1241 desc->ops = &palmas_ops_smps;
1242 desc->n_voltages = PALMAS_SMPS_NUM_VOLTAGES;
1243 desc->vsel_reg = PALMAS_BASE_TO_REG(PALMAS_SMPS_BASE,
1244 rinfo->vsel_addr);
1245 desc->vsel_mask = PALMAS_SMPS12_VOLTAGE_VSEL_MASK;
1246
1247 /* Read the smps mode for later use. */
1248 addr = rinfo->ctrl_addr;
1249 ret = palmas_smps_read(pmic->palmas, addr, &reg);
1250 if (ret)
1251 return ret;
1252 pmic->current_reg_mode[id] = reg &
1253 PALMAS_SMPS12_CTRL_MODE_ACTIVE_MASK;
1254
1255 desc->enable_reg = PALMAS_BASE_TO_REG(PALMAS_SMPS_BASE,
1256 rinfo->ctrl_addr);
1257 desc->enable_mask = PALMAS_SMPS12_CTRL_MODE_ACTIVE_MASK;
1258 /* set_mode overrides this value */
1259 desc->enable_val = SMPS_CTRL_MODE_ON;
1260 }
1261
1262 desc->type = REGULATOR_VOLTAGE;
1263 desc->owner = THIS_MODULE;
1264
1265 if (pdata)
1266 config.init_data = pdata->reg_data[id];
1267 else
1268 config.init_data = NULL;
1269
1270 desc->supply_name = rinfo->sname;
1271 config.of_node = ddata->palmas_matches[id].of_node;
1272
1273 rdev = devm_regulator_register(pmic->dev, desc, &config);
1274 if (IS_ERR(rdev)) {
1275 dev_err(pmic->dev,
1276 "failed to register %s regulator\n",
1277 pdev_name);
1278 return PTR_ERR(rdev);
1279 }
1280
1281 /* Save regulator for cleanup */
1282 pmic->rdev[id] = rdev;
1283 }
1284
1285 return 0;
1286 }
1287
1288 static int tps65917_smps_registration(struct palmas_pmic *pmic,
1289 struct palmas_pmic_driver_data *ddata,
1290 struct palmas_pmic_platform_data *pdata,
1291 const char *pdev_name,
1292 struct regulator_config config)
1293 {
1294 int id, ret;
1295 unsigned int addr, reg;
1296 struct regulator_dev *rdev;
1297 struct palmas_reg_init *reg_init;
1298 struct palmas_regs_info *rinfo;
1299 struct regulator_desc *desc;
1300
1301 for (id = ddata->smps_start; id <= ddata->smps_end; id++) {
1302 /*
1303 * Miss out regulators which are not available due
1304 * to slaving configurations.
1305 */
1306 desc = &pmic->desc[id];
1307 desc->n_linear_ranges = 3;
1308 if ((id == TPS65917_REG_SMPS2) && pmic->smps12)
1309 continue;
1310
1311 /* Initialise sleep/init values from platform data */
1312 if (pdata && pdata->reg_init[id]) {
1313 reg_init = pdata->reg_init[id];
1314 ret = palmas_smps_init(pmic->palmas, id, reg_init);
1315 if (ret)
1316 return ret;
1317 } else {
1318 reg_init = NULL;
1319 }
1320 rinfo = &ddata->palmas_regs_info[id];
1321
1322 /* Register the regulators */
1323 desc->name = rinfo->name;
1324 desc->id = id;
1325
1326 /*
1327 * Read and store the RANGE bit for later use
1328 * This must be done before regulator is probed,
1329 * otherwise we error in probe with unsupportable
1330 * ranges. Read the current smps mode for later use.
1331 */
1332 addr = rinfo->vsel_addr;
1333
1334 ret = palmas_smps_read(pmic->palmas, addr, &reg);
1335 if (ret)
1336 return ret;
1337 if (reg & TPS65917_SMPS1_VOLTAGE_RANGE)
1338 pmic->range[id] = 1;
1339
1340 if (pmic->range[id])
1341 desc->linear_ranges = smps_high_ranges;
1342 else
1343 desc->linear_ranges = smps_low_ranges;
1344
1345 if (reg_init && reg_init->roof_floor)
1346 desc->ops = &tps65917_ops_ext_control_smps;
1347 else
1348 desc->ops = &tps65917_ops_smps;
1349 desc->n_voltages = PALMAS_SMPS_NUM_VOLTAGES;
1350 desc->vsel_reg = PALMAS_BASE_TO_REG(PALMAS_SMPS_BASE,
1351 rinfo->vsel_addr);
1352 desc->vsel_mask = PALMAS_SMPS12_VOLTAGE_VSEL_MASK;
1353 desc->ramp_delay = 2500;
1354
1355 /* Read the smps mode for later use. */
1356 addr = rinfo->ctrl_addr;
1357 ret = palmas_smps_read(pmic->palmas, addr, &reg);
1358 if (ret)
1359 return ret;
1360 pmic->current_reg_mode[id] = reg &
1361 PALMAS_SMPS12_CTRL_MODE_ACTIVE_MASK;
1362 desc->enable_reg = PALMAS_BASE_TO_REG(PALMAS_SMPS_BASE,
1363 rinfo->ctrl_addr);
1364 desc->enable_mask = PALMAS_SMPS12_CTRL_MODE_ACTIVE_MASK;
1365 /* set_mode overrides this value */
1366 desc->enable_val = SMPS_CTRL_MODE_ON;
1367
1368 desc->type = REGULATOR_VOLTAGE;
1369 desc->owner = THIS_MODULE;
1370
1371 if (pdata)
1372 config.init_data = pdata->reg_data[id];
1373 else
1374 config.init_data = NULL;
1375
1376 desc->supply_name = rinfo->sname;
1377 config.of_node = ddata->palmas_matches[id].of_node;
1378
1379 rdev = devm_regulator_register(pmic->dev, desc, &config);
1380 if (IS_ERR(rdev)) {
1381 dev_err(pmic->dev,
1382 "failed to register %s regulator\n",
1383 pdev_name);
1384 return PTR_ERR(rdev);
1385 }
1386
1387 /* Save regulator for cleanup */
1388 pmic->rdev[id] = rdev;
1389 }
1390
1391 return 0;
1392 }
1393
1394 static struct of_regulator_match palmas_matches[] = {
1395 { .name = "smps12", },
1396 { .name = "smps123", },
1397 { .name = "smps3", },
1398 { .name = "smps45", },
1399 { .name = "smps457", },
1400 { .name = "smps6", },
1401 { .name = "smps7", },
1402 { .name = "smps8", },
1403 { .name = "smps9", },
1404 { .name = "smps10_out2", },
1405 { .name = "smps10_out1", },
1406 { .name = "ldo1", },
1407 { .name = "ldo2", },
1408 { .name = "ldo3", },
1409 { .name = "ldo4", },
1410 { .name = "ldo5", },
1411 { .name = "ldo6", },
1412 { .name = "ldo7", },
1413 { .name = "ldo8", },
1414 { .name = "ldo9", },
1415 { .name = "ldoln", },
1416 { .name = "ldousb", },
1417 { .name = "regen1", },
1418 { .name = "regen2", },
1419 { .name = "regen3", },
1420 { .name = "sysen1", },
1421 { .name = "sysen2", },
1422 };
1423
1424 static struct of_regulator_match tps65917_matches[] = {
1425 { .name = "smps1", },
1426 { .name = "smps2", },
1427 { .name = "smps3", },
1428 { .name = "smps4", },
1429 { .name = "smps5", },
1430 { .name = "ldo1", },
1431 { .name = "ldo2", },
1432 { .name = "ldo3", },
1433 { .name = "ldo4", },
1434 { .name = "ldo5", },
1435 { .name = "regen1", },
1436 { .name = "regen2", },
1437 { .name = "regen3", },
1438 { .name = "sysen1", },
1439 { .name = "sysen2", },
1440 };
1441
1442 static struct palmas_pmic_driver_data palmas_ddata = {
1443 .smps_start = PALMAS_REG_SMPS12,
1444 .smps_end = PALMAS_REG_SMPS10_OUT1,
1445 .ldo_begin = PALMAS_REG_LDO1,
1446 .ldo_end = PALMAS_REG_LDOUSB,
1447 .max_reg = PALMAS_NUM_REGS,
1448 .has_regen3 = true,
1449 .palmas_regs_info = palmas_generic_regs_info,
1450 .palmas_matches = palmas_matches,
1451 .sleep_req_info = palma_sleep_req_info,
1452 .smps_register = palmas_smps_registration,
1453 .ldo_register = palmas_ldo_registration,
1454 };
1455
1456 static struct palmas_pmic_driver_data tps65917_ddata = {
1457 .smps_start = TPS65917_REG_SMPS1,
1458 .smps_end = TPS65917_REG_SMPS5,
1459 .ldo_begin = TPS65917_REG_LDO1,
1460 .ldo_end = TPS65917_REG_LDO5,
1461 .max_reg = TPS65917_NUM_REGS,
1462 .has_regen3 = true,
1463 .palmas_regs_info = tps65917_regs_info,
1464 .palmas_matches = tps65917_matches,
1465 .sleep_req_info = tps65917_sleep_req_info,
1466 .smps_register = tps65917_smps_registration,
1467 .ldo_register = tps65917_ldo_registration,
1468 };
1469
1470 static int palmas_dt_to_pdata(struct device *dev,
1471 struct device_node *node,
1472 struct palmas_pmic_platform_data *pdata,
1473 struct palmas_pmic_driver_data *ddata)
1474 {
1475 struct device_node *regulators;
1476 u32 prop;
1477 int idx, ret;
1478
1479 regulators = of_get_child_by_name(node, "regulators");
1480 if (!regulators) {
1481 dev_info(dev, "regulator node not found\n");
1482 return 0;
1483 }
1484
1485 ret = of_regulator_match(dev, regulators, ddata->palmas_matches,
1486 ddata->max_reg);
1487 of_node_put(regulators);
1488 if (ret < 0) {
1489 dev_err(dev, "Error parsing regulator init data: %d\n", ret);
1490 return 0;
1491 }
1492
1493 for (idx = 0; idx < ddata->max_reg; idx++) {
1494 static struct of_regulator_match *match;
1495 struct palmas_reg_init *rinit;
1496 struct device_node *np;
1497
1498 match = &ddata->palmas_matches[idx];
1499 np = match->of_node;
1500
1501 if (!match->init_data || !np)
1502 continue;
1503
1504 rinit = devm_kzalloc(dev, sizeof(*rinit), GFP_KERNEL);
1505 if (!rinit)
1506 return -ENOMEM;
1507
1508 pdata->reg_data[idx] = match->init_data;
1509 pdata->reg_init[idx] = rinit;
1510
1511 rinit->warm_reset = of_property_read_bool(np, "ti,warm-reset");
1512 ret = of_property_read_u32(np, "ti,roof-floor", &prop);
1513 /* EINVAL: Property not found */
1514 if (ret != -EINVAL) {
1515 int econtrol;
1516
1517 /* use default value, when no value is specified */
1518 econtrol = PALMAS_EXT_CONTROL_NSLEEP;
1519 if (!ret) {
1520 switch (prop) {
1521 case 1:
1522 econtrol = PALMAS_EXT_CONTROL_ENABLE1;
1523 break;
1524 case 2:
1525 econtrol = PALMAS_EXT_CONTROL_ENABLE2;
1526 break;
1527 case 3:
1528 econtrol = PALMAS_EXT_CONTROL_NSLEEP;
1529 break;
1530 default:
1531 WARN_ON(1);
1532 dev_warn(dev,
1533 "%s: Invalid roof-floor option: %u\n",
1534 match->name, prop);
1535 break;
1536 }
1537 }
1538 rinit->roof_floor = econtrol;
1539 }
1540
1541 ret = of_property_read_u32(np, "ti,mode-sleep", &prop);
1542 if (!ret)
1543 rinit->mode_sleep = prop;
1544
1545 ret = of_property_read_bool(np, "ti,smps-range");
1546 if (ret)
1547 rinit->vsel = PALMAS_SMPS12_VOLTAGE_RANGE;
1548
1549 if (idx == PALMAS_REG_LDO8)
1550 pdata->enable_ldo8_tracking = of_property_read_bool(
1551 np, "ti,enable-ldo8-tracking");
1552 }
1553
1554 pdata->ldo6_vibrator = of_property_read_bool(node, "ti,ldo6-vibrator");
1555
1556 return 0;
1557 }
1558
1559 static const struct of_device_id of_palmas_match_tbl[] = {
1560 {
1561 .compatible = "ti,palmas-pmic",
1562 .data = &palmas_ddata,
1563 },
1564 {
1565 .compatible = "ti,twl6035-pmic",
1566 .data = &palmas_ddata,
1567 },
1568 {
1569 .compatible = "ti,twl6036-pmic",
1570 .data = &palmas_ddata,
1571 },
1572 {
1573 .compatible = "ti,twl6037-pmic",
1574 .data = &palmas_ddata,
1575 },
1576 {
1577 .compatible = "ti,tps65913-pmic",
1578 .data = &palmas_ddata,
1579 },
1580 {
1581 .compatible = "ti,tps65914-pmic",
1582 .data = &palmas_ddata,
1583 },
1584 {
1585 .compatible = "ti,tps80036-pmic",
1586 .data = &palmas_ddata,
1587 },
1588 {
1589 .compatible = "ti,tps659038-pmic",
1590 .data = &palmas_ddata,
1591 },
1592 {
1593 .compatible = "ti,tps65917-pmic",
1594 .data = &tps65917_ddata,
1595 },
1596 { /* end */ }
1597 };
1598
1599 static int palmas_regulators_probe(struct platform_device *pdev)
1600 {
1601 struct palmas *palmas = dev_get_drvdata(pdev->dev.parent);
1602 struct palmas_pmic_platform_data *pdata = dev_get_platdata(&pdev->dev);
1603 struct device_node *node = pdev->dev.of_node;
1604 struct palmas_pmic_driver_data *driver_data;
1605 struct regulator_config config = { };
1606 struct palmas_pmic *pmic;
1607 const char *pdev_name;
1608 const struct of_device_id *match;
1609 int ret = 0;
1610 unsigned int reg;
1611
1612 match = of_match_device(of_match_ptr(of_palmas_match_tbl), &pdev->dev);
1613
1614 if (!match)
1615 return -ENODATA;
1616
1617 driver_data = (struct palmas_pmic_driver_data *)match->data;
1618 pdata = devm_kzalloc(&pdev->dev, sizeof(*pdata), GFP_KERNEL);
1619 if (!pdata)
1620 return -ENOMEM;
1621
1622 pmic = devm_kzalloc(&pdev->dev, sizeof(*pmic), GFP_KERNEL);
1623 if (!pmic)
1624 return -ENOMEM;
1625
1626 if (of_device_is_compatible(node, "ti,tps659038-pmic")) {
1627 palmas_generic_regs_info[PALMAS_REG_REGEN2].ctrl_addr =
1628 TPS659038_REGEN2_CTRL;
1629 palmas_ddata.has_regen3 = false;
1630 }
1631
1632 pmic->dev = &pdev->dev;
1633 pmic->palmas = palmas;
1634 palmas->pmic = pmic;
1635 platform_set_drvdata(pdev, pmic);
1636 pmic->palmas->pmic_ddata = driver_data;
1637
1638 ret = palmas_dt_to_pdata(&pdev->dev, node, pdata, driver_data);
1639 if (ret)
1640 return ret;
1641
1642 ret = palmas_smps_read(palmas, PALMAS_SMPS_CTRL, &reg);
1643 if (ret)
1644 return ret;
1645
1646 if (reg & PALMAS_SMPS_CTRL_SMPS12_SMPS123_EN)
1647 pmic->smps123 = 1;
1648
1649 if (reg & PALMAS_SMPS_CTRL_SMPS45_SMPS457_EN)
1650 pmic->smps457 = 1;
1651
1652 config.regmap = palmas->regmap[REGULATOR_SLAVE];
1653 config.dev = &pdev->dev;
1654 config.driver_data = pmic;
1655 pdev_name = pdev->name;
1656
1657 ret = driver_data->smps_register(pmic, driver_data, pdata, pdev_name,
1658 config);
1659 if (ret)
1660 return ret;
1661
1662 ret = driver_data->ldo_register(pmic, driver_data, pdata, pdev_name,
1663 config);
1664
1665 return ret;
1666 }
1667
1668 static struct platform_driver palmas_driver = {
1669 .driver = {
1670 .name = "palmas-pmic",
1671 .of_match_table = of_palmas_match_tbl,
1672 },
1673 .probe = palmas_regulators_probe,
1674 };
1675
1676 static int __init palmas_init(void)
1677 {
1678 return platform_driver_register(&palmas_driver);
1679 }
1680 subsys_initcall(palmas_init);
1681
1682 static void __exit palmas_exit(void)
1683 {
1684 platform_driver_unregister(&palmas_driver);
1685 }
1686 module_exit(palmas_exit);
1687
1688 MODULE_AUTHOR("Graeme Gregory <gg@slimlogic.co.uk>");
1689 MODULE_DESCRIPTION("Palmas voltage regulator driver");
1690 MODULE_LICENSE("GPL");
1691 MODULE_ALIAS("platform:palmas-pmic");
1692 MODULE_DEVICE_TABLE(of, of_palmas_match_tbl);
Linux with added FPC-III support