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 = "SMPS12",
268 .sname = "smps1-in",
269 .vsel_addr = TPS65917_SMPS1_VOLTAGE,
270 .ctrl_addr = TPS65917_SMPS1_CTRL,
271 .sleep_id = TPS65917_EXTERNAL_REQSTR_ID_SMPS12,
272 },
273 {
274 .name = "LDO1",
275 .sname = "ldo1-in",
276 .vsel_addr = TPS65917_LDO1_VOLTAGE,
277 .ctrl_addr = TPS65917_LDO1_CTRL,
278 .sleep_id = TPS65917_EXTERNAL_REQSTR_ID_LDO1,
279 },
280 {
281 .name = "LDO2",
282 .sname = "ldo2-in",
283 .vsel_addr = TPS65917_LDO2_VOLTAGE,
284 .ctrl_addr = TPS65917_LDO2_CTRL,
285 .sleep_id = TPS65917_EXTERNAL_REQSTR_ID_LDO2,
286 },
287 {
288 .name = "LDO3",
289 .sname = "ldo3-in",
290 .vsel_addr = TPS65917_LDO3_VOLTAGE,
291 .ctrl_addr = TPS65917_LDO3_CTRL,
292 .sleep_id = TPS65917_EXTERNAL_REQSTR_ID_LDO3,
293 },
294 {
295 .name = "LDO4",
296 .sname = "ldo4-in",
297 .vsel_addr = TPS65917_LDO4_VOLTAGE,
298 .ctrl_addr = TPS65917_LDO4_CTRL,
299 .sleep_id = TPS65917_EXTERNAL_REQSTR_ID_LDO4,
300 },
301 {
302 .name = "LDO5",
303 .sname = "ldo5-in",
304 .vsel_addr = TPS65917_LDO5_VOLTAGE,
305 .ctrl_addr = TPS65917_LDO5_CTRL,
306 .sleep_id = TPS65917_EXTERNAL_REQSTR_ID_LDO5,
307 },
308 {
309 .name = "REGEN1",
310 .ctrl_addr = TPS65917_REGEN1_CTRL,
311 .sleep_id = TPS65917_EXTERNAL_REQSTR_ID_REGEN1,
312 },
313 {
314 .name = "REGEN2",
315 .ctrl_addr = TPS65917_REGEN2_CTRL,
316 .sleep_id = TPS65917_EXTERNAL_REQSTR_ID_REGEN2,
317 },
318 {
319 .name = "REGEN3",
320 .ctrl_addr = TPS65917_REGEN3_CTRL,
321 .sleep_id = TPS65917_EXTERNAL_REQSTR_ID_REGEN3,
322 },
323 };
324
325 #define EXTERNAL_REQUESTOR(_id, _offset, _pos) \
326 [PALMAS_EXTERNAL_REQSTR_ID_##_id] = { \
327 .id = PALMAS_EXTERNAL_REQSTR_ID_##_id, \
328 .reg_offset = _offset, \
329 .bit_pos = _pos, \
330 }
331
332 static struct palmas_sleep_requestor_info palma_sleep_req_info[] = {
333 EXTERNAL_REQUESTOR(REGEN1, 0, 0),
334 EXTERNAL_REQUESTOR(REGEN2, 0, 1),
335 EXTERNAL_REQUESTOR(SYSEN1, 0, 2),
336 EXTERNAL_REQUESTOR(SYSEN2, 0, 3),
337 EXTERNAL_REQUESTOR(CLK32KG, 0, 4),
338 EXTERNAL_REQUESTOR(CLK32KGAUDIO, 0, 5),
339 EXTERNAL_REQUESTOR(REGEN3, 0, 6),
340 EXTERNAL_REQUESTOR(SMPS12, 1, 0),
341 EXTERNAL_REQUESTOR(SMPS3, 1, 1),
342 EXTERNAL_REQUESTOR(SMPS45, 1, 2),
343 EXTERNAL_REQUESTOR(SMPS6, 1, 3),
344 EXTERNAL_REQUESTOR(SMPS7, 1, 4),
345 EXTERNAL_REQUESTOR(SMPS8, 1, 5),
346 EXTERNAL_REQUESTOR(SMPS9, 1, 6),
347 EXTERNAL_REQUESTOR(SMPS10, 1, 7),
348 EXTERNAL_REQUESTOR(LDO1, 2, 0),
349 EXTERNAL_REQUESTOR(LDO2, 2, 1),
350 EXTERNAL_REQUESTOR(LDO3, 2, 2),
351 EXTERNAL_REQUESTOR(LDO4, 2, 3),
352 EXTERNAL_REQUESTOR(LDO5, 2, 4),
353 EXTERNAL_REQUESTOR(LDO6, 2, 5),
354 EXTERNAL_REQUESTOR(LDO7, 2, 6),
355 EXTERNAL_REQUESTOR(LDO8, 2, 7),
356 EXTERNAL_REQUESTOR(LDO9, 3, 0),
357 EXTERNAL_REQUESTOR(LDOLN, 3, 1),
358 EXTERNAL_REQUESTOR(LDOUSB, 3, 2),
359 };
360
361 #define EXTERNAL_REQUESTOR_TPS65917(_id, _offset, _pos) \
362 [TPS65917_EXTERNAL_REQSTR_ID_##_id] = { \
363 .id = TPS65917_EXTERNAL_REQSTR_ID_##_id, \
364 .reg_offset = _offset, \
365 .bit_pos = _pos, \
366 }
367
368 static struct palmas_sleep_requestor_info tps65917_sleep_req_info[] = {
369 EXTERNAL_REQUESTOR_TPS65917(REGEN1, 0, 0),
370 EXTERNAL_REQUESTOR_TPS65917(REGEN2, 0, 1),
371 EXTERNAL_REQUESTOR_TPS65917(REGEN3, 0, 6),
372 EXTERNAL_REQUESTOR_TPS65917(SMPS1, 1, 0),
373 EXTERNAL_REQUESTOR_TPS65917(SMPS2, 1, 1),
374 EXTERNAL_REQUESTOR_TPS65917(SMPS3, 1, 2),
375 EXTERNAL_REQUESTOR_TPS65917(SMPS4, 1, 3),
376 EXTERNAL_REQUESTOR_TPS65917(SMPS5, 1, 4),
377 EXTERNAL_REQUESTOR_TPS65917(SMPS12, 1, 5),
378 EXTERNAL_REQUESTOR_TPS65917(LDO1, 2, 0),
379 EXTERNAL_REQUESTOR_TPS65917(LDO2, 2, 1),
380 EXTERNAL_REQUESTOR_TPS65917(LDO3, 2, 2),
381 EXTERNAL_REQUESTOR_TPS65917(LDO4, 2, 3),
382 EXTERNAL_REQUESTOR_TPS65917(LDO5, 2, 4),
383 };
384
385 static unsigned int palmas_smps_ramp_delay[4] = {0, 10000, 5000, 2500};
386
387 #define SMPS_CTRL_MODE_OFF 0x00
388 #define SMPS_CTRL_MODE_ON 0x01
389 #define SMPS_CTRL_MODE_ECO 0x02
390 #define SMPS_CTRL_MODE_PWM 0x03
391
392 #define PALMAS_SMPS_NUM_VOLTAGES 122
393 #define PALMAS_SMPS10_NUM_VOLTAGES 2
394 #define PALMAS_LDO_NUM_VOLTAGES 50
395
396 #define SMPS10_VSEL (1<<3)
397 #define SMPS10_BOOST_EN (1<<2)
398 #define SMPS10_BYPASS_EN (1<<1)
399 #define SMPS10_SWITCH_EN (1<<0)
400
401 #define REGULATOR_SLAVE 0
402
palmas_smps_read(struct palmas * palmas,unsigned int reg,unsigned int * dest)403 static int palmas_smps_read(struct palmas *palmas, unsigned int reg,
404 unsigned int *dest)
405 {
406 unsigned int addr;
407
408 addr = PALMAS_BASE_TO_REG(PALMAS_SMPS_BASE, reg);
409
410 return regmap_read(palmas->regmap[REGULATOR_SLAVE], addr, dest);
411 }
412
palmas_smps_write(struct palmas * palmas,unsigned int reg,unsigned int value)413 static int palmas_smps_write(struct palmas *palmas, unsigned int reg,
414 unsigned int value)
415 {
416 unsigned int addr;
417
418 addr = PALMAS_BASE_TO_REG(PALMAS_SMPS_BASE, reg);
419
420 return regmap_write(palmas->regmap[REGULATOR_SLAVE], addr, value);
421 }
422
palmas_ldo_read(struct palmas * palmas,unsigned int reg,unsigned int * dest)423 static int palmas_ldo_read(struct palmas *palmas, unsigned int reg,
424 unsigned int *dest)
425 {
426 unsigned int addr;
427
428 addr = PALMAS_BASE_TO_REG(PALMAS_LDO_BASE, reg);
429
430 return regmap_read(palmas->regmap[REGULATOR_SLAVE], addr, dest);
431 }
432
palmas_ldo_write(struct palmas * palmas,unsigned int reg,unsigned int value)433 static int palmas_ldo_write(struct palmas *palmas, unsigned int reg,
434 unsigned int value)
435 {
436 unsigned int addr;
437
438 addr = PALMAS_BASE_TO_REG(PALMAS_LDO_BASE, reg);
439
440 return regmap_write(palmas->regmap[REGULATOR_SLAVE], addr, value);
441 }
442
palmas_set_mode_smps(struct regulator_dev * dev,unsigned int mode)443 static int palmas_set_mode_smps(struct regulator_dev *dev, unsigned int mode)
444 {
445 int id = rdev_get_id(dev);
446 int ret;
447 struct palmas_pmic *pmic = rdev_get_drvdata(dev);
448 struct palmas_pmic_driver_data *ddata = pmic->palmas->pmic_ddata;
449 struct palmas_regs_info *rinfo = &ddata->palmas_regs_info[id];
450 unsigned int reg;
451 bool rail_enable = true;
452
453 ret = palmas_smps_read(pmic->palmas, rinfo->ctrl_addr, ®);
454 if (ret)
455 return ret;
456
457 reg &= ~PALMAS_SMPS12_CTRL_MODE_ACTIVE_MASK;
458
459 if (reg == SMPS_CTRL_MODE_OFF)
460 rail_enable = false;
461
462 switch (mode) {
463 case REGULATOR_MODE_NORMAL:
464 reg |= SMPS_CTRL_MODE_ON;
465 break;
466 case REGULATOR_MODE_IDLE:
467 reg |= SMPS_CTRL_MODE_ECO;
468 break;
469 case REGULATOR_MODE_FAST:
470 reg |= SMPS_CTRL_MODE_PWM;
471 break;
472 default:
473 return -EINVAL;
474 }
475
476 pmic->current_reg_mode[id] = reg & PALMAS_SMPS12_CTRL_MODE_ACTIVE_MASK;
477 if (rail_enable)
478 palmas_smps_write(pmic->palmas, rinfo->ctrl_addr, reg);
479
480 /* Switch the enable value to ensure this is used for enable */
481 pmic->desc[id].enable_val = pmic->current_reg_mode[id];
482
483 return 0;
484 }
485
palmas_get_mode_smps(struct regulator_dev * dev)486 static unsigned int palmas_get_mode_smps(struct regulator_dev *dev)
487 {
488 struct palmas_pmic *pmic = rdev_get_drvdata(dev);
489 int id = rdev_get_id(dev);
490 unsigned int reg;
491
492 reg = pmic->current_reg_mode[id] & PALMAS_SMPS12_CTRL_MODE_ACTIVE_MASK;
493
494 switch (reg) {
495 case SMPS_CTRL_MODE_ON:
496 return REGULATOR_MODE_NORMAL;
497 case SMPS_CTRL_MODE_ECO:
498 return REGULATOR_MODE_IDLE;
499 case SMPS_CTRL_MODE_PWM:
500 return REGULATOR_MODE_FAST;
501 }
502
503 return 0;
504 }
505
palmas_smps_set_ramp_delay(struct regulator_dev * rdev,int ramp_delay)506 static int palmas_smps_set_ramp_delay(struct regulator_dev *rdev,
507 int ramp_delay)
508 {
509 int id = rdev_get_id(rdev);
510 struct palmas_pmic *pmic = rdev_get_drvdata(rdev);
511 struct palmas_pmic_driver_data *ddata = pmic->palmas->pmic_ddata;
512 struct palmas_regs_info *rinfo = &ddata->palmas_regs_info[id];
513 unsigned int reg = 0;
514 int ret;
515
516 /* SMPS3 and SMPS7 do not have tstep_addr setting */
517 switch (id) {
518 case PALMAS_REG_SMPS3:
519 case PALMAS_REG_SMPS7:
520 return 0;
521 }
522
523 if (ramp_delay <= 0)
524 reg = 0;
525 else if (ramp_delay <= 2500)
526 reg = 3;
527 else if (ramp_delay <= 5000)
528 reg = 2;
529 else
530 reg = 1;
531
532 ret = palmas_smps_write(pmic->palmas, rinfo->tstep_addr, reg);
533 if (ret < 0) {
534 dev_err(pmic->palmas->dev, "TSTEP write failed: %d\n", ret);
535 return ret;
536 }
537
538 pmic->ramp_delay[id] = palmas_smps_ramp_delay[reg];
539 return ret;
540 }
541
542 static const struct regulator_ops palmas_ops_smps = {
543 .is_enabled = regulator_is_enabled_regmap,
544 .enable = regulator_enable_regmap,
545 .disable = regulator_disable_regmap,
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 const struct regulator_ops palmas_ops_ext_control_smps = {
557 .set_mode = palmas_set_mode_smps,
558 .get_mode = palmas_get_mode_smps,
559 .get_voltage_sel = regulator_get_voltage_sel_regmap,
560 .set_voltage_sel = regulator_set_voltage_sel_regmap,
561 .list_voltage = regulator_list_voltage_linear_range,
562 .map_voltage = regulator_map_voltage_linear_range,
563 .set_voltage_time_sel = regulator_set_voltage_time_sel,
564 .set_ramp_delay = palmas_smps_set_ramp_delay,
565 };
566
567 static const struct regulator_ops palmas_ops_smps10 = {
568 .is_enabled = regulator_is_enabled_regmap,
569 .enable = regulator_enable_regmap,
570 .disable = regulator_disable_regmap,
571 .get_voltage_sel = regulator_get_voltage_sel_regmap,
572 .set_voltage_sel = regulator_set_voltage_sel_regmap,
573 .list_voltage = regulator_list_voltage_linear,
574 .map_voltage = regulator_map_voltage_linear,
575 .set_bypass = regulator_set_bypass_regmap,
576 .get_bypass = regulator_get_bypass_regmap,
577 };
578
579 static const struct regulator_ops tps65917_ops_smps = {
580 .is_enabled = regulator_is_enabled_regmap,
581 .enable = regulator_enable_regmap,
582 .disable = regulator_disable_regmap,
583 .set_mode = palmas_set_mode_smps,
584 .get_mode = palmas_get_mode_smps,
585 .get_voltage_sel = regulator_get_voltage_sel_regmap,
586 .set_voltage_sel = regulator_set_voltage_sel_regmap,
587 .list_voltage = regulator_list_voltage_linear_range,
588 .map_voltage = regulator_map_voltage_linear_range,
589 .set_voltage_time_sel = regulator_set_voltage_time_sel,
590 };
591
592 static const struct regulator_ops tps65917_ops_ext_control_smps = {
593 .set_mode = palmas_set_mode_smps,
594 .get_mode = palmas_get_mode_smps,
595 .get_voltage_sel = regulator_get_voltage_sel_regmap,
596 .set_voltage_sel = regulator_set_voltage_sel_regmap,
597 .list_voltage = regulator_list_voltage_linear_range,
598 .map_voltage = regulator_map_voltage_linear_range,
599 };
600
palmas_is_enabled_ldo(struct regulator_dev * dev)601 static int palmas_is_enabled_ldo(struct regulator_dev *dev)
602 {
603 int id = rdev_get_id(dev);
604 struct palmas_pmic *pmic = rdev_get_drvdata(dev);
605 struct palmas_pmic_driver_data *ddata = pmic->palmas->pmic_ddata;
606 struct palmas_regs_info *rinfo = &ddata->palmas_regs_info[id];
607 unsigned int reg;
608
609 palmas_ldo_read(pmic->palmas, rinfo->ctrl_addr, ®);
610
611 reg &= PALMAS_LDO1_CTRL_STATUS;
612
613 return !!(reg);
614 }
615
616 static const struct regulator_ops palmas_ops_ldo = {
617 .is_enabled = palmas_is_enabled_ldo,
618 .enable = regulator_enable_regmap,
619 .disable = regulator_disable_regmap,
620 .get_voltage_sel = regulator_get_voltage_sel_regmap,
621 .set_voltage_sel = regulator_set_voltage_sel_regmap,
622 .list_voltage = regulator_list_voltage_linear,
623 .map_voltage = regulator_map_voltage_linear,
624 };
625
626 static const struct regulator_ops palmas_ops_ldo9 = {
627 .is_enabled = palmas_is_enabled_ldo,
628 .enable = regulator_enable_regmap,
629 .disable = regulator_disable_regmap,
630 .get_voltage_sel = regulator_get_voltage_sel_regmap,
631 .set_voltage_sel = regulator_set_voltage_sel_regmap,
632 .list_voltage = regulator_list_voltage_linear,
633 .map_voltage = regulator_map_voltage_linear,
634 .set_bypass = regulator_set_bypass_regmap,
635 .get_bypass = regulator_get_bypass_regmap,
636 };
637
638 static const struct regulator_ops palmas_ops_ext_control_ldo = {
639 .get_voltage_sel = regulator_get_voltage_sel_regmap,
640 .set_voltage_sel = regulator_set_voltage_sel_regmap,
641 .list_voltage = regulator_list_voltage_linear,
642 .map_voltage = regulator_map_voltage_linear,
643 };
644
645 static const struct regulator_ops palmas_ops_extreg = {
646 .is_enabled = regulator_is_enabled_regmap,
647 .enable = regulator_enable_regmap,
648 .disable = regulator_disable_regmap,
649 };
650
651 static const struct regulator_ops palmas_ops_ext_control_extreg = {
652 };
653
654 static const struct regulator_ops tps65917_ops_ldo = {
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 };
664
665 static const struct regulator_ops tps65917_ops_ldo_1_2 = {
666 .is_enabled = palmas_is_enabled_ldo,
667 .enable = regulator_enable_regmap,
668 .disable = regulator_disable_regmap,
669 .get_voltage_sel = regulator_get_voltage_sel_regmap,
670 .set_voltage_sel = regulator_set_voltage_sel_regmap,
671 .list_voltage = regulator_list_voltage_linear,
672 .map_voltage = regulator_map_voltage_linear,
673 .set_voltage_time_sel = regulator_set_voltage_time_sel,
674 .set_bypass = regulator_set_bypass_regmap,
675 .get_bypass = regulator_get_bypass_regmap,
676 };
677
palmas_regulator_config_external(struct palmas * palmas,int id,struct palmas_reg_init * reg_init)678 static int palmas_regulator_config_external(struct palmas *palmas, int id,
679 struct palmas_reg_init *reg_init)
680 {
681 struct palmas_pmic_driver_data *ddata = palmas->pmic_ddata;
682 struct palmas_regs_info *rinfo = &ddata->palmas_regs_info[id];
683 int ret;
684
685 ret = palmas_ext_control_req_config(palmas, rinfo->sleep_id,
686 reg_init->roof_floor, true);
687 if (ret < 0)
688 dev_err(palmas->dev,
689 "Ext control config for regulator %d failed %d\n",
690 id, ret);
691 return ret;
692 }
693
694 /*
695 * setup the hardware based sleep configuration of the SMPS/LDO regulators
696 * from the platform data. This is different to the software based control
697 * supported by the regulator framework as it is controlled by toggling
698 * pins on the PMIC such as PREQ, SYSEN, ...
699 */
palmas_smps_init(struct palmas * palmas,int id,struct palmas_reg_init * reg_init)700 static int palmas_smps_init(struct palmas *palmas, int id,
701 struct palmas_reg_init *reg_init)
702 {
703 unsigned int reg;
704 int ret;
705 struct palmas_pmic_driver_data *ddata = palmas->pmic_ddata;
706 struct palmas_regs_info *rinfo = &ddata->palmas_regs_info[id];
707 unsigned int addr = rinfo->ctrl_addr;
708
709 ret = palmas_smps_read(palmas, addr, ®);
710 if (ret)
711 return ret;
712
713 switch (id) {
714 case PALMAS_REG_SMPS10_OUT1:
715 case PALMAS_REG_SMPS10_OUT2:
716 reg &= ~PALMAS_SMPS10_CTRL_MODE_SLEEP_MASK;
717 if (reg_init->mode_sleep)
718 reg |= reg_init->mode_sleep <<
719 PALMAS_SMPS10_CTRL_MODE_SLEEP_SHIFT;
720 break;
721 default:
722 if (reg_init->warm_reset)
723 reg |= PALMAS_SMPS12_CTRL_WR_S;
724 else
725 reg &= ~PALMAS_SMPS12_CTRL_WR_S;
726
727 if (reg_init->roof_floor)
728 reg |= PALMAS_SMPS12_CTRL_ROOF_FLOOR_EN;
729 else
730 reg &= ~PALMAS_SMPS12_CTRL_ROOF_FLOOR_EN;
731
732 reg &= ~PALMAS_SMPS12_CTRL_MODE_SLEEP_MASK;
733 if (reg_init->mode_sleep)
734 reg |= reg_init->mode_sleep <<
735 PALMAS_SMPS12_CTRL_MODE_SLEEP_SHIFT;
736 }
737
738 ret = palmas_smps_write(palmas, addr, reg);
739 if (ret)
740 return ret;
741
742 if (rinfo->vsel_addr && reg_init->vsel) {
743
744 reg = reg_init->vsel;
745
746 ret = palmas_smps_write(palmas, rinfo->vsel_addr, reg);
747 if (ret)
748 return ret;
749 }
750
751 if (reg_init->roof_floor && (id != PALMAS_REG_SMPS10_OUT1) &&
752 (id != PALMAS_REG_SMPS10_OUT2)) {
753 /* Enable externally controlled regulator */
754 ret = palmas_smps_read(palmas, addr, ®);
755 if (ret < 0)
756 return ret;
757
758 if (!(reg & PALMAS_SMPS12_CTRL_MODE_ACTIVE_MASK)) {
759 reg |= SMPS_CTRL_MODE_ON;
760 ret = palmas_smps_write(palmas, addr, reg);
761 if (ret < 0)
762 return ret;
763 }
764 return palmas_regulator_config_external(palmas, id, reg_init);
765 }
766 return 0;
767 }
768
palmas_ldo_init(struct palmas * palmas,int id,struct palmas_reg_init * reg_init)769 static int palmas_ldo_init(struct palmas *palmas, int id,
770 struct palmas_reg_init *reg_init)
771 {
772 unsigned int reg;
773 unsigned int addr;
774 int ret;
775 struct palmas_pmic_driver_data *ddata = palmas->pmic_ddata;
776 struct palmas_regs_info *rinfo = &ddata->palmas_regs_info[id];
777
778 addr = rinfo->ctrl_addr;
779
780 ret = palmas_ldo_read(palmas, addr, ®);
781 if (ret)
782 return ret;
783
784 if (reg_init->warm_reset)
785 reg |= PALMAS_LDO1_CTRL_WR_S;
786 else
787 reg &= ~PALMAS_LDO1_CTRL_WR_S;
788
789 if (reg_init->mode_sleep)
790 reg |= PALMAS_LDO1_CTRL_MODE_SLEEP;
791 else
792 reg &= ~PALMAS_LDO1_CTRL_MODE_SLEEP;
793
794 ret = palmas_ldo_write(palmas, addr, reg);
795 if (ret)
796 return ret;
797
798 if (reg_init->roof_floor) {
799 /* Enable externally controlled regulator */
800 ret = palmas_update_bits(palmas, PALMAS_LDO_BASE,
801 addr, PALMAS_LDO1_CTRL_MODE_ACTIVE,
802 PALMAS_LDO1_CTRL_MODE_ACTIVE);
803 if (ret < 0) {
804 dev_err(palmas->dev,
805 "LDO Register 0x%02x update failed %d\n",
806 addr, ret);
807 return ret;
808 }
809 return palmas_regulator_config_external(palmas, id, reg_init);
810 }
811 return 0;
812 }
813
palmas_extreg_init(struct palmas * palmas,int id,struct palmas_reg_init * reg_init)814 static int palmas_extreg_init(struct palmas *palmas, int id,
815 struct palmas_reg_init *reg_init)
816 {
817 unsigned int addr;
818 int ret;
819 unsigned int val = 0;
820 struct palmas_pmic_driver_data *ddata = palmas->pmic_ddata;
821 struct palmas_regs_info *rinfo = &ddata->palmas_regs_info[id];
822
823 addr = rinfo->ctrl_addr;
824
825 if (reg_init->mode_sleep)
826 val = PALMAS_REGEN1_CTRL_MODE_SLEEP;
827
828 ret = palmas_update_bits(palmas, PALMAS_RESOURCE_BASE,
829 addr, PALMAS_REGEN1_CTRL_MODE_SLEEP, val);
830 if (ret < 0) {
831 dev_err(palmas->dev, "Resource reg 0x%02x update failed %d\n",
832 addr, ret);
833 return ret;
834 }
835
836 if (reg_init->roof_floor) {
837 /* Enable externally controlled regulator */
838 ret = palmas_update_bits(palmas, PALMAS_RESOURCE_BASE,
839 addr, PALMAS_REGEN1_CTRL_MODE_ACTIVE,
840 PALMAS_REGEN1_CTRL_MODE_ACTIVE);
841 if (ret < 0) {
842 dev_err(palmas->dev,
843 "Resource Register 0x%02x update failed %d\n",
844 addr, ret);
845 return ret;
846 }
847 return palmas_regulator_config_external(palmas, id, reg_init);
848 }
849 return 0;
850 }
851
palmas_enable_ldo8_track(struct palmas * palmas)852 static void palmas_enable_ldo8_track(struct palmas *palmas)
853 {
854 unsigned int reg;
855 unsigned int addr;
856 int ret;
857 struct palmas_pmic_driver_data *ddata = palmas->pmic_ddata;
858 struct palmas_regs_info *rinfo;
859
860 rinfo = &ddata->palmas_regs_info[PALMAS_REG_LDO8];
861 addr = rinfo->ctrl_addr;
862
863 ret = palmas_ldo_read(palmas, addr, ®);
864 if (ret) {
865 dev_err(palmas->dev, "Error in reading ldo8 control reg\n");
866 return;
867 }
868
869 reg |= PALMAS_LDO8_CTRL_LDO_TRACKING_EN;
870 ret = palmas_ldo_write(palmas, addr, reg);
871 if (ret < 0) {
872 dev_err(palmas->dev, "Error in enabling tracking mode\n");
873 return;
874 }
875 /*
876 * When SMPS45 is set to off and LDO8 tracking is enabled, the LDO8
877 * output is defined by the LDO8_VOLTAGE.VSEL register divided by two,
878 * and can be set from 0.45 to 1.65 V.
879 */
880 addr = rinfo->vsel_addr;
881 ret = palmas_ldo_read(palmas, addr, ®);
882 if (ret) {
883 dev_err(palmas->dev, "Error in reading ldo8 voltage reg\n");
884 return;
885 }
886
887 reg = (reg << 1) & PALMAS_LDO8_VOLTAGE_VSEL_MASK;
888 ret = palmas_ldo_write(palmas, addr, reg);
889 if (ret < 0)
890 dev_err(palmas->dev, "Error in setting ldo8 voltage reg\n");
891
892 return;
893 }
894
palmas_ldo_registration(struct palmas_pmic * pmic,struct palmas_pmic_driver_data * ddata,struct palmas_pmic_platform_data * pdata,const char * pdev_name,struct regulator_config config)895 static int palmas_ldo_registration(struct palmas_pmic *pmic,
896 struct palmas_pmic_driver_data *ddata,
897 struct palmas_pmic_platform_data *pdata,
898 const char *pdev_name,
899 struct regulator_config config)
900 {
901 int id, ret;
902 struct regulator_dev *rdev;
903 struct palmas_reg_init *reg_init;
904 struct palmas_regs_info *rinfo;
905 struct regulator_desc *desc;
906
907 for (id = ddata->ldo_begin; id < ddata->max_reg; id++) {
908 if (pdata && pdata->reg_init[id])
909 reg_init = pdata->reg_init[id];
910 else
911 reg_init = NULL;
912
913 rinfo = &ddata->palmas_regs_info[id];
914 /* Miss out regulators which are not available due
915 * to alternate functions.
916 */
917
918 /* Register the regulators */
919 desc = &pmic->desc[id];
920 desc->name = rinfo->name;
921 desc->id = id;
922 desc->type = REGULATOR_VOLTAGE;
923 desc->owner = THIS_MODULE;
924
925 if (id < PALMAS_REG_REGEN1) {
926 desc->n_voltages = PALMAS_LDO_NUM_VOLTAGES;
927 if (reg_init && reg_init->roof_floor)
928 desc->ops = &palmas_ops_ext_control_ldo;
929 else
930 desc->ops = &palmas_ops_ldo;
931 desc->min_uV = 900000;
932 desc->uV_step = 50000;
933 desc->linear_min_sel = 1;
934 desc->enable_time = 500;
935 desc->vsel_reg = PALMAS_BASE_TO_REG(PALMAS_LDO_BASE,
936 rinfo->vsel_addr);
937 desc->vsel_mask = PALMAS_LDO1_VOLTAGE_VSEL_MASK;
938 desc->enable_reg = PALMAS_BASE_TO_REG(PALMAS_LDO_BASE,
939 rinfo->ctrl_addr);
940 desc->enable_mask = PALMAS_LDO1_CTRL_MODE_ACTIVE;
941
942 /* Check if LDO8 is in tracking mode or not */
943 if (pdata && (id == PALMAS_REG_LDO8) &&
944 pdata->enable_ldo8_tracking) {
945 palmas_enable_ldo8_track(pmic->palmas);
946 desc->min_uV = 450000;
947 desc->uV_step = 25000;
948 }
949
950 /* LOD6 in vibrator mode will have enable time 2000us */
951 if (pdata && pdata->ldo6_vibrator &&
952 (id == PALMAS_REG_LDO6))
953 desc->enable_time = 2000;
954
955 if (id == PALMAS_REG_LDO9) {
956 desc->ops = &palmas_ops_ldo9;
957 desc->bypass_reg = desc->enable_reg;
958 desc->bypass_val_on =
959 PALMAS_LDO9_CTRL_LDO_BYPASS_EN;
960 desc->bypass_mask =
961 PALMAS_LDO9_CTRL_LDO_BYPASS_EN;
962 }
963 } else {
964 if (!ddata->has_regen3 && id == PALMAS_REG_REGEN3)
965 continue;
966
967 desc->n_voltages = 1;
968 if (reg_init && reg_init->roof_floor)
969 desc->ops = &palmas_ops_ext_control_extreg;
970 else
971 desc->ops = &palmas_ops_extreg;
972 desc->enable_reg =
973 PALMAS_BASE_TO_REG(PALMAS_RESOURCE_BASE,
974 rinfo->ctrl_addr);
975 desc->enable_mask = PALMAS_REGEN1_CTRL_MODE_ACTIVE;
976 }
977
978 if (pdata)
979 config.init_data = pdata->reg_data[id];
980 else
981 config.init_data = NULL;
982
983 desc->supply_name = rinfo->sname;
984 config.of_node = ddata->palmas_matches[id].of_node;
985
986 rdev = devm_regulator_register(pmic->dev, desc, &config);
987 if (IS_ERR(rdev)) {
988 dev_err(pmic->dev,
989 "failed to register %s regulator\n",
990 pdev_name);
991 return PTR_ERR(rdev);
992 }
993
994 /* Save regulator for cleanup */
995 pmic->rdev[id] = rdev;
996
997 /* Initialise sleep/init values from platform data */
998 if (pdata) {
999 reg_init = pdata->reg_init[id];
1000 if (reg_init) {
1001 if (id <= ddata->ldo_end)
1002 ret = palmas_ldo_init(pmic->palmas, id,
1003 reg_init);
1004 else
1005 ret = palmas_extreg_init(pmic->palmas,
1006 id, reg_init);
1007 if (ret)
1008 return ret;
1009 }
1010 }
1011 }
1012
1013 return 0;
1014 }
1015
tps65917_ldo_registration(struct palmas_pmic * pmic,struct palmas_pmic_driver_data * ddata,struct palmas_pmic_platform_data * pdata,const char * pdev_name,struct regulator_config config)1016 static int tps65917_ldo_registration(struct palmas_pmic *pmic,
1017 struct palmas_pmic_driver_data *ddata,
1018 struct palmas_pmic_platform_data *pdata,
1019 const char *pdev_name,
1020 struct regulator_config config)
1021 {
1022 int id, ret;
1023 struct regulator_dev *rdev;
1024 struct palmas_reg_init *reg_init;
1025 struct palmas_regs_info *rinfo;
1026 struct regulator_desc *desc;
1027
1028 for (id = ddata->ldo_begin; id < ddata->max_reg; id++) {
1029 if (pdata && pdata->reg_init[id])
1030 reg_init = pdata->reg_init[id];
1031 else
1032 reg_init = NULL;
1033
1034 /* Miss out regulators which are not available due
1035 * to alternate functions.
1036 */
1037 rinfo = &ddata->palmas_regs_info[id];
1038
1039 /* Register the regulators */
1040 desc = &pmic->desc[id];
1041 desc->name = rinfo->name;
1042 desc->id = id;
1043 desc->type = REGULATOR_VOLTAGE;
1044 desc->owner = THIS_MODULE;
1045
1046 if (id < TPS65917_REG_REGEN1) {
1047 desc->n_voltages = PALMAS_LDO_NUM_VOLTAGES;
1048 if (reg_init && reg_init->roof_floor)
1049 desc->ops = &palmas_ops_ext_control_ldo;
1050 else
1051 desc->ops = &tps65917_ops_ldo;
1052 desc->min_uV = 900000;
1053 desc->uV_step = 50000;
1054 desc->linear_min_sel = 1;
1055 desc->enable_time = 500;
1056 desc->vsel_reg = PALMAS_BASE_TO_REG(PALMAS_LDO_BASE,
1057 rinfo->vsel_addr);
1058 desc->vsel_mask = PALMAS_LDO1_VOLTAGE_VSEL_MASK;
1059 desc->enable_reg = PALMAS_BASE_TO_REG(PALMAS_LDO_BASE,
1060 rinfo->ctrl_addr);
1061 desc->enable_mask = PALMAS_LDO1_CTRL_MODE_ACTIVE;
1062 /*
1063 * To be confirmed. Discussion on going with PMIC Team.
1064 * It is of the order of ~60mV/uS.
1065 */
1066 desc->ramp_delay = 2500;
1067 if (id == TPS65917_REG_LDO1 ||
1068 id == TPS65917_REG_LDO2) {
1069 desc->ops = &tps65917_ops_ldo_1_2;
1070 desc->bypass_reg = desc->enable_reg;
1071 desc->bypass_val_on =
1072 TPS65917_LDO1_CTRL_BYPASS_EN;
1073 desc->bypass_mask =
1074 TPS65917_LDO1_CTRL_BYPASS_EN;
1075 }
1076 } else {
1077 desc->n_voltages = 1;
1078 if (reg_init && reg_init->roof_floor)
1079 desc->ops = &palmas_ops_ext_control_extreg;
1080 else
1081 desc->ops = &palmas_ops_extreg;
1082 desc->enable_reg =
1083 PALMAS_BASE_TO_REG(PALMAS_RESOURCE_BASE,
1084 rinfo->ctrl_addr);
1085 desc->enable_mask = PALMAS_REGEN1_CTRL_MODE_ACTIVE;
1086 }
1087
1088 if (pdata)
1089 config.init_data = pdata->reg_data[id];
1090 else
1091 config.init_data = NULL;
1092
1093 desc->supply_name = rinfo->sname;
1094 config.of_node = ddata->palmas_matches[id].of_node;
1095
1096 rdev = devm_regulator_register(pmic->dev, desc, &config);
1097 if (IS_ERR(rdev)) {
1098 dev_err(pmic->dev,
1099 "failed to register %s regulator\n",
1100 pdev_name);
1101 return PTR_ERR(rdev);
1102 }
1103
1104 /* Save regulator for cleanup */
1105 pmic->rdev[id] = rdev;
1106
1107 /* Initialise sleep/init values from platform data */
1108 if (pdata) {
1109 reg_init = pdata->reg_init[id];
1110 if (reg_init) {
1111 if (id < TPS65917_REG_REGEN1)
1112 ret = palmas_ldo_init(pmic->palmas,
1113 id, reg_init);
1114 else
1115 ret = palmas_extreg_init(pmic->palmas,
1116 id, reg_init);
1117 if (ret)
1118 return ret;
1119 }
1120 }
1121 }
1122
1123 return 0;
1124 }
1125
palmas_smps_registration(struct palmas_pmic * pmic,struct palmas_pmic_driver_data * ddata,struct palmas_pmic_platform_data * pdata,const char * pdev_name,struct regulator_config config)1126 static int palmas_smps_registration(struct palmas_pmic *pmic,
1127 struct palmas_pmic_driver_data *ddata,
1128 struct palmas_pmic_platform_data *pdata,
1129 const char *pdev_name,
1130 struct regulator_config config)
1131 {
1132 int id, ret;
1133 unsigned int addr, reg;
1134 struct regulator_dev *rdev;
1135 struct palmas_reg_init *reg_init;
1136 struct palmas_regs_info *rinfo;
1137 struct regulator_desc *desc;
1138
1139 for (id = ddata->smps_start; id <= ddata->smps_end; id++) {
1140 bool ramp_delay_support = false;
1141
1142 /*
1143 * Miss out regulators which are not available due
1144 * to slaving configurations.
1145 */
1146 switch (id) {
1147 case PALMAS_REG_SMPS12:
1148 case PALMAS_REG_SMPS3:
1149 if (pmic->smps123)
1150 continue;
1151 if (id == PALMAS_REG_SMPS12)
1152 ramp_delay_support = true;
1153 break;
1154 case PALMAS_REG_SMPS123:
1155 if (!pmic->smps123)
1156 continue;
1157 ramp_delay_support = true;
1158 break;
1159 case PALMAS_REG_SMPS45:
1160 case PALMAS_REG_SMPS7:
1161 if (pmic->smps457)
1162 continue;
1163 if (id == PALMAS_REG_SMPS45)
1164 ramp_delay_support = true;
1165 break;
1166 case PALMAS_REG_SMPS457:
1167 if (!pmic->smps457)
1168 continue;
1169 ramp_delay_support = true;
1170 break;
1171 case PALMAS_REG_SMPS10_OUT1:
1172 case PALMAS_REG_SMPS10_OUT2:
1173 if (!PALMAS_PMIC_HAS(pmic->palmas, SMPS10_BOOST))
1174 continue;
1175 }
1176 rinfo = &ddata->palmas_regs_info[id];
1177 desc = &pmic->desc[id];
1178
1179 if ((id == PALMAS_REG_SMPS6) || (id == PALMAS_REG_SMPS8))
1180 ramp_delay_support = true;
1181
1182 if (ramp_delay_support) {
1183 addr = rinfo->tstep_addr;
1184 ret = palmas_smps_read(pmic->palmas, addr, ®);
1185 if (ret < 0) {
1186 dev_err(pmic->dev,
1187 "reading TSTEP reg failed: %d\n", ret);
1188 return ret;
1189 }
1190 desc->ramp_delay = palmas_smps_ramp_delay[reg & 0x3];
1191 pmic->ramp_delay[id] = desc->ramp_delay;
1192 }
1193
1194 /* Initialise sleep/init values from platform data */
1195 if (pdata && pdata->reg_init[id]) {
1196 reg_init = pdata->reg_init[id];
1197 ret = palmas_smps_init(pmic->palmas, id, reg_init);
1198 if (ret)
1199 return ret;
1200 } else {
1201 reg_init = NULL;
1202 }
1203
1204 /* Register the regulators */
1205 desc->name = rinfo->name;
1206 desc->id = id;
1207
1208 switch (id) {
1209 case PALMAS_REG_SMPS10_OUT1:
1210 case PALMAS_REG_SMPS10_OUT2:
1211 desc->n_voltages = PALMAS_SMPS10_NUM_VOLTAGES;
1212 desc->ops = &palmas_ops_smps10;
1213 desc->vsel_reg = PALMAS_BASE_TO_REG(PALMAS_SMPS_BASE,
1214 PALMAS_SMPS10_CTRL);
1215 desc->vsel_mask = SMPS10_VSEL;
1216 desc->enable_reg = PALMAS_BASE_TO_REG(PALMAS_SMPS_BASE,
1217 PALMAS_SMPS10_CTRL);
1218 if (id == PALMAS_REG_SMPS10_OUT1)
1219 desc->enable_mask = SMPS10_SWITCH_EN;
1220 else
1221 desc->enable_mask = SMPS10_BOOST_EN;
1222 desc->bypass_reg = PALMAS_BASE_TO_REG(PALMAS_SMPS_BASE,
1223 PALMAS_SMPS10_CTRL);
1224 desc->bypass_val_on = SMPS10_BYPASS_EN;
1225 desc->bypass_mask = SMPS10_BYPASS_EN;
1226 desc->min_uV = 3750000;
1227 desc->uV_step = 1250000;
1228 break;
1229 default:
1230 /*
1231 * Read and store the RANGE bit for later use
1232 * This must be done before regulator is probed,
1233 * otherwise we error in probe with unsupportable
1234 * ranges. Read the current smps mode for later use.
1235 */
1236 addr = rinfo->vsel_addr;
1237 desc->n_linear_ranges = 3;
1238
1239 ret = palmas_smps_read(pmic->palmas, addr, ®);
1240 if (ret)
1241 return ret;
1242 if (reg & PALMAS_SMPS12_VOLTAGE_RANGE)
1243 pmic->range[id] = 1;
1244 if (pmic->range[id])
1245 desc->linear_ranges = smps_high_ranges;
1246 else
1247 desc->linear_ranges = smps_low_ranges;
1248
1249 if (reg_init && reg_init->roof_floor)
1250 desc->ops = &palmas_ops_ext_control_smps;
1251 else
1252 desc->ops = &palmas_ops_smps;
1253 desc->n_voltages = PALMAS_SMPS_NUM_VOLTAGES;
1254 desc->vsel_reg = PALMAS_BASE_TO_REG(PALMAS_SMPS_BASE,
1255 rinfo->vsel_addr);
1256 desc->vsel_mask = PALMAS_SMPS12_VOLTAGE_VSEL_MASK;
1257
1258 /* Read the smps mode for later use. */
1259 addr = rinfo->ctrl_addr;
1260 ret = palmas_smps_read(pmic->palmas, addr, ®);
1261 if (ret)
1262 return ret;
1263 pmic->current_reg_mode[id] = reg &
1264 PALMAS_SMPS12_CTRL_MODE_ACTIVE_MASK;
1265
1266 desc->enable_reg = PALMAS_BASE_TO_REG(PALMAS_SMPS_BASE,
1267 rinfo->ctrl_addr);
1268 desc->enable_mask = PALMAS_SMPS12_CTRL_MODE_ACTIVE_MASK;
1269 /* set_mode overrides this value */
1270 desc->enable_val = SMPS_CTRL_MODE_ON;
1271 }
1272
1273 desc->type = REGULATOR_VOLTAGE;
1274 desc->owner = THIS_MODULE;
1275
1276 if (pdata)
1277 config.init_data = pdata->reg_data[id];
1278 else
1279 config.init_data = NULL;
1280
1281 desc->supply_name = rinfo->sname;
1282 config.of_node = ddata->palmas_matches[id].of_node;
1283
1284 rdev = devm_regulator_register(pmic->dev, desc, &config);
1285 if (IS_ERR(rdev)) {
1286 dev_err(pmic->dev,
1287 "failed to register %s regulator\n",
1288 pdev_name);
1289 return PTR_ERR(rdev);
1290 }
1291
1292 /* Save regulator for cleanup */
1293 pmic->rdev[id] = rdev;
1294 }
1295
1296 return 0;
1297 }
1298
tps65917_smps_registration(struct palmas_pmic * pmic,struct palmas_pmic_driver_data * ddata,struct palmas_pmic_platform_data * pdata,const char * pdev_name,struct regulator_config config)1299 static int tps65917_smps_registration(struct palmas_pmic *pmic,
1300 struct palmas_pmic_driver_data *ddata,
1301 struct palmas_pmic_platform_data *pdata,
1302 const char *pdev_name,
1303 struct regulator_config config)
1304 {
1305 int id, ret;
1306 unsigned int addr, reg;
1307 struct regulator_dev *rdev;
1308 struct palmas_reg_init *reg_init;
1309 struct palmas_regs_info *rinfo;
1310 struct regulator_desc *desc;
1311
1312 for (id = ddata->smps_start; id <= ddata->smps_end; id++) {
1313 /*
1314 * Miss out regulators which are not available due
1315 * to slaving configurations.
1316 */
1317 desc = &pmic->desc[id];
1318 desc->n_linear_ranges = 3;
1319 if ((id == TPS65917_REG_SMPS2 || id == TPS65917_REG_SMPS1) &&
1320 pmic->smps12)
1321 continue;
1322
1323 /* Initialise sleep/init values from platform data */
1324 if (pdata && pdata->reg_init[id]) {
1325 reg_init = pdata->reg_init[id];
1326 ret = palmas_smps_init(pmic->palmas, id, reg_init);
1327 if (ret)
1328 return ret;
1329 } else {
1330 reg_init = NULL;
1331 }
1332 rinfo = &ddata->palmas_regs_info[id];
1333
1334 /* Register the regulators */
1335 desc->name = rinfo->name;
1336 desc->id = id;
1337
1338 /*
1339 * Read and store the RANGE bit for later use
1340 * This must be done before regulator is probed,
1341 * otherwise we error in probe with unsupportable
1342 * ranges. Read the current smps mode for later use.
1343 */
1344 addr = rinfo->vsel_addr;
1345
1346 ret = palmas_smps_read(pmic->palmas, addr, ®);
1347 if (ret)
1348 return ret;
1349 if (reg & TPS65917_SMPS1_VOLTAGE_RANGE)
1350 pmic->range[id] = 1;
1351
1352 if (pmic->range[id])
1353 desc->linear_ranges = smps_high_ranges;
1354 else
1355 desc->linear_ranges = smps_low_ranges;
1356
1357 if (reg_init && reg_init->roof_floor)
1358 desc->ops = &tps65917_ops_ext_control_smps;
1359 else
1360 desc->ops = &tps65917_ops_smps;
1361 desc->n_voltages = PALMAS_SMPS_NUM_VOLTAGES;
1362 desc->vsel_reg = PALMAS_BASE_TO_REG(PALMAS_SMPS_BASE,
1363 rinfo->vsel_addr);
1364 desc->vsel_mask = PALMAS_SMPS12_VOLTAGE_VSEL_MASK;
1365 desc->ramp_delay = 2500;
1366
1367 /* Read the smps mode for later use. */
1368 addr = rinfo->ctrl_addr;
1369 ret = palmas_smps_read(pmic->palmas, addr, ®);
1370 if (ret)
1371 return ret;
1372 pmic->current_reg_mode[id] = reg &
1373 PALMAS_SMPS12_CTRL_MODE_ACTIVE_MASK;
1374 desc->enable_reg = PALMAS_BASE_TO_REG(PALMAS_SMPS_BASE,
1375 rinfo->ctrl_addr);
1376 desc->enable_mask = PALMAS_SMPS12_CTRL_MODE_ACTIVE_MASK;
1377 /* set_mode overrides this value */
1378 desc->enable_val = SMPS_CTRL_MODE_ON;
1379
1380 desc->type = REGULATOR_VOLTAGE;
1381 desc->owner = THIS_MODULE;
1382
1383 if (pdata)
1384 config.init_data = pdata->reg_data[id];
1385 else
1386 config.init_data = NULL;
1387
1388 desc->supply_name = rinfo->sname;
1389 config.of_node = ddata->palmas_matches[id].of_node;
1390
1391 rdev = devm_regulator_register(pmic->dev, desc, &config);
1392 if (IS_ERR(rdev)) {
1393 dev_err(pmic->dev,
1394 "failed to register %s regulator\n",
1395 pdev_name);
1396 return PTR_ERR(rdev);
1397 }
1398
1399 /* Save regulator for cleanup */
1400 pmic->rdev[id] = rdev;
1401 }
1402
1403 return 0;
1404 }
1405
1406 static struct of_regulator_match palmas_matches[] = {
1407 { .name = "smps12", },
1408 { .name = "smps123", },
1409 { .name = "smps3", },
1410 { .name = "smps45", },
1411 { .name = "smps457", },
1412 { .name = "smps6", },
1413 { .name = "smps7", },
1414 { .name = "smps8", },
1415 { .name = "smps9", },
1416 { .name = "smps10_out2", },
1417 { .name = "smps10_out1", },
1418 { .name = "ldo1", },
1419 { .name = "ldo2", },
1420 { .name = "ldo3", },
1421 { .name = "ldo4", },
1422 { .name = "ldo5", },
1423 { .name = "ldo6", },
1424 { .name = "ldo7", },
1425 { .name = "ldo8", },
1426 { .name = "ldo9", },
1427 { .name = "ldoln", },
1428 { .name = "ldousb", },
1429 { .name = "regen1", },
1430 { .name = "regen2", },
1431 { .name = "regen3", },
1432 { .name = "sysen1", },
1433 { .name = "sysen2", },
1434 };
1435
1436 static struct of_regulator_match tps65917_matches[] = {
1437 { .name = "smps1", },
1438 { .name = "smps2", },
1439 { .name = "smps3", },
1440 { .name = "smps4", },
1441 { .name = "smps5", },
1442 { .name = "smps12",},
1443 { .name = "ldo1", },
1444 { .name = "ldo2", },
1445 { .name = "ldo3", },
1446 { .name = "ldo4", },
1447 { .name = "ldo5", },
1448 { .name = "regen1", },
1449 { .name = "regen2", },
1450 { .name = "regen3", },
1451 { .name = "sysen1", },
1452 { .name = "sysen2", },
1453 };
1454
1455 static struct palmas_pmic_driver_data palmas_ddata = {
1456 .smps_start = PALMAS_REG_SMPS12,
1457 .smps_end = PALMAS_REG_SMPS10_OUT1,
1458 .ldo_begin = PALMAS_REG_LDO1,
1459 .ldo_end = PALMAS_REG_LDOUSB,
1460 .max_reg = PALMAS_NUM_REGS,
1461 .has_regen3 = true,
1462 .palmas_regs_info = palmas_generic_regs_info,
1463 .palmas_matches = palmas_matches,
1464 .sleep_req_info = palma_sleep_req_info,
1465 .smps_register = palmas_smps_registration,
1466 .ldo_register = palmas_ldo_registration,
1467 };
1468
1469 static struct palmas_pmic_driver_data tps65917_ddata = {
1470 .smps_start = TPS65917_REG_SMPS1,
1471 .smps_end = TPS65917_REG_SMPS12,
1472 .ldo_begin = TPS65917_REG_LDO1,
1473 .ldo_end = TPS65917_REG_LDO5,
1474 .max_reg = TPS65917_NUM_REGS,
1475 .has_regen3 = true,
1476 .palmas_regs_info = tps65917_regs_info,
1477 .palmas_matches = tps65917_matches,
1478 .sleep_req_info = tps65917_sleep_req_info,
1479 .smps_register = tps65917_smps_registration,
1480 .ldo_register = tps65917_ldo_registration,
1481 };
1482
palmas_dt_to_pdata(struct device * dev,struct device_node * node,struct palmas_pmic_platform_data * pdata,struct palmas_pmic_driver_data * ddata)1483 static int palmas_dt_to_pdata(struct device *dev,
1484 struct device_node *node,
1485 struct palmas_pmic_platform_data *pdata,
1486 struct palmas_pmic_driver_data *ddata)
1487 {
1488 struct device_node *regulators;
1489 u32 prop;
1490 int idx, ret;
1491
1492 regulators = of_get_child_by_name(node, "regulators");
1493 if (!regulators) {
1494 dev_info(dev, "regulator node not found\n");
1495 return 0;
1496 }
1497
1498 ret = of_regulator_match(dev, regulators, ddata->palmas_matches,
1499 ddata->max_reg);
1500 of_node_put(regulators);
1501 if (ret < 0) {
1502 dev_err(dev, "Error parsing regulator init data: %d\n", ret);
1503 return 0;
1504 }
1505
1506 for (idx = 0; idx < ddata->max_reg; idx++) {
1507 struct of_regulator_match *match;
1508 struct palmas_reg_init *rinit;
1509 struct device_node *np;
1510
1511 match = &ddata->palmas_matches[idx];
1512 np = match->of_node;
1513
1514 if (!match->init_data || !np)
1515 continue;
1516
1517 rinit = devm_kzalloc(dev, sizeof(*rinit), GFP_KERNEL);
1518 if (!rinit)
1519 return -ENOMEM;
1520
1521 pdata->reg_data[idx] = match->init_data;
1522 pdata->reg_init[idx] = rinit;
1523
1524 rinit->warm_reset = of_property_read_bool(np, "ti,warm-reset");
1525 ret = of_property_read_u32(np, "ti,roof-floor", &prop);
1526 /* EINVAL: Property not found */
1527 if (ret != -EINVAL) {
1528 int econtrol;
1529
1530 /* use default value, when no value is specified */
1531 econtrol = PALMAS_EXT_CONTROL_NSLEEP;
1532 if (!ret) {
1533 switch (prop) {
1534 case 1:
1535 econtrol = PALMAS_EXT_CONTROL_ENABLE1;
1536 break;
1537 case 2:
1538 econtrol = PALMAS_EXT_CONTROL_ENABLE2;
1539 break;
1540 case 3:
1541 econtrol = PALMAS_EXT_CONTROL_NSLEEP;
1542 break;
1543 default:
1544 WARN_ON(1);
1545 dev_warn(dev,
1546 "%s: Invalid roof-floor option: %u\n",
1547 match->name, prop);
1548 break;
1549 }
1550 }
1551 rinit->roof_floor = econtrol;
1552 }
1553
1554 ret = of_property_read_u32(np, "ti,mode-sleep", &prop);
1555 if (!ret)
1556 rinit->mode_sleep = prop;
1557
1558 ret = of_property_read_bool(np, "ti,smps-range");
1559 if (ret)
1560 rinit->vsel = PALMAS_SMPS12_VOLTAGE_RANGE;
1561
1562 if (idx == PALMAS_REG_LDO8)
1563 pdata->enable_ldo8_tracking = of_property_read_bool(
1564 np, "ti,enable-ldo8-tracking");
1565 }
1566
1567 pdata->ldo6_vibrator = of_property_read_bool(node, "ti,ldo6-vibrator");
1568
1569 return 0;
1570 }
1571
1572 static const struct of_device_id of_palmas_match_tbl[] = {
1573 {
1574 .compatible = "ti,palmas-pmic",
1575 .data = &palmas_ddata,
1576 },
1577 {
1578 .compatible = "ti,twl6035-pmic",
1579 .data = &palmas_ddata,
1580 },
1581 {
1582 .compatible = "ti,twl6036-pmic",
1583 .data = &palmas_ddata,
1584 },
1585 {
1586 .compatible = "ti,twl6037-pmic",
1587 .data = &palmas_ddata,
1588 },
1589 {
1590 .compatible = "ti,tps65913-pmic",
1591 .data = &palmas_ddata,
1592 },
1593 {
1594 .compatible = "ti,tps65914-pmic",
1595 .data = &palmas_ddata,
1596 },
1597 {
1598 .compatible = "ti,tps80036-pmic",
1599 .data = &palmas_ddata,
1600 },
1601 {
1602 .compatible = "ti,tps659038-pmic",
1603 .data = &palmas_ddata,
1604 },
1605 {
1606 .compatible = "ti,tps65917-pmic",
1607 .data = &tps65917_ddata,
1608 },
1609 { /* end */ }
1610 };
1611
palmas_regulators_probe(struct platform_device * pdev)1612 static int palmas_regulators_probe(struct platform_device *pdev)
1613 {
1614 struct palmas *palmas = dev_get_drvdata(pdev->dev.parent);
1615 struct palmas_pmic_platform_data *pdata = dev_get_platdata(&pdev->dev);
1616 struct device_node *node = pdev->dev.of_node;
1617 struct palmas_pmic_driver_data *driver_data;
1618 struct regulator_config config = { };
1619 struct palmas_pmic *pmic;
1620 const char *pdev_name;
1621 const struct of_device_id *match;
1622 int ret = 0;
1623 unsigned int reg;
1624
1625 match = of_match_device(of_match_ptr(of_palmas_match_tbl), &pdev->dev);
1626
1627 if (!match)
1628 return -ENODATA;
1629
1630 driver_data = (struct palmas_pmic_driver_data *)match->data;
1631 pdata = devm_kzalloc(&pdev->dev, sizeof(*pdata), GFP_KERNEL);
1632 if (!pdata)
1633 return -ENOMEM;
1634
1635 pmic = devm_kzalloc(&pdev->dev, sizeof(*pmic), GFP_KERNEL);
1636 if (!pmic)
1637 return -ENOMEM;
1638
1639 if (of_device_is_compatible(node, "ti,tps659038-pmic")) {
1640 palmas_generic_regs_info[PALMAS_REG_REGEN2].ctrl_addr =
1641 TPS659038_REGEN2_CTRL;
1642 palmas_ddata.has_regen3 = false;
1643 }
1644
1645 pmic->dev = &pdev->dev;
1646 pmic->palmas = palmas;
1647 palmas->pmic = pmic;
1648 platform_set_drvdata(pdev, pmic);
1649 pmic->palmas->pmic_ddata = driver_data;
1650
1651 ret = palmas_dt_to_pdata(&pdev->dev, node, pdata, driver_data);
1652 if (ret)
1653 return ret;
1654
1655 ret = palmas_smps_read(palmas, PALMAS_SMPS_CTRL, ®);
1656 if (ret)
1657 return ret;
1658
1659 if (reg & PALMAS_SMPS_CTRL_SMPS12_SMPS123_EN) {
1660 pmic->smps123 = 1;
1661 pmic->smps12 = 1;
1662 }
1663
1664 if (reg & PALMAS_SMPS_CTRL_SMPS45_SMPS457_EN)
1665 pmic->smps457 = 1;
1666
1667 config.regmap = palmas->regmap[REGULATOR_SLAVE];
1668 config.dev = &pdev->dev;
1669 config.driver_data = pmic;
1670 pdev_name = pdev->name;
1671
1672 ret = driver_data->smps_register(pmic, driver_data, pdata, pdev_name,
1673 config);
1674 if (ret)
1675 return ret;
1676
1677 ret = driver_data->ldo_register(pmic, driver_data, pdata, pdev_name,
1678 config);
1679
1680 return ret;
1681 }
1682
1683 static struct platform_driver palmas_driver = {
1684 .driver = {
1685 .name = "palmas-pmic",
1686 .of_match_table = of_palmas_match_tbl,
1687 },
1688 .probe = palmas_regulators_probe,
1689 };
1690
palmas_init(void)1691 static int __init palmas_init(void)
1692 {
1693 return platform_driver_register(&palmas_driver);
1694 }
1695 subsys_initcall(palmas_init);
1696
palmas_exit(void)1697 static void __exit palmas_exit(void)
1698 {
1699 platform_driver_unregister(&palmas_driver);
1700 }
1701 module_exit(palmas_exit);
1702
1703 MODULE_AUTHOR("Graeme Gregory <gg@slimlogic.co.uk>");
1704 MODULE_DESCRIPTION("Palmas voltage regulator driver");
1705 MODULE_LICENSE("GPL");
1706 MODULE_ALIAS("platform:palmas-pmic");
1707 MODULE_DEVICE_TABLE(of, of_palmas_match_tbl);
1708