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 struct palmas_pmic *pmic = rdev_get_drvdata(dev);
447 struct palmas_pmic_driver_data *ddata = pmic->palmas->pmic_ddata;
448 struct palmas_regs_info *rinfo = &ddata->palmas_regs_info[id];
449 unsigned int reg;
450 bool rail_enable = true;
451
452 palmas_smps_read(pmic->palmas, rinfo->ctrl_addr, ®);
453
454 reg &= ~PALMAS_SMPS12_CTRL_MODE_ACTIVE_MASK;
455
456 if (reg == SMPS_CTRL_MODE_OFF)
457 rail_enable = false;
458
459 switch (mode) {
460 case REGULATOR_MODE_NORMAL:
461 reg |= SMPS_CTRL_MODE_ON;
462 break;
463 case REGULATOR_MODE_IDLE:
464 reg |= SMPS_CTRL_MODE_ECO;
465 break;
466 case REGULATOR_MODE_FAST:
467 reg |= SMPS_CTRL_MODE_PWM;
468 break;
469 default:
470 return -EINVAL;
471 }
472
473 pmic->current_reg_mode[id] = reg & PALMAS_SMPS12_CTRL_MODE_ACTIVE_MASK;
474 if (rail_enable)
475 palmas_smps_write(pmic->palmas, rinfo->ctrl_addr, reg);
476
477 /* Switch the enable value to ensure this is used for enable */
478 pmic->desc[id].enable_val = pmic->current_reg_mode[id];
479
480 return 0;
481 }
482
palmas_get_mode_smps(struct regulator_dev * dev)483 static unsigned int palmas_get_mode_smps(struct regulator_dev *dev)
484 {
485 struct palmas_pmic *pmic = rdev_get_drvdata(dev);
486 int id = rdev_get_id(dev);
487 unsigned int reg;
488
489 reg = pmic->current_reg_mode[id] & PALMAS_SMPS12_CTRL_MODE_ACTIVE_MASK;
490
491 switch (reg) {
492 case SMPS_CTRL_MODE_ON:
493 return REGULATOR_MODE_NORMAL;
494 case SMPS_CTRL_MODE_ECO:
495 return REGULATOR_MODE_IDLE;
496 case SMPS_CTRL_MODE_PWM:
497 return REGULATOR_MODE_FAST;
498 }
499
500 return 0;
501 }
502
palmas_smps_set_ramp_delay(struct regulator_dev * rdev,int ramp_delay)503 static int palmas_smps_set_ramp_delay(struct regulator_dev *rdev,
504 int ramp_delay)
505 {
506 int id = rdev_get_id(rdev);
507 struct palmas_pmic *pmic = rdev_get_drvdata(rdev);
508 struct palmas_pmic_driver_data *ddata = pmic->palmas->pmic_ddata;
509 struct palmas_regs_info *rinfo = &ddata->palmas_regs_info[id];
510 unsigned int reg = 0;
511 int ret;
512
513 /* SMPS3 and SMPS7 do not have tstep_addr setting */
514 switch (id) {
515 case PALMAS_REG_SMPS3:
516 case PALMAS_REG_SMPS7:
517 return 0;
518 }
519
520 if (ramp_delay <= 0)
521 reg = 0;
522 else if (ramp_delay <= 2500)
523 reg = 3;
524 else if (ramp_delay <= 5000)
525 reg = 2;
526 else
527 reg = 1;
528
529 ret = palmas_smps_write(pmic->palmas, rinfo->tstep_addr, reg);
530 if (ret < 0) {
531 dev_err(pmic->palmas->dev, "TSTEP write failed: %d\n", ret);
532 return ret;
533 }
534
535 pmic->ramp_delay[id] = palmas_smps_ramp_delay[reg];
536 return ret;
537 }
538
539 static const struct regulator_ops palmas_ops_smps = {
540 .is_enabled = regulator_is_enabled_regmap,
541 .enable = regulator_enable_regmap,
542 .disable = regulator_disable_regmap,
543 .set_mode = palmas_set_mode_smps,
544 .get_mode = palmas_get_mode_smps,
545 .get_voltage_sel = regulator_get_voltage_sel_regmap,
546 .set_voltage_sel = regulator_set_voltage_sel_regmap,
547 .list_voltage = regulator_list_voltage_linear_range,
548 .map_voltage = regulator_map_voltage_linear_range,
549 .set_voltage_time_sel = regulator_set_voltage_time_sel,
550 .set_ramp_delay = palmas_smps_set_ramp_delay,
551 };
552
553 static const struct regulator_ops palmas_ops_ext_control_smps = {
554 .set_mode = palmas_set_mode_smps,
555 .get_mode = palmas_get_mode_smps,
556 .get_voltage_sel = regulator_get_voltage_sel_regmap,
557 .set_voltage_sel = regulator_set_voltage_sel_regmap,
558 .list_voltage = regulator_list_voltage_linear_range,
559 .map_voltage = regulator_map_voltage_linear_range,
560 .set_voltage_time_sel = regulator_set_voltage_time_sel,
561 .set_ramp_delay = palmas_smps_set_ramp_delay,
562 };
563
564 static const struct regulator_ops palmas_ops_smps10 = {
565 .is_enabled = regulator_is_enabled_regmap,
566 .enable = regulator_enable_regmap,
567 .disable = regulator_disable_regmap,
568 .get_voltage_sel = regulator_get_voltage_sel_regmap,
569 .set_voltage_sel = regulator_set_voltage_sel_regmap,
570 .list_voltage = regulator_list_voltage_linear,
571 .map_voltage = regulator_map_voltage_linear,
572 .set_bypass = regulator_set_bypass_regmap,
573 .get_bypass = regulator_get_bypass_regmap,
574 };
575
576 static const struct regulator_ops tps65917_ops_smps = {
577 .is_enabled = regulator_is_enabled_regmap,
578 .enable = regulator_enable_regmap,
579 .disable = regulator_disable_regmap,
580 .set_mode = palmas_set_mode_smps,
581 .get_mode = palmas_get_mode_smps,
582 .get_voltage_sel = regulator_get_voltage_sel_regmap,
583 .set_voltage_sel = regulator_set_voltage_sel_regmap,
584 .list_voltage = regulator_list_voltage_linear_range,
585 .map_voltage = regulator_map_voltage_linear_range,
586 .set_voltage_time_sel = regulator_set_voltage_time_sel,
587 };
588
589 static const struct regulator_ops tps65917_ops_ext_control_smps = {
590 .set_mode = palmas_set_mode_smps,
591 .get_mode = palmas_get_mode_smps,
592 .get_voltage_sel = regulator_get_voltage_sel_regmap,
593 .set_voltage_sel = regulator_set_voltage_sel_regmap,
594 .list_voltage = regulator_list_voltage_linear_range,
595 .map_voltage = regulator_map_voltage_linear_range,
596 };
597
palmas_is_enabled_ldo(struct regulator_dev * dev)598 static int palmas_is_enabled_ldo(struct regulator_dev *dev)
599 {
600 int id = rdev_get_id(dev);
601 struct palmas_pmic *pmic = rdev_get_drvdata(dev);
602 struct palmas_pmic_driver_data *ddata = pmic->palmas->pmic_ddata;
603 struct palmas_regs_info *rinfo = &ddata->palmas_regs_info[id];
604 unsigned int reg;
605
606 palmas_ldo_read(pmic->palmas, rinfo->ctrl_addr, ®);
607
608 reg &= PALMAS_LDO1_CTRL_STATUS;
609
610 return !!(reg);
611 }
612
613 static const struct regulator_ops palmas_ops_ldo = {
614 .is_enabled = palmas_is_enabled_ldo,
615 .enable = regulator_enable_regmap,
616 .disable = regulator_disable_regmap,
617 .get_voltage_sel = regulator_get_voltage_sel_regmap,
618 .set_voltage_sel = regulator_set_voltage_sel_regmap,
619 .list_voltage = regulator_list_voltage_linear,
620 .map_voltage = regulator_map_voltage_linear,
621 };
622
623 static const struct regulator_ops palmas_ops_ldo9 = {
624 .is_enabled = palmas_is_enabled_ldo,
625 .enable = regulator_enable_regmap,
626 .disable = regulator_disable_regmap,
627 .get_voltage_sel = regulator_get_voltage_sel_regmap,
628 .set_voltage_sel = regulator_set_voltage_sel_regmap,
629 .list_voltage = regulator_list_voltage_linear,
630 .map_voltage = regulator_map_voltage_linear,
631 .set_bypass = regulator_set_bypass_regmap,
632 .get_bypass = regulator_get_bypass_regmap,
633 };
634
635 static const struct regulator_ops palmas_ops_ext_control_ldo = {
636 .get_voltage_sel = regulator_get_voltage_sel_regmap,
637 .set_voltage_sel = regulator_set_voltage_sel_regmap,
638 .list_voltage = regulator_list_voltage_linear,
639 .map_voltage = regulator_map_voltage_linear,
640 };
641
642 static const struct regulator_ops palmas_ops_extreg = {
643 .is_enabled = regulator_is_enabled_regmap,
644 .enable = regulator_enable_regmap,
645 .disable = regulator_disable_regmap,
646 };
647
648 static const struct regulator_ops palmas_ops_ext_control_extreg = {
649 };
650
651 static const struct regulator_ops tps65917_ops_ldo = {
652 .is_enabled = palmas_is_enabled_ldo,
653 .enable = regulator_enable_regmap,
654 .disable = regulator_disable_regmap,
655 .get_voltage_sel = regulator_get_voltage_sel_regmap,
656 .set_voltage_sel = regulator_set_voltage_sel_regmap,
657 .list_voltage = regulator_list_voltage_linear,
658 .map_voltage = regulator_map_voltage_linear,
659 .set_voltage_time_sel = regulator_set_voltage_time_sel,
660 };
661
662 static const struct regulator_ops tps65917_ops_ldo_1_2 = {
663 .is_enabled = palmas_is_enabled_ldo,
664 .enable = regulator_enable_regmap,
665 .disable = regulator_disable_regmap,
666 .get_voltage_sel = regulator_get_voltage_sel_regmap,
667 .set_voltage_sel = regulator_set_voltage_sel_regmap,
668 .list_voltage = regulator_list_voltage_linear,
669 .map_voltage = regulator_map_voltage_linear,
670 .set_voltage_time_sel = regulator_set_voltage_time_sel,
671 .set_bypass = regulator_set_bypass_regmap,
672 .get_bypass = regulator_get_bypass_regmap,
673 };
674
palmas_regulator_config_external(struct palmas * palmas,int id,struct palmas_reg_init * reg_init)675 static int palmas_regulator_config_external(struct palmas *palmas, int id,
676 struct palmas_reg_init *reg_init)
677 {
678 struct palmas_pmic_driver_data *ddata = palmas->pmic_ddata;
679 struct palmas_regs_info *rinfo = &ddata->palmas_regs_info[id];
680 int ret;
681
682 ret = palmas_ext_control_req_config(palmas, rinfo->sleep_id,
683 reg_init->roof_floor, true);
684 if (ret < 0)
685 dev_err(palmas->dev,
686 "Ext control config for regulator %d failed %d\n",
687 id, ret);
688 return ret;
689 }
690
691 /*
692 * setup the hardware based sleep configuration of the SMPS/LDO regulators
693 * from the platform data. This is different to the software based control
694 * supported by the regulator framework as it is controlled by toggling
695 * pins on the PMIC such as PREQ, SYSEN, ...
696 */
palmas_smps_init(struct palmas * palmas,int id,struct palmas_reg_init * reg_init)697 static int palmas_smps_init(struct palmas *palmas, int id,
698 struct palmas_reg_init *reg_init)
699 {
700 unsigned int reg;
701 int ret;
702 struct palmas_pmic_driver_data *ddata = palmas->pmic_ddata;
703 struct palmas_regs_info *rinfo = &ddata->palmas_regs_info[id];
704 unsigned int addr = rinfo->ctrl_addr;
705
706 ret = palmas_smps_read(palmas, addr, ®);
707 if (ret)
708 return ret;
709
710 switch (id) {
711 case PALMAS_REG_SMPS10_OUT1:
712 case PALMAS_REG_SMPS10_OUT2:
713 reg &= ~PALMAS_SMPS10_CTRL_MODE_SLEEP_MASK;
714 if (reg_init->mode_sleep)
715 reg |= reg_init->mode_sleep <<
716 PALMAS_SMPS10_CTRL_MODE_SLEEP_SHIFT;
717 break;
718 default:
719 if (reg_init->warm_reset)
720 reg |= PALMAS_SMPS12_CTRL_WR_S;
721 else
722 reg &= ~PALMAS_SMPS12_CTRL_WR_S;
723
724 if (reg_init->roof_floor)
725 reg |= PALMAS_SMPS12_CTRL_ROOF_FLOOR_EN;
726 else
727 reg &= ~PALMAS_SMPS12_CTRL_ROOF_FLOOR_EN;
728
729 reg &= ~PALMAS_SMPS12_CTRL_MODE_SLEEP_MASK;
730 if (reg_init->mode_sleep)
731 reg |= reg_init->mode_sleep <<
732 PALMAS_SMPS12_CTRL_MODE_SLEEP_SHIFT;
733 }
734
735 ret = palmas_smps_write(palmas, addr, reg);
736 if (ret)
737 return ret;
738
739 if (rinfo->vsel_addr && reg_init->vsel) {
740
741 reg = reg_init->vsel;
742
743 ret = palmas_smps_write(palmas, rinfo->vsel_addr, reg);
744 if (ret)
745 return ret;
746 }
747
748 if (reg_init->roof_floor && (id != PALMAS_REG_SMPS10_OUT1) &&
749 (id != PALMAS_REG_SMPS10_OUT2)) {
750 /* Enable externally controlled regulator */
751 ret = palmas_smps_read(palmas, addr, ®);
752 if (ret < 0)
753 return ret;
754
755 if (!(reg & PALMAS_SMPS12_CTRL_MODE_ACTIVE_MASK)) {
756 reg |= SMPS_CTRL_MODE_ON;
757 ret = palmas_smps_write(palmas, addr, reg);
758 if (ret < 0)
759 return ret;
760 }
761 return palmas_regulator_config_external(palmas, id, reg_init);
762 }
763 return 0;
764 }
765
palmas_ldo_init(struct palmas * palmas,int id,struct palmas_reg_init * reg_init)766 static int palmas_ldo_init(struct palmas *palmas, int id,
767 struct palmas_reg_init *reg_init)
768 {
769 unsigned int reg;
770 unsigned int addr;
771 int ret;
772 struct palmas_pmic_driver_data *ddata = palmas->pmic_ddata;
773 struct palmas_regs_info *rinfo = &ddata->palmas_regs_info[id];
774
775 addr = rinfo->ctrl_addr;
776
777 ret = palmas_ldo_read(palmas, addr, ®);
778 if (ret)
779 return ret;
780
781 if (reg_init->warm_reset)
782 reg |= PALMAS_LDO1_CTRL_WR_S;
783 else
784 reg &= ~PALMAS_LDO1_CTRL_WR_S;
785
786 if (reg_init->mode_sleep)
787 reg |= PALMAS_LDO1_CTRL_MODE_SLEEP;
788 else
789 reg &= ~PALMAS_LDO1_CTRL_MODE_SLEEP;
790
791 ret = palmas_ldo_write(palmas, addr, reg);
792 if (ret)
793 return ret;
794
795 if (reg_init->roof_floor) {
796 /* Enable externally controlled regulator */
797 ret = palmas_update_bits(palmas, PALMAS_LDO_BASE,
798 addr, PALMAS_LDO1_CTRL_MODE_ACTIVE,
799 PALMAS_LDO1_CTRL_MODE_ACTIVE);
800 if (ret < 0) {
801 dev_err(palmas->dev,
802 "LDO Register 0x%02x update failed %d\n",
803 addr, ret);
804 return ret;
805 }
806 return palmas_regulator_config_external(palmas, id, reg_init);
807 }
808 return 0;
809 }
810
palmas_extreg_init(struct palmas * palmas,int id,struct palmas_reg_init * reg_init)811 static int palmas_extreg_init(struct palmas *palmas, int id,
812 struct palmas_reg_init *reg_init)
813 {
814 unsigned int addr;
815 int ret;
816 unsigned int val = 0;
817 struct palmas_pmic_driver_data *ddata = palmas->pmic_ddata;
818 struct palmas_regs_info *rinfo = &ddata->palmas_regs_info[id];
819
820 addr = rinfo->ctrl_addr;
821
822 if (reg_init->mode_sleep)
823 val = PALMAS_REGEN1_CTRL_MODE_SLEEP;
824
825 ret = palmas_update_bits(palmas, PALMAS_RESOURCE_BASE,
826 addr, PALMAS_REGEN1_CTRL_MODE_SLEEP, val);
827 if (ret < 0) {
828 dev_err(palmas->dev, "Resource reg 0x%02x update failed %d\n",
829 addr, ret);
830 return ret;
831 }
832
833 if (reg_init->roof_floor) {
834 /* Enable externally controlled regulator */
835 ret = palmas_update_bits(palmas, PALMAS_RESOURCE_BASE,
836 addr, PALMAS_REGEN1_CTRL_MODE_ACTIVE,
837 PALMAS_REGEN1_CTRL_MODE_ACTIVE);
838 if (ret < 0) {
839 dev_err(palmas->dev,
840 "Resource Register 0x%02x update failed %d\n",
841 addr, ret);
842 return ret;
843 }
844 return palmas_regulator_config_external(palmas, id, reg_init);
845 }
846 return 0;
847 }
848
palmas_enable_ldo8_track(struct palmas * palmas)849 static void palmas_enable_ldo8_track(struct palmas *palmas)
850 {
851 unsigned int reg;
852 unsigned int addr;
853 int ret;
854 struct palmas_pmic_driver_data *ddata = palmas->pmic_ddata;
855 struct palmas_regs_info *rinfo;
856
857 rinfo = &ddata->palmas_regs_info[PALMAS_REG_LDO8];
858 addr = rinfo->ctrl_addr;
859
860 ret = palmas_ldo_read(palmas, addr, ®);
861 if (ret) {
862 dev_err(palmas->dev, "Error in reading ldo8 control reg\n");
863 return;
864 }
865
866 reg |= PALMAS_LDO8_CTRL_LDO_TRACKING_EN;
867 ret = palmas_ldo_write(palmas, addr, reg);
868 if (ret < 0) {
869 dev_err(palmas->dev, "Error in enabling tracking mode\n");
870 return;
871 }
872 /*
873 * When SMPS45 is set to off and LDO8 tracking is enabled, the LDO8
874 * output is defined by the LDO8_VOLTAGE.VSEL register divided by two,
875 * and can be set from 0.45 to 1.65 V.
876 */
877 addr = rinfo->vsel_addr;
878 ret = palmas_ldo_read(palmas, addr, ®);
879 if (ret) {
880 dev_err(palmas->dev, "Error in reading ldo8 voltage reg\n");
881 return;
882 }
883
884 reg = (reg << 1) & PALMAS_LDO8_VOLTAGE_VSEL_MASK;
885 ret = palmas_ldo_write(palmas, addr, reg);
886 if (ret < 0)
887 dev_err(palmas->dev, "Error in setting ldo8 voltage reg\n");
888
889 return;
890 }
891
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)892 static int palmas_ldo_registration(struct palmas_pmic *pmic,
893 struct palmas_pmic_driver_data *ddata,
894 struct palmas_pmic_platform_data *pdata,
895 const char *pdev_name,
896 struct regulator_config config)
897 {
898 int id, ret;
899 struct regulator_dev *rdev;
900 struct palmas_reg_init *reg_init;
901 struct palmas_regs_info *rinfo;
902 struct regulator_desc *desc;
903
904 for (id = ddata->ldo_begin; id < ddata->max_reg; id++) {
905 if (pdata && pdata->reg_init[id])
906 reg_init = pdata->reg_init[id];
907 else
908 reg_init = NULL;
909
910 rinfo = &ddata->palmas_regs_info[id];
911 /* Miss out regulators which are not available due
912 * to alternate functions.
913 */
914
915 /* Register the regulators */
916 desc = &pmic->desc[id];
917 desc->name = rinfo->name;
918 desc->id = id;
919 desc->type = REGULATOR_VOLTAGE;
920 desc->owner = THIS_MODULE;
921
922 if (id < PALMAS_REG_REGEN1) {
923 desc->n_voltages = PALMAS_LDO_NUM_VOLTAGES;
924 if (reg_init && reg_init->roof_floor)
925 desc->ops = &palmas_ops_ext_control_ldo;
926 else
927 desc->ops = &palmas_ops_ldo;
928 desc->min_uV = 900000;
929 desc->uV_step = 50000;
930 desc->linear_min_sel = 1;
931 desc->enable_time = 500;
932 desc->vsel_reg = PALMAS_BASE_TO_REG(PALMAS_LDO_BASE,
933 rinfo->vsel_addr);
934 desc->vsel_mask = PALMAS_LDO1_VOLTAGE_VSEL_MASK;
935 desc->enable_reg = PALMAS_BASE_TO_REG(PALMAS_LDO_BASE,
936 rinfo->ctrl_addr);
937 desc->enable_mask = PALMAS_LDO1_CTRL_MODE_ACTIVE;
938
939 /* Check if LDO8 is in tracking mode or not */
940 if (pdata && (id == PALMAS_REG_LDO8) &&
941 pdata->enable_ldo8_tracking) {
942 palmas_enable_ldo8_track(pmic->palmas);
943 desc->min_uV = 450000;
944 desc->uV_step = 25000;
945 }
946
947 /* LOD6 in vibrator mode will have enable time 2000us */
948 if (pdata && pdata->ldo6_vibrator &&
949 (id == PALMAS_REG_LDO6))
950 desc->enable_time = 2000;
951
952 if (id == PALMAS_REG_LDO9) {
953 desc->ops = &palmas_ops_ldo9;
954 desc->bypass_reg = desc->enable_reg;
955 desc->bypass_val_on =
956 PALMAS_LDO9_CTRL_LDO_BYPASS_EN;
957 desc->bypass_mask =
958 PALMAS_LDO9_CTRL_LDO_BYPASS_EN;
959 }
960 } else {
961 if (!ddata->has_regen3 && id == PALMAS_REG_REGEN3)
962 continue;
963
964 desc->n_voltages = 1;
965 if (reg_init && reg_init->roof_floor)
966 desc->ops = &palmas_ops_ext_control_extreg;
967 else
968 desc->ops = &palmas_ops_extreg;
969 desc->enable_reg =
970 PALMAS_BASE_TO_REG(PALMAS_RESOURCE_BASE,
971 rinfo->ctrl_addr);
972 desc->enable_mask = PALMAS_REGEN1_CTRL_MODE_ACTIVE;
973 }
974
975 if (pdata)
976 config.init_data = pdata->reg_data[id];
977 else
978 config.init_data = NULL;
979
980 desc->supply_name = rinfo->sname;
981 config.of_node = ddata->palmas_matches[id].of_node;
982
983 rdev = devm_regulator_register(pmic->dev, desc, &config);
984 if (IS_ERR(rdev)) {
985 dev_err(pmic->dev,
986 "failed to register %s regulator\n",
987 pdev_name);
988 return PTR_ERR(rdev);
989 }
990
991 /* Save regulator for cleanup */
992 pmic->rdev[id] = rdev;
993
994 /* Initialise sleep/init values from platform data */
995 if (pdata) {
996 reg_init = pdata->reg_init[id];
997 if (reg_init) {
998 if (id <= ddata->ldo_end)
999 ret = palmas_ldo_init(pmic->palmas, id,
1000 reg_init);
1001 else
1002 ret = palmas_extreg_init(pmic->palmas,
1003 id, reg_init);
1004 if (ret)
1005 return ret;
1006 }
1007 }
1008 }
1009
1010 return 0;
1011 }
1012
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)1013 static int tps65917_ldo_registration(struct palmas_pmic *pmic,
1014 struct palmas_pmic_driver_data *ddata,
1015 struct palmas_pmic_platform_data *pdata,
1016 const char *pdev_name,
1017 struct regulator_config config)
1018 {
1019 int id, ret;
1020 struct regulator_dev *rdev;
1021 struct palmas_reg_init *reg_init;
1022 struct palmas_regs_info *rinfo;
1023 struct regulator_desc *desc;
1024
1025 for (id = ddata->ldo_begin; id < ddata->max_reg; id++) {
1026 if (pdata && pdata->reg_init[id])
1027 reg_init = pdata->reg_init[id];
1028 else
1029 reg_init = NULL;
1030
1031 /* Miss out regulators which are not available due
1032 * to alternate functions.
1033 */
1034 rinfo = &ddata->palmas_regs_info[id];
1035
1036 /* Register the regulators */
1037 desc = &pmic->desc[id];
1038 desc->name = rinfo->name;
1039 desc->id = id;
1040 desc->type = REGULATOR_VOLTAGE;
1041 desc->owner = THIS_MODULE;
1042
1043 if (id < TPS65917_REG_REGEN1) {
1044 desc->n_voltages = PALMAS_LDO_NUM_VOLTAGES;
1045 if (reg_init && reg_init->roof_floor)
1046 desc->ops = &palmas_ops_ext_control_ldo;
1047 else
1048 desc->ops = &tps65917_ops_ldo;
1049 desc->min_uV = 900000;
1050 desc->uV_step = 50000;
1051 desc->linear_min_sel = 1;
1052 desc->enable_time = 500;
1053 desc->vsel_reg = PALMAS_BASE_TO_REG(PALMAS_LDO_BASE,
1054 rinfo->vsel_addr);
1055 desc->vsel_mask = PALMAS_LDO1_VOLTAGE_VSEL_MASK;
1056 desc->enable_reg = PALMAS_BASE_TO_REG(PALMAS_LDO_BASE,
1057 rinfo->ctrl_addr);
1058 desc->enable_mask = PALMAS_LDO1_CTRL_MODE_ACTIVE;
1059 /*
1060 * To be confirmed. Discussion on going with PMIC Team.
1061 * It is of the order of ~60mV/uS.
1062 */
1063 desc->ramp_delay = 2500;
1064 if (id == TPS65917_REG_LDO1 ||
1065 id == TPS65917_REG_LDO2) {
1066 desc->ops = &tps65917_ops_ldo_1_2;
1067 desc->bypass_reg = desc->enable_reg;
1068 desc->bypass_val_on =
1069 TPS65917_LDO1_CTRL_BYPASS_EN;
1070 desc->bypass_mask =
1071 TPS65917_LDO1_CTRL_BYPASS_EN;
1072 }
1073 } else {
1074 desc->n_voltages = 1;
1075 if (reg_init && reg_init->roof_floor)
1076 desc->ops = &palmas_ops_ext_control_extreg;
1077 else
1078 desc->ops = &palmas_ops_extreg;
1079 desc->enable_reg =
1080 PALMAS_BASE_TO_REG(PALMAS_RESOURCE_BASE,
1081 rinfo->ctrl_addr);
1082 desc->enable_mask = PALMAS_REGEN1_CTRL_MODE_ACTIVE;
1083 }
1084
1085 if (pdata)
1086 config.init_data = pdata->reg_data[id];
1087 else
1088 config.init_data = NULL;
1089
1090 desc->supply_name = rinfo->sname;
1091 config.of_node = ddata->palmas_matches[id].of_node;
1092
1093 rdev = devm_regulator_register(pmic->dev, desc, &config);
1094 if (IS_ERR(rdev)) {
1095 dev_err(pmic->dev,
1096 "failed to register %s regulator\n",
1097 pdev_name);
1098 return PTR_ERR(rdev);
1099 }
1100
1101 /* Save regulator for cleanup */
1102 pmic->rdev[id] = rdev;
1103
1104 /* Initialise sleep/init values from platform data */
1105 if (pdata) {
1106 reg_init = pdata->reg_init[id];
1107 if (reg_init) {
1108 if (id < TPS65917_REG_REGEN1)
1109 ret = palmas_ldo_init(pmic->palmas,
1110 id, reg_init);
1111 else
1112 ret = palmas_extreg_init(pmic->palmas,
1113 id, reg_init);
1114 if (ret)
1115 return ret;
1116 }
1117 }
1118 }
1119
1120 return 0;
1121 }
1122
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)1123 static int palmas_smps_registration(struct palmas_pmic *pmic,
1124 struct palmas_pmic_driver_data *ddata,
1125 struct palmas_pmic_platform_data *pdata,
1126 const char *pdev_name,
1127 struct regulator_config config)
1128 {
1129 int id, ret;
1130 unsigned int addr, reg;
1131 struct regulator_dev *rdev;
1132 struct palmas_reg_init *reg_init;
1133 struct palmas_regs_info *rinfo;
1134 struct regulator_desc *desc;
1135
1136 for (id = ddata->smps_start; id <= ddata->smps_end; id++) {
1137 bool ramp_delay_support = false;
1138
1139 /*
1140 * Miss out regulators which are not available due
1141 * to slaving configurations.
1142 */
1143 switch (id) {
1144 case PALMAS_REG_SMPS12:
1145 case PALMAS_REG_SMPS3:
1146 if (pmic->smps123)
1147 continue;
1148 if (id == PALMAS_REG_SMPS12)
1149 ramp_delay_support = true;
1150 break;
1151 case PALMAS_REG_SMPS123:
1152 if (!pmic->smps123)
1153 continue;
1154 ramp_delay_support = true;
1155 break;
1156 case PALMAS_REG_SMPS45:
1157 case PALMAS_REG_SMPS7:
1158 if (pmic->smps457)
1159 continue;
1160 if (id == PALMAS_REG_SMPS45)
1161 ramp_delay_support = true;
1162 break;
1163 case PALMAS_REG_SMPS457:
1164 if (!pmic->smps457)
1165 continue;
1166 ramp_delay_support = true;
1167 break;
1168 case PALMAS_REG_SMPS10_OUT1:
1169 case PALMAS_REG_SMPS10_OUT2:
1170 if (!PALMAS_PMIC_HAS(pmic->palmas, SMPS10_BOOST))
1171 continue;
1172 }
1173 rinfo = &ddata->palmas_regs_info[id];
1174 desc = &pmic->desc[id];
1175
1176 if ((id == PALMAS_REG_SMPS6) || (id == PALMAS_REG_SMPS8))
1177 ramp_delay_support = true;
1178
1179 if (ramp_delay_support) {
1180 addr = rinfo->tstep_addr;
1181 ret = palmas_smps_read(pmic->palmas, addr, ®);
1182 if (ret < 0) {
1183 dev_err(pmic->dev,
1184 "reading TSTEP reg failed: %d\n", ret);
1185 return ret;
1186 }
1187 desc->ramp_delay = palmas_smps_ramp_delay[reg & 0x3];
1188 pmic->ramp_delay[id] = desc->ramp_delay;
1189 }
1190
1191 /* Initialise sleep/init values from platform data */
1192 if (pdata && pdata->reg_init[id]) {
1193 reg_init = pdata->reg_init[id];
1194 ret = palmas_smps_init(pmic->palmas, id, reg_init);
1195 if (ret)
1196 return ret;
1197 } else {
1198 reg_init = NULL;
1199 }
1200
1201 /* Register the regulators */
1202 desc->name = rinfo->name;
1203 desc->id = id;
1204
1205 switch (id) {
1206 case PALMAS_REG_SMPS10_OUT1:
1207 case PALMAS_REG_SMPS10_OUT2:
1208 desc->n_voltages = PALMAS_SMPS10_NUM_VOLTAGES;
1209 desc->ops = &palmas_ops_smps10;
1210 desc->vsel_reg = PALMAS_BASE_TO_REG(PALMAS_SMPS_BASE,
1211 PALMAS_SMPS10_CTRL);
1212 desc->vsel_mask = SMPS10_VSEL;
1213 desc->enable_reg = PALMAS_BASE_TO_REG(PALMAS_SMPS_BASE,
1214 PALMAS_SMPS10_CTRL);
1215 if (id == PALMAS_REG_SMPS10_OUT1)
1216 desc->enable_mask = SMPS10_SWITCH_EN;
1217 else
1218 desc->enable_mask = SMPS10_BOOST_EN;
1219 desc->bypass_reg = PALMAS_BASE_TO_REG(PALMAS_SMPS_BASE,
1220 PALMAS_SMPS10_CTRL);
1221 desc->bypass_val_on = SMPS10_BYPASS_EN;
1222 desc->bypass_mask = SMPS10_BYPASS_EN;
1223 desc->min_uV = 3750000;
1224 desc->uV_step = 1250000;
1225 break;
1226 default:
1227 /*
1228 * Read and store the RANGE bit for later use
1229 * This must be done before regulator is probed,
1230 * otherwise we error in probe with unsupportable
1231 * ranges. Read the current smps mode for later use.
1232 */
1233 addr = rinfo->vsel_addr;
1234 desc->n_linear_ranges = 3;
1235
1236 ret = palmas_smps_read(pmic->palmas, addr, ®);
1237 if (ret)
1238 return ret;
1239 if (reg & PALMAS_SMPS12_VOLTAGE_RANGE)
1240 pmic->range[id] = 1;
1241 if (pmic->range[id])
1242 desc->linear_ranges = smps_high_ranges;
1243 else
1244 desc->linear_ranges = smps_low_ranges;
1245
1246 if (reg_init && reg_init->roof_floor)
1247 desc->ops = &palmas_ops_ext_control_smps;
1248 else
1249 desc->ops = &palmas_ops_smps;
1250 desc->n_voltages = PALMAS_SMPS_NUM_VOLTAGES;
1251 desc->vsel_reg = PALMAS_BASE_TO_REG(PALMAS_SMPS_BASE,
1252 rinfo->vsel_addr);
1253 desc->vsel_mask = PALMAS_SMPS12_VOLTAGE_VSEL_MASK;
1254
1255 /* Read the smps mode for later use. */
1256 addr = rinfo->ctrl_addr;
1257 ret = palmas_smps_read(pmic->palmas, addr, ®);
1258 if (ret)
1259 return ret;
1260 pmic->current_reg_mode[id] = reg &
1261 PALMAS_SMPS12_CTRL_MODE_ACTIVE_MASK;
1262
1263 desc->enable_reg = PALMAS_BASE_TO_REG(PALMAS_SMPS_BASE,
1264 rinfo->ctrl_addr);
1265 desc->enable_mask = PALMAS_SMPS12_CTRL_MODE_ACTIVE_MASK;
1266 /* set_mode overrides this value */
1267 desc->enable_val = SMPS_CTRL_MODE_ON;
1268 }
1269
1270 desc->type = REGULATOR_VOLTAGE;
1271 desc->owner = THIS_MODULE;
1272
1273 if (pdata)
1274 config.init_data = pdata->reg_data[id];
1275 else
1276 config.init_data = NULL;
1277
1278 desc->supply_name = rinfo->sname;
1279 config.of_node = ddata->palmas_matches[id].of_node;
1280
1281 rdev = devm_regulator_register(pmic->dev, desc, &config);
1282 if (IS_ERR(rdev)) {
1283 dev_err(pmic->dev,
1284 "failed to register %s regulator\n",
1285 pdev_name);
1286 return PTR_ERR(rdev);
1287 }
1288
1289 /* Save regulator for cleanup */
1290 pmic->rdev[id] = rdev;
1291 }
1292
1293 return 0;
1294 }
1295
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)1296 static int tps65917_smps_registration(struct palmas_pmic *pmic,
1297 struct palmas_pmic_driver_data *ddata,
1298 struct palmas_pmic_platform_data *pdata,
1299 const char *pdev_name,
1300 struct regulator_config config)
1301 {
1302 int id, ret;
1303 unsigned int addr, reg;
1304 struct regulator_dev *rdev;
1305 struct palmas_reg_init *reg_init;
1306 struct palmas_regs_info *rinfo;
1307 struct regulator_desc *desc;
1308
1309 for (id = ddata->smps_start; id <= ddata->smps_end; id++) {
1310 /*
1311 * Miss out regulators which are not available due
1312 * to slaving configurations.
1313 */
1314 desc = &pmic->desc[id];
1315 desc->n_linear_ranges = 3;
1316 if ((id == TPS65917_REG_SMPS2 || id == TPS65917_REG_SMPS1) &&
1317 pmic->smps12)
1318 continue;
1319
1320 /* Initialise sleep/init values from platform data */
1321 if (pdata && pdata->reg_init[id]) {
1322 reg_init = pdata->reg_init[id];
1323 ret = palmas_smps_init(pmic->palmas, id, reg_init);
1324 if (ret)
1325 return ret;
1326 } else {
1327 reg_init = NULL;
1328 }
1329 rinfo = &ddata->palmas_regs_info[id];
1330
1331 /* Register the regulators */
1332 desc->name = rinfo->name;
1333 desc->id = id;
1334
1335 /*
1336 * Read and store the RANGE bit for later use
1337 * This must be done before regulator is probed,
1338 * otherwise we error in probe with unsupportable
1339 * ranges. Read the current smps mode for later use.
1340 */
1341 addr = rinfo->vsel_addr;
1342
1343 ret = palmas_smps_read(pmic->palmas, addr, ®);
1344 if (ret)
1345 return ret;
1346 if (reg & TPS65917_SMPS1_VOLTAGE_RANGE)
1347 pmic->range[id] = 1;
1348
1349 if (pmic->range[id])
1350 desc->linear_ranges = smps_high_ranges;
1351 else
1352 desc->linear_ranges = smps_low_ranges;
1353
1354 if (reg_init && reg_init->roof_floor)
1355 desc->ops = &tps65917_ops_ext_control_smps;
1356 else
1357 desc->ops = &tps65917_ops_smps;
1358 desc->n_voltages = PALMAS_SMPS_NUM_VOLTAGES;
1359 desc->vsel_reg = PALMAS_BASE_TO_REG(PALMAS_SMPS_BASE,
1360 rinfo->vsel_addr);
1361 desc->vsel_mask = PALMAS_SMPS12_VOLTAGE_VSEL_MASK;
1362 desc->ramp_delay = 2500;
1363
1364 /* Read the smps mode for later use. */
1365 addr = rinfo->ctrl_addr;
1366 ret = palmas_smps_read(pmic->palmas, addr, ®);
1367 if (ret)
1368 return ret;
1369 pmic->current_reg_mode[id] = reg &
1370 PALMAS_SMPS12_CTRL_MODE_ACTIVE_MASK;
1371 desc->enable_reg = PALMAS_BASE_TO_REG(PALMAS_SMPS_BASE,
1372 rinfo->ctrl_addr);
1373 desc->enable_mask = PALMAS_SMPS12_CTRL_MODE_ACTIVE_MASK;
1374 /* set_mode overrides this value */
1375 desc->enable_val = SMPS_CTRL_MODE_ON;
1376
1377 desc->type = REGULATOR_VOLTAGE;
1378 desc->owner = THIS_MODULE;
1379
1380 if (pdata)
1381 config.init_data = pdata->reg_data[id];
1382 else
1383 config.init_data = NULL;
1384
1385 desc->supply_name = rinfo->sname;
1386 config.of_node = ddata->palmas_matches[id].of_node;
1387
1388 rdev = devm_regulator_register(pmic->dev, desc, &config);
1389 if (IS_ERR(rdev)) {
1390 dev_err(pmic->dev,
1391 "failed to register %s regulator\n",
1392 pdev_name);
1393 return PTR_ERR(rdev);
1394 }
1395
1396 /* Save regulator for cleanup */
1397 pmic->rdev[id] = rdev;
1398 }
1399
1400 return 0;
1401 }
1402
1403 static struct of_regulator_match palmas_matches[] = {
1404 { .name = "smps12", },
1405 { .name = "smps123", },
1406 { .name = "smps3", },
1407 { .name = "smps45", },
1408 { .name = "smps457", },
1409 { .name = "smps6", },
1410 { .name = "smps7", },
1411 { .name = "smps8", },
1412 { .name = "smps9", },
1413 { .name = "smps10_out2", },
1414 { .name = "smps10_out1", },
1415 { .name = "ldo1", },
1416 { .name = "ldo2", },
1417 { .name = "ldo3", },
1418 { .name = "ldo4", },
1419 { .name = "ldo5", },
1420 { .name = "ldo6", },
1421 { .name = "ldo7", },
1422 { .name = "ldo8", },
1423 { .name = "ldo9", },
1424 { .name = "ldoln", },
1425 { .name = "ldousb", },
1426 { .name = "regen1", },
1427 { .name = "regen2", },
1428 { .name = "regen3", },
1429 { .name = "sysen1", },
1430 { .name = "sysen2", },
1431 };
1432
1433 static struct of_regulator_match tps65917_matches[] = {
1434 { .name = "smps1", },
1435 { .name = "smps2", },
1436 { .name = "smps3", },
1437 { .name = "smps4", },
1438 { .name = "smps5", },
1439 { .name = "smps12",},
1440 { .name = "ldo1", },
1441 { .name = "ldo2", },
1442 { .name = "ldo3", },
1443 { .name = "ldo4", },
1444 { .name = "ldo5", },
1445 { .name = "regen1", },
1446 { .name = "regen2", },
1447 { .name = "regen3", },
1448 { .name = "sysen1", },
1449 { .name = "sysen2", },
1450 };
1451
1452 static struct palmas_pmic_driver_data palmas_ddata = {
1453 .smps_start = PALMAS_REG_SMPS12,
1454 .smps_end = PALMAS_REG_SMPS10_OUT1,
1455 .ldo_begin = PALMAS_REG_LDO1,
1456 .ldo_end = PALMAS_REG_LDOUSB,
1457 .max_reg = PALMAS_NUM_REGS,
1458 .has_regen3 = true,
1459 .palmas_regs_info = palmas_generic_regs_info,
1460 .palmas_matches = palmas_matches,
1461 .sleep_req_info = palma_sleep_req_info,
1462 .smps_register = palmas_smps_registration,
1463 .ldo_register = palmas_ldo_registration,
1464 };
1465
1466 static struct palmas_pmic_driver_data tps65917_ddata = {
1467 .smps_start = TPS65917_REG_SMPS1,
1468 .smps_end = TPS65917_REG_SMPS12,
1469 .ldo_begin = TPS65917_REG_LDO1,
1470 .ldo_end = TPS65917_REG_LDO5,
1471 .max_reg = TPS65917_NUM_REGS,
1472 .has_regen3 = true,
1473 .palmas_regs_info = tps65917_regs_info,
1474 .palmas_matches = tps65917_matches,
1475 .sleep_req_info = tps65917_sleep_req_info,
1476 .smps_register = tps65917_smps_registration,
1477 .ldo_register = tps65917_ldo_registration,
1478 };
1479
palmas_dt_to_pdata(struct device * dev,struct device_node * node,struct palmas_pmic_platform_data * pdata,struct palmas_pmic_driver_data * ddata)1480 static int palmas_dt_to_pdata(struct device *dev,
1481 struct device_node *node,
1482 struct palmas_pmic_platform_data *pdata,
1483 struct palmas_pmic_driver_data *ddata)
1484 {
1485 struct device_node *regulators;
1486 u32 prop;
1487 int idx, ret;
1488
1489 regulators = of_get_child_by_name(node, "regulators");
1490 if (!regulators) {
1491 dev_info(dev, "regulator node not found\n");
1492 return 0;
1493 }
1494
1495 ret = of_regulator_match(dev, regulators, ddata->palmas_matches,
1496 ddata->max_reg);
1497 of_node_put(regulators);
1498 if (ret < 0) {
1499 dev_err(dev, "Error parsing regulator init data: %d\n", ret);
1500 return 0;
1501 }
1502
1503 for (idx = 0; idx < ddata->max_reg; idx++) {
1504 struct of_regulator_match *match;
1505 struct palmas_reg_init *rinit;
1506 struct device_node *np;
1507
1508 match = &ddata->palmas_matches[idx];
1509 np = match->of_node;
1510
1511 if (!match->init_data || !np)
1512 continue;
1513
1514 rinit = devm_kzalloc(dev, sizeof(*rinit), GFP_KERNEL);
1515 if (!rinit)
1516 return -ENOMEM;
1517
1518 pdata->reg_data[idx] = match->init_data;
1519 pdata->reg_init[idx] = rinit;
1520
1521 rinit->warm_reset = of_property_read_bool(np, "ti,warm-reset");
1522 ret = of_property_read_u32(np, "ti,roof-floor", &prop);
1523 /* EINVAL: Property not found */
1524 if (ret != -EINVAL) {
1525 int econtrol;
1526
1527 /* use default value, when no value is specified */
1528 econtrol = PALMAS_EXT_CONTROL_NSLEEP;
1529 if (!ret) {
1530 switch (prop) {
1531 case 1:
1532 econtrol = PALMAS_EXT_CONTROL_ENABLE1;
1533 break;
1534 case 2:
1535 econtrol = PALMAS_EXT_CONTROL_ENABLE2;
1536 break;
1537 case 3:
1538 econtrol = PALMAS_EXT_CONTROL_NSLEEP;
1539 break;
1540 default:
1541 WARN_ON(1);
1542 dev_warn(dev,
1543 "%s: Invalid roof-floor option: %u\n",
1544 match->name, prop);
1545 break;
1546 }
1547 }
1548 rinit->roof_floor = econtrol;
1549 }
1550
1551 ret = of_property_read_u32(np, "ti,mode-sleep", &prop);
1552 if (!ret)
1553 rinit->mode_sleep = prop;
1554
1555 ret = of_property_read_bool(np, "ti,smps-range");
1556 if (ret)
1557 rinit->vsel = PALMAS_SMPS12_VOLTAGE_RANGE;
1558
1559 if (idx == PALMAS_REG_LDO8)
1560 pdata->enable_ldo8_tracking = of_property_read_bool(
1561 np, "ti,enable-ldo8-tracking");
1562 }
1563
1564 pdata->ldo6_vibrator = of_property_read_bool(node, "ti,ldo6-vibrator");
1565
1566 return 0;
1567 }
1568
1569 static const struct of_device_id of_palmas_match_tbl[] = {
1570 {
1571 .compatible = "ti,palmas-pmic",
1572 .data = &palmas_ddata,
1573 },
1574 {
1575 .compatible = "ti,twl6035-pmic",
1576 .data = &palmas_ddata,
1577 },
1578 {
1579 .compatible = "ti,twl6036-pmic",
1580 .data = &palmas_ddata,
1581 },
1582 {
1583 .compatible = "ti,twl6037-pmic",
1584 .data = &palmas_ddata,
1585 },
1586 {
1587 .compatible = "ti,tps65913-pmic",
1588 .data = &palmas_ddata,
1589 },
1590 {
1591 .compatible = "ti,tps65914-pmic",
1592 .data = &palmas_ddata,
1593 },
1594 {
1595 .compatible = "ti,tps80036-pmic",
1596 .data = &palmas_ddata,
1597 },
1598 {
1599 .compatible = "ti,tps659038-pmic",
1600 .data = &palmas_ddata,
1601 },
1602 {
1603 .compatible = "ti,tps65917-pmic",
1604 .data = &tps65917_ddata,
1605 },
1606 { /* end */ }
1607 };
1608
palmas_regulators_probe(struct platform_device * pdev)1609 static int palmas_regulators_probe(struct platform_device *pdev)
1610 {
1611 struct palmas *palmas = dev_get_drvdata(pdev->dev.parent);
1612 struct palmas_pmic_platform_data *pdata = dev_get_platdata(&pdev->dev);
1613 struct device_node *node = pdev->dev.of_node;
1614 struct palmas_pmic_driver_data *driver_data;
1615 struct regulator_config config = { };
1616 struct palmas_pmic *pmic;
1617 const char *pdev_name;
1618 const struct of_device_id *match;
1619 int ret = 0;
1620 unsigned int reg;
1621
1622 match = of_match_device(of_match_ptr(of_palmas_match_tbl), &pdev->dev);
1623
1624 if (!match)
1625 return -ENODATA;
1626
1627 driver_data = (struct palmas_pmic_driver_data *)match->data;
1628 pdata = devm_kzalloc(&pdev->dev, sizeof(*pdata), GFP_KERNEL);
1629 if (!pdata)
1630 return -ENOMEM;
1631
1632 pmic = devm_kzalloc(&pdev->dev, sizeof(*pmic), GFP_KERNEL);
1633 if (!pmic)
1634 return -ENOMEM;
1635
1636 if (of_device_is_compatible(node, "ti,tps659038-pmic")) {
1637 palmas_generic_regs_info[PALMAS_REG_REGEN2].ctrl_addr =
1638 TPS659038_REGEN2_CTRL;
1639 palmas_ddata.has_regen3 = false;
1640 }
1641
1642 pmic->dev = &pdev->dev;
1643 pmic->palmas = palmas;
1644 palmas->pmic = pmic;
1645 platform_set_drvdata(pdev, pmic);
1646 pmic->palmas->pmic_ddata = driver_data;
1647
1648 ret = palmas_dt_to_pdata(&pdev->dev, node, pdata, driver_data);
1649 if (ret)
1650 return ret;
1651
1652 ret = palmas_smps_read(palmas, PALMAS_SMPS_CTRL, ®);
1653 if (ret)
1654 return ret;
1655
1656 if (reg & PALMAS_SMPS_CTRL_SMPS12_SMPS123_EN) {
1657 pmic->smps123 = 1;
1658 pmic->smps12 = 1;
1659 }
1660
1661 if (reg & PALMAS_SMPS_CTRL_SMPS45_SMPS457_EN)
1662 pmic->smps457 = 1;
1663
1664 config.regmap = palmas->regmap[REGULATOR_SLAVE];
1665 config.dev = &pdev->dev;
1666 config.driver_data = pmic;
1667 pdev_name = pdev->name;
1668
1669 ret = driver_data->smps_register(pmic, driver_data, pdata, pdev_name,
1670 config);
1671 if (ret)
1672 return ret;
1673
1674 ret = driver_data->ldo_register(pmic, driver_data, pdata, pdev_name,
1675 config);
1676
1677 return ret;
1678 }
1679
1680 static struct platform_driver palmas_driver = {
1681 .driver = {
1682 .name = "palmas-pmic",
1683 .of_match_table = of_palmas_match_tbl,
1684 },
1685 .probe = palmas_regulators_probe,
1686 };
1687
palmas_init(void)1688 static int __init palmas_init(void)
1689 {
1690 return platform_driver_register(&palmas_driver);
1691 }
1692 subsys_initcall(palmas_init);
1693
palmas_exit(void)1694 static void __exit palmas_exit(void)
1695 {
1696 platform_driver_unregister(&palmas_driver);
1697 }
1698 module_exit(palmas_exit);
1699
1700 MODULE_AUTHOR("Graeme Gregory <gg@slimlogic.co.uk>");
1701 MODULE_DESCRIPTION("Palmas voltage regulator driver");
1702 MODULE_LICENSE("GPL");
1703 MODULE_ALIAS("platform:palmas-pmic");
1704 MODULE_DEVICE_TABLE(of, of_palmas_match_tbl);
1705
