Version:  2.0.40 2.2.26 2.4.37 3.1 3.2 3.3 3.4 3.5 3.6 3.7 3.8 3.9 3.10 3.11 3.12 3.13 3.14 3.15 3.16 3.17

Linux/drivers/regulator/palmas-regulator.c

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

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