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regulator: twl: Set enable enable_time in regulator_desc
[deliverable/linux.git] / drivers / regulator / twl-regulator.c
1 /*
2 * twl-regulator.c -- support regulators in twl4030/twl6030 family chips
3 *
4 * Copyright (C) 2008 David Brownell
5 *
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License as published by
8 * the Free Software Foundation; either version 2 of the License, or
9 * (at your option) any later version.
10 */
11
12 #include <linux/module.h>
13 #include <linux/init.h>
14 #include <linux/err.h>
15 #include <linux/platform_device.h>
16 #include <linux/of.h>
17 #include <linux/of_device.h>
18 #include <linux/regulator/driver.h>
19 #include <linux/regulator/machine.h>
20 #include <linux/regulator/of_regulator.h>
21 #include <linux/i2c/twl.h>
22
23
24 /*
25 * The TWL4030/TW5030/TPS659x0/TWL6030 family chips include power management, a
26 * USB OTG transceiver, an RTC, ADC, PWM, and lots more. Some versions
27 * include an audio codec, battery charger, and more voltage regulators.
28 * These chips are often used in OMAP-based systems.
29 *
30 * This driver implements software-based resource control for various
31 * voltage regulators. This is usually augmented with state machine
32 * based control.
33 */
34
35 struct twlreg_info {
36 /* start of regulator's PM_RECEIVER control register bank */
37 u8 base;
38
39 /* twl resource ID, for resource control state machine */
40 u8 id;
41
42 /* voltage in mV = table[VSEL]; table_len must be a power-of-two */
43 u8 table_len;
44 const u16 *table;
45
46 /* State REMAP default configuration */
47 u8 remap;
48
49 /* chip constraints on regulator behavior */
50 u16 min_mV;
51 u16 max_mV;
52
53 u8 flags;
54
55 /* used by regulator core */
56 struct regulator_desc desc;
57
58 /* chip specific features */
59 unsigned long features;
60
61 /*
62 * optional override functions for voltage set/get
63 * these are currently only used for SMPS regulators
64 */
65 int (*get_voltage)(void *data);
66 int (*set_voltage)(void *data, int target_uV);
67
68 /* data passed from board for external get/set voltage */
69 void *data;
70 };
71
72
73 /* LDO control registers ... offset is from the base of its register bank.
74 * The first three registers of all power resource banks help hardware to
75 * manage the various resource groups.
76 */
77 /* Common offset in TWL4030/6030 */
78 #define VREG_GRP 0
79 /* TWL4030 register offsets */
80 #define VREG_TYPE 1
81 #define VREG_REMAP 2
82 #define VREG_DEDICATED 3 /* LDO control */
83 #define VREG_VOLTAGE_SMPS_4030 9
84 /* TWL6030 register offsets */
85 #define VREG_TRANS 1
86 #define VREG_STATE 2
87 #define VREG_VOLTAGE 3
88 #define VREG_VOLTAGE_SMPS 4
89 /* TWL6030 Misc register offsets */
90 #define VREG_BC_ALL 1
91 #define VREG_BC_REF 2
92 #define VREG_BC_PROC 3
93 #define VREG_BC_CLK_RST 4
94
95 /* TWL6030 LDO register values for CFG_STATE */
96 #define TWL6030_CFG_STATE_OFF 0x00
97 #define TWL6030_CFG_STATE_ON 0x01
98 #define TWL6030_CFG_STATE_OFF2 0x02
99 #define TWL6030_CFG_STATE_SLEEP 0x03
100 #define TWL6030_CFG_STATE_GRP_SHIFT 5
101 #define TWL6030_CFG_STATE_APP_SHIFT 2
102 #define TWL6030_CFG_STATE_APP_MASK (0x03 << TWL6030_CFG_STATE_APP_SHIFT)
103 #define TWL6030_CFG_STATE_APP(v) (((v) & TWL6030_CFG_STATE_APP_MASK) >>\
104 TWL6030_CFG_STATE_APP_SHIFT)
105
106 /* Flags for SMPS Voltage reading */
107 #define SMPS_OFFSET_EN BIT(0)
108 #define SMPS_EXTENDED_EN BIT(1)
109
110 /* twl6025 SMPS EPROM values */
111 #define TWL6030_SMPS_OFFSET 0xB0
112 #define TWL6030_SMPS_MULT 0xB3
113 #define SMPS_MULTOFFSET_SMPS4 BIT(0)
114 #define SMPS_MULTOFFSET_VIO BIT(1)
115 #define SMPS_MULTOFFSET_SMPS3 BIT(6)
116
117 static inline int
118 twlreg_read(struct twlreg_info *info, unsigned slave_subgp, unsigned offset)
119 {
120 u8 value;
121 int status;
122
123 status = twl_i2c_read_u8(slave_subgp,
124 &value, info->base + offset);
125 return (status < 0) ? status : value;
126 }
127
128 static inline int
129 twlreg_write(struct twlreg_info *info, unsigned slave_subgp, unsigned offset,
130 u8 value)
131 {
132 return twl_i2c_write_u8(slave_subgp,
133 value, info->base + offset);
134 }
135
136 /*----------------------------------------------------------------------*/
137
138 /* generic power resource operations, which work on all regulators */
139
140 static int twlreg_grp(struct regulator_dev *rdev)
141 {
142 return twlreg_read(rdev_get_drvdata(rdev), TWL_MODULE_PM_RECEIVER,
143 VREG_GRP);
144 }
145
146 /*
147 * Enable/disable regulators by joining/leaving the P1 (processor) group.
148 * We assume nobody else is updating the DEV_GRP registers.
149 */
150 /* definition for 4030 family */
151 #define P3_GRP_4030 BIT(7) /* "peripherals" */
152 #define P2_GRP_4030 BIT(6) /* secondary processor, modem, etc */
153 #define P1_GRP_4030 BIT(5) /* CPU/Linux */
154 /* definition for 6030 family */
155 #define P3_GRP_6030 BIT(2) /* secondary processor, modem, etc */
156 #define P2_GRP_6030 BIT(1) /* "peripherals" */
157 #define P1_GRP_6030 BIT(0) /* CPU/Linux */
158
159 static int twl4030reg_is_enabled(struct regulator_dev *rdev)
160 {
161 int state = twlreg_grp(rdev);
162
163 if (state < 0)
164 return state;
165
166 return state & P1_GRP_4030;
167 }
168
169 static int twl6030reg_is_enabled(struct regulator_dev *rdev)
170 {
171 struct twlreg_info *info = rdev_get_drvdata(rdev);
172 int grp = 0, val;
173
174 if (!(twl_class_is_6030() && (info->features & TWL6025_SUBCLASS))) {
175 grp = twlreg_grp(rdev);
176 if (grp < 0)
177 return grp;
178 grp &= P1_GRP_6030;
179 } else {
180 grp = 1;
181 }
182
183 val = twlreg_read(info, TWL_MODULE_PM_RECEIVER, VREG_STATE);
184 val = TWL6030_CFG_STATE_APP(val);
185
186 return grp && (val == TWL6030_CFG_STATE_ON);
187 }
188
189 static int twl4030reg_enable(struct regulator_dev *rdev)
190 {
191 struct twlreg_info *info = rdev_get_drvdata(rdev);
192 int grp;
193 int ret;
194
195 grp = twlreg_grp(rdev);
196 if (grp < 0)
197 return grp;
198
199 grp |= P1_GRP_4030;
200
201 ret = twlreg_write(info, TWL_MODULE_PM_RECEIVER, VREG_GRP, grp);
202
203 return ret;
204 }
205
206 static int twl6030reg_enable(struct regulator_dev *rdev)
207 {
208 struct twlreg_info *info = rdev_get_drvdata(rdev);
209 int grp = 0;
210 int ret;
211
212 if (!(twl_class_is_6030() && (info->features & TWL6025_SUBCLASS)))
213 grp = twlreg_grp(rdev);
214 if (grp < 0)
215 return grp;
216
217 ret = twlreg_write(info, TWL_MODULE_PM_RECEIVER, VREG_STATE,
218 grp << TWL6030_CFG_STATE_GRP_SHIFT |
219 TWL6030_CFG_STATE_ON);
220 return ret;
221 }
222
223 static int twl4030reg_disable(struct regulator_dev *rdev)
224 {
225 struct twlreg_info *info = rdev_get_drvdata(rdev);
226 int grp;
227 int ret;
228
229 grp = twlreg_grp(rdev);
230 if (grp < 0)
231 return grp;
232
233 grp &= ~(P1_GRP_4030 | P2_GRP_4030 | P3_GRP_4030);
234
235 ret = twlreg_write(info, TWL_MODULE_PM_RECEIVER, VREG_GRP, grp);
236
237 return ret;
238 }
239
240 static int twl6030reg_disable(struct regulator_dev *rdev)
241 {
242 struct twlreg_info *info = rdev_get_drvdata(rdev);
243 int grp = 0;
244 int ret;
245
246 if (!(twl_class_is_6030() && (info->features & TWL6025_SUBCLASS)))
247 grp = P1_GRP_6030 | P2_GRP_6030 | P3_GRP_6030;
248
249 /* For 6030, set the off state for all grps enabled */
250 ret = twlreg_write(info, TWL_MODULE_PM_RECEIVER, VREG_STATE,
251 (grp) << TWL6030_CFG_STATE_GRP_SHIFT |
252 TWL6030_CFG_STATE_OFF);
253
254 return ret;
255 }
256
257 static int twl4030reg_get_status(struct regulator_dev *rdev)
258 {
259 int state = twlreg_grp(rdev);
260
261 if (state < 0)
262 return state;
263 state &= 0x0f;
264
265 /* assume state != WARM_RESET; we'd not be running... */
266 if (!state)
267 return REGULATOR_STATUS_OFF;
268 return (state & BIT(3))
269 ? REGULATOR_STATUS_NORMAL
270 : REGULATOR_STATUS_STANDBY;
271 }
272
273 static int twl6030reg_get_status(struct regulator_dev *rdev)
274 {
275 struct twlreg_info *info = rdev_get_drvdata(rdev);
276 int val;
277
278 val = twlreg_grp(rdev);
279 if (val < 0)
280 return val;
281
282 val = twlreg_read(info, TWL_MODULE_PM_RECEIVER, VREG_STATE);
283
284 switch (TWL6030_CFG_STATE_APP(val)) {
285 case TWL6030_CFG_STATE_ON:
286 return REGULATOR_STATUS_NORMAL;
287
288 case TWL6030_CFG_STATE_SLEEP:
289 return REGULATOR_STATUS_STANDBY;
290
291 case TWL6030_CFG_STATE_OFF:
292 case TWL6030_CFG_STATE_OFF2:
293 default:
294 break;
295 }
296
297 return REGULATOR_STATUS_OFF;
298 }
299
300 static int twl4030reg_set_mode(struct regulator_dev *rdev, unsigned mode)
301 {
302 struct twlreg_info *info = rdev_get_drvdata(rdev);
303 unsigned message;
304 int status;
305
306 /* We can only set the mode through state machine commands... */
307 switch (mode) {
308 case REGULATOR_MODE_NORMAL:
309 message = MSG_SINGULAR(DEV_GRP_P1, info->id, RES_STATE_ACTIVE);
310 break;
311 case REGULATOR_MODE_STANDBY:
312 message = MSG_SINGULAR(DEV_GRP_P1, info->id, RES_STATE_SLEEP);
313 break;
314 default:
315 return -EINVAL;
316 }
317
318 /* Ensure the resource is associated with some group */
319 status = twlreg_grp(rdev);
320 if (status < 0)
321 return status;
322 if (!(status & (P3_GRP_4030 | P2_GRP_4030 | P1_GRP_4030)))
323 return -EACCES;
324
325 status = twl_i2c_write_u8(TWL_MODULE_PM_MASTER,
326 message >> 8, TWL4030_PM_MASTER_PB_WORD_MSB);
327 if (status < 0)
328 return status;
329
330 return twl_i2c_write_u8(TWL_MODULE_PM_MASTER,
331 message & 0xff, TWL4030_PM_MASTER_PB_WORD_LSB);
332 }
333
334 static int twl6030reg_set_mode(struct regulator_dev *rdev, unsigned mode)
335 {
336 struct twlreg_info *info = rdev_get_drvdata(rdev);
337 int grp = 0;
338 int val;
339
340 if (!(twl_class_is_6030() && (info->features & TWL6025_SUBCLASS)))
341 grp = twlreg_grp(rdev);
342
343 if (grp < 0)
344 return grp;
345
346 /* Compose the state register settings */
347 val = grp << TWL6030_CFG_STATE_GRP_SHIFT;
348 /* We can only set the mode through state machine commands... */
349 switch (mode) {
350 case REGULATOR_MODE_NORMAL:
351 val |= TWL6030_CFG_STATE_ON;
352 break;
353 case REGULATOR_MODE_STANDBY:
354 val |= TWL6030_CFG_STATE_SLEEP;
355 break;
356
357 default:
358 return -EINVAL;
359 }
360
361 return twlreg_write(info, TWL_MODULE_PM_RECEIVER, VREG_STATE, val);
362 }
363
364 /*----------------------------------------------------------------------*/
365
366 /*
367 * Support for adjustable-voltage LDOs uses a four bit (or less) voltage
368 * select field in its control register. We use tables indexed by VSEL
369 * to record voltages in milliVolts. (Accuracy is about three percent.)
370 *
371 * Note that VSEL values for VAUX2 changed in twl5030 and newer silicon;
372 * currently handled by listing two slightly different VAUX2 regulators,
373 * only one of which will be configured.
374 *
375 * VSEL values documented as "TI cannot support these values" are flagged
376 * in these tables as UNSUP() values; we normally won't assign them.
377 *
378 * VAUX3 at 3V is incorrectly listed in some TI manuals as unsupported.
379 * TI are revising the twl5030/tps659x0 specs to support that 3.0V setting.
380 */
381 #define UNSUP_MASK 0x8000
382
383 #define UNSUP(x) (UNSUP_MASK | (x))
384 #define IS_UNSUP(info, x) \
385 ((UNSUP_MASK & (x)) && \
386 !((info)->features & TWL4030_ALLOW_UNSUPPORTED))
387 #define LDO_MV(x) (~UNSUP_MASK & (x))
388
389
390 static const u16 VAUX1_VSEL_table[] = {
391 UNSUP(1500), UNSUP(1800), 2500, 2800,
392 3000, 3000, 3000, 3000,
393 };
394 static const u16 VAUX2_4030_VSEL_table[] = {
395 UNSUP(1000), UNSUP(1000), UNSUP(1200), 1300,
396 1500, 1800, UNSUP(1850), 2500,
397 UNSUP(2600), 2800, UNSUP(2850), UNSUP(3000),
398 UNSUP(3150), UNSUP(3150), UNSUP(3150), UNSUP(3150),
399 };
400 static const u16 VAUX2_VSEL_table[] = {
401 1700, 1700, 1900, 1300,
402 1500, 1800, 2000, 2500,
403 2100, 2800, 2200, 2300,
404 2400, 2400, 2400, 2400,
405 };
406 static const u16 VAUX3_VSEL_table[] = {
407 1500, 1800, 2500, 2800,
408 3000, 3000, 3000, 3000,
409 };
410 static const u16 VAUX4_VSEL_table[] = {
411 700, 1000, 1200, UNSUP(1300),
412 1500, 1800, UNSUP(1850), 2500,
413 UNSUP(2600), 2800, UNSUP(2850), UNSUP(3000),
414 UNSUP(3150), UNSUP(3150), UNSUP(3150), UNSUP(3150),
415 };
416 static const u16 VMMC1_VSEL_table[] = {
417 1850, 2850, 3000, 3150,
418 };
419 static const u16 VMMC2_VSEL_table[] = {
420 UNSUP(1000), UNSUP(1000), UNSUP(1200), UNSUP(1300),
421 UNSUP(1500), UNSUP(1800), 1850, UNSUP(2500),
422 2600, 2800, 2850, 3000,
423 3150, 3150, 3150, 3150,
424 };
425 static const u16 VPLL1_VSEL_table[] = {
426 1000, 1200, 1300, 1800,
427 UNSUP(2800), UNSUP(3000), UNSUP(3000), UNSUP(3000),
428 };
429 static const u16 VPLL2_VSEL_table[] = {
430 700, 1000, 1200, 1300,
431 UNSUP(1500), 1800, UNSUP(1850), UNSUP(2500),
432 UNSUP(2600), UNSUP(2800), UNSUP(2850), UNSUP(3000),
433 UNSUP(3150), UNSUP(3150), UNSUP(3150), UNSUP(3150),
434 };
435 static const u16 VSIM_VSEL_table[] = {
436 UNSUP(1000), UNSUP(1200), UNSUP(1300), 1800,
437 2800, 3000, 3000, 3000,
438 };
439 static const u16 VDAC_VSEL_table[] = {
440 1200, 1300, 1800, 1800,
441 };
442 static const u16 VDD1_VSEL_table[] = {
443 800, 1450,
444 };
445 static const u16 VDD2_VSEL_table[] = {
446 800, 1450, 1500,
447 };
448 static const u16 VIO_VSEL_table[] = {
449 1800, 1850,
450 };
451 static const u16 VINTANA2_VSEL_table[] = {
452 2500, 2750,
453 };
454
455 static int twl4030ldo_list_voltage(struct regulator_dev *rdev, unsigned index)
456 {
457 struct twlreg_info *info = rdev_get_drvdata(rdev);
458 int mV = info->table[index];
459
460 return IS_UNSUP(info, mV) ? 0 : (LDO_MV(mV) * 1000);
461 }
462
463 static int
464 twl4030ldo_set_voltage_sel(struct regulator_dev *rdev, unsigned selector)
465 {
466 struct twlreg_info *info = rdev_get_drvdata(rdev);
467
468 return twlreg_write(info, TWL_MODULE_PM_RECEIVER, VREG_VOLTAGE,
469 selector);
470 }
471
472 static int twl4030ldo_get_voltage(struct regulator_dev *rdev)
473 {
474 struct twlreg_info *info = rdev_get_drvdata(rdev);
475 int vsel = twlreg_read(info, TWL_MODULE_PM_RECEIVER,
476 VREG_VOLTAGE);
477
478 if (vsel < 0)
479 return vsel;
480
481 vsel &= info->table_len - 1;
482 return LDO_MV(info->table[vsel]) * 1000;
483 }
484
485 static struct regulator_ops twl4030ldo_ops = {
486 .list_voltage = twl4030ldo_list_voltage,
487
488 .set_voltage_sel = twl4030ldo_set_voltage_sel,
489 .get_voltage = twl4030ldo_get_voltage,
490
491 .enable = twl4030reg_enable,
492 .disable = twl4030reg_disable,
493 .is_enabled = twl4030reg_is_enabled,
494
495 .set_mode = twl4030reg_set_mode,
496
497 .get_status = twl4030reg_get_status,
498 };
499
500 static int
501 twl4030smps_set_voltage(struct regulator_dev *rdev, int min_uV, int max_uV,
502 unsigned *selector)
503 {
504 struct twlreg_info *info = rdev_get_drvdata(rdev);
505 int vsel = DIV_ROUND_UP(min_uV - 600000, 12500);
506
507 if (info->set_voltage) {
508 return info->set_voltage(info->data, min_uV);
509 } else {
510 twlreg_write(info, TWL_MODULE_PM_RECEIVER,
511 VREG_VOLTAGE_SMPS_4030, vsel);
512 }
513
514 return 0;
515 }
516
517 static int twl4030smps_get_voltage(struct regulator_dev *rdev)
518 {
519 struct twlreg_info *info = rdev_get_drvdata(rdev);
520 int vsel;
521
522 if (info->get_voltage)
523 return info->get_voltage(info->data);
524
525 vsel = twlreg_read(info, TWL_MODULE_PM_RECEIVER,
526 VREG_VOLTAGE_SMPS_4030);
527
528 return vsel * 12500 + 600000;
529 }
530
531 static struct regulator_ops twl4030smps_ops = {
532 .set_voltage = twl4030smps_set_voltage,
533 .get_voltage = twl4030smps_get_voltage,
534 };
535
536 static int twl6030coresmps_set_voltage(struct regulator_dev *rdev, int min_uV,
537 int max_uV, unsigned *selector)
538 {
539 struct twlreg_info *info = rdev_get_drvdata(rdev);
540
541 if (info->set_voltage)
542 return info->set_voltage(info->data, min_uV);
543
544 return -ENODEV;
545 }
546
547 static int twl6030coresmps_get_voltage(struct regulator_dev *rdev)
548 {
549 struct twlreg_info *info = rdev_get_drvdata(rdev);
550
551 if (info->get_voltage)
552 return info->get_voltage(info->data);
553
554 return -ENODEV;
555 }
556
557 static struct regulator_ops twl6030coresmps_ops = {
558 .set_voltage = twl6030coresmps_set_voltage,
559 .get_voltage = twl6030coresmps_get_voltage,
560 };
561
562 static int
563 twl6030ldo_set_voltage(struct regulator_dev *rdev, int min_uV, int max_uV,
564 unsigned *selector)
565 {
566 struct twlreg_info *info = rdev_get_drvdata(rdev);
567 int vsel;
568
569 if ((min_uV/1000 < info->min_mV) || (max_uV/1000 > info->max_mV))
570 return -EDOM;
571
572 /*
573 * Use the below formula to calculate vsel
574 * mV = 1000mv + 100mv * (vsel - 1)
575 */
576 vsel = (min_uV/1000 - 1000)/100 + 1;
577 *selector = vsel;
578 return twlreg_write(info, TWL_MODULE_PM_RECEIVER, VREG_VOLTAGE, vsel);
579
580 }
581
582 static int twl6030ldo_get_voltage(struct regulator_dev *rdev)
583 {
584 struct twlreg_info *info = rdev_get_drvdata(rdev);
585 int vsel = twlreg_read(info, TWL_MODULE_PM_RECEIVER,
586 VREG_VOLTAGE);
587
588 if (vsel < 0)
589 return vsel;
590
591 /*
592 * Use the below formula to calculate vsel
593 * mV = 1000mv + 100mv * (vsel - 1)
594 */
595 return (1000 + (100 * (vsel - 1))) * 1000;
596 }
597
598 static struct regulator_ops twl6030ldo_ops = {
599 .list_voltage = regulator_list_voltage_linear,
600
601 .set_voltage = twl6030ldo_set_voltage,
602 .get_voltage = twl6030ldo_get_voltage,
603
604 .enable = twl6030reg_enable,
605 .disable = twl6030reg_disable,
606 .is_enabled = twl6030reg_is_enabled,
607
608 .set_mode = twl6030reg_set_mode,
609
610 .get_status = twl6030reg_get_status,
611 };
612
613 /*----------------------------------------------------------------------*/
614
615 /*
616 * Fixed voltage LDOs don't have a VSEL field to update.
617 */
618 static int twlfixed_list_voltage(struct regulator_dev *rdev, unsigned index)
619 {
620 struct twlreg_info *info = rdev_get_drvdata(rdev);
621
622 return info->min_mV * 1000;
623 }
624
625 static int twlfixed_get_voltage(struct regulator_dev *rdev)
626 {
627 struct twlreg_info *info = rdev_get_drvdata(rdev);
628
629 return info->min_mV * 1000;
630 }
631
632 static struct regulator_ops twl4030fixed_ops = {
633 .list_voltage = twlfixed_list_voltage,
634
635 .get_voltage = twlfixed_get_voltage,
636
637 .enable = twl4030reg_enable,
638 .disable = twl4030reg_disable,
639 .is_enabled = twl4030reg_is_enabled,
640
641 .set_mode = twl4030reg_set_mode,
642
643 .get_status = twl4030reg_get_status,
644 };
645
646 static struct regulator_ops twl6030fixed_ops = {
647 .list_voltage = twlfixed_list_voltage,
648
649 .get_voltage = twlfixed_get_voltage,
650
651 .enable = twl6030reg_enable,
652 .disable = twl6030reg_disable,
653 .is_enabled = twl6030reg_is_enabled,
654
655 .set_mode = twl6030reg_set_mode,
656
657 .get_status = twl6030reg_get_status,
658 };
659
660 static struct regulator_ops twl6030_fixed_resource = {
661 .enable = twl6030reg_enable,
662 .disable = twl6030reg_disable,
663 .is_enabled = twl6030reg_is_enabled,
664 .get_status = twl6030reg_get_status,
665 };
666
667 /*
668 * SMPS status and control
669 */
670
671 static int twl6030smps_list_voltage(struct regulator_dev *rdev, unsigned index)
672 {
673 struct twlreg_info *info = rdev_get_drvdata(rdev);
674
675 int voltage = 0;
676
677 switch (info->flags) {
678 case SMPS_OFFSET_EN:
679 voltage = 100000;
680 /* fall through */
681 case 0:
682 switch (index) {
683 case 0:
684 voltage = 0;
685 break;
686 case 58:
687 voltage = 1350 * 1000;
688 break;
689 case 59:
690 voltage = 1500 * 1000;
691 break;
692 case 60:
693 voltage = 1800 * 1000;
694 break;
695 case 61:
696 voltage = 1900 * 1000;
697 break;
698 case 62:
699 voltage = 2100 * 1000;
700 break;
701 default:
702 voltage += (600000 + (12500 * (index - 1)));
703 }
704 break;
705 case SMPS_EXTENDED_EN:
706 switch (index) {
707 case 0:
708 voltage = 0;
709 break;
710 case 58:
711 voltage = 2084 * 1000;
712 break;
713 case 59:
714 voltage = 2315 * 1000;
715 break;
716 case 60:
717 voltage = 2778 * 1000;
718 break;
719 case 61:
720 voltage = 2932 * 1000;
721 break;
722 case 62:
723 voltage = 3241 * 1000;
724 break;
725 default:
726 voltage = (1852000 + (38600 * (index - 1)));
727 }
728 break;
729 case SMPS_OFFSET_EN | SMPS_EXTENDED_EN:
730 switch (index) {
731 case 0:
732 voltage = 0;
733 break;
734 case 58:
735 voltage = 4167 * 1000;
736 break;
737 case 59:
738 voltage = 2315 * 1000;
739 break;
740 case 60:
741 voltage = 2778 * 1000;
742 break;
743 case 61:
744 voltage = 2932 * 1000;
745 break;
746 case 62:
747 voltage = 3241 * 1000;
748 break;
749 default:
750 voltage = (2161000 + (38600 * (index - 1)));
751 }
752 break;
753 }
754
755 return voltage;
756 }
757
758 static int
759 twl6030smps_set_voltage(struct regulator_dev *rdev, int min_uV, int max_uV,
760 unsigned int *selector)
761 {
762 struct twlreg_info *info = rdev_get_drvdata(rdev);
763 int vsel = 0;
764
765 switch (info->flags) {
766 case 0:
767 if (min_uV == 0)
768 vsel = 0;
769 else if ((min_uV >= 600000) && (min_uV <= 1300000)) {
770 int calc_uV;
771 vsel = DIV_ROUND_UP(min_uV - 600000, 12500);
772 vsel++;
773 calc_uV = twl6030smps_list_voltage(rdev, vsel);
774 if (calc_uV > max_uV)
775 return -EINVAL;
776 }
777 /* Values 1..57 for vsel are linear and can be calculated
778 * values 58..62 are non linear.
779 */
780 else if ((min_uV > 1900000) && (max_uV >= 2100000))
781 vsel = 62;
782 else if ((min_uV > 1800000) && (max_uV >= 1900000))
783 vsel = 61;
784 else if ((min_uV > 1500000) && (max_uV >= 1800000))
785 vsel = 60;
786 else if ((min_uV > 1350000) && (max_uV >= 1500000))
787 vsel = 59;
788 else if ((min_uV > 1300000) && (max_uV >= 1350000))
789 vsel = 58;
790 else
791 return -EINVAL;
792 break;
793 case SMPS_OFFSET_EN:
794 if (min_uV == 0)
795 vsel = 0;
796 else if ((min_uV >= 700000) && (min_uV <= 1420000)) {
797 int calc_uV;
798 vsel = DIV_ROUND_UP(min_uV - 700000, 12500);
799 vsel++;
800 calc_uV = twl6030smps_list_voltage(rdev, vsel);
801 if (calc_uV > max_uV)
802 return -EINVAL;
803 }
804 /* Values 1..57 for vsel are linear and can be calculated
805 * values 58..62 are non linear.
806 */
807 else if ((min_uV > 1900000) && (max_uV >= 2100000))
808 vsel = 62;
809 else if ((min_uV > 1800000) && (max_uV >= 1900000))
810 vsel = 61;
811 else if ((min_uV > 1350000) && (max_uV >= 1800000))
812 vsel = 60;
813 else if ((min_uV > 1350000) && (max_uV >= 1500000))
814 vsel = 59;
815 else if ((min_uV > 1300000) && (max_uV >= 1350000))
816 vsel = 58;
817 else
818 return -EINVAL;
819 break;
820 case SMPS_EXTENDED_EN:
821 if (min_uV == 0) {
822 vsel = 0;
823 } else if ((min_uV >= 1852000) && (max_uV <= 4013600)) {
824 vsel = DIV_ROUND_UP(min_uV - 1852000, 38600);
825 vsel++;
826 }
827 break;
828 case SMPS_OFFSET_EN|SMPS_EXTENDED_EN:
829 if (min_uV == 0) {
830 vsel = 0;
831 } else if ((min_uV >= 2161000) && (max_uV <= 4321000)) {
832 vsel = DIV_ROUND_UP(min_uV - 2161000, 38600);
833 vsel++;
834 }
835 break;
836 }
837
838 *selector = vsel;
839
840 return twlreg_write(info, TWL_MODULE_PM_RECEIVER, VREG_VOLTAGE_SMPS,
841 vsel);
842 }
843
844 static int twl6030smps_get_voltage_sel(struct regulator_dev *rdev)
845 {
846 struct twlreg_info *info = rdev_get_drvdata(rdev);
847
848 return twlreg_read(info, TWL_MODULE_PM_RECEIVER, VREG_VOLTAGE_SMPS);
849 }
850
851 static struct regulator_ops twlsmps_ops = {
852 .list_voltage = twl6030smps_list_voltage,
853
854 .set_voltage = twl6030smps_set_voltage,
855 .get_voltage_sel = twl6030smps_get_voltage_sel,
856
857 .enable = twl6030reg_enable,
858 .disable = twl6030reg_disable,
859 .is_enabled = twl6030reg_is_enabled,
860
861 .set_mode = twl6030reg_set_mode,
862
863 .get_status = twl6030reg_get_status,
864 };
865
866 /*----------------------------------------------------------------------*/
867
868 #define TWL4030_FIXED_LDO(label, offset, mVolts, num, turnon_delay, \
869 remap_conf) \
870 TWL_FIXED_LDO(label, offset, mVolts, num, turnon_delay, \
871 remap_conf, TWL4030, twl4030fixed_ops)
872 #define TWL6030_FIXED_LDO(label, offset, mVolts, turnon_delay) \
873 TWL_FIXED_LDO(label, offset, mVolts, 0x0, turnon_delay, \
874 0x0, TWL6030, twl6030fixed_ops)
875
876 #define TWL4030_ADJUSTABLE_LDO(label, offset, num, turnon_delay, remap_conf) \
877 static struct twlreg_info TWL4030_INFO_##label = { \
878 .base = offset, \
879 .id = num, \
880 .table_len = ARRAY_SIZE(label##_VSEL_table), \
881 .table = label##_VSEL_table, \
882 .remap = remap_conf, \
883 .desc = { \
884 .name = #label, \
885 .id = TWL4030_REG_##label, \
886 .n_voltages = ARRAY_SIZE(label##_VSEL_table), \
887 .ops = &twl4030ldo_ops, \
888 .type = REGULATOR_VOLTAGE, \
889 .owner = THIS_MODULE, \
890 .enable_time = turnon_delay, \
891 }, \
892 }
893
894 #define TWL4030_ADJUSTABLE_SMPS(label, offset, num, turnon_delay, remap_conf) \
895 static struct twlreg_info TWL4030_INFO_##label = { \
896 .base = offset, \
897 .id = num, \
898 .remap = remap_conf, \
899 .desc = { \
900 .name = #label, \
901 .id = TWL4030_REG_##label, \
902 .ops = &twl4030smps_ops, \
903 .type = REGULATOR_VOLTAGE, \
904 .owner = THIS_MODULE, \
905 .enable_time = turnon_delay, \
906 }, \
907 }
908
909 #define TWL6030_ADJUSTABLE_SMPS(label) \
910 static struct twlreg_info TWL6030_INFO_##label = { \
911 .desc = { \
912 .name = #label, \
913 .id = TWL6030_REG_##label, \
914 .ops = &twl6030coresmps_ops, \
915 .type = REGULATOR_VOLTAGE, \
916 .owner = THIS_MODULE, \
917 }, \
918 }
919
920 #define TWL6030_ADJUSTABLE_LDO(label, offset, min_mVolts, max_mVolts) \
921 static struct twlreg_info TWL6030_INFO_##label = { \
922 .base = offset, \
923 .min_mV = min_mVolts, \
924 .max_mV = max_mVolts, \
925 .desc = { \
926 .name = #label, \
927 .id = TWL6030_REG_##label, \
928 .n_voltages = (max_mVolts - min_mVolts)/100 + 1, \
929 .ops = &twl6030ldo_ops, \
930 .type = REGULATOR_VOLTAGE, \
931 .owner = THIS_MODULE, \
932 .min_uV = min_mVolts * 1000, \
933 .uV_step = 100 * 1000, \
934 }, \
935 }
936
937 #define TWL6025_ADJUSTABLE_LDO(label, offset, min_mVolts, max_mVolts) \
938 static struct twlreg_info TWL6025_INFO_##label = { \
939 .base = offset, \
940 .min_mV = min_mVolts, \
941 .max_mV = max_mVolts, \
942 .desc = { \
943 .name = #label, \
944 .id = TWL6025_REG_##label, \
945 .n_voltages = ((max_mVolts - min_mVolts)/100) + 1, \
946 .ops = &twl6030ldo_ops, \
947 .type = REGULATOR_VOLTAGE, \
948 .owner = THIS_MODULE, \
949 .min_uV = min_mVolts * 1000, \
950 .uV_step = 100 * 1000, \
951 }, \
952 }
953
954 #define TWL_FIXED_LDO(label, offset, mVolts, num, turnon_delay, remap_conf, \
955 family, operations) \
956 static struct twlreg_info TWLFIXED_INFO_##label = { \
957 .base = offset, \
958 .id = num, \
959 .min_mV = mVolts, \
960 .remap = remap_conf, \
961 .desc = { \
962 .name = #label, \
963 .id = family##_REG_##label, \
964 .n_voltages = 1, \
965 .ops = &operations, \
966 .type = REGULATOR_VOLTAGE, \
967 .owner = THIS_MODULE, \
968 .enable_time = turnon_delay, \
969 }, \
970 }
971
972 #define TWL6030_FIXED_RESOURCE(label, offset, turnon_delay) \
973 static struct twlreg_info TWLRES_INFO_##label = { \
974 .base = offset, \
975 .desc = { \
976 .name = #label, \
977 .id = TWL6030_REG_##label, \
978 .ops = &twl6030_fixed_resource, \
979 .type = REGULATOR_VOLTAGE, \
980 .owner = THIS_MODULE, \
981 .enable_time = turnon_delay, \
982 }, \
983 }
984
985 #define TWL6025_ADJUSTABLE_SMPS(label, offset) \
986 static struct twlreg_info TWLSMPS_INFO_##label = { \
987 .base = offset, \
988 .min_mV = 600, \
989 .max_mV = 2100, \
990 .desc = { \
991 .name = #label, \
992 .id = TWL6025_REG_##label, \
993 .n_voltages = 63, \
994 .ops = &twlsmps_ops, \
995 .type = REGULATOR_VOLTAGE, \
996 .owner = THIS_MODULE, \
997 }, \
998 }
999
1000 /*
1001 * We list regulators here if systems need some level of
1002 * software control over them after boot.
1003 */
1004 TWL4030_ADJUSTABLE_LDO(VAUX1, 0x17, 1, 100, 0x08);
1005 TWL4030_ADJUSTABLE_LDO(VAUX2_4030, 0x1b, 2, 100, 0x08);
1006 TWL4030_ADJUSTABLE_LDO(VAUX2, 0x1b, 2, 100, 0x08);
1007 TWL4030_ADJUSTABLE_LDO(VAUX3, 0x1f, 3, 100, 0x08);
1008 TWL4030_ADJUSTABLE_LDO(VAUX4, 0x23, 4, 100, 0x08);
1009 TWL4030_ADJUSTABLE_LDO(VMMC1, 0x27, 5, 100, 0x08);
1010 TWL4030_ADJUSTABLE_LDO(VMMC2, 0x2b, 6, 100, 0x08);
1011 TWL4030_ADJUSTABLE_LDO(VPLL1, 0x2f, 7, 100, 0x00);
1012 TWL4030_ADJUSTABLE_LDO(VPLL2, 0x33, 8, 100, 0x08);
1013 TWL4030_ADJUSTABLE_LDO(VSIM, 0x37, 9, 100, 0x00);
1014 TWL4030_ADJUSTABLE_LDO(VDAC, 0x3b, 10, 100, 0x08);
1015 TWL4030_ADJUSTABLE_LDO(VINTANA2, 0x43, 12, 100, 0x08);
1016 TWL4030_ADJUSTABLE_LDO(VIO, 0x4b, 14, 1000, 0x08);
1017 TWL4030_ADJUSTABLE_SMPS(VDD1, 0x55, 15, 1000, 0x08);
1018 TWL4030_ADJUSTABLE_SMPS(VDD2, 0x63, 16, 1000, 0x08);
1019 /* VUSBCP is managed *only* by the USB subchip */
1020 /* 6030 REG with base as PMC Slave Misc : 0x0030 */
1021 /* Turnon-delay and remap configuration values for 6030 are not
1022 verified since the specification is not public */
1023 TWL6030_ADJUSTABLE_SMPS(VDD1);
1024 TWL6030_ADJUSTABLE_SMPS(VDD2);
1025 TWL6030_ADJUSTABLE_SMPS(VDD3);
1026 TWL6030_ADJUSTABLE_LDO(VAUX1_6030, 0x54, 1000, 3300);
1027 TWL6030_ADJUSTABLE_LDO(VAUX2_6030, 0x58, 1000, 3300);
1028 TWL6030_ADJUSTABLE_LDO(VAUX3_6030, 0x5c, 1000, 3300);
1029 TWL6030_ADJUSTABLE_LDO(VMMC, 0x68, 1000, 3300);
1030 TWL6030_ADJUSTABLE_LDO(VPP, 0x6c, 1000, 3300);
1031 TWL6030_ADJUSTABLE_LDO(VUSIM, 0x74, 1000, 3300);
1032 /* 6025 are renamed compared to 6030 versions */
1033 TWL6025_ADJUSTABLE_LDO(LDO2, 0x54, 1000, 3300);
1034 TWL6025_ADJUSTABLE_LDO(LDO4, 0x58, 1000, 3300);
1035 TWL6025_ADJUSTABLE_LDO(LDO3, 0x5c, 1000, 3300);
1036 TWL6025_ADJUSTABLE_LDO(LDO5, 0x68, 1000, 3300);
1037 TWL6025_ADJUSTABLE_LDO(LDO1, 0x6c, 1000, 3300);
1038 TWL6025_ADJUSTABLE_LDO(LDO7, 0x74, 1000, 3300);
1039 TWL6025_ADJUSTABLE_LDO(LDO6, 0x60, 1000, 3300);
1040 TWL6025_ADJUSTABLE_LDO(LDOLN, 0x64, 1000, 3300);
1041 TWL6025_ADJUSTABLE_LDO(LDOUSB, 0x70, 1000, 3300);
1042 TWL4030_FIXED_LDO(VINTANA2, 0x3f, 1500, 11, 100, 0x08);
1043 TWL4030_FIXED_LDO(VINTDIG, 0x47, 1500, 13, 100, 0x08);
1044 TWL4030_FIXED_LDO(VUSB1V5, 0x71, 1500, 17, 100, 0x08);
1045 TWL4030_FIXED_LDO(VUSB1V8, 0x74, 1800, 18, 100, 0x08);
1046 TWL4030_FIXED_LDO(VUSB3V1, 0x77, 3100, 19, 150, 0x08);
1047 TWL6030_FIXED_LDO(VANA, 0x50, 2100, 0);
1048 TWL6030_FIXED_LDO(VCXIO, 0x60, 1800, 0);
1049 TWL6030_FIXED_LDO(VDAC, 0x64, 1800, 0);
1050 TWL6030_FIXED_LDO(VUSB, 0x70, 3300, 0);
1051 TWL6030_FIXED_LDO(V1V8, 0x16, 1800, 0);
1052 TWL6030_FIXED_LDO(V2V1, 0x1c, 2100, 0);
1053 TWL6030_FIXED_RESOURCE(CLK32KG, 0x8C, 0);
1054 TWL6025_ADJUSTABLE_SMPS(SMPS3, 0x34);
1055 TWL6025_ADJUSTABLE_SMPS(SMPS4, 0x10);
1056 TWL6025_ADJUSTABLE_SMPS(VIO, 0x16);
1057
1058 static u8 twl_get_smps_offset(void)
1059 {
1060 u8 value;
1061
1062 twl_i2c_read_u8(TWL_MODULE_PM_RECEIVER, &value,
1063 TWL6030_SMPS_OFFSET);
1064 return value;
1065 }
1066
1067 static u8 twl_get_smps_mult(void)
1068 {
1069 u8 value;
1070
1071 twl_i2c_read_u8(TWL_MODULE_PM_RECEIVER, &value,
1072 TWL6030_SMPS_MULT);
1073 return value;
1074 }
1075
1076 #define TWL_OF_MATCH(comp, family, label) \
1077 { \
1078 .compatible = comp, \
1079 .data = &family##_INFO_##label, \
1080 }
1081
1082 #define TWL4030_OF_MATCH(comp, label) TWL_OF_MATCH(comp, TWL4030, label)
1083 #define TWL6030_OF_MATCH(comp, label) TWL_OF_MATCH(comp, TWL6030, label)
1084 #define TWL6025_OF_MATCH(comp, label) TWL_OF_MATCH(comp, TWL6025, label)
1085 #define TWLFIXED_OF_MATCH(comp, label) TWL_OF_MATCH(comp, TWLFIXED, label)
1086 #define TWLSMPS_OF_MATCH(comp, label) TWL_OF_MATCH(comp, TWLSMPS, label)
1087
1088 static const struct of_device_id twl_of_match[] __devinitconst = {
1089 TWL4030_OF_MATCH("ti,twl4030-vaux1", VAUX1),
1090 TWL4030_OF_MATCH("ti,twl4030-vaux2", VAUX2_4030),
1091 TWL4030_OF_MATCH("ti,twl5030-vaux2", VAUX2),
1092 TWL4030_OF_MATCH("ti,twl4030-vaux3", VAUX3),
1093 TWL4030_OF_MATCH("ti,twl4030-vaux4", VAUX4),
1094 TWL4030_OF_MATCH("ti,twl4030-vmmc1", VMMC1),
1095 TWL4030_OF_MATCH("ti,twl4030-vmmc2", VMMC2),
1096 TWL4030_OF_MATCH("ti,twl4030-vpll1", VPLL1),
1097 TWL4030_OF_MATCH("ti,twl4030-vpll2", VPLL2),
1098 TWL4030_OF_MATCH("ti,twl4030-vsim", VSIM),
1099 TWL4030_OF_MATCH("ti,twl4030-vdac", VDAC),
1100 TWL4030_OF_MATCH("ti,twl4030-vintana2", VINTANA2),
1101 TWL4030_OF_MATCH("ti,twl4030-vio", VIO),
1102 TWL4030_OF_MATCH("ti,twl4030-vdd1", VDD1),
1103 TWL4030_OF_MATCH("ti,twl4030-vdd2", VDD2),
1104 TWL6030_OF_MATCH("ti,twl6030-vdd1", VDD1),
1105 TWL6030_OF_MATCH("ti,twl6030-vdd2", VDD2),
1106 TWL6030_OF_MATCH("ti,twl6030-vdd3", VDD3),
1107 TWL6030_OF_MATCH("ti,twl6030-vaux1", VAUX1_6030),
1108 TWL6030_OF_MATCH("ti,twl6030-vaux2", VAUX2_6030),
1109 TWL6030_OF_MATCH("ti,twl6030-vaux3", VAUX3_6030),
1110 TWL6030_OF_MATCH("ti,twl6030-vmmc", VMMC),
1111 TWL6030_OF_MATCH("ti,twl6030-vpp", VPP),
1112 TWL6030_OF_MATCH("ti,twl6030-vusim", VUSIM),
1113 TWL6025_OF_MATCH("ti,twl6025-ldo2", LDO2),
1114 TWL6025_OF_MATCH("ti,twl6025-ldo4", LDO4),
1115 TWL6025_OF_MATCH("ti,twl6025-ldo3", LDO3),
1116 TWL6025_OF_MATCH("ti,twl6025-ldo5", LDO5),
1117 TWL6025_OF_MATCH("ti,twl6025-ldo1", LDO1),
1118 TWL6025_OF_MATCH("ti,twl6025-ldo7", LDO7),
1119 TWL6025_OF_MATCH("ti,twl6025-ldo6", LDO6),
1120 TWL6025_OF_MATCH("ti,twl6025-ldoln", LDOLN),
1121 TWL6025_OF_MATCH("ti,twl6025-ldousb", LDOUSB),
1122 TWLFIXED_OF_MATCH("ti,twl4030-vintana2", VINTANA2),
1123 TWLFIXED_OF_MATCH("ti,twl4030-vintdig", VINTDIG),
1124 TWLFIXED_OF_MATCH("ti,twl4030-vusb1v5", VUSB1V5),
1125 TWLFIXED_OF_MATCH("ti,twl4030-vusb1v8", VUSB1V8),
1126 TWLFIXED_OF_MATCH("ti,twl4030-vusb3v1", VUSB3V1),
1127 TWLFIXED_OF_MATCH("ti,twl6030-vana", VANA),
1128 TWLFIXED_OF_MATCH("ti,twl6030-vcxio", VCXIO),
1129 TWLFIXED_OF_MATCH("ti,twl6030-vdac", VDAC),
1130 TWLFIXED_OF_MATCH("ti,twl6030-vusb", VUSB),
1131 TWLFIXED_OF_MATCH("ti,twl6030-v1v8", V1V8),
1132 TWLFIXED_OF_MATCH("ti,twl6030-v2v1", V2V1),
1133 TWLSMPS_OF_MATCH("ti,twl6025-smps3", SMPS3),
1134 TWLSMPS_OF_MATCH("ti,twl6025-smps4", SMPS4),
1135 TWLSMPS_OF_MATCH("ti,twl6025-vio", VIO),
1136 {},
1137 };
1138 MODULE_DEVICE_TABLE(of, twl_of_match);
1139
1140 static int __devinit twlreg_probe(struct platform_device *pdev)
1141 {
1142 int i, id;
1143 struct twlreg_info *info;
1144 struct regulator_init_data *initdata;
1145 struct regulation_constraints *c;
1146 struct regulator_dev *rdev;
1147 struct twl_regulator_driver_data *drvdata;
1148 const struct of_device_id *match;
1149 struct regulator_config config = { };
1150
1151 match = of_match_device(twl_of_match, &pdev->dev);
1152 if (match) {
1153 info = match->data;
1154 id = info->desc.id;
1155 initdata = of_get_regulator_init_data(&pdev->dev,
1156 pdev->dev.of_node);
1157 drvdata = NULL;
1158 } else {
1159 id = pdev->id;
1160 initdata = pdev->dev.platform_data;
1161 for (i = 0, info = NULL; i < ARRAY_SIZE(twl_of_match); i++) {
1162 info = twl_of_match[i].data;
1163 if (info && info->desc.id == id)
1164 break;
1165 }
1166 if (i == ARRAY_SIZE(twl_of_match))
1167 return -ENODEV;
1168
1169 drvdata = initdata->driver_data;
1170 if (!drvdata)
1171 return -EINVAL;
1172 }
1173
1174 if (!info)
1175 return -ENODEV;
1176
1177 if (!initdata)
1178 return -EINVAL;
1179
1180 if (drvdata) {
1181 /* copy the driver data into regulator data */
1182 info->features = drvdata->features;
1183 info->data = drvdata->data;
1184 info->set_voltage = drvdata->set_voltage;
1185 info->get_voltage = drvdata->get_voltage;
1186 }
1187
1188 /* Constrain board-specific capabilities according to what
1189 * this driver and the chip itself can actually do.
1190 */
1191 c = &initdata->constraints;
1192 c->valid_modes_mask &= REGULATOR_MODE_NORMAL | REGULATOR_MODE_STANDBY;
1193 c->valid_ops_mask &= REGULATOR_CHANGE_VOLTAGE
1194 | REGULATOR_CHANGE_MODE
1195 | REGULATOR_CHANGE_STATUS;
1196 switch (id) {
1197 case TWL4030_REG_VIO:
1198 case TWL4030_REG_VDD1:
1199 case TWL4030_REG_VDD2:
1200 case TWL4030_REG_VPLL1:
1201 case TWL4030_REG_VINTANA1:
1202 case TWL4030_REG_VINTANA2:
1203 case TWL4030_REG_VINTDIG:
1204 c->always_on = true;
1205 break;
1206 default:
1207 break;
1208 }
1209
1210 switch (id) {
1211 case TWL6025_REG_SMPS3:
1212 if (twl_get_smps_mult() & SMPS_MULTOFFSET_SMPS3)
1213 info->flags |= SMPS_EXTENDED_EN;
1214 if (twl_get_smps_offset() & SMPS_MULTOFFSET_SMPS3)
1215 info->flags |= SMPS_OFFSET_EN;
1216 break;
1217 case TWL6025_REG_SMPS4:
1218 if (twl_get_smps_mult() & SMPS_MULTOFFSET_SMPS4)
1219 info->flags |= SMPS_EXTENDED_EN;
1220 if (twl_get_smps_offset() & SMPS_MULTOFFSET_SMPS4)
1221 info->flags |= SMPS_OFFSET_EN;
1222 break;
1223 case TWL6025_REG_VIO:
1224 if (twl_get_smps_mult() & SMPS_MULTOFFSET_VIO)
1225 info->flags |= SMPS_EXTENDED_EN;
1226 if (twl_get_smps_offset() & SMPS_MULTOFFSET_VIO)
1227 info->flags |= SMPS_OFFSET_EN;
1228 break;
1229 }
1230
1231 config.dev = &pdev->dev;
1232 config.init_data = initdata;
1233 config.driver_data = info;
1234 config.of_node = pdev->dev.of_node;
1235
1236 rdev = regulator_register(&info->desc, &config);
1237 if (IS_ERR(rdev)) {
1238 dev_err(&pdev->dev, "can't register %s, %ld\n",
1239 info->desc.name, PTR_ERR(rdev));
1240 return PTR_ERR(rdev);
1241 }
1242 platform_set_drvdata(pdev, rdev);
1243
1244 if (twl_class_is_4030())
1245 twlreg_write(info, TWL_MODULE_PM_RECEIVER, VREG_REMAP,
1246 info->remap);
1247
1248 /* NOTE: many regulators support short-circuit IRQs (presentable
1249 * as REGULATOR_OVER_CURRENT notifications?) configured via:
1250 * - SC_CONFIG
1251 * - SC_DETECT1 (vintana2, vmmc1/2, vaux1/2/3/4)
1252 * - SC_DETECT2 (vusb, vdac, vio, vdd1/2, vpll2)
1253 * - IT_CONFIG
1254 */
1255
1256 return 0;
1257 }
1258
1259 static int __devexit twlreg_remove(struct platform_device *pdev)
1260 {
1261 regulator_unregister(platform_get_drvdata(pdev));
1262 return 0;
1263 }
1264
1265 MODULE_ALIAS("platform:twl_reg");
1266
1267 static struct platform_driver twlreg_driver = {
1268 .probe = twlreg_probe,
1269 .remove = __devexit_p(twlreg_remove),
1270 /* NOTE: short name, to work around driver model truncation of
1271 * "twl_regulator.12" (and friends) to "twl_regulator.1".
1272 */
1273 .driver = {
1274 .name = "twl_reg",
1275 .owner = THIS_MODULE,
1276 .of_match_table = of_match_ptr(twl_of_match),
1277 },
1278 };
1279
1280 static int __init twlreg_init(void)
1281 {
1282 return platform_driver_register(&twlreg_driver);
1283 }
1284 subsys_initcall(twlreg_init);
1285
1286 static void __exit twlreg_exit(void)
1287 {
1288 platform_driver_unregister(&twlreg_driver);
1289 }
1290 module_exit(twlreg_exit)
1291
1292 MODULE_DESCRIPTION("TWL regulator driver");
1293 MODULE_LICENSE("GPL");
Linux kernel - Deliverables
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