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[GitHub/mt8127/android_kernel_alcatel_ttab.git] / drivers / regulator / twl-regulator.c
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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
35struct 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
117static inline int
118twlreg_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
128static inline int
129twlreg_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
140static 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
159static 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
169static 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
189static 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
206static 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
223static 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
240static 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
257static 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
273static 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
300static 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
334static 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
390static const u16 VAUX1_VSEL_table[] = {
391 UNSUP(1500), UNSUP(1800), 2500, 2800,
392 3000, 3000, 3000, 3000,
393};
394static 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};
400static 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};
406static const u16 VAUX3_VSEL_table[] = {
407 1500, 1800, 2500, 2800,
408 3000, 3000, 3000, 3000,
409};
410static 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};
416static const u16 VMMC1_VSEL_table[] = {
417 1850, 2850, 3000, 3150,
418};
419static 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};
425static const u16 VPLL1_VSEL_table[] = {
426 1000, 1200, 1300, 1800,
427 UNSUP(2800), UNSUP(3000), UNSUP(3000), UNSUP(3000),
428};
429static 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};
435static const u16 VSIM_VSEL_table[] = {
436 UNSUP(1000), UNSUP(1200), UNSUP(1300), 1800,
437 2800, 3000, 3000, 3000,
438};
439static const u16 VDAC_VSEL_table[] = {
440 1200, 1300, 1800, 1800,
441};
442static const u16 VDD1_VSEL_table[] = {
443 800, 1450,
444};
445static const u16 VDD2_VSEL_table[] = {
446 800, 1450, 1500,
447};
448static const u16 VIO_VSEL_table[] = {
449 1800, 1850,
450};
451static const u16 VINTANA2_VSEL_table[] = {
452 2500, 2750,
453};
454
455static 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
463static int
464twl4030ldo_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
472static 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
485static 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
500static int
501twl4030smps_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
517static 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
531static struct regulator_ops twl4030smps_ops = {
532 .set_voltage = twl4030smps_set_voltage,
533 .get_voltage = twl4030smps_get_voltage,
534};
535
536static 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
547static 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
557static struct regulator_ops twl6030coresmps_ops = {
558 .set_voltage = twl6030coresmps_set_voltage,
559 .get_voltage = twl6030coresmps_get_voltage,
560};
561
562static int twl6030ldo_list_voltage(struct regulator_dev *rdev, unsigned sel)
563{
564 struct twlreg_info *info = rdev_get_drvdata(rdev);
565
566 switch (sel) {
567 case 0:
568 return 0;
569 case 1 ... 24:
570 /* Linear mapping from 00000001 to 00011000:
571 * Absolute voltage value = 1.0 V + 0.1 V × (sel – 00000001)
572 */
573 return (info->min_mV + 100 * (sel - 1)) * 1000;
574 case 25 ... 30:
575 return -EINVAL;
576 case 31:
577 return 2750000;
578 default:
579 return -EINVAL;
580 }
581}
582
583static int
584twl6030ldo_set_voltage_sel(struct regulator_dev *rdev, unsigned selector)
585{
586 struct twlreg_info *info = rdev_get_drvdata(rdev);
587
588 return twlreg_write(info, TWL_MODULE_PM_RECEIVER, VREG_VOLTAGE,
589 selector);
590}
591
592static int twl6030ldo_get_voltage_sel(struct regulator_dev *rdev)
593{
594 struct twlreg_info *info = rdev_get_drvdata(rdev);
595 int vsel = twlreg_read(info, TWL_MODULE_PM_RECEIVER, VREG_VOLTAGE);
596
597 return vsel;
598}
599
600static struct regulator_ops twl6030ldo_ops = {
601 .list_voltage = twl6030ldo_list_voltage,
602
603 .set_voltage_sel = twl6030ldo_set_voltage_sel,
604 .get_voltage_sel = twl6030ldo_get_voltage_sel,
605
606 .enable = twl6030reg_enable,
607 .disable = twl6030reg_disable,
608 .is_enabled = twl6030reg_is_enabled,
609
610 .set_mode = twl6030reg_set_mode,
611
612 .get_status = twl6030reg_get_status,
613};
614
615/*----------------------------------------------------------------------*/
616
617/*
618 * Fixed voltage LDOs don't have a VSEL field to update.
619 */
620static int twlfixed_list_voltage(struct regulator_dev *rdev, unsigned index)
621{
622 struct twlreg_info *info = rdev_get_drvdata(rdev);
623
624 return info->min_mV * 1000;
625}
626
627static int twlfixed_get_voltage(struct regulator_dev *rdev)
628{
629 struct twlreg_info *info = rdev_get_drvdata(rdev);
630
631 return info->min_mV * 1000;
632}
633
634static struct regulator_ops twl4030fixed_ops = {
635 .list_voltage = twlfixed_list_voltage,
636
637 .get_voltage = twlfixed_get_voltage,
638
639 .enable = twl4030reg_enable,
640 .disable = twl4030reg_disable,
641 .is_enabled = twl4030reg_is_enabled,
642
643 .set_mode = twl4030reg_set_mode,
644
645 .get_status = twl4030reg_get_status,
646};
647
648static struct regulator_ops twl6030fixed_ops = {
649 .list_voltage = twlfixed_list_voltage,
650
651 .get_voltage = twlfixed_get_voltage,
652
653 .enable = twl6030reg_enable,
654 .disable = twl6030reg_disable,
655 .is_enabled = twl6030reg_is_enabled,
656
657 .set_mode = twl6030reg_set_mode,
658
659 .get_status = twl6030reg_get_status,
660};
661
662static struct regulator_ops twl6030_fixed_resource = {
663 .enable = twl6030reg_enable,
664 .disable = twl6030reg_disable,
665 .is_enabled = twl6030reg_is_enabled,
666 .get_status = twl6030reg_get_status,
667};
668
669/*
670 * SMPS status and control
671 */
672
673static int twl6030smps_list_voltage(struct regulator_dev *rdev, unsigned index)
674{
675 struct twlreg_info *info = rdev_get_drvdata(rdev);
676
677 int voltage = 0;
678
679 switch (info->flags) {
680 case SMPS_OFFSET_EN:
681 voltage = 100000;
682 /* fall through */
683 case 0:
684 switch (index) {
685 case 0:
686 voltage = 0;
687 break;
688 case 58:
689 voltage = 1350 * 1000;
690 break;
691 case 59:
692 voltage = 1500 * 1000;
693 break;
694 case 60:
695 voltage = 1800 * 1000;
696 break;
697 case 61:
698 voltage = 1900 * 1000;
699 break;
700 case 62:
701 voltage = 2100 * 1000;
702 break;
703 default:
704 voltage += (600000 + (12500 * (index - 1)));
705 }
706 break;
707 case SMPS_EXTENDED_EN:
708 switch (index) {
709 case 0:
710 voltage = 0;
711 break;
712 case 58:
713 voltage = 2084 * 1000;
714 break;
715 case 59:
716 voltage = 2315 * 1000;
717 break;
718 case 60:
719 voltage = 2778 * 1000;
720 break;
721 case 61:
722 voltage = 2932 * 1000;
723 break;
724 case 62:
725 voltage = 3241 * 1000;
726 break;
727 default:
728 voltage = (1852000 + (38600 * (index - 1)));
729 }
730 break;
731 case SMPS_OFFSET_EN | SMPS_EXTENDED_EN:
732 switch (index) {
733 case 0:
734 voltage = 0;
735 break;
736 case 58:
737 voltage = 4167 * 1000;
738 break;
739 case 59:
740 voltage = 2315 * 1000;
741 break;
742 case 60:
743 voltage = 2778 * 1000;
744 break;
745 case 61:
746 voltage = 2932 * 1000;
747 break;
748 case 62:
749 voltage = 3241 * 1000;
750 break;
751 default:
752 voltage = (2161000 + (38600 * (index - 1)));
753 }
754 break;
755 }
756
757 return voltage;
758}
759
760static int
761twl6030smps_set_voltage(struct regulator_dev *rdev, int min_uV, int max_uV,
762 unsigned int *selector)
763{
764 struct twlreg_info *info = rdev_get_drvdata(rdev);
765 int vsel = 0;
766
767 switch (info->flags) {
768 case 0:
769 if (min_uV == 0)
770 vsel = 0;
771 else if ((min_uV >= 600000) && (min_uV <= 1300000)) {
772 int calc_uV;
773 vsel = DIV_ROUND_UP(min_uV - 600000, 12500);
774 vsel++;
775 calc_uV = twl6030smps_list_voltage(rdev, vsel);
776 if (calc_uV > max_uV)
777 return -EINVAL;
778 }
779 /* Values 1..57 for vsel are linear and can be calculated
780 * values 58..62 are non linear.
781 */
782 else if ((min_uV > 1900000) && (max_uV >= 2100000))
783 vsel = 62;
784 else if ((min_uV > 1800000) && (max_uV >= 1900000))
785 vsel = 61;
786 else if ((min_uV > 1500000) && (max_uV >= 1800000))
787 vsel = 60;
788 else if ((min_uV > 1350000) && (max_uV >= 1500000))
789 vsel = 59;
790 else if ((min_uV > 1300000) && (max_uV >= 1350000))
791 vsel = 58;
792 else
793 return -EINVAL;
794 break;
795 case SMPS_OFFSET_EN:
796 if (min_uV == 0)
797 vsel = 0;
798 else if ((min_uV >= 700000) && (min_uV <= 1420000)) {
799 int calc_uV;
800 vsel = DIV_ROUND_UP(min_uV - 700000, 12500);
801 vsel++;
802 calc_uV = twl6030smps_list_voltage(rdev, vsel);
803 if (calc_uV > max_uV)
804 return -EINVAL;
805 }
806 /* Values 1..57 for vsel are linear and can be calculated
807 * values 58..62 are non linear.
808 */
809 else if ((min_uV > 1900000) && (max_uV >= 2100000))
810 vsel = 62;
811 else if ((min_uV > 1800000) && (max_uV >= 1900000))
812 vsel = 61;
813 else if ((min_uV > 1350000) && (max_uV >= 1800000))
814 vsel = 60;
815 else if ((min_uV > 1350000) && (max_uV >= 1500000))
816 vsel = 59;
817 else if ((min_uV > 1300000) && (max_uV >= 1350000))
818 vsel = 58;
819 else
820 return -EINVAL;
821 break;
822 case SMPS_EXTENDED_EN:
823 if (min_uV == 0) {
824 vsel = 0;
825 } else if ((min_uV >= 1852000) && (max_uV <= 4013600)) {
826 vsel = DIV_ROUND_UP(min_uV - 1852000, 38600);
827 vsel++;
828 }
829 break;
830 case SMPS_OFFSET_EN|SMPS_EXTENDED_EN:
831 if (min_uV == 0) {
832 vsel = 0;
833 } else if ((min_uV >= 2161000) && (max_uV <= 4321000)) {
834 vsel = DIV_ROUND_UP(min_uV - 2161000, 38600);
835 vsel++;
836 }
837 break;
838 }
839
840 *selector = vsel;
841
842 return twlreg_write(info, TWL_MODULE_PM_RECEIVER, VREG_VOLTAGE_SMPS,
843 vsel);
844}
845
846static int twl6030smps_get_voltage_sel(struct regulator_dev *rdev)
847{
848 struct twlreg_info *info = rdev_get_drvdata(rdev);
849
850 return twlreg_read(info, TWL_MODULE_PM_RECEIVER, VREG_VOLTAGE_SMPS);
851}
852
853static struct regulator_ops twlsmps_ops = {
854 .list_voltage = twl6030smps_list_voltage,
855
856 .set_voltage = twl6030smps_set_voltage,
857 .get_voltage_sel = twl6030smps_get_voltage_sel,
858
859 .enable = twl6030reg_enable,
860 .disable = twl6030reg_disable,
861 .is_enabled = twl6030reg_is_enabled,
862
863 .set_mode = twl6030reg_set_mode,
864
865 .get_status = twl6030reg_get_status,
866};
867
868/*----------------------------------------------------------------------*/
869
870#define TWL4030_FIXED_LDO(label, offset, mVolts, num, turnon_delay, \
871 remap_conf) \
872 TWL_FIXED_LDO(label, offset, mVolts, num, turnon_delay, \
873 remap_conf, TWL4030, twl4030fixed_ops)
874#define TWL6030_FIXED_LDO(label, offset, mVolts, turnon_delay) \
875 TWL_FIXED_LDO(label, offset, mVolts, 0x0, turnon_delay, \
876 0x0, TWL6030, twl6030fixed_ops)
877
878#define TWL4030_ADJUSTABLE_LDO(label, offset, num, turnon_delay, remap_conf) \
879static struct twlreg_info TWL4030_INFO_##label = { \
880 .base = offset, \
881 .id = num, \
882 .table_len = ARRAY_SIZE(label##_VSEL_table), \
883 .table = label##_VSEL_table, \
884 .remap = remap_conf, \
885 .desc = { \
886 .name = #label, \
887 .id = TWL4030_REG_##label, \
888 .n_voltages = ARRAY_SIZE(label##_VSEL_table), \
889 .ops = &twl4030ldo_ops, \
890 .type = REGULATOR_VOLTAGE, \
891 .owner = THIS_MODULE, \
892 .enable_time = turnon_delay, \
893 }, \
894 }
895
896#define TWL4030_ADJUSTABLE_SMPS(label, offset, num, turnon_delay, remap_conf) \
897static struct twlreg_info TWL4030_INFO_##label = { \
898 .base = offset, \
899 .id = num, \
900 .remap = remap_conf, \
901 .desc = { \
902 .name = #label, \
903 .id = TWL4030_REG_##label, \
904 .ops = &twl4030smps_ops, \
905 .type = REGULATOR_VOLTAGE, \
906 .owner = THIS_MODULE, \
907 .enable_time = turnon_delay, \
908 }, \
909 }
910
911#define TWL6030_ADJUSTABLE_SMPS(label) \
912static struct twlreg_info TWL6030_INFO_##label = { \
913 .desc = { \
914 .name = #label, \
915 .id = TWL6030_REG_##label, \
916 .ops = &twl6030coresmps_ops, \
917 .type = REGULATOR_VOLTAGE, \
918 .owner = THIS_MODULE, \
919 }, \
920 }
921
922#define TWL6030_ADJUSTABLE_LDO(label, offset, min_mVolts, max_mVolts) \
923static struct twlreg_info TWL6030_INFO_##label = { \
924 .base = offset, \
925 .min_mV = min_mVolts, \
926 .max_mV = max_mVolts, \
927 .desc = { \
928 .name = #label, \
929 .id = TWL6030_REG_##label, \
930 .n_voltages = 32, \
931 .ops = &twl6030ldo_ops, \
932 .type = REGULATOR_VOLTAGE, \
933 .owner = THIS_MODULE, \
934 }, \
935 }
936
937#define TWL6025_ADJUSTABLE_LDO(label, offset, min_mVolts, max_mVolts) \
938static 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 = 32, \
946 .ops = &twl6030ldo_ops, \
947 .type = REGULATOR_VOLTAGE, \
948 .owner = THIS_MODULE, \
949 }, \
950 }
951
952#define TWL_FIXED_LDO(label, offset, mVolts, num, turnon_delay, remap_conf, \
953 family, operations) \
954static struct twlreg_info TWLFIXED_INFO_##label = { \
955 .base = offset, \
956 .id = num, \
957 .min_mV = mVolts, \
958 .remap = remap_conf, \
959 .desc = { \
960 .name = #label, \
961 .id = family##_REG_##label, \
962 .n_voltages = 1, \
963 .ops = &operations, \
964 .type = REGULATOR_VOLTAGE, \
965 .owner = THIS_MODULE, \
966 .enable_time = turnon_delay, \
967 }, \
968 }
969
970#define TWL6030_FIXED_RESOURCE(label, offset, turnon_delay) \
971static struct twlreg_info TWLRES_INFO_##label = { \
972 .base = offset, \
973 .desc = { \
974 .name = #label, \
975 .id = TWL6030_REG_##label, \
976 .ops = &twl6030_fixed_resource, \
977 .type = REGULATOR_VOLTAGE, \
978 .owner = THIS_MODULE, \
979 .enable_time = turnon_delay, \
980 }, \
981 }
982
983#define TWL6025_ADJUSTABLE_SMPS(label, offset) \
984static struct twlreg_info TWLSMPS_INFO_##label = { \
985 .base = offset, \
986 .min_mV = 600, \
987 .max_mV = 2100, \
988 .desc = { \
989 .name = #label, \
990 .id = TWL6025_REG_##label, \
991 .n_voltages = 63, \
992 .ops = &twlsmps_ops, \
993 .type = REGULATOR_VOLTAGE, \
994 .owner = THIS_MODULE, \
995 }, \
996 }
997
998/*
999 * We list regulators here if systems need some level of
1000 * software control over them after boot.
1001 */
1002TWL4030_ADJUSTABLE_LDO(VAUX1, 0x17, 1, 100, 0x08);
1003TWL4030_ADJUSTABLE_LDO(VAUX2_4030, 0x1b, 2, 100, 0x08);
1004TWL4030_ADJUSTABLE_LDO(VAUX2, 0x1b, 2, 100, 0x08);
1005TWL4030_ADJUSTABLE_LDO(VAUX3, 0x1f, 3, 100, 0x08);
1006TWL4030_ADJUSTABLE_LDO(VAUX4, 0x23, 4, 100, 0x08);
1007TWL4030_ADJUSTABLE_LDO(VMMC1, 0x27, 5, 100, 0x08);
1008TWL4030_ADJUSTABLE_LDO(VMMC2, 0x2b, 6, 100, 0x08);
1009TWL4030_ADJUSTABLE_LDO(VPLL1, 0x2f, 7, 100, 0x00);
1010TWL4030_ADJUSTABLE_LDO(VPLL2, 0x33, 8, 100, 0x08);
1011TWL4030_ADJUSTABLE_LDO(VSIM, 0x37, 9, 100, 0x00);
1012TWL4030_ADJUSTABLE_LDO(VDAC, 0x3b, 10, 100, 0x08);
1013TWL4030_ADJUSTABLE_LDO(VINTANA2, 0x43, 12, 100, 0x08);
1014TWL4030_ADJUSTABLE_LDO(VIO, 0x4b, 14, 1000, 0x08);
1015TWL4030_ADJUSTABLE_SMPS(VDD1, 0x55, 15, 1000, 0x08);
1016TWL4030_ADJUSTABLE_SMPS(VDD2, 0x63, 16, 1000, 0x08);
1017/* VUSBCP is managed *only* by the USB subchip */
1018/* 6030 REG with base as PMC Slave Misc : 0x0030 */
1019/* Turnon-delay and remap configuration values for 6030 are not
1020 verified since the specification is not public */
1021TWL6030_ADJUSTABLE_SMPS(VDD1);
1022TWL6030_ADJUSTABLE_SMPS(VDD2);
1023TWL6030_ADJUSTABLE_SMPS(VDD3);
1024TWL6030_ADJUSTABLE_LDO(VAUX1_6030, 0x54, 1000, 3300);
1025TWL6030_ADJUSTABLE_LDO(VAUX2_6030, 0x58, 1000, 3300);
1026TWL6030_ADJUSTABLE_LDO(VAUX3_6030, 0x5c, 1000, 3300);
1027TWL6030_ADJUSTABLE_LDO(VMMC, 0x68, 1000, 3300);
1028TWL6030_ADJUSTABLE_LDO(VPP, 0x6c, 1000, 3300);
1029TWL6030_ADJUSTABLE_LDO(VUSIM, 0x74, 1000, 3300);
1030/* 6025 are renamed compared to 6030 versions */
1031TWL6025_ADJUSTABLE_LDO(LDO2, 0x54, 1000, 3300);
1032TWL6025_ADJUSTABLE_LDO(LDO4, 0x58, 1000, 3300);
1033TWL6025_ADJUSTABLE_LDO(LDO3, 0x5c, 1000, 3300);
1034TWL6025_ADJUSTABLE_LDO(LDO5, 0x68, 1000, 3300);
1035TWL6025_ADJUSTABLE_LDO(LDO1, 0x6c, 1000, 3300);
1036TWL6025_ADJUSTABLE_LDO(LDO7, 0x74, 1000, 3300);
1037TWL6025_ADJUSTABLE_LDO(LDO6, 0x60, 1000, 3300);
1038TWL6025_ADJUSTABLE_LDO(LDOLN, 0x64, 1000, 3300);
1039TWL6025_ADJUSTABLE_LDO(LDOUSB, 0x70, 1000, 3300);
1040TWL4030_FIXED_LDO(VINTANA1, 0x3f, 1500, 11, 100, 0x08);
1041TWL4030_FIXED_LDO(VINTDIG, 0x47, 1500, 13, 100, 0x08);
1042TWL4030_FIXED_LDO(VUSB1V5, 0x71, 1500, 17, 100, 0x08);
1043TWL4030_FIXED_LDO(VUSB1V8, 0x74, 1800, 18, 100, 0x08);
1044TWL4030_FIXED_LDO(VUSB3V1, 0x77, 3100, 19, 150, 0x08);
1045TWL6030_FIXED_LDO(VANA, 0x50, 2100, 0);
1046TWL6030_FIXED_LDO(VCXIO, 0x60, 1800, 0);
1047TWL6030_FIXED_LDO(VDAC, 0x64, 1800, 0);
1048TWL6030_FIXED_LDO(VUSB, 0x70, 3300, 0);
1049TWL6030_FIXED_LDO(V1V8, 0x16, 1800, 0);
1050TWL6030_FIXED_LDO(V2V1, 0x1c, 2100, 0);
1051TWL6025_ADJUSTABLE_SMPS(SMPS3, 0x34);
1052TWL6025_ADJUSTABLE_SMPS(SMPS4, 0x10);
1053TWL6025_ADJUSTABLE_SMPS(VIO, 0x16);
1054
1055static u8 twl_get_smps_offset(void)
1056{
1057 u8 value;
1058
1059 twl_i2c_read_u8(TWL_MODULE_PM_RECEIVER, &value,
1060 TWL6030_SMPS_OFFSET);
1061 return value;
1062}
1063
1064static u8 twl_get_smps_mult(void)
1065{
1066 u8 value;
1067
1068 twl_i2c_read_u8(TWL_MODULE_PM_RECEIVER, &value,
1069 TWL6030_SMPS_MULT);
1070 return value;
1071}
1072
1073#define TWL_OF_MATCH(comp, family, label) \
1074 { \
1075 .compatible = comp, \
1076 .data = &family##_INFO_##label, \
1077 }
1078
1079#define TWL4030_OF_MATCH(comp, label) TWL_OF_MATCH(comp, TWL4030, label)
1080#define TWL6030_OF_MATCH(comp, label) TWL_OF_MATCH(comp, TWL6030, label)
1081#define TWL6025_OF_MATCH(comp, label) TWL_OF_MATCH(comp, TWL6025, label)
1082#define TWLFIXED_OF_MATCH(comp, label) TWL_OF_MATCH(comp, TWLFIXED, label)
1083#define TWLSMPS_OF_MATCH(comp, label) TWL_OF_MATCH(comp, TWLSMPS, label)
1084
1085static const struct of_device_id twl_of_match[] __devinitconst = {
1086 TWL4030_OF_MATCH("ti,twl4030-vaux1", VAUX1),
1087 TWL4030_OF_MATCH("ti,twl4030-vaux2", VAUX2_4030),
1088 TWL4030_OF_MATCH("ti,twl5030-vaux2", VAUX2),
1089 TWL4030_OF_MATCH("ti,twl4030-vaux3", VAUX3),
1090 TWL4030_OF_MATCH("ti,twl4030-vaux4", VAUX4),
1091 TWL4030_OF_MATCH("ti,twl4030-vmmc1", VMMC1),
1092 TWL4030_OF_MATCH("ti,twl4030-vmmc2", VMMC2),
1093 TWL4030_OF_MATCH("ti,twl4030-vpll1", VPLL1),
1094 TWL4030_OF_MATCH("ti,twl4030-vpll2", VPLL2),
1095 TWL4030_OF_MATCH("ti,twl4030-vsim", VSIM),
1096 TWL4030_OF_MATCH("ti,twl4030-vdac", VDAC),
1097 TWL4030_OF_MATCH("ti,twl4030-vintana2", VINTANA2),
1098 TWL4030_OF_MATCH("ti,twl4030-vio", VIO),
1099 TWL4030_OF_MATCH("ti,twl4030-vdd1", VDD1),
1100 TWL4030_OF_MATCH("ti,twl4030-vdd2", VDD2),
1101 TWL6030_OF_MATCH("ti,twl6030-vdd1", VDD1),
1102 TWL6030_OF_MATCH("ti,twl6030-vdd2", VDD2),
1103 TWL6030_OF_MATCH("ti,twl6030-vdd3", VDD3),
1104 TWL6030_OF_MATCH("ti,twl6030-vaux1", VAUX1_6030),
1105 TWL6030_OF_MATCH("ti,twl6030-vaux2", VAUX2_6030),
1106 TWL6030_OF_MATCH("ti,twl6030-vaux3", VAUX3_6030),
1107 TWL6030_OF_MATCH("ti,twl6030-vmmc", VMMC),
1108 TWL6030_OF_MATCH("ti,twl6030-vpp", VPP),
1109 TWL6030_OF_MATCH("ti,twl6030-vusim", VUSIM),
1110 TWL6025_OF_MATCH("ti,twl6025-ldo2", LDO2),
1111 TWL6025_OF_MATCH("ti,twl6025-ldo4", LDO4),
1112 TWL6025_OF_MATCH("ti,twl6025-ldo3", LDO3),
1113 TWL6025_OF_MATCH("ti,twl6025-ldo5", LDO5),
1114 TWL6025_OF_MATCH("ti,twl6025-ldo1", LDO1),
1115 TWL6025_OF_MATCH("ti,twl6025-ldo7", LDO7),
1116 TWL6025_OF_MATCH("ti,twl6025-ldo6", LDO6),
1117 TWL6025_OF_MATCH("ti,twl6025-ldoln", LDOLN),
1118 TWL6025_OF_MATCH("ti,twl6025-ldousb", LDOUSB),
1119 TWLFIXED_OF_MATCH("ti,twl4030-vintana1", VINTANA1),
1120 TWLFIXED_OF_MATCH("ti,twl4030-vintdig", VINTDIG),
1121 TWLFIXED_OF_MATCH("ti,twl4030-vusb1v5", VUSB1V5),
1122 TWLFIXED_OF_MATCH("ti,twl4030-vusb1v8", VUSB1V8),
1123 TWLFIXED_OF_MATCH("ti,twl4030-vusb3v1", VUSB3V1),
1124 TWLFIXED_OF_MATCH("ti,twl6030-vana", VANA),
1125 TWLFIXED_OF_MATCH("ti,twl6030-vcxio", VCXIO),
1126 TWLFIXED_OF_MATCH("ti,twl6030-vdac", VDAC),
1127 TWLFIXED_OF_MATCH("ti,twl6030-vusb", VUSB),
1128 TWLFIXED_OF_MATCH("ti,twl6030-v1v8", V1V8),
1129 TWLFIXED_OF_MATCH("ti,twl6030-v2v1", V2V1),
1130 TWLSMPS_OF_MATCH("ti,twl6025-smps3", SMPS3),
1131 TWLSMPS_OF_MATCH("ti,twl6025-smps4", SMPS4),
1132 TWLSMPS_OF_MATCH("ti,twl6025-vio", VIO),
1133 {},
1134};
1135MODULE_DEVICE_TABLE(of, twl_of_match);
1136
1137static int __devinit twlreg_probe(struct platform_device *pdev)
1138{
1139 int i, id;
1140 struct twlreg_info *info;
1141 struct regulator_init_data *initdata;
1142 struct regulation_constraints *c;
1143 struct regulator_dev *rdev;
1144 struct twl_regulator_driver_data *drvdata;
1145 const struct of_device_id *match;
1146 struct regulator_config config = { };
1147
1148 match = of_match_device(twl_of_match, &pdev->dev);
1149 if (match) {
1150 info = match->data;
1151 id = info->desc.id;
1152 initdata = of_get_regulator_init_data(&pdev->dev,
1153 pdev->dev.of_node);
1154 drvdata = NULL;
1155 } else {
1156 id = pdev->id;
1157 initdata = pdev->dev.platform_data;
1158 for (i = 0, info = NULL; i < ARRAY_SIZE(twl_of_match); i++) {
1159 info = twl_of_match[i].data;
1160 if (info && info->desc.id == id)
1161 break;
1162 }
1163 if (i == ARRAY_SIZE(twl_of_match))
1164 return -ENODEV;
1165
1166 drvdata = initdata->driver_data;
1167 if (!drvdata)
1168 return -EINVAL;
1169 }
1170
1171 if (!info)
1172 return -ENODEV;
1173
1174 if (!initdata)
1175 return -EINVAL;
1176
1177 if (drvdata) {
1178 /* copy the driver data into regulator data */
1179 info->features = drvdata->features;
1180 info->data = drvdata->data;
1181 info->set_voltage = drvdata->set_voltage;
1182 info->get_voltage = drvdata->get_voltage;
1183 }
1184
1185 /* Constrain board-specific capabilities according to what
1186 * this driver and the chip itself can actually do.
1187 */
1188 c = &initdata->constraints;
1189 c->valid_modes_mask &= REGULATOR_MODE_NORMAL | REGULATOR_MODE_STANDBY;
1190 c->valid_ops_mask &= REGULATOR_CHANGE_VOLTAGE
1191 | REGULATOR_CHANGE_MODE
1192 | REGULATOR_CHANGE_STATUS;
1193 switch (id) {
1194 case TWL4030_REG_VIO:
1195 case TWL4030_REG_VDD1:
1196 case TWL4030_REG_VDD2:
1197 case TWL4030_REG_VPLL1:
1198 case TWL4030_REG_VINTANA1:
1199 case TWL4030_REG_VINTANA2:
1200 case TWL4030_REG_VINTDIG:
1201 c->always_on = true;
1202 break;
1203 default:
1204 break;
1205 }
1206
1207 switch (id) {
1208 case TWL6025_REG_SMPS3:
1209 if (twl_get_smps_mult() & SMPS_MULTOFFSET_SMPS3)
1210 info->flags |= SMPS_EXTENDED_EN;
1211 if (twl_get_smps_offset() & SMPS_MULTOFFSET_SMPS3)
1212 info->flags |= SMPS_OFFSET_EN;
1213 break;
1214 case TWL6025_REG_SMPS4:
1215 if (twl_get_smps_mult() & SMPS_MULTOFFSET_SMPS4)
1216 info->flags |= SMPS_EXTENDED_EN;
1217 if (twl_get_smps_offset() & SMPS_MULTOFFSET_SMPS4)
1218 info->flags |= SMPS_OFFSET_EN;
1219 break;
1220 case TWL6025_REG_VIO:
1221 if (twl_get_smps_mult() & SMPS_MULTOFFSET_VIO)
1222 info->flags |= SMPS_EXTENDED_EN;
1223 if (twl_get_smps_offset() & SMPS_MULTOFFSET_VIO)
1224 info->flags |= SMPS_OFFSET_EN;
1225 break;
1226 }
1227
1228 config.dev = &pdev->dev;
1229 config.init_data = initdata;
1230 config.driver_data = info;
1231 config.of_node = pdev->dev.of_node;
1232
1233 rdev = regulator_register(&info->desc, &config);
1234 if (IS_ERR(rdev)) {
1235 dev_err(&pdev->dev, "can't register %s, %ld\n",
1236 info->desc.name, PTR_ERR(rdev));
1237 return PTR_ERR(rdev);
1238 }
1239 platform_set_drvdata(pdev, rdev);
1240
1241 if (twl_class_is_4030())
1242 twlreg_write(info, TWL_MODULE_PM_RECEIVER, VREG_REMAP,
1243 info->remap);
1244
1245 /* NOTE: many regulators support short-circuit IRQs (presentable
1246 * as REGULATOR_OVER_CURRENT notifications?) configured via:
1247 * - SC_CONFIG
1248 * - SC_DETECT1 (vintana2, vmmc1/2, vaux1/2/3/4)
1249 * - SC_DETECT2 (vusb, vdac, vio, vdd1/2, vpll2)
1250 * - IT_CONFIG
1251 */
1252
1253 return 0;
1254}
1255
1256static int __devexit twlreg_remove(struct platform_device *pdev)
1257{
1258 regulator_unregister(platform_get_drvdata(pdev));
1259 return 0;
1260}
1261
1262MODULE_ALIAS("platform:twl_reg");
1263
1264static struct platform_driver twlreg_driver = {
1265 .probe = twlreg_probe,
1266 .remove = __devexit_p(twlreg_remove),
1267 /* NOTE: short name, to work around driver model truncation of
1268 * "twl_regulator.12" (and friends) to "twl_regulator.1".
1269 */
1270 .driver = {
1271 .name = "twl_reg",
1272 .owner = THIS_MODULE,
1273 .of_match_table = of_match_ptr(twl_of_match),
1274 },
1275};
1276
1277static int __init twlreg_init(void)
1278{
1279 return platform_driver_register(&twlreg_driver);
1280}
1281subsys_initcall(twlreg_init);
1282
1283static void __exit twlreg_exit(void)
1284{
1285 platform_driver_unregister(&twlreg_driver);
1286}
1287module_exit(twlreg_exit)
1288
1289MODULE_DESCRIPTION("TWL regulator driver");
1290MODULE_LICENSE("GPL");
kernel source for telekom puls (alcatel/mediatek)