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regulator: twl: Remove references to 32kHz clock from DT bindings
[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 /* regulator specific turn-on delay */
47 u16 delay;
48
49 /* State REMAP default configuration */
50 u8 remap;
51
52 /* chip constraints on regulator behavior */
53 u16 min_mV;
54 u16 max_mV;
55
56 u8 flags;
57
58 /* used by regulator core */
59 struct regulator_desc desc;
60
61 /* chip specific features */
62 unsigned long features;
63
64 /*
65 * optional override functions for voltage set/get
66 * these are currently only used for SMPS regulators
67 */
68 int (*get_voltage)(void *data);
69 int (*set_voltage)(void *data, int target_uV);
70
71 /* data passed from board for external get/set voltage */
72 void *data;
73 };
74
75
76 /* LDO control registers ... offset is from the base of its register bank.
77 * The first three registers of all power resource banks help hardware to
78 * manage the various resource groups.
79 */
80 /* Common offset in TWL4030/6030 */
81 #define VREG_GRP 0
82 /* TWL4030 register offsets */
83 #define VREG_TYPE 1
84 #define VREG_REMAP 2
85 #define VREG_DEDICATED 3 /* LDO control */
86 #define VREG_VOLTAGE_SMPS_4030 9
87 /* TWL6030 register offsets */
88 #define VREG_TRANS 1
89 #define VREG_STATE 2
90 #define VREG_VOLTAGE 3
91 #define VREG_VOLTAGE_SMPS 4
92 /* TWL6030 Misc register offsets */
93 #define VREG_BC_ALL 1
94 #define VREG_BC_REF 2
95 #define VREG_BC_PROC 3
96 #define VREG_BC_CLK_RST 4
97
98 /* TWL6030 LDO register values for CFG_STATE */
99 #define TWL6030_CFG_STATE_OFF 0x00
100 #define TWL6030_CFG_STATE_ON 0x01
101 #define TWL6030_CFG_STATE_OFF2 0x02
102 #define TWL6030_CFG_STATE_SLEEP 0x03
103 #define TWL6030_CFG_STATE_GRP_SHIFT 5
104 #define TWL6030_CFG_STATE_APP_SHIFT 2
105 #define TWL6030_CFG_STATE_APP_MASK (0x03 << TWL6030_CFG_STATE_APP_SHIFT)
106 #define TWL6030_CFG_STATE_APP(v) (((v) & TWL6030_CFG_STATE_APP_MASK) >>\
107 TWL6030_CFG_STATE_APP_SHIFT)
108
109 /* Flags for SMPS Voltage reading */
110 #define SMPS_OFFSET_EN BIT(0)
111 #define SMPS_EXTENDED_EN BIT(1)
112
113 /* twl6025 SMPS EPROM values */
114 #define TWL6030_SMPS_OFFSET 0xB0
115 #define TWL6030_SMPS_MULT 0xB3
116 #define SMPS_MULTOFFSET_SMPS4 BIT(0)
117 #define SMPS_MULTOFFSET_VIO BIT(1)
118 #define SMPS_MULTOFFSET_SMPS3 BIT(6)
119
120 static inline int
121 twlreg_read(struct twlreg_info *info, unsigned slave_subgp, unsigned offset)
122 {
123 u8 value;
124 int status;
125
126 status = twl_i2c_read_u8(slave_subgp,
127 &value, info->base + offset);
128 return (status < 0) ? status : value;
129 }
130
131 static inline int
132 twlreg_write(struct twlreg_info *info, unsigned slave_subgp, unsigned offset,
133 u8 value)
134 {
135 return twl_i2c_write_u8(slave_subgp,
136 value, info->base + offset);
137 }
138
139 /*----------------------------------------------------------------------*/
140
141 /* generic power resource operations, which work on all regulators */
142
143 static int twlreg_grp(struct regulator_dev *rdev)
144 {
145 return twlreg_read(rdev_get_drvdata(rdev), TWL_MODULE_PM_RECEIVER,
146 VREG_GRP);
147 }
148
149 /*
150 * Enable/disable regulators by joining/leaving the P1 (processor) group.
151 * We assume nobody else is updating the DEV_GRP registers.
152 */
153 /* definition for 4030 family */
154 #define P3_GRP_4030 BIT(7) /* "peripherals" */
155 #define P2_GRP_4030 BIT(6) /* secondary processor, modem, etc */
156 #define P1_GRP_4030 BIT(5) /* CPU/Linux */
157 /* definition for 6030 family */
158 #define P3_GRP_6030 BIT(2) /* secondary processor, modem, etc */
159 #define P2_GRP_6030 BIT(1) /* "peripherals" */
160 #define P1_GRP_6030 BIT(0) /* CPU/Linux */
161
162 static int twl4030reg_is_enabled(struct regulator_dev *rdev)
163 {
164 int state = twlreg_grp(rdev);
165
166 if (state < 0)
167 return state;
168
169 return state & P1_GRP_4030;
170 }
171
172 static int twl6030reg_is_enabled(struct regulator_dev *rdev)
173 {
174 struct twlreg_info *info = rdev_get_drvdata(rdev);
175 int grp = 0, val;
176
177 if (!(twl_class_is_6030() && (info->features & TWL6025_SUBCLASS))) {
178 grp = twlreg_grp(rdev);
179 if (grp < 0)
180 return grp;
181 grp &= P1_GRP_6030;
182 } else {
183 grp = 1;
184 }
185
186 val = twlreg_read(info, TWL_MODULE_PM_RECEIVER, VREG_STATE);
187 val = TWL6030_CFG_STATE_APP(val);
188
189 return grp && (val == TWL6030_CFG_STATE_ON);
190 }
191
192 static int twl4030reg_enable(struct regulator_dev *rdev)
193 {
194 struct twlreg_info *info = rdev_get_drvdata(rdev);
195 int grp;
196 int ret;
197
198 grp = twlreg_grp(rdev);
199 if (grp < 0)
200 return grp;
201
202 grp |= P1_GRP_4030;
203
204 ret = twlreg_write(info, TWL_MODULE_PM_RECEIVER, VREG_GRP, grp);
205
206 return ret;
207 }
208
209 static int twl6030reg_enable(struct regulator_dev *rdev)
210 {
211 struct twlreg_info *info = rdev_get_drvdata(rdev);
212 int grp = 0;
213 int ret;
214
215 if (!(twl_class_is_6030() && (info->features & TWL6025_SUBCLASS)))
216 grp = twlreg_grp(rdev);
217 if (grp < 0)
218 return grp;
219
220 ret = twlreg_write(info, TWL_MODULE_PM_RECEIVER, VREG_STATE,
221 grp << TWL6030_CFG_STATE_GRP_SHIFT |
222 TWL6030_CFG_STATE_ON);
223 return ret;
224 }
225
226 static int twl4030reg_enable_time(struct regulator_dev *rdev)
227 {
228 struct twlreg_info *info = rdev_get_drvdata(rdev);
229
230 return info->delay;
231 }
232
233 static int twl6030reg_enable_time(struct regulator_dev *rdev)
234 {
235 struct twlreg_info *info = rdev_get_drvdata(rdev);
236
237 return info->delay;
238 }
239
240 static int twl4030reg_disable(struct regulator_dev *rdev)
241 {
242 struct twlreg_info *info = rdev_get_drvdata(rdev);
243 int grp;
244 int ret;
245
246 grp = twlreg_grp(rdev);
247 if (grp < 0)
248 return grp;
249
250 grp &= ~(P1_GRP_4030 | P2_GRP_4030 | P3_GRP_4030);
251
252 ret = twlreg_write(info, TWL_MODULE_PM_RECEIVER, VREG_GRP, grp);
253
254 return ret;
255 }
256
257 static int twl6030reg_disable(struct regulator_dev *rdev)
258 {
259 struct twlreg_info *info = rdev_get_drvdata(rdev);
260 int grp = 0;
261 int ret;
262
263 if (!(twl_class_is_6030() && (info->features & TWL6025_SUBCLASS)))
264 grp = P1_GRP_6030 | P2_GRP_6030 | P3_GRP_6030;
265
266 /* For 6030, set the off state for all grps enabled */
267 ret = twlreg_write(info, TWL_MODULE_PM_RECEIVER, VREG_STATE,
268 (grp) << TWL6030_CFG_STATE_GRP_SHIFT |
269 TWL6030_CFG_STATE_OFF);
270
271 return ret;
272 }
273
274 static int twl4030reg_get_status(struct regulator_dev *rdev)
275 {
276 int state = twlreg_grp(rdev);
277
278 if (state < 0)
279 return state;
280 state &= 0x0f;
281
282 /* assume state != WARM_RESET; we'd not be running... */
283 if (!state)
284 return REGULATOR_STATUS_OFF;
285 return (state & BIT(3))
286 ? REGULATOR_STATUS_NORMAL
287 : REGULATOR_STATUS_STANDBY;
288 }
289
290 static int twl6030reg_get_status(struct regulator_dev *rdev)
291 {
292 struct twlreg_info *info = rdev_get_drvdata(rdev);
293 int val;
294
295 val = twlreg_grp(rdev);
296 if (val < 0)
297 return val;
298
299 val = twlreg_read(info, TWL_MODULE_PM_RECEIVER, VREG_STATE);
300
301 switch (TWL6030_CFG_STATE_APP(val)) {
302 case TWL6030_CFG_STATE_ON:
303 return REGULATOR_STATUS_NORMAL;
304
305 case TWL6030_CFG_STATE_SLEEP:
306 return REGULATOR_STATUS_STANDBY;
307
308 case TWL6030_CFG_STATE_OFF:
309 case TWL6030_CFG_STATE_OFF2:
310 default:
311 break;
312 }
313
314 return REGULATOR_STATUS_OFF;
315 }
316
317 static int twl4030reg_set_mode(struct regulator_dev *rdev, unsigned mode)
318 {
319 struct twlreg_info *info = rdev_get_drvdata(rdev);
320 unsigned message;
321 int status;
322
323 /* We can only set the mode through state machine commands... */
324 switch (mode) {
325 case REGULATOR_MODE_NORMAL:
326 message = MSG_SINGULAR(DEV_GRP_P1, info->id, RES_STATE_ACTIVE);
327 break;
328 case REGULATOR_MODE_STANDBY:
329 message = MSG_SINGULAR(DEV_GRP_P1, info->id, RES_STATE_SLEEP);
330 break;
331 default:
332 return -EINVAL;
333 }
334
335 /* Ensure the resource is associated with some group */
336 status = twlreg_grp(rdev);
337 if (status < 0)
338 return status;
339 if (!(status & (P3_GRP_4030 | P2_GRP_4030 | P1_GRP_4030)))
340 return -EACCES;
341
342 status = twl_i2c_write_u8(TWL_MODULE_PM_MASTER,
343 message >> 8, TWL4030_PM_MASTER_PB_WORD_MSB);
344 if (status < 0)
345 return status;
346
347 return twl_i2c_write_u8(TWL_MODULE_PM_MASTER,
348 message & 0xff, TWL4030_PM_MASTER_PB_WORD_LSB);
349 }
350
351 static int twl6030reg_set_mode(struct regulator_dev *rdev, unsigned mode)
352 {
353 struct twlreg_info *info = rdev_get_drvdata(rdev);
354 int grp = 0;
355 int val;
356
357 if (!(twl_class_is_6030() && (info->features & TWL6025_SUBCLASS)))
358 grp = twlreg_grp(rdev);
359
360 if (grp < 0)
361 return grp;
362
363 /* Compose the state register settings */
364 val = grp << TWL6030_CFG_STATE_GRP_SHIFT;
365 /* We can only set the mode through state machine commands... */
366 switch (mode) {
367 case REGULATOR_MODE_NORMAL:
368 val |= TWL6030_CFG_STATE_ON;
369 break;
370 case REGULATOR_MODE_STANDBY:
371 val |= TWL6030_CFG_STATE_SLEEP;
372 break;
373
374 default:
375 return -EINVAL;
376 }
377
378 return twlreg_write(info, TWL_MODULE_PM_RECEIVER, VREG_STATE, val);
379 }
380
381 /*----------------------------------------------------------------------*/
382
383 /*
384 * Support for adjustable-voltage LDOs uses a four bit (or less) voltage
385 * select field in its control register. We use tables indexed by VSEL
386 * to record voltages in milliVolts. (Accuracy is about three percent.)
387 *
388 * Note that VSEL values for VAUX2 changed in twl5030 and newer silicon;
389 * currently handled by listing two slightly different VAUX2 regulators,
390 * only one of which will be configured.
391 *
392 * VSEL values documented as "TI cannot support these values" are flagged
393 * in these tables as UNSUP() values; we normally won't assign them.
394 *
395 * VAUX3 at 3V is incorrectly listed in some TI manuals as unsupported.
396 * TI are revising the twl5030/tps659x0 specs to support that 3.0V setting.
397 */
398 #define UNSUP_MASK 0x8000
399
400 #define UNSUP(x) (UNSUP_MASK | (x))
401 #define IS_UNSUP(info, x) \
402 ((UNSUP_MASK & (x)) && \
403 !((info)->features & TWL4030_ALLOW_UNSUPPORTED))
404 #define LDO_MV(x) (~UNSUP_MASK & (x))
405
406
407 static const u16 VAUX1_VSEL_table[] = {
408 UNSUP(1500), UNSUP(1800), 2500, 2800,
409 3000, 3000, 3000, 3000,
410 };
411 static const u16 VAUX2_4030_VSEL_table[] = {
412 UNSUP(1000), UNSUP(1000), UNSUP(1200), 1300,
413 1500, 1800, UNSUP(1850), 2500,
414 UNSUP(2600), 2800, UNSUP(2850), UNSUP(3000),
415 UNSUP(3150), UNSUP(3150), UNSUP(3150), UNSUP(3150),
416 };
417 static const u16 VAUX2_VSEL_table[] = {
418 1700, 1700, 1900, 1300,
419 1500, 1800, 2000, 2500,
420 2100, 2800, 2200, 2300,
421 2400, 2400, 2400, 2400,
422 };
423 static const u16 VAUX3_VSEL_table[] = {
424 1500, 1800, 2500, 2800,
425 3000, 3000, 3000, 3000,
426 };
427 static const u16 VAUX4_VSEL_table[] = {
428 700, 1000, 1200, UNSUP(1300),
429 1500, 1800, UNSUP(1850), 2500,
430 UNSUP(2600), 2800, UNSUP(2850), UNSUP(3000),
431 UNSUP(3150), UNSUP(3150), UNSUP(3150), UNSUP(3150),
432 };
433 static const u16 VMMC1_VSEL_table[] = {
434 1850, 2850, 3000, 3150,
435 };
436 static const u16 VMMC2_VSEL_table[] = {
437 UNSUP(1000), UNSUP(1000), UNSUP(1200), UNSUP(1300),
438 UNSUP(1500), UNSUP(1800), 1850, UNSUP(2500),
439 2600, 2800, 2850, 3000,
440 3150, 3150, 3150, 3150,
441 };
442 static const u16 VPLL1_VSEL_table[] = {
443 1000, 1200, 1300, 1800,
444 UNSUP(2800), UNSUP(3000), UNSUP(3000), UNSUP(3000),
445 };
446 static const u16 VPLL2_VSEL_table[] = {
447 700, 1000, 1200, 1300,
448 UNSUP(1500), 1800, UNSUP(1850), UNSUP(2500),
449 UNSUP(2600), UNSUP(2800), UNSUP(2850), UNSUP(3000),
450 UNSUP(3150), UNSUP(3150), UNSUP(3150), UNSUP(3150),
451 };
452 static const u16 VSIM_VSEL_table[] = {
453 UNSUP(1000), UNSUP(1200), UNSUP(1300), 1800,
454 2800, 3000, 3000, 3000,
455 };
456 static const u16 VDAC_VSEL_table[] = {
457 1200, 1300, 1800, 1800,
458 };
459 static const u16 VDD1_VSEL_table[] = {
460 800, 1450,
461 };
462 static const u16 VDD2_VSEL_table[] = {
463 800, 1450, 1500,
464 };
465 static const u16 VIO_VSEL_table[] = {
466 1800, 1850,
467 };
468 static const u16 VINTANA2_VSEL_table[] = {
469 2500, 2750,
470 };
471
472 static int twl4030ldo_list_voltage(struct regulator_dev *rdev, unsigned index)
473 {
474 struct twlreg_info *info = rdev_get_drvdata(rdev);
475 int mV = info->table[index];
476
477 return IS_UNSUP(info, mV) ? 0 : (LDO_MV(mV) * 1000);
478 }
479
480 static int
481 twl4030ldo_set_voltage_sel(struct regulator_dev *rdev, unsigned selector)
482 {
483 struct twlreg_info *info = rdev_get_drvdata(rdev);
484
485 return twlreg_write(info, TWL_MODULE_PM_RECEIVER, VREG_VOLTAGE,
486 selector);
487 }
488
489 static int twl4030ldo_get_voltage(struct regulator_dev *rdev)
490 {
491 struct twlreg_info *info = rdev_get_drvdata(rdev);
492 int vsel = twlreg_read(info, TWL_MODULE_PM_RECEIVER,
493 VREG_VOLTAGE);
494
495 if (vsel < 0)
496 return vsel;
497
498 vsel &= info->table_len - 1;
499 return LDO_MV(info->table[vsel]) * 1000;
500 }
501
502 static struct regulator_ops twl4030ldo_ops = {
503 .list_voltage = twl4030ldo_list_voltage,
504
505 .set_voltage_sel = twl4030ldo_set_voltage_sel,
506 .get_voltage = twl4030ldo_get_voltage,
507
508 .enable = twl4030reg_enable,
509 .disable = twl4030reg_disable,
510 .is_enabled = twl4030reg_is_enabled,
511 .enable_time = twl4030reg_enable_time,
512
513 .set_mode = twl4030reg_set_mode,
514
515 .get_status = twl4030reg_get_status,
516 };
517
518 static int
519 twl4030smps_set_voltage(struct regulator_dev *rdev, int min_uV, int max_uV,
520 unsigned *selector)
521 {
522 struct twlreg_info *info = rdev_get_drvdata(rdev);
523 int vsel = DIV_ROUND_UP(min_uV - 600000, 12500);
524
525 if (info->set_voltage) {
526 return info->set_voltage(info->data, min_uV);
527 } else {
528 twlreg_write(info, TWL_MODULE_PM_RECEIVER,
529 VREG_VOLTAGE_SMPS_4030, vsel);
530 }
531
532 return 0;
533 }
534
535 static int twl4030smps_get_voltage(struct regulator_dev *rdev)
536 {
537 struct twlreg_info *info = rdev_get_drvdata(rdev);
538 int vsel;
539
540 if (info->get_voltage)
541 return info->get_voltage(info->data);
542
543 vsel = twlreg_read(info, TWL_MODULE_PM_RECEIVER,
544 VREG_VOLTAGE_SMPS_4030);
545
546 return vsel * 12500 + 600000;
547 }
548
549 static struct regulator_ops twl4030smps_ops = {
550 .set_voltage = twl4030smps_set_voltage,
551 .get_voltage = twl4030smps_get_voltage,
552 };
553
554 static int twl6030coresmps_set_voltage(struct regulator_dev *rdev, int min_uV,
555 int max_uV, unsigned *selector)
556 {
557 struct twlreg_info *info = rdev_get_drvdata(rdev);
558
559 if (info->set_voltage)
560 return info->set_voltage(info->data, min_uV);
561
562 return -ENODEV;
563 }
564
565 static int twl6030coresmps_get_voltage(struct regulator_dev *rdev)
566 {
567 struct twlreg_info *info = rdev_get_drvdata(rdev);
568
569 if (info->get_voltage)
570 return info->get_voltage(info->data);
571
572 return -ENODEV;
573 }
574
575 static struct regulator_ops twl6030coresmps_ops = {
576 .set_voltage = twl6030coresmps_set_voltage,
577 .get_voltage = twl6030coresmps_get_voltage,
578 };
579
580 static int
581 twl6030ldo_set_voltage(struct regulator_dev *rdev, int min_uV, int max_uV,
582 unsigned *selector)
583 {
584 struct twlreg_info *info = rdev_get_drvdata(rdev);
585 int vsel;
586
587 if ((min_uV/1000 < info->min_mV) || (max_uV/1000 > info->max_mV))
588 return -EDOM;
589
590 /*
591 * Use the below formula to calculate vsel
592 * mV = 1000mv + 100mv * (vsel - 1)
593 */
594 vsel = (min_uV/1000 - 1000)/100 + 1;
595 *selector = vsel;
596 return twlreg_write(info, TWL_MODULE_PM_RECEIVER, VREG_VOLTAGE, vsel);
597
598 }
599
600 static int twl6030ldo_get_voltage(struct regulator_dev *rdev)
601 {
602 struct twlreg_info *info = rdev_get_drvdata(rdev);
603 int vsel = twlreg_read(info, TWL_MODULE_PM_RECEIVER,
604 VREG_VOLTAGE);
605
606 if (vsel < 0)
607 return vsel;
608
609 /*
610 * Use the below formula to calculate vsel
611 * mV = 1000mv + 100mv * (vsel - 1)
612 */
613 return (1000 + (100 * (vsel - 1))) * 1000;
614 }
615
616 static struct regulator_ops twl6030ldo_ops = {
617 .list_voltage = regulator_list_voltage_linear,
618
619 .set_voltage = twl6030ldo_set_voltage,
620 .get_voltage = twl6030ldo_get_voltage,
621
622 .enable = twl6030reg_enable,
623 .disable = twl6030reg_disable,
624 .is_enabled = twl6030reg_is_enabled,
625 .enable_time = twl6030reg_enable_time,
626
627 .set_mode = twl6030reg_set_mode,
628
629 .get_status = twl6030reg_get_status,
630 };
631
632 /*----------------------------------------------------------------------*/
633
634 /*
635 * Fixed voltage LDOs don't have a VSEL field to update.
636 */
637 static int twlfixed_list_voltage(struct regulator_dev *rdev, unsigned index)
638 {
639 struct twlreg_info *info = rdev_get_drvdata(rdev);
640
641 return info->min_mV * 1000;
642 }
643
644 static int twlfixed_get_voltage(struct regulator_dev *rdev)
645 {
646 struct twlreg_info *info = rdev_get_drvdata(rdev);
647
648 return info->min_mV * 1000;
649 }
650
651 static struct regulator_ops twl4030fixed_ops = {
652 .list_voltage = twlfixed_list_voltage,
653
654 .get_voltage = twlfixed_get_voltage,
655
656 .enable = twl4030reg_enable,
657 .disable = twl4030reg_disable,
658 .is_enabled = twl4030reg_is_enabled,
659 .enable_time = twl4030reg_enable_time,
660
661 .set_mode = twl4030reg_set_mode,
662
663 .get_status = twl4030reg_get_status,
664 };
665
666 static struct regulator_ops twl6030fixed_ops = {
667 .list_voltage = twlfixed_list_voltage,
668
669 .get_voltage = twlfixed_get_voltage,
670
671 .enable = twl6030reg_enable,
672 .disable = twl6030reg_disable,
673 .is_enabled = twl6030reg_is_enabled,
674 .enable_time = twl6030reg_enable_time,
675
676 .set_mode = twl6030reg_set_mode,
677
678 .get_status = twl6030reg_get_status,
679 };
680
681 static struct regulator_ops twl6030_fixed_resource = {
682 .enable = twl6030reg_enable,
683 .disable = twl6030reg_disable,
684 .is_enabled = twl6030reg_is_enabled,
685 .enable_time = twl6030reg_enable_time,
686 .get_status = twl6030reg_get_status,
687 };
688
689 /*
690 * SMPS status and control
691 */
692
693 static int twl6030smps_list_voltage(struct regulator_dev *rdev, unsigned index)
694 {
695 struct twlreg_info *info = rdev_get_drvdata(rdev);
696
697 int voltage = 0;
698
699 switch (info->flags) {
700 case SMPS_OFFSET_EN:
701 voltage = 100000;
702 /* fall through */
703 case 0:
704 switch (index) {
705 case 0:
706 voltage = 0;
707 break;
708 case 58:
709 voltage = 1350 * 1000;
710 break;
711 case 59:
712 voltage = 1500 * 1000;
713 break;
714 case 60:
715 voltage = 1800 * 1000;
716 break;
717 case 61:
718 voltage = 1900 * 1000;
719 break;
720 case 62:
721 voltage = 2100 * 1000;
722 break;
723 default:
724 voltage += (600000 + (12500 * (index - 1)));
725 }
726 break;
727 case SMPS_EXTENDED_EN:
728 switch (index) {
729 case 0:
730 voltage = 0;
731 break;
732 case 58:
733 voltage = 2084 * 1000;
734 break;
735 case 59:
736 voltage = 2315 * 1000;
737 break;
738 case 60:
739 voltage = 2778 * 1000;
740 break;
741 case 61:
742 voltage = 2932 * 1000;
743 break;
744 case 62:
745 voltage = 3241 * 1000;
746 break;
747 default:
748 voltage = (1852000 + (38600 * (index - 1)));
749 }
750 break;
751 case SMPS_OFFSET_EN | SMPS_EXTENDED_EN:
752 switch (index) {
753 case 0:
754 voltage = 0;
755 break;
756 case 58:
757 voltage = 4167 * 1000;
758 break;
759 case 59:
760 voltage = 2315 * 1000;
761 break;
762 case 60:
763 voltage = 2778 * 1000;
764 break;
765 case 61:
766 voltage = 2932 * 1000;
767 break;
768 case 62:
769 voltage = 3241 * 1000;
770 break;
771 default:
772 voltage = (2161000 + (38600 * (index - 1)));
773 }
774 break;
775 }
776
777 return voltage;
778 }
779
780 static int
781 twl6030smps_set_voltage(struct regulator_dev *rdev, int min_uV, int max_uV,
782 unsigned int *selector)
783 {
784 struct twlreg_info *info = rdev_get_drvdata(rdev);
785 int vsel = 0;
786
787 switch (info->flags) {
788 case 0:
789 if (min_uV == 0)
790 vsel = 0;
791 else if ((min_uV >= 600000) && (min_uV <= 1300000)) {
792 int calc_uV;
793 vsel = DIV_ROUND_UP(min_uV - 600000, 12500);
794 vsel++;
795 calc_uV = twl6030smps_list_voltage(rdev, vsel);
796 if (calc_uV > max_uV)
797 return -EINVAL;
798 }
799 /* Values 1..57 for vsel are linear and can be calculated
800 * values 58..62 are non linear.
801 */
802 else if ((min_uV > 1900000) && (max_uV >= 2100000))
803 vsel = 62;
804 else if ((min_uV > 1800000) && (max_uV >= 1900000))
805 vsel = 61;
806 else if ((min_uV > 1500000) && (max_uV >= 1800000))
807 vsel = 60;
808 else if ((min_uV > 1350000) && (max_uV >= 1500000))
809 vsel = 59;
810 else if ((min_uV > 1300000) && (max_uV >= 1350000))
811 vsel = 58;
812 else
813 return -EINVAL;
814 break;
815 case SMPS_OFFSET_EN:
816 if (min_uV == 0)
817 vsel = 0;
818 else if ((min_uV >= 700000) && (min_uV <= 1420000)) {
819 int calc_uV;
820 vsel = DIV_ROUND_UP(min_uV - 700000, 12500);
821 vsel++;
822 calc_uV = twl6030smps_list_voltage(rdev, vsel);
823 if (calc_uV > max_uV)
824 return -EINVAL;
825 }
826 /* Values 1..57 for vsel are linear and can be calculated
827 * values 58..62 are non linear.
828 */
829 else if ((min_uV > 1900000) && (max_uV >= 2100000))
830 vsel = 62;
831 else if ((min_uV > 1800000) && (max_uV >= 1900000))
832 vsel = 61;
833 else if ((min_uV > 1350000) && (max_uV >= 1800000))
834 vsel = 60;
835 else if ((min_uV > 1350000) && (max_uV >= 1500000))
836 vsel = 59;
837 else if ((min_uV > 1300000) && (max_uV >= 1350000))
838 vsel = 58;
839 else
840 return -EINVAL;
841 break;
842 case SMPS_EXTENDED_EN:
843 if (min_uV == 0) {
844 vsel = 0;
845 } else if ((min_uV >= 1852000) && (max_uV <= 4013600)) {
846 vsel = DIV_ROUND_UP(min_uV - 1852000, 38600);
847 vsel++;
848 }
849 break;
850 case SMPS_OFFSET_EN|SMPS_EXTENDED_EN:
851 if (min_uV == 0) {
852 vsel = 0;
853 } else if ((min_uV >= 2161000) && (max_uV <= 4321000)) {
854 vsel = DIV_ROUND_UP(min_uV - 2161000, 38600);
855 vsel++;
856 }
857 break;
858 }
859
860 *selector = vsel;
861
862 return twlreg_write(info, TWL_MODULE_PM_RECEIVER, VREG_VOLTAGE_SMPS,
863 vsel);
864 }
865
866 static int twl6030smps_get_voltage_sel(struct regulator_dev *rdev)
867 {
868 struct twlreg_info *info = rdev_get_drvdata(rdev);
869
870 return twlreg_read(info, TWL_MODULE_PM_RECEIVER, VREG_VOLTAGE_SMPS);
871 }
872
873 static struct regulator_ops twlsmps_ops = {
874 .list_voltage = twl6030smps_list_voltage,
875
876 .set_voltage = twl6030smps_set_voltage,
877 .get_voltage_sel = twl6030smps_get_voltage_sel,
878
879 .enable = twl6030reg_enable,
880 .disable = twl6030reg_disable,
881 .is_enabled = twl6030reg_is_enabled,
882 .enable_time = twl6030reg_enable_time,
883
884 .set_mode = twl6030reg_set_mode,
885
886 .get_status = twl6030reg_get_status,
887 };
888
889 /*----------------------------------------------------------------------*/
890
891 #define TWL4030_FIXED_LDO(label, offset, mVolts, num, turnon_delay, \
892 remap_conf) \
893 TWL_FIXED_LDO(label, offset, mVolts, num, turnon_delay, \
894 remap_conf, TWL4030, twl4030fixed_ops)
895 #define TWL6030_FIXED_LDO(label, offset, mVolts, turnon_delay) \
896 TWL_FIXED_LDO(label, offset, mVolts, 0x0, turnon_delay, \
897 0x0, TWL6030, twl6030fixed_ops)
898
899 #define TWL4030_ADJUSTABLE_LDO(label, offset, num, turnon_delay, remap_conf) \
900 static struct twlreg_info TWL4030_INFO_##label = { \
901 .base = offset, \
902 .id = num, \
903 .table_len = ARRAY_SIZE(label##_VSEL_table), \
904 .table = label##_VSEL_table, \
905 .delay = turnon_delay, \
906 .remap = remap_conf, \
907 .desc = { \
908 .name = #label, \
909 .id = TWL4030_REG_##label, \
910 .n_voltages = ARRAY_SIZE(label##_VSEL_table), \
911 .ops = &twl4030ldo_ops, \
912 .type = REGULATOR_VOLTAGE, \
913 .owner = THIS_MODULE, \
914 }, \
915 }
916
917 #define TWL4030_ADJUSTABLE_SMPS(label, offset, num, turnon_delay, remap_conf) \
918 static struct twlreg_info TWL4030_INFO_##label = { \
919 .base = offset, \
920 .id = num, \
921 .delay = turnon_delay, \
922 .remap = remap_conf, \
923 .desc = { \
924 .name = #label, \
925 .id = TWL4030_REG_##label, \
926 .ops = &twl4030smps_ops, \
927 .type = REGULATOR_VOLTAGE, \
928 .owner = THIS_MODULE, \
929 }, \
930 }
931
932 #define TWL6030_ADJUSTABLE_SMPS(label) \
933 static struct twlreg_info TWL6030_INFO_##label = { \
934 .desc = { \
935 .name = #label, \
936 .id = TWL6030_REG_##label, \
937 .ops = &twl6030coresmps_ops, \
938 .type = REGULATOR_VOLTAGE, \
939 .owner = THIS_MODULE, \
940 }, \
941 }
942
943 #define TWL6030_ADJUSTABLE_LDO(label, offset, min_mVolts, max_mVolts) \
944 static struct twlreg_info TWL6030_INFO_##label = { \
945 .base = offset, \
946 .min_mV = min_mVolts, \
947 .max_mV = max_mVolts, \
948 .desc = { \
949 .name = #label, \
950 .id = TWL6030_REG_##label, \
951 .n_voltages = (max_mVolts - min_mVolts)/100 + 1, \
952 .ops = &twl6030ldo_ops, \
953 .type = REGULATOR_VOLTAGE, \
954 .owner = THIS_MODULE, \
955 .min_uV = min_mVolts * 1000, \
956 .uV_step = 100 * 1000, \
957 }, \
958 }
959
960 #define TWL6025_ADJUSTABLE_LDO(label, offset, min_mVolts, max_mVolts) \
961 static struct twlreg_info TWL6025_INFO_##label = { \
962 .base = offset, \
963 .min_mV = min_mVolts, \
964 .max_mV = max_mVolts, \
965 .desc = { \
966 .name = #label, \
967 .id = TWL6025_REG_##label, \
968 .n_voltages = ((max_mVolts - min_mVolts)/100) + 1, \
969 .ops = &twl6030ldo_ops, \
970 .type = REGULATOR_VOLTAGE, \
971 .owner = THIS_MODULE, \
972 .min_uV = min_mVolts * 1000, \
973 .uV_step = 100 * 1000, \
974 }, \
975 }
976
977 #define TWL_FIXED_LDO(label, offset, mVolts, num, turnon_delay, remap_conf, \
978 family, operations) \
979 static struct twlreg_info TWLFIXED_INFO_##label = { \
980 .base = offset, \
981 .id = num, \
982 .min_mV = mVolts, \
983 .delay = turnon_delay, \
984 .remap = remap_conf, \
985 .desc = { \
986 .name = #label, \
987 .id = family##_REG_##label, \
988 .n_voltages = 1, \
989 .ops = &operations, \
990 .type = REGULATOR_VOLTAGE, \
991 .owner = THIS_MODULE, \
992 }, \
993 }
994
995 #define TWL6030_FIXED_RESOURCE(label, offset, turnon_delay) \
996 static struct twlreg_info TWLRES_INFO_##label = { \
997 .base = offset, \
998 .delay = turnon_delay, \
999 .desc = { \
1000 .name = #label, \
1001 .id = TWL6030_REG_##label, \
1002 .ops = &twl6030_fixed_resource, \
1003 .type = REGULATOR_VOLTAGE, \
1004 .owner = THIS_MODULE, \
1005 }, \
1006 }
1007
1008 #define TWL6025_ADJUSTABLE_SMPS(label, offset) \
1009 static struct twlreg_info TWLSMPS_INFO_##label = { \
1010 .base = offset, \
1011 .min_mV = 600, \
1012 .max_mV = 2100, \
1013 .desc = { \
1014 .name = #label, \
1015 .id = TWL6025_REG_##label, \
1016 .n_voltages = 63, \
1017 .ops = &twlsmps_ops, \
1018 .type = REGULATOR_VOLTAGE, \
1019 .owner = THIS_MODULE, \
1020 }, \
1021 }
1022
1023 /*
1024 * We list regulators here if systems need some level of
1025 * software control over them after boot.
1026 */
1027 TWL4030_ADJUSTABLE_LDO(VAUX1, 0x17, 1, 100, 0x08);
1028 TWL4030_ADJUSTABLE_LDO(VAUX2_4030, 0x1b, 2, 100, 0x08);
1029 TWL4030_ADJUSTABLE_LDO(VAUX2, 0x1b, 2, 100, 0x08);
1030 TWL4030_ADJUSTABLE_LDO(VAUX3, 0x1f, 3, 100, 0x08);
1031 TWL4030_ADJUSTABLE_LDO(VAUX4, 0x23, 4, 100, 0x08);
1032 TWL4030_ADJUSTABLE_LDO(VMMC1, 0x27, 5, 100, 0x08);
1033 TWL4030_ADJUSTABLE_LDO(VMMC2, 0x2b, 6, 100, 0x08);
1034 TWL4030_ADJUSTABLE_LDO(VPLL1, 0x2f, 7, 100, 0x00);
1035 TWL4030_ADJUSTABLE_LDO(VPLL2, 0x33, 8, 100, 0x08);
1036 TWL4030_ADJUSTABLE_LDO(VSIM, 0x37, 9, 100, 0x00);
1037 TWL4030_ADJUSTABLE_LDO(VDAC, 0x3b, 10, 100, 0x08);
1038 TWL4030_ADJUSTABLE_LDO(VINTANA2, 0x43, 12, 100, 0x08);
1039 TWL4030_ADJUSTABLE_LDO(VIO, 0x4b, 14, 1000, 0x08);
1040 TWL4030_ADJUSTABLE_SMPS(VDD1, 0x55, 15, 1000, 0x08);
1041 TWL4030_ADJUSTABLE_SMPS(VDD2, 0x63, 16, 1000, 0x08);
1042 /* VUSBCP is managed *only* by the USB subchip */
1043 /* 6030 REG with base as PMC Slave Misc : 0x0030 */
1044 /* Turnon-delay and remap configuration values for 6030 are not
1045 verified since the specification is not public */
1046 TWL6030_ADJUSTABLE_SMPS(VDD1);
1047 TWL6030_ADJUSTABLE_SMPS(VDD2);
1048 TWL6030_ADJUSTABLE_SMPS(VDD3);
1049 TWL6030_ADJUSTABLE_LDO(VAUX1_6030, 0x54, 1000, 3300);
1050 TWL6030_ADJUSTABLE_LDO(VAUX2_6030, 0x58, 1000, 3300);
1051 TWL6030_ADJUSTABLE_LDO(VAUX3_6030, 0x5c, 1000, 3300);
1052 TWL6030_ADJUSTABLE_LDO(VMMC, 0x68, 1000, 3300);
1053 TWL6030_ADJUSTABLE_LDO(VPP, 0x6c, 1000, 3300);
1054 TWL6030_ADJUSTABLE_LDO(VUSIM, 0x74, 1000, 3300);
1055 /* 6025 are renamed compared to 6030 versions */
1056 TWL6025_ADJUSTABLE_LDO(LDO2, 0x54, 1000, 3300);
1057 TWL6025_ADJUSTABLE_LDO(LDO4, 0x58, 1000, 3300);
1058 TWL6025_ADJUSTABLE_LDO(LDO3, 0x5c, 1000, 3300);
1059 TWL6025_ADJUSTABLE_LDO(LDO5, 0x68, 1000, 3300);
1060 TWL6025_ADJUSTABLE_LDO(LDO1, 0x6c, 1000, 3300);
1061 TWL6025_ADJUSTABLE_LDO(LDO7, 0x74, 1000, 3300);
1062 TWL6025_ADJUSTABLE_LDO(LDO6, 0x60, 1000, 3300);
1063 TWL6025_ADJUSTABLE_LDO(LDOLN, 0x64, 1000, 3300);
1064 TWL6025_ADJUSTABLE_LDO(LDOUSB, 0x70, 1000, 3300);
1065 TWL4030_FIXED_LDO(VINTANA2, 0x3f, 1500, 11, 100, 0x08);
1066 TWL4030_FIXED_LDO(VINTDIG, 0x47, 1500, 13, 100, 0x08);
1067 TWL4030_FIXED_LDO(VUSB1V5, 0x71, 1500, 17, 100, 0x08);
1068 TWL4030_FIXED_LDO(VUSB1V8, 0x74, 1800, 18, 100, 0x08);
1069 TWL4030_FIXED_LDO(VUSB3V1, 0x77, 3100, 19, 150, 0x08);
1070 TWL6030_FIXED_LDO(VANA, 0x50, 2100, 0);
1071 TWL6030_FIXED_LDO(VCXIO, 0x60, 1800, 0);
1072 TWL6030_FIXED_LDO(VDAC, 0x64, 1800, 0);
1073 TWL6030_FIXED_LDO(VUSB, 0x70, 3300, 0);
1074 TWL6030_FIXED_LDO(V1V8, 0x16, 1800, 0);
1075 TWL6030_FIXED_LDO(V2V1, 0x1c, 2100, 0);
1076 TWL6030_FIXED_RESOURCE(CLK32KG, 0x8C, 0);
1077 TWL6025_ADJUSTABLE_SMPS(SMPS3, 0x34);
1078 TWL6025_ADJUSTABLE_SMPS(SMPS4, 0x10);
1079 TWL6025_ADJUSTABLE_SMPS(VIO, 0x16);
1080
1081 static u8 twl_get_smps_offset(void)
1082 {
1083 u8 value;
1084
1085 twl_i2c_read_u8(TWL_MODULE_PM_RECEIVER, &value,
1086 TWL6030_SMPS_OFFSET);
1087 return value;
1088 }
1089
1090 static u8 twl_get_smps_mult(void)
1091 {
1092 u8 value;
1093
1094 twl_i2c_read_u8(TWL_MODULE_PM_RECEIVER, &value,
1095 TWL6030_SMPS_MULT);
1096 return value;
1097 }
1098
1099 #define TWL_OF_MATCH(comp, family, label) \
1100 { \
1101 .compatible = comp, \
1102 .data = &family##_INFO_##label, \
1103 }
1104
1105 #define TWL4030_OF_MATCH(comp, label) TWL_OF_MATCH(comp, TWL4030, label)
1106 #define TWL6030_OF_MATCH(comp, label) TWL_OF_MATCH(comp, TWL6030, label)
1107 #define TWL6025_OF_MATCH(comp, label) TWL_OF_MATCH(comp, TWL6025, label)
1108 #define TWLFIXED_OF_MATCH(comp, label) TWL_OF_MATCH(comp, TWLFIXED, label)
1109 #define TWLSMPS_OF_MATCH(comp, label) TWL_OF_MATCH(comp, TWLSMPS, label)
1110
1111 static const struct of_device_id twl_of_match[] __devinitconst = {
1112 TWL4030_OF_MATCH("ti,twl4030-vaux1", VAUX1),
1113 TWL4030_OF_MATCH("ti,twl4030-vaux2", VAUX2_4030),
1114 TWL4030_OF_MATCH("ti,twl5030-vaux2", VAUX2),
1115 TWL4030_OF_MATCH("ti,twl4030-vaux3", VAUX3),
1116 TWL4030_OF_MATCH("ti,twl4030-vaux4", VAUX4),
1117 TWL4030_OF_MATCH("ti,twl4030-vmmc1", VMMC1),
1118 TWL4030_OF_MATCH("ti,twl4030-vmmc2", VMMC2),
1119 TWL4030_OF_MATCH("ti,twl4030-vpll1", VPLL1),
1120 TWL4030_OF_MATCH("ti,twl4030-vpll2", VPLL2),
1121 TWL4030_OF_MATCH("ti,twl4030-vsim", VSIM),
1122 TWL4030_OF_MATCH("ti,twl4030-vdac", VDAC),
1123 TWL4030_OF_MATCH("ti,twl4030-vintana2", VINTANA2),
1124 TWL4030_OF_MATCH("ti,twl4030-vio", VIO),
1125 TWL4030_OF_MATCH("ti,twl4030-vdd1", VDD1),
1126 TWL4030_OF_MATCH("ti,twl4030-vdd2", VDD2),
1127 TWL6030_OF_MATCH("ti,twl6030-vdd1", VDD1),
1128 TWL6030_OF_MATCH("ti,twl6030-vdd2", VDD2),
1129 TWL6030_OF_MATCH("ti,twl6030-vdd3", VDD3),
1130 TWL6030_OF_MATCH("ti,twl6030-vaux1", VAUX1_6030),
1131 TWL6030_OF_MATCH("ti,twl6030-vaux2", VAUX2_6030),
1132 TWL6030_OF_MATCH("ti,twl6030-vaux3", VAUX3_6030),
1133 TWL6030_OF_MATCH("ti,twl6030-vmmc", VMMC),
1134 TWL6030_OF_MATCH("ti,twl6030-vpp", VPP),
1135 TWL6030_OF_MATCH("ti,twl6030-vusim", VUSIM),
1136 TWL6025_OF_MATCH("ti,twl6025-ldo2", LDO2),
1137 TWL6025_OF_MATCH("ti,twl6025-ldo4", LDO4),
1138 TWL6025_OF_MATCH("ti,twl6025-ldo3", LDO3),
1139 TWL6025_OF_MATCH("ti,twl6025-ldo5", LDO5),
1140 TWL6025_OF_MATCH("ti,twl6025-ldo1", LDO1),
1141 TWL6025_OF_MATCH("ti,twl6025-ldo7", LDO7),
1142 TWL6025_OF_MATCH("ti,twl6025-ldo6", LDO6),
1143 TWL6025_OF_MATCH("ti,twl6025-ldoln", LDOLN),
1144 TWL6025_OF_MATCH("ti,twl6025-ldousb", LDOUSB),
1145 TWLFIXED_OF_MATCH("ti,twl4030-vintana2", VINTANA2),
1146 TWLFIXED_OF_MATCH("ti,twl4030-vintdig", VINTDIG),
1147 TWLFIXED_OF_MATCH("ti,twl4030-vusb1v5", VUSB1V5),
1148 TWLFIXED_OF_MATCH("ti,twl4030-vusb1v8", VUSB1V8),
1149 TWLFIXED_OF_MATCH("ti,twl4030-vusb3v1", VUSB3V1),
1150 TWLFIXED_OF_MATCH("ti,twl6030-vana", VANA),
1151 TWLFIXED_OF_MATCH("ti,twl6030-vcxio", VCXIO),
1152 TWLFIXED_OF_MATCH("ti,twl6030-vdac", VDAC),
1153 TWLFIXED_OF_MATCH("ti,twl6030-vusb", VUSB),
1154 TWLFIXED_OF_MATCH("ti,twl6030-v1v8", V1V8),
1155 TWLFIXED_OF_MATCH("ti,twl6030-v2v1", V2V1),
1156 TWLSMPS_OF_MATCH("ti,twl6025-smps3", SMPS3),
1157 TWLSMPS_OF_MATCH("ti,twl6025-smps4", SMPS4),
1158 TWLSMPS_OF_MATCH("ti,twl6025-vio", VIO),
1159 {},
1160 };
1161 MODULE_DEVICE_TABLE(of, twl_of_match);
1162
1163 static int __devinit twlreg_probe(struct platform_device *pdev)
1164 {
1165 int i, id;
1166 struct twlreg_info *info;
1167 struct regulator_init_data *initdata;
1168 struct regulation_constraints *c;
1169 struct regulator_dev *rdev;
1170 struct twl_regulator_driver_data *drvdata;
1171 const struct of_device_id *match;
1172 struct regulator_config config = { };
1173
1174 match = of_match_device(twl_of_match, &pdev->dev);
1175 if (match) {
1176 info = match->data;
1177 id = info->desc.id;
1178 initdata = of_get_regulator_init_data(&pdev->dev,
1179 pdev->dev.of_node);
1180 drvdata = NULL;
1181 } else {
1182 id = pdev->id;
1183 initdata = pdev->dev.platform_data;
1184 for (i = 0, info = NULL; i < ARRAY_SIZE(twl_of_match); i++) {
1185 info = twl_of_match[i].data;
1186 if (info && info->desc.id == id)
1187 break;
1188 }
1189 if (i == ARRAY_SIZE(twl_of_match))
1190 return -ENODEV;
1191
1192 drvdata = initdata->driver_data;
1193 if (!drvdata)
1194 return -EINVAL;
1195 }
1196
1197 if (!info)
1198 return -ENODEV;
1199
1200 if (!initdata)
1201 return -EINVAL;
1202
1203 if (drvdata) {
1204 /* copy the driver data into regulator data */
1205 info->features = drvdata->features;
1206 info->data = drvdata->data;
1207 info->set_voltage = drvdata->set_voltage;
1208 info->get_voltage = drvdata->get_voltage;
1209 }
1210
1211 /* Constrain board-specific capabilities according to what
1212 * this driver and the chip itself can actually do.
1213 */
1214 c = &initdata->constraints;
1215 c->valid_modes_mask &= REGULATOR_MODE_NORMAL | REGULATOR_MODE_STANDBY;
1216 c->valid_ops_mask &= REGULATOR_CHANGE_VOLTAGE
1217 | REGULATOR_CHANGE_MODE
1218 | REGULATOR_CHANGE_STATUS;
1219 switch (id) {
1220 case TWL4030_REG_VIO:
1221 case TWL4030_REG_VDD1:
1222 case TWL4030_REG_VDD2:
1223 case TWL4030_REG_VPLL1:
1224 case TWL4030_REG_VINTANA1:
1225 case TWL4030_REG_VINTANA2:
1226 case TWL4030_REG_VINTDIG:
1227 c->always_on = true;
1228 break;
1229 default:
1230 break;
1231 }
1232
1233 switch (id) {
1234 case TWL6025_REG_SMPS3:
1235 if (twl_get_smps_mult() & SMPS_MULTOFFSET_SMPS3)
1236 info->flags |= SMPS_EXTENDED_EN;
1237 if (twl_get_smps_offset() & SMPS_MULTOFFSET_SMPS3)
1238 info->flags |= SMPS_OFFSET_EN;
1239 break;
1240 case TWL6025_REG_SMPS4:
1241 if (twl_get_smps_mult() & SMPS_MULTOFFSET_SMPS4)
1242 info->flags |= SMPS_EXTENDED_EN;
1243 if (twl_get_smps_offset() & SMPS_MULTOFFSET_SMPS4)
1244 info->flags |= SMPS_OFFSET_EN;
1245 break;
1246 case TWL6025_REG_VIO:
1247 if (twl_get_smps_mult() & SMPS_MULTOFFSET_VIO)
1248 info->flags |= SMPS_EXTENDED_EN;
1249 if (twl_get_smps_offset() & SMPS_MULTOFFSET_VIO)
1250 info->flags |= SMPS_OFFSET_EN;
1251 break;
1252 }
1253
1254 config.dev = &pdev->dev;
1255 config.init_data = initdata;
1256 config.driver_data = info;
1257 config.of_node = pdev->dev.of_node;
1258
1259 rdev = regulator_register(&info->desc, &config);
1260 if (IS_ERR(rdev)) {
1261 dev_err(&pdev->dev, "can't register %s, %ld\n",
1262 info->desc.name, PTR_ERR(rdev));
1263 return PTR_ERR(rdev);
1264 }
1265 platform_set_drvdata(pdev, rdev);
1266
1267 if (twl_class_is_4030())
1268 twlreg_write(info, TWL_MODULE_PM_RECEIVER, VREG_REMAP,
1269 info->remap);
1270
1271 /* NOTE: many regulators support short-circuit IRQs (presentable
1272 * as REGULATOR_OVER_CURRENT notifications?) configured via:
1273 * - SC_CONFIG
1274 * - SC_DETECT1 (vintana2, vmmc1/2, vaux1/2/3/4)
1275 * - SC_DETECT2 (vusb, vdac, vio, vdd1/2, vpll2)
1276 * - IT_CONFIG
1277 */
1278
1279 return 0;
1280 }
1281
1282 static int __devexit twlreg_remove(struct platform_device *pdev)
1283 {
1284 regulator_unregister(platform_get_drvdata(pdev));
1285 return 0;
1286 }
1287
1288 MODULE_ALIAS("platform:twl_reg");
1289
1290 static struct platform_driver twlreg_driver = {
1291 .probe = twlreg_probe,
1292 .remove = __devexit_p(twlreg_remove),
1293 /* NOTE: short name, to work around driver model truncation of
1294 * "twl_regulator.12" (and friends) to "twl_regulator.1".
1295 */
1296 .driver = {
1297 .name = "twl_reg",
1298 .owner = THIS_MODULE,
1299 .of_match_table = of_match_ptr(twl_of_match),
1300 },
1301 };
1302
1303 static int __init twlreg_init(void)
1304 {
1305 return platform_driver_register(&twlreg_driver);
1306 }
1307 subsys_initcall(twlreg_init);
1308
1309 static void __exit twlreg_exit(void)
1310 {
1311 platform_driver_unregister(&twlreg_driver);
1312 }
1313 module_exit(twlreg_exit)
1314
1315 MODULE_DESCRIPTION("TWL regulator driver");
1316 MODULE_LICENSE("GPL");
Linux kernel - Deliverables
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