4a37c2b6367fa3c6b8d926205e7719f4e4b5c4c9
[linux-2.6.git] / drivers / regulator / tps65910-regulator.c
1 /*
2  * tps65910.c  --  TI tps65910
3  *
4  * Copyright 2010 Texas Instruments Inc.
5  *
6  * Author: Graeme Gregory <gg@slimlogic.co.uk>
7  * Author: Jorge Eduardo Candelaria <jedu@slimlogic.co.uk>
8  *
9  *  This program is free software; you can redistribute it and/or modify it
10  *  under  the terms of the GNU General  Public License as published by the
11  *  Free Software Foundation;  either version 2 of the License, or (at your
12  *  option) any later version.
13  *
14  */
15
16 #include <linux/kernel.h>
17 #include <linux/module.h>
18 #include <linux/init.h>
19 #include <linux/err.h>
20 #include <linux/platform_device.h>
21 #include <linux/regulator/driver.h>
22 #include <linux/regulator/machine.h>
23 #include <linux/delay.h>
24 #include <linux/slab.h>
25 #include <linux/gpio.h>
26 #include <linux/mfd/tps65910.h>
27
28 #define TPS65910_SUPPLY_STATE_ENABLED   0x1
29 #define EXT_SLEEP_CONTROL (TPS65910_SLEEP_CONTROL_EXT_INPUT_EN1 |       \
30                         TPS65910_SLEEP_CONTROL_EXT_INPUT_EN2 |          \
31                         TPS65910_SLEEP_CONTROL_EXT_INPUT_EN3 |          \
32                         TPS65911_SLEEP_CONTROL_EXT_INPUT_SLEEP)
33
34 /* supported VIO voltages in milivolts */
35 static const u16 VIO_VSEL_table[] = {
36         1500, 1800, 2500, 3300,
37 };
38
39 /* VSEL tables for TPS65910 specific LDOs and dcdc's */
40
41 /* supported VDD3 voltages in milivolts */
42 static const u16 VDD3_VSEL_table[] = {
43         5000,
44 };
45
46 /* supported VDIG1 voltages in milivolts */
47 static const u16 VDIG1_VSEL_table[] = {
48         1200, 1500, 1800, 2700,
49 };
50
51 /* supported VDIG2 voltages in milivolts */
52 static const u16 VDIG2_VSEL_table[] = {
53         1000, 1100, 1200, 1800,
54 };
55
56 /* supported VPLL voltages in milivolts */
57 static const u16 VPLL_VSEL_table[] = {
58         1000, 1100, 1800, 2500,
59 };
60
61 /* supported VDAC voltages in milivolts */
62 static const u16 VDAC_VSEL_table[] = {
63         1800, 2600, 2800, 2850,
64 };
65
66 /* supported VAUX1 voltages in milivolts */
67 static const u16 VAUX1_VSEL_table[] = {
68         1800, 2500, 2800, 2850,
69 };
70
71 /* supported VAUX2 voltages in milivolts */
72 static const u16 VAUX2_VSEL_table[] = {
73         1800, 2800, 2900, 3300,
74 };
75
76 /* supported VAUX33 voltages in milivolts */
77 static const u16 VAUX33_VSEL_table[] = {
78         1800, 2000, 2800, 3300,
79 };
80
81 /* supported VMMC voltages in milivolts */
82 static const u16 VMMC_VSEL_table[] = {
83         1800, 2800, 3000, 3300,
84 };
85
86 struct tps_info {
87         const char *name;
88         unsigned min_uV;
89         unsigned max_uV;
90         u8 n_voltages;
91         const u16 *voltage_table;
92         int enable_time_us;
93 };
94
95 static struct tps_info tps65910_regs[] = {
96         {
97                 .name = "VRTC",
98                 .enable_time_us = 2200,
99         },
100         {
101                 .name = "VIO",
102                 .min_uV = 1500000,
103                 .max_uV = 3300000,
104                 .n_voltages = ARRAY_SIZE(VIO_VSEL_table),
105                 .voltage_table = VIO_VSEL_table,
106                 .enable_time_us = 350,
107         },
108         {
109                 .name = "VDD1",
110                 .min_uV = 600000,
111                 .max_uV = 4500000,
112                 .enable_time_us = 350,
113         },
114         {
115                 .name = "VDD2",
116                 .min_uV = 600000,
117                 .max_uV = 4500000,
118                 .enable_time_us = 350,
119         },
120         {
121                 .name = "VDD3",
122                 .min_uV = 5000000,
123                 .max_uV = 5000000,
124                 .n_voltages = ARRAY_SIZE(VDD3_VSEL_table),
125                 .voltage_table = VDD3_VSEL_table,
126                 .enable_time_us = 200,
127         },
128         {
129                 .name = "VDIG1",
130                 .min_uV = 1200000,
131                 .max_uV = 2700000,
132                 .n_voltages = ARRAY_SIZE(VDIG1_VSEL_table),
133                 .voltage_table = VDIG1_VSEL_table,
134                 .enable_time_us = 100,
135         },
136         {
137                 .name = "VDIG2",
138                 .min_uV = 1000000,
139                 .max_uV = 1800000,
140                 .n_voltages = ARRAY_SIZE(VDIG2_VSEL_table),
141                 .voltage_table = VDIG2_VSEL_table,
142                 .enable_time_us = 100,
143         },
144         {
145                 .name = "VPLL",
146                 .min_uV = 1000000,
147                 .max_uV = 2500000,
148                 .n_voltages = ARRAY_SIZE(VPLL_VSEL_table),
149                 .voltage_table = VPLL_VSEL_table,
150                 .enable_time_us = 100,
151         },
152         {
153                 .name = "VDAC",
154                 .min_uV = 1800000,
155                 .max_uV = 2850000,
156                 .n_voltages = ARRAY_SIZE(VDAC_VSEL_table),
157                 .voltage_table = VDAC_VSEL_table,
158                 .enable_time_us = 100,
159         },
160         {
161                 .name = "VAUX1",
162                 .min_uV = 1800000,
163                 .max_uV = 2850000,
164                 .n_voltages = ARRAY_SIZE(VAUX1_VSEL_table),
165                 .voltage_table = VAUX1_VSEL_table,
166                 .enable_time_us = 100,
167         },
168         {
169                 .name = "VAUX2",
170                 .min_uV = 1800000,
171                 .max_uV = 3300000,
172                 .n_voltages = ARRAY_SIZE(VAUX2_VSEL_table),
173                 .voltage_table = VAUX2_VSEL_table,
174                 .enable_time_us = 100,
175         },
176         {
177                 .name = "VAUX33",
178                 .min_uV = 1800000,
179                 .max_uV = 3300000,
180                 .n_voltages = ARRAY_SIZE(VAUX33_VSEL_table),
181                 .voltage_table = VAUX33_VSEL_table,
182                 .enable_time_us = 100,
183         },
184         {
185                 .name = "VMMC",
186                 .min_uV = 1800000,
187                 .max_uV = 3300000,
188                 .n_voltages = ARRAY_SIZE(VMMC_VSEL_table),
189                 .voltage_table = VMMC_VSEL_table,
190                 .enable_time_us = 100,
191         },
192 };
193
194 static struct tps_info tps65911_regs[] = {
195         {
196                 .name = "VRTC",
197                 .enable_time_us = 2200,
198         },
199         {
200                 .name = "VIO",
201                 .min_uV = 1500000,
202                 .max_uV = 3300000,
203                 .n_voltages = ARRAY_SIZE(VIO_VSEL_table),
204                 .voltage_table = VIO_VSEL_table,
205                 .enable_time_us = 350,
206         },
207         {
208                 .name = "VDD1",
209                 .min_uV = 600000,
210                 .max_uV = 4500000,
211                 .n_voltages = 73,
212                 .enable_time_us = 350,
213         },
214         {
215                 .name = "VDD2",
216                 .min_uV = 600000,
217                 .max_uV = 4500000,
218                 .n_voltages = 73,
219                 .enable_time_us = 350,
220         },
221         {
222                 .name = "VDDCTRL",
223                 .min_uV = 600000,
224                 .max_uV = 1400000,
225                 .n_voltages = 65,
226                 .enable_time_us = 900,
227         },
228         {
229                 .name = "LDO1",
230                 .min_uV = 1000000,
231                 .max_uV = 3300000,
232                 .n_voltages = 47,
233                 .enable_time_us = 420,
234         },
235         {
236                 .name = "LDO2",
237                 .min_uV = 1000000,
238                 .max_uV = 3300000,
239                 .n_voltages = 47,
240                 .enable_time_us = 420,
241         },
242         {
243                 .name = "LDO3",
244                 .min_uV = 1000000,
245                 .max_uV = 3300000,
246                 .n_voltages = 24,
247                 .enable_time_us = 230,
248         },
249         {
250                 .name = "LDO4",
251                 .min_uV = 1000000,
252                 .max_uV = 3300000,
253                 .n_voltages = 47,
254                 .enable_time_us = 230,
255         },
256         {
257                 .name = "LDO5",
258                 .min_uV = 1000000,
259                 .max_uV = 3300000,
260                 .n_voltages = 24,
261                 .enable_time_us = 230,
262         },
263         {
264                 .name = "LDO6",
265                 .min_uV = 1000000,
266                 .max_uV = 3300000,
267                 .n_voltages = 24,
268                 .enable_time_us = 230,
269         },
270         {
271                 .name = "LDO7",
272                 .min_uV = 1000000,
273                 .max_uV = 3300000,
274                 .n_voltages = 24,
275                 .enable_time_us = 230,
276         },
277         {
278                 .name = "LDO8",
279                 .min_uV = 1000000,
280                 .max_uV = 3300000,
281                 .n_voltages = 24,
282                 .enable_time_us = 230,
283         },
284 };
285
286 #define EXT_CONTROL_REG_BITS(id, regs_offs, bits) (((regs_offs) << 8) | (bits))
287 static unsigned int tps65910_ext_sleep_control[] = {
288         0,
289         EXT_CONTROL_REG_BITS(VIO,    1, 0),
290         EXT_CONTROL_REG_BITS(VDD1,   1, 1),
291         EXT_CONTROL_REG_BITS(VDD2,   1, 2),
292         EXT_CONTROL_REG_BITS(VDD3,   1, 3),
293         EXT_CONTROL_REG_BITS(VDIG1,  0, 1),
294         EXT_CONTROL_REG_BITS(VDIG2,  0, 2),
295         EXT_CONTROL_REG_BITS(VPLL,   0, 6),
296         EXT_CONTROL_REG_BITS(VDAC,   0, 7),
297         EXT_CONTROL_REG_BITS(VAUX1,  0, 3),
298         EXT_CONTROL_REG_BITS(VAUX2,  0, 4),
299         EXT_CONTROL_REG_BITS(VAUX33, 0, 5),
300         EXT_CONTROL_REG_BITS(VMMC,   0, 0),
301 };
302
303 static unsigned int tps65911_ext_sleep_control[] = {
304         0,
305         EXT_CONTROL_REG_BITS(VIO,     1, 0),
306         EXT_CONTROL_REG_BITS(VDD1,    1, 1),
307         EXT_CONTROL_REG_BITS(VDD2,    1, 2),
308         EXT_CONTROL_REG_BITS(VDDCTRL, 1, 3),
309         EXT_CONTROL_REG_BITS(LDO1,    0, 1),
310         EXT_CONTROL_REG_BITS(LDO2,    0, 2),
311         EXT_CONTROL_REG_BITS(LDO3,    0, 7),
312         EXT_CONTROL_REG_BITS(LDO4,    0, 6),
313         EXT_CONTROL_REG_BITS(LDO5,    0, 3),
314         EXT_CONTROL_REG_BITS(LDO6,    0, 0),
315         EXT_CONTROL_REG_BITS(LDO7,    0, 5),
316         EXT_CONTROL_REG_BITS(LDO8,    0, 4),
317 };
318
319 struct tps65910_reg {
320         struct regulator_desc *desc;
321         struct tps65910 *mfd;
322         struct regulator_dev **rdev;
323         struct tps_info **info;
324         struct mutex mutex;
325         int num_regulators;
326         int mode;
327         int  (*get_ctrl_reg)(int);
328         unsigned int *ext_sleep_control;
329         unsigned int board_ext_control[TPS65910_NUM_REGS];
330 };
331
332 static inline int tps65910_read(struct tps65910_reg *pmic, u8 reg)
333 {
334         u8 val;
335         int err;
336
337         err = pmic->mfd->read(pmic->mfd, reg, 1, &val);
338         if (err)
339                 return err;
340
341         return val;
342 }
343
344 static inline int tps65910_write(struct tps65910_reg *pmic, u8 reg, u8 val)
345 {
346         return pmic->mfd->write(pmic->mfd, reg, 1, &val);
347 }
348
349 static int tps65910_modify_bits(struct tps65910_reg *pmic, u8 reg,
350                                         u8 set_mask, u8 clear_mask)
351 {
352         int err, data;
353
354         mutex_lock(&pmic->mutex);
355
356         data = tps65910_read(pmic, reg);
357         if (data < 0) {
358                 dev_err(pmic->mfd->dev, "Read from reg 0x%x failed\n", reg);
359                 err = data;
360                 goto out;
361         }
362
363         data &= ~clear_mask;
364         data |= set_mask;
365         err = tps65910_write(pmic, reg, data);
366         if (err)
367                 dev_err(pmic->mfd->dev, "Write for reg 0x%x failed\n", reg);
368
369 out:
370         mutex_unlock(&pmic->mutex);
371         return err;
372 }
373
374 static int tps65910_reg_read(struct tps65910_reg *pmic, u8 reg)
375 {
376         int data;
377
378         mutex_lock(&pmic->mutex);
379
380         data = tps65910_read(pmic, reg);
381         if (data < 0)
382                 dev_err(pmic->mfd->dev, "Read from reg 0x%x failed\n", reg);
383
384         mutex_unlock(&pmic->mutex);
385         return data;
386 }
387
388 static int tps65910_reg_write(struct tps65910_reg *pmic, u8 reg, u8 val)
389 {
390         int err;
391
392         mutex_lock(&pmic->mutex);
393
394         err = tps65910_write(pmic, reg, val);
395         if (err < 0)
396                 dev_err(pmic->mfd->dev, "Write for reg 0x%x failed\n", reg);
397
398         mutex_unlock(&pmic->mutex);
399         return err;
400 }
401
402 static int tps65910_get_ctrl_register(int id)
403 {
404         switch (id) {
405         case TPS65910_REG_VRTC:
406                 return TPS65910_VRTC;
407         case TPS65910_REG_VIO:
408                 return TPS65910_VIO;
409         case TPS65910_REG_VDD1:
410                 return TPS65910_VDD1;
411         case TPS65910_REG_VDD2:
412                 return TPS65910_VDD2;
413         case TPS65910_REG_VDD3:
414                 return TPS65910_VDD3;
415         case TPS65910_REG_VDIG1:
416                 return TPS65910_VDIG1;
417         case TPS65910_REG_VDIG2:
418                 return TPS65910_VDIG2;
419         case TPS65910_REG_VPLL:
420                 return TPS65910_VPLL;
421         case TPS65910_REG_VDAC:
422                 return TPS65910_VDAC;
423         case TPS65910_REG_VAUX1:
424                 return TPS65910_VAUX1;
425         case TPS65910_REG_VAUX2:
426                 return TPS65910_VAUX2;
427         case TPS65910_REG_VAUX33:
428                 return TPS65910_VAUX33;
429         case TPS65910_REG_VMMC:
430                 return TPS65910_VMMC;
431         default:
432                 return -EINVAL;
433         }
434 }
435
436 static int tps65911_get_ctrl_register(int id)
437 {
438         switch (id) {
439         case TPS65910_REG_VRTC:
440                 return TPS65910_VRTC;
441         case TPS65910_REG_VIO:
442                 return TPS65910_VIO;
443         case TPS65910_REG_VDD1:
444                 return TPS65910_VDD1;
445         case TPS65910_REG_VDD2:
446                 return TPS65910_VDD2;
447         case TPS65911_REG_VDDCTRL:
448                 return TPS65911_VDDCTRL;
449         case TPS65911_REG_LDO1:
450                 return TPS65911_LDO1;
451         case TPS65911_REG_LDO2:
452                 return TPS65911_LDO2;
453         case TPS65911_REG_LDO3:
454                 return TPS65911_LDO3;
455         case TPS65911_REG_LDO4:
456                 return TPS65911_LDO4;
457         case TPS65911_REG_LDO5:
458                 return TPS65911_LDO5;
459         case TPS65911_REG_LDO6:
460                 return TPS65911_LDO6;
461         case TPS65911_REG_LDO7:
462                 return TPS65911_LDO7;
463         case TPS65911_REG_LDO8:
464                 return TPS65911_LDO8;
465         default:
466                 return -EINVAL;
467         }
468 }
469
470 static int tps65910_is_enabled(struct regulator_dev *dev)
471 {
472         struct tps65910_reg *pmic = rdev_get_drvdata(dev);
473         int reg, value, id = rdev_get_id(dev);
474
475         reg = pmic->get_ctrl_reg(id);
476         if (reg < 0)
477                 return reg;
478
479         value = tps65910_reg_read(pmic, reg);
480         if (value < 0)
481                 return value;
482
483         return value & TPS65910_SUPPLY_STATE_ENABLED;
484 }
485
486 static int tps65910_enable(struct regulator_dev *dev)
487 {
488         struct tps65910_reg *pmic = rdev_get_drvdata(dev);
489         struct tps65910 *mfd = pmic->mfd;
490         int reg, id = rdev_get_id(dev);
491
492         reg = pmic->get_ctrl_reg(id);
493         if (reg < 0)
494                 return reg;
495
496         return tps65910_set_bits(mfd, reg, TPS65910_SUPPLY_STATE_ENABLED);
497 }
498
499 static int tps65910_disable(struct regulator_dev *dev)
500 {
501         struct tps65910_reg *pmic = rdev_get_drvdata(dev);
502         struct tps65910 *mfd = pmic->mfd;
503         int reg, id = rdev_get_id(dev);
504
505         reg = pmic->get_ctrl_reg(id);
506         if (reg < 0)
507                 return reg;
508
509         return tps65910_clear_bits(mfd, reg, TPS65910_SUPPLY_STATE_ENABLED);
510 }
511
512 static int tps65910_enable_time(struct regulator_dev *dev)
513 {
514         struct tps65910_reg *pmic = rdev_get_drvdata(dev);
515         int id = rdev_get_id(dev);
516         return pmic->info[id]->enable_time_us;
517 }
518
519 static int tps65910_set_mode(struct regulator_dev *dev, unsigned int mode)
520 {
521         struct tps65910_reg *pmic = rdev_get_drvdata(dev);
522         struct tps65910 *mfd = pmic->mfd;
523         int reg, value, id = rdev_get_id(dev);
524
525         reg = pmic->get_ctrl_reg(id);
526         if (reg < 0)
527                 return reg;
528
529         switch (mode) {
530         case REGULATOR_MODE_NORMAL:
531                 return tps65910_modify_bits(pmic, reg, LDO_ST_ON_BIT,
532                                                         LDO_ST_MODE_BIT);
533         case REGULATOR_MODE_IDLE:
534                 value = LDO_ST_ON_BIT | LDO_ST_MODE_BIT;
535                 return tps65910_set_bits(mfd, reg, value);
536         case REGULATOR_MODE_STANDBY:
537                 return tps65910_clear_bits(mfd, reg, LDO_ST_ON_BIT);
538         }
539
540         return -EINVAL;
541 }
542
543 static unsigned int tps65910_get_mode(struct regulator_dev *dev)
544 {
545         struct tps65910_reg *pmic = rdev_get_drvdata(dev);
546         int reg, value, id = rdev_get_id(dev);
547
548         reg = pmic->get_ctrl_reg(id);
549         if (reg < 0)
550                 return reg;
551
552         value = tps65910_reg_read(pmic, reg);
553         if (value < 0)
554                 return value;
555
556         if (!(value & LDO_ST_ON_BIT))
557                 return REGULATOR_MODE_STANDBY;
558         else if (value & LDO_ST_MODE_BIT)
559                 return REGULATOR_MODE_IDLE;
560         else
561                 return REGULATOR_MODE_NORMAL;
562 }
563
564 static int tps65910_get_voltage_dcdc_sel(struct regulator_dev *dev)
565 {
566         struct tps65910_reg *pmic = rdev_get_drvdata(dev);
567         int id = rdev_get_id(dev);
568         int opvsel = 0, srvsel = 0, vselmax = 0, mult = 0, sr = 0;
569
570         switch (id) {
571         case TPS65910_REG_VDD1:
572                 opvsel = tps65910_reg_read(pmic, TPS65910_VDD1_OP);
573                 mult = tps65910_reg_read(pmic, TPS65910_VDD1);
574                 mult = (mult & VDD1_VGAIN_SEL_MASK) >> VDD1_VGAIN_SEL_SHIFT;
575                 srvsel = tps65910_reg_read(pmic, TPS65910_VDD1_SR);
576                 sr = opvsel & VDD1_OP_CMD_MASK;
577                 opvsel &= VDD1_OP_SEL_MASK;
578                 srvsel &= VDD1_SR_SEL_MASK;
579                 vselmax = 75;
580                 break;
581         case TPS65910_REG_VDD2:
582                 opvsel = tps65910_reg_read(pmic, TPS65910_VDD2_OP);
583                 mult = tps65910_reg_read(pmic, TPS65910_VDD2);
584                 mult = (mult & VDD2_VGAIN_SEL_MASK) >> VDD2_VGAIN_SEL_SHIFT;
585                 srvsel = tps65910_reg_read(pmic, TPS65910_VDD2_SR);
586                 sr = opvsel & VDD2_OP_CMD_MASK;
587                 opvsel &= VDD2_OP_SEL_MASK;
588                 srvsel &= VDD2_SR_SEL_MASK;
589                 vselmax = 75;
590                 break;
591         case TPS65911_REG_VDDCTRL:
592                 opvsel = tps65910_reg_read(pmic, TPS65911_VDDCTRL_OP);
593                 srvsel = tps65910_reg_read(pmic, TPS65911_VDDCTRL_SR);
594                 sr = opvsel & VDDCTRL_OP_CMD_MASK;
595                 opvsel &= VDDCTRL_OP_SEL_MASK;
596                 srvsel &= VDDCTRL_SR_SEL_MASK;
597                 vselmax = 64;
598                 break;
599         }
600
601         /* multiplier 0 == 1 but 2,3 normal */
602         if (!mult)
603                 mult=1;
604
605         if (sr) {
606                 /* normalise to valid range */
607                 if (srvsel < 3)
608                         srvsel = 3;
609                 if (srvsel > vselmax)
610                         srvsel = vselmax;
611                 return srvsel - 3;
612         } else {
613
614                 /* normalise to valid range*/
615                 if (opvsel < 3)
616                         opvsel = 3;
617                 if (opvsel > vselmax)
618                         opvsel = vselmax;
619                 return opvsel - 3;
620         }
621         return -EINVAL;
622 }
623
624 static int tps65910_get_voltage(struct regulator_dev *dev)
625 {
626         struct tps65910_reg *pmic = rdev_get_drvdata(dev);
627         int reg, value, id = rdev_get_id(dev), voltage = 0;
628
629         reg = pmic->get_ctrl_reg(id);
630         if (reg < 0)
631                 return reg;
632
633         value = tps65910_reg_read(pmic, reg);
634         if (value < 0)
635                 return value;
636
637         switch (id) {
638         case TPS65910_REG_VIO:
639         case TPS65910_REG_VDIG1:
640         case TPS65910_REG_VDIG2:
641         case TPS65910_REG_VPLL:
642         case TPS65910_REG_VDAC:
643         case TPS65910_REG_VAUX1:
644         case TPS65910_REG_VAUX2:
645         case TPS65910_REG_VAUX33:
646         case TPS65910_REG_VMMC:
647                 value &= LDO_SEL_MASK;
648                 value >>= LDO_SEL_SHIFT;
649                 break;
650         default:
651                 return -EINVAL;
652         }
653
654         voltage = pmic->info[id]->voltage_table[value] * 1000;
655
656         return voltage;
657 }
658
659 static int tps65910_get_voltage_vdd3(struct regulator_dev *dev)
660 {
661         return 5 * 1000 * 1000;
662 }
663
664 static int tps65911_get_voltage(struct regulator_dev *dev)
665 {
666         struct tps65910_reg *pmic = rdev_get_drvdata(dev);
667         int step_mv, id = rdev_get_id(dev);
668         u8 value, reg;
669
670         reg = pmic->get_ctrl_reg(id);
671
672         value = tps65910_reg_read(pmic, reg);
673
674         switch (id) {
675         case TPS65911_REG_LDO1:
676         case TPS65911_REG_LDO2:
677         case TPS65911_REG_LDO4:
678                 value &= LDO1_SEL_MASK;
679                 value >>= LDO_SEL_SHIFT;
680                 /* The first 5 values of the selector correspond to 1V */
681                 if (value < 5)
682                         value = 0;
683                 else
684                         value -= 4;
685
686                 step_mv = 50;
687                 break;
688         case TPS65911_REG_LDO3:
689         case TPS65911_REG_LDO5:
690         case TPS65911_REG_LDO6:
691         case TPS65911_REG_LDO7:
692         case TPS65911_REG_LDO8:
693                 value &= LDO3_SEL_MASK;
694                 value >>= LDO_SEL_SHIFT;
695                 /* The first 3 values of the selector correspond to 1V */
696                 if (value < 3)
697                         value = 0;
698                 else
699                         value -= 2;
700
701                 step_mv = 100;
702                 break;
703         case TPS65910_REG_VIO:
704                 value &= LDO_SEL_MASK;
705                 value >>= LDO_SEL_SHIFT;
706                 return pmic->info[id]->voltage_table[value] * 1000;
707         default:
708                 return -EINVAL;
709         }
710
711         return (LDO_MIN_VOLT + value * step_mv) * 1000;
712 }
713
714 static int tps65910_set_voltage_dcdc_sel(struct regulator_dev *dev,
715                                          unsigned selector)
716 {
717         struct tps65910_reg *pmic = rdev_get_drvdata(dev);
718         int id = rdev_get_id(dev), vsel;
719         int dcdc_mult = 0;
720
721         switch (id) {
722         case TPS65910_REG_VDD1:
723                 dcdc_mult = (selector / VDD1_2_NUM_VOLT_FINE) + 1;
724                 if (dcdc_mult == 1)
725                         dcdc_mult--;
726                 vsel = (selector % VDD1_2_NUM_VOLT_FINE) + 3;
727
728                 tps65910_modify_bits(pmic, TPS65910_VDD1,
729                                 (dcdc_mult << VDD1_VGAIN_SEL_SHIFT),
730                                                 VDD1_VGAIN_SEL_MASK);
731                 tps65910_reg_write(pmic, TPS65910_VDD1_OP, vsel);
732                 break;
733         case TPS65910_REG_VDD2:
734                 dcdc_mult = (selector / VDD1_2_NUM_VOLT_FINE) + 1;
735                 if (dcdc_mult == 1)
736                         dcdc_mult--;
737                 vsel = (selector % VDD1_2_NUM_VOLT_FINE) + 3;
738
739                 tps65910_modify_bits(pmic, TPS65910_VDD2,
740                                 (dcdc_mult << VDD2_VGAIN_SEL_SHIFT),
741                                                 VDD1_VGAIN_SEL_MASK);
742                 tps65910_reg_write(pmic, TPS65910_VDD2_OP, vsel);
743                 break;
744         case TPS65911_REG_VDDCTRL:
745                 vsel = selector + 3;
746                 tps65910_reg_write(pmic, TPS65911_VDDCTRL_OP, vsel);
747         }
748
749         return 0;
750 }
751
752 static int tps65910_set_voltage_sel(struct regulator_dev *dev,
753                                     unsigned selector)
754 {
755         struct tps65910_reg *pmic = rdev_get_drvdata(dev);
756         int reg, id = rdev_get_id(dev);
757
758         reg = pmic->get_ctrl_reg(id);
759         if (reg < 0)
760                 return reg;
761
762         switch (id) {
763         case TPS65910_REG_VIO:
764         case TPS65910_REG_VDIG1:
765         case TPS65910_REG_VDIG2:
766         case TPS65910_REG_VPLL:
767         case TPS65910_REG_VDAC:
768         case TPS65910_REG_VAUX1:
769         case TPS65910_REG_VAUX2:
770         case TPS65910_REG_VAUX33:
771         case TPS65910_REG_VMMC:
772                 return tps65910_modify_bits(pmic, reg,
773                                 (selector << LDO_SEL_SHIFT), LDO_SEL_MASK);
774         }
775
776         return -EINVAL;
777 }
778
779 static int tps65911_set_voltage_sel(struct regulator_dev *dev,
780                                     unsigned selector)
781 {
782         struct tps65910_reg *pmic = rdev_get_drvdata(dev);
783         int reg, id = rdev_get_id(dev);
784
785         reg = pmic->get_ctrl_reg(id);
786         if (reg < 0)
787                 return reg;
788
789         switch (id) {
790         case TPS65911_REG_LDO1:
791         case TPS65911_REG_LDO2:
792         case TPS65911_REG_LDO4:
793                 return tps65910_modify_bits(pmic, reg,
794                                 (selector << LDO_SEL_SHIFT), LDO1_SEL_MASK);
795         case TPS65911_REG_LDO3:
796         case TPS65911_REG_LDO5:
797         case TPS65911_REG_LDO6:
798         case TPS65911_REG_LDO7:
799         case TPS65911_REG_LDO8:
800                 return tps65910_modify_bits(pmic, reg,
801                                 (selector << LDO_SEL_SHIFT), LDO3_SEL_MASK);
802         case TPS65910_REG_VIO:
803                 return tps65910_modify_bits(pmic, reg,
804                                 (selector << LDO_SEL_SHIFT), LDO_SEL_MASK);
805         }
806
807         return -EINVAL;
808 }
809
810
811 static int tps65910_list_voltage_dcdc(struct regulator_dev *dev,
812                                         unsigned selector)
813 {
814         int volt, mult = 1, id = rdev_get_id(dev);
815
816         switch (id) {
817         case TPS65910_REG_VDD1:
818         case TPS65910_REG_VDD2:
819                 mult = (selector / VDD1_2_NUM_VOLT_FINE) + 1;
820                 volt = VDD1_2_MIN_VOLT +
821                                 (selector % VDD1_2_NUM_VOLT_FINE) * VDD1_2_OFFSET;
822                 break;
823         case TPS65911_REG_VDDCTRL:
824                 volt = VDDCTRL_MIN_VOLT + (selector * VDDCTRL_OFFSET);
825                 break;
826         default:
827                 BUG();
828                 return -EINVAL;
829         }
830
831         return  volt * 100 * mult;
832 }
833
834 static int tps65910_list_voltage(struct regulator_dev *dev,
835                                         unsigned selector)
836 {
837         struct tps65910_reg *pmic = rdev_get_drvdata(dev);
838         int id = rdev_get_id(dev), voltage;
839
840         if (id < TPS65910_REG_VIO || id > TPS65910_REG_VMMC)
841                 return -EINVAL;
842
843         if (selector >= pmic->info[id]->n_voltages)
844                 return -EINVAL;
845         else
846                 voltage = pmic->info[id]->voltage_table[selector] * 1000;
847
848         return voltage;
849 }
850
851 static int tps65911_list_voltage(struct regulator_dev *dev, unsigned selector)
852 {
853         struct tps65910_reg *pmic = rdev_get_drvdata(dev);
854         int step_mv = 0, id = rdev_get_id(dev);
855
856         switch(id) {
857         case TPS65911_REG_LDO1:
858         case TPS65911_REG_LDO2:
859         case TPS65911_REG_LDO4:
860                 /* The first 5 values of the selector correspond to 1V */
861                 if (selector < 5)
862                         selector = 0;
863                 else
864                         selector -= 4;
865
866                 step_mv = 50;
867                 break;
868         case TPS65911_REG_LDO3:
869         case TPS65911_REG_LDO5:
870         case TPS65911_REG_LDO6:
871         case TPS65911_REG_LDO7:
872         case TPS65911_REG_LDO8:
873                 /* The first 3 values of the selector correspond to 1V */
874                 if (selector < 3)
875                         selector = 0;
876                 else
877                         selector -= 2;
878
879                 step_mv = 100;
880                 break;
881         case TPS65910_REG_VIO:
882                 return pmic->info[id]->voltage_table[selector] * 1000;
883         default:
884                 return -EINVAL;
885         }
886
887         return (LDO_MIN_VOLT + selector * step_mv) * 1000;
888 }
889
890 static int tps65910_set_voltage_dcdc_time_sel(struct regulator_dev *dev,
891                 unsigned int old_selector, unsigned int new_selector)
892 {
893         int id = rdev_get_id(dev);
894         int old_volt, new_volt;
895
896         old_volt = tps65910_list_voltage_dcdc(dev, old_selector);
897         if (old_volt < 0)
898                 return old_volt;
899
900         new_volt = tps65910_list_voltage_dcdc(dev, new_selector);
901         if (new_volt < 0)
902                 return new_volt;
903
904         /* VDD1 and VDD2 are 12.5mV/us, VDDCTRL is 100mV/20us */
905         switch (id) {
906         case TPS65910_REG_VDD1:
907         case TPS65910_REG_VDD2:
908                 return DIV_ROUND_UP(abs(old_volt - new_volt), 12500);
909         case TPS65911_REG_VDDCTRL:
910                 return DIV_ROUND_UP(abs(old_volt - new_volt), 5000);
911         }
912         return -EINVAL;
913 }
914
915 /* Regulator ops (except VRTC) */
916 static struct regulator_ops tps65910_ops_dcdc = {
917         .is_enabled             = tps65910_is_enabled,
918         .enable                 = tps65910_enable,
919         .disable                = tps65910_disable,
920         .enable_time            = tps65910_enable_time,
921         .set_mode               = tps65910_set_mode,
922         .get_mode               = tps65910_get_mode,
923         .get_voltage_sel        = tps65910_get_voltage_dcdc_sel,
924         .set_voltage_sel        = tps65910_set_voltage_dcdc_sel,
925         .set_voltage_time_sel   = tps65910_set_voltage_dcdc_time_sel,
926         .list_voltage           = tps65910_list_voltage_dcdc,
927 };
928
929 static struct regulator_ops tps65910_ops_vdd3 = {
930         .is_enabled             = tps65910_is_enabled,
931         .enable                 = tps65910_enable,
932         .disable                = tps65910_disable,
933         .enable_time            = tps65910_enable_time,
934         .set_mode               = tps65910_set_mode,
935         .get_mode               = tps65910_get_mode,
936         .get_voltage            = tps65910_get_voltage_vdd3,
937         .list_voltage           = tps65910_list_voltage,
938 };
939
940 static struct regulator_ops tps65910_ops = {
941         .is_enabled             = tps65910_is_enabled,
942         .enable                 = tps65910_enable,
943         .disable                = tps65910_disable,
944         .enable_time            = tps65910_enable_time,
945         .set_mode               = tps65910_set_mode,
946         .get_mode               = tps65910_get_mode,
947         .get_voltage            = tps65910_get_voltage,
948         .set_voltage_sel        = tps65910_set_voltage_sel,
949         .list_voltage           = tps65910_list_voltage,
950 };
951
952 static struct regulator_ops tps65911_ops = {
953         .is_enabled             = tps65910_is_enabled,
954         .enable                 = tps65910_enable,
955         .disable                = tps65910_disable,
956         .enable_time            = tps65910_enable_time,
957         .set_mode               = tps65910_set_mode,
958         .get_mode               = tps65910_get_mode,
959         .get_voltage            = tps65911_get_voltage,
960         .set_voltage_sel        = tps65911_set_voltage_sel,
961         .list_voltage           = tps65911_list_voltage,
962 };
963
964 static int tps65910_set_ext_sleep_config(struct tps65910_reg *pmic,
965                 int id, int ext_sleep_config)
966 {
967         struct tps65910 *mfd = pmic->mfd;
968         u8 regoffs = (pmic->ext_sleep_control[id] >> 8) & 0xFF;
969         u8 bit_pos = (1 << pmic->ext_sleep_control[id] & 0xFF);
970         int ret;
971
972         /*
973          * Regulator can not be control from multiple external input EN1, EN2
974          * and EN3 together.
975          */
976         if (ext_sleep_config & EXT_SLEEP_CONTROL) {
977                 int en_count;
978                 en_count = ((ext_sleep_config &
979                                 TPS65910_SLEEP_CONTROL_EXT_INPUT_EN1) != 0);
980                 en_count += ((ext_sleep_config &
981                                 TPS65910_SLEEP_CONTROL_EXT_INPUT_EN2) != 0);
982                 en_count += ((ext_sleep_config &
983                                 TPS65910_SLEEP_CONTROL_EXT_INPUT_EN3) != 0);
984                 en_count += ((ext_sleep_config &
985                                 TPS65911_SLEEP_CONTROL_EXT_INPUT_SLEEP) != 0);
986                 if (en_count > 1) {
987                         dev_err(mfd->dev,
988                                 "External sleep control flag is not proper\n");
989                         return -EINVAL;
990                 }
991         }
992
993         pmic->board_ext_control[id] = ext_sleep_config;
994
995         /* External EN1 control */
996         if (ext_sleep_config & TPS65910_SLEEP_CONTROL_EXT_INPUT_EN1)
997                 ret = tps65910_set_bits(mfd,
998                                 TPS65910_EN1_LDO_ASS + regoffs, bit_pos);
999         else
1000                 ret = tps65910_clear_bits(mfd,
1001                                 TPS65910_EN1_LDO_ASS + regoffs, bit_pos);
1002         if (ret < 0) {
1003                 dev_err(mfd->dev,
1004                         "Error in configuring external control EN1\n");
1005                 return ret;
1006         }
1007
1008         /* External EN2 control */
1009         if (ext_sleep_config & TPS65910_SLEEP_CONTROL_EXT_INPUT_EN2)
1010                 ret = tps65910_set_bits(mfd,
1011                                 TPS65910_EN2_LDO_ASS + regoffs, bit_pos);
1012         else
1013                 ret = tps65910_clear_bits(mfd,
1014                                 TPS65910_EN2_LDO_ASS + regoffs, bit_pos);
1015         if (ret < 0) {
1016                 dev_err(mfd->dev,
1017                         "Error in configuring external control EN2\n");
1018                 return ret;
1019         }
1020
1021         /* External EN3 control for TPS65910 LDO only */
1022         if ((tps65910_chip_id(mfd) == TPS65910) &&
1023                         (id >= TPS65910_REG_VDIG1)) {
1024                 if (ext_sleep_config & TPS65910_SLEEP_CONTROL_EXT_INPUT_EN3)
1025                         ret = tps65910_set_bits(mfd,
1026                                 TPS65910_EN3_LDO_ASS + regoffs, bit_pos);
1027                 else
1028                         ret = tps65910_clear_bits(mfd,
1029                                 TPS65910_EN3_LDO_ASS + regoffs, bit_pos);
1030                 if (ret < 0) {
1031                         dev_err(mfd->dev,
1032                                 "Error in configuring external control EN3\n");
1033                         return ret;
1034                 }
1035         }
1036
1037         /* Return if no external control is selected */
1038         if (!(ext_sleep_config & EXT_SLEEP_CONTROL)) {
1039                 /* Clear all sleep controls */
1040                 ret = tps65910_clear_bits(mfd,
1041                         TPS65910_SLEEP_KEEP_LDO_ON + regoffs, bit_pos);
1042                 if (!ret)
1043                         ret = tps65910_clear_bits(mfd,
1044                                 TPS65910_SLEEP_SET_LDO_OFF + regoffs, bit_pos);
1045                 if (ret < 0)
1046                         dev_err(mfd->dev,
1047                                 "Error in configuring SLEEP register\n");
1048                 return ret;
1049         }
1050
1051         /*
1052          * For regulator that has separate operational and sleep register make
1053          * sure that operational is used and clear sleep register to turn
1054          * regulator off when external control is inactive
1055          */
1056         if ((id == TPS65910_REG_VDD1) ||
1057                 (id == TPS65910_REG_VDD2) ||
1058                         ((id == TPS65911_REG_VDDCTRL) &&
1059                                 (tps65910_chip_id(mfd) == TPS65911))) {
1060                 int op_reg_add = pmic->get_ctrl_reg(id) + 1;
1061                 int sr_reg_add = pmic->get_ctrl_reg(id) + 2;
1062                 int opvsel = tps65910_reg_read(pmic, op_reg_add);
1063                 int srvsel = tps65910_reg_read(pmic, sr_reg_add);
1064                 if (opvsel & VDD1_OP_CMD_MASK) {
1065                         u8 reg_val = srvsel & VDD1_OP_SEL_MASK;
1066                         ret = tps65910_reg_write(pmic, op_reg_add, reg_val);
1067                         if (ret < 0) {
1068                                 dev_err(mfd->dev,
1069                                         "Error in configuring op register\n");
1070                                 return ret;
1071                         }
1072                 }
1073                 ret = tps65910_reg_write(pmic, sr_reg_add, 0);
1074                 if (ret < 0) {
1075                         dev_err(mfd->dev, "Error in settting sr register\n");
1076                         return ret;
1077                 }
1078         }
1079
1080         ret = tps65910_clear_bits(mfd,
1081                         TPS65910_SLEEP_KEEP_LDO_ON + regoffs, bit_pos);
1082         if (!ret) {
1083                 if (ext_sleep_config & TPS65911_SLEEP_CONTROL_EXT_INPUT_SLEEP)
1084                         ret = tps65910_set_bits(mfd,
1085                                 TPS65910_SLEEP_SET_LDO_OFF + regoffs, bit_pos);
1086                 else
1087                         ret = tps65910_clear_bits(mfd,
1088                                 TPS65910_SLEEP_SET_LDO_OFF + regoffs, bit_pos);
1089         }
1090         if (ret < 0)
1091                 dev_err(mfd->dev,
1092                         "Error in configuring SLEEP register\n");
1093
1094         return ret;
1095 }
1096
1097 static __devinit int tps65910_probe(struct platform_device *pdev)
1098 {
1099         struct tps65910 *tps65910 = dev_get_drvdata(pdev->dev.parent);
1100         struct tps_info *info;
1101         struct regulator_init_data *reg_data;
1102         struct regulator_dev *rdev;
1103         struct tps65910_reg *pmic;
1104         struct tps65910_board *pmic_plat_data;
1105         int i, err;
1106
1107         pmic_plat_data = dev_get_platdata(tps65910->dev);
1108         if (!pmic_plat_data)
1109                 return -EINVAL;
1110
1111         pmic = kzalloc(sizeof(*pmic), GFP_KERNEL);
1112         if (!pmic)
1113                 return -ENOMEM;
1114
1115         mutex_init(&pmic->mutex);
1116         pmic->mfd = tps65910;
1117         platform_set_drvdata(pdev, pmic);
1118
1119         /* Give control of all register to control port */
1120         tps65910_set_bits(pmic->mfd, TPS65910_DEVCTRL,
1121                                 DEVCTRL_SR_CTL_I2C_SEL_MASK);
1122
1123         switch(tps65910_chip_id(tps65910)) {
1124         case TPS65910:
1125                 pmic->get_ctrl_reg = &tps65910_get_ctrl_register;
1126                 pmic->num_regulators = ARRAY_SIZE(tps65910_regs);
1127                 pmic->ext_sleep_control = tps65910_ext_sleep_control;
1128                 info = tps65910_regs;
1129                 break;
1130         case TPS65911:
1131                 pmic->get_ctrl_reg = &tps65911_get_ctrl_register;
1132                 pmic->num_regulators = ARRAY_SIZE(tps65911_regs);
1133                 pmic->ext_sleep_control = tps65911_ext_sleep_control;
1134                 info = tps65911_regs;
1135                 break;
1136         default:
1137                 pr_err("Invalid tps chip version\n");
1138                 kfree(pmic);
1139                 return -ENODEV;
1140         }
1141
1142         pmic->desc = kcalloc(pmic->num_regulators,
1143                         sizeof(struct regulator_desc), GFP_KERNEL);
1144         if (!pmic->desc) {
1145                 err = -ENOMEM;
1146                 goto err_free_pmic;
1147         }
1148
1149         pmic->info = kcalloc(pmic->num_regulators,
1150                         sizeof(struct tps_info *), GFP_KERNEL);
1151         if (!pmic->info) {
1152                 err = -ENOMEM;
1153                 goto err_free_desc;
1154         }
1155
1156         pmic->rdev = kcalloc(pmic->num_regulators,
1157                         sizeof(struct regulator_dev *), GFP_KERNEL);
1158         if (!pmic->rdev) {
1159                 err = -ENOMEM;
1160                 goto err_free_info;
1161         }
1162
1163         for (i = 0; i < pmic->num_regulators && i < TPS65910_NUM_REGS;
1164                         i++, info++) {
1165
1166                 reg_data = pmic_plat_data->tps65910_pmic_init_data[i];
1167
1168                 /* Regulator API handles empty constraints but not NULL
1169                  * constraints */
1170                 if (!reg_data)
1171                         continue;
1172
1173                 /* Register the regulators */
1174                 pmic->info[i] = info;
1175
1176                 pmic->desc[i].name = info->name;
1177                 pmic->desc[i].id = i;
1178                 pmic->desc[i].n_voltages = info->n_voltages;
1179
1180                 if (i == TPS65910_REG_VDD1 || i == TPS65910_REG_VDD2) {
1181                         pmic->desc[i].ops = &tps65910_ops_dcdc;
1182                         pmic->desc[i].n_voltages = VDD1_2_NUM_VOLT_FINE *
1183                                                         VDD1_2_NUM_VOLT_COARSE;
1184                 } else if (i == TPS65910_REG_VDD3) {
1185                         if (tps65910_chip_id(tps65910) == TPS65910)
1186                                 pmic->desc[i].ops = &tps65910_ops_vdd3;
1187                         else
1188                                 pmic->desc[i].ops = &tps65910_ops_dcdc;
1189                 } else {
1190                         if (tps65910_chip_id(tps65910) == TPS65910)
1191                                 pmic->desc[i].ops = &tps65910_ops;
1192                         else
1193                                 pmic->desc[i].ops = &tps65911_ops;
1194                 }
1195
1196                 err = tps65910_set_ext_sleep_config(pmic, i,
1197                                 pmic_plat_data->regulator_ext_sleep_control[i]);
1198                 /*
1199                  * Failing on regulator for configuring externally control
1200                  * is not a serious issue, just throw warning.
1201                  */
1202                 if (err < 0)
1203                         dev_warn(tps65910->dev,
1204                                 "Failed to initialise ext control config\n");
1205
1206                 pmic->desc[i].type = REGULATOR_VOLTAGE;
1207                 pmic->desc[i].owner = THIS_MODULE;
1208
1209                 rdev = regulator_register(&pmic->desc[i],
1210                                 tps65910->dev, reg_data, pmic, NULL);
1211                 if (IS_ERR(rdev)) {
1212                         dev_err(tps65910->dev,
1213                                 "failed to register %s regulator\n",
1214                                 pdev->name);
1215                         err = PTR_ERR(rdev);
1216                         goto err_unregister_regulator;
1217                 }
1218
1219                 /* Save regulator for cleanup */
1220                 pmic->rdev[i] = rdev;
1221         }
1222         return 0;
1223
1224 err_unregister_regulator:
1225         while (--i >= 0)
1226                 regulator_unregister(pmic->rdev[i]);
1227         kfree(pmic->rdev);
1228 err_free_info:
1229         kfree(pmic->info);
1230 err_free_desc:
1231         kfree(pmic->desc);
1232 err_free_pmic:
1233         kfree(pmic);
1234         return err;
1235 }
1236
1237 static int __devexit tps65910_remove(struct platform_device *pdev)
1238 {
1239         struct tps65910_reg *pmic = platform_get_drvdata(pdev);
1240         int i;
1241
1242         for (i = 0; i < pmic->num_regulators; i++)
1243                 regulator_unregister(pmic->rdev[i]);
1244
1245         kfree(pmic->rdev);
1246         kfree(pmic->info);
1247         kfree(pmic->desc);
1248         kfree(pmic);
1249         return 0;
1250 }
1251
1252 static void tps65910_shutdown(struct platform_device *pdev)
1253 {
1254         struct tps65910_reg *pmic = platform_get_drvdata(pdev);
1255         int i;
1256
1257         /*
1258          * Before bootloader jumps to kernel, it makes sure that required
1259          * external control signals are in desired state so that given rails
1260          * can be configure accordingly.
1261          * If rails are configured to be controlled from external control
1262          * then before shutting down/rebooting the system, the external
1263          * control configuration need to be remove from the rails so that
1264          * its output will be available as per register programming even
1265          * if external controls are removed. This is require when the POR
1266          * value of the control signals are not in active state and before
1267          * bootloader initializes it, the system requires the rail output
1268          * to be active for booting.
1269          */
1270         for (i = 0; i < pmic->num_regulators; i++) {
1271                 int err;
1272                 if (!pmic->rdev[i])
1273                         continue;
1274
1275                 err = tps65910_set_ext_sleep_config(pmic, i, 0);
1276                 if (err < 0)
1277                         dev_err(&pdev->dev,
1278                                 "Error in clearing external control\n");
1279         }
1280 }
1281
1282 static struct platform_driver tps65910_driver = {
1283         .driver = {
1284                 .name = "tps65910-pmic",
1285                 .owner = THIS_MODULE,
1286         },
1287         .probe = tps65910_probe,
1288         .remove = __devexit_p(tps65910_remove),
1289         .shutdown = tps65910_shutdown,
1290 };
1291
1292 static int __init tps65910_init(void)
1293 {
1294         return platform_driver_register(&tps65910_driver);
1295 }
1296 subsys_initcall(tps65910_init);
1297
1298 static void __exit tps65910_cleanup(void)
1299 {
1300         platform_driver_unregister(&tps65910_driver);
1301 }
1302 module_exit(tps65910_cleanup);
1303
1304 MODULE_AUTHOR("Graeme Gregory <gg@slimlogic.co.uk>");
1305 MODULE_DESCRIPTION("TPS65910/TPS65911 voltage regulator driver");
1306 MODULE_LICENSE("GPL v2");
1307 MODULE_ALIAS("platform:tps65910-pmic");