regulator: tps6507x: Remove num_voltages array
[linux-2.6.git] / drivers / regulator / tps6507x-regulator.c
1 /*
2  * tps6507x-regulator.c
3  *
4  * Regulator driver for TPS65073 PMIC
5  *
6  * Copyright (C) 2009 Texas Instrument Incorporated - http://www.ti.com/
7  *
8  * This program is free software; you can redistribute it and/or
9  * modify it under the terms of the GNU General Public License as
10  * published by the Free Software Foundation version 2.
11  *
12  * This program is distributed "as is" WITHOUT ANY WARRANTY of any kind,
13  * whether express or implied; without even the implied warranty of
14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
15  * General Public License for more details.
16  */
17
18 #include <linux/kernel.h>
19 #include <linux/module.h>
20 #include <linux/init.h>
21 #include <linux/err.h>
22 #include <linux/platform_device.h>
23 #include <linux/regulator/driver.h>
24 #include <linux/regulator/machine.h>
25 #include <linux/regulator/tps6507x.h>
26 #include <linux/delay.h>
27 #include <linux/slab.h>
28 #include <linux/mfd/tps6507x.h>
29
30 /* DCDC's */
31 #define TPS6507X_DCDC_1                         0
32 #define TPS6507X_DCDC_2                         1
33 #define TPS6507X_DCDC_3                         2
34 /* LDOs */
35 #define TPS6507X_LDO_1                          3
36 #define TPS6507X_LDO_2                          4
37
38 #define TPS6507X_MAX_REG_ID                     TPS6507X_LDO_2
39
40 /* Number of step-down converters available */
41 #define TPS6507X_NUM_DCDC                       3
42 /* Number of LDO voltage regulators  available */
43 #define TPS6507X_NUM_LDO                        2
44 /* Number of total regulators available */
45 #define TPS6507X_NUM_REGULATOR          (TPS6507X_NUM_DCDC + TPS6507X_NUM_LDO)
46
47 /* Supported voltage values for regulators (in milliVolts) */
48 static const u16 VDCDCx_VSEL_table[] = {
49         725, 750, 775, 800,
50         825, 850, 875, 900,
51         925, 950, 975, 1000,
52         1025, 1050, 1075, 1100,
53         1125, 1150, 1175, 1200,
54         1225, 1250, 1275, 1300,
55         1325, 1350, 1375, 1400,
56         1425, 1450, 1475, 1500,
57         1550, 1600, 1650, 1700,
58         1750, 1800, 1850, 1900,
59         1950, 2000, 2050, 2100,
60         2150, 2200, 2250, 2300,
61         2350, 2400, 2450, 2500,
62         2550, 2600, 2650, 2700,
63         2750, 2800, 2850, 2900,
64         3000, 3100, 3200, 3300,
65 };
66
67 static const u16 LDO1_VSEL_table[] = {
68         1000, 1100, 1200, 1250,
69         1300, 1350, 1400, 1500,
70         1600, 1800, 2500, 2750,
71         2800, 3000, 3100, 3300,
72 };
73
74 static const u16 LDO2_VSEL_table[] = {
75         725, 750, 775, 800,
76         825, 850, 875, 900,
77         925, 950, 975, 1000,
78         1025, 1050, 1075, 1100,
79         1125, 1150, 1175, 1200,
80         1225, 1250, 1275, 1300,
81         1325, 1350, 1375, 1400,
82         1425, 1450, 1475, 1500,
83         1550, 1600, 1650, 1700,
84         1750, 1800, 1850, 1900,
85         1950, 2000, 2050, 2100,
86         2150, 2200, 2250, 2300,
87         2350, 2400, 2450, 2500,
88         2550, 2600, 2650, 2700,
89         2750, 2800, 2850, 2900,
90         3000, 3100, 3200, 3300,
91 };
92
93 struct tps_info {
94         const char *name;
95         unsigned min_uV;
96         unsigned max_uV;
97         u8 table_len;
98         const u16 *table;
99
100         /* Does DCDC high or the low register defines output voltage? */
101         bool defdcdc_default;
102 };
103
104 static struct tps_info tps6507x_pmic_regs[] = {
105         {
106                 .name = "VDCDC1",
107                 .min_uV = 725000,
108                 .max_uV = 3300000,
109                 .table_len = ARRAY_SIZE(VDCDCx_VSEL_table),
110                 .table = VDCDCx_VSEL_table,
111         },
112         {
113                 .name = "VDCDC2",
114                 .min_uV = 725000,
115                 .max_uV = 3300000,
116                 .table_len = ARRAY_SIZE(VDCDCx_VSEL_table),
117                 .table = VDCDCx_VSEL_table,
118         },
119         {
120                 .name = "VDCDC3",
121                 .min_uV = 725000,
122                 .max_uV = 3300000,
123                 .table_len = ARRAY_SIZE(VDCDCx_VSEL_table),
124                 .table = VDCDCx_VSEL_table,
125         },
126         {
127                 .name = "LDO1",
128                 .min_uV = 1000000,
129                 .max_uV = 3300000,
130                 .table_len = ARRAY_SIZE(LDO1_VSEL_table),
131                 .table = LDO1_VSEL_table,
132         },
133         {
134                 .name = "LDO2",
135                 .min_uV = 725000,
136                 .max_uV = 3300000,
137                 .table_len = ARRAY_SIZE(LDO2_VSEL_table),
138                 .table = LDO2_VSEL_table,
139         },
140 };
141
142 struct tps6507x_pmic {
143         struct regulator_desc desc[TPS6507X_NUM_REGULATOR];
144         struct tps6507x_dev *mfd;
145         struct regulator_dev *rdev[TPS6507X_NUM_REGULATOR];
146         struct tps_info *info[TPS6507X_NUM_REGULATOR];
147         struct mutex io_lock;
148 };
149 static inline int tps6507x_pmic_read(struct tps6507x_pmic *tps, u8 reg)
150 {
151         u8 val;
152         int err;
153
154         err = tps->mfd->read_dev(tps->mfd, reg, 1, &val);
155
156         if (err)
157                 return err;
158
159         return val;
160 }
161
162 static inline int tps6507x_pmic_write(struct tps6507x_pmic *tps, u8 reg, u8 val)
163 {
164         return tps->mfd->write_dev(tps->mfd, reg, 1, &val);
165 }
166
167 static int tps6507x_pmic_set_bits(struct tps6507x_pmic *tps, u8 reg, u8 mask)
168 {
169         int err, data;
170
171         mutex_lock(&tps->io_lock);
172
173         data = tps6507x_pmic_read(tps, reg);
174         if (data < 0) {
175                 dev_err(tps->mfd->dev, "Read from reg 0x%x failed\n", reg);
176                 err = data;
177                 goto out;
178         }
179
180         data |= mask;
181         err = tps6507x_pmic_write(tps, reg, data);
182         if (err)
183                 dev_err(tps->mfd->dev, "Write for reg 0x%x failed\n", reg);
184
185 out:
186         mutex_unlock(&tps->io_lock);
187         return err;
188 }
189
190 static int tps6507x_pmic_clear_bits(struct tps6507x_pmic *tps, u8 reg, u8 mask)
191 {
192         int err, data;
193
194         mutex_lock(&tps->io_lock);
195
196         data = tps6507x_pmic_read(tps, reg);
197         if (data < 0) {
198                 dev_err(tps->mfd->dev, "Read from reg 0x%x failed\n", reg);
199                 err = data;
200                 goto out;
201         }
202
203         data &= ~mask;
204         err = tps6507x_pmic_write(tps, reg, data);
205         if (err)
206                 dev_err(tps->mfd->dev, "Write for reg 0x%x failed\n", reg);
207
208 out:
209         mutex_unlock(&tps->io_lock);
210         return err;
211 }
212
213 static int tps6507x_pmic_reg_read(struct tps6507x_pmic *tps, u8 reg)
214 {
215         int data;
216
217         mutex_lock(&tps->io_lock);
218
219         data = tps6507x_pmic_read(tps, reg);
220         if (data < 0)
221                 dev_err(tps->mfd->dev, "Read from reg 0x%x failed\n", reg);
222
223         mutex_unlock(&tps->io_lock);
224         return data;
225 }
226
227 static int tps6507x_pmic_reg_write(struct tps6507x_pmic *tps, u8 reg, u8 val)
228 {
229         int err;
230
231         mutex_lock(&tps->io_lock);
232
233         err = tps6507x_pmic_write(tps, reg, val);
234         if (err < 0)
235                 dev_err(tps->mfd->dev, "Write for reg 0x%x failed\n", reg);
236
237         mutex_unlock(&tps->io_lock);
238         return err;
239 }
240
241 static int tps6507x_pmic_dcdc_is_enabled(struct regulator_dev *dev)
242 {
243         struct tps6507x_pmic *tps = rdev_get_drvdata(dev);
244         int data, dcdc = rdev_get_id(dev);
245         u8 shift;
246
247         if (dcdc < TPS6507X_DCDC_1 || dcdc > TPS6507X_DCDC_3)
248                 return -EINVAL;
249
250         shift = TPS6507X_MAX_REG_ID - dcdc;
251         data = tps6507x_pmic_reg_read(tps, TPS6507X_REG_CON_CTRL1);
252
253         if (data < 0)
254                 return data;
255         else
256                 return (data & 1<<shift) ? 1 : 0;
257 }
258
259 static int tps6507x_pmic_ldo_is_enabled(struct regulator_dev *dev)
260 {
261         struct tps6507x_pmic *tps = rdev_get_drvdata(dev);
262         int data, ldo = rdev_get_id(dev);
263         u8 shift;
264
265         if (ldo < TPS6507X_LDO_1 || ldo > TPS6507X_LDO_2)
266                 return -EINVAL;
267
268         shift = TPS6507X_MAX_REG_ID - ldo;
269         data = tps6507x_pmic_reg_read(tps, TPS6507X_REG_CON_CTRL1);
270
271         if (data < 0)
272                 return data;
273         else
274                 return (data & 1<<shift) ? 1 : 0;
275 }
276
277 static int tps6507x_pmic_dcdc_enable(struct regulator_dev *dev)
278 {
279         struct tps6507x_pmic *tps = rdev_get_drvdata(dev);
280         int dcdc = rdev_get_id(dev);
281         u8 shift;
282
283         if (dcdc < TPS6507X_DCDC_1 || dcdc > TPS6507X_DCDC_3)
284                 return -EINVAL;
285
286         shift = TPS6507X_MAX_REG_ID - dcdc;
287         return tps6507x_pmic_set_bits(tps, TPS6507X_REG_CON_CTRL1, 1 << shift);
288 }
289
290 static int tps6507x_pmic_dcdc_disable(struct regulator_dev *dev)
291 {
292         struct tps6507x_pmic *tps = rdev_get_drvdata(dev);
293         int dcdc = rdev_get_id(dev);
294         u8 shift;
295
296         if (dcdc < TPS6507X_DCDC_1 || dcdc > TPS6507X_DCDC_3)
297                 return -EINVAL;
298
299         shift = TPS6507X_MAX_REG_ID - dcdc;
300         return tps6507x_pmic_clear_bits(tps, TPS6507X_REG_CON_CTRL1,
301                                         1 << shift);
302 }
303
304 static int tps6507x_pmic_ldo_enable(struct regulator_dev *dev)
305 {
306         struct tps6507x_pmic *tps = rdev_get_drvdata(dev);
307         int ldo = rdev_get_id(dev);
308         u8 shift;
309
310         if (ldo < TPS6507X_LDO_1 || ldo > TPS6507X_LDO_2)
311                 return -EINVAL;
312
313         shift = TPS6507X_MAX_REG_ID - ldo;
314         return tps6507x_pmic_set_bits(tps, TPS6507X_REG_CON_CTRL1, 1 << shift);
315 }
316
317 static int tps6507x_pmic_ldo_disable(struct regulator_dev *dev)
318 {
319         struct tps6507x_pmic *tps = rdev_get_drvdata(dev);
320         int ldo = rdev_get_id(dev);
321         u8 shift;
322
323         if (ldo < TPS6507X_LDO_1 || ldo > TPS6507X_LDO_2)
324                 return -EINVAL;
325
326         shift = TPS6507X_MAX_REG_ID - ldo;
327         return tps6507x_pmic_clear_bits(tps, TPS6507X_REG_CON_CTRL1,
328                                         1 << shift);
329 }
330
331 static int tps6507x_pmic_dcdc_get_voltage(struct regulator_dev *dev)
332 {
333         struct tps6507x_pmic *tps = rdev_get_drvdata(dev);
334         int data, dcdc = rdev_get_id(dev);
335         u8 reg;
336
337         switch (dcdc) {
338         case TPS6507X_DCDC_1:
339                 reg = TPS6507X_REG_DEFDCDC1;
340                 break;
341         case TPS6507X_DCDC_2:
342                 if (tps->info[dcdc]->defdcdc_default)
343                         reg = TPS6507X_REG_DEFDCDC2_HIGH;
344                 else
345                         reg = TPS6507X_REG_DEFDCDC2_LOW;
346                 break;
347         case TPS6507X_DCDC_3:
348                 if (tps->info[dcdc]->defdcdc_default)
349                         reg = TPS6507X_REG_DEFDCDC3_HIGH;
350                 else
351                         reg = TPS6507X_REG_DEFDCDC3_LOW;
352                 break;
353         default:
354                 return -EINVAL;
355         }
356
357         data = tps6507x_pmic_reg_read(tps, reg);
358         if (data < 0)
359                 return data;
360
361         data &= TPS6507X_DEFDCDCX_DCDC_MASK;
362         return tps->info[dcdc]->table[data] * 1000;
363 }
364
365 static int tps6507x_pmic_dcdc_set_voltage(struct regulator_dev *dev,
366                                           int min_uV, int max_uV,
367                                           unsigned *selector)
368 {
369         struct tps6507x_pmic *tps = rdev_get_drvdata(dev);
370         int data, vsel, dcdc = rdev_get_id(dev);
371         u8 reg;
372
373         switch (dcdc) {
374         case TPS6507X_DCDC_1:
375                 reg = TPS6507X_REG_DEFDCDC1;
376                 break;
377         case TPS6507X_DCDC_2:
378                 if (tps->info[dcdc]->defdcdc_default)
379                         reg = TPS6507X_REG_DEFDCDC2_HIGH;
380                 else
381                         reg = TPS6507X_REG_DEFDCDC2_LOW;
382                 break;
383         case TPS6507X_DCDC_3:
384                 if (tps->info[dcdc]->defdcdc_default)
385                         reg = TPS6507X_REG_DEFDCDC3_HIGH;
386                 else
387                         reg = TPS6507X_REG_DEFDCDC3_LOW;
388                 break;
389         default:
390                 return -EINVAL;
391         }
392
393         if (min_uV < tps->info[dcdc]->min_uV
394                 || min_uV > tps->info[dcdc]->max_uV)
395                 return -EINVAL;
396         if (max_uV < tps->info[dcdc]->min_uV
397                 || max_uV > tps->info[dcdc]->max_uV)
398                 return -EINVAL;
399
400         for (vsel = 0; vsel < tps->info[dcdc]->table_len; vsel++) {
401                 int mV = tps->info[dcdc]->table[vsel];
402                 int uV = mV * 1000;
403
404                 /* Break at the first in-range value */
405                 if (min_uV <= uV && uV <= max_uV)
406                         break;
407         }
408
409         /* write to the register in case we found a match */
410         if (vsel == tps->info[dcdc]->table_len)
411                 return -EINVAL;
412
413         *selector = vsel;
414
415         data = tps6507x_pmic_reg_read(tps, reg);
416         if (data < 0)
417                 return data;
418
419         data &= ~TPS6507X_DEFDCDCX_DCDC_MASK;
420         data |= vsel;
421
422         return tps6507x_pmic_reg_write(tps, reg, data);
423 }
424
425 static int tps6507x_pmic_ldo_get_voltage(struct regulator_dev *dev)
426 {
427         struct tps6507x_pmic *tps = rdev_get_drvdata(dev);
428         int data, ldo = rdev_get_id(dev);
429         u8 reg, mask;
430
431         if (ldo < TPS6507X_LDO_1 || ldo > TPS6507X_LDO_2)
432                 return -EINVAL;
433         else {
434                 reg = (ldo == TPS6507X_LDO_1 ?
435                         TPS6507X_REG_LDO_CTRL1 : TPS6507X_REG_DEFLDO2);
436                 mask = (ldo == TPS6507X_LDO_1 ?
437                         TPS6507X_REG_LDO_CTRL1_LDO1_MASK :
438                                 TPS6507X_REG_DEFLDO2_LDO2_MASK);
439         }
440
441         data = tps6507x_pmic_reg_read(tps, reg);
442         if (data < 0)
443                 return data;
444
445         data &= mask;
446         return tps->info[ldo]->table[data] * 1000;
447 }
448
449 static int tps6507x_pmic_ldo_set_voltage(struct regulator_dev *dev,
450                                          int min_uV, int max_uV,
451                                          unsigned *selector)
452 {
453         struct tps6507x_pmic *tps = rdev_get_drvdata(dev);
454         int data, vsel, ldo = rdev_get_id(dev);
455         u8 reg, mask;
456
457         if (ldo < TPS6507X_LDO_1 || ldo > TPS6507X_LDO_2)
458                 return -EINVAL;
459         else {
460                 reg = (ldo == TPS6507X_LDO_1 ?
461                         TPS6507X_REG_LDO_CTRL1 : TPS6507X_REG_DEFLDO2);
462                 mask = (ldo == TPS6507X_LDO_1 ?
463                         TPS6507X_REG_LDO_CTRL1_LDO1_MASK :
464                                 TPS6507X_REG_DEFLDO2_LDO2_MASK);
465         }
466
467         if (min_uV < tps->info[ldo]->min_uV || min_uV > tps->info[ldo]->max_uV)
468                 return -EINVAL;
469         if (max_uV < tps->info[ldo]->min_uV || max_uV > tps->info[ldo]->max_uV)
470                 return -EINVAL;
471
472         for (vsel = 0; vsel < tps->info[ldo]->table_len; vsel++) {
473                 int mV = tps->info[ldo]->table[vsel];
474                 int uV = mV * 1000;
475
476                 /* Break at the first in-range value */
477                 if (min_uV <= uV && uV <= max_uV)
478                         break;
479         }
480
481         if (vsel == tps->info[ldo]->table_len)
482                 return -EINVAL;
483
484         *selector = vsel;
485
486         data = tps6507x_pmic_reg_read(tps, reg);
487         if (data < 0)
488                 return data;
489
490         data &= ~mask;
491         data |= vsel;
492
493         return tps6507x_pmic_reg_write(tps, reg, data);
494 }
495
496 static int tps6507x_pmic_dcdc_list_voltage(struct regulator_dev *dev,
497                                         unsigned selector)
498 {
499         struct tps6507x_pmic *tps = rdev_get_drvdata(dev);
500         int dcdc = rdev_get_id(dev);
501
502         if (dcdc < TPS6507X_DCDC_1 || dcdc > TPS6507X_DCDC_3)
503                 return -EINVAL;
504
505         if (selector >= tps->info[dcdc]->table_len)
506                 return -EINVAL;
507         else
508                 return tps->info[dcdc]->table[selector] * 1000;
509 }
510
511 static int tps6507x_pmic_ldo_list_voltage(struct regulator_dev *dev,
512                                         unsigned selector)
513 {
514         struct tps6507x_pmic *tps = rdev_get_drvdata(dev);
515         int ldo = rdev_get_id(dev);
516
517         if (ldo < TPS6507X_LDO_1 || ldo > TPS6507X_LDO_2)
518                 return -EINVAL;
519
520         if (selector >= tps->info[ldo]->table_len)
521                 return -EINVAL;
522         else
523                 return tps->info[ldo]->table[selector] * 1000;
524 }
525
526 /* Operations permitted on VDCDCx */
527 static struct regulator_ops tps6507x_pmic_dcdc_ops = {
528         .is_enabled = tps6507x_pmic_dcdc_is_enabled,
529         .enable = tps6507x_pmic_dcdc_enable,
530         .disable = tps6507x_pmic_dcdc_disable,
531         .get_voltage = tps6507x_pmic_dcdc_get_voltage,
532         .set_voltage = tps6507x_pmic_dcdc_set_voltage,
533         .list_voltage = tps6507x_pmic_dcdc_list_voltage,
534 };
535
536 /* Operations permitted on LDOx */
537 static struct regulator_ops tps6507x_pmic_ldo_ops = {
538         .is_enabled = tps6507x_pmic_ldo_is_enabled,
539         .enable = tps6507x_pmic_ldo_enable,
540         .disable = tps6507x_pmic_ldo_disable,
541         .get_voltage = tps6507x_pmic_ldo_get_voltage,
542         .set_voltage = tps6507x_pmic_ldo_set_voltage,
543         .list_voltage = tps6507x_pmic_ldo_list_voltage,
544 };
545
546 static __devinit
547 int tps6507x_pmic_probe(struct platform_device *pdev)
548 {
549         struct tps6507x_dev *tps6507x_dev = dev_get_drvdata(pdev->dev.parent);
550         struct tps_info *info = &tps6507x_pmic_regs[0];
551         struct regulator_init_data *init_data;
552         struct regulator_dev *rdev;
553         struct tps6507x_pmic *tps;
554         struct tps6507x_board *tps_board;
555         int i;
556         int error;
557
558         /**
559          * tps_board points to pmic related constants
560          * coming from the board-evm file.
561          */
562
563         tps_board = dev_get_platdata(tps6507x_dev->dev);
564         if (!tps_board)
565                 return -EINVAL;
566
567         /**
568          * init_data points to array of regulator_init structures
569          * coming from the board-evm file.
570          */
571         init_data = tps_board->tps6507x_pmic_init_data;
572         if (!init_data)
573                 return -EINVAL;
574
575         tps = kzalloc(sizeof(*tps), GFP_KERNEL);
576         if (!tps)
577                 return -ENOMEM;
578
579         mutex_init(&tps->io_lock);
580
581         /* common for all regulators */
582         tps->mfd = tps6507x_dev;
583
584         for (i = 0; i < TPS6507X_NUM_REGULATOR; i++, info++, init_data++) {
585                 /* Register the regulators */
586                 tps->info[i] = info;
587                 if (init_data->driver_data) {
588                         struct tps6507x_reg_platform_data *data =
589                                                         init_data->driver_data;
590                         tps->info[i]->defdcdc_default = data->defdcdc_default;
591                 }
592
593                 tps->desc[i].name = info->name;
594                 tps->desc[i].id = i;
595                 tps->desc[i].n_voltages = info->table_len;
596                 tps->desc[i].ops = (i > TPS6507X_DCDC_3 ?
597                 &tps6507x_pmic_ldo_ops : &tps6507x_pmic_dcdc_ops);
598                 tps->desc[i].type = REGULATOR_VOLTAGE;
599                 tps->desc[i].owner = THIS_MODULE;
600
601                 rdev = regulator_register(&tps->desc[i],
602                                         tps6507x_dev->dev, init_data, tps);
603                 if (IS_ERR(rdev)) {
604                         dev_err(tps6507x_dev->dev,
605                                 "failed to register %s regulator\n",
606                                 pdev->name);
607                         error = PTR_ERR(rdev);
608                         goto fail;
609                 }
610
611                 /* Save regulator for cleanup */
612                 tps->rdev[i] = rdev;
613         }
614
615         tps6507x_dev->pmic = tps;
616         platform_set_drvdata(pdev, tps6507x_dev);
617
618         return 0;
619
620 fail:
621         while (--i >= 0)
622                 regulator_unregister(tps->rdev[i]);
623
624         kfree(tps);
625         return error;
626 }
627
628 static int __devexit tps6507x_pmic_remove(struct platform_device *pdev)
629 {
630         struct tps6507x_dev *tps6507x_dev = platform_get_drvdata(pdev);
631         struct tps6507x_pmic *tps = tps6507x_dev->pmic;
632         int i;
633
634         for (i = 0; i < TPS6507X_NUM_REGULATOR; i++)
635                 regulator_unregister(tps->rdev[i]);
636
637         kfree(tps);
638
639         return 0;
640 }
641
642 static struct platform_driver tps6507x_pmic_driver = {
643         .driver = {
644                 .name = "tps6507x-pmic",
645                 .owner = THIS_MODULE,
646         },
647         .probe = tps6507x_pmic_probe,
648         .remove = __devexit_p(tps6507x_pmic_remove),
649 };
650
651 /**
652  * tps6507x_pmic_init
653  *
654  * Module init function
655  */
656 static int __init tps6507x_pmic_init(void)
657 {
658         return platform_driver_register(&tps6507x_pmic_driver);
659 }
660 subsys_initcall(tps6507x_pmic_init);
661
662 /**
663  * tps6507x_pmic_cleanup
664  *
665  * Module exit function
666  */
667 static void __exit tps6507x_pmic_cleanup(void)
668 {
669         platform_driver_unregister(&tps6507x_pmic_driver);
670 }
671 module_exit(tps6507x_pmic_cleanup);
672
673 MODULE_AUTHOR("Texas Instruments");
674 MODULE_DESCRIPTION("TPS6507x voltage regulator driver");
675 MODULE_LICENSE("GPL v2");
676 MODULE_ALIAS("platform:tps6507x-pmic");