Version:  2.0.40 2.2.26 2.4.37 3.2 3.3 3.4 3.5 3.6 3.7 3.8 3.9 3.10 3.11 3.12 3.13 3.14 3.15 3.16 3.17 3.18

Linux/drivers/power/max14577_charger.c

  1 /*
  2  * max14577_charger.c - Battery charger driver for the Maxim 14577/77836
  3  *
  4  * Copyright (C) 2013,2014 Samsung Electronics
  5  * Krzysztof Kozlowski <k.kozlowski@samsung.com>
  6  *
  7  * This program is free software; you can redistribute it and/or modify
  8  * it under the terms of the GNU General Public License as published by
  9  * the Free Software Foundation; either version 2 of the License, or
 10  * (at your option) any later version.
 11  *
 12  * This program is distributed in the hope that it will be useful,
 13  * but WITHOUT ANY WARRANTY; without even the implied warranty of
 14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 15  * GNU General Public License for more details.
 16  */
 17 
 18 #include <linux/module.h>
 19 #include <linux/platform_device.h>
 20 #include <linux/power_supply.h>
 21 #include <linux/mfd/max14577-private.h>
 22 #include <linux/mfd/max14577.h>
 23 
 24 struct max14577_charger {
 25         struct device *dev;
 26         struct max14577 *max14577;
 27         struct power_supply     charger;
 28 
 29         unsigned int            charging_state;
 30         unsigned int            battery_state;
 31 
 32         struct max14577_charger_platform_data   *pdata;
 33 };
 34 
 35 /*
 36  * Helper function for mapping values of STATUS2/CHGTYP register on max14577
 37  * and max77836 chipsets to enum maxim_muic_charger_type.
 38  */
 39 static enum max14577_muic_charger_type maxim_get_charger_type(
 40                 enum maxim_device_type dev_type, u8 val) {
 41         switch (val) {
 42         case MAX14577_CHARGER_TYPE_NONE:
 43         case MAX14577_CHARGER_TYPE_USB:
 44         case MAX14577_CHARGER_TYPE_DOWNSTREAM_PORT:
 45         case MAX14577_CHARGER_TYPE_DEDICATED_CHG:
 46         case MAX14577_CHARGER_TYPE_SPECIAL_500MA:
 47         case MAX14577_CHARGER_TYPE_SPECIAL_1A:
 48                 return val;
 49         case MAX14577_CHARGER_TYPE_DEAD_BATTERY:
 50         case MAX14577_CHARGER_TYPE_RESERVED:
 51                 if (dev_type == MAXIM_DEVICE_TYPE_MAX77836)
 52                         val |= 0x8;
 53                 return val;
 54         default:
 55                 WARN_ONCE(1, "max14577: Unsupported chgtyp register value 0x%02x", val);
 56                 return val;
 57         }
 58 }
 59 
 60 static int max14577_get_charger_state(struct max14577_charger *chg)
 61 {
 62         struct regmap *rmap = chg->max14577->regmap;
 63         int state = POWER_SUPPLY_STATUS_DISCHARGING;
 64         u8 reg_data;
 65 
 66         /*
 67          * Charging occurs only if:
 68          *  - CHGCTRL2/MBCHOSTEN == 1
 69          *  - STATUS2/CGMBC == 1
 70          *
 71          * TODO:
 72          *  - handle FULL after Top-off timer (EOC register may be off
 73          *    and the charger won't be charging although MBCHOSTEN is on)
 74          *  - handle properly dead-battery charging (respect timer)
 75          *  - handle timers (fast-charge and prequal) /MBCCHGERR/
 76          */
 77         max14577_read_reg(rmap, MAX14577_CHG_REG_CHG_CTRL2, &reg_data);
 78         if ((reg_data & CHGCTRL2_MBCHOSTEN_MASK) == 0)
 79                 goto state_set;
 80 
 81         max14577_read_reg(rmap, MAX14577_CHG_REG_STATUS3, &reg_data);
 82         if (reg_data & STATUS3_CGMBC_MASK) {
 83                 /* Charger or USB-cable is connected */
 84                 if (reg_data & STATUS3_EOC_MASK)
 85                         state = POWER_SUPPLY_STATUS_FULL;
 86                 else
 87                         state = POWER_SUPPLY_STATUS_CHARGING;
 88                 goto state_set;
 89         }
 90 
 91 state_set:
 92         chg->charging_state = state;
 93         return state;
 94 }
 95 
 96 /*
 97  * Supported charge types:
 98  *  - POWER_SUPPLY_CHARGE_TYPE_NONE
 99  *  - POWER_SUPPLY_CHARGE_TYPE_FAST
100  */
101 static int max14577_get_charge_type(struct max14577_charger *chg)
102 {
103         /*
104          * TODO: CHARGE_TYPE_TRICKLE (VCHGR_RC or EOC)?
105          * As spec says:
106          * [after reaching EOC interrupt]
107          * "When the battery is fully charged, the 30-minute (typ)
108          *  top-off timer starts. The device continues to trickle
109          *  charge the battery until the top-off timer runs out."
110          */
111         if (max14577_get_charger_state(chg) == POWER_SUPPLY_STATUS_CHARGING)
112                 return POWER_SUPPLY_CHARGE_TYPE_FAST;
113         return POWER_SUPPLY_CHARGE_TYPE_NONE;
114 }
115 
116 static int max14577_get_online(struct max14577_charger *chg)
117 {
118         struct regmap *rmap = chg->max14577->regmap;
119         u8 reg_data;
120         enum max14577_muic_charger_type chg_type;
121 
122         max14577_read_reg(rmap, MAX14577_MUIC_REG_STATUS2, &reg_data);
123         reg_data = ((reg_data & STATUS2_CHGTYP_MASK) >> STATUS2_CHGTYP_SHIFT);
124         chg_type = maxim_get_charger_type(chg->max14577->dev_type, reg_data);
125         switch (chg_type) {
126         case MAX14577_CHARGER_TYPE_USB:
127         case MAX14577_CHARGER_TYPE_DEDICATED_CHG:
128         case MAX14577_CHARGER_TYPE_SPECIAL_500MA:
129         case MAX14577_CHARGER_TYPE_SPECIAL_1A:
130         case MAX14577_CHARGER_TYPE_DEAD_BATTERY:
131         case MAX77836_CHARGER_TYPE_SPECIAL_BIAS:
132                 return 1;
133         case MAX14577_CHARGER_TYPE_NONE:
134         case MAX14577_CHARGER_TYPE_DOWNSTREAM_PORT:
135         case MAX14577_CHARGER_TYPE_RESERVED:
136         case MAX77836_CHARGER_TYPE_RESERVED:
137         default:
138                 return 0;
139         }
140 }
141 
142 /*
143  * Supported health statuses:
144  *  - POWER_SUPPLY_HEALTH_DEAD
145  *  - POWER_SUPPLY_HEALTH_OVERVOLTAGE
146  *  - POWER_SUPPLY_HEALTH_GOOD
147  */
148 static int max14577_get_battery_health(struct max14577_charger *chg)
149 {
150         struct regmap *rmap = chg->max14577->regmap;
151         int state = POWER_SUPPLY_HEALTH_GOOD;
152         u8 reg_data;
153         enum max14577_muic_charger_type chg_type;
154 
155         max14577_read_reg(rmap, MAX14577_MUIC_REG_STATUS2, &reg_data);
156         reg_data = ((reg_data & STATUS2_CHGTYP_MASK) >> STATUS2_CHGTYP_SHIFT);
157         chg_type = maxim_get_charger_type(chg->max14577->dev_type, reg_data);
158         if (chg_type == MAX14577_CHARGER_TYPE_DEAD_BATTERY) {
159                 state = POWER_SUPPLY_HEALTH_DEAD;
160                 goto state_set;
161         }
162 
163         max14577_read_reg(rmap, MAX14577_CHG_REG_STATUS3, &reg_data);
164         if (reg_data & STATUS3_OVP_MASK) {
165                 state = POWER_SUPPLY_HEALTH_OVERVOLTAGE;
166                 goto state_set;
167         }
168 
169 state_set:
170         chg->battery_state = state;
171         return state;
172 }
173 
174 /*
175  * Always returns 1.
176  * The max14577 chip doesn't report any status of battery presence.
177  * Lets assume that it will always be used with some battery.
178  */
179 static int max14577_get_present(struct max14577_charger *chg)
180 {
181         return 1;
182 }
183 
184 static int max14577_set_fast_charge_timer(struct max14577_charger *chg,
185                 unsigned long hours)
186 {
187         u8 reg_data;
188 
189         switch (hours) {
190         case 5 ... 7:
191                 reg_data = hours - 3;
192                 break;
193         case 0:
194                 /* Disable */
195                 reg_data = 0x7;
196                 break;
197         default:
198                 dev_err(chg->dev, "Wrong value for Fast-Charge Timer: %lu\n",
199                                 hours);
200                 return -EINVAL;
201         }
202         reg_data <<= CHGCTRL1_TCHW_SHIFT;
203 
204         return max14577_update_reg(chg->max14577->regmap,
205                         MAX14577_REG_CHGCTRL1, CHGCTRL1_TCHW_MASK, reg_data);
206 }
207 
208 static int max14577_init_constant_voltage(struct max14577_charger *chg,
209                 unsigned int uvolt)
210 {
211         u8 reg_data;
212 
213         if (uvolt < MAXIM_CHARGER_CONSTANT_VOLTAGE_MIN ||
214                         uvolt > MAXIM_CHARGER_CONSTANT_VOLTAGE_MAX)
215                 return -EINVAL;
216 
217         if (uvolt == 4200000)
218                 reg_data = 0x0;
219         else if (uvolt == MAXIM_CHARGER_CONSTANT_VOLTAGE_MAX)
220                 reg_data = 0x1f;
221         else if (uvolt <= 4280000) {
222                 unsigned int val = uvolt;
223 
224                 val -= MAXIM_CHARGER_CONSTANT_VOLTAGE_MIN;
225                 val /= MAXIM_CHARGER_CONSTANT_VOLTAGE_STEP;
226                 if (uvolt <= 4180000)
227                         reg_data = 0x1 + val;
228                 else
229                         reg_data = val; /* Fix for gap between 4.18V and 4.22V */
230         } else
231                 return -EINVAL;
232 
233         reg_data <<= CHGCTRL3_MBCCVWRC_SHIFT;
234 
235         return max14577_write_reg(chg->max14577->regmap,
236                         MAX14577_CHG_REG_CHG_CTRL3, reg_data);
237 }
238 
239 static int max14577_init_eoc(struct max14577_charger *chg,
240                 unsigned int uamp)
241 {
242         unsigned int current_bits = 0xf;
243         u8 reg_data;
244 
245         switch (chg->max14577->dev_type) {
246         case MAXIM_DEVICE_TYPE_MAX77836:
247                 if (uamp < 5000)
248                         return -EINVAL; /* Requested current is too low */
249 
250                 if (uamp >= 7500 && uamp < 10000)
251                         current_bits = 0x0;
252                 else if (uamp <= 50000) {
253                         /* <5000, 7499> and <10000, 50000> */
254                         current_bits = uamp / 5000;
255                 } else {
256                         uamp = min(uamp, 100000U) - 50000U;
257                         current_bits = 0xa + uamp / 10000;
258                 }
259                 break;
260 
261         case MAXIM_DEVICE_TYPE_MAX14577:
262         default:
263                 if (uamp < MAX14577_CHARGER_EOC_CURRENT_LIMIT_MIN)
264                         return -EINVAL; /* Requested current is too low */
265 
266                 uamp = min(uamp, MAX14577_CHARGER_EOC_CURRENT_LIMIT_MAX);
267                 uamp -= MAX14577_CHARGER_EOC_CURRENT_LIMIT_MIN;
268                 current_bits = uamp / MAX14577_CHARGER_EOC_CURRENT_LIMIT_STEP;
269                 break;
270         }
271 
272         reg_data = current_bits << CHGCTRL5_EOCS_SHIFT;
273 
274         return max14577_update_reg(chg->max14577->regmap,
275                         MAX14577_CHG_REG_CHG_CTRL5, CHGCTRL5_EOCS_MASK,
276                         reg_data);
277 }
278 
279 static int max14577_init_fast_charge(struct max14577_charger *chg,
280                 unsigned int uamp)
281 {
282         u8 reg_data;
283         int ret;
284         const struct maxim_charger_current *limits =
285                 &maxim_charger_currents[chg->max14577->dev_type];
286 
287         ret = maxim_charger_calc_reg_current(limits, uamp, uamp, &reg_data);
288         if (ret) {
289                 dev_err(chg->dev, "Wrong value for fast charge: %u\n", uamp);
290                 return ret;
291         }
292 
293         return max14577_update_reg(chg->max14577->regmap,
294                         MAX14577_CHG_REG_CHG_CTRL4,
295                         CHGCTRL4_MBCICHWRCL_MASK | CHGCTRL4_MBCICHWRCH_MASK,
296                         reg_data);
297 }
298 
299 /*
300  * Sets charger registers to proper and safe default values.
301  * Some of these values are equal to defaults in MAX14577E
302  * data sheet but there are minor differences.
303  */
304 static int max14577_charger_reg_init(struct max14577_charger *chg)
305 {
306         struct regmap *rmap = chg->max14577->regmap;
307         u8 reg_data;
308         int ret;
309 
310         /*
311          * Charger-Type Manual Detection, default off (set CHGTYPMAN to 0)
312          * Charger-Detection Enable, default on (set CHGDETEN to 1)
313          * Combined mask of CHGDETEN and CHGTYPMAN will zero the CHGTYPMAN bit
314          */
315         reg_data = 0x1 << CDETCTRL1_CHGDETEN_SHIFT;
316         max14577_update_reg(rmap, MAX14577_REG_CDETCTRL1,
317                         CDETCTRL1_CHGDETEN_MASK | CDETCTRL1_CHGTYPMAN_MASK,
318                         reg_data);
319 
320         /*
321          * Wall-Adapter Rapid Charge, default on
322          * Battery-Charger, default on
323          */
324         reg_data = 0x1 << CHGCTRL2_VCHGR_RC_SHIFT;
325         reg_data |= 0x1 << CHGCTRL2_MBCHOSTEN_SHIFT;
326         max14577_write_reg(rmap, MAX14577_REG_CHGCTRL2, reg_data);
327 
328         /* Auto Charging Stop, default off */
329         reg_data = 0x0 << CHGCTRL6_AUTOSTOP_SHIFT;
330         max14577_write_reg(rmap, MAX14577_REG_CHGCTRL6, reg_data);
331 
332         ret = max14577_init_constant_voltage(chg, chg->pdata->constant_uvolt);
333         if (ret)
334                 return ret;
335 
336         ret = max14577_init_eoc(chg, chg->pdata->eoc_uamp);
337         if (ret)
338                 return ret;
339 
340         ret = max14577_init_fast_charge(chg, chg->pdata->fast_charge_uamp);
341         if (ret)
342                 return ret;
343 
344         ret = max14577_set_fast_charge_timer(chg,
345                         MAXIM_CHARGER_FAST_CHARGE_TIMER_DEFAULT);
346         if (ret)
347                 return ret;
348 
349         /* Initialize Overvoltage-Protection Threshold */
350         switch (chg->pdata->ovp_uvolt) {
351         case 7500000:
352                 reg_data = 0x0;
353                 break;
354         case 6000000:
355         case 6500000:
356         case 7000000:
357                 reg_data = 0x1 + (chg->pdata->ovp_uvolt - 6000000) / 500000;
358                 break;
359         default:
360                 dev_err(chg->dev, "Wrong value for OVP: %u\n",
361                                 chg->pdata->ovp_uvolt);
362                 return -EINVAL;
363         }
364         reg_data <<= CHGCTRL7_OTPCGHCVS_SHIFT;
365         max14577_write_reg(rmap, MAX14577_REG_CHGCTRL7, reg_data);
366 
367         return 0;
368 }
369 
370 /* Support property from charger */
371 static enum power_supply_property max14577_charger_props[] = {
372         POWER_SUPPLY_PROP_STATUS,
373         POWER_SUPPLY_PROP_CHARGE_TYPE,
374         POWER_SUPPLY_PROP_HEALTH,
375         POWER_SUPPLY_PROP_PRESENT,
376         POWER_SUPPLY_PROP_ONLINE,
377         POWER_SUPPLY_PROP_MODEL_NAME,
378         POWER_SUPPLY_PROP_MANUFACTURER,
379 };
380 
381 static const char * const model_names[] = {
382         [MAXIM_DEVICE_TYPE_UNKNOWN]     = "MAX14577-like",
383         [MAXIM_DEVICE_TYPE_MAX14577]    = "MAX14577",
384         [MAXIM_DEVICE_TYPE_MAX77836]    = "MAX77836",
385 };
386 static const char *manufacturer = "Maxim Integrated";
387 
388 static int max14577_charger_get_property(struct power_supply *psy,
389                             enum power_supply_property psp,
390                             union power_supply_propval *val)
391 {
392         struct max14577_charger *chg = container_of(psy,
393                                                   struct max14577_charger,
394                                                   charger);
395         int ret = 0;
396 
397         switch (psp) {
398         case POWER_SUPPLY_PROP_STATUS:
399                 val->intval = max14577_get_charger_state(chg);
400                 break;
401         case POWER_SUPPLY_PROP_CHARGE_TYPE:
402                 val->intval = max14577_get_charge_type(chg);
403                 break;
404         case POWER_SUPPLY_PROP_HEALTH:
405                 val->intval = max14577_get_battery_health(chg);
406                 break;
407         case POWER_SUPPLY_PROP_PRESENT:
408                 val->intval = max14577_get_present(chg);
409                 break;
410         case POWER_SUPPLY_PROP_ONLINE:
411                 val->intval = max14577_get_online(chg);
412                 break;
413         case POWER_SUPPLY_PROP_MODEL_NAME:
414                 BUILD_BUG_ON(ARRAY_SIZE(model_names) != MAXIM_DEVICE_TYPE_NUM);
415                 val->strval = model_names[chg->max14577->dev_type];
416                 break;
417         case POWER_SUPPLY_PROP_MANUFACTURER:
418                 val->strval = manufacturer;
419                 break;
420         default:
421                 return -EINVAL;
422         }
423 
424         return ret;
425 }
426 
427 #ifdef CONFIG_OF
428 static struct max14577_charger_platform_data *max14577_charger_dt_init(
429                 struct platform_device *pdev)
430 {
431         struct max14577_charger_platform_data *pdata;
432         struct device_node *np = pdev->dev.of_node;
433         int ret;
434 
435         if (!np) {
436                 dev_err(&pdev->dev, "No charger OF node\n");
437                 return ERR_PTR(-EINVAL);
438         }
439 
440         pdata = devm_kzalloc(&pdev->dev, sizeof(*pdata), GFP_KERNEL);
441         if (!pdata)
442                 return ERR_PTR(-ENOMEM);
443 
444         ret = of_property_read_u32(np, "maxim,constant-uvolt",
445                         &pdata->constant_uvolt);
446         if (ret) {
447                 dev_err(&pdev->dev, "Cannot parse maxim,constant-uvolt field from DT\n");
448                 return ERR_PTR(ret);
449         }
450 
451         ret = of_property_read_u32(np, "maxim,fast-charge-uamp",
452                         &pdata->fast_charge_uamp);
453         if (ret) {
454                 dev_err(&pdev->dev, "Cannot parse maxim,fast-charge-uamp field from DT\n");
455                 return ERR_PTR(ret);
456         }
457 
458         ret = of_property_read_u32(np, "maxim,eoc-uamp", &pdata->eoc_uamp);
459         if (ret) {
460                 dev_err(&pdev->dev, "Cannot parse maxim,eoc-uamp field from DT\n");
461                 return ERR_PTR(ret);
462         }
463 
464         ret = of_property_read_u32(np, "maxim,ovp-uvolt", &pdata->ovp_uvolt);
465         if (ret) {
466                 dev_err(&pdev->dev, "Cannot parse maxim,ovp-uvolt field from DT\n");
467                 return ERR_PTR(ret);
468         }
469 
470         return pdata;
471 }
472 #else /* CONFIG_OF */
473 static struct max14577_charger_platform_data *max14577_charger_dt_init(
474                 struct platform_device *pdev)
475 {
476         return NULL;
477 }
478 #endif /* CONFIG_OF */
479 
480 static ssize_t show_fast_charge_timer(struct device *dev,
481                 struct device_attribute *attr, char *buf)
482 {
483         struct max14577_charger *chg = dev_get_drvdata(dev);
484         u8 reg_data;
485         int ret;
486         unsigned int val;
487 
488         ret = max14577_read_reg(chg->max14577->regmap, MAX14577_REG_CHGCTRL1,
489                         &reg_data);
490         if (ret)
491                 return ret;
492 
493         reg_data &= CHGCTRL1_TCHW_MASK;
494         reg_data >>= CHGCTRL1_TCHW_SHIFT;
495         switch (reg_data) {
496         case 0x2 ... 0x4:
497                 val = reg_data + 3;
498                 break;
499         case 0x7:
500                 val = 0;
501                 break;
502         default:
503                 val = 5;
504                 break;
505         }
506 
507         return scnprintf(buf, PAGE_SIZE, "%u\n", val);
508 }
509 
510 static ssize_t store_fast_charge_timer(struct device *dev,
511                 struct device_attribute *attr, const char *buf, size_t count)
512 {
513         struct max14577_charger *chg = dev_get_drvdata(dev);
514         unsigned long val;
515         int ret;
516 
517         ret = kstrtoul(buf, 10, &val);
518         if (ret)
519                 return ret;
520 
521         ret = max14577_set_fast_charge_timer(chg, val);
522         if (ret)
523                 return ret;
524 
525         return count;
526 }
527 
528 static DEVICE_ATTR(fast_charge_timer, S_IRUGO | S_IWUSR,
529                 show_fast_charge_timer, store_fast_charge_timer);
530 
531 static int max14577_charger_probe(struct platform_device *pdev)
532 {
533         struct max14577_charger *chg;
534         struct max14577 *max14577 = dev_get_drvdata(pdev->dev.parent);
535         int ret;
536 
537         chg = devm_kzalloc(&pdev->dev, sizeof(*chg), GFP_KERNEL);
538         if (!chg)
539                 return -ENOMEM;
540 
541         platform_set_drvdata(pdev, chg);
542         chg->dev = &pdev->dev;
543         chg->max14577 = max14577;
544 
545         chg->pdata = max14577_charger_dt_init(pdev);
546         if (IS_ERR_OR_NULL(chg->pdata))
547                 return PTR_ERR(chg->pdata);
548 
549         ret = max14577_charger_reg_init(chg);
550         if (ret)
551                 return ret;
552 
553         chg->charger.name = "max14577-charger",
554         chg->charger.type = POWER_SUPPLY_TYPE_BATTERY,
555         chg->charger.properties = max14577_charger_props,
556         chg->charger.num_properties = ARRAY_SIZE(max14577_charger_props),
557         chg->charger.get_property = max14577_charger_get_property,
558 
559         ret = device_create_file(&pdev->dev, &dev_attr_fast_charge_timer);
560         if (ret) {
561                 dev_err(&pdev->dev, "failed: create sysfs entry\n");
562                 return ret;
563         }
564 
565         ret = power_supply_register(&pdev->dev, &chg->charger);
566         if (ret) {
567                 dev_err(&pdev->dev, "failed: power supply register\n");
568                 goto err;
569         }
570 
571         /* Check for valid values for charger */
572         BUILD_BUG_ON(MAX14577_CHARGER_EOC_CURRENT_LIMIT_MIN +
573                         MAX14577_CHARGER_EOC_CURRENT_LIMIT_STEP * 0xf !=
574                         MAX14577_CHARGER_EOC_CURRENT_LIMIT_MAX);
575         return 0;
576 
577 err:
578         device_remove_file(&pdev->dev, &dev_attr_fast_charge_timer);
579 
580         return ret;
581 }
582 
583 static int max14577_charger_remove(struct platform_device *pdev)
584 {
585         struct max14577_charger *chg = platform_get_drvdata(pdev);
586 
587         device_remove_file(&pdev->dev, &dev_attr_fast_charge_timer);
588         power_supply_unregister(&chg->charger);
589 
590         return 0;
591 }
592 
593 static const struct platform_device_id max14577_charger_id[] = {
594         { "max14577-charger", MAXIM_DEVICE_TYPE_MAX14577, },
595         { "max77836-charger", MAXIM_DEVICE_TYPE_MAX77836, },
596         { }
597 };
598 MODULE_DEVICE_TABLE(platform, max14577_charger_id);
599 
600 static struct platform_driver max14577_charger_driver = {
601         .driver = {
602                 .owner  = THIS_MODULE,
603                 .name   = "max14577-charger",
604         },
605         .probe          = max14577_charger_probe,
606         .remove         = max14577_charger_remove,
607         .id_table       = max14577_charger_id,
608 };
609 module_platform_driver(max14577_charger_driver);
610 
611 MODULE_AUTHOR("Krzysztof Kozlowski <k.kozlowski@samsung.com>");
612 MODULE_DESCRIPTION("Maxim 14577/77836 charger driver");
613 MODULE_LICENSE("GPL");
614 

This page was automatically generated by LXR 0.3.1 (source).  •  Linux is a registered trademark of Linus Torvalds  •  Contact us