Version:  2.0.40 2.2.26 2.4.37 3.8 3.9 3.10 3.11 3.12 3.13 3.14 3.15 3.16 3.17 3.18 3.19 4.0 4.1 4.2 4.3 4.4 4.5

Linux/drivers/regulator/act8865-regulator.c

  1 /*
  2  * act8865-regulator.c - Voltage regulation for active-semi ACT88xx PMUs
  3  *
  4  * http://www.active-semi.com/products/power-management-units/act88xx/
  5  *
  6  * Copyright (C) 2013 Atmel Corporation
  7  *
  8  * This program is free software; you can redistribute it and/or modify
  9  * it under the terms of the GNU General Public License as published by
 10  * the Free Software Foundation; either version 2 of the License, or
 11  * (at your option) any later version.
 12  *
 13  * This program is distributed in the hope that it will be useful,
 14  * but WITHOUT ANY WARRANTY; without even the implied warranty of
 15  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 16  * GNU General Public License for more details.
 17  */
 18 
 19 #include <linux/module.h>
 20 #include <linux/init.h>
 21 #include <linux/i2c.h>
 22 #include <linux/err.h>
 23 #include <linux/platform_device.h>
 24 #include <linux/regulator/driver.h>
 25 #include <linux/regulator/act8865.h>
 26 #include <linux/of.h>
 27 #include <linux/of_device.h>
 28 #include <linux/regulator/of_regulator.h>
 29 #include <linux/regmap.h>
 30 
 31 /*
 32  * ACT8600 Global Register Map.
 33  */
 34 #define ACT8600_SYS_MODE        0x00
 35 #define ACT8600_SYS_CTRL        0x01
 36 #define ACT8600_DCDC1_VSET      0x10
 37 #define ACT8600_DCDC1_CTRL      0x12
 38 #define ACT8600_DCDC2_VSET      0x20
 39 #define ACT8600_DCDC2_CTRL      0x22
 40 #define ACT8600_DCDC3_VSET      0x30
 41 #define ACT8600_DCDC3_CTRL      0x32
 42 #define ACT8600_SUDCDC4_VSET    0x40
 43 #define ACT8600_SUDCDC4_CTRL    0x41
 44 #define ACT8600_LDO5_VSET       0x50
 45 #define ACT8600_LDO5_CTRL       0x51
 46 #define ACT8600_LDO6_VSET       0x60
 47 #define ACT8600_LDO6_CTRL       0x61
 48 #define ACT8600_LDO7_VSET       0x70
 49 #define ACT8600_LDO7_CTRL       0x71
 50 #define ACT8600_LDO8_VSET       0x80
 51 #define ACT8600_LDO8_CTRL       0x81
 52 #define ACT8600_LDO910_CTRL     0x91
 53 #define ACT8600_APCH0           0xA1
 54 #define ACT8600_APCH1           0xA8
 55 #define ACT8600_APCH2           0xA9
 56 #define ACT8600_APCH_STAT       0xAA
 57 #define ACT8600_OTG0            0xB0
 58 #define ACT8600_OTG1            0xB2
 59 
 60 /*
 61  * ACT8846 Global Register Map.
 62  */
 63 #define ACT8846_SYS0            0x00
 64 #define ACT8846_SYS1            0x01
 65 #define ACT8846_REG1_VSET       0x10
 66 #define ACT8846_REG1_CTRL       0x12
 67 #define ACT8846_REG2_VSET0      0x20
 68 #define ACT8846_REG2_VSET1      0x21
 69 #define ACT8846_REG2_CTRL       0x22
 70 #define ACT8846_REG3_VSET0      0x30
 71 #define ACT8846_REG3_VSET1      0x31
 72 #define ACT8846_REG3_CTRL       0x32
 73 #define ACT8846_REG4_VSET0      0x40
 74 #define ACT8846_REG4_VSET1      0x41
 75 #define ACT8846_REG4_CTRL       0x42
 76 #define ACT8846_REG5_VSET       0x50
 77 #define ACT8846_REG5_CTRL       0x51
 78 #define ACT8846_REG6_VSET       0x58
 79 #define ACT8846_REG6_CTRL       0x59
 80 #define ACT8846_REG7_VSET       0x60
 81 #define ACT8846_REG7_CTRL       0x61
 82 #define ACT8846_REG8_VSET       0x68
 83 #define ACT8846_REG8_CTRL       0x69
 84 #define ACT8846_REG9_VSET       0x70
 85 #define ACT8846_REG9_CTRL       0x71
 86 #define ACT8846_REG10_VSET      0x80
 87 #define ACT8846_REG10_CTRL      0x81
 88 #define ACT8846_REG11_VSET      0x90
 89 #define ACT8846_REG11_CTRL      0x91
 90 #define ACT8846_REG12_VSET      0xa0
 91 #define ACT8846_REG12_CTRL      0xa1
 92 #define ACT8846_REG13_CTRL      0xb1
 93 #define ACT8846_GLB_OFF_CTRL    0xc3
 94 #define ACT8846_OFF_SYSMASK     0x18
 95 
 96 /*
 97  * ACT8865 Global Register Map.
 98  */
 99 #define ACT8865_SYS_MODE        0x00
100 #define ACT8865_SYS_CTRL        0x01
101 #define ACT8865_DCDC1_VSET1     0x20
102 #define ACT8865_DCDC1_VSET2     0x21
103 #define ACT8865_DCDC1_CTRL      0x22
104 #define ACT8865_DCDC2_VSET1     0x30
105 #define ACT8865_DCDC2_VSET2     0x31
106 #define ACT8865_DCDC2_CTRL      0x32
107 #define ACT8865_DCDC3_VSET1     0x40
108 #define ACT8865_DCDC3_VSET2     0x41
109 #define ACT8865_DCDC3_CTRL      0x42
110 #define ACT8865_LDO1_VSET       0x50
111 #define ACT8865_LDO1_CTRL       0x51
112 #define ACT8865_LDO2_VSET       0x54
113 #define ACT8865_LDO2_CTRL       0x55
114 #define ACT8865_LDO3_VSET       0x60
115 #define ACT8865_LDO3_CTRL       0x61
116 #define ACT8865_LDO4_VSET       0x64
117 #define ACT8865_LDO4_CTRL       0x65
118 #define ACT8865_MSTROFF         0x20
119 
120 /*
121  * Field Definitions.
122  */
123 #define ACT8865_ENA             0x80    /* ON - [7] */
124 #define ACT8865_VSEL_MASK       0x3F    /* VSET - [5:0] */
125 
126 
127 #define ACT8600_LDO10_ENA               0x40    /* ON - [6] */
128 #define ACT8600_SUDCDC_VSEL_MASK        0xFF    /* SUDCDC VSET - [7:0] */
129 
130 /*
131  * ACT8865 voltage number
132  */
133 #define ACT8865_VOLTAGE_NUM     64
134 #define ACT8600_SUDCDC_VOLTAGE_NUM      255
135 
136 struct act8865 {
137         struct regmap *regmap;
138         int off_reg;
139         int off_mask;
140 };
141 
142 static const struct regmap_config act8865_regmap_config = {
143         .reg_bits = 8,
144         .val_bits = 8,
145 };
146 
147 static const struct regulator_linear_range act8865_voltage_ranges[] = {
148         REGULATOR_LINEAR_RANGE(600000, 0, 23, 25000),
149         REGULATOR_LINEAR_RANGE(1200000, 24, 47, 50000),
150         REGULATOR_LINEAR_RANGE(2400000, 48, 63, 100000),
151 };
152 
153 static const struct regulator_linear_range act8600_sudcdc_voltage_ranges[] = {
154         REGULATOR_LINEAR_RANGE(3000000, 0, 63, 0),
155         REGULATOR_LINEAR_RANGE(3000000, 64, 159, 100000),
156         REGULATOR_LINEAR_RANGE(12600000, 160, 191, 200000),
157         REGULATOR_LINEAR_RANGE(19000000, 191, 255, 400000),
158 };
159 
160 static struct regulator_ops act8865_ops = {
161         .list_voltage           = regulator_list_voltage_linear_range,
162         .map_voltage            = regulator_map_voltage_linear_range,
163         .get_voltage_sel        = regulator_get_voltage_sel_regmap,
164         .set_voltage_sel        = regulator_set_voltage_sel_regmap,
165         .enable                 = regulator_enable_regmap,
166         .disable                = regulator_disable_regmap,
167         .is_enabled             = regulator_is_enabled_regmap,
168 };
169 
170 static struct regulator_ops act8865_ldo_ops = {
171         .enable                 = regulator_enable_regmap,
172         .disable                = regulator_disable_regmap,
173         .is_enabled             = regulator_is_enabled_regmap,
174 };
175 
176 #define ACT88xx_REG(_name, _family, _id, _vsel_reg, _supply)            \
177         [_family##_ID_##_id] = {                                        \
178                 .name                   = _name,                        \
179                 .supply_name            = _supply,                      \
180                 .id                     = _family##_ID_##_id,           \
181                 .type                   = REGULATOR_VOLTAGE,            \
182                 .ops                    = &act8865_ops,                 \
183                 .n_voltages             = ACT8865_VOLTAGE_NUM,          \
184                 .linear_ranges          = act8865_voltage_ranges,       \
185                 .n_linear_ranges        = ARRAY_SIZE(act8865_voltage_ranges), \
186                 .vsel_reg               = _family##_##_id##_##_vsel_reg, \
187                 .vsel_mask              = ACT8865_VSEL_MASK,            \
188                 .enable_reg             = _family##_##_id##_CTRL,       \
189                 .enable_mask            = ACT8865_ENA,                  \
190                 .owner                  = THIS_MODULE,                  \
191         }
192 
193 static const struct regulator_desc act8600_regulators[] = {
194         ACT88xx_REG("DCDC1", ACT8600, DCDC1, VSET, "vp1"),
195         ACT88xx_REG("DCDC2", ACT8600, DCDC2, VSET, "vp2"),
196         ACT88xx_REG("DCDC3", ACT8600, DCDC3, VSET, "vp3"),
197         {
198                 .name = "SUDCDC_REG4",
199                 .id = ACT8600_ID_SUDCDC4,
200                 .ops = &act8865_ops,
201                 .type = REGULATOR_VOLTAGE,
202                 .n_voltages = ACT8600_SUDCDC_VOLTAGE_NUM,
203                 .linear_ranges = act8600_sudcdc_voltage_ranges,
204                 .n_linear_ranges = ARRAY_SIZE(act8600_sudcdc_voltage_ranges),
205                 .vsel_reg = ACT8600_SUDCDC4_VSET,
206                 .vsel_mask = ACT8600_SUDCDC_VSEL_MASK,
207                 .enable_reg = ACT8600_SUDCDC4_CTRL,
208                 .enable_mask = ACT8865_ENA,
209                 .owner = THIS_MODULE,
210         },
211         ACT88xx_REG("LDO5", ACT8600, LDO5, VSET, "inl"),
212         ACT88xx_REG("LDO6", ACT8600, LDO6, VSET, "inl"),
213         ACT88xx_REG("LDO7", ACT8600, LDO7, VSET, "inl"),
214         ACT88xx_REG("LDO8", ACT8600, LDO8, VSET, "inl"),
215         {
216                 .name = "LDO_REG9",
217                 .id = ACT8600_ID_LDO9,
218                 .ops = &act8865_ldo_ops,
219                 .type = REGULATOR_VOLTAGE,
220                 .n_voltages = 1,
221                 .fixed_uV = 1800000,
222                 .enable_reg = ACT8600_LDO910_CTRL,
223                 .enable_mask = ACT8865_ENA,
224                 .owner = THIS_MODULE,
225         },
226         {
227                 .name = "LDO_REG10",
228                 .id = ACT8600_ID_LDO10,
229                 .ops = &act8865_ldo_ops,
230                 .type = REGULATOR_VOLTAGE,
231                 .n_voltages = 1,
232                 .fixed_uV = 1200000,
233                 .enable_reg = ACT8600_LDO910_CTRL,
234                 .enable_mask = ACT8600_LDO10_ENA,
235                 .owner = THIS_MODULE,
236         },
237 };
238 
239 static const struct regulator_desc act8846_regulators[] = {
240         ACT88xx_REG("REG1", ACT8846, REG1, VSET, "vp1"),
241         ACT88xx_REG("REG2", ACT8846, REG2, VSET0, "vp2"),
242         ACT88xx_REG("REG3", ACT8846, REG3, VSET0, "vp3"),
243         ACT88xx_REG("REG4", ACT8846, REG4, VSET0, "vp4"),
244         ACT88xx_REG("REG5", ACT8846, REG5, VSET, "inl1"),
245         ACT88xx_REG("REG6", ACT8846, REG6, VSET, "inl1"),
246         ACT88xx_REG("REG7", ACT8846, REG7, VSET, "inl1"),
247         ACT88xx_REG("REG8", ACT8846, REG8, VSET, "inl2"),
248         ACT88xx_REG("REG9", ACT8846, REG9, VSET, "inl2"),
249         ACT88xx_REG("REG10", ACT8846, REG10, VSET, "inl3"),
250         ACT88xx_REG("REG11", ACT8846, REG11, VSET, "inl3"),
251         ACT88xx_REG("REG12", ACT8846, REG12, VSET, "inl3"),
252 };
253 
254 static const struct regulator_desc act8865_regulators[] = {
255         ACT88xx_REG("DCDC_REG1", ACT8865, DCDC1, VSET1, "vp1"),
256         ACT88xx_REG("DCDC_REG2", ACT8865, DCDC2, VSET1, "vp2"),
257         ACT88xx_REG("DCDC_REG3", ACT8865, DCDC3, VSET1, "vp3"),
258         ACT88xx_REG("LDO_REG1", ACT8865, LDO1, VSET, "inl45"),
259         ACT88xx_REG("LDO_REG2", ACT8865, LDO2, VSET, "inl45"),
260         ACT88xx_REG("LDO_REG3", ACT8865, LDO3, VSET, "inl67"),
261         ACT88xx_REG("LDO_REG4", ACT8865, LDO4, VSET, "inl67"),
262 };
263 
264 static const struct regulator_desc act8865_alt_regulators[] = {
265         ACT88xx_REG("DCDC_REG1", ACT8865, DCDC1, VSET2, "vp1"),
266         ACT88xx_REG("DCDC_REG2", ACT8865, DCDC2, VSET2, "vp2"),
267         ACT88xx_REG("DCDC_REG3", ACT8865, DCDC3, VSET2, "vp3"),
268         ACT88xx_REG("LDO_REG1", ACT8865, LDO1, VSET, "inl45"),
269         ACT88xx_REG("LDO_REG2", ACT8865, LDO2, VSET, "inl45"),
270         ACT88xx_REG("LDO_REG3", ACT8865, LDO3, VSET, "inl67"),
271         ACT88xx_REG("LDO_REG4", ACT8865, LDO4, VSET, "inl67"),
272 };
273 
274 #ifdef CONFIG_OF
275 static const struct of_device_id act8865_dt_ids[] = {
276         { .compatible = "active-semi,act8600", .data = (void *)ACT8600 },
277         { .compatible = "active-semi,act8846", .data = (void *)ACT8846 },
278         { .compatible = "active-semi,act8865", .data = (void *)ACT8865 },
279         { }
280 };
281 MODULE_DEVICE_TABLE(of, act8865_dt_ids);
282 
283 static struct of_regulator_match act8846_matches[] = {
284         [ACT8846_ID_REG1]       = { .name = "REG1" },
285         [ACT8846_ID_REG2]       = { .name = "REG2" },
286         [ACT8846_ID_REG3]       = { .name = "REG3" },
287         [ACT8846_ID_REG4]       = { .name = "REG4" },
288         [ACT8846_ID_REG5]       = { .name = "REG5" },
289         [ACT8846_ID_REG6]       = { .name = "REG6" },
290         [ACT8846_ID_REG7]       = { .name = "REG7" },
291         [ACT8846_ID_REG8]       = { .name = "REG8" },
292         [ACT8846_ID_REG9]       = { .name = "REG9" },
293         [ACT8846_ID_REG10]      = { .name = "REG10" },
294         [ACT8846_ID_REG11]      = { .name = "REG11" },
295         [ACT8846_ID_REG12]      = { .name = "REG12" },
296 };
297 
298 static struct of_regulator_match act8865_matches[] = {
299         [ACT8865_ID_DCDC1]      = { .name = "DCDC_REG1"},
300         [ACT8865_ID_DCDC2]      = { .name = "DCDC_REG2"},
301         [ACT8865_ID_DCDC3]      = { .name = "DCDC_REG3"},
302         [ACT8865_ID_LDO1]       = { .name = "LDO_REG1"},
303         [ACT8865_ID_LDO2]       = { .name = "LDO_REG2"},
304         [ACT8865_ID_LDO3]       = { .name = "LDO_REG3"},
305         [ACT8865_ID_LDO4]       = { .name = "LDO_REG4"},
306 };
307 
308 static struct of_regulator_match act8600_matches[] = {
309         [ACT8600_ID_DCDC1]      = { .name = "DCDC_REG1"},
310         [ACT8600_ID_DCDC2]      = { .name = "DCDC_REG2"},
311         [ACT8600_ID_DCDC3]      = { .name = "DCDC_REG3"},
312         [ACT8600_ID_SUDCDC4]    = { .name = "SUDCDC_REG4"},
313         [ACT8600_ID_LDO5]       = { .name = "LDO_REG5"},
314         [ACT8600_ID_LDO6]       = { .name = "LDO_REG6"},
315         [ACT8600_ID_LDO7]       = { .name = "LDO_REG7"},
316         [ACT8600_ID_LDO8]       = { .name = "LDO_REG8"},
317         [ACT8600_ID_LDO9]       = { .name = "LDO_REG9"},
318         [ACT8600_ID_LDO10]      = { .name = "LDO_REG10"},
319 };
320 
321 static int act8865_pdata_from_dt(struct device *dev,
322                                  struct device_node **of_node,
323                                  struct act8865_platform_data *pdata,
324                                  unsigned long type)
325 {
326         int matched, i, num_matches;
327         struct device_node *np;
328         struct act8865_regulator_data *regulator;
329         struct of_regulator_match *matches;
330 
331         np = of_get_child_by_name(dev->of_node, "regulators");
332         if (!np) {
333                 dev_err(dev, "missing 'regulators' subnode in DT\n");
334                 return -EINVAL;
335         }
336 
337         switch (type) {
338         case ACT8600:
339                 matches = act8600_matches;
340                 num_matches = ARRAY_SIZE(act8600_matches);
341                 break;
342         case ACT8846:
343                 matches = act8846_matches;
344                 num_matches = ARRAY_SIZE(act8846_matches);
345                 break;
346         case ACT8865:
347                 matches = act8865_matches;
348                 num_matches = ARRAY_SIZE(act8865_matches);
349                 break;
350         default:
351                 dev_err(dev, "invalid device id %lu\n", type);
352                 return -EINVAL;
353         }
354 
355         matched = of_regulator_match(dev, np, matches, num_matches);
356         of_node_put(np);
357         if (matched <= 0)
358                 return matched;
359 
360         pdata->regulators = devm_kzalloc(dev,
361                                          sizeof(struct act8865_regulator_data) *
362                                          num_matches, GFP_KERNEL);
363         if (!pdata->regulators)
364                 return -ENOMEM;
365 
366         pdata->num_regulators = num_matches;
367         regulator = pdata->regulators;
368 
369         for (i = 0; i < num_matches; i++) {
370                 regulator->id = i;
371                 regulator->name = matches[i].name;
372                 regulator->platform_data = matches[i].init_data;
373                 of_node[i] = matches[i].of_node;
374                 regulator++;
375         }
376 
377         return 0;
378 }
379 #else
380 static inline int act8865_pdata_from_dt(struct device *dev,
381                                         struct device_node **of_node,
382                                         struct act8865_platform_data *pdata,
383                                         unsigned long type)
384 {
385         return 0;
386 }
387 #endif
388 
389 static struct regulator_init_data
390 *act8865_get_init_data(int id, struct act8865_platform_data *pdata)
391 {
392         int i;
393 
394         if (!pdata)
395                 return NULL;
396 
397         for (i = 0; i < pdata->num_regulators; i++) {
398                 if (pdata->regulators[i].id == id)
399                         return pdata->regulators[i].platform_data;
400         }
401 
402         return NULL;
403 }
404 
405 static struct i2c_client *act8865_i2c_client;
406 static void act8865_power_off(void)
407 {
408         struct act8865 *act8865;
409 
410         act8865 = i2c_get_clientdata(act8865_i2c_client);
411         regmap_write(act8865->regmap, act8865->off_reg, act8865->off_mask);
412         while (1);
413 }
414 
415 static int act8865_pmic_probe(struct i2c_client *client,
416                               const struct i2c_device_id *i2c_id)
417 {
418         static const struct regulator_desc *regulators;
419         struct act8865_platform_data pdata_of, *pdata;
420         struct device *dev = &client->dev;
421         struct device_node **of_node;
422         int i, ret, num_regulators;
423         struct act8865 *act8865;
424         unsigned long type;
425         int off_reg, off_mask;
426         int voltage_select = 0;
427 
428         pdata = dev_get_platdata(dev);
429 
430         if (dev->of_node && !pdata) {
431                 const struct of_device_id *id;
432 
433                 id = of_match_device(of_match_ptr(act8865_dt_ids), dev);
434                 if (!id)
435                         return -ENODEV;
436 
437                 type = (unsigned long) id->data;
438 
439                 voltage_select = !!of_get_property(dev->of_node,
440                                                    "active-semi,vsel-high",
441                                                    NULL);
442         } else {
443                 type = i2c_id->driver_data;
444         }
445 
446         switch (type) {
447         case ACT8600:
448                 regulators = act8600_regulators;
449                 num_regulators = ARRAY_SIZE(act8600_regulators);
450                 off_reg = -1;
451                 off_mask = -1;
452                 break;
453         case ACT8846:
454                 regulators = act8846_regulators;
455                 num_regulators = ARRAY_SIZE(act8846_regulators);
456                 off_reg = ACT8846_GLB_OFF_CTRL;
457                 off_mask = ACT8846_OFF_SYSMASK;
458                 break;
459         case ACT8865:
460                 if (voltage_select) {
461                         regulators = act8865_alt_regulators;
462                         num_regulators = ARRAY_SIZE(act8865_alt_regulators);
463                 } else {
464                         regulators = act8865_regulators;
465                         num_regulators = ARRAY_SIZE(act8865_regulators);
466                 }
467                 off_reg = ACT8865_SYS_CTRL;
468                 off_mask = ACT8865_MSTROFF;
469                 break;
470         default:
471                 dev_err(dev, "invalid device id %lu\n", type);
472                 return -EINVAL;
473         }
474 
475         of_node = devm_kzalloc(dev, sizeof(struct device_node *) *
476                                num_regulators, GFP_KERNEL);
477         if (!of_node)
478                 return -ENOMEM;
479 
480         if (dev->of_node && !pdata) {
481                 ret = act8865_pdata_from_dt(dev, of_node, &pdata_of, type);
482                 if (ret < 0)
483                         return ret;
484 
485                 pdata = &pdata_of;
486         }
487 
488         if (pdata->num_regulators > num_regulators) {
489                 dev_err(dev, "too many regulators: %d\n",
490                         pdata->num_regulators);
491                 return -EINVAL;
492         }
493 
494         act8865 = devm_kzalloc(dev, sizeof(struct act8865), GFP_KERNEL);
495         if (!act8865)
496                 return -ENOMEM;
497 
498         act8865->regmap = devm_regmap_init_i2c(client, &act8865_regmap_config);
499         if (IS_ERR(act8865->regmap)) {
500                 ret = PTR_ERR(act8865->regmap);
501                 dev_err(&client->dev, "Failed to allocate register map: %d\n",
502                         ret);
503                 return ret;
504         }
505 
506         if (of_device_is_system_power_controller(dev->of_node)) {
507                 if (!pm_power_off && (off_reg > 0)) {
508                         act8865_i2c_client = client;
509                         act8865->off_reg = off_reg;
510                         act8865->off_mask = off_mask;
511                         pm_power_off = act8865_power_off;
512                 } else {
513                         dev_err(dev, "Failed to set poweroff capability, already defined\n");
514                 }
515         }
516 
517         /* Finally register devices */
518         for (i = 0; i < num_regulators; i++) {
519                 const struct regulator_desc *desc = &regulators[i];
520                 struct regulator_config config = { };
521                 struct regulator_dev *rdev;
522 
523                 config.dev = dev;
524                 config.init_data = act8865_get_init_data(desc->id, pdata);
525                 config.of_node = of_node[i];
526                 config.driver_data = act8865;
527                 config.regmap = act8865->regmap;
528 
529                 rdev = devm_regulator_register(&client->dev, desc, &config);
530                 if (IS_ERR(rdev)) {
531                         dev_err(dev, "failed to register %s\n", desc->name);
532                         return PTR_ERR(rdev);
533                 }
534         }
535 
536         i2c_set_clientdata(client, act8865);
537         devm_kfree(dev, of_node);
538 
539         return 0;
540 }
541 
542 static const struct i2c_device_id act8865_ids[] = {
543         { .name = "act8600", .driver_data = ACT8600 },
544         { .name = "act8846", .driver_data = ACT8846 },
545         { .name = "act8865", .driver_data = ACT8865 },
546         { },
547 };
548 MODULE_DEVICE_TABLE(i2c, act8865_ids);
549 
550 static struct i2c_driver act8865_pmic_driver = {
551         .driver = {
552                 .name   = "act8865",
553         },
554         .probe          = act8865_pmic_probe,
555         .id_table       = act8865_ids,
556 };
557 
558 module_i2c_driver(act8865_pmic_driver);
559 
560 MODULE_DESCRIPTION("active-semi act88xx voltage regulator driver");
561 MODULE_AUTHOR("Wenyou Yang <wenyou.yang@atmel.com>");
562 MODULE_LICENSE("GPL v2");
563 

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