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Commit | Line | Data |
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527e7e9a MH |
1 | /* |
2 | * max8997.c - mfd core driver for the Maxim 8966 and 8997 | |
3 | * | |
4 | * Copyright (C) 2011 Samsung Electronics | |
5 | * MyungJoo Ham <myungjoo.ham@smasung.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 | * You should have received a copy of the GNU General Public License | |
18 | * along with this program; if not, write to the Free Software | |
19 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA | |
20 | * | |
21 | * This driver is based on max8998.c | |
22 | */ | |
23 | ||
77b71b37 | 24 | #include <linux/err.h> |
527e7e9a MH |
25 | #include <linux/slab.h> |
26 | #include <linux/i2c.h> | |
77b71b37 | 27 | #include <linux/of_irq.h> |
01fdaab8 | 28 | #include <linux/interrupt.h> |
527e7e9a | 29 | #include <linux/pm_runtime.h> |
4e36dd33 | 30 | #include <linux/module.h> |
527e7e9a MH |
31 | #include <linux/mutex.h> |
32 | #include <linux/mfd/core.h> | |
33 | #include <linux/mfd/max8997.h> | |
34 | #include <linux/mfd/max8997-private.h> | |
35 | ||
36 | #define I2C_ADDR_PMIC (0xCC >> 1) | |
37 | #define I2C_ADDR_MUIC (0x4A >> 1) | |
38 | #define I2C_ADDR_BATTERY (0x6C >> 1) | |
39 | #define I2C_ADDR_RTC (0x0C >> 1) | |
40 | #define I2C_ADDR_HAPTIC (0x90 >> 1) | |
41 | ||
42 | static struct mfd_cell max8997_devs[] = { | |
43 | { .name = "max8997-pmic", }, | |
44 | { .name = "max8997-rtc", }, | |
45 | { .name = "max8997-battery", }, | |
46 | { .name = "max8997-haptic", }, | |
47 | { .name = "max8997-muic", }, | |
f6dd2db9 DK |
48 | { .name = "max8997-led", .id = 1 }, |
49 | { .name = "max8997-led", .id = 2 }, | |
527e7e9a MH |
50 | }; |
51 | ||
77b71b37 TA |
52 | #ifdef CONFIG_OF |
53 | static struct of_device_id __devinitdata max8997_pmic_dt_match[] = { | |
54 | { .compatible = "maxim,max8997-pmic", .data = TYPE_MAX8997 }, | |
55 | {}, | |
56 | }; | |
57 | #endif | |
58 | ||
527e7e9a MH |
59 | int max8997_read_reg(struct i2c_client *i2c, u8 reg, u8 *dest) |
60 | { | |
61 | struct max8997_dev *max8997 = i2c_get_clientdata(i2c); | |
62 | int ret; | |
63 | ||
64 | mutex_lock(&max8997->iolock); | |
65 | ret = i2c_smbus_read_byte_data(i2c, reg); | |
66 | mutex_unlock(&max8997->iolock); | |
67 | if (ret < 0) | |
68 | return ret; | |
69 | ||
70 | ret &= 0xff; | |
71 | *dest = ret; | |
72 | return 0; | |
73 | } | |
74 | EXPORT_SYMBOL_GPL(max8997_read_reg); | |
75 | ||
76 | int max8997_bulk_read(struct i2c_client *i2c, u8 reg, int count, u8 *buf) | |
77 | { | |
78 | struct max8997_dev *max8997 = i2c_get_clientdata(i2c); | |
79 | int ret; | |
80 | ||
81 | mutex_lock(&max8997->iolock); | |
82 | ret = i2c_smbus_read_i2c_block_data(i2c, reg, count, buf); | |
83 | mutex_unlock(&max8997->iolock); | |
84 | if (ret < 0) | |
85 | return ret; | |
86 | ||
87 | return 0; | |
88 | } | |
89 | EXPORT_SYMBOL_GPL(max8997_bulk_read); | |
90 | ||
91 | int max8997_write_reg(struct i2c_client *i2c, u8 reg, u8 value) | |
92 | { | |
93 | struct max8997_dev *max8997 = i2c_get_clientdata(i2c); | |
94 | int ret; | |
95 | ||
96 | mutex_lock(&max8997->iolock); | |
97 | ret = i2c_smbus_write_byte_data(i2c, reg, value); | |
98 | mutex_unlock(&max8997->iolock); | |
99 | return ret; | |
100 | } | |
101 | EXPORT_SYMBOL_GPL(max8997_write_reg); | |
102 | ||
103 | int max8997_bulk_write(struct i2c_client *i2c, u8 reg, int count, u8 *buf) | |
104 | { | |
105 | struct max8997_dev *max8997 = i2c_get_clientdata(i2c); | |
106 | int ret; | |
107 | ||
108 | mutex_lock(&max8997->iolock); | |
109 | ret = i2c_smbus_write_i2c_block_data(i2c, reg, count, buf); | |
110 | mutex_unlock(&max8997->iolock); | |
111 | if (ret < 0) | |
112 | return ret; | |
113 | ||
114 | return 0; | |
115 | } | |
116 | EXPORT_SYMBOL_GPL(max8997_bulk_write); | |
117 | ||
118 | int max8997_update_reg(struct i2c_client *i2c, u8 reg, u8 val, u8 mask) | |
119 | { | |
120 | struct max8997_dev *max8997 = i2c_get_clientdata(i2c); | |
121 | int ret; | |
122 | ||
123 | mutex_lock(&max8997->iolock); | |
124 | ret = i2c_smbus_read_byte_data(i2c, reg); | |
125 | if (ret >= 0) { | |
126 | u8 old_val = ret & 0xff; | |
127 | u8 new_val = (val & mask) | (old_val & (~mask)); | |
128 | ret = i2c_smbus_write_byte_data(i2c, reg, new_val); | |
129 | } | |
130 | mutex_unlock(&max8997->iolock); | |
131 | return ret; | |
132 | } | |
133 | EXPORT_SYMBOL_GPL(max8997_update_reg); | |
134 | ||
77b71b37 TA |
135 | #ifdef CONFIG_OF |
136 | /* | |
137 | * Only the common platform data elements for max8997 are parsed here from the | |
138 | * device tree. Other sub-modules of max8997 such as pmic, rtc and others have | |
139 | * to parse their own platform data elements from device tree. | |
140 | * | |
141 | * The max8997 platform data structure is instantiated here and the drivers for | |
142 | * the sub-modules need not instantiate another instance while parsing their | |
143 | * platform data. | |
144 | */ | |
145 | static struct max8997_platform_data *max8997_i2c_parse_dt_pdata( | |
146 | struct device *dev) | |
147 | { | |
148 | struct max8997_platform_data *pd; | |
149 | ||
150 | pd = devm_kzalloc(dev, sizeof(*pd), GFP_KERNEL); | |
151 | if (!pd) { | |
152 | dev_err(dev, "could not allocate memory for pdata\n"); | |
153 | return ERR_PTR(-ENOMEM); | |
154 | } | |
155 | ||
156 | pd->ono = irq_of_parse_and_map(dev->of_node, 1); | |
157 | ||
158 | /* | |
159 | * ToDo: the 'wakeup' member in the platform data is more of a linux | |
160 | * specfic information. Hence, there is no binding for that yet and | |
161 | * not parsed here. | |
162 | */ | |
163 | ||
164 | return pd; | |
165 | } | |
166 | #else | |
167 | static struct max8997_platform_data *max8997_i2c_parse_dt_pdata( | |
168 | struct device *dev) | |
169 | { | |
170 | return 0; | |
171 | } | |
172 | #endif | |
173 | ||
174 | static inline int max8997_i2c_get_driver_data(struct i2c_client *i2c, | |
175 | const struct i2c_device_id *id) | |
176 | { | |
177 | #ifdef CONFIG_OF | |
178 | if (i2c->dev.of_node) { | |
179 | const struct of_device_id *match; | |
180 | match = of_match_node(max8997_pmic_dt_match, i2c->dev.of_node); | |
181 | return (int)match->data; | |
182 | } | |
183 | #endif | |
184 | return (int)id->driver_data; | |
185 | } | |
186 | ||
527e7e9a MH |
187 | static int max8997_i2c_probe(struct i2c_client *i2c, |
188 | const struct i2c_device_id *id) | |
189 | { | |
190 | struct max8997_dev *max8997; | |
191 | struct max8997_platform_data *pdata = i2c->dev.platform_data; | |
192 | int ret = 0; | |
193 | ||
194 | max8997 = kzalloc(sizeof(struct max8997_dev), GFP_KERNEL); | |
195 | if (max8997 == NULL) | |
196 | return -ENOMEM; | |
197 | ||
198 | i2c_set_clientdata(i2c, max8997); | |
199 | max8997->dev = &i2c->dev; | |
200 | max8997->i2c = i2c; | |
77b71b37 | 201 | max8997->type = max8997_i2c_get_driver_data(i2c, id); |
7eb3154e | 202 | max8997->irq = i2c->irq; |
527e7e9a | 203 | |
77b71b37 TA |
204 | if (max8997->dev->of_node) { |
205 | pdata = max8997_i2c_parse_dt_pdata(max8997->dev); | |
206 | if (IS_ERR(pdata)) { | |
207 | ret = PTR_ERR(pdata); | |
208 | goto err; | |
209 | } | |
210 | } | |
211 | ||
527e7e9a MH |
212 | if (!pdata) |
213 | goto err; | |
214 | ||
77b71b37 | 215 | max8997->pdata = pdata; |
7eb3154e | 216 | max8997->ono = pdata->ono; |
527e7e9a MH |
217 | |
218 | mutex_init(&max8997->iolock); | |
219 | ||
220 | max8997->rtc = i2c_new_dummy(i2c->adapter, I2C_ADDR_RTC); | |
221 | i2c_set_clientdata(max8997->rtc, max8997); | |
222 | max8997->haptic = i2c_new_dummy(i2c->adapter, I2C_ADDR_HAPTIC); | |
223 | i2c_set_clientdata(max8997->haptic, max8997); | |
224 | max8997->muic = i2c_new_dummy(i2c->adapter, I2C_ADDR_MUIC); | |
225 | i2c_set_clientdata(max8997->muic, max8997); | |
226 | ||
227 | pm_runtime_set_active(max8997->dev); | |
228 | ||
7eb3154e MH |
229 | max8997_irq_init(max8997); |
230 | ||
527e7e9a MH |
231 | mfd_add_devices(max8997->dev, -1, max8997_devs, |
232 | ARRAY_SIZE(max8997_devs), | |
0848c94f | 233 | NULL, 0, NULL); |
527e7e9a MH |
234 | |
235 | /* | |
236 | * TODO: enable others (flash, muic, rtc, battery, ...) and | |
237 | * check the return value | |
238 | */ | |
239 | ||
240 | if (ret < 0) | |
241 | goto err_mfd; | |
242 | ||
01fdaab8 MH |
243 | /* MAX8997 has a power button input. */ |
244 | device_init_wakeup(max8997->dev, pdata->wakeup); | |
245 | ||
527e7e9a MH |
246 | return ret; |
247 | ||
248 | err_mfd: | |
249 | mfd_remove_devices(max8997->dev); | |
250 | i2c_unregister_device(max8997->muic); | |
251 | i2c_unregister_device(max8997->haptic); | |
252 | i2c_unregister_device(max8997->rtc); | |
253 | err: | |
254 | kfree(max8997); | |
255 | return ret; | |
256 | } | |
257 | ||
258 | static int max8997_i2c_remove(struct i2c_client *i2c) | |
259 | { | |
260 | struct max8997_dev *max8997 = i2c_get_clientdata(i2c); | |
261 | ||
262 | mfd_remove_devices(max8997->dev); | |
263 | i2c_unregister_device(max8997->muic); | |
264 | i2c_unregister_device(max8997->haptic); | |
265 | i2c_unregister_device(max8997->rtc); | |
266 | kfree(max8997); | |
267 | ||
268 | return 0; | |
269 | } | |
270 | ||
271 | static const struct i2c_device_id max8997_i2c_id[] = { | |
272 | { "max8997", TYPE_MAX8997 }, | |
273 | { "max8966", TYPE_MAX8966 }, | |
274 | { } | |
275 | }; | |
276 | MODULE_DEVICE_TABLE(i2c, max8998_i2c_id); | |
277 | ||
b673e24c | 278 | static u8 max8997_dumpaddr_pmic[] = { |
527e7e9a MH |
279 | MAX8997_REG_INT1MSK, |
280 | MAX8997_REG_INT2MSK, | |
281 | MAX8997_REG_INT3MSK, | |
282 | MAX8997_REG_INT4MSK, | |
283 | MAX8997_REG_MAINCON1, | |
284 | MAX8997_REG_MAINCON2, | |
285 | MAX8997_REG_BUCKRAMP, | |
286 | MAX8997_REG_BUCK1CTRL, | |
287 | MAX8997_REG_BUCK1DVS1, | |
288 | MAX8997_REG_BUCK1DVS2, | |
289 | MAX8997_REG_BUCK1DVS3, | |
290 | MAX8997_REG_BUCK1DVS4, | |
291 | MAX8997_REG_BUCK1DVS5, | |
292 | MAX8997_REG_BUCK1DVS6, | |
293 | MAX8997_REG_BUCK1DVS7, | |
294 | MAX8997_REG_BUCK1DVS8, | |
295 | MAX8997_REG_BUCK2CTRL, | |
296 | MAX8997_REG_BUCK2DVS1, | |
297 | MAX8997_REG_BUCK2DVS2, | |
298 | MAX8997_REG_BUCK2DVS3, | |
299 | MAX8997_REG_BUCK2DVS4, | |
300 | MAX8997_REG_BUCK2DVS5, | |
301 | MAX8997_REG_BUCK2DVS6, | |
302 | MAX8997_REG_BUCK2DVS7, | |
303 | MAX8997_REG_BUCK2DVS8, | |
304 | MAX8997_REG_BUCK3CTRL, | |
305 | MAX8997_REG_BUCK3DVS, | |
306 | MAX8997_REG_BUCK4CTRL, | |
307 | MAX8997_REG_BUCK4DVS, | |
308 | MAX8997_REG_BUCK5CTRL, | |
309 | MAX8997_REG_BUCK5DVS1, | |
310 | MAX8997_REG_BUCK5DVS2, | |
311 | MAX8997_REG_BUCK5DVS3, | |
312 | MAX8997_REG_BUCK5DVS4, | |
313 | MAX8997_REG_BUCK5DVS5, | |
314 | MAX8997_REG_BUCK5DVS6, | |
315 | MAX8997_REG_BUCK5DVS7, | |
316 | MAX8997_REG_BUCK5DVS8, | |
317 | MAX8997_REG_BUCK6CTRL, | |
318 | MAX8997_REG_BUCK6BPSKIPCTRL, | |
319 | MAX8997_REG_BUCK7CTRL, | |
320 | MAX8997_REG_BUCK7DVS, | |
321 | MAX8997_REG_LDO1CTRL, | |
322 | MAX8997_REG_LDO2CTRL, | |
323 | MAX8997_REG_LDO3CTRL, | |
324 | MAX8997_REG_LDO4CTRL, | |
325 | MAX8997_REG_LDO5CTRL, | |
326 | MAX8997_REG_LDO6CTRL, | |
327 | MAX8997_REG_LDO7CTRL, | |
328 | MAX8997_REG_LDO8CTRL, | |
329 | MAX8997_REG_LDO9CTRL, | |
330 | MAX8997_REG_LDO10CTRL, | |
331 | MAX8997_REG_LDO11CTRL, | |
332 | MAX8997_REG_LDO12CTRL, | |
333 | MAX8997_REG_LDO13CTRL, | |
334 | MAX8997_REG_LDO14CTRL, | |
335 | MAX8997_REG_LDO15CTRL, | |
336 | MAX8997_REG_LDO16CTRL, | |
337 | MAX8997_REG_LDO17CTRL, | |
338 | MAX8997_REG_LDO18CTRL, | |
339 | MAX8997_REG_LDO21CTRL, | |
340 | MAX8997_REG_MBCCTRL1, | |
341 | MAX8997_REG_MBCCTRL2, | |
342 | MAX8997_REG_MBCCTRL3, | |
343 | MAX8997_REG_MBCCTRL4, | |
344 | MAX8997_REG_MBCCTRL5, | |
345 | MAX8997_REG_MBCCTRL6, | |
346 | MAX8997_REG_OTPCGHCVS, | |
347 | MAX8997_REG_SAFEOUTCTRL, | |
348 | MAX8997_REG_LBCNFG1, | |
349 | MAX8997_REG_LBCNFG2, | |
350 | MAX8997_REG_BBCCTRL, | |
351 | ||
352 | MAX8997_REG_FLASH1_CUR, | |
353 | MAX8997_REG_FLASH2_CUR, | |
354 | MAX8997_REG_MOVIE_CUR, | |
355 | MAX8997_REG_GSMB_CUR, | |
356 | MAX8997_REG_BOOST_CNTL, | |
357 | MAX8997_REG_LEN_CNTL, | |
358 | MAX8997_REG_FLASH_CNTL, | |
359 | MAX8997_REG_WDT_CNTL, | |
360 | MAX8997_REG_MAXFLASH1, | |
361 | MAX8997_REG_MAXFLASH2, | |
362 | MAX8997_REG_FLASHSTATUSMASK, | |
363 | ||
364 | MAX8997_REG_GPIOCNTL1, | |
365 | MAX8997_REG_GPIOCNTL2, | |
366 | MAX8997_REG_GPIOCNTL3, | |
367 | MAX8997_REG_GPIOCNTL4, | |
368 | MAX8997_REG_GPIOCNTL5, | |
369 | MAX8997_REG_GPIOCNTL6, | |
370 | MAX8997_REG_GPIOCNTL7, | |
371 | MAX8997_REG_GPIOCNTL8, | |
372 | MAX8997_REG_GPIOCNTL9, | |
373 | MAX8997_REG_GPIOCNTL10, | |
374 | MAX8997_REG_GPIOCNTL11, | |
375 | MAX8997_REG_GPIOCNTL12, | |
376 | ||
377 | MAX8997_REG_LDO1CONFIG, | |
378 | MAX8997_REG_LDO2CONFIG, | |
379 | MAX8997_REG_LDO3CONFIG, | |
380 | MAX8997_REG_LDO4CONFIG, | |
381 | MAX8997_REG_LDO5CONFIG, | |
382 | MAX8997_REG_LDO6CONFIG, | |
383 | MAX8997_REG_LDO7CONFIG, | |
384 | MAX8997_REG_LDO8CONFIG, | |
385 | MAX8997_REG_LDO9CONFIG, | |
386 | MAX8997_REG_LDO10CONFIG, | |
387 | MAX8997_REG_LDO11CONFIG, | |
388 | MAX8997_REG_LDO12CONFIG, | |
389 | MAX8997_REG_LDO13CONFIG, | |
390 | MAX8997_REG_LDO14CONFIG, | |
391 | MAX8997_REG_LDO15CONFIG, | |
392 | MAX8997_REG_LDO16CONFIG, | |
393 | MAX8997_REG_LDO17CONFIG, | |
394 | MAX8997_REG_LDO18CONFIG, | |
395 | MAX8997_REG_LDO21CONFIG, | |
396 | ||
397 | MAX8997_REG_DVSOKTIMER1, | |
398 | MAX8997_REG_DVSOKTIMER2, | |
399 | MAX8997_REG_DVSOKTIMER4, | |
400 | MAX8997_REG_DVSOKTIMER5, | |
401 | }; | |
402 | ||
b673e24c | 403 | static u8 max8997_dumpaddr_muic[] = { |
527e7e9a MH |
404 | MAX8997_MUIC_REG_INTMASK1, |
405 | MAX8997_MUIC_REG_INTMASK2, | |
406 | MAX8997_MUIC_REG_INTMASK3, | |
407 | MAX8997_MUIC_REG_CDETCTRL, | |
408 | MAX8997_MUIC_REG_CONTROL1, | |
409 | MAX8997_MUIC_REG_CONTROL2, | |
410 | MAX8997_MUIC_REG_CONTROL3, | |
411 | }; | |
412 | ||
b673e24c | 413 | static u8 max8997_dumpaddr_haptic[] = { |
527e7e9a MH |
414 | MAX8997_HAPTIC_REG_CONF1, |
415 | MAX8997_HAPTIC_REG_CONF2, | |
416 | MAX8997_HAPTIC_REG_DRVCONF, | |
417 | MAX8997_HAPTIC_REG_CYCLECONF1, | |
418 | MAX8997_HAPTIC_REG_CYCLECONF2, | |
419 | MAX8997_HAPTIC_REG_SIGCONF1, | |
420 | MAX8997_HAPTIC_REG_SIGCONF2, | |
421 | MAX8997_HAPTIC_REG_SIGCONF3, | |
422 | MAX8997_HAPTIC_REG_SIGCONF4, | |
423 | MAX8997_HAPTIC_REG_SIGDC1, | |
424 | MAX8997_HAPTIC_REG_SIGDC2, | |
425 | MAX8997_HAPTIC_REG_SIGPWMDC1, | |
426 | MAX8997_HAPTIC_REG_SIGPWMDC2, | |
427 | MAX8997_HAPTIC_REG_SIGPWMDC3, | |
428 | MAX8997_HAPTIC_REG_SIGPWMDC4, | |
429 | }; | |
430 | ||
431 | static int max8997_freeze(struct device *dev) | |
432 | { | |
433 | struct i2c_client *i2c = container_of(dev, struct i2c_client, dev); | |
434 | struct max8997_dev *max8997 = i2c_get_clientdata(i2c); | |
435 | int i; | |
436 | ||
437 | for (i = 0; i < ARRAY_SIZE(max8997_dumpaddr_pmic); i++) | |
438 | max8997_read_reg(i2c, max8997_dumpaddr_pmic[i], | |
439 | &max8997->reg_dump[i]); | |
440 | ||
441 | for (i = 0; i < ARRAY_SIZE(max8997_dumpaddr_muic); i++) | |
442 | max8997_read_reg(i2c, max8997_dumpaddr_muic[i], | |
443 | &max8997->reg_dump[i + MAX8997_REG_PMIC_END]); | |
444 | ||
445 | for (i = 0; i < ARRAY_SIZE(max8997_dumpaddr_haptic); i++) | |
446 | max8997_read_reg(i2c, max8997_dumpaddr_haptic[i], | |
447 | &max8997->reg_dump[i + MAX8997_REG_PMIC_END + | |
448 | MAX8997_MUIC_REG_END]); | |
449 | ||
450 | return 0; | |
451 | } | |
452 | ||
453 | static int max8997_restore(struct device *dev) | |
454 | { | |
455 | struct i2c_client *i2c = container_of(dev, struct i2c_client, dev); | |
456 | struct max8997_dev *max8997 = i2c_get_clientdata(i2c); | |
457 | int i; | |
458 | ||
459 | for (i = 0; i < ARRAY_SIZE(max8997_dumpaddr_pmic); i++) | |
460 | max8997_write_reg(i2c, max8997_dumpaddr_pmic[i], | |
461 | max8997->reg_dump[i]); | |
462 | ||
463 | for (i = 0; i < ARRAY_SIZE(max8997_dumpaddr_muic); i++) | |
464 | max8997_write_reg(i2c, max8997_dumpaddr_muic[i], | |
465 | max8997->reg_dump[i + MAX8997_REG_PMIC_END]); | |
466 | ||
467 | for (i = 0; i < ARRAY_SIZE(max8997_dumpaddr_haptic); i++) | |
468 | max8997_write_reg(i2c, max8997_dumpaddr_haptic[i], | |
469 | max8997->reg_dump[i + MAX8997_REG_PMIC_END + | |
470 | MAX8997_MUIC_REG_END]); | |
471 | ||
472 | return 0; | |
473 | } | |
474 | ||
01fdaab8 MH |
475 | static int max8997_suspend(struct device *dev) |
476 | { | |
477 | struct i2c_client *i2c = container_of(dev, struct i2c_client, dev); | |
478 | struct max8997_dev *max8997 = i2c_get_clientdata(i2c); | |
479 | ||
480 | if (device_may_wakeup(dev)) | |
481 | irq_set_irq_wake(max8997->irq, 1); | |
482 | return 0; | |
483 | } | |
484 | ||
485 | static int max8997_resume(struct device *dev) | |
486 | { | |
487 | struct i2c_client *i2c = container_of(dev, struct i2c_client, dev); | |
488 | struct max8997_dev *max8997 = i2c_get_clientdata(i2c); | |
489 | ||
490 | if (device_may_wakeup(dev)) | |
491 | irq_set_irq_wake(max8997->irq, 0); | |
492 | return max8997_irq_resume(max8997); | |
493 | } | |
494 | ||
b673e24c | 495 | static const struct dev_pm_ops max8997_pm = { |
01fdaab8 MH |
496 | .suspend = max8997_suspend, |
497 | .resume = max8997_resume, | |
527e7e9a MH |
498 | .freeze = max8997_freeze, |
499 | .restore = max8997_restore, | |
500 | }; | |
501 | ||
502 | static struct i2c_driver max8997_i2c_driver = { | |
503 | .driver = { | |
504 | .name = "max8997", | |
505 | .owner = THIS_MODULE, | |
506 | .pm = &max8997_pm, | |
77b71b37 | 507 | .of_match_table = of_match_ptr(max8997_pmic_dt_match), |
527e7e9a MH |
508 | }, |
509 | .probe = max8997_i2c_probe, | |
510 | .remove = max8997_i2c_remove, | |
511 | .id_table = max8997_i2c_id, | |
512 | }; | |
513 | ||
514 | static int __init max8997_i2c_init(void) | |
515 | { | |
516 | return i2c_add_driver(&max8997_i2c_driver); | |
517 | } | |
518 | /* init early so consumer devices can complete system boot */ | |
519 | subsys_initcall(max8997_i2c_init); | |
520 | ||
521 | static void __exit max8997_i2c_exit(void) | |
522 | { | |
523 | i2c_del_driver(&max8997_i2c_driver); | |
524 | } | |
525 | module_exit(max8997_i2c_exit); | |
526 | ||
527 | MODULE_DESCRIPTION("MAXIM 8997 multi-function core driver"); | |
528 | MODULE_AUTHOR("MyungJoo Ham <myungjoo.ham@samsung.com>"); | |
529 | MODULE_LICENSE("GPL"); |