MyungJoo Ham | 527e7e9 | 2011-03-04 15:50:26 +0900 | [diff] [blame] | 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 | |
| 24 | #include <linux/slab.h> |
| 25 | #include <linux/i2c.h> |
MyungJoo Ham | 01fdaab | 2011-08-19 14:39:40 +0900 | [diff] [blame] | 26 | #include <linux/interrupt.h> |
MyungJoo Ham | 527e7e9 | 2011-03-04 15:50:26 +0900 | [diff] [blame] | 27 | #include <linux/pm_runtime.h> |
Paul Gortmaker | 4e36dd3 | 2011-07-03 15:13:27 -0400 | [diff] [blame] | 28 | #include <linux/module.h> |
MyungJoo Ham | 527e7e9 | 2011-03-04 15:50:26 +0900 | [diff] [blame] | 29 | #include <linux/mutex.h> |
| 30 | #include <linux/mfd/core.h> |
| 31 | #include <linux/mfd/max8997.h> |
| 32 | #include <linux/mfd/max8997-private.h> |
| 33 | |
| 34 | #define I2C_ADDR_PMIC (0xCC >> 1) |
| 35 | #define I2C_ADDR_MUIC (0x4A >> 1) |
| 36 | #define I2C_ADDR_BATTERY (0x6C >> 1) |
| 37 | #define I2C_ADDR_RTC (0x0C >> 1) |
| 38 | #define I2C_ADDR_HAPTIC (0x90 >> 1) |
| 39 | |
| 40 | static struct mfd_cell max8997_devs[] = { |
| 41 | { .name = "max8997-pmic", }, |
| 42 | { .name = "max8997-rtc", }, |
| 43 | { .name = "max8997-battery", }, |
| 44 | { .name = "max8997-haptic", }, |
| 45 | { .name = "max8997-muic", }, |
Donggeun Kim | f6dd2db | 2011-12-14 18:23:55 +0900 | [diff] [blame] | 46 | { .name = "max8997-led", .id = 1 }, |
| 47 | { .name = "max8997-led", .id = 2 }, |
MyungJoo Ham | 527e7e9 | 2011-03-04 15:50:26 +0900 | [diff] [blame] | 48 | }; |
| 49 | |
| 50 | int max8997_read_reg(struct i2c_client *i2c, u8 reg, u8 *dest) |
| 51 | { |
| 52 | struct max8997_dev *max8997 = i2c_get_clientdata(i2c); |
| 53 | int ret; |
| 54 | |
| 55 | mutex_lock(&max8997->iolock); |
| 56 | ret = i2c_smbus_read_byte_data(i2c, reg); |
| 57 | mutex_unlock(&max8997->iolock); |
| 58 | if (ret < 0) |
| 59 | return ret; |
| 60 | |
| 61 | ret &= 0xff; |
| 62 | *dest = ret; |
| 63 | return 0; |
| 64 | } |
| 65 | EXPORT_SYMBOL_GPL(max8997_read_reg); |
| 66 | |
| 67 | int max8997_bulk_read(struct i2c_client *i2c, u8 reg, int count, u8 *buf) |
| 68 | { |
| 69 | struct max8997_dev *max8997 = i2c_get_clientdata(i2c); |
| 70 | int ret; |
| 71 | |
| 72 | mutex_lock(&max8997->iolock); |
| 73 | ret = i2c_smbus_read_i2c_block_data(i2c, reg, count, buf); |
| 74 | mutex_unlock(&max8997->iolock); |
| 75 | if (ret < 0) |
| 76 | return ret; |
| 77 | |
| 78 | return 0; |
| 79 | } |
| 80 | EXPORT_SYMBOL_GPL(max8997_bulk_read); |
| 81 | |
| 82 | int max8997_write_reg(struct i2c_client *i2c, u8 reg, u8 value) |
| 83 | { |
| 84 | struct max8997_dev *max8997 = i2c_get_clientdata(i2c); |
| 85 | int ret; |
| 86 | |
| 87 | mutex_lock(&max8997->iolock); |
| 88 | ret = i2c_smbus_write_byte_data(i2c, reg, value); |
| 89 | mutex_unlock(&max8997->iolock); |
| 90 | return ret; |
| 91 | } |
| 92 | EXPORT_SYMBOL_GPL(max8997_write_reg); |
| 93 | |
| 94 | int max8997_bulk_write(struct i2c_client *i2c, u8 reg, int count, u8 *buf) |
| 95 | { |
| 96 | struct max8997_dev *max8997 = i2c_get_clientdata(i2c); |
| 97 | int ret; |
| 98 | |
| 99 | mutex_lock(&max8997->iolock); |
| 100 | ret = i2c_smbus_write_i2c_block_data(i2c, reg, count, buf); |
| 101 | mutex_unlock(&max8997->iolock); |
| 102 | if (ret < 0) |
| 103 | return ret; |
| 104 | |
| 105 | return 0; |
| 106 | } |
| 107 | EXPORT_SYMBOL_GPL(max8997_bulk_write); |
| 108 | |
| 109 | int max8997_update_reg(struct i2c_client *i2c, u8 reg, u8 val, u8 mask) |
| 110 | { |
| 111 | struct max8997_dev *max8997 = i2c_get_clientdata(i2c); |
| 112 | int ret; |
| 113 | |
| 114 | mutex_lock(&max8997->iolock); |
| 115 | ret = i2c_smbus_read_byte_data(i2c, reg); |
| 116 | if (ret >= 0) { |
| 117 | u8 old_val = ret & 0xff; |
| 118 | u8 new_val = (val & mask) | (old_val & (~mask)); |
| 119 | ret = i2c_smbus_write_byte_data(i2c, reg, new_val); |
| 120 | } |
| 121 | mutex_unlock(&max8997->iolock); |
| 122 | return ret; |
| 123 | } |
| 124 | EXPORT_SYMBOL_GPL(max8997_update_reg); |
| 125 | |
| 126 | static int max8997_i2c_probe(struct i2c_client *i2c, |
| 127 | const struct i2c_device_id *id) |
| 128 | { |
| 129 | struct max8997_dev *max8997; |
| 130 | struct max8997_platform_data *pdata = i2c->dev.platform_data; |
| 131 | int ret = 0; |
| 132 | |
| 133 | max8997 = kzalloc(sizeof(struct max8997_dev), GFP_KERNEL); |
| 134 | if (max8997 == NULL) |
| 135 | return -ENOMEM; |
| 136 | |
| 137 | i2c_set_clientdata(i2c, max8997); |
| 138 | max8997->dev = &i2c->dev; |
| 139 | max8997->i2c = i2c; |
| 140 | max8997->type = id->driver_data; |
MyungJoo Ham | 7eb3154 | 2011-08-18 16:37:35 +0900 | [diff] [blame] | 141 | max8997->irq = i2c->irq; |
MyungJoo Ham | 527e7e9 | 2011-03-04 15:50:26 +0900 | [diff] [blame] | 142 | |
| 143 | if (!pdata) |
| 144 | goto err; |
| 145 | |
MyungJoo Ham | 7eb3154 | 2011-08-18 16:37:35 +0900 | [diff] [blame] | 146 | max8997->ono = pdata->ono; |
MyungJoo Ham | 527e7e9 | 2011-03-04 15:50:26 +0900 | [diff] [blame] | 147 | |
| 148 | mutex_init(&max8997->iolock); |
| 149 | |
| 150 | max8997->rtc = i2c_new_dummy(i2c->adapter, I2C_ADDR_RTC); |
| 151 | i2c_set_clientdata(max8997->rtc, max8997); |
| 152 | max8997->haptic = i2c_new_dummy(i2c->adapter, I2C_ADDR_HAPTIC); |
| 153 | i2c_set_clientdata(max8997->haptic, max8997); |
| 154 | max8997->muic = i2c_new_dummy(i2c->adapter, I2C_ADDR_MUIC); |
| 155 | i2c_set_clientdata(max8997->muic, max8997); |
| 156 | |
| 157 | pm_runtime_set_active(max8997->dev); |
| 158 | |
MyungJoo Ham | 7eb3154 | 2011-08-18 16:37:35 +0900 | [diff] [blame] | 159 | max8997_irq_init(max8997); |
| 160 | |
MyungJoo Ham | 527e7e9 | 2011-03-04 15:50:26 +0900 | [diff] [blame] | 161 | mfd_add_devices(max8997->dev, -1, max8997_devs, |
| 162 | ARRAY_SIZE(max8997_devs), |
| 163 | NULL, 0); |
| 164 | |
| 165 | /* |
| 166 | * TODO: enable others (flash, muic, rtc, battery, ...) and |
| 167 | * check the return value |
| 168 | */ |
| 169 | |
| 170 | if (ret < 0) |
| 171 | goto err_mfd; |
| 172 | |
MyungJoo Ham | 01fdaab | 2011-08-19 14:39:40 +0900 | [diff] [blame] | 173 | /* MAX8997 has a power button input. */ |
| 174 | device_init_wakeup(max8997->dev, pdata->wakeup); |
| 175 | |
MyungJoo Ham | 527e7e9 | 2011-03-04 15:50:26 +0900 | [diff] [blame] | 176 | return ret; |
| 177 | |
| 178 | err_mfd: |
| 179 | mfd_remove_devices(max8997->dev); |
| 180 | i2c_unregister_device(max8997->muic); |
| 181 | i2c_unregister_device(max8997->haptic); |
| 182 | i2c_unregister_device(max8997->rtc); |
| 183 | err: |
| 184 | kfree(max8997); |
| 185 | return ret; |
| 186 | } |
| 187 | |
| 188 | static int max8997_i2c_remove(struct i2c_client *i2c) |
| 189 | { |
| 190 | struct max8997_dev *max8997 = i2c_get_clientdata(i2c); |
| 191 | |
| 192 | mfd_remove_devices(max8997->dev); |
| 193 | i2c_unregister_device(max8997->muic); |
| 194 | i2c_unregister_device(max8997->haptic); |
| 195 | i2c_unregister_device(max8997->rtc); |
| 196 | kfree(max8997); |
| 197 | |
| 198 | return 0; |
| 199 | } |
| 200 | |
| 201 | static const struct i2c_device_id max8997_i2c_id[] = { |
| 202 | { "max8997", TYPE_MAX8997 }, |
| 203 | { "max8966", TYPE_MAX8966 }, |
| 204 | { } |
| 205 | }; |
| 206 | MODULE_DEVICE_TABLE(i2c, max8998_i2c_id); |
| 207 | |
Sachin Kamat | b673e24c | 2012-06-04 16:39:07 +0530 | [diff] [blame] | 208 | static u8 max8997_dumpaddr_pmic[] = { |
MyungJoo Ham | 527e7e9 | 2011-03-04 15:50:26 +0900 | [diff] [blame] | 209 | MAX8997_REG_INT1MSK, |
| 210 | MAX8997_REG_INT2MSK, |
| 211 | MAX8997_REG_INT3MSK, |
| 212 | MAX8997_REG_INT4MSK, |
| 213 | MAX8997_REG_MAINCON1, |
| 214 | MAX8997_REG_MAINCON2, |
| 215 | MAX8997_REG_BUCKRAMP, |
| 216 | MAX8997_REG_BUCK1CTRL, |
| 217 | MAX8997_REG_BUCK1DVS1, |
| 218 | MAX8997_REG_BUCK1DVS2, |
| 219 | MAX8997_REG_BUCK1DVS3, |
| 220 | MAX8997_REG_BUCK1DVS4, |
| 221 | MAX8997_REG_BUCK1DVS5, |
| 222 | MAX8997_REG_BUCK1DVS6, |
| 223 | MAX8997_REG_BUCK1DVS7, |
| 224 | MAX8997_REG_BUCK1DVS8, |
| 225 | MAX8997_REG_BUCK2CTRL, |
| 226 | MAX8997_REG_BUCK2DVS1, |
| 227 | MAX8997_REG_BUCK2DVS2, |
| 228 | MAX8997_REG_BUCK2DVS3, |
| 229 | MAX8997_REG_BUCK2DVS4, |
| 230 | MAX8997_REG_BUCK2DVS5, |
| 231 | MAX8997_REG_BUCK2DVS6, |
| 232 | MAX8997_REG_BUCK2DVS7, |
| 233 | MAX8997_REG_BUCK2DVS8, |
| 234 | MAX8997_REG_BUCK3CTRL, |
| 235 | MAX8997_REG_BUCK3DVS, |
| 236 | MAX8997_REG_BUCK4CTRL, |
| 237 | MAX8997_REG_BUCK4DVS, |
| 238 | MAX8997_REG_BUCK5CTRL, |
| 239 | MAX8997_REG_BUCK5DVS1, |
| 240 | MAX8997_REG_BUCK5DVS2, |
| 241 | MAX8997_REG_BUCK5DVS3, |
| 242 | MAX8997_REG_BUCK5DVS4, |
| 243 | MAX8997_REG_BUCK5DVS5, |
| 244 | MAX8997_REG_BUCK5DVS6, |
| 245 | MAX8997_REG_BUCK5DVS7, |
| 246 | MAX8997_REG_BUCK5DVS8, |
| 247 | MAX8997_REG_BUCK6CTRL, |
| 248 | MAX8997_REG_BUCK6BPSKIPCTRL, |
| 249 | MAX8997_REG_BUCK7CTRL, |
| 250 | MAX8997_REG_BUCK7DVS, |
| 251 | MAX8997_REG_LDO1CTRL, |
| 252 | MAX8997_REG_LDO2CTRL, |
| 253 | MAX8997_REG_LDO3CTRL, |
| 254 | MAX8997_REG_LDO4CTRL, |
| 255 | MAX8997_REG_LDO5CTRL, |
| 256 | MAX8997_REG_LDO6CTRL, |
| 257 | MAX8997_REG_LDO7CTRL, |
| 258 | MAX8997_REG_LDO8CTRL, |
| 259 | MAX8997_REG_LDO9CTRL, |
| 260 | MAX8997_REG_LDO10CTRL, |
| 261 | MAX8997_REG_LDO11CTRL, |
| 262 | MAX8997_REG_LDO12CTRL, |
| 263 | MAX8997_REG_LDO13CTRL, |
| 264 | MAX8997_REG_LDO14CTRL, |
| 265 | MAX8997_REG_LDO15CTRL, |
| 266 | MAX8997_REG_LDO16CTRL, |
| 267 | MAX8997_REG_LDO17CTRL, |
| 268 | MAX8997_REG_LDO18CTRL, |
| 269 | MAX8997_REG_LDO21CTRL, |
| 270 | MAX8997_REG_MBCCTRL1, |
| 271 | MAX8997_REG_MBCCTRL2, |
| 272 | MAX8997_REG_MBCCTRL3, |
| 273 | MAX8997_REG_MBCCTRL4, |
| 274 | MAX8997_REG_MBCCTRL5, |
| 275 | MAX8997_REG_MBCCTRL6, |
| 276 | MAX8997_REG_OTPCGHCVS, |
| 277 | MAX8997_REG_SAFEOUTCTRL, |
| 278 | MAX8997_REG_LBCNFG1, |
| 279 | MAX8997_REG_LBCNFG2, |
| 280 | MAX8997_REG_BBCCTRL, |
| 281 | |
| 282 | MAX8997_REG_FLASH1_CUR, |
| 283 | MAX8997_REG_FLASH2_CUR, |
| 284 | MAX8997_REG_MOVIE_CUR, |
| 285 | MAX8997_REG_GSMB_CUR, |
| 286 | MAX8997_REG_BOOST_CNTL, |
| 287 | MAX8997_REG_LEN_CNTL, |
| 288 | MAX8997_REG_FLASH_CNTL, |
| 289 | MAX8997_REG_WDT_CNTL, |
| 290 | MAX8997_REG_MAXFLASH1, |
| 291 | MAX8997_REG_MAXFLASH2, |
| 292 | MAX8997_REG_FLASHSTATUSMASK, |
| 293 | |
| 294 | MAX8997_REG_GPIOCNTL1, |
| 295 | MAX8997_REG_GPIOCNTL2, |
| 296 | MAX8997_REG_GPIOCNTL3, |
| 297 | MAX8997_REG_GPIOCNTL4, |
| 298 | MAX8997_REG_GPIOCNTL5, |
| 299 | MAX8997_REG_GPIOCNTL6, |
| 300 | MAX8997_REG_GPIOCNTL7, |
| 301 | MAX8997_REG_GPIOCNTL8, |
| 302 | MAX8997_REG_GPIOCNTL9, |
| 303 | MAX8997_REG_GPIOCNTL10, |
| 304 | MAX8997_REG_GPIOCNTL11, |
| 305 | MAX8997_REG_GPIOCNTL12, |
| 306 | |
| 307 | MAX8997_REG_LDO1CONFIG, |
| 308 | MAX8997_REG_LDO2CONFIG, |
| 309 | MAX8997_REG_LDO3CONFIG, |
| 310 | MAX8997_REG_LDO4CONFIG, |
| 311 | MAX8997_REG_LDO5CONFIG, |
| 312 | MAX8997_REG_LDO6CONFIG, |
| 313 | MAX8997_REG_LDO7CONFIG, |
| 314 | MAX8997_REG_LDO8CONFIG, |
| 315 | MAX8997_REG_LDO9CONFIG, |
| 316 | MAX8997_REG_LDO10CONFIG, |
| 317 | MAX8997_REG_LDO11CONFIG, |
| 318 | MAX8997_REG_LDO12CONFIG, |
| 319 | MAX8997_REG_LDO13CONFIG, |
| 320 | MAX8997_REG_LDO14CONFIG, |
| 321 | MAX8997_REG_LDO15CONFIG, |
| 322 | MAX8997_REG_LDO16CONFIG, |
| 323 | MAX8997_REG_LDO17CONFIG, |
| 324 | MAX8997_REG_LDO18CONFIG, |
| 325 | MAX8997_REG_LDO21CONFIG, |
| 326 | |
| 327 | MAX8997_REG_DVSOKTIMER1, |
| 328 | MAX8997_REG_DVSOKTIMER2, |
| 329 | MAX8997_REG_DVSOKTIMER4, |
| 330 | MAX8997_REG_DVSOKTIMER5, |
| 331 | }; |
| 332 | |
Sachin Kamat | b673e24c | 2012-06-04 16:39:07 +0530 | [diff] [blame] | 333 | static u8 max8997_dumpaddr_muic[] = { |
MyungJoo Ham | 527e7e9 | 2011-03-04 15:50:26 +0900 | [diff] [blame] | 334 | MAX8997_MUIC_REG_INTMASK1, |
| 335 | MAX8997_MUIC_REG_INTMASK2, |
| 336 | MAX8997_MUIC_REG_INTMASK3, |
| 337 | MAX8997_MUIC_REG_CDETCTRL, |
| 338 | MAX8997_MUIC_REG_CONTROL1, |
| 339 | MAX8997_MUIC_REG_CONTROL2, |
| 340 | MAX8997_MUIC_REG_CONTROL3, |
| 341 | }; |
| 342 | |
Sachin Kamat | b673e24c | 2012-06-04 16:39:07 +0530 | [diff] [blame] | 343 | static u8 max8997_dumpaddr_haptic[] = { |
MyungJoo Ham | 527e7e9 | 2011-03-04 15:50:26 +0900 | [diff] [blame] | 344 | MAX8997_HAPTIC_REG_CONF1, |
| 345 | MAX8997_HAPTIC_REG_CONF2, |
| 346 | MAX8997_HAPTIC_REG_DRVCONF, |
| 347 | MAX8997_HAPTIC_REG_CYCLECONF1, |
| 348 | MAX8997_HAPTIC_REG_CYCLECONF2, |
| 349 | MAX8997_HAPTIC_REG_SIGCONF1, |
| 350 | MAX8997_HAPTIC_REG_SIGCONF2, |
| 351 | MAX8997_HAPTIC_REG_SIGCONF3, |
| 352 | MAX8997_HAPTIC_REG_SIGCONF4, |
| 353 | MAX8997_HAPTIC_REG_SIGDC1, |
| 354 | MAX8997_HAPTIC_REG_SIGDC2, |
| 355 | MAX8997_HAPTIC_REG_SIGPWMDC1, |
| 356 | MAX8997_HAPTIC_REG_SIGPWMDC2, |
| 357 | MAX8997_HAPTIC_REG_SIGPWMDC3, |
| 358 | MAX8997_HAPTIC_REG_SIGPWMDC4, |
| 359 | }; |
| 360 | |
| 361 | static int max8997_freeze(struct device *dev) |
| 362 | { |
| 363 | struct i2c_client *i2c = container_of(dev, struct i2c_client, dev); |
| 364 | struct max8997_dev *max8997 = i2c_get_clientdata(i2c); |
| 365 | int i; |
| 366 | |
| 367 | for (i = 0; i < ARRAY_SIZE(max8997_dumpaddr_pmic); i++) |
| 368 | max8997_read_reg(i2c, max8997_dumpaddr_pmic[i], |
| 369 | &max8997->reg_dump[i]); |
| 370 | |
| 371 | for (i = 0; i < ARRAY_SIZE(max8997_dumpaddr_muic); i++) |
| 372 | max8997_read_reg(i2c, max8997_dumpaddr_muic[i], |
| 373 | &max8997->reg_dump[i + MAX8997_REG_PMIC_END]); |
| 374 | |
| 375 | for (i = 0; i < ARRAY_SIZE(max8997_dumpaddr_haptic); i++) |
| 376 | max8997_read_reg(i2c, max8997_dumpaddr_haptic[i], |
| 377 | &max8997->reg_dump[i + MAX8997_REG_PMIC_END + |
| 378 | MAX8997_MUIC_REG_END]); |
| 379 | |
| 380 | return 0; |
| 381 | } |
| 382 | |
| 383 | static int max8997_restore(struct device *dev) |
| 384 | { |
| 385 | struct i2c_client *i2c = container_of(dev, struct i2c_client, dev); |
| 386 | struct max8997_dev *max8997 = i2c_get_clientdata(i2c); |
| 387 | int i; |
| 388 | |
| 389 | for (i = 0; i < ARRAY_SIZE(max8997_dumpaddr_pmic); i++) |
| 390 | max8997_write_reg(i2c, max8997_dumpaddr_pmic[i], |
| 391 | max8997->reg_dump[i]); |
| 392 | |
| 393 | for (i = 0; i < ARRAY_SIZE(max8997_dumpaddr_muic); i++) |
| 394 | max8997_write_reg(i2c, max8997_dumpaddr_muic[i], |
| 395 | max8997->reg_dump[i + MAX8997_REG_PMIC_END]); |
| 396 | |
| 397 | for (i = 0; i < ARRAY_SIZE(max8997_dumpaddr_haptic); i++) |
| 398 | max8997_write_reg(i2c, max8997_dumpaddr_haptic[i], |
| 399 | max8997->reg_dump[i + MAX8997_REG_PMIC_END + |
| 400 | MAX8997_MUIC_REG_END]); |
| 401 | |
| 402 | return 0; |
| 403 | } |
| 404 | |
MyungJoo Ham | 01fdaab | 2011-08-19 14:39:40 +0900 | [diff] [blame] | 405 | static int max8997_suspend(struct device *dev) |
| 406 | { |
| 407 | struct i2c_client *i2c = container_of(dev, struct i2c_client, dev); |
| 408 | struct max8997_dev *max8997 = i2c_get_clientdata(i2c); |
| 409 | |
| 410 | if (device_may_wakeup(dev)) |
| 411 | irq_set_irq_wake(max8997->irq, 1); |
| 412 | return 0; |
| 413 | } |
| 414 | |
| 415 | static int max8997_resume(struct device *dev) |
| 416 | { |
| 417 | struct i2c_client *i2c = container_of(dev, struct i2c_client, dev); |
| 418 | struct max8997_dev *max8997 = i2c_get_clientdata(i2c); |
| 419 | |
| 420 | if (device_may_wakeup(dev)) |
| 421 | irq_set_irq_wake(max8997->irq, 0); |
| 422 | return max8997_irq_resume(max8997); |
| 423 | } |
| 424 | |
Sachin Kamat | b673e24c | 2012-06-04 16:39:07 +0530 | [diff] [blame] | 425 | static const struct dev_pm_ops max8997_pm = { |
MyungJoo Ham | 01fdaab | 2011-08-19 14:39:40 +0900 | [diff] [blame] | 426 | .suspend = max8997_suspend, |
| 427 | .resume = max8997_resume, |
MyungJoo Ham | 527e7e9 | 2011-03-04 15:50:26 +0900 | [diff] [blame] | 428 | .freeze = max8997_freeze, |
| 429 | .restore = max8997_restore, |
| 430 | }; |
| 431 | |
| 432 | static struct i2c_driver max8997_i2c_driver = { |
| 433 | .driver = { |
| 434 | .name = "max8997", |
| 435 | .owner = THIS_MODULE, |
| 436 | .pm = &max8997_pm, |
| 437 | }, |
| 438 | .probe = max8997_i2c_probe, |
| 439 | .remove = max8997_i2c_remove, |
| 440 | .id_table = max8997_i2c_id, |
| 441 | }; |
| 442 | |
| 443 | static int __init max8997_i2c_init(void) |
| 444 | { |
| 445 | return i2c_add_driver(&max8997_i2c_driver); |
| 446 | } |
| 447 | /* init early so consumer devices can complete system boot */ |
| 448 | subsys_initcall(max8997_i2c_init); |
| 449 | |
| 450 | static void __exit max8997_i2c_exit(void) |
| 451 | { |
| 452 | i2c_del_driver(&max8997_i2c_driver); |
| 453 | } |
| 454 | module_exit(max8997_i2c_exit); |
| 455 | |
| 456 | MODULE_DESCRIPTION("MAXIM 8997 multi-function core driver"); |
| 457 | MODULE_AUTHOR("MyungJoo Ham <myungjoo.ham@samsung.com>"); |
| 458 | MODULE_LICENSE("GPL"); |