1 /* 2 * Base driver for Marvell 88PM8607 3 * 4 * Copyright (C) 2009 Marvell International Ltd. 5 * Haojian Zhuang <haojian.zhuang@marvell.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 version 2 as 9 * published by the Free Software Foundation. 10 */ 11 12 #include <linux/kernel.h> 13 #include <linux/module.h> 14 #include <linux/err.h> 15 #include <linux/i2c.h> 16 #include <linux/irq.h> 17 #include <linux/interrupt.h> 18 #include <linux/irqdomain.h> 19 #include <linux/of.h> 20 #include <linux/of_platform.h> 21 #include <linux/platform_device.h> 22 #include <linux/regmap.h> 23 #include <linux/slab.h> 24 #include <linux/mfd/core.h> 25 #include <linux/mfd/88pm860x.h> 26 #include <linux/regulator/machine.h> 27 28 #define INT_STATUS_NUM 3 29 30 static struct resource bk0_resources[] __devinitdata = { 31 {2, 2, "duty cycle", IORESOURCE_REG, }, 32 {3, 3, "always on", IORESOURCE_REG, }, 33 {3, 3, "current", IORESOURCE_REG, }, 34 }; 35 static struct resource bk1_resources[] __devinitdata = { 36 {4, 4, "duty cycle", IORESOURCE_REG, }, 37 {5, 5, "always on", IORESOURCE_REG, }, 38 {5, 5, "current", IORESOURCE_REG, }, 39 }; 40 static struct resource bk2_resources[] __devinitdata = { 41 {6, 6, "duty cycle", IORESOURCE_REG, }, 42 {7, 7, "always on", IORESOURCE_REG, }, 43 {5, 5, "current", IORESOURCE_REG, }, 44 }; 45 46 static struct resource led0_resources[] __devinitdata = { 47 /* RGB1 Red LED */ 48 {0xd, 0xd, "control", IORESOURCE_REG, }, 49 {0xc, 0xc, "blink", IORESOURCE_REG, }, 50 }; 51 static struct resource led1_resources[] __devinitdata = { 52 /* RGB1 Green LED */ 53 {0xe, 0xe, "control", IORESOURCE_REG, }, 54 {0xc, 0xc, "blink", IORESOURCE_REG, }, 55 }; 56 static struct resource led2_resources[] __devinitdata = { 57 /* RGB1 Blue LED */ 58 {0xf, 0xf, "control", IORESOURCE_REG, }, 59 {0xc, 0xc, "blink", IORESOURCE_REG, }, 60 }; 61 static struct resource led3_resources[] __devinitdata = { 62 /* RGB2 Red LED */ 63 {0x9, 0x9, "control", IORESOURCE_REG, }, 64 {0x8, 0x8, "blink", IORESOURCE_REG, }, 65 }; 66 static struct resource led4_resources[] __devinitdata = { 67 /* RGB2 Green LED */ 68 {0xa, 0xa, "control", IORESOURCE_REG, }, 69 {0x8, 0x8, "blink", IORESOURCE_REG, }, 70 }; 71 static struct resource led5_resources[] __devinitdata = { 72 /* RGB2 Blue LED */ 73 {0xb, 0xb, "control", IORESOURCE_REG, }, 74 {0x8, 0x8, "blink", IORESOURCE_REG, }, 75 }; 76 77 static struct resource buck1_resources[] __devinitdata = { 78 {0x24, 0x24, "buck set", IORESOURCE_REG, }, 79 }; 80 static struct resource buck2_resources[] __devinitdata = { 81 {0x25, 0x25, "buck set", IORESOURCE_REG, }, 82 }; 83 static struct resource buck3_resources[] __devinitdata = { 84 {0x26, 0x26, "buck set", IORESOURCE_REG, }, 85 }; 86 static struct resource ldo1_resources[] __devinitdata = { 87 {0x10, 0x10, "ldo set", IORESOURCE_REG, }, 88 }; 89 static struct resource ldo2_resources[] __devinitdata = { 90 {0x11, 0x11, "ldo set", IORESOURCE_REG, }, 91 }; 92 static struct resource ldo3_resources[] __devinitdata = { 93 {0x12, 0x12, "ldo set", IORESOURCE_REG, }, 94 }; 95 static struct resource ldo4_resources[] __devinitdata = { 96 {0x13, 0x13, "ldo set", IORESOURCE_REG, }, 97 }; 98 static struct resource ldo5_resources[] __devinitdata = { 99 {0x14, 0x14, "ldo set", IORESOURCE_REG, }, 100 }; 101 static struct resource ldo6_resources[] __devinitdata = { 102 {0x15, 0x15, "ldo set", IORESOURCE_REG, }, 103 }; 104 static struct resource ldo7_resources[] __devinitdata = { 105 {0x16, 0x16, "ldo set", IORESOURCE_REG, }, 106 }; 107 static struct resource ldo8_resources[] __devinitdata = { 108 {0x17, 0x17, "ldo set", IORESOURCE_REG, }, 109 }; 110 static struct resource ldo9_resources[] __devinitdata = { 111 {0x18, 0x18, "ldo set", IORESOURCE_REG, }, 112 }; 113 static struct resource ldo10_resources[] __devinitdata = { 114 {0x19, 0x19, "ldo set", IORESOURCE_REG, }, 115 }; 116 static struct resource ldo12_resources[] __devinitdata = { 117 {0x1a, 0x1a, "ldo set", IORESOURCE_REG, }, 118 }; 119 static struct resource ldo_vibrator_resources[] __devinitdata = { 120 {0x28, 0x28, "ldo set", IORESOURCE_REG, }, 121 }; 122 static struct resource ldo14_resources[] __devinitdata = { 123 {0x1b, 0x1b, "ldo set", IORESOURCE_REG, }, 124 }; 125 126 static struct resource touch_resources[] __devinitdata = { 127 {PM8607_IRQ_PEN, PM8607_IRQ_PEN, "touch", IORESOURCE_IRQ,}, 128 }; 129 130 static struct resource onkey_resources[] __devinitdata = { 131 {PM8607_IRQ_ONKEY, PM8607_IRQ_ONKEY, "onkey", IORESOURCE_IRQ,}, 132 }; 133 134 static struct resource codec_resources[] __devinitdata = { 135 /* Headset microphone insertion or removal */ 136 {PM8607_IRQ_MICIN, PM8607_IRQ_MICIN, "micin", IORESOURCE_IRQ,}, 137 /* Hook-switch press or release */ 138 {PM8607_IRQ_HOOK, PM8607_IRQ_HOOK, "hook", IORESOURCE_IRQ,}, 139 /* Headset insertion or removal */ 140 {PM8607_IRQ_HEADSET, PM8607_IRQ_HEADSET, "headset", IORESOURCE_IRQ,}, 141 /* Audio short */ 142 {PM8607_IRQ_AUDIO_SHORT, PM8607_IRQ_AUDIO_SHORT, "audio-short", IORESOURCE_IRQ,}, 143 }; 144 145 static struct resource battery_resources[] __devinitdata = { 146 {PM8607_IRQ_CC, PM8607_IRQ_CC, "columb counter", IORESOURCE_IRQ,}, 147 {PM8607_IRQ_BAT, PM8607_IRQ_BAT, "battery", IORESOURCE_IRQ,}, 148 }; 149 150 static struct resource charger_resources[] __devinitdata = { 151 {PM8607_IRQ_CHG, PM8607_IRQ_CHG, "charger detect", IORESOURCE_IRQ,}, 152 {PM8607_IRQ_CHG_DONE, PM8607_IRQ_CHG_DONE, "charging done", IORESOURCE_IRQ,}, 153 {PM8607_IRQ_CHG_FAULT, PM8607_IRQ_CHG_FAULT, "charging timeout", IORESOURCE_IRQ,}, 154 {PM8607_IRQ_GPADC1, PM8607_IRQ_GPADC1, "battery temperature", IORESOURCE_IRQ,}, 155 {PM8607_IRQ_VBAT, PM8607_IRQ_VBAT, "battery voltage", IORESOURCE_IRQ,}, 156 {PM8607_IRQ_VCHG, PM8607_IRQ_VCHG, "vchg voltage", IORESOURCE_IRQ,}, 157 }; 158 159 static struct resource rtc_resources[] __devinitdata = { 160 {PM8607_IRQ_RTC, PM8607_IRQ_RTC, "rtc", IORESOURCE_IRQ,}, 161 }; 162 163 static struct mfd_cell bk_devs[] __devinitdata = { 164 { 165 .name = "88pm860x-backlight", 166 .id = 0, 167 .num_resources = ARRAY_SIZE(bk0_resources), 168 .resources = bk0_resources, 169 }, { 170 .name = "88pm860x-backlight", 171 .id = 1, 172 .num_resources = ARRAY_SIZE(bk1_resources), 173 .resources = bk1_resources, 174 }, { 175 .name = "88pm860x-backlight", 176 .id = 2, 177 .num_resources = ARRAY_SIZE(bk2_resources), 178 .resources = bk2_resources, 179 }, 180 }; 181 182 static struct mfd_cell led_devs[] __devinitdata = { 183 { 184 .name = "88pm860x-led", 185 .id = 0, 186 .num_resources = ARRAY_SIZE(led0_resources), 187 .resources = led0_resources, 188 }, { 189 .name = "88pm860x-led", 190 .id = 1, 191 .num_resources = ARRAY_SIZE(led1_resources), 192 .resources = led1_resources, 193 }, { 194 .name = "88pm860x-led", 195 .id = 2, 196 .num_resources = ARRAY_SIZE(led2_resources), 197 .resources = led2_resources, 198 }, { 199 .name = "88pm860x-led", 200 .id = 3, 201 .num_resources = ARRAY_SIZE(led3_resources), 202 .resources = led3_resources, 203 }, { 204 .name = "88pm860x-led", 205 .id = 4, 206 .num_resources = ARRAY_SIZE(led4_resources), 207 .resources = led4_resources, 208 }, { 209 .name = "88pm860x-led", 210 .id = 5, 211 .num_resources = ARRAY_SIZE(led5_resources), 212 .resources = led5_resources, 213 }, 214 }; 215 216 static struct mfd_cell reg_devs[] __devinitdata = { 217 { 218 .name = "88pm860x-regulator", 219 .id = 0, 220 .num_resources = ARRAY_SIZE(buck1_resources), 221 .resources = buck1_resources, 222 }, { 223 .name = "88pm860x-regulator", 224 .id = 1, 225 .num_resources = ARRAY_SIZE(buck2_resources), 226 .resources = buck2_resources, 227 }, { 228 .name = "88pm860x-regulator", 229 .id = 2, 230 .num_resources = ARRAY_SIZE(buck3_resources), 231 .resources = buck3_resources, 232 }, { 233 .name = "88pm860x-regulator", 234 .id = 3, 235 .num_resources = ARRAY_SIZE(ldo1_resources), 236 .resources = ldo1_resources, 237 }, { 238 .name = "88pm860x-regulator", 239 .id = 4, 240 .num_resources = ARRAY_SIZE(ldo2_resources), 241 .resources = ldo2_resources, 242 }, { 243 .name = "88pm860x-regulator", 244 .id = 5, 245 .num_resources = ARRAY_SIZE(ldo3_resources), 246 .resources = ldo3_resources, 247 }, { 248 .name = "88pm860x-regulator", 249 .id = 6, 250 .num_resources = ARRAY_SIZE(ldo4_resources), 251 .resources = ldo4_resources, 252 }, { 253 .name = "88pm860x-regulator", 254 .id = 7, 255 .num_resources = ARRAY_SIZE(ldo5_resources), 256 .resources = ldo5_resources, 257 }, { 258 .name = "88pm860x-regulator", 259 .id = 8, 260 .num_resources = ARRAY_SIZE(ldo6_resources), 261 .resources = ldo6_resources, 262 }, { 263 .name = "88pm860x-regulator", 264 .id = 9, 265 .num_resources = ARRAY_SIZE(ldo7_resources), 266 .resources = ldo7_resources, 267 }, { 268 .name = "88pm860x-regulator", 269 .id = 10, 270 .num_resources = ARRAY_SIZE(ldo8_resources), 271 .resources = ldo8_resources, 272 }, { 273 .name = "88pm860x-regulator", 274 .id = 11, 275 .num_resources = ARRAY_SIZE(ldo9_resources), 276 .resources = ldo9_resources, 277 }, { 278 .name = "88pm860x-regulator", 279 .id = 12, 280 .num_resources = ARRAY_SIZE(ldo10_resources), 281 .resources = ldo10_resources, 282 }, { 283 .name = "88pm860x-regulator", 284 .id = 13, 285 .num_resources = ARRAY_SIZE(ldo12_resources), 286 .resources = ldo12_resources, 287 }, { 288 .name = "88pm860x-regulator", 289 .id = 14, 290 .num_resources = ARRAY_SIZE(ldo_vibrator_resources), 291 .resources = ldo_vibrator_resources, 292 }, { 293 .name = "88pm860x-regulator", 294 .id = 15, 295 .num_resources = ARRAY_SIZE(ldo14_resources), 296 .resources = ldo14_resources, 297 }, 298 }; 299 300 static struct mfd_cell touch_devs[] = { 301 {"88pm860x-touch", -1,}, 302 }; 303 304 static struct mfd_cell onkey_devs[] = { 305 {"88pm860x-onkey", -1,}, 306 }; 307 308 static struct mfd_cell codec_devs[] = { 309 {"88pm860x-codec", -1,}, 310 }; 311 312 static struct regulator_consumer_supply preg_supply[] = { 313 REGULATOR_SUPPLY("preg", "charger-manager"), 314 }; 315 316 static struct regulator_init_data preg_init_data = { 317 .num_consumer_supplies = ARRAY_SIZE(preg_supply), 318 .consumer_supplies = &preg_supply[0], 319 }; 320 321 static struct mfd_cell power_devs[] = { 322 {"88pm860x-battery", -1,}, 323 {"88pm860x-charger", -1,}, 324 {"88pm860x-preg", -1,}, 325 }; 326 327 static struct mfd_cell rtc_devs[] = { 328 {"88pm860x-rtc", -1,}, 329 }; 330 331 332 struct pm860x_irq_data { 333 int reg; 334 int mask_reg; 335 int enable; /* enable or not */ 336 int offs; /* bit offset in mask register */ 337 }; 338 339 static struct pm860x_irq_data pm860x_irqs[] = { 340 [PM8607_IRQ_ONKEY] = { 341 .reg = PM8607_INT_STATUS1, 342 .mask_reg = PM8607_INT_MASK_1, 343 .offs = 1 << 0, 344 }, 345 [PM8607_IRQ_EXTON] = { 346 .reg = PM8607_INT_STATUS1, 347 .mask_reg = PM8607_INT_MASK_1, 348 .offs = 1 << 1, 349 }, 350 [PM8607_IRQ_CHG] = { 351 .reg = PM8607_INT_STATUS1, 352 .mask_reg = PM8607_INT_MASK_1, 353 .offs = 1 << 2, 354 }, 355 [PM8607_IRQ_BAT] = { 356 .reg = PM8607_INT_STATUS1, 357 .mask_reg = PM8607_INT_MASK_1, 358 .offs = 1 << 3, 359 }, 360 [PM8607_IRQ_RTC] = { 361 .reg = PM8607_INT_STATUS1, 362 .mask_reg = PM8607_INT_MASK_1, 363 .offs = 1 << 4, 364 }, 365 [PM8607_IRQ_CC] = { 366 .reg = PM8607_INT_STATUS1, 367 .mask_reg = PM8607_INT_MASK_1, 368 .offs = 1 << 5, 369 }, 370 [PM8607_IRQ_VBAT] = { 371 .reg = PM8607_INT_STATUS2, 372 .mask_reg = PM8607_INT_MASK_2, 373 .offs = 1 << 0, 374 }, 375 [PM8607_IRQ_VCHG] = { 376 .reg = PM8607_INT_STATUS2, 377 .mask_reg = PM8607_INT_MASK_2, 378 .offs = 1 << 1, 379 }, 380 [PM8607_IRQ_VSYS] = { 381 .reg = PM8607_INT_STATUS2, 382 .mask_reg = PM8607_INT_MASK_2, 383 .offs = 1 << 2, 384 }, 385 [PM8607_IRQ_TINT] = { 386 .reg = PM8607_INT_STATUS2, 387 .mask_reg = PM8607_INT_MASK_2, 388 .offs = 1 << 3, 389 }, 390 [PM8607_IRQ_GPADC0] = { 391 .reg = PM8607_INT_STATUS2, 392 .mask_reg = PM8607_INT_MASK_2, 393 .offs = 1 << 4, 394 }, 395 [PM8607_IRQ_GPADC1] = { 396 .reg = PM8607_INT_STATUS2, 397 .mask_reg = PM8607_INT_MASK_2, 398 .offs = 1 << 5, 399 }, 400 [PM8607_IRQ_GPADC2] = { 401 .reg = PM8607_INT_STATUS2, 402 .mask_reg = PM8607_INT_MASK_2, 403 .offs = 1 << 6, 404 }, 405 [PM8607_IRQ_GPADC3] = { 406 .reg = PM8607_INT_STATUS2, 407 .mask_reg = PM8607_INT_MASK_2, 408 .offs = 1 << 7, 409 }, 410 [PM8607_IRQ_AUDIO_SHORT] = { 411 .reg = PM8607_INT_STATUS3, 412 .mask_reg = PM8607_INT_MASK_3, 413 .offs = 1 << 0, 414 }, 415 [PM8607_IRQ_PEN] = { 416 .reg = PM8607_INT_STATUS3, 417 .mask_reg = PM8607_INT_MASK_3, 418 .offs = 1 << 1, 419 }, 420 [PM8607_IRQ_HEADSET] = { 421 .reg = PM8607_INT_STATUS3, 422 .mask_reg = PM8607_INT_MASK_3, 423 .offs = 1 << 2, 424 }, 425 [PM8607_IRQ_HOOK] = { 426 .reg = PM8607_INT_STATUS3, 427 .mask_reg = PM8607_INT_MASK_3, 428 .offs = 1 << 3, 429 }, 430 [PM8607_IRQ_MICIN] = { 431 .reg = PM8607_INT_STATUS3, 432 .mask_reg = PM8607_INT_MASK_3, 433 .offs = 1 << 4, 434 }, 435 [PM8607_IRQ_CHG_FAIL] = { 436 .reg = PM8607_INT_STATUS3, 437 .mask_reg = PM8607_INT_MASK_3, 438 .offs = 1 << 5, 439 }, 440 [PM8607_IRQ_CHG_DONE] = { 441 .reg = PM8607_INT_STATUS3, 442 .mask_reg = PM8607_INT_MASK_3, 443 .offs = 1 << 6, 444 }, 445 [PM8607_IRQ_CHG_FAULT] = { 446 .reg = PM8607_INT_STATUS3, 447 .mask_reg = PM8607_INT_MASK_3, 448 .offs = 1 << 7, 449 }, 450 }; 451 452 static irqreturn_t pm860x_irq(int irq, void *data) 453 { 454 struct pm860x_chip *chip = data; 455 struct pm860x_irq_data *irq_data; 456 struct i2c_client *i2c; 457 int read_reg = -1, value = 0; 458 int i; 459 460 i2c = (chip->id == CHIP_PM8607) ? chip->client : chip->companion; 461 for (i = 0; i < ARRAY_SIZE(pm860x_irqs); i++) { 462 irq_data = &pm860x_irqs[i]; 463 if (read_reg != irq_data->reg) { 464 read_reg = irq_data->reg; 465 value = pm860x_reg_read(i2c, irq_data->reg); 466 } 467 if (value & irq_data->enable) 468 handle_nested_irq(chip->irq_base + i); 469 } 470 return IRQ_HANDLED; 471 } 472 473 static void pm860x_irq_lock(struct irq_data *data) 474 { 475 struct pm860x_chip *chip = irq_data_get_irq_chip_data(data); 476 477 mutex_lock(&chip->irq_lock); 478 } 479 480 static void pm860x_irq_sync_unlock(struct irq_data *data) 481 { 482 struct pm860x_chip *chip = irq_data_get_irq_chip_data(data); 483 struct pm860x_irq_data *irq_data; 484 struct i2c_client *i2c; 485 static unsigned char cached[3] = {0x0, 0x0, 0x0}; 486 unsigned char mask[3]; 487 int i; 488 489 i2c = (chip->id == CHIP_PM8607) ? chip->client : chip->companion; 490 /* Load cached value. In initial, all IRQs are masked */ 491 for (i = 0; i < 3; i++) 492 mask[i] = cached[i]; 493 for (i = 0; i < ARRAY_SIZE(pm860x_irqs); i++) { 494 irq_data = &pm860x_irqs[i]; 495 switch (irq_data->mask_reg) { 496 case PM8607_INT_MASK_1: 497 mask[0] &= ~irq_data->offs; 498 mask[0] |= irq_data->enable; 499 break; 500 case PM8607_INT_MASK_2: 501 mask[1] &= ~irq_data->offs; 502 mask[1] |= irq_data->enable; 503 break; 504 case PM8607_INT_MASK_3: 505 mask[2] &= ~irq_data->offs; 506 mask[2] |= irq_data->enable; 507 break; 508 default: 509 dev_err(chip->dev, "wrong IRQ\n"); 510 break; 511 } 512 } 513 /* update mask into registers */ 514 for (i = 0; i < 3; i++) { 515 if (mask[i] != cached[i]) { 516 cached[i] = mask[i]; 517 pm860x_reg_write(i2c, PM8607_INT_MASK_1 + i, mask[i]); 518 } 519 } 520 521 mutex_unlock(&chip->irq_lock); 522 } 523 524 static void pm860x_irq_enable(struct irq_data *data) 525 { 526 pm860x_irqs[data->hwirq].enable = pm860x_irqs[data->hwirq].offs; 527 } 528 529 static void pm860x_irq_disable(struct irq_data *data) 530 { 531 pm860x_irqs[data->hwirq].enable = 0; 532 } 533 534 static struct irq_chip pm860x_irq_chip = { 535 .name = "88pm860x", 536 .irq_bus_lock = pm860x_irq_lock, 537 .irq_bus_sync_unlock = pm860x_irq_sync_unlock, 538 .irq_enable = pm860x_irq_enable, 539 .irq_disable = pm860x_irq_disable, 540 }; 541 542 static int pm860x_irq_domain_map(struct irq_domain *d, unsigned int virq, 543 irq_hw_number_t hw) 544 { 545 irq_set_chip_data(virq, d->host_data); 546 irq_set_chip_and_handler(virq, &pm860x_irq_chip, handle_edge_irq); 547 irq_set_nested_thread(virq, 1); 548 #ifdef CONFIG_ARM 549 set_irq_flags(virq, IRQF_VALID); 550 #else 551 irq_set_noprobe(virq); 552 #endif 553 return 0; 554 } 555 556 static struct irq_domain_ops pm860x_irq_domain_ops = { 557 .map = pm860x_irq_domain_map, 558 .xlate = irq_domain_xlate_onetwocell, 559 }; 560 561 static int __devinit device_irq_init(struct pm860x_chip *chip, 562 struct pm860x_platform_data *pdata) 563 { 564 struct i2c_client *i2c = (chip->id == CHIP_PM8607) ? chip->client \ 565 : chip->companion; 566 unsigned char status_buf[INT_STATUS_NUM]; 567 unsigned long flags = IRQF_TRIGGER_FALLING | IRQF_ONESHOT; 568 int data, mask, ret = -EINVAL; 569 int nr_irqs, irq_base = -1; 570 struct device_node *node = i2c->dev.of_node; 571 572 mask = PM8607_B0_MISC1_INV_INT | PM8607_B0_MISC1_INT_CLEAR 573 | PM8607_B0_MISC1_INT_MASK; 574 data = 0; 575 chip->irq_mode = 0; 576 if (pdata && pdata->irq_mode) { 577 /* 578 * irq_mode defines the way of clearing interrupt. If it's 1, 579 * clear IRQ by write. Otherwise, clear it by read. 580 * This control bit is valid from 88PM8607 B0 steping. 581 */ 582 data |= PM8607_B0_MISC1_INT_CLEAR; 583 chip->irq_mode = 1; 584 } 585 ret = pm860x_set_bits(i2c, PM8607_B0_MISC1, mask, data); 586 if (ret < 0) 587 goto out; 588 589 /* mask all IRQs */ 590 memset(status_buf, 0, INT_STATUS_NUM); 591 ret = pm860x_bulk_write(i2c, PM8607_INT_MASK_1, 592 INT_STATUS_NUM, status_buf); 593 if (ret < 0) 594 goto out; 595 596 if (chip->irq_mode) { 597 /* clear interrupt status by write */ 598 memset(status_buf, 0xFF, INT_STATUS_NUM); 599 ret = pm860x_bulk_write(i2c, PM8607_INT_STATUS1, 600 INT_STATUS_NUM, status_buf); 601 } else { 602 /* clear interrupt status by read */ 603 ret = pm860x_bulk_read(i2c, PM8607_INT_STATUS1, 604 INT_STATUS_NUM, status_buf); 605 } 606 if (ret < 0) 607 goto out; 608 609 mutex_init(&chip->irq_lock); 610 611 if (pdata && pdata->irq_base) 612 irq_base = pdata->irq_base; 613 nr_irqs = ARRAY_SIZE(pm860x_irqs); 614 chip->irq_base = irq_alloc_descs(irq_base, 0, nr_irqs, 0); 615 if (chip->irq_base < 0) { 616 dev_err(&i2c->dev, "Failed to allocate interrupts, ret:%d\n", 617 chip->irq_base); 618 ret = -EBUSY; 619 goto out; 620 } 621 irq_domain_add_legacy(node, nr_irqs, chip->irq_base, 0, 622 &pm860x_irq_domain_ops, chip); 623 chip->core_irq = i2c->irq; 624 if (!chip->core_irq) 625 goto out; 626 627 ret = request_threaded_irq(chip->core_irq, NULL, pm860x_irq, flags | IRQF_ONESHOT, 628 "88pm860x", chip); 629 if (ret) { 630 dev_err(chip->dev, "Failed to request IRQ: %d\n", ret); 631 chip->core_irq = 0; 632 } 633 634 return 0; 635 out: 636 chip->core_irq = 0; 637 return ret; 638 } 639 640 static void device_irq_exit(struct pm860x_chip *chip) 641 { 642 if (chip->core_irq) 643 free_irq(chip->core_irq, chip); 644 } 645 646 int pm8606_osc_enable(struct pm860x_chip *chip, unsigned short client) 647 { 648 int ret = -EIO; 649 struct i2c_client *i2c = (chip->id == CHIP_PM8606) ? 650 chip->client : chip->companion; 651 652 dev_dbg(chip->dev, "%s(B): client=0x%x\n", __func__, client); 653 dev_dbg(chip->dev, "%s(B): vote=0x%x status=%d\n", 654 __func__, chip->osc_vote, 655 chip->osc_status); 656 657 mutex_lock(&chip->osc_lock); 658 /* Update voting status */ 659 chip->osc_vote |= client; 660 /* If reference group is off - turn on*/ 661 if (chip->osc_status != PM8606_REF_GP_OSC_ON) { 662 chip->osc_status = PM8606_REF_GP_OSC_UNKNOWN; 663 /* Enable Reference group Vsys */ 664 if (pm860x_set_bits(i2c, PM8606_VSYS, 665 PM8606_VSYS_EN, PM8606_VSYS_EN)) 666 goto out; 667 668 /*Enable Internal Oscillator */ 669 if (pm860x_set_bits(i2c, PM8606_MISC, 670 PM8606_MISC_OSC_EN, PM8606_MISC_OSC_EN)) 671 goto out; 672 /* Update status (only if writes succeed) */ 673 chip->osc_status = PM8606_REF_GP_OSC_ON; 674 } 675 mutex_unlock(&chip->osc_lock); 676 677 dev_dbg(chip->dev, "%s(A): vote=0x%x status=%d ret=%d\n", 678 __func__, chip->osc_vote, 679 chip->osc_status, ret); 680 return 0; 681 out: 682 mutex_unlock(&chip->osc_lock); 683 return ret; 684 } 685 EXPORT_SYMBOL(pm8606_osc_enable); 686 687 int pm8606_osc_disable(struct pm860x_chip *chip, unsigned short client) 688 { 689 int ret = -EIO; 690 struct i2c_client *i2c = (chip->id == CHIP_PM8606) ? 691 chip->client : chip->companion; 692 693 dev_dbg(chip->dev, "%s(B): client=0x%x\n", __func__, client); 694 dev_dbg(chip->dev, "%s(B): vote=0x%x status=%d\n", 695 __func__, chip->osc_vote, 696 chip->osc_status); 697 698 mutex_lock(&chip->osc_lock); 699 /*Update voting status */ 700 chip->osc_vote &= ~(client); 701 /* If reference group is off and this is the last client to release 702 * - turn off */ 703 if ((chip->osc_status != PM8606_REF_GP_OSC_OFF) && 704 (chip->osc_vote == REF_GP_NO_CLIENTS)) { 705 chip->osc_status = PM8606_REF_GP_OSC_UNKNOWN; 706 /* Disable Reference group Vsys */ 707 if (pm860x_set_bits(i2c, PM8606_VSYS, PM8606_VSYS_EN, 0)) 708 goto out; 709 /* Disable Internal Oscillator */ 710 if (pm860x_set_bits(i2c, PM8606_MISC, PM8606_MISC_OSC_EN, 0)) 711 goto out; 712 chip->osc_status = PM8606_REF_GP_OSC_OFF; 713 } 714 mutex_unlock(&chip->osc_lock); 715 716 dev_dbg(chip->dev, "%s(A): vote=0x%x status=%d ret=%d\n", 717 __func__, chip->osc_vote, 718 chip->osc_status, ret); 719 return 0; 720 out: 721 mutex_unlock(&chip->osc_lock); 722 return ret; 723 } 724 EXPORT_SYMBOL(pm8606_osc_disable); 725 726 static void __devinit device_osc_init(struct i2c_client *i2c) 727 { 728 struct pm860x_chip *chip = i2c_get_clientdata(i2c); 729 730 mutex_init(&chip->osc_lock); 731 /* init portofino reference group voting and status */ 732 /* Disable Reference group Vsys */ 733 pm860x_set_bits(i2c, PM8606_VSYS, PM8606_VSYS_EN, 0); 734 /* Disable Internal Oscillator */ 735 pm860x_set_bits(i2c, PM8606_MISC, PM8606_MISC_OSC_EN, 0); 736 737 chip->osc_vote = REF_GP_NO_CLIENTS; 738 chip->osc_status = PM8606_REF_GP_OSC_OFF; 739 } 740 741 static void __devinit device_bk_init(struct pm860x_chip *chip, 742 struct pm860x_platform_data *pdata) 743 { 744 int ret, i; 745 746 if (pdata && pdata->backlight) { 747 if (pdata->num_backlights > ARRAY_SIZE(bk_devs)) 748 pdata->num_backlights = ARRAY_SIZE(bk_devs); 749 for (i = 0; i < pdata->num_backlights; i++) { 750 bk_devs[i].platform_data = &pdata->backlight[i]; 751 bk_devs[i].pdata_size = 752 sizeof(struct pm860x_backlight_pdata); 753 } 754 } 755 ret = mfd_add_devices(chip->dev, 0, bk_devs, 756 ARRAY_SIZE(bk_devs), NULL, 0, NULL); 757 if (ret < 0) 758 dev_err(chip->dev, "Failed to add backlight subdev\n"); 759 } 760 761 static void __devinit device_led_init(struct pm860x_chip *chip, 762 struct pm860x_platform_data *pdata) 763 { 764 int ret, i; 765 766 if (pdata && pdata->led) { 767 if (pdata->num_leds > ARRAY_SIZE(led_devs)) 768 pdata->num_leds = ARRAY_SIZE(led_devs); 769 for (i = 0; i < pdata->num_leds; i++) { 770 led_devs[i].platform_data = &pdata->led[i]; 771 led_devs[i].pdata_size = 772 sizeof(struct pm860x_led_pdata); 773 } 774 } 775 ret = mfd_add_devices(chip->dev, 0, led_devs, 776 ARRAY_SIZE(led_devs), NULL, 0, NULL); 777 if (ret < 0) { 778 dev_err(chip->dev, "Failed to add led subdev\n"); 779 return; 780 } 781 } 782 783 static void __devinit device_regulator_init(struct pm860x_chip *chip, 784 struct pm860x_platform_data *pdata) 785 { 786 int ret; 787 788 if (pdata == NULL) 789 return; 790 if (pdata->buck1) { 791 reg_devs[0].platform_data = pdata->buck1; 792 reg_devs[0].pdata_size = sizeof(struct regulator_init_data); 793 } 794 if (pdata->buck2) { 795 reg_devs[1].platform_data = pdata->buck2; 796 reg_devs[1].pdata_size = sizeof(struct regulator_init_data); 797 } 798 if (pdata->buck3) { 799 reg_devs[2].platform_data = pdata->buck3; 800 reg_devs[2].pdata_size = sizeof(struct regulator_init_data); 801 } 802 if (pdata->ldo1) { 803 reg_devs[3].platform_data = pdata->ldo1; 804 reg_devs[3].pdata_size = sizeof(struct regulator_init_data); 805 } 806 if (pdata->ldo2) { 807 reg_devs[4].platform_data = pdata->ldo2; 808 reg_devs[4].pdata_size = sizeof(struct regulator_init_data); 809 } 810 if (pdata->ldo3) { 811 reg_devs[5].platform_data = pdata->ldo3; 812 reg_devs[5].pdata_size = sizeof(struct regulator_init_data); 813 } 814 if (pdata->ldo4) { 815 reg_devs[6].platform_data = pdata->ldo4; 816 reg_devs[6].pdata_size = sizeof(struct regulator_init_data); 817 } 818 if (pdata->ldo5) { 819 reg_devs[7].platform_data = pdata->ldo5; 820 reg_devs[7].pdata_size = sizeof(struct regulator_init_data); 821 } 822 if (pdata->ldo6) { 823 reg_devs[8].platform_data = pdata->ldo6; 824 reg_devs[8].pdata_size = sizeof(struct regulator_init_data); 825 } 826 if (pdata->ldo7) { 827 reg_devs[9].platform_data = pdata->ldo7; 828 reg_devs[9].pdata_size = sizeof(struct regulator_init_data); 829 } 830 if (pdata->ldo8) { 831 reg_devs[10].platform_data = pdata->ldo8; 832 reg_devs[10].pdata_size = sizeof(struct regulator_init_data); 833 } 834 if (pdata->ldo9) { 835 reg_devs[11].platform_data = pdata->ldo9; 836 reg_devs[11].pdata_size = sizeof(struct regulator_init_data); 837 } 838 if (pdata->ldo10) { 839 reg_devs[12].platform_data = pdata->ldo10; 840 reg_devs[12].pdata_size = sizeof(struct regulator_init_data); 841 } 842 if (pdata->ldo12) { 843 reg_devs[13].platform_data = pdata->ldo12; 844 reg_devs[13].pdata_size = sizeof(struct regulator_init_data); 845 } 846 if (pdata->ldo_vibrator) { 847 reg_devs[14].platform_data = pdata->ldo_vibrator; 848 reg_devs[14].pdata_size = sizeof(struct regulator_init_data); 849 } 850 if (pdata->ldo14) { 851 reg_devs[15].platform_data = pdata->ldo14; 852 reg_devs[15].pdata_size = sizeof(struct regulator_init_data); 853 } 854 ret = mfd_add_devices(chip->dev, 0, reg_devs, 855 ARRAY_SIZE(reg_devs), NULL, 0, NULL); 856 if (ret < 0) { 857 dev_err(chip->dev, "Failed to add regulator subdev\n"); 858 return; 859 } 860 } 861 862 static void __devinit device_rtc_init(struct pm860x_chip *chip, 863 struct pm860x_platform_data *pdata) 864 { 865 int ret; 866 867 if ((pdata == NULL)) 868 return; 869 870 rtc_devs[0].platform_data = pdata->rtc; 871 rtc_devs[0].pdata_size = sizeof(struct pm860x_rtc_pdata); 872 rtc_devs[0].num_resources = ARRAY_SIZE(rtc_resources); 873 rtc_devs[0].resources = &rtc_resources[0]; 874 ret = mfd_add_devices(chip->dev, 0, &rtc_devs[0], 875 ARRAY_SIZE(rtc_devs), &rtc_resources[0], 876 chip->irq_base, NULL); 877 if (ret < 0) 878 dev_err(chip->dev, "Failed to add rtc subdev\n"); 879 } 880 881 static void __devinit device_touch_init(struct pm860x_chip *chip, 882 struct pm860x_platform_data *pdata) 883 { 884 int ret; 885 886 if (pdata == NULL) 887 return; 888 889 touch_devs[0].platform_data = pdata->touch; 890 touch_devs[0].pdata_size = sizeof(struct pm860x_touch_pdata); 891 touch_devs[0].num_resources = ARRAY_SIZE(touch_resources); 892 touch_devs[0].resources = &touch_resources[0]; 893 ret = mfd_add_devices(chip->dev, 0, &touch_devs[0], 894 ARRAY_SIZE(touch_devs), &touch_resources[0], 895 chip->irq_base, NULL); 896 if (ret < 0) 897 dev_err(chip->dev, "Failed to add touch subdev\n"); 898 } 899 900 static void __devinit device_power_init(struct pm860x_chip *chip, 901 struct pm860x_platform_data *pdata) 902 { 903 int ret; 904 905 if (pdata == NULL) 906 return; 907 908 power_devs[0].platform_data = pdata->power; 909 power_devs[0].pdata_size = sizeof(struct pm860x_power_pdata); 910 power_devs[0].num_resources = ARRAY_SIZE(battery_resources); 911 power_devs[0].resources = &battery_resources[0], 912 ret = mfd_add_devices(chip->dev, 0, &power_devs[0], 1, 913 &battery_resources[0], chip->irq_base, NULL); 914 if (ret < 0) 915 dev_err(chip->dev, "Failed to add battery subdev\n"); 916 917 power_devs[1].platform_data = pdata->power; 918 power_devs[1].pdata_size = sizeof(struct pm860x_power_pdata); 919 power_devs[1].num_resources = ARRAY_SIZE(charger_resources); 920 power_devs[1].resources = &charger_resources[0], 921 ret = mfd_add_devices(chip->dev, 0, &power_devs[1], 1, 922 &charger_resources[0], chip->irq_base, NULL); 923 if (ret < 0) 924 dev_err(chip->dev, "Failed to add charger subdev\n"); 925 926 power_devs[2].platform_data = &preg_init_data; 927 power_devs[2].pdata_size = sizeof(struct regulator_init_data); 928 ret = mfd_add_devices(chip->dev, 0, &power_devs[2], 1, 929 NULL, chip->irq_base, NULL); 930 if (ret < 0) 931 dev_err(chip->dev, "Failed to add preg subdev\n"); 932 } 933 934 static void __devinit device_onkey_init(struct pm860x_chip *chip, 935 struct pm860x_platform_data *pdata) 936 { 937 int ret; 938 939 onkey_devs[0].num_resources = ARRAY_SIZE(onkey_resources); 940 onkey_devs[0].resources = &onkey_resources[0], 941 ret = mfd_add_devices(chip->dev, 0, &onkey_devs[0], 942 ARRAY_SIZE(onkey_devs), &onkey_resources[0], 943 chip->irq_base, NULL); 944 if (ret < 0) 945 dev_err(chip->dev, "Failed to add onkey subdev\n"); 946 } 947 948 static void __devinit device_codec_init(struct pm860x_chip *chip, 949 struct pm860x_platform_data *pdata) 950 { 951 int ret; 952 953 codec_devs[0].num_resources = ARRAY_SIZE(codec_resources); 954 codec_devs[0].resources = &codec_resources[0], 955 ret = mfd_add_devices(chip->dev, 0, &codec_devs[0], 956 ARRAY_SIZE(codec_devs), &codec_resources[0], 0, 957 NULL); 958 if (ret < 0) 959 dev_err(chip->dev, "Failed to add codec subdev\n"); 960 } 961 962 static void __devinit device_8607_init(struct pm860x_chip *chip, 963 struct i2c_client *i2c, 964 struct pm860x_platform_data *pdata) 965 { 966 int data, ret; 967 968 ret = pm860x_reg_read(i2c, PM8607_CHIP_ID); 969 if (ret < 0) { 970 dev_err(chip->dev, "Failed to read CHIP ID: %d\n", ret); 971 goto out; 972 } 973 switch (ret & PM8607_VERSION_MASK) { 974 case 0x40: 975 case 0x50: 976 dev_info(chip->dev, "Marvell 88PM8607 (ID: %02x) detected\n", 977 ret); 978 break; 979 default: 980 dev_err(chip->dev, "Failed to detect Marvell 88PM8607. " 981 "Chip ID: %02x\n", ret); 982 goto out; 983 } 984 985 ret = pm860x_reg_read(i2c, PM8607_BUCK3); 986 if (ret < 0) { 987 dev_err(chip->dev, "Failed to read BUCK3 register: %d\n", ret); 988 goto out; 989 } 990 if (ret & PM8607_BUCK3_DOUBLE) 991 chip->buck3_double = 1; 992 993 ret = pm860x_reg_read(i2c, PM8607_B0_MISC1); 994 if (ret < 0) { 995 dev_err(chip->dev, "Failed to read MISC1 register: %d\n", ret); 996 goto out; 997 } 998 999 if (pdata && (pdata->i2c_port == PI2C_PORT)) 1000 data = PM8607_B0_MISC1_PI2C; 1001 else 1002 data = 0; 1003 ret = pm860x_set_bits(i2c, PM8607_B0_MISC1, PM8607_B0_MISC1_PI2C, data); 1004 if (ret < 0) { 1005 dev_err(chip->dev, "Failed to access MISC1:%d\n", ret); 1006 goto out; 1007 } 1008 1009 ret = device_irq_init(chip, pdata); 1010 if (ret < 0) 1011 goto out; 1012 1013 device_regulator_init(chip, pdata); 1014 device_rtc_init(chip, pdata); 1015 device_onkey_init(chip, pdata); 1016 device_touch_init(chip, pdata); 1017 device_power_init(chip, pdata); 1018 device_codec_init(chip, pdata); 1019 out: 1020 return; 1021 } 1022 1023 static void __devinit device_8606_init(struct pm860x_chip *chip, 1024 struct i2c_client *i2c, 1025 struct pm860x_platform_data *pdata) 1026 { 1027 device_osc_init(i2c); 1028 device_bk_init(chip, pdata); 1029 device_led_init(chip, pdata); 1030 } 1031 1032 static int __devinit pm860x_device_init(struct pm860x_chip *chip, 1033 struct pm860x_platform_data *pdata) 1034 { 1035 chip->core_irq = 0; 1036 1037 switch (chip->id) { 1038 case CHIP_PM8606: 1039 device_8606_init(chip, chip->client, pdata); 1040 break; 1041 case CHIP_PM8607: 1042 device_8607_init(chip, chip->client, pdata); 1043 break; 1044 } 1045 1046 if (chip->companion) { 1047 switch (chip->id) { 1048 case CHIP_PM8607: 1049 device_8606_init(chip, chip->companion, pdata); 1050 break; 1051 case CHIP_PM8606: 1052 device_8607_init(chip, chip->companion, pdata); 1053 break; 1054 } 1055 } 1056 1057 return 0; 1058 } 1059 1060 static void __devexit pm860x_device_exit(struct pm860x_chip *chip) 1061 { 1062 device_irq_exit(chip); 1063 mfd_remove_devices(chip->dev); 1064 } 1065 1066 static int verify_addr(struct i2c_client *i2c) 1067 { 1068 unsigned short addr_8607[] = {0x30, 0x34}; 1069 unsigned short addr_8606[] = {0x10, 0x11}; 1070 int size, i; 1071 1072 if (i2c == NULL) 1073 return 0; 1074 size = ARRAY_SIZE(addr_8606); 1075 for (i = 0; i < size; i++) { 1076 if (i2c->addr == *(addr_8606 + i)) 1077 return CHIP_PM8606; 1078 } 1079 size = ARRAY_SIZE(addr_8607); 1080 for (i = 0; i < size; i++) { 1081 if (i2c->addr == *(addr_8607 + i)) 1082 return CHIP_PM8607; 1083 } 1084 return 0; 1085 } 1086 1087 static struct regmap_config pm860x_regmap_config = { 1088 .reg_bits = 8, 1089 .val_bits = 8, 1090 }; 1091 1092 static int __devinit pm860x_dt_init(struct device_node *np, 1093 struct device *dev, 1094 struct pm860x_platform_data *pdata) 1095 { 1096 int ret; 1097 1098 if (of_get_property(np, "marvell,88pm860x-irq-read-clr", NULL)) 1099 pdata->irq_mode = 1; 1100 ret = of_property_read_u32(np, "marvell,88pm860x-slave-addr", 1101 &pdata->companion_addr); 1102 if (ret) { 1103 dev_err(dev, "Not found \"marvell,88pm860x-slave-addr\" " 1104 "property\n"); 1105 pdata->companion_addr = 0; 1106 } 1107 return 0; 1108 } 1109 1110 static int __devinit pm860x_probe(struct i2c_client *client, 1111 const struct i2c_device_id *id) 1112 { 1113 struct pm860x_platform_data *pdata = client->dev.platform_data; 1114 struct device_node *node = client->dev.of_node; 1115 struct pm860x_chip *chip; 1116 int ret; 1117 1118 if (node && !pdata) { 1119 /* parse DT to get platform data */ 1120 pdata = devm_kzalloc(&client->dev, 1121 sizeof(struct pm860x_platform_data), 1122 GFP_KERNEL); 1123 if (!pdata) 1124 return -ENOMEM; 1125 ret = pm860x_dt_init(node, &client->dev, pdata); 1126 if (ret) 1127 goto err; 1128 } else if (!pdata) { 1129 pr_info("No platform data in %s!\n", __func__); 1130 return -EINVAL; 1131 } 1132 1133 chip = kzalloc(sizeof(struct pm860x_chip), GFP_KERNEL); 1134 if (chip == NULL) { 1135 ret = -ENOMEM; 1136 goto err; 1137 } 1138 1139 chip->id = verify_addr(client); 1140 chip->regmap = regmap_init_i2c(client, &pm860x_regmap_config); 1141 if (IS_ERR(chip->regmap)) { 1142 ret = PTR_ERR(chip->regmap); 1143 dev_err(&client->dev, "Failed to allocate register map: %d\n", 1144 ret); 1145 kfree(chip); 1146 return ret; 1147 } 1148 chip->client = client; 1149 i2c_set_clientdata(client, chip); 1150 chip->dev = &client->dev; 1151 dev_set_drvdata(chip->dev, chip); 1152 1153 /* 1154 * Both client and companion client shares same platform driver. 1155 * Driver distinguishes them by pdata->companion_addr. 1156 * pdata->companion_addr is only assigned if companion chip exists. 1157 * At the same time, the companion_addr shouldn't equal to client 1158 * address. 1159 */ 1160 if (pdata->companion_addr && (pdata->companion_addr != client->addr)) { 1161 chip->companion_addr = pdata->companion_addr; 1162 chip->companion = i2c_new_dummy(chip->client->adapter, 1163 chip->companion_addr); 1164 chip->regmap_companion = regmap_init_i2c(chip->companion, 1165 &pm860x_regmap_config); 1166 if (IS_ERR(chip->regmap_companion)) { 1167 ret = PTR_ERR(chip->regmap_companion); 1168 dev_err(&chip->companion->dev, 1169 "Failed to allocate register map: %d\n", ret); 1170 return ret; 1171 } 1172 i2c_set_clientdata(chip->companion, chip); 1173 } 1174 1175 pm860x_device_init(chip, pdata); 1176 return 0; 1177 err: 1178 if (node) 1179 devm_kfree(&client->dev, pdata); 1180 return ret; 1181 } 1182 1183 static int __devexit pm860x_remove(struct i2c_client *client) 1184 { 1185 struct pm860x_chip *chip = i2c_get_clientdata(client); 1186 1187 pm860x_device_exit(chip); 1188 if (chip->companion) { 1189 regmap_exit(chip->regmap_companion); 1190 i2c_unregister_device(chip->companion); 1191 } 1192 regmap_exit(chip->regmap); 1193 kfree(chip); 1194 return 0; 1195 } 1196 1197 #ifdef CONFIG_PM_SLEEP 1198 static int pm860x_suspend(struct device *dev) 1199 { 1200 struct i2c_client *client = container_of(dev, struct i2c_client, dev); 1201 struct pm860x_chip *chip = i2c_get_clientdata(client); 1202 1203 if (device_may_wakeup(dev) && chip->wakeup_flag) 1204 enable_irq_wake(chip->core_irq); 1205 return 0; 1206 } 1207 1208 static int pm860x_resume(struct device *dev) 1209 { 1210 struct i2c_client *client = container_of(dev, struct i2c_client, dev); 1211 struct pm860x_chip *chip = i2c_get_clientdata(client); 1212 1213 if (device_may_wakeup(dev) && chip->wakeup_flag) 1214 disable_irq_wake(chip->core_irq); 1215 return 0; 1216 } 1217 #endif 1218 1219 static SIMPLE_DEV_PM_OPS(pm860x_pm_ops, pm860x_suspend, pm860x_resume); 1220 1221 static const struct i2c_device_id pm860x_id_table[] = { 1222 { "88PM860x", 0 }, 1223 {} 1224 }; 1225 MODULE_DEVICE_TABLE(i2c, pm860x_id_table); 1226 1227 static const struct of_device_id pm860x_dt_ids[] = { 1228 { .compatible = "marvell,88pm860x", }, 1229 {}, 1230 }; 1231 MODULE_DEVICE_TABLE(of, pm860x_dt_ids); 1232 1233 static struct i2c_driver pm860x_driver = { 1234 .driver = { 1235 .name = "88PM860x", 1236 .owner = THIS_MODULE, 1237 .pm = &pm860x_pm_ops, 1238 .of_match_table = of_match_ptr(pm860x_dt_ids), 1239 }, 1240 .probe = pm860x_probe, 1241 .remove = __devexit_p(pm860x_remove), 1242 .id_table = pm860x_id_table, 1243 }; 1244 1245 static int __init pm860x_i2c_init(void) 1246 { 1247 int ret; 1248 ret = i2c_add_driver(&pm860x_driver); 1249 if (ret != 0) 1250 pr_err("Failed to register 88PM860x I2C driver: %d\n", ret); 1251 return ret; 1252 } 1253 subsys_initcall(pm860x_i2c_init); 1254 1255 static void __exit pm860x_i2c_exit(void) 1256 { 1257 i2c_del_driver(&pm860x_driver); 1258 } 1259 module_exit(pm860x_i2c_exit); 1260 1261 MODULE_DESCRIPTION("PMIC Driver for Marvell 88PM860x"); 1262 MODULE_AUTHOR("Haojian Zhuang <haojian.zhuang@marvell.com>"); 1263 MODULE_LICENSE("GPL"); 1264