1 /* 2 * Base driver for Marvell 88PM8607 3 * 4 * Copyright (C) 2009 Marvell International Ltd. 5 * 6 * Author: Haojian Zhuang <haojian.zhuang@marvell.com> 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 version 2 as 10 * published by the Free Software Foundation. 11 */ 12 13 #include <linux/kernel.h> 14 #include <linux/module.h> 15 #include <linux/err.h> 16 #include <linux/i2c.h> 17 #include <linux/irq.h> 18 #include <linux/interrupt.h> 19 #include <linux/irqdomain.h> 20 #include <linux/of.h> 21 #include <linux/of_platform.h> 22 #include <linux/platform_device.h> 23 #include <linux/regmap.h> 24 #include <linux/slab.h> 25 #include <linux/mfd/core.h> 26 #include <linux/mfd/88pm860x.h> 27 #include <linux/regulator/machine.h> 28 #include <linux/power/charger-manager.h> 29 30 #define INT_STATUS_NUM 3 31 32 static struct resource bk0_resources[] = { 33 {2, 2, "duty cycle", IORESOURCE_REG, }, 34 {3, 3, "always on", IORESOURCE_REG, }, 35 {3, 3, "current", IORESOURCE_REG, }, 36 }; 37 static struct resource bk1_resources[] = { 38 {4, 4, "duty cycle", IORESOURCE_REG, }, 39 {5, 5, "always on", IORESOURCE_REG, }, 40 {5, 5, "current", IORESOURCE_REG, }, 41 }; 42 static struct resource bk2_resources[] = { 43 {6, 6, "duty cycle", IORESOURCE_REG, }, 44 {7, 7, "always on", IORESOURCE_REG, }, 45 {5, 5, "current", IORESOURCE_REG, }, 46 }; 47 48 static struct resource led0_resources[] = { 49 /* RGB1 Red LED */ 50 {0xd, 0xd, "control", IORESOURCE_REG, }, 51 {0xc, 0xc, "blink", IORESOURCE_REG, }, 52 }; 53 static struct resource led1_resources[] = { 54 /* RGB1 Green LED */ 55 {0xe, 0xe, "control", IORESOURCE_REG, }, 56 {0xc, 0xc, "blink", IORESOURCE_REG, }, 57 }; 58 static struct resource led2_resources[] = { 59 /* RGB1 Blue LED */ 60 {0xf, 0xf, "control", IORESOURCE_REG, }, 61 {0xc, 0xc, "blink", IORESOURCE_REG, }, 62 }; 63 static struct resource led3_resources[] = { 64 /* RGB2 Red LED */ 65 {0x9, 0x9, "control", IORESOURCE_REG, }, 66 {0x8, 0x8, "blink", IORESOURCE_REG, }, 67 }; 68 static struct resource led4_resources[] = { 69 /* RGB2 Green LED */ 70 {0xa, 0xa, "control", IORESOURCE_REG, }, 71 {0x8, 0x8, "blink", IORESOURCE_REG, }, 72 }; 73 static struct resource led5_resources[] = { 74 /* RGB2 Blue LED */ 75 {0xb, 0xb, "control", IORESOURCE_REG, }, 76 {0x8, 0x8, "blink", IORESOURCE_REG, }, 77 }; 78 79 static struct resource buck1_resources[] = { 80 {0x24, 0x24, "buck set", IORESOURCE_REG, }, 81 }; 82 static struct resource buck2_resources[] = { 83 {0x25, 0x25, "buck set", IORESOURCE_REG, }, 84 }; 85 static struct resource buck3_resources[] = { 86 {0x26, 0x26, "buck set", IORESOURCE_REG, }, 87 }; 88 static struct resource ldo1_resources[] = { 89 {0x10, 0x10, "ldo set", IORESOURCE_REG, }, 90 }; 91 static struct resource ldo2_resources[] = { 92 {0x11, 0x11, "ldo set", IORESOURCE_REG, }, 93 }; 94 static struct resource ldo3_resources[] = { 95 {0x12, 0x12, "ldo set", IORESOURCE_REG, }, 96 }; 97 static struct resource ldo4_resources[] = { 98 {0x13, 0x13, "ldo set", IORESOURCE_REG, }, 99 }; 100 static struct resource ldo5_resources[] = { 101 {0x14, 0x14, "ldo set", IORESOURCE_REG, }, 102 }; 103 static struct resource ldo6_resources[] = { 104 {0x15, 0x15, "ldo set", IORESOURCE_REG, }, 105 }; 106 static struct resource ldo7_resources[] = { 107 {0x16, 0x16, "ldo set", IORESOURCE_REG, }, 108 }; 109 static struct resource ldo8_resources[] = { 110 {0x17, 0x17, "ldo set", IORESOURCE_REG, }, 111 }; 112 static struct resource ldo9_resources[] = { 113 {0x18, 0x18, "ldo set", IORESOURCE_REG, }, 114 }; 115 static struct resource ldo10_resources[] = { 116 {0x19, 0x19, "ldo set", IORESOURCE_REG, }, 117 }; 118 static struct resource ldo12_resources[] = { 119 {0x1a, 0x1a, "ldo set", IORESOURCE_REG, }, 120 }; 121 static struct resource ldo_vibrator_resources[] = { 122 {0x28, 0x28, "ldo set", IORESOURCE_REG, }, 123 }; 124 static struct resource ldo14_resources[] = { 125 {0x1b, 0x1b, "ldo set", IORESOURCE_REG, }, 126 }; 127 128 static struct resource touch_resources[] = { 129 {PM8607_IRQ_PEN, PM8607_IRQ_PEN, "touch", IORESOURCE_IRQ,}, 130 }; 131 132 static struct resource onkey_resources[] = { 133 {PM8607_IRQ_ONKEY, PM8607_IRQ_ONKEY, "onkey", IORESOURCE_IRQ,}, 134 }; 135 136 static struct resource codec_resources[] = { 137 /* Headset microphone insertion or removal */ 138 {PM8607_IRQ_MICIN, PM8607_IRQ_MICIN, "micin", IORESOURCE_IRQ,}, 139 /* Hook-switch press or release */ 140 {PM8607_IRQ_HOOK, PM8607_IRQ_HOOK, "hook", IORESOURCE_IRQ,}, 141 /* Headset insertion or removal */ 142 {PM8607_IRQ_HEADSET, PM8607_IRQ_HEADSET, "headset", IORESOURCE_IRQ,}, 143 /* Audio short */ 144 {PM8607_IRQ_AUDIO_SHORT, PM8607_IRQ_AUDIO_SHORT, "audio-short", 145 IORESOURCE_IRQ,}, 146 }; 147 148 static struct resource battery_resources[] = { 149 {PM8607_IRQ_CC, PM8607_IRQ_CC, "columb counter", IORESOURCE_IRQ,}, 150 {PM8607_IRQ_BAT, PM8607_IRQ_BAT, "battery", IORESOURCE_IRQ,}, 151 }; 152 153 static struct resource charger_resources[] = { 154 {PM8607_IRQ_CHG, PM8607_IRQ_CHG, "charger detect", IORESOURCE_IRQ,}, 155 {PM8607_IRQ_CHG_DONE, PM8607_IRQ_CHG_DONE, "charging done", 156 IORESOURCE_IRQ,}, 157 {PM8607_IRQ_CHG_FAIL, PM8607_IRQ_CHG_FAIL, "charging timeout", 158 IORESOURCE_IRQ,}, 159 {PM8607_IRQ_CHG_FAULT, PM8607_IRQ_CHG_FAULT, "charging fault", 160 IORESOURCE_IRQ,}, 161 {PM8607_IRQ_GPADC1, PM8607_IRQ_GPADC1, "battery temperature", 162 IORESOURCE_IRQ,}, 163 {PM8607_IRQ_VBAT, PM8607_IRQ_VBAT, "battery voltage", IORESOURCE_IRQ,}, 164 {PM8607_IRQ_VCHG, PM8607_IRQ_VCHG, "vchg voltage", IORESOURCE_IRQ,}, 165 }; 166 167 static struct resource rtc_resources[] = { 168 {PM8607_IRQ_RTC, PM8607_IRQ_RTC, "rtc", IORESOURCE_IRQ,}, 169 }; 170 171 static struct mfd_cell bk_devs[] = { 172 { 173 .name = "88pm860x-backlight", 174 .id = 0, 175 .num_resources = ARRAY_SIZE(bk0_resources), 176 .resources = bk0_resources, 177 }, { 178 .name = "88pm860x-backlight", 179 .id = 1, 180 .num_resources = ARRAY_SIZE(bk1_resources), 181 .resources = bk1_resources, 182 }, { 183 .name = "88pm860x-backlight", 184 .id = 2, 185 .num_resources = ARRAY_SIZE(bk2_resources), 186 .resources = bk2_resources, 187 }, 188 }; 189 190 static struct mfd_cell led_devs[] = { 191 { 192 .name = "88pm860x-led", 193 .id = 0, 194 .num_resources = ARRAY_SIZE(led0_resources), 195 .resources = led0_resources, 196 }, { 197 .name = "88pm860x-led", 198 .id = 1, 199 .num_resources = ARRAY_SIZE(led1_resources), 200 .resources = led1_resources, 201 }, { 202 .name = "88pm860x-led", 203 .id = 2, 204 .num_resources = ARRAY_SIZE(led2_resources), 205 .resources = led2_resources, 206 }, { 207 .name = "88pm860x-led", 208 .id = 3, 209 .num_resources = ARRAY_SIZE(led3_resources), 210 .resources = led3_resources, 211 }, { 212 .name = "88pm860x-led", 213 .id = 4, 214 .num_resources = ARRAY_SIZE(led4_resources), 215 .resources = led4_resources, 216 }, { 217 .name = "88pm860x-led", 218 .id = 5, 219 .num_resources = ARRAY_SIZE(led5_resources), 220 .resources = led5_resources, 221 }, 222 }; 223 224 static struct mfd_cell reg_devs[] = { 225 { 226 .name = "88pm860x-regulator", 227 .id = 0, 228 .num_resources = ARRAY_SIZE(buck1_resources), 229 .resources = buck1_resources, 230 }, { 231 .name = "88pm860x-regulator", 232 .id = 1, 233 .num_resources = ARRAY_SIZE(buck2_resources), 234 .resources = buck2_resources, 235 }, { 236 .name = "88pm860x-regulator", 237 .id = 2, 238 .num_resources = ARRAY_SIZE(buck3_resources), 239 .resources = buck3_resources, 240 }, { 241 .name = "88pm860x-regulator", 242 .id = 3, 243 .num_resources = ARRAY_SIZE(ldo1_resources), 244 .resources = ldo1_resources, 245 }, { 246 .name = "88pm860x-regulator", 247 .id = 4, 248 .num_resources = ARRAY_SIZE(ldo2_resources), 249 .resources = ldo2_resources, 250 }, { 251 .name = "88pm860x-regulator", 252 .id = 5, 253 .num_resources = ARRAY_SIZE(ldo3_resources), 254 .resources = ldo3_resources, 255 }, { 256 .name = "88pm860x-regulator", 257 .id = 6, 258 .num_resources = ARRAY_SIZE(ldo4_resources), 259 .resources = ldo4_resources, 260 }, { 261 .name = "88pm860x-regulator", 262 .id = 7, 263 .num_resources = ARRAY_SIZE(ldo5_resources), 264 .resources = ldo5_resources, 265 }, { 266 .name = "88pm860x-regulator", 267 .id = 8, 268 .num_resources = ARRAY_SIZE(ldo6_resources), 269 .resources = ldo6_resources, 270 }, { 271 .name = "88pm860x-regulator", 272 .id = 9, 273 .num_resources = ARRAY_SIZE(ldo7_resources), 274 .resources = ldo7_resources, 275 }, { 276 .name = "88pm860x-regulator", 277 .id = 10, 278 .num_resources = ARRAY_SIZE(ldo8_resources), 279 .resources = ldo8_resources, 280 }, { 281 .name = "88pm860x-regulator", 282 .id = 11, 283 .num_resources = ARRAY_SIZE(ldo9_resources), 284 .resources = ldo9_resources, 285 }, { 286 .name = "88pm860x-regulator", 287 .id = 12, 288 .num_resources = ARRAY_SIZE(ldo10_resources), 289 .resources = ldo10_resources, 290 }, { 291 .name = "88pm860x-regulator", 292 .id = 13, 293 .num_resources = ARRAY_SIZE(ldo12_resources), 294 .resources = ldo12_resources, 295 }, { 296 .name = "88pm860x-regulator", 297 .id = 14, 298 .num_resources = ARRAY_SIZE(ldo_vibrator_resources), 299 .resources = ldo_vibrator_resources, 300 }, { 301 .name = "88pm860x-regulator", 302 .id = 15, 303 .num_resources = ARRAY_SIZE(ldo14_resources), 304 .resources = ldo14_resources, 305 }, 306 }; 307 308 static struct mfd_cell touch_devs[] = { 309 {"88pm860x-touch", -1,}, 310 }; 311 312 static struct mfd_cell onkey_devs[] = { 313 {"88pm860x-onkey", -1,}, 314 }; 315 316 static struct mfd_cell codec_devs[] = { 317 {"88pm860x-codec", -1,}, 318 }; 319 320 static struct regulator_consumer_supply preg_supply[] = { 321 REGULATOR_SUPPLY("preg", "charger-manager"), 322 }; 323 324 static struct regulator_init_data preg_init_data = { 325 .num_consumer_supplies = ARRAY_SIZE(preg_supply), 326 .consumer_supplies = &preg_supply[0], 327 }; 328 329 static struct charger_regulator chg_desc_regulator_data[] = { 330 { .regulator_name = "preg", }, 331 }; 332 333 static struct mfd_cell power_devs[] = { 334 {"88pm860x-battery", -1,}, 335 {"88pm860x-charger", -1,}, 336 {"88pm860x-preg", -1,}, 337 {"charger-manager", -1,}, 338 }; 339 340 static struct mfd_cell rtc_devs[] = { 341 {"88pm860x-rtc", -1,}, 342 }; 343 344 345 struct pm860x_irq_data { 346 int reg; 347 int mask_reg; 348 int enable; /* enable or not */ 349 int offs; /* bit offset in mask register */ 350 }; 351 352 static struct pm860x_irq_data pm860x_irqs[] = { 353 [PM8607_IRQ_ONKEY] = { 354 .reg = PM8607_INT_STATUS1, 355 .mask_reg = PM8607_INT_MASK_1, 356 .offs = 1 << 0, 357 }, 358 [PM8607_IRQ_EXTON] = { 359 .reg = PM8607_INT_STATUS1, 360 .mask_reg = PM8607_INT_MASK_1, 361 .offs = 1 << 1, 362 }, 363 [PM8607_IRQ_CHG] = { 364 .reg = PM8607_INT_STATUS1, 365 .mask_reg = PM8607_INT_MASK_1, 366 .offs = 1 << 2, 367 }, 368 [PM8607_IRQ_BAT] = { 369 .reg = PM8607_INT_STATUS1, 370 .mask_reg = PM8607_INT_MASK_1, 371 .offs = 1 << 3, 372 }, 373 [PM8607_IRQ_RTC] = { 374 .reg = PM8607_INT_STATUS1, 375 .mask_reg = PM8607_INT_MASK_1, 376 .offs = 1 << 4, 377 }, 378 [PM8607_IRQ_CC] = { 379 .reg = PM8607_INT_STATUS1, 380 .mask_reg = PM8607_INT_MASK_1, 381 .offs = 1 << 5, 382 }, 383 [PM8607_IRQ_VBAT] = { 384 .reg = PM8607_INT_STATUS2, 385 .mask_reg = PM8607_INT_MASK_2, 386 .offs = 1 << 0, 387 }, 388 [PM8607_IRQ_VCHG] = { 389 .reg = PM8607_INT_STATUS2, 390 .mask_reg = PM8607_INT_MASK_2, 391 .offs = 1 << 1, 392 }, 393 [PM8607_IRQ_VSYS] = { 394 .reg = PM8607_INT_STATUS2, 395 .mask_reg = PM8607_INT_MASK_2, 396 .offs = 1 << 2, 397 }, 398 [PM8607_IRQ_TINT] = { 399 .reg = PM8607_INT_STATUS2, 400 .mask_reg = PM8607_INT_MASK_2, 401 .offs = 1 << 3, 402 }, 403 [PM8607_IRQ_GPADC0] = { 404 .reg = PM8607_INT_STATUS2, 405 .mask_reg = PM8607_INT_MASK_2, 406 .offs = 1 << 4, 407 }, 408 [PM8607_IRQ_GPADC1] = { 409 .reg = PM8607_INT_STATUS2, 410 .mask_reg = PM8607_INT_MASK_2, 411 .offs = 1 << 5, 412 }, 413 [PM8607_IRQ_GPADC2] = { 414 .reg = PM8607_INT_STATUS2, 415 .mask_reg = PM8607_INT_MASK_2, 416 .offs = 1 << 6, 417 }, 418 [PM8607_IRQ_GPADC3] = { 419 .reg = PM8607_INT_STATUS2, 420 .mask_reg = PM8607_INT_MASK_2, 421 .offs = 1 << 7, 422 }, 423 [PM8607_IRQ_AUDIO_SHORT] = { 424 .reg = PM8607_INT_STATUS3, 425 .mask_reg = PM8607_INT_MASK_3, 426 .offs = 1 << 0, 427 }, 428 [PM8607_IRQ_PEN] = { 429 .reg = PM8607_INT_STATUS3, 430 .mask_reg = PM8607_INT_MASK_3, 431 .offs = 1 << 1, 432 }, 433 [PM8607_IRQ_HEADSET] = { 434 .reg = PM8607_INT_STATUS3, 435 .mask_reg = PM8607_INT_MASK_3, 436 .offs = 1 << 2, 437 }, 438 [PM8607_IRQ_HOOK] = { 439 .reg = PM8607_INT_STATUS3, 440 .mask_reg = PM8607_INT_MASK_3, 441 .offs = 1 << 3, 442 }, 443 [PM8607_IRQ_MICIN] = { 444 .reg = PM8607_INT_STATUS3, 445 .mask_reg = PM8607_INT_MASK_3, 446 .offs = 1 << 4, 447 }, 448 [PM8607_IRQ_CHG_FAIL] = { 449 .reg = PM8607_INT_STATUS3, 450 .mask_reg = PM8607_INT_MASK_3, 451 .offs = 1 << 5, 452 }, 453 [PM8607_IRQ_CHG_DONE] = { 454 .reg = PM8607_INT_STATUS3, 455 .mask_reg = PM8607_INT_MASK_3, 456 .offs = 1 << 6, 457 }, 458 [PM8607_IRQ_CHG_FAULT] = { 459 .reg = PM8607_INT_STATUS3, 460 .mask_reg = PM8607_INT_MASK_3, 461 .offs = 1 << 7, 462 }, 463 }; 464 465 static irqreturn_t pm860x_irq(int irq, void *data) 466 { 467 struct pm860x_chip *chip = data; 468 struct pm860x_irq_data *irq_data; 469 struct i2c_client *i2c; 470 int read_reg = -1, value = 0; 471 int i; 472 473 i2c = (chip->id == CHIP_PM8607) ? chip->client : chip->companion; 474 for (i = 0; i < ARRAY_SIZE(pm860x_irqs); i++) { 475 irq_data = &pm860x_irqs[i]; 476 if (read_reg != irq_data->reg) { 477 read_reg = irq_data->reg; 478 value = pm860x_reg_read(i2c, irq_data->reg); 479 } 480 if (value & irq_data->enable) 481 handle_nested_irq(chip->irq_base + i); 482 } 483 return IRQ_HANDLED; 484 } 485 486 static void pm860x_irq_lock(struct irq_data *data) 487 { 488 struct pm860x_chip *chip = irq_data_get_irq_chip_data(data); 489 490 mutex_lock(&chip->irq_lock); 491 } 492 493 static void pm860x_irq_sync_unlock(struct irq_data *data) 494 { 495 struct pm860x_chip *chip = irq_data_get_irq_chip_data(data); 496 struct pm860x_irq_data *irq_data; 497 struct i2c_client *i2c; 498 static unsigned char cached[3] = {0x0, 0x0, 0x0}; 499 unsigned char mask[3]; 500 int i; 501 502 i2c = (chip->id == CHIP_PM8607) ? chip->client : chip->companion; 503 /* Load cached value. In initial, all IRQs are masked */ 504 for (i = 0; i < 3; i++) 505 mask[i] = cached[i]; 506 for (i = 0; i < ARRAY_SIZE(pm860x_irqs); i++) { 507 irq_data = &pm860x_irqs[i]; 508 switch (irq_data->mask_reg) { 509 case PM8607_INT_MASK_1: 510 mask[0] &= ~irq_data->offs; 511 mask[0] |= irq_data->enable; 512 break; 513 case PM8607_INT_MASK_2: 514 mask[1] &= ~irq_data->offs; 515 mask[1] |= irq_data->enable; 516 break; 517 case PM8607_INT_MASK_3: 518 mask[2] &= ~irq_data->offs; 519 mask[2] |= irq_data->enable; 520 break; 521 default: 522 dev_err(chip->dev, "wrong IRQ\n"); 523 break; 524 } 525 } 526 /* update mask into registers */ 527 for (i = 0; i < 3; i++) { 528 if (mask[i] != cached[i]) { 529 cached[i] = mask[i]; 530 pm860x_reg_write(i2c, PM8607_INT_MASK_1 + i, mask[i]); 531 } 532 } 533 534 mutex_unlock(&chip->irq_lock); 535 } 536 537 static void pm860x_irq_enable(struct irq_data *data) 538 { 539 pm860x_irqs[data->hwirq].enable = pm860x_irqs[data->hwirq].offs; 540 } 541 542 static void pm860x_irq_disable(struct irq_data *data) 543 { 544 pm860x_irqs[data->hwirq].enable = 0; 545 } 546 547 static struct irq_chip pm860x_irq_chip = { 548 .name = "88pm860x", 549 .irq_bus_lock = pm860x_irq_lock, 550 .irq_bus_sync_unlock = pm860x_irq_sync_unlock, 551 .irq_enable = pm860x_irq_enable, 552 .irq_disable = pm860x_irq_disable, 553 }; 554 555 static int pm860x_irq_domain_map(struct irq_domain *d, unsigned int virq, 556 irq_hw_number_t hw) 557 { 558 irq_set_chip_data(virq, d->host_data); 559 irq_set_chip_and_handler(virq, &pm860x_irq_chip, handle_edge_irq); 560 irq_set_nested_thread(virq, 1); 561 #ifdef CONFIG_ARM 562 set_irq_flags(virq, IRQF_VALID); 563 #else 564 irq_set_noprobe(virq); 565 #endif 566 return 0; 567 } 568 569 static struct irq_domain_ops pm860x_irq_domain_ops = { 570 .map = pm860x_irq_domain_map, 571 .xlate = irq_domain_xlate_onetwocell, 572 }; 573 574 static int device_irq_init(struct pm860x_chip *chip, 575 struct pm860x_platform_data *pdata) 576 { 577 struct i2c_client *i2c = (chip->id == CHIP_PM8607) ? 578 chip->client : chip->companion; 579 unsigned char status_buf[INT_STATUS_NUM]; 580 unsigned long flags = IRQF_TRIGGER_FALLING | IRQF_ONESHOT; 581 int data, mask, ret = -EINVAL; 582 int nr_irqs, irq_base = -1; 583 struct device_node *node = i2c->dev.of_node; 584 585 mask = PM8607_B0_MISC1_INV_INT | PM8607_B0_MISC1_INT_CLEAR 586 | PM8607_B0_MISC1_INT_MASK; 587 data = 0; 588 chip->irq_mode = 0; 589 if (pdata && pdata->irq_mode) { 590 /* 591 * irq_mode defines the way of clearing interrupt. If it's 1, 592 * clear IRQ by write. Otherwise, clear it by read. 593 * This control bit is valid from 88PM8607 B0 steping. 594 */ 595 data |= PM8607_B0_MISC1_INT_CLEAR; 596 chip->irq_mode = 1; 597 } 598 ret = pm860x_set_bits(i2c, PM8607_B0_MISC1, mask, data); 599 if (ret < 0) 600 goto out; 601 602 /* mask all IRQs */ 603 memset(status_buf, 0, INT_STATUS_NUM); 604 ret = pm860x_bulk_write(i2c, PM8607_INT_MASK_1, 605 INT_STATUS_NUM, status_buf); 606 if (ret < 0) 607 goto out; 608 609 if (chip->irq_mode) { 610 /* clear interrupt status by write */ 611 memset(status_buf, 0xFF, INT_STATUS_NUM); 612 ret = pm860x_bulk_write(i2c, PM8607_INT_STATUS1, 613 INT_STATUS_NUM, status_buf); 614 } else { 615 /* clear interrupt status by read */ 616 ret = pm860x_bulk_read(i2c, PM8607_INT_STATUS1, 617 INT_STATUS_NUM, status_buf); 618 } 619 if (ret < 0) 620 goto out; 621 622 mutex_init(&chip->irq_lock); 623 624 if (pdata && pdata->irq_base) 625 irq_base = pdata->irq_base; 626 nr_irqs = ARRAY_SIZE(pm860x_irqs); 627 chip->irq_base = irq_alloc_descs(irq_base, 0, nr_irqs, 0); 628 if (chip->irq_base < 0) { 629 dev_err(&i2c->dev, "Failed to allocate interrupts, ret:%d\n", 630 chip->irq_base); 631 ret = -EBUSY; 632 goto out; 633 } 634 irq_domain_add_legacy(node, nr_irqs, chip->irq_base, 0, 635 &pm860x_irq_domain_ops, chip); 636 chip->core_irq = i2c->irq; 637 if (!chip->core_irq) 638 goto out; 639 640 ret = request_threaded_irq(chip->core_irq, NULL, pm860x_irq, 641 flags | IRQF_ONESHOT, "88pm860x", chip); 642 if (ret) { 643 dev_err(chip->dev, "Failed to request IRQ: %d\n", ret); 644 chip->core_irq = 0; 645 } 646 647 return 0; 648 out: 649 chip->core_irq = 0; 650 return ret; 651 } 652 653 static void device_irq_exit(struct pm860x_chip *chip) 654 { 655 if (chip->core_irq) 656 free_irq(chip->core_irq, chip); 657 } 658 659 int pm8606_osc_enable(struct pm860x_chip *chip, unsigned short client) 660 { 661 int ret = -EIO; 662 struct i2c_client *i2c = (chip->id == CHIP_PM8606) ? 663 chip->client : chip->companion; 664 665 dev_dbg(chip->dev, "%s(B): client=0x%x\n", __func__, client); 666 dev_dbg(chip->dev, "%s(B): vote=0x%x status=%d\n", 667 __func__, chip->osc_vote, 668 chip->osc_status); 669 670 mutex_lock(&chip->osc_lock); 671 /* Update voting status */ 672 chip->osc_vote |= client; 673 /* If reference group is off - turn on*/ 674 if (chip->osc_status != PM8606_REF_GP_OSC_ON) { 675 chip->osc_status = PM8606_REF_GP_OSC_UNKNOWN; 676 /* Enable Reference group Vsys */ 677 if (pm860x_set_bits(i2c, PM8606_VSYS, 678 PM8606_VSYS_EN, PM8606_VSYS_EN)) 679 goto out; 680 681 /*Enable Internal Oscillator */ 682 if (pm860x_set_bits(i2c, PM8606_MISC, 683 PM8606_MISC_OSC_EN, PM8606_MISC_OSC_EN)) 684 goto out; 685 /* Update status (only if writes succeed) */ 686 chip->osc_status = PM8606_REF_GP_OSC_ON; 687 } 688 mutex_unlock(&chip->osc_lock); 689 690 dev_dbg(chip->dev, "%s(A): vote=0x%x status=%d ret=%d\n", 691 __func__, chip->osc_vote, 692 chip->osc_status, ret); 693 return 0; 694 out: 695 mutex_unlock(&chip->osc_lock); 696 return ret; 697 } 698 EXPORT_SYMBOL(pm8606_osc_enable); 699 700 int pm8606_osc_disable(struct pm860x_chip *chip, unsigned short client) 701 { 702 int ret = -EIO; 703 struct i2c_client *i2c = (chip->id == CHIP_PM8606) ? 704 chip->client : chip->companion; 705 706 dev_dbg(chip->dev, "%s(B): client=0x%x\n", __func__, client); 707 dev_dbg(chip->dev, "%s(B): vote=0x%x status=%d\n", 708 __func__, chip->osc_vote, 709 chip->osc_status); 710 711 mutex_lock(&chip->osc_lock); 712 /*Update voting status */ 713 chip->osc_vote &= ~(client); 714 /* If reference group is off and this is the last client to release 715 * - turn off */ 716 if ((chip->osc_status != PM8606_REF_GP_OSC_OFF) && 717 (chip->osc_vote == REF_GP_NO_CLIENTS)) { 718 chip->osc_status = PM8606_REF_GP_OSC_UNKNOWN; 719 /* Disable Reference group Vsys */ 720 if (pm860x_set_bits(i2c, PM8606_VSYS, PM8606_VSYS_EN, 0)) 721 goto out; 722 /* Disable Internal Oscillator */ 723 if (pm860x_set_bits(i2c, PM8606_MISC, PM8606_MISC_OSC_EN, 0)) 724 goto out; 725 chip->osc_status = PM8606_REF_GP_OSC_OFF; 726 } 727 mutex_unlock(&chip->osc_lock); 728 729 dev_dbg(chip->dev, "%s(A): vote=0x%x status=%d ret=%d\n", 730 __func__, chip->osc_vote, 731 chip->osc_status, ret); 732 return 0; 733 out: 734 mutex_unlock(&chip->osc_lock); 735 return ret; 736 } 737 EXPORT_SYMBOL(pm8606_osc_disable); 738 739 static void device_osc_init(struct i2c_client *i2c) 740 { 741 struct pm860x_chip *chip = i2c_get_clientdata(i2c); 742 743 mutex_init(&chip->osc_lock); 744 /* init portofino reference group voting and status */ 745 /* Disable Reference group Vsys */ 746 pm860x_set_bits(i2c, PM8606_VSYS, PM8606_VSYS_EN, 0); 747 /* Disable Internal Oscillator */ 748 pm860x_set_bits(i2c, PM8606_MISC, PM8606_MISC_OSC_EN, 0); 749 750 chip->osc_vote = REF_GP_NO_CLIENTS; 751 chip->osc_status = PM8606_REF_GP_OSC_OFF; 752 } 753 754 static void device_bk_init(struct pm860x_chip *chip, 755 struct pm860x_platform_data *pdata) 756 { 757 int ret, i; 758 759 if (pdata && pdata->backlight) { 760 if (pdata->num_backlights > ARRAY_SIZE(bk_devs)) 761 pdata->num_backlights = ARRAY_SIZE(bk_devs); 762 for (i = 0; i < pdata->num_backlights; i++) { 763 bk_devs[i].platform_data = &pdata->backlight[i]; 764 bk_devs[i].pdata_size = 765 sizeof(struct pm860x_backlight_pdata); 766 } 767 } 768 ret = mfd_add_devices(chip->dev, 0, bk_devs, 769 ARRAY_SIZE(bk_devs), NULL, 0, NULL); 770 if (ret < 0) 771 dev_err(chip->dev, "Failed to add backlight subdev\n"); 772 } 773 774 static void device_led_init(struct pm860x_chip *chip, 775 struct pm860x_platform_data *pdata) 776 { 777 int ret, i; 778 779 if (pdata && pdata->led) { 780 if (pdata->num_leds > ARRAY_SIZE(led_devs)) 781 pdata->num_leds = ARRAY_SIZE(led_devs); 782 for (i = 0; i < pdata->num_leds; i++) { 783 led_devs[i].platform_data = &pdata->led[i]; 784 led_devs[i].pdata_size = 785 sizeof(struct pm860x_led_pdata); 786 } 787 } 788 ret = mfd_add_devices(chip->dev, 0, led_devs, 789 ARRAY_SIZE(led_devs), NULL, 0, NULL); 790 if (ret < 0) { 791 dev_err(chip->dev, "Failed to add led subdev\n"); 792 return; 793 } 794 } 795 796 static void device_regulator_init(struct pm860x_chip *chip, 797 struct pm860x_platform_data *pdata) 798 { 799 int ret; 800 801 if (pdata == NULL) 802 return; 803 if (pdata->buck1) { 804 reg_devs[0].platform_data = pdata->buck1; 805 reg_devs[0].pdata_size = sizeof(struct regulator_init_data); 806 } 807 if (pdata->buck2) { 808 reg_devs[1].platform_data = pdata->buck2; 809 reg_devs[1].pdata_size = sizeof(struct regulator_init_data); 810 } 811 if (pdata->buck3) { 812 reg_devs[2].platform_data = pdata->buck3; 813 reg_devs[2].pdata_size = sizeof(struct regulator_init_data); 814 } 815 if (pdata->ldo1) { 816 reg_devs[3].platform_data = pdata->ldo1; 817 reg_devs[3].pdata_size = sizeof(struct regulator_init_data); 818 } 819 if (pdata->ldo2) { 820 reg_devs[4].platform_data = pdata->ldo2; 821 reg_devs[4].pdata_size = sizeof(struct regulator_init_data); 822 } 823 if (pdata->ldo3) { 824 reg_devs[5].platform_data = pdata->ldo3; 825 reg_devs[5].pdata_size = sizeof(struct regulator_init_data); 826 } 827 if (pdata->ldo4) { 828 reg_devs[6].platform_data = pdata->ldo4; 829 reg_devs[6].pdata_size = sizeof(struct regulator_init_data); 830 } 831 if (pdata->ldo5) { 832 reg_devs[7].platform_data = pdata->ldo5; 833 reg_devs[7].pdata_size = sizeof(struct regulator_init_data); 834 } 835 if (pdata->ldo6) { 836 reg_devs[8].platform_data = pdata->ldo6; 837 reg_devs[8].pdata_size = sizeof(struct regulator_init_data); 838 } 839 if (pdata->ldo7) { 840 reg_devs[9].platform_data = pdata->ldo7; 841 reg_devs[9].pdata_size = sizeof(struct regulator_init_data); 842 } 843 if (pdata->ldo8) { 844 reg_devs[10].platform_data = pdata->ldo8; 845 reg_devs[10].pdata_size = sizeof(struct regulator_init_data); 846 } 847 if (pdata->ldo9) { 848 reg_devs[11].platform_data = pdata->ldo9; 849 reg_devs[11].pdata_size = sizeof(struct regulator_init_data); 850 } 851 if (pdata->ldo10) { 852 reg_devs[12].platform_data = pdata->ldo10; 853 reg_devs[12].pdata_size = sizeof(struct regulator_init_data); 854 } 855 if (pdata->ldo12) { 856 reg_devs[13].platform_data = pdata->ldo12; 857 reg_devs[13].pdata_size = sizeof(struct regulator_init_data); 858 } 859 if (pdata->ldo_vibrator) { 860 reg_devs[14].platform_data = pdata->ldo_vibrator; 861 reg_devs[14].pdata_size = sizeof(struct regulator_init_data); 862 } 863 if (pdata->ldo14) { 864 reg_devs[15].platform_data = pdata->ldo14; 865 reg_devs[15].pdata_size = sizeof(struct regulator_init_data); 866 } 867 ret = mfd_add_devices(chip->dev, 0, reg_devs, 868 ARRAY_SIZE(reg_devs), NULL, 0, NULL); 869 if (ret < 0) { 870 dev_err(chip->dev, "Failed to add regulator subdev\n"); 871 return; 872 } 873 } 874 875 static void device_rtc_init(struct pm860x_chip *chip, 876 struct pm860x_platform_data *pdata) 877 { 878 int ret; 879 880 if (!pdata) 881 return; 882 883 rtc_devs[0].platform_data = pdata->rtc; 884 rtc_devs[0].pdata_size = sizeof(struct pm860x_rtc_pdata); 885 rtc_devs[0].num_resources = ARRAY_SIZE(rtc_resources); 886 rtc_devs[0].resources = &rtc_resources[0]; 887 ret = mfd_add_devices(chip->dev, 0, &rtc_devs[0], 888 ARRAY_SIZE(rtc_devs), &rtc_resources[0], 889 chip->irq_base, NULL); 890 if (ret < 0) 891 dev_err(chip->dev, "Failed to add rtc subdev\n"); 892 } 893 894 static void device_touch_init(struct pm860x_chip *chip, 895 struct pm860x_platform_data *pdata) 896 { 897 int ret; 898 899 if (pdata == NULL) 900 return; 901 902 touch_devs[0].platform_data = pdata->touch; 903 touch_devs[0].pdata_size = sizeof(struct pm860x_touch_pdata); 904 touch_devs[0].num_resources = ARRAY_SIZE(touch_resources); 905 touch_devs[0].resources = &touch_resources[0]; 906 ret = mfd_add_devices(chip->dev, 0, &touch_devs[0], 907 ARRAY_SIZE(touch_devs), &touch_resources[0], 908 chip->irq_base, NULL); 909 if (ret < 0) 910 dev_err(chip->dev, "Failed to add touch subdev\n"); 911 } 912 913 static void device_power_init(struct pm860x_chip *chip, 914 struct pm860x_platform_data *pdata) 915 { 916 int ret; 917 918 if (pdata == NULL) 919 return; 920 921 power_devs[0].platform_data = pdata->power; 922 power_devs[0].pdata_size = sizeof(struct pm860x_power_pdata); 923 power_devs[0].num_resources = ARRAY_SIZE(battery_resources); 924 power_devs[0].resources = &battery_resources[0], 925 ret = mfd_add_devices(chip->dev, 0, &power_devs[0], 1, 926 &battery_resources[0], chip->irq_base, NULL); 927 if (ret < 0) 928 dev_err(chip->dev, "Failed to add battery subdev\n"); 929 930 power_devs[1].platform_data = pdata->power; 931 power_devs[1].pdata_size = sizeof(struct pm860x_power_pdata); 932 power_devs[1].num_resources = ARRAY_SIZE(charger_resources); 933 power_devs[1].resources = &charger_resources[0], 934 ret = mfd_add_devices(chip->dev, 0, &power_devs[1], 1, 935 &charger_resources[0], chip->irq_base, NULL); 936 if (ret < 0) 937 dev_err(chip->dev, "Failed to add charger subdev\n"); 938 939 power_devs[2].platform_data = &preg_init_data; 940 power_devs[2].pdata_size = sizeof(struct regulator_init_data); 941 ret = mfd_add_devices(chip->dev, 0, &power_devs[2], 1, 942 NULL, chip->irq_base, NULL); 943 if (ret < 0) 944 dev_err(chip->dev, "Failed to add preg subdev\n"); 945 946 if (pdata->chg_desc) { 947 pdata->chg_desc->charger_regulators = 948 &chg_desc_regulator_data[0]; 949 pdata->chg_desc->num_charger_regulators = 950 ARRAY_SIZE(chg_desc_regulator_data), 951 power_devs[3].platform_data = pdata->chg_desc; 952 power_devs[3].pdata_size = sizeof(*pdata->chg_desc); 953 ret = mfd_add_devices(chip->dev, 0, &power_devs[3], 1, 954 NULL, chip->irq_base, NULL); 955 if (ret < 0) 956 dev_err(chip->dev, "Failed to add chg-manager subdev\n"); 957 } 958 } 959 960 static void device_onkey_init(struct pm860x_chip *chip, 961 struct pm860x_platform_data *pdata) 962 { 963 int ret; 964 965 onkey_devs[0].num_resources = ARRAY_SIZE(onkey_resources); 966 onkey_devs[0].resources = &onkey_resources[0], 967 ret = mfd_add_devices(chip->dev, 0, &onkey_devs[0], 968 ARRAY_SIZE(onkey_devs), &onkey_resources[0], 969 chip->irq_base, NULL); 970 if (ret < 0) 971 dev_err(chip->dev, "Failed to add onkey subdev\n"); 972 } 973 974 static void device_codec_init(struct pm860x_chip *chip, 975 struct pm860x_platform_data *pdata) 976 { 977 int ret; 978 979 codec_devs[0].num_resources = ARRAY_SIZE(codec_resources); 980 codec_devs[0].resources = &codec_resources[0], 981 ret = mfd_add_devices(chip->dev, 0, &codec_devs[0], 982 ARRAY_SIZE(codec_devs), &codec_resources[0], 0, 983 NULL); 984 if (ret < 0) 985 dev_err(chip->dev, "Failed to add codec subdev\n"); 986 } 987 988 static void device_8607_init(struct pm860x_chip *chip, 989 struct i2c_client *i2c, 990 struct pm860x_platform_data *pdata) 991 { 992 int data, ret; 993 994 ret = pm860x_reg_read(i2c, PM8607_CHIP_ID); 995 if (ret < 0) { 996 dev_err(chip->dev, "Failed to read CHIP ID: %d\n", ret); 997 goto out; 998 } 999 switch (ret & PM8607_VERSION_MASK) { 1000 case 0x40: 1001 case 0x50: 1002 dev_info(chip->dev, "Marvell 88PM8607 (ID: %02x) detected\n", 1003 ret); 1004 break; 1005 default: 1006 dev_err(chip->dev, 1007 "Failed to detect Marvell 88PM8607. Chip ID: %02x\n", 1008 ret); 1009 goto out; 1010 } 1011 1012 ret = pm860x_reg_read(i2c, PM8607_BUCK3); 1013 if (ret < 0) { 1014 dev_err(chip->dev, "Failed to read BUCK3 register: %d\n", ret); 1015 goto out; 1016 } 1017 if (ret & PM8607_BUCK3_DOUBLE) 1018 chip->buck3_double = 1; 1019 1020 ret = pm860x_reg_read(i2c, PM8607_B0_MISC1); 1021 if (ret < 0) { 1022 dev_err(chip->dev, "Failed to read MISC1 register: %d\n", ret); 1023 goto out; 1024 } 1025 1026 if (pdata && (pdata->i2c_port == PI2C_PORT)) 1027 data = PM8607_B0_MISC1_PI2C; 1028 else 1029 data = 0; 1030 ret = pm860x_set_bits(i2c, PM8607_B0_MISC1, PM8607_B0_MISC1_PI2C, data); 1031 if (ret < 0) { 1032 dev_err(chip->dev, "Failed to access MISC1:%d\n", ret); 1033 goto out; 1034 } 1035 1036 ret = device_irq_init(chip, pdata); 1037 if (ret < 0) 1038 goto out; 1039 1040 device_regulator_init(chip, pdata); 1041 device_rtc_init(chip, pdata); 1042 device_onkey_init(chip, pdata); 1043 device_touch_init(chip, pdata); 1044 device_power_init(chip, pdata); 1045 device_codec_init(chip, pdata); 1046 out: 1047 return; 1048 } 1049 1050 static void device_8606_init(struct pm860x_chip *chip, 1051 struct i2c_client *i2c, 1052 struct pm860x_platform_data *pdata) 1053 { 1054 device_osc_init(i2c); 1055 device_bk_init(chip, pdata); 1056 device_led_init(chip, pdata); 1057 } 1058 1059 static int pm860x_device_init(struct pm860x_chip *chip, 1060 struct pm860x_platform_data *pdata) 1061 { 1062 chip->core_irq = 0; 1063 1064 switch (chip->id) { 1065 case CHIP_PM8606: 1066 device_8606_init(chip, chip->client, pdata); 1067 break; 1068 case CHIP_PM8607: 1069 device_8607_init(chip, chip->client, pdata); 1070 break; 1071 } 1072 1073 if (chip->companion) { 1074 switch (chip->id) { 1075 case CHIP_PM8607: 1076 device_8606_init(chip, chip->companion, pdata); 1077 break; 1078 case CHIP_PM8606: 1079 device_8607_init(chip, chip->companion, pdata); 1080 break; 1081 } 1082 } 1083 1084 return 0; 1085 } 1086 1087 static void pm860x_device_exit(struct pm860x_chip *chip) 1088 { 1089 device_irq_exit(chip); 1090 mfd_remove_devices(chip->dev); 1091 } 1092 1093 static int verify_addr(struct i2c_client *i2c) 1094 { 1095 unsigned short addr_8607[] = {0x30, 0x34}; 1096 unsigned short addr_8606[] = {0x10, 0x11}; 1097 int size, i; 1098 1099 if (i2c == NULL) 1100 return 0; 1101 size = ARRAY_SIZE(addr_8606); 1102 for (i = 0; i < size; i++) { 1103 if (i2c->addr == *(addr_8606 + i)) 1104 return CHIP_PM8606; 1105 } 1106 size = ARRAY_SIZE(addr_8607); 1107 for (i = 0; i < size; i++) { 1108 if (i2c->addr == *(addr_8607 + i)) 1109 return CHIP_PM8607; 1110 } 1111 return 0; 1112 } 1113 1114 static struct regmap_config pm860x_regmap_config = { 1115 .reg_bits = 8, 1116 .val_bits = 8, 1117 }; 1118 1119 static int pm860x_dt_init(struct device_node *np, 1120 struct device *dev, 1121 struct pm860x_platform_data *pdata) 1122 { 1123 int ret; 1124 1125 if (of_get_property(np, "marvell,88pm860x-irq-read-clr", NULL)) 1126 pdata->irq_mode = 1; 1127 ret = of_property_read_u32(np, "marvell,88pm860x-slave-addr", 1128 &pdata->companion_addr); 1129 if (ret) { 1130 dev_err(dev, 1131 "Not found \"marvell,88pm860x-slave-addr\" property\n"); 1132 pdata->companion_addr = 0; 1133 } 1134 return 0; 1135 } 1136 1137 static int pm860x_probe(struct i2c_client *client, 1138 const struct i2c_device_id *id) 1139 { 1140 struct pm860x_platform_data *pdata = dev_get_platdata(&client->dev); 1141 struct device_node *node = client->dev.of_node; 1142 struct pm860x_chip *chip; 1143 int ret; 1144 1145 if (node && !pdata) { 1146 /* parse DT to get platform data */ 1147 pdata = devm_kzalloc(&client->dev, 1148 sizeof(struct pm860x_platform_data), 1149 GFP_KERNEL); 1150 if (!pdata) 1151 return -ENOMEM; 1152 ret = pm860x_dt_init(node, &client->dev, pdata); 1153 if (ret) 1154 return ret; 1155 } else if (!pdata) { 1156 pr_info("No platform data in %s!\n", __func__); 1157 return -EINVAL; 1158 } 1159 1160 chip = devm_kzalloc(&client->dev, 1161 sizeof(struct pm860x_chip), GFP_KERNEL); 1162 if (chip == NULL) 1163 return -ENOMEM; 1164 1165 chip->id = verify_addr(client); 1166 chip->regmap = devm_regmap_init_i2c(client, &pm860x_regmap_config); 1167 if (IS_ERR(chip->regmap)) { 1168 ret = PTR_ERR(chip->regmap); 1169 dev_err(&client->dev, "Failed to allocate register map: %d\n", 1170 ret); 1171 return ret; 1172 } 1173 chip->client = client; 1174 i2c_set_clientdata(client, chip); 1175 chip->dev = &client->dev; 1176 dev_set_drvdata(chip->dev, chip); 1177 1178 /* 1179 * Both client and companion client shares same platform driver. 1180 * Driver distinguishes them by pdata->companion_addr. 1181 * pdata->companion_addr is only assigned if companion chip exists. 1182 * At the same time, the companion_addr shouldn't equal to client 1183 * address. 1184 */ 1185 if (pdata->companion_addr && (pdata->companion_addr != client->addr)) { 1186 chip->companion_addr = pdata->companion_addr; 1187 chip->companion = i2c_new_dummy(chip->client->adapter, 1188 chip->companion_addr); 1189 if (!chip->companion) { 1190 dev_err(&client->dev, 1191 "Failed to allocate I2C companion device\n"); 1192 return -ENODEV; 1193 } 1194 chip->regmap_companion = regmap_init_i2c(chip->companion, 1195 &pm860x_regmap_config); 1196 if (IS_ERR(chip->regmap_companion)) { 1197 ret = PTR_ERR(chip->regmap_companion); 1198 dev_err(&chip->companion->dev, 1199 "Failed to allocate register map: %d\n", ret); 1200 i2c_unregister_device(chip->companion); 1201 return ret; 1202 } 1203 i2c_set_clientdata(chip->companion, chip); 1204 } 1205 1206 pm860x_device_init(chip, pdata); 1207 return 0; 1208 } 1209 1210 static int pm860x_remove(struct i2c_client *client) 1211 { 1212 struct pm860x_chip *chip = i2c_get_clientdata(client); 1213 1214 pm860x_device_exit(chip); 1215 if (chip->companion) { 1216 regmap_exit(chip->regmap_companion); 1217 i2c_unregister_device(chip->companion); 1218 } 1219 return 0; 1220 } 1221 1222 #ifdef CONFIG_PM_SLEEP 1223 static int pm860x_suspend(struct device *dev) 1224 { 1225 struct i2c_client *client = container_of(dev, struct i2c_client, dev); 1226 struct pm860x_chip *chip = i2c_get_clientdata(client); 1227 1228 if (device_may_wakeup(dev) && chip->wakeup_flag) 1229 enable_irq_wake(chip->core_irq); 1230 return 0; 1231 } 1232 1233 static int pm860x_resume(struct device *dev) 1234 { 1235 struct i2c_client *client = container_of(dev, struct i2c_client, dev); 1236 struct pm860x_chip *chip = i2c_get_clientdata(client); 1237 1238 if (device_may_wakeup(dev) && chip->wakeup_flag) 1239 disable_irq_wake(chip->core_irq); 1240 return 0; 1241 } 1242 #endif 1243 1244 static SIMPLE_DEV_PM_OPS(pm860x_pm_ops, pm860x_suspend, pm860x_resume); 1245 1246 static const struct i2c_device_id pm860x_id_table[] = { 1247 { "88PM860x", 0 }, 1248 {} 1249 }; 1250 MODULE_DEVICE_TABLE(i2c, pm860x_id_table); 1251 1252 static const struct of_device_id pm860x_dt_ids[] = { 1253 { .compatible = "marvell,88pm860x", }, 1254 {}, 1255 }; 1256 MODULE_DEVICE_TABLE(of, pm860x_dt_ids); 1257 1258 static struct i2c_driver pm860x_driver = { 1259 .driver = { 1260 .name = "88PM860x", 1261 .owner = THIS_MODULE, 1262 .pm = &pm860x_pm_ops, 1263 .of_match_table = pm860x_dt_ids, 1264 }, 1265 .probe = pm860x_probe, 1266 .remove = pm860x_remove, 1267 .id_table = pm860x_id_table, 1268 }; 1269 1270 static int __init pm860x_i2c_init(void) 1271 { 1272 int ret; 1273 ret = i2c_add_driver(&pm860x_driver); 1274 if (ret != 0) 1275 pr_err("Failed to register 88PM860x I2C driver: %d\n", ret); 1276 return ret; 1277 } 1278 subsys_initcall(pm860x_i2c_init); 1279 1280 static void __exit pm860x_i2c_exit(void) 1281 { 1282 i2c_del_driver(&pm860x_driver); 1283 } 1284 module_exit(pm860x_i2c_exit); 1285 1286 MODULE_DESCRIPTION("PMIC Driver for Marvell 88PM860x"); 1287 MODULE_AUTHOR("Haojian Zhuang <haojian.zhuang@marvell.com>"); 1288 MODULE_LICENSE("GPL"); 1289