1 // SPDX-License-Identifier: GPL-2.0-only 2 /* 3 * Base driver for Marvell 88PM8607 4 * 5 * Copyright (C) 2009 Marvell International Ltd. 6 * 7 * Author: Haojian Zhuang <haojian.zhuang@marvell.com> 8 */ 9 10 #include <linux/kernel.h> 11 #include <linux/module.h> 12 #include <linux/err.h> 13 #include <linux/i2c.h> 14 #include <linux/irq.h> 15 #include <linux/interrupt.h> 16 #include <linux/irqdomain.h> 17 #include <linux/of.h> 18 #include <linux/of_platform.h> 19 #include <linux/platform_device.h> 20 #include <linux/regmap.h> 21 #include <linux/slab.h> 22 #include <linux/mfd/core.h> 23 #include <linux/mfd/88pm860x.h> 24 #include <linux/regulator/machine.h> 25 #include <linux/power/charger-manager.h> 26 27 #define INT_STATUS_NUM 3 28 29 static const struct resource bk0_resources[] = { 30 {2, 2, "duty cycle", IORESOURCE_REG, }, 31 {3, 3, "always on", IORESOURCE_REG, }, 32 {3, 3, "current", IORESOURCE_REG, }, 33 }; 34 static const struct resource bk1_resources[] = { 35 {4, 4, "duty cycle", IORESOURCE_REG, }, 36 {5, 5, "always on", IORESOURCE_REG, }, 37 {5, 5, "current", IORESOURCE_REG, }, 38 }; 39 static const struct resource bk2_resources[] = { 40 {6, 6, "duty cycle", IORESOURCE_REG, }, 41 {7, 7, "always on", IORESOURCE_REG, }, 42 {5, 5, "current", IORESOURCE_REG, }, 43 }; 44 45 static const struct resource led0_resources[] = { 46 /* RGB1 Red LED */ 47 {0xd, 0xd, "control", IORESOURCE_REG, }, 48 {0xc, 0xc, "blink", IORESOURCE_REG, }, 49 }; 50 static const struct resource led1_resources[] = { 51 /* RGB1 Green LED */ 52 {0xe, 0xe, "control", IORESOURCE_REG, }, 53 {0xc, 0xc, "blink", IORESOURCE_REG, }, 54 }; 55 static const struct resource led2_resources[] = { 56 /* RGB1 Blue LED */ 57 {0xf, 0xf, "control", IORESOURCE_REG, }, 58 {0xc, 0xc, "blink", IORESOURCE_REG, }, 59 }; 60 static const struct resource led3_resources[] = { 61 /* RGB2 Red LED */ 62 {0x9, 0x9, "control", IORESOURCE_REG, }, 63 {0x8, 0x8, "blink", IORESOURCE_REG, }, 64 }; 65 static const struct resource led4_resources[] = { 66 /* RGB2 Green LED */ 67 {0xa, 0xa, "control", IORESOURCE_REG, }, 68 {0x8, 0x8, "blink", IORESOURCE_REG, }, 69 }; 70 static const struct resource led5_resources[] = { 71 /* RGB2 Blue LED */ 72 {0xb, 0xb, "control", IORESOURCE_REG, }, 73 {0x8, 0x8, "blink", IORESOURCE_REG, }, 74 }; 75 76 static const struct resource buck1_resources[] = { 77 {0x24, 0x24, "buck set", IORESOURCE_REG, }, 78 }; 79 static const struct resource buck2_resources[] = { 80 {0x25, 0x25, "buck set", IORESOURCE_REG, }, 81 }; 82 static const struct resource buck3_resources[] = { 83 {0x26, 0x26, "buck set", IORESOURCE_REG, }, 84 }; 85 static const struct resource ldo1_resources[] = { 86 {0x10, 0x10, "ldo set", IORESOURCE_REG, }, 87 }; 88 static const struct resource ldo2_resources[] = { 89 {0x11, 0x11, "ldo set", IORESOURCE_REG, }, 90 }; 91 static const struct resource ldo3_resources[] = { 92 {0x12, 0x12, "ldo set", IORESOURCE_REG, }, 93 }; 94 static const struct resource ldo4_resources[] = { 95 {0x13, 0x13, "ldo set", IORESOURCE_REG, }, 96 }; 97 static const struct resource ldo5_resources[] = { 98 {0x14, 0x14, "ldo set", IORESOURCE_REG, }, 99 }; 100 static const struct resource ldo6_resources[] = { 101 {0x15, 0x15, "ldo set", IORESOURCE_REG, }, 102 }; 103 static const struct resource ldo7_resources[] = { 104 {0x16, 0x16, "ldo set", IORESOURCE_REG, }, 105 }; 106 static const struct resource ldo8_resources[] = { 107 {0x17, 0x17, "ldo set", IORESOURCE_REG, }, 108 }; 109 static const struct resource ldo9_resources[] = { 110 {0x18, 0x18, "ldo set", IORESOURCE_REG, }, 111 }; 112 static const struct resource ldo10_resources[] = { 113 {0x19, 0x19, "ldo set", IORESOURCE_REG, }, 114 }; 115 static const struct resource ldo12_resources[] = { 116 {0x1a, 0x1a, "ldo set", IORESOURCE_REG, }, 117 }; 118 static const struct resource ldo_vibrator_resources[] = { 119 {0x28, 0x28, "ldo set", IORESOURCE_REG, }, 120 }; 121 static const struct resource ldo14_resources[] = { 122 {0x1b, 0x1b, "ldo set", IORESOURCE_REG, }, 123 }; 124 125 static struct resource touch_resources[] = { 126 {PM8607_IRQ_PEN, PM8607_IRQ_PEN, "touch", IORESOURCE_IRQ,}, 127 }; 128 129 static struct resource onkey_resources[] = { 130 {PM8607_IRQ_ONKEY, PM8607_IRQ_ONKEY, "onkey", IORESOURCE_IRQ,}, 131 }; 132 133 static struct resource codec_resources[] = { 134 /* Headset microphone insertion or removal */ 135 {PM8607_IRQ_MICIN, PM8607_IRQ_MICIN, "micin", IORESOURCE_IRQ,}, 136 /* Hook-switch press or release */ 137 {PM8607_IRQ_HOOK, PM8607_IRQ_HOOK, "hook", IORESOURCE_IRQ,}, 138 /* Headset insertion or removal */ 139 {PM8607_IRQ_HEADSET, PM8607_IRQ_HEADSET, "headset", IORESOURCE_IRQ,}, 140 /* Audio short */ 141 {PM8607_IRQ_AUDIO_SHORT, PM8607_IRQ_AUDIO_SHORT, "audio-short", 142 IORESOURCE_IRQ,}, 143 }; 144 145 static struct resource battery_resources[] = { 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[] = { 151 {PM8607_IRQ_CHG, PM8607_IRQ_CHG, "charger detect", IORESOURCE_IRQ,}, 152 {PM8607_IRQ_CHG_DONE, PM8607_IRQ_CHG_DONE, "charging done", 153 IORESOURCE_IRQ,}, 154 {PM8607_IRQ_CHG_FAIL, PM8607_IRQ_CHG_FAIL, "charging timeout", 155 IORESOURCE_IRQ,}, 156 {PM8607_IRQ_CHG_FAULT, PM8607_IRQ_CHG_FAULT, "charging fault", 157 IORESOURCE_IRQ,}, 158 {PM8607_IRQ_GPADC1, PM8607_IRQ_GPADC1, "battery temperature", 159 IORESOURCE_IRQ,}, 160 {PM8607_IRQ_VBAT, PM8607_IRQ_VBAT, "battery voltage", IORESOURCE_IRQ,}, 161 {PM8607_IRQ_VCHG, PM8607_IRQ_VCHG, "vchg voltage", IORESOURCE_IRQ,}, 162 }; 163 164 static struct resource rtc_resources[] = { 165 {PM8607_IRQ_RTC, PM8607_IRQ_RTC, "rtc", IORESOURCE_IRQ,}, 166 }; 167 168 static struct mfd_cell bk_devs[] = { 169 { 170 .name = "88pm860x-backlight", 171 .id = 0, 172 .num_resources = ARRAY_SIZE(bk0_resources), 173 .resources = bk0_resources, 174 }, { 175 .name = "88pm860x-backlight", 176 .id = 1, 177 .num_resources = ARRAY_SIZE(bk1_resources), 178 .resources = bk1_resources, 179 }, { 180 .name = "88pm860x-backlight", 181 .id = 2, 182 .num_resources = ARRAY_SIZE(bk2_resources), 183 .resources = bk2_resources, 184 }, 185 }; 186 187 static struct mfd_cell led_devs[] = { 188 { 189 .name = "88pm860x-led", 190 .id = 0, 191 .num_resources = ARRAY_SIZE(led0_resources), 192 .resources = led0_resources, 193 }, { 194 .name = "88pm860x-led", 195 .id = 1, 196 .num_resources = ARRAY_SIZE(led1_resources), 197 .resources = led1_resources, 198 }, { 199 .name = "88pm860x-led", 200 .id = 2, 201 .num_resources = ARRAY_SIZE(led2_resources), 202 .resources = led2_resources, 203 }, { 204 .name = "88pm860x-led", 205 .id = 3, 206 .num_resources = ARRAY_SIZE(led3_resources), 207 .resources = led3_resources, 208 }, { 209 .name = "88pm860x-led", 210 .id = 4, 211 .num_resources = ARRAY_SIZE(led4_resources), 212 .resources = led4_resources, 213 }, { 214 .name = "88pm860x-led", 215 .id = 5, 216 .num_resources = ARRAY_SIZE(led5_resources), 217 .resources = led5_resources, 218 }, 219 }; 220 221 static struct mfd_cell reg_devs[] = { 222 { 223 .name = "88pm860x-regulator", 224 .id = 0, 225 .num_resources = ARRAY_SIZE(buck1_resources), 226 .resources = buck1_resources, 227 }, { 228 .name = "88pm860x-regulator", 229 .id = 1, 230 .num_resources = ARRAY_SIZE(buck2_resources), 231 .resources = buck2_resources, 232 }, { 233 .name = "88pm860x-regulator", 234 .id = 2, 235 .num_resources = ARRAY_SIZE(buck3_resources), 236 .resources = buck3_resources, 237 }, { 238 .name = "88pm860x-regulator", 239 .id = 3, 240 .num_resources = ARRAY_SIZE(ldo1_resources), 241 .resources = ldo1_resources, 242 }, { 243 .name = "88pm860x-regulator", 244 .id = 4, 245 .num_resources = ARRAY_SIZE(ldo2_resources), 246 .resources = ldo2_resources, 247 }, { 248 .name = "88pm860x-regulator", 249 .id = 5, 250 .num_resources = ARRAY_SIZE(ldo3_resources), 251 .resources = ldo3_resources, 252 }, { 253 .name = "88pm860x-regulator", 254 .id = 6, 255 .num_resources = ARRAY_SIZE(ldo4_resources), 256 .resources = ldo4_resources, 257 }, { 258 .name = "88pm860x-regulator", 259 .id = 7, 260 .num_resources = ARRAY_SIZE(ldo5_resources), 261 .resources = ldo5_resources, 262 }, { 263 .name = "88pm860x-regulator", 264 .id = 8, 265 .num_resources = ARRAY_SIZE(ldo6_resources), 266 .resources = ldo6_resources, 267 }, { 268 .name = "88pm860x-regulator", 269 .id = 9, 270 .num_resources = ARRAY_SIZE(ldo7_resources), 271 .resources = ldo7_resources, 272 }, { 273 .name = "88pm860x-regulator", 274 .id = 10, 275 .num_resources = ARRAY_SIZE(ldo8_resources), 276 .resources = ldo8_resources, 277 }, { 278 .name = "88pm860x-regulator", 279 .id = 11, 280 .num_resources = ARRAY_SIZE(ldo9_resources), 281 .resources = ldo9_resources, 282 }, { 283 .name = "88pm860x-regulator", 284 .id = 12, 285 .num_resources = ARRAY_SIZE(ldo10_resources), 286 .resources = ldo10_resources, 287 }, { 288 .name = "88pm860x-regulator", 289 .id = 13, 290 .num_resources = ARRAY_SIZE(ldo12_resources), 291 .resources = ldo12_resources, 292 }, { 293 .name = "88pm860x-regulator", 294 .id = 14, 295 .num_resources = ARRAY_SIZE(ldo_vibrator_resources), 296 .resources = ldo_vibrator_resources, 297 }, { 298 .name = "88pm860x-regulator", 299 .id = 15, 300 .num_resources = ARRAY_SIZE(ldo14_resources), 301 .resources = ldo14_resources, 302 }, 303 }; 304 305 static struct mfd_cell touch_devs[] = { 306 {"88pm860x-touch", -1,}, 307 }; 308 309 static struct mfd_cell onkey_devs[] = { 310 {"88pm860x-onkey", -1,}, 311 }; 312 313 static struct mfd_cell codec_devs[] = { 314 {"88pm860x-codec", -1,}, 315 }; 316 317 static struct regulator_consumer_supply preg_supply[] = { 318 REGULATOR_SUPPLY("preg", "charger-manager"), 319 }; 320 321 static struct regulator_init_data preg_init_data = { 322 .num_consumer_supplies = ARRAY_SIZE(preg_supply), 323 .consumer_supplies = &preg_supply[0], 324 }; 325 326 static struct charger_regulator chg_desc_regulator_data[] = { 327 { .regulator_name = "preg", }, 328 }; 329 330 static struct mfd_cell power_devs[] = { 331 {"88pm860x-battery", -1,}, 332 {"88pm860x-charger", -1,}, 333 {"88pm860x-preg", -1,}, 334 {"charger-manager", -1,}, 335 }; 336 337 static struct mfd_cell rtc_devs[] = { 338 {"88pm860x-rtc", -1,}, 339 }; 340 341 342 struct pm860x_irq_data { 343 int reg; 344 int mask_reg; 345 int enable; /* enable or not */ 346 int offs; /* bit offset in mask register */ 347 }; 348 349 static struct pm860x_irq_data pm860x_irqs[] = { 350 [PM8607_IRQ_ONKEY] = { 351 .reg = PM8607_INT_STATUS1, 352 .mask_reg = PM8607_INT_MASK_1, 353 .offs = 1 << 0, 354 }, 355 [PM8607_IRQ_EXTON] = { 356 .reg = PM8607_INT_STATUS1, 357 .mask_reg = PM8607_INT_MASK_1, 358 .offs = 1 << 1, 359 }, 360 [PM8607_IRQ_CHG] = { 361 .reg = PM8607_INT_STATUS1, 362 .mask_reg = PM8607_INT_MASK_1, 363 .offs = 1 << 2, 364 }, 365 [PM8607_IRQ_BAT] = { 366 .reg = PM8607_INT_STATUS1, 367 .mask_reg = PM8607_INT_MASK_1, 368 .offs = 1 << 3, 369 }, 370 [PM8607_IRQ_RTC] = { 371 .reg = PM8607_INT_STATUS1, 372 .mask_reg = PM8607_INT_MASK_1, 373 .offs = 1 << 4, 374 }, 375 [PM8607_IRQ_CC] = { 376 .reg = PM8607_INT_STATUS1, 377 .mask_reg = PM8607_INT_MASK_1, 378 .offs = 1 << 5, 379 }, 380 [PM8607_IRQ_VBAT] = { 381 .reg = PM8607_INT_STATUS2, 382 .mask_reg = PM8607_INT_MASK_2, 383 .offs = 1 << 0, 384 }, 385 [PM8607_IRQ_VCHG] = { 386 .reg = PM8607_INT_STATUS2, 387 .mask_reg = PM8607_INT_MASK_2, 388 .offs = 1 << 1, 389 }, 390 [PM8607_IRQ_VSYS] = { 391 .reg = PM8607_INT_STATUS2, 392 .mask_reg = PM8607_INT_MASK_2, 393 .offs = 1 << 2, 394 }, 395 [PM8607_IRQ_TINT] = { 396 .reg = PM8607_INT_STATUS2, 397 .mask_reg = PM8607_INT_MASK_2, 398 .offs = 1 << 3, 399 }, 400 [PM8607_IRQ_GPADC0] = { 401 .reg = PM8607_INT_STATUS2, 402 .mask_reg = PM8607_INT_MASK_2, 403 .offs = 1 << 4, 404 }, 405 [PM8607_IRQ_GPADC1] = { 406 .reg = PM8607_INT_STATUS2, 407 .mask_reg = PM8607_INT_MASK_2, 408 .offs = 1 << 5, 409 }, 410 [PM8607_IRQ_GPADC2] = { 411 .reg = PM8607_INT_STATUS2, 412 .mask_reg = PM8607_INT_MASK_2, 413 .offs = 1 << 6, 414 }, 415 [PM8607_IRQ_GPADC3] = { 416 .reg = PM8607_INT_STATUS2, 417 .mask_reg = PM8607_INT_MASK_2, 418 .offs = 1 << 7, 419 }, 420 [PM8607_IRQ_AUDIO_SHORT] = { 421 .reg = PM8607_INT_STATUS3, 422 .mask_reg = PM8607_INT_MASK_3, 423 .offs = 1 << 0, 424 }, 425 [PM8607_IRQ_PEN] = { 426 .reg = PM8607_INT_STATUS3, 427 .mask_reg = PM8607_INT_MASK_3, 428 .offs = 1 << 1, 429 }, 430 [PM8607_IRQ_HEADSET] = { 431 .reg = PM8607_INT_STATUS3, 432 .mask_reg = PM8607_INT_MASK_3, 433 .offs = 1 << 2, 434 }, 435 [PM8607_IRQ_HOOK] = { 436 .reg = PM8607_INT_STATUS3, 437 .mask_reg = PM8607_INT_MASK_3, 438 .offs = 1 << 3, 439 }, 440 [PM8607_IRQ_MICIN] = { 441 .reg = PM8607_INT_STATUS3, 442 .mask_reg = PM8607_INT_MASK_3, 443 .offs = 1 << 4, 444 }, 445 [PM8607_IRQ_CHG_FAIL] = { 446 .reg = PM8607_INT_STATUS3, 447 .mask_reg = PM8607_INT_MASK_3, 448 .offs = 1 << 5, 449 }, 450 [PM8607_IRQ_CHG_DONE] = { 451 .reg = PM8607_INT_STATUS3, 452 .mask_reg = PM8607_INT_MASK_3, 453 .offs = 1 << 6, 454 }, 455 [PM8607_IRQ_CHG_FAULT] = { 456 .reg = PM8607_INT_STATUS3, 457 .mask_reg = PM8607_INT_MASK_3, 458 .offs = 1 << 7, 459 }, 460 }; 461 462 static irqreturn_t pm860x_irq(int irq, void *data) 463 { 464 struct pm860x_chip *chip = data; 465 struct pm860x_irq_data *irq_data; 466 struct i2c_client *i2c; 467 int read_reg = -1, value = 0; 468 int i; 469 470 i2c = (chip->id == CHIP_PM8607) ? chip->client : chip->companion; 471 for (i = 0; i < ARRAY_SIZE(pm860x_irqs); i++) { 472 irq_data = &pm860x_irqs[i]; 473 if (read_reg != irq_data->reg) { 474 read_reg = irq_data->reg; 475 value = pm860x_reg_read(i2c, irq_data->reg); 476 } 477 if (value & irq_data->enable) 478 handle_nested_irq(chip->irq_base + i); 479 } 480 return IRQ_HANDLED; 481 } 482 483 static void pm860x_irq_lock(struct irq_data *data) 484 { 485 struct pm860x_chip *chip = irq_data_get_irq_chip_data(data); 486 487 mutex_lock(&chip->irq_lock); 488 } 489 490 static void pm860x_irq_sync_unlock(struct irq_data *data) 491 { 492 struct pm860x_chip *chip = irq_data_get_irq_chip_data(data); 493 struct pm860x_irq_data *irq_data; 494 struct i2c_client *i2c; 495 static unsigned char cached[3] = {0x0, 0x0, 0x0}; 496 unsigned char mask[3]; 497 int i; 498 499 i2c = (chip->id == CHIP_PM8607) ? chip->client : chip->companion; 500 /* Load cached value. In initial, all IRQs are masked */ 501 for (i = 0; i < 3; i++) 502 mask[i] = cached[i]; 503 for (i = 0; i < ARRAY_SIZE(pm860x_irqs); i++) { 504 irq_data = &pm860x_irqs[i]; 505 switch (irq_data->mask_reg) { 506 case PM8607_INT_MASK_1: 507 mask[0] &= ~irq_data->offs; 508 mask[0] |= irq_data->enable; 509 break; 510 case PM8607_INT_MASK_2: 511 mask[1] &= ~irq_data->offs; 512 mask[1] |= irq_data->enable; 513 break; 514 case PM8607_INT_MASK_3: 515 mask[2] &= ~irq_data->offs; 516 mask[2] |= irq_data->enable; 517 break; 518 default: 519 dev_err(chip->dev, "wrong IRQ\n"); 520 break; 521 } 522 } 523 /* update mask into registers */ 524 for (i = 0; i < 3; i++) { 525 if (mask[i] != cached[i]) { 526 cached[i] = mask[i]; 527 pm860x_reg_write(i2c, PM8607_INT_MASK_1 + i, mask[i]); 528 } 529 } 530 531 mutex_unlock(&chip->irq_lock); 532 } 533 534 static void pm860x_irq_enable(struct irq_data *data) 535 { 536 pm860x_irqs[data->hwirq].enable = pm860x_irqs[data->hwirq].offs; 537 } 538 539 static void pm860x_irq_disable(struct irq_data *data) 540 { 541 pm860x_irqs[data->hwirq].enable = 0; 542 } 543 544 static struct irq_chip pm860x_irq_chip = { 545 .name = "88pm860x", 546 .irq_bus_lock = pm860x_irq_lock, 547 .irq_bus_sync_unlock = pm860x_irq_sync_unlock, 548 .irq_enable = pm860x_irq_enable, 549 .irq_disable = pm860x_irq_disable, 550 }; 551 552 static int pm860x_irq_domain_map(struct irq_domain *d, unsigned int virq, 553 irq_hw_number_t hw) 554 { 555 irq_set_chip_data(virq, d->host_data); 556 irq_set_chip_and_handler(virq, &pm860x_irq_chip, handle_edge_irq); 557 irq_set_nested_thread(virq, 1); 558 irq_set_noprobe(virq); 559 return 0; 560 } 561 562 static const struct irq_domain_ops pm860x_irq_domain_ops = { 563 .map = pm860x_irq_domain_map, 564 .xlate = irq_domain_xlate_onetwocell, 565 }; 566 567 static int device_irq_init(struct pm860x_chip *chip, 568 struct pm860x_platform_data *pdata) 569 { 570 struct i2c_client *i2c = (chip->id == CHIP_PM8607) ? 571 chip->client : chip->companion; 572 unsigned char status_buf[INT_STATUS_NUM]; 573 unsigned long flags = IRQF_TRIGGER_FALLING | IRQF_ONESHOT; 574 int data, mask, ret = -EINVAL; 575 int nr_irqs, irq_base = -1; 576 struct device_node *node = i2c->dev.of_node; 577 578 mask = PM8607_B0_MISC1_INV_INT | PM8607_B0_MISC1_INT_CLEAR 579 | PM8607_B0_MISC1_INT_MASK; 580 data = 0; 581 chip->irq_mode = 0; 582 if (pdata && pdata->irq_mode) { 583 /* 584 * irq_mode defines the way of clearing interrupt. If it's 1, 585 * clear IRQ by write. Otherwise, clear it by read. 586 * This control bit is valid from 88PM8607 B0 steping. 587 */ 588 data |= PM8607_B0_MISC1_INT_CLEAR; 589 chip->irq_mode = 1; 590 } 591 ret = pm860x_set_bits(i2c, PM8607_B0_MISC1, mask, data); 592 if (ret < 0) 593 goto out; 594 595 /* mask all IRQs */ 596 memset(status_buf, 0, INT_STATUS_NUM); 597 ret = pm860x_bulk_write(i2c, PM8607_INT_MASK_1, 598 INT_STATUS_NUM, status_buf); 599 if (ret < 0) 600 goto out; 601 602 if (chip->irq_mode) { 603 /* clear interrupt status by write */ 604 memset(status_buf, 0xFF, INT_STATUS_NUM); 605 ret = pm860x_bulk_write(i2c, PM8607_INT_STATUS1, 606 INT_STATUS_NUM, status_buf); 607 } else { 608 /* clear interrupt status by read */ 609 ret = pm860x_bulk_read(i2c, PM8607_INT_STATUS1, 610 INT_STATUS_NUM, status_buf); 611 } 612 if (ret < 0) 613 goto out; 614 615 mutex_init(&chip->irq_lock); 616 617 if (pdata && pdata->irq_base) 618 irq_base = pdata->irq_base; 619 nr_irqs = ARRAY_SIZE(pm860x_irqs); 620 chip->irq_base = irq_alloc_descs(irq_base, 0, nr_irqs, 0); 621 if (chip->irq_base < 0) { 622 dev_err(&i2c->dev, "Failed to allocate interrupts, ret:%d\n", 623 chip->irq_base); 624 ret = -EBUSY; 625 goto out; 626 } 627 irq_domain_add_legacy(node, nr_irqs, chip->irq_base, 0, 628 &pm860x_irq_domain_ops, chip); 629 chip->core_irq = i2c->irq; 630 if (!chip->core_irq) 631 goto out; 632 633 ret = request_threaded_irq(chip->core_irq, NULL, pm860x_irq, 634 flags | IRQF_ONESHOT, "88pm860x", chip); 635 if (ret) { 636 dev_err(chip->dev, "Failed to request IRQ: %d\n", ret); 637 chip->core_irq = 0; 638 } 639 640 return 0; 641 out: 642 chip->core_irq = 0; 643 return ret; 644 } 645 646 static void device_irq_exit(struct pm860x_chip *chip) 647 { 648 if (chip->core_irq) 649 free_irq(chip->core_irq, chip); 650 } 651 652 int pm8606_osc_enable(struct pm860x_chip *chip, unsigned short client) 653 { 654 int ret = -EIO; 655 struct i2c_client *i2c = (chip->id == CHIP_PM8606) ? 656 chip->client : chip->companion; 657 658 dev_dbg(chip->dev, "%s(B): client=0x%x\n", __func__, client); 659 dev_dbg(chip->dev, "%s(B): vote=0x%x status=%d\n", 660 __func__, chip->osc_vote, 661 chip->osc_status); 662 663 mutex_lock(&chip->osc_lock); 664 /* Update voting status */ 665 chip->osc_vote |= client; 666 /* If reference group is off - turn on*/ 667 if (chip->osc_status != PM8606_REF_GP_OSC_ON) { 668 chip->osc_status = PM8606_REF_GP_OSC_UNKNOWN; 669 /* Enable Reference group Vsys */ 670 if (pm860x_set_bits(i2c, PM8606_VSYS, 671 PM8606_VSYS_EN, PM8606_VSYS_EN)) 672 goto out; 673 674 /*Enable Internal Oscillator */ 675 if (pm860x_set_bits(i2c, PM8606_MISC, 676 PM8606_MISC_OSC_EN, PM8606_MISC_OSC_EN)) 677 goto out; 678 /* Update status (only if writes succeed) */ 679 chip->osc_status = PM8606_REF_GP_OSC_ON; 680 } 681 mutex_unlock(&chip->osc_lock); 682 683 dev_dbg(chip->dev, "%s(A): vote=0x%x status=%d ret=%d\n", 684 __func__, chip->osc_vote, 685 chip->osc_status, ret); 686 return 0; 687 out: 688 mutex_unlock(&chip->osc_lock); 689 return ret; 690 } 691 EXPORT_SYMBOL(pm8606_osc_enable); 692 693 int pm8606_osc_disable(struct pm860x_chip *chip, unsigned short client) 694 { 695 int ret = -EIO; 696 struct i2c_client *i2c = (chip->id == CHIP_PM8606) ? 697 chip->client : chip->companion; 698 699 dev_dbg(chip->dev, "%s(B): client=0x%x\n", __func__, client); 700 dev_dbg(chip->dev, "%s(B): vote=0x%x status=%d\n", 701 __func__, chip->osc_vote, 702 chip->osc_status); 703 704 mutex_lock(&chip->osc_lock); 705 /* Update voting status */ 706 chip->osc_vote &= ~(client); 707 /* 708 * If reference group is off and this is the last client to release 709 * - turn off 710 */ 711 if ((chip->osc_status != PM8606_REF_GP_OSC_OFF) && 712 (chip->osc_vote == REF_GP_NO_CLIENTS)) { 713 chip->osc_status = PM8606_REF_GP_OSC_UNKNOWN; 714 /* Disable Reference group Vsys */ 715 if (pm860x_set_bits(i2c, PM8606_VSYS, PM8606_VSYS_EN, 0)) 716 goto out; 717 /* Disable Internal Oscillator */ 718 if (pm860x_set_bits(i2c, PM8606_MISC, PM8606_MISC_OSC_EN, 0)) 719 goto out; 720 chip->osc_status = PM8606_REF_GP_OSC_OFF; 721 } 722 mutex_unlock(&chip->osc_lock); 723 724 dev_dbg(chip->dev, "%s(A): vote=0x%x status=%d ret=%d\n", 725 __func__, chip->osc_vote, 726 chip->osc_status, ret); 727 return 0; 728 out: 729 mutex_unlock(&chip->osc_lock); 730 return ret; 731 } 732 EXPORT_SYMBOL(pm8606_osc_disable); 733 734 static void device_osc_init(struct i2c_client *i2c) 735 { 736 struct pm860x_chip *chip = i2c_get_clientdata(i2c); 737 738 mutex_init(&chip->osc_lock); 739 /* init portofino reference group voting and status */ 740 /* Disable Reference group Vsys */ 741 pm860x_set_bits(i2c, PM8606_VSYS, PM8606_VSYS_EN, 0); 742 /* Disable Internal Oscillator */ 743 pm860x_set_bits(i2c, PM8606_MISC, PM8606_MISC_OSC_EN, 0); 744 745 chip->osc_vote = REF_GP_NO_CLIENTS; 746 chip->osc_status = PM8606_REF_GP_OSC_OFF; 747 } 748 749 static void device_bk_init(struct pm860x_chip *chip, 750 struct pm860x_platform_data *pdata) 751 { 752 int ret, i; 753 754 if (pdata && pdata->backlight) { 755 if (pdata->num_backlights > ARRAY_SIZE(bk_devs)) 756 pdata->num_backlights = ARRAY_SIZE(bk_devs); 757 for (i = 0; i < pdata->num_backlights; i++) { 758 bk_devs[i].platform_data = &pdata->backlight[i]; 759 bk_devs[i].pdata_size = 760 sizeof(struct pm860x_backlight_pdata); 761 } 762 } 763 ret = mfd_add_devices(chip->dev, 0, bk_devs, 764 ARRAY_SIZE(bk_devs), NULL, 0, NULL); 765 if (ret < 0) 766 dev_err(chip->dev, "Failed to add backlight subdev\n"); 767 } 768 769 static void device_led_init(struct pm860x_chip *chip, 770 struct pm860x_platform_data *pdata) 771 { 772 int ret, i; 773 774 if (pdata && pdata->led) { 775 if (pdata->num_leds > ARRAY_SIZE(led_devs)) 776 pdata->num_leds = ARRAY_SIZE(led_devs); 777 for (i = 0; i < pdata->num_leds; i++) { 778 led_devs[i].platform_data = &pdata->led[i]; 779 led_devs[i].pdata_size = 780 sizeof(struct pm860x_led_pdata); 781 } 782 } 783 ret = mfd_add_devices(chip->dev, 0, led_devs, 784 ARRAY_SIZE(led_devs), NULL, 0, NULL); 785 if (ret < 0) { 786 dev_err(chip->dev, "Failed to add led subdev\n"); 787 return; 788 } 789 } 790 791 static void device_regulator_init(struct pm860x_chip *chip, 792 struct pm860x_platform_data *pdata) 793 { 794 int ret; 795 796 if (pdata == NULL) 797 return; 798 if (pdata->buck1) { 799 reg_devs[0].platform_data = pdata->buck1; 800 reg_devs[0].pdata_size = sizeof(struct regulator_init_data); 801 } 802 if (pdata->buck2) { 803 reg_devs[1].platform_data = pdata->buck2; 804 reg_devs[1].pdata_size = sizeof(struct regulator_init_data); 805 } 806 if (pdata->buck3) { 807 reg_devs[2].platform_data = pdata->buck3; 808 reg_devs[2].pdata_size = sizeof(struct regulator_init_data); 809 } 810 if (pdata->ldo1) { 811 reg_devs[3].platform_data = pdata->ldo1; 812 reg_devs[3].pdata_size = sizeof(struct regulator_init_data); 813 } 814 if (pdata->ldo2) { 815 reg_devs[4].platform_data = pdata->ldo2; 816 reg_devs[4].pdata_size = sizeof(struct regulator_init_data); 817 } 818 if (pdata->ldo3) { 819 reg_devs[5].platform_data = pdata->ldo3; 820 reg_devs[5].pdata_size = sizeof(struct regulator_init_data); 821 } 822 if (pdata->ldo4) { 823 reg_devs[6].platform_data = pdata->ldo4; 824 reg_devs[6].pdata_size = sizeof(struct regulator_init_data); 825 } 826 if (pdata->ldo5) { 827 reg_devs[7].platform_data = pdata->ldo5; 828 reg_devs[7].pdata_size = sizeof(struct regulator_init_data); 829 } 830 if (pdata->ldo6) { 831 reg_devs[8].platform_data = pdata->ldo6; 832 reg_devs[8].pdata_size = sizeof(struct regulator_init_data); 833 } 834 if (pdata->ldo7) { 835 reg_devs[9].platform_data = pdata->ldo7; 836 reg_devs[9].pdata_size = sizeof(struct regulator_init_data); 837 } 838 if (pdata->ldo8) { 839 reg_devs[10].platform_data = pdata->ldo8; 840 reg_devs[10].pdata_size = sizeof(struct regulator_init_data); 841 } 842 if (pdata->ldo9) { 843 reg_devs[11].platform_data = pdata->ldo9; 844 reg_devs[11].pdata_size = sizeof(struct regulator_init_data); 845 } 846 if (pdata->ldo10) { 847 reg_devs[12].platform_data = pdata->ldo10; 848 reg_devs[12].pdata_size = sizeof(struct regulator_init_data); 849 } 850 if (pdata->ldo12) { 851 reg_devs[13].platform_data = pdata->ldo12; 852 reg_devs[13].pdata_size = sizeof(struct regulator_init_data); 853 } 854 if (pdata->ldo_vibrator) { 855 reg_devs[14].platform_data = pdata->ldo_vibrator; 856 reg_devs[14].pdata_size = sizeof(struct regulator_init_data); 857 } 858 if (pdata->ldo14) { 859 reg_devs[15].platform_data = pdata->ldo14; 860 reg_devs[15].pdata_size = sizeof(struct regulator_init_data); 861 } 862 ret = mfd_add_devices(chip->dev, 0, reg_devs, 863 ARRAY_SIZE(reg_devs), NULL, 0, NULL); 864 if (ret < 0) { 865 dev_err(chip->dev, "Failed to add regulator subdev\n"); 866 return; 867 } 868 } 869 870 static void device_rtc_init(struct pm860x_chip *chip, 871 struct pm860x_platform_data *pdata) 872 { 873 int ret; 874 875 if (!pdata) 876 return; 877 878 rtc_devs[0].platform_data = pdata->rtc; 879 rtc_devs[0].pdata_size = sizeof(struct pm860x_rtc_pdata); 880 rtc_devs[0].num_resources = ARRAY_SIZE(rtc_resources); 881 rtc_devs[0].resources = &rtc_resources[0]; 882 ret = mfd_add_devices(chip->dev, 0, &rtc_devs[0], 883 ARRAY_SIZE(rtc_devs), &rtc_resources[0], 884 chip->irq_base, NULL); 885 if (ret < 0) 886 dev_err(chip->dev, "Failed to add rtc subdev\n"); 887 } 888 889 static void device_touch_init(struct pm860x_chip *chip, 890 struct pm860x_platform_data *pdata) 891 { 892 int ret; 893 894 if (pdata == NULL) 895 return; 896 897 touch_devs[0].platform_data = pdata->touch; 898 touch_devs[0].pdata_size = sizeof(struct pm860x_touch_pdata); 899 touch_devs[0].num_resources = ARRAY_SIZE(touch_resources); 900 touch_devs[0].resources = &touch_resources[0]; 901 ret = mfd_add_devices(chip->dev, 0, &touch_devs[0], 902 ARRAY_SIZE(touch_devs), &touch_resources[0], 903 chip->irq_base, NULL); 904 if (ret < 0) 905 dev_err(chip->dev, "Failed to add touch subdev\n"); 906 } 907 908 static void device_power_init(struct pm860x_chip *chip, 909 struct pm860x_platform_data *pdata) 910 { 911 int ret; 912 913 if (pdata == NULL) 914 return; 915 916 power_devs[0].platform_data = pdata->power; 917 power_devs[0].pdata_size = sizeof(struct pm860x_power_pdata); 918 power_devs[0].num_resources = ARRAY_SIZE(battery_resources); 919 power_devs[0].resources = &battery_resources[0], 920 ret = mfd_add_devices(chip->dev, 0, &power_devs[0], 1, 921 &battery_resources[0], chip->irq_base, NULL); 922 if (ret < 0) 923 dev_err(chip->dev, "Failed to add battery subdev\n"); 924 925 power_devs[1].platform_data = pdata->power; 926 power_devs[1].pdata_size = sizeof(struct pm860x_power_pdata); 927 power_devs[1].num_resources = ARRAY_SIZE(charger_resources); 928 power_devs[1].resources = &charger_resources[0], 929 ret = mfd_add_devices(chip->dev, 0, &power_devs[1], 1, 930 &charger_resources[0], chip->irq_base, NULL); 931 if (ret < 0) 932 dev_err(chip->dev, "Failed to add charger subdev\n"); 933 934 power_devs[2].platform_data = &preg_init_data; 935 power_devs[2].pdata_size = sizeof(struct regulator_init_data); 936 ret = mfd_add_devices(chip->dev, 0, &power_devs[2], 1, 937 NULL, chip->irq_base, NULL); 938 if (ret < 0) 939 dev_err(chip->dev, "Failed to add preg subdev\n"); 940 941 if (pdata->chg_desc) { 942 pdata->chg_desc->charger_regulators = 943 &chg_desc_regulator_data[0]; 944 pdata->chg_desc->num_charger_regulators = 945 ARRAY_SIZE(chg_desc_regulator_data), 946 power_devs[3].platform_data = pdata->chg_desc; 947 power_devs[3].pdata_size = sizeof(*pdata->chg_desc); 948 ret = mfd_add_devices(chip->dev, 0, &power_devs[3], 1, 949 NULL, chip->irq_base, NULL); 950 if (ret < 0) 951 dev_err(chip->dev, "Failed to add chg-manager subdev\n"); 952 } 953 } 954 955 static void device_onkey_init(struct pm860x_chip *chip, 956 struct pm860x_platform_data *pdata) 957 { 958 int ret; 959 960 onkey_devs[0].num_resources = ARRAY_SIZE(onkey_resources); 961 onkey_devs[0].resources = &onkey_resources[0], 962 ret = mfd_add_devices(chip->dev, 0, &onkey_devs[0], 963 ARRAY_SIZE(onkey_devs), &onkey_resources[0], 964 chip->irq_base, NULL); 965 if (ret < 0) 966 dev_err(chip->dev, "Failed to add onkey subdev\n"); 967 } 968 969 static void device_codec_init(struct pm860x_chip *chip, 970 struct pm860x_platform_data *pdata) 971 { 972 int ret; 973 974 codec_devs[0].num_resources = ARRAY_SIZE(codec_resources); 975 codec_devs[0].resources = &codec_resources[0], 976 ret = mfd_add_devices(chip->dev, 0, &codec_devs[0], 977 ARRAY_SIZE(codec_devs), &codec_resources[0], 0, 978 NULL); 979 if (ret < 0) 980 dev_err(chip->dev, "Failed to add codec subdev\n"); 981 } 982 983 static void device_8607_init(struct pm860x_chip *chip, 984 struct i2c_client *i2c, 985 struct pm860x_platform_data *pdata) 986 { 987 int data, ret; 988 989 ret = pm860x_reg_read(i2c, PM8607_CHIP_ID); 990 if (ret < 0) { 991 dev_err(chip->dev, "Failed to read CHIP ID: %d\n", ret); 992 goto out; 993 } 994 switch (ret & PM8607_VERSION_MASK) { 995 case 0x40: 996 case 0x50: 997 dev_info(chip->dev, "Marvell 88PM8607 (ID: %02x) detected\n", 998 ret); 999 break; 1000 default: 1001 dev_err(chip->dev, 1002 "Failed to detect Marvell 88PM8607. Chip ID: %02x\n", 1003 ret); 1004 goto out; 1005 } 1006 1007 ret = pm860x_reg_read(i2c, PM8607_BUCK3); 1008 if (ret < 0) { 1009 dev_err(chip->dev, "Failed to read BUCK3 register: %d\n", ret); 1010 goto out; 1011 } 1012 if (ret & PM8607_BUCK3_DOUBLE) 1013 chip->buck3_double = 1; 1014 1015 ret = pm860x_reg_read(i2c, PM8607_B0_MISC1); 1016 if (ret < 0) { 1017 dev_err(chip->dev, "Failed to read MISC1 register: %d\n", ret); 1018 goto out; 1019 } 1020 1021 if (pdata && (pdata->i2c_port == PI2C_PORT)) 1022 data = PM8607_B0_MISC1_PI2C; 1023 else 1024 data = 0; 1025 ret = pm860x_set_bits(i2c, PM8607_B0_MISC1, PM8607_B0_MISC1_PI2C, data); 1026 if (ret < 0) { 1027 dev_err(chip->dev, "Failed to access MISC1:%d\n", ret); 1028 goto out; 1029 } 1030 1031 ret = device_irq_init(chip, pdata); 1032 if (ret < 0) 1033 goto out; 1034 1035 device_regulator_init(chip, pdata); 1036 device_rtc_init(chip, pdata); 1037 device_onkey_init(chip, pdata); 1038 device_touch_init(chip, pdata); 1039 device_power_init(chip, pdata); 1040 device_codec_init(chip, pdata); 1041 out: 1042 return; 1043 } 1044 1045 static void device_8606_init(struct pm860x_chip *chip, 1046 struct i2c_client *i2c, 1047 struct pm860x_platform_data *pdata) 1048 { 1049 device_osc_init(i2c); 1050 device_bk_init(chip, pdata); 1051 device_led_init(chip, pdata); 1052 } 1053 1054 static int pm860x_device_init(struct pm860x_chip *chip, 1055 struct pm860x_platform_data *pdata) 1056 { 1057 chip->core_irq = 0; 1058 1059 switch (chip->id) { 1060 case CHIP_PM8606: 1061 device_8606_init(chip, chip->client, pdata); 1062 break; 1063 case CHIP_PM8607: 1064 device_8607_init(chip, chip->client, pdata); 1065 break; 1066 } 1067 1068 if (chip->companion) { 1069 switch (chip->id) { 1070 case CHIP_PM8607: 1071 device_8606_init(chip, chip->companion, pdata); 1072 break; 1073 case CHIP_PM8606: 1074 device_8607_init(chip, chip->companion, pdata); 1075 break; 1076 } 1077 } 1078 1079 return 0; 1080 } 1081 1082 static void pm860x_device_exit(struct pm860x_chip *chip) 1083 { 1084 device_irq_exit(chip); 1085 mfd_remove_devices(chip->dev); 1086 } 1087 1088 static int verify_addr(struct i2c_client *i2c) 1089 { 1090 unsigned short addr_8607[] = {0x30, 0x34}; 1091 unsigned short addr_8606[] = {0x10, 0x11}; 1092 int size, i; 1093 1094 if (i2c == NULL) 1095 return 0; 1096 size = ARRAY_SIZE(addr_8606); 1097 for (i = 0; i < size; i++) { 1098 if (i2c->addr == *(addr_8606 + i)) 1099 return CHIP_PM8606; 1100 } 1101 size = ARRAY_SIZE(addr_8607); 1102 for (i = 0; i < size; i++) { 1103 if (i2c->addr == *(addr_8607 + i)) 1104 return CHIP_PM8607; 1105 } 1106 return 0; 1107 } 1108 1109 static const struct regmap_config pm860x_regmap_config = { 1110 .reg_bits = 8, 1111 .val_bits = 8, 1112 }; 1113 1114 static int pm860x_dt_init(struct device_node *np, 1115 struct device *dev, 1116 struct pm860x_platform_data *pdata) 1117 { 1118 int ret; 1119 1120 pdata->irq_mode = of_property_read_bool(np, "marvell,88pm860x-irq-read-clr"); 1121 ret = of_property_read_u32(np, "marvell,88pm860x-slave-addr", 1122 &pdata->companion_addr); 1123 if (ret) { 1124 dev_err(dev, 1125 "Not found \"marvell,88pm860x-slave-addr\" property\n"); 1126 pdata->companion_addr = 0; 1127 } 1128 return 0; 1129 } 1130 1131 static int pm860x_probe(struct i2c_client *client) 1132 { 1133 struct pm860x_platform_data *pdata = dev_get_platdata(&client->dev); 1134 struct device_node *node = client->dev.of_node; 1135 struct pm860x_chip *chip; 1136 int ret; 1137 1138 if (node && !pdata) { 1139 /* parse DT to get platform data */ 1140 pdata = devm_kzalloc(&client->dev, 1141 sizeof(struct pm860x_platform_data), 1142 GFP_KERNEL); 1143 if (!pdata) 1144 return -ENOMEM; 1145 ret = pm860x_dt_init(node, &client->dev, pdata); 1146 if (ret) 1147 return ret; 1148 } else if (!pdata) { 1149 pr_info("No platform data in %s!\n", __func__); 1150 return -EINVAL; 1151 } 1152 1153 chip = devm_kzalloc(&client->dev, 1154 sizeof(struct pm860x_chip), GFP_KERNEL); 1155 if (chip == NULL) 1156 return -ENOMEM; 1157 1158 chip->id = verify_addr(client); 1159 chip->regmap = devm_regmap_init_i2c(client, &pm860x_regmap_config); 1160 if (IS_ERR(chip->regmap)) { 1161 ret = PTR_ERR(chip->regmap); 1162 dev_err(&client->dev, "Failed to allocate register map: %d\n", 1163 ret); 1164 return ret; 1165 } 1166 chip->client = client; 1167 i2c_set_clientdata(client, chip); 1168 chip->dev = &client->dev; 1169 1170 /* 1171 * Both client and companion client shares same platform driver. 1172 * Driver distinguishes them by pdata->companion_addr. 1173 * pdata->companion_addr is only assigned if companion chip exists. 1174 * At the same time, the companion_addr shouldn't equal to client 1175 * address. 1176 */ 1177 if (pdata->companion_addr && (pdata->companion_addr != client->addr)) { 1178 chip->companion_addr = pdata->companion_addr; 1179 chip->companion = i2c_new_dummy_device(chip->client->adapter, 1180 chip->companion_addr); 1181 if (IS_ERR(chip->companion)) { 1182 dev_err(&client->dev, 1183 "Failed to allocate I2C companion device\n"); 1184 return PTR_ERR(chip->companion); 1185 } 1186 chip->regmap_companion = regmap_init_i2c(chip->companion, 1187 &pm860x_regmap_config); 1188 if (IS_ERR(chip->regmap_companion)) { 1189 ret = PTR_ERR(chip->regmap_companion); 1190 dev_err(&chip->companion->dev, 1191 "Failed to allocate register map: %d\n", ret); 1192 i2c_unregister_device(chip->companion); 1193 return ret; 1194 } 1195 i2c_set_clientdata(chip->companion, chip); 1196 } 1197 1198 pm860x_device_init(chip, pdata); 1199 return 0; 1200 } 1201 1202 static void pm860x_remove(struct i2c_client *client) 1203 { 1204 struct pm860x_chip *chip = i2c_get_clientdata(client); 1205 1206 pm860x_device_exit(chip); 1207 if (chip->companion) { 1208 regmap_exit(chip->regmap_companion); 1209 i2c_unregister_device(chip->companion); 1210 } 1211 } 1212 1213 static int pm860x_suspend(struct device *dev) 1214 { 1215 struct i2c_client *client = to_i2c_client(dev); 1216 struct pm860x_chip *chip = i2c_get_clientdata(client); 1217 1218 if (device_may_wakeup(dev) && chip->wakeup_flag) 1219 enable_irq_wake(chip->core_irq); 1220 return 0; 1221 } 1222 1223 static int pm860x_resume(struct device *dev) 1224 { 1225 struct i2c_client *client = to_i2c_client(dev); 1226 struct pm860x_chip *chip = i2c_get_clientdata(client); 1227 1228 if (device_may_wakeup(dev) && chip->wakeup_flag) 1229 disable_irq_wake(chip->core_irq); 1230 return 0; 1231 } 1232 1233 static DEFINE_SIMPLE_DEV_PM_OPS(pm860x_pm_ops, pm860x_suspend, pm860x_resume); 1234 1235 static const struct i2c_device_id pm860x_id_table[] = { 1236 { "88PM860x", 0 }, 1237 {} 1238 }; 1239 MODULE_DEVICE_TABLE(i2c, pm860x_id_table); 1240 1241 static const struct of_device_id pm860x_dt_ids[] = { 1242 { .compatible = "marvell,88pm860x", }, 1243 {}, 1244 }; 1245 MODULE_DEVICE_TABLE(of, pm860x_dt_ids); 1246 1247 static struct i2c_driver pm860x_driver = { 1248 .driver = { 1249 .name = "88PM860x", 1250 .pm = pm_sleep_ptr(&pm860x_pm_ops), 1251 .of_match_table = pm860x_dt_ids, 1252 }, 1253 .probe = pm860x_probe, 1254 .remove = pm860x_remove, 1255 .id_table = pm860x_id_table, 1256 }; 1257 1258 static int __init pm860x_i2c_init(void) 1259 { 1260 int ret; 1261 1262 ret = i2c_add_driver(&pm860x_driver); 1263 if (ret != 0) 1264 pr_err("Failed to register 88PM860x I2C driver: %d\n", ret); 1265 return ret; 1266 } 1267 subsys_initcall(pm860x_i2c_init); 1268 1269 static void __exit pm860x_i2c_exit(void) 1270 { 1271 i2c_del_driver(&pm860x_driver); 1272 } 1273 module_exit(pm860x_i2c_exit); 1274 1275 MODULE_DESCRIPTION("PMIC Driver for Marvell 88PM860x"); 1276 MODULE_AUTHOR("Haojian Zhuang <haojian.zhuang@marvell.com>"); 1277