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88pm860x-core.c
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linux-6.19.14/drivers/mfd/88pm860x-core.c
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 29static 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}; 34static 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}; 39static 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 45static const struct resource led0_resources[] = { 46 /* RGB1 Red LED */ 47 {0xd, 0xd, "control", IORESOURCE_REG, }, 48 {0xc, 0xc, "blink", IORESOURCE_REG, }, 49}; 50static const struct resource led1_resources[] = { 51 /* RGB1 Green LED */ 52 {0xe, 0xe, "control", IORESOURCE_REG, }, 53 {0xc, 0xc, "blink", IORESOURCE_REG, }, 54}; 55static const struct resource led2_resources[] = { 56 /* RGB1 Blue LED */ 57 {0xf, 0xf, "control", IORESOURCE_REG, }, 58 {0xc, 0xc, "blink", IORESOURCE_REG, }, 59}; 60static const struct resource led3_resources[] = { 61 /* RGB2 Red LED */ 62 {0x9, 0x9, "control", IORESOURCE_REG, }, 63 {0x8, 0x8, "blink", IORESOURCE_REG, }, 64}; 65static const struct resource led4_resources[] = { 66 /* RGB2 Green LED */ 67 {0xa, 0xa, "control", IORESOURCE_REG, }, 68 {0x8, 0x8, "blink", IORESOURCE_REG, }, 69}; 70static const struct resource led5_resources[] = { 71 /* RGB2 Blue LED */ 72 {0xb, 0xb, "control", IORESOURCE_REG, }, 73 {0x8, 0x8, "blink", IORESOURCE_REG, }, 74}; 75 76static const struct resource buck1_resources[] = { 77 {0x24, 0x24, "buck set", IORESOURCE_REG, }, 78}; 79static const struct resource buck2_resources[] = { 80 {0x25, 0x25, "buck set", IORESOURCE_REG, }, 81}; 82static const struct resource buck3_resources[] = { 83 {0x26, 0x26, "buck set", IORESOURCE_REG, }, 84}; 85static const struct resource ldo1_resources[] = { 86 {0x10, 0x10, "ldo set", IORESOURCE_REG, }, 87}; 88static const struct resource ldo2_resources[] = { 89 {0x11, 0x11, "ldo set", IORESOURCE_REG, }, 90}; 91static const struct resource ldo3_resources[] = { 92 {0x12, 0x12, "ldo set", IORESOURCE_REG, }, 93}; 94static const struct resource ldo4_resources[] = { 95 {0x13, 0x13, "ldo set", IORESOURCE_REG, }, 96}; 97static const struct resource ldo5_resources[] = { 98 {0x14, 0x14, "ldo set", IORESOURCE_REG, }, 99}; 100static const struct resource ldo6_resources[] = { 101 {0x15, 0x15, "ldo set", IORESOURCE_REG, }, 102}; 103static const struct resource ldo7_resources[] = { 104 {0x16, 0x16, "ldo set", IORESOURCE_REG, }, 105}; 106static const struct resource ldo8_resources[] = { 107 {0x17, 0x17, "ldo set", IORESOURCE_REG, }, 108}; 109static const struct resource ldo9_resources[] = { 110 {0x18, 0x18, "ldo set", IORESOURCE_REG, }, 111}; 112static const struct resource ldo10_resources[] = { 113 {0x19, 0x19, "ldo set", IORESOURCE_REG, }, 114}; 115static const struct resource ldo12_resources[] = { 116 {0x1a, 0x1a, "ldo set", IORESOURCE_REG, }, 117}; 118static const struct resource ldo_vibrator_resources[] = { 119 {0x28, 0x28, "ldo set", IORESOURCE_REG, }, 120}; 121static const struct resource ldo14_resources[] = { 122 {0x1b, 0x1b, "ldo set", IORESOURCE_REG, }, 123}; 124 125static struct resource touch_resources[] = { 126 {PM8607_IRQ_PEN, PM8607_IRQ_PEN, "touch", IORESOURCE_IRQ,}, 127}; 128 129static struct resource onkey_resources[] = { 130 {PM8607_IRQ_ONKEY, PM8607_IRQ_ONKEY, "onkey", IORESOURCE_IRQ,}, 131}; 132 133static 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 145static 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 150static 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 164static struct resource rtc_resources[] = { 165 {PM8607_IRQ_RTC, PM8607_IRQ_RTC, "rtc", IORESOURCE_IRQ,}, 166}; 167 168static 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 187static 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 221static 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 305static struct mfd_cell touch_devs[] = { 306 {"88pm860x-touch", -1,}, 307}; 308 309static struct mfd_cell onkey_devs[] = { 310 {"88pm860x-onkey", -1,}, 311}; 312 313static struct mfd_cell codec_devs[] = { 314 {"88pm860x-codec", -1,}, 315}; 316 317static struct regulator_consumer_supply preg_supply[] = { 318 REGULATOR_SUPPLY("preg", "charger-manager"), 319}; 320 321static struct regulator_init_data preg_init_data = { 322 .num_consumer_supplies = ARRAY_SIZE(preg_supply), 323 .consumer_supplies = &preg_supply[0], 324}; 325 326static struct charger_regulator chg_desc_regulator_data[] = { 327 { .regulator_name = "preg", }, 328}; 329 330static struct mfd_cell power_devs[] = { 331 {"88pm860x-battery", -1,}, 332 {"88pm860x-charger", -1,}, 333 {"88pm860x-preg", -1,}, 334 {"charger-manager", -1,}, 335}; 336 337static struct mfd_cell rtc_devs[] = { 338 {"88pm860x-rtc", -1,}, 339}; 340 341 342struct 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 349static 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 462static 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 483static 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 490static 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 534static void pm860x_irq_enable(struct irq_data *data) 535{ 536 pm860x_irqs[data->hwirq].enable = pm860x_irqs[data->hwirq].offs; 537} 538 539static void pm860x_irq_disable(struct irq_data *data) 540{ 541 pm860x_irqs[data->hwirq].enable = 0; 542} 543 544static 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 552static 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 562static const struct irq_domain_ops pm860x_irq_domain_ops = { 563 .map = pm860x_irq_domain_map, 564 .xlate = irq_domain_xlate_onetwocell, 565}; 566 567static 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; 576 577 mask = PM8607_B0_MISC1_INV_INT | PM8607_B0_MISC1_INT_CLEAR 578 | PM8607_B0_MISC1_INT_MASK; 579 data = 0; 580 chip->irq_mode = 0; 581 if (pdata && pdata->irq_mode) { 582 /* 583 * irq_mode defines the way of clearing interrupt. If it's 1, 584 * clear IRQ by write. Otherwise, clear it by read. 585 * This control bit is valid from 88PM8607 B0 steping. 586 */ 587 data |= PM8607_B0_MISC1_INT_CLEAR; 588 chip->irq_mode = 1; 589 } 590 ret = pm860x_set_bits(i2c, PM8607_B0_MISC1, mask, data); 591 if (ret < 0) 592 goto out; 593 594 /* mask all IRQs */ 595 memset(status_buf, 0, INT_STATUS_NUM); 596 ret = pm860x_bulk_write(i2c, PM8607_INT_MASK_1, 597 INT_STATUS_NUM, status_buf); 598 if (ret < 0) 599 goto out; 600 601 if (chip->irq_mode) { 602 /* clear interrupt status by write */ 603 memset(status_buf, 0xFF, INT_STATUS_NUM); 604 ret = pm860x_bulk_write(i2c, PM8607_INT_STATUS1, 605 INT_STATUS_NUM, status_buf); 606 } else { 607 /* clear interrupt status by read */ 608 ret = pm860x_bulk_read(i2c, PM8607_INT_STATUS1, 609 INT_STATUS_NUM, status_buf); 610 } 611 if (ret < 0) 612 goto out; 613 614 mutex_init(&chip->irq_lock); 615 616 if (pdata && pdata->irq_base) 617 irq_base = pdata->irq_base; 618 nr_irqs = ARRAY_SIZE(pm860x_irqs); 619 chip->irq_base = irq_alloc_descs(irq_base, 0, nr_irqs, 0); 620 if (chip->irq_base < 0) { 621 dev_err(&i2c->dev, "Failed to allocate interrupts, ret:%d\n", 622 chip->irq_base); 623 ret = -EBUSY; 624 goto out; 625 } 626 irq_domain_create_legacy(dev_fwnode(&i2c->dev), nr_irqs, chip->irq_base, 0, 627 &pm860x_irq_domain_ops, chip); 628 chip->core_irq = i2c->irq; 629 if (!chip->core_irq) 630 goto out; 631 632 ret = request_threaded_irq(chip->core_irq, NULL, pm860x_irq, 633 flags | IRQF_ONESHOT, "88pm860x", chip); 634 if (ret) { 635 dev_err(chip->dev, "Failed to request IRQ: %d\n", ret); 636 chip->core_irq = 0; 637 } 638 639 return 0; 640out: 641 chip->core_irq = 0; 642 return ret; 643} 644 645static void device_irq_exit(struct pm860x_chip *chip) 646{ 647 if (chip->core_irq) 648 free_irq(chip->core_irq, chip); 649} 650 651int pm8606_osc_enable(struct pm860x_chip *chip, unsigned short client) 652{ 653 int ret = -EIO; 654 struct i2c_client *i2c = (chip->id == CHIP_PM8606) ? 655 chip->client : chip->companion; 656 657 dev_dbg(chip->dev, "%s(B): client=0x%x\n", __func__, client); 658 dev_dbg(chip->dev, "%s(B): vote=0x%x status=%d\n", 659 __func__, chip->osc_vote, 660 chip->osc_status); 661 662 mutex_lock(&chip->osc_lock); 663 /* Update voting status */ 664 chip->osc_vote |= client; 665 /* If reference group is off - turn on*/ 666 if (chip->osc_status != PM8606_REF_GP_OSC_ON) { 667 chip->osc_status = PM8606_REF_GP_OSC_UNKNOWN; 668 /* Enable Reference group Vsys */ 669 if (pm860x_set_bits(i2c, PM8606_VSYS, 670 PM8606_VSYS_EN, PM8606_VSYS_EN)) 671 goto out; 672 673 /*Enable Internal Oscillator */ 674 if (pm860x_set_bits(i2c, PM8606_MISC, 675 PM8606_MISC_OSC_EN, PM8606_MISC_OSC_EN)) 676 goto out; 677 /* Update status (only if writes succeed) */ 678 chip->osc_status = PM8606_REF_GP_OSC_ON; 679 } 680 mutex_unlock(&chip->osc_lock); 681 682 dev_dbg(chip->dev, "%s(A): vote=0x%x status=%d ret=%d\n", 683 __func__, chip->osc_vote, 684 chip->osc_status, ret); 685 return 0; 686out: 687 mutex_unlock(&chip->osc_lock); 688 return ret; 689} 690EXPORT_SYMBOL(pm8606_osc_enable); 691 692int pm8606_osc_disable(struct pm860x_chip *chip, unsigned short client) 693{ 694 int ret = -EIO; 695 struct i2c_client *i2c = (chip->id == CHIP_PM8606) ? 696 chip->client : chip->companion; 697 698 dev_dbg(chip->dev, "%s(B): client=0x%x\n", __func__, client); 699 dev_dbg(chip->dev, "%s(B): vote=0x%x status=%d\n", 700 __func__, chip->osc_vote, 701 chip->osc_status); 702 703 mutex_lock(&chip->osc_lock); 704 /* Update voting status */ 705 chip->osc_vote &= ~(client); 706 /* 707 * If reference group is off and this is the last client to release 708 * - turn off 709 */ 710 if ((chip->osc_status != PM8606_REF_GP_OSC_OFF) && 711 (chip->osc_vote == REF_GP_NO_CLIENTS)) { 712 chip->osc_status = PM8606_REF_GP_OSC_UNKNOWN; 713 /* Disable Reference group Vsys */ 714 if (pm860x_set_bits(i2c, PM8606_VSYS, PM8606_VSYS_EN, 0)) 715 goto out; 716 /* Disable Internal Oscillator */ 717 if (pm860x_set_bits(i2c, PM8606_MISC, PM8606_MISC_OSC_EN, 0)) 718 goto out; 719 chip->osc_status = PM8606_REF_GP_OSC_OFF; 720 } 721 mutex_unlock(&chip->osc_lock); 722 723 dev_dbg(chip->dev, "%s(A): vote=0x%x status=%d ret=%d\n", 724 __func__, chip->osc_vote, 725 chip->osc_status, ret); 726 return 0; 727out: 728 mutex_unlock(&chip->osc_lock); 729 return ret; 730} 731EXPORT_SYMBOL(pm8606_osc_disable); 732 733static void device_osc_init(struct i2c_client *i2c) 734{ 735 struct pm860x_chip *chip = i2c_get_clientdata(i2c); 736 737 mutex_init(&chip->osc_lock); 738 /* init portofino reference group voting and status */ 739 /* Disable Reference group Vsys */ 740 pm860x_set_bits(i2c, PM8606_VSYS, PM8606_VSYS_EN, 0); 741 /* Disable Internal Oscillator */ 742 pm860x_set_bits(i2c, PM8606_MISC, PM8606_MISC_OSC_EN, 0); 743 744 chip->osc_vote = REF_GP_NO_CLIENTS; 745 chip->osc_status = PM8606_REF_GP_OSC_OFF; 746} 747 748static void device_bk_init(struct pm860x_chip *chip, 749 struct pm860x_platform_data *pdata) 750{ 751 int ret, i; 752 753 if (pdata && pdata->backlight) { 754 if (pdata->num_backlights > ARRAY_SIZE(bk_devs)) 755 pdata->num_backlights = ARRAY_SIZE(bk_devs); 756 for (i = 0; i < pdata->num_backlights; i++) { 757 bk_devs[i].platform_data = &pdata->backlight[i]; 758 bk_devs[i].pdata_size = 759 sizeof(struct pm860x_backlight_pdata); 760 } 761 } 762 ret = mfd_add_devices(chip->dev, 0, bk_devs, 763 ARRAY_SIZE(bk_devs), NULL, 0, NULL); 764 if (ret < 0) 765 dev_err(chip->dev, "Failed to add backlight subdev\n"); 766} 767 768static void device_led_init(struct pm860x_chip *chip, 769 struct pm860x_platform_data *pdata) 770{ 771 int ret, i; 772 773 if (pdata && pdata->led) { 774 if (pdata->num_leds > ARRAY_SIZE(led_devs)) 775 pdata->num_leds = ARRAY_SIZE(led_devs); 776 for (i = 0; i < pdata->num_leds; i++) { 777 led_devs[i].platform_data = &pdata->led[i]; 778 led_devs[i].pdata_size = 779 sizeof(struct pm860x_led_pdata); 780 } 781 } 782 ret = mfd_add_devices(chip->dev, 0, led_devs, 783 ARRAY_SIZE(led_devs), NULL, 0, NULL); 784 if (ret < 0) { 785 dev_err(chip->dev, "Failed to add led subdev\n"); 786 return; 787 } 788} 789 790static void device_regulator_init(struct pm860x_chip *chip, 791 struct pm860x_platform_data *pdata) 792{ 793 int ret; 794 795 if (pdata == NULL) 796 return; 797 if (pdata->buck1) { 798 reg_devs[0].platform_data = pdata->buck1; 799 reg_devs[0].pdata_size = sizeof(struct regulator_init_data); 800 } 801 if (pdata->buck2) { 802 reg_devs[1].platform_data = pdata->buck2; 803 reg_devs[1].pdata_size = sizeof(struct regulator_init_data); 804 } 805 if (pdata->buck3) { 806 reg_devs[2].platform_data = pdata->buck3; 807 reg_devs[2].pdata_size = sizeof(struct regulator_init_data); 808 } 809 if (pdata->ldo1) { 810 reg_devs[3].platform_data = pdata->ldo1; 811 reg_devs[3].pdata_size = sizeof(struct regulator_init_data); 812 } 813 if (pdata->ldo2) { 814 reg_devs[4].platform_data = pdata->ldo2; 815 reg_devs[4].pdata_size = sizeof(struct regulator_init_data); 816 } 817 if (pdata->ldo3) { 818 reg_devs[5].platform_data = pdata->ldo3; 819 reg_devs[5].pdata_size = sizeof(struct regulator_init_data); 820 } 821 if (pdata->ldo4) { 822 reg_devs[6].platform_data = pdata->ldo4; 823 reg_devs[6].pdata_size = sizeof(struct regulator_init_data); 824 } 825 if (pdata->ldo5) { 826 reg_devs[7].platform_data = pdata->ldo5; 827 reg_devs[7].pdata_size = sizeof(struct regulator_init_data); 828 } 829 if (pdata->ldo6) { 830 reg_devs[8].platform_data = pdata->ldo6; 831 reg_devs[8].pdata_size = sizeof(struct regulator_init_data); 832 } 833 if (pdata->ldo7) { 834 reg_devs[9].platform_data = pdata->ldo7; 835 reg_devs[9].pdata_size = sizeof(struct regulator_init_data); 836 } 837 if (pdata->ldo8) { 838 reg_devs[10].platform_data = pdata->ldo8; 839 reg_devs[10].pdata_size = sizeof(struct regulator_init_data); 840 } 841 if (pdata->ldo9) { 842 reg_devs[11].platform_data = pdata->ldo9; 843 reg_devs[11].pdata_size = sizeof(struct regulator_init_data); 844 } 845 if (pdata->ldo10) { 846 reg_devs[12].platform_data = pdata->ldo10; 847 reg_devs[12].pdata_size = sizeof(struct regulator_init_data); 848 } 849 if (pdata->ldo12) { 850 reg_devs[13].platform_data = pdata->ldo12; 851 reg_devs[13].pdata_size = sizeof(struct regulator_init_data); 852 } 853 if (pdata->ldo_vibrator) { 854 reg_devs[14].platform_data = pdata->ldo_vibrator; 855 reg_devs[14].pdata_size = sizeof(struct regulator_init_data); 856 } 857 if (pdata->ldo14) { 858 reg_devs[15].platform_data = pdata->ldo14; 859 reg_devs[15].pdata_size = sizeof(struct regulator_init_data); 860 } 861 ret = mfd_add_devices(chip->dev, 0, reg_devs, 862 ARRAY_SIZE(reg_devs), NULL, 0, NULL); 863 if (ret < 0) { 864 dev_err(chip->dev, "Failed to add regulator subdev\n"); 865 return; 866 } 867} 868 869static void device_rtc_init(struct pm860x_chip *chip, 870 struct pm860x_platform_data *pdata) 871{ 872 int ret; 873 874 if (!pdata) 875 return; 876 877 rtc_devs[0].platform_data = pdata->rtc; 878 rtc_devs[0].pdata_size = sizeof(struct pm860x_rtc_pdata); 879 rtc_devs[0].num_resources = ARRAY_SIZE(rtc_resources); 880 rtc_devs[0].resources = &rtc_resources[0]; 881 ret = mfd_add_devices(chip->dev, 0, &rtc_devs[0], 882 ARRAY_SIZE(rtc_devs), &rtc_resources[0], 883 chip->irq_base, NULL); 884 if (ret < 0) 885 dev_err(chip->dev, "Failed to add rtc subdev\n"); 886} 887 888static void device_touch_init(struct pm860x_chip *chip, 889 struct pm860x_platform_data *pdata) 890{ 891 int ret; 892 893 if (pdata == NULL) 894 return; 895 896 touch_devs[0].platform_data = pdata->touch; 897 touch_devs[0].pdata_size = sizeof(struct pm860x_touch_pdata); 898 touch_devs[0].num_resources = ARRAY_SIZE(touch_resources); 899 touch_devs[0].resources = &touch_resources[0]; 900 ret = mfd_add_devices(chip->dev, 0, &touch_devs[0], 901 ARRAY_SIZE(touch_devs), &touch_resources[0], 902 chip->irq_base, NULL); 903 if (ret < 0) 904 dev_err(chip->dev, "Failed to add touch subdev\n"); 905} 906 907static void device_power_init(struct pm860x_chip *chip, 908 struct pm860x_platform_data *pdata) 909{ 910 int ret; 911 912 if (pdata == NULL) 913 return; 914 915 power_devs[0].platform_data = pdata->power; 916 power_devs[0].pdata_size = sizeof(struct pm860x_power_pdata); 917 power_devs[0].num_resources = ARRAY_SIZE(battery_resources); 918 power_devs[0].resources = &battery_resources[0]; 919 ret = mfd_add_devices(chip->dev, 0, &power_devs[0], 1, 920 &battery_resources[0], chip->irq_base, NULL); 921 if (ret < 0) 922 dev_err(chip->dev, "Failed to add battery subdev\n"); 923 924 power_devs[1].platform_data = pdata->power; 925 power_devs[1].pdata_size = sizeof(struct pm860x_power_pdata); 926 power_devs[1].num_resources = ARRAY_SIZE(charger_resources); 927 power_devs[1].resources = &charger_resources[0]; 928 ret = mfd_add_devices(chip->dev, 0, &power_devs[1], 1, 929 &charger_resources[0], chip->irq_base, NULL); 930 if (ret < 0) 931 dev_err(chip->dev, "Failed to add charger subdev\n"); 932 933 power_devs[2].platform_data = &preg_init_data; 934 power_devs[2].pdata_size = sizeof(struct regulator_init_data); 935 ret = mfd_add_devices(chip->dev, 0, &power_devs[2], 1, 936 NULL, chip->irq_base, NULL); 937 if (ret < 0) 938 dev_err(chip->dev, "Failed to add preg subdev\n"); 939 940 if (pdata->chg_desc) { 941 pdata->chg_desc->charger_regulators = 942 &chg_desc_regulator_data[0]; 943 pdata->chg_desc->num_charger_regulators = 944 ARRAY_SIZE(chg_desc_regulator_data); 945 power_devs[3].platform_data = pdata->chg_desc; 946 power_devs[3].pdata_size = sizeof(*pdata->chg_desc); 947 ret = mfd_add_devices(chip->dev, 0, &power_devs[3], 1, 948 NULL, chip->irq_base, NULL); 949 if (ret < 0) 950 dev_err(chip->dev, "Failed to add chg-manager subdev\n"); 951 } 952} 953 954static void device_onkey_init(struct pm860x_chip *chip, 955 struct pm860x_platform_data *pdata) 956{ 957 int ret; 958 959 onkey_devs[0].num_resources = ARRAY_SIZE(onkey_resources); 960 onkey_devs[0].resources = &onkey_resources[0]; 961 ret = mfd_add_devices(chip->dev, 0, &onkey_devs[0], 962 ARRAY_SIZE(onkey_devs), &onkey_resources[0], 963 chip->irq_base, NULL); 964 if (ret < 0) 965 dev_err(chip->dev, "Failed to add onkey subdev\n"); 966} 967 968static void device_codec_init(struct pm860x_chip *chip, 969 struct pm860x_platform_data *pdata) 970{ 971 int ret; 972 973 codec_devs[0].num_resources = ARRAY_SIZE(codec_resources); 974 codec_devs[0].resources = &codec_resources[0]; 975 ret = mfd_add_devices(chip->dev, 0, &codec_devs[0], 976 ARRAY_SIZE(codec_devs), &codec_resources[0], 0, 977 NULL); 978 if (ret < 0) 979 dev_err(chip->dev, "Failed to add codec subdev\n"); 980} 981 982static void device_8607_init(struct pm860x_chip *chip, 983 struct i2c_client *i2c, 984 struct pm860x_platform_data *pdata) 985{ 986 int data, ret; 987 988 ret = pm860x_reg_read(i2c, PM8607_CHIP_ID); 989 if (ret < 0) { 990 dev_err(chip->dev, "Failed to read CHIP ID: %d\n", ret); 991 goto out; 992 } 993 switch (ret & PM8607_VERSION_MASK) { 994 case 0x40: 995 case 0x50: 996 dev_info(chip->dev, "Marvell 88PM8607 (ID: %02x) detected\n", 997 ret); 998 break; 999 default: 1000 dev_err(chip->dev, 1001 "Failed to detect Marvell 88PM8607. Chip ID: %02x\n", 1002 ret); 1003 goto out; 1004 } 1005 1006 ret = pm860x_reg_read(i2c, PM8607_BUCK3); 1007 if (ret < 0) { 1008 dev_err(chip->dev, "Failed to read BUCK3 register: %d\n", ret); 1009 goto out; 1010 } 1011 if (ret & PM8607_BUCK3_DOUBLE) 1012 chip->buck3_double = 1; 1013 1014 ret = pm860x_reg_read(i2c, PM8607_B0_MISC1); 1015 if (ret < 0) { 1016 dev_err(chip->dev, "Failed to read MISC1 register: %d\n", ret); 1017 goto out; 1018 } 1019 1020 if (pdata && (pdata->i2c_port == PI2C_PORT)) 1021 data = PM8607_B0_MISC1_PI2C; 1022 else 1023 data = 0; 1024 ret = pm860x_set_bits(i2c, PM8607_B0_MISC1, PM8607_B0_MISC1_PI2C, data); 1025 if (ret < 0) { 1026 dev_err(chip->dev, "Failed to access MISC1:%d\n", ret); 1027 goto out; 1028 } 1029 1030 ret = device_irq_init(chip, pdata); 1031 if (ret < 0) 1032 goto out; 1033 1034 device_regulator_init(chip, pdata); 1035 device_rtc_init(chip, pdata); 1036 device_onkey_init(chip, pdata); 1037 device_touch_init(chip, pdata); 1038 device_power_init(chip, pdata); 1039 device_codec_init(chip, pdata); 1040out: 1041 return; 1042} 1043 1044static void device_8606_init(struct pm860x_chip *chip, 1045 struct i2c_client *i2c, 1046 struct pm860x_platform_data *pdata) 1047{ 1048 device_osc_init(i2c); 1049 device_bk_init(chip, pdata); 1050 device_led_init(chip, pdata); 1051} 1052 1053static int pm860x_device_init(struct pm860x_chip *chip, 1054 struct pm860x_platform_data *pdata) 1055{ 1056 chip->core_irq = 0; 1057 1058 switch (chip->id) { 1059 case CHIP_PM8606: 1060 device_8606_init(chip, chip->client, pdata); 1061 break; 1062 case CHIP_PM8607: 1063 device_8607_init(chip, chip->client, pdata); 1064 break; 1065 } 1066 1067 if (chip->companion) { 1068 switch (chip->id) { 1069 case CHIP_PM8607: 1070 device_8606_init(chip, chip->companion, pdata); 1071 break; 1072 case CHIP_PM8606: 1073 device_8607_init(chip, chip->companion, pdata); 1074 break; 1075 } 1076 } 1077 1078 return 0; 1079} 1080 1081static void pm860x_device_exit(struct pm860x_chip *chip) 1082{ 1083 device_irq_exit(chip); 1084 mfd_remove_devices(chip->dev); 1085} 1086 1087static int verify_addr(struct i2c_client *i2c) 1088{ 1089 unsigned short addr_8607[] = {0x30, 0x34}; 1090 unsigned short addr_8606[] = {0x10, 0x11}; 1091 int size, i; 1092 1093 if (i2c == NULL) 1094 return 0; 1095 size = ARRAY_SIZE(addr_8606); 1096 for (i = 0; i < size; i++) { 1097 if (i2c->addr == *(addr_8606 + i)) 1098 return CHIP_PM8606; 1099 } 1100 size = ARRAY_SIZE(addr_8607); 1101 for (i = 0; i < size; i++) { 1102 if (i2c->addr == *(addr_8607 + i)) 1103 return CHIP_PM8607; 1104 } 1105 return 0; 1106} 1107 1108static const struct regmap_config pm860x_regmap_config = { 1109 .reg_bits = 8, 1110 .val_bits = 8, 1111}; 1112 1113static int pm860x_dt_init(struct device_node *np, 1114 struct device *dev, 1115 struct pm860x_platform_data *pdata) 1116{ 1117 int ret; 1118 1119 pdata->irq_mode = of_property_read_bool(np, "marvell,88pm860x-irq-read-clr"); 1120 ret = of_property_read_u32(np, "marvell,88pm860x-slave-addr", 1121 &pdata->companion_addr); 1122 if (ret) { 1123 dev_err(dev, 1124 "Not found \"marvell,88pm860x-slave-addr\" property\n"); 1125 pdata->companion_addr = 0; 1126 } 1127 return 0; 1128} 1129 1130static int pm860x_probe(struct i2c_client *client) 1131{ 1132 struct pm860x_platform_data *pdata = dev_get_platdata(&client->dev); 1133 struct device_node *node = client->dev.of_node; 1134 struct pm860x_chip *chip; 1135 int ret; 1136 1137 if (node && !pdata) { 1138 /* parse DT to get platform data */ 1139 pdata = devm_kzalloc(&client->dev, 1140 sizeof(struct pm860x_platform_data), 1141 GFP_KERNEL); 1142 if (!pdata) 1143 return -ENOMEM; 1144 ret = pm860x_dt_init(node, &client->dev, pdata); 1145 if (ret) 1146 return ret; 1147 } else if (!pdata) { 1148 pr_info("No platform data in %s!\n", __func__); 1149 return -EINVAL; 1150 } 1151 1152 chip = devm_kzalloc(&client->dev, 1153 sizeof(struct pm860x_chip), GFP_KERNEL); 1154 if (chip == NULL) 1155 return -ENOMEM; 1156 1157 chip->id = verify_addr(client); 1158 chip->regmap = devm_regmap_init_i2c(client, &pm860x_regmap_config); 1159 if (IS_ERR(chip->regmap)) { 1160 ret = PTR_ERR(chip->regmap); 1161 dev_err(&client->dev, "Failed to allocate register map: %d\n", 1162 ret); 1163 return ret; 1164 } 1165 chip->client = client; 1166 i2c_set_clientdata(client, chip); 1167 chip->dev = &client->dev; 1168 1169 /* 1170 * Both client and companion client shares same platform driver. 1171 * Driver distinguishes them by pdata->companion_addr. 1172 * pdata->companion_addr is only assigned if companion chip exists. 1173 * At the same time, the companion_addr shouldn't equal to client 1174 * address. 1175 */ 1176 if (pdata->companion_addr && (pdata->companion_addr != client->addr)) { 1177 chip->companion_addr = pdata->companion_addr; 1178 chip->companion = i2c_new_dummy_device(chip->client->adapter, 1179 chip->companion_addr); 1180 if (IS_ERR(chip->companion)) { 1181 dev_err(&client->dev, 1182 "Failed to allocate I2C companion device\n"); 1183 return PTR_ERR(chip->companion); 1184 } 1185 chip->regmap_companion = regmap_init_i2c(chip->companion, 1186 &pm860x_regmap_config); 1187 if (IS_ERR(chip->regmap_companion)) { 1188 ret = PTR_ERR(chip->regmap_companion); 1189 dev_err(&chip->companion->dev, 1190 "Failed to allocate register map: %d\n", ret); 1191 i2c_unregister_device(chip->companion); 1192 return ret; 1193 } 1194 i2c_set_clientdata(chip->companion, chip); 1195 } 1196 1197 pm860x_device_init(chip, pdata); 1198 return 0; 1199} 1200 1201static void pm860x_remove(struct i2c_client *client) 1202{ 1203 struct pm860x_chip *chip = i2c_get_clientdata(client); 1204 1205 pm860x_device_exit(chip); 1206 if (chip->companion) { 1207 regmap_exit(chip->regmap_companion); 1208 i2c_unregister_device(chip->companion); 1209 } 1210} 1211 1212static int pm860x_suspend(struct device *dev) 1213{ 1214 struct i2c_client *client = to_i2c_client(dev); 1215 struct pm860x_chip *chip = i2c_get_clientdata(client); 1216 1217 if (device_may_wakeup(dev) && chip->wakeup_flag) 1218 enable_irq_wake(chip->core_irq); 1219 return 0; 1220} 1221 1222static int pm860x_resume(struct device *dev) 1223{ 1224 struct i2c_client *client = to_i2c_client(dev); 1225 struct pm860x_chip *chip = i2c_get_clientdata(client); 1226 1227 if (device_may_wakeup(dev) && chip->wakeup_flag) 1228 disable_irq_wake(chip->core_irq); 1229 return 0; 1230} 1231 1232static DEFINE_SIMPLE_DEV_PM_OPS(pm860x_pm_ops, pm860x_suspend, pm860x_resume); 1233 1234static const struct i2c_device_id pm860x_id_table[] = { 1235 { "88PM860x" }, 1236 {} 1237}; 1238MODULE_DEVICE_TABLE(i2c, pm860x_id_table); 1239 1240static const struct of_device_id pm860x_dt_ids[] = { 1241 { .compatible = "marvell,88pm860x", }, 1242 {}, 1243}; 1244MODULE_DEVICE_TABLE(of, pm860x_dt_ids); 1245 1246static struct i2c_driver pm860x_driver = { 1247 .driver = { 1248 .name = "88PM860x", 1249 .pm = pm_sleep_ptr(&pm860x_pm_ops), 1250 .of_match_table = pm860x_dt_ids, 1251 }, 1252 .probe = pm860x_probe, 1253 .remove = pm860x_remove, 1254 .id_table = pm860x_id_table, 1255}; 1256 1257static int __init pm860x_i2c_init(void) 1258{ 1259 int ret; 1260 1261 ret = i2c_add_driver(&pm860x_driver); 1262 if (ret != 0) 1263 pr_err("Failed to register 88PM860x I2C driver: %d\n", ret); 1264 return ret; 1265} 1266subsys_initcall(pm860x_i2c_init); 1267 1268static void __exit pm860x_i2c_exit(void) 1269{ 1270 i2c_del_driver(&pm860x_driver); 1271} 1272module_exit(pm860x_i2c_exit); 1273 1274MODULE_DESCRIPTION("PMIC Driver for Marvell 88PM860x"); 1275MODULE_AUTHOR("Haojian Zhuang <haojian.zhuang@marvell.com>");
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