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 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 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 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 struct resource led0_resources[] = {
  46	/* RGB1 Red LED */
  47	{0xd, 0xd, "control", IORESOURCE_REG, },
  48	{0xc, 0xc, "blink",   IORESOURCE_REG, },
  49};
  50static struct resource led1_resources[] = {
  51	/* RGB1 Green LED */
  52	{0xe, 0xe, "control", IORESOURCE_REG, },
  53	{0xc, 0xc, "blink",   IORESOURCE_REG, },
  54};
  55static struct resource led2_resources[] = {
  56	/* RGB1 Blue LED */
  57	{0xf, 0xf, "control", IORESOURCE_REG, },
  58	{0xc, 0xc, "blink",   IORESOURCE_REG, },
  59};
  60static struct resource led3_resources[] = {
  61	/* RGB2 Red LED */
  62	{0x9, 0x9, "control", IORESOURCE_REG, },
  63	{0x8, 0x8, "blink",   IORESOURCE_REG, },
  64};
  65static struct resource led4_resources[] = {
  66	/* RGB2 Green LED */
  67	{0xa, 0xa, "control", IORESOURCE_REG, },
  68	{0x8, 0x8, "blink",   IORESOURCE_REG, },
  69};
  70static struct resource led5_resources[] = {
  71	/* RGB2 Blue LED */
  72	{0xb, 0xb, "control", IORESOURCE_REG, },
  73	{0x8, 0x8, "blink",   IORESOURCE_REG, },
  74};
  75
  76static struct resource buck1_resources[] = {
  77	{0x24, 0x24, "buck set", IORESOURCE_REG, },
  78};
  79static struct resource buck2_resources[] = {
  80	{0x25, 0x25, "buck set", IORESOURCE_REG, },
  81};
  82static struct resource buck3_resources[] = {
  83	{0x26, 0x26, "buck set", IORESOURCE_REG, },
  84};
  85static struct resource ldo1_resources[] = {
  86	{0x10, 0x10, "ldo set", IORESOURCE_REG, },
  87};
  88static struct resource ldo2_resources[] = {
  89	{0x11, 0x11, "ldo set", IORESOURCE_REG, },
  90};
  91static struct resource ldo3_resources[] = {
  92	{0x12, 0x12, "ldo set", IORESOURCE_REG, },
  93};
  94static struct resource ldo4_resources[] = {
  95	{0x13, 0x13, "ldo set", IORESOURCE_REG, },
  96};
  97static struct resource ldo5_resources[] = {
  98	{0x14, 0x14, "ldo set", IORESOURCE_REG, },
  99};
 100static struct resource ldo6_resources[] = {
 101	{0x15, 0x15, "ldo set", IORESOURCE_REG, },
 102};
 103static struct resource ldo7_resources[] = {
 104	{0x16, 0x16, "ldo set", IORESOURCE_REG, },
 105};
 106static struct resource ldo8_resources[] = {
 107	{0x17, 0x17, "ldo set", IORESOURCE_REG, },
 108};
 109static struct resource ldo9_resources[] = {
 110	{0x18, 0x18, "ldo set", IORESOURCE_REG, },
 111};
 112static struct resource ldo10_resources[] = {
 113	{0x19, 0x19, "ldo set", IORESOURCE_REG, },
 114};
 115static struct resource ldo12_resources[] = {
 116	{0x1a, 0x1a, "ldo set", IORESOURCE_REG, },
 117};
 118static struct resource ldo_vibrator_resources[] = {
 119	{0x28, 0x28, "ldo set", IORESOURCE_REG, },
 120};
 121static 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	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;
 641out:
 642	chip->core_irq = 0;
 643	return ret;
 644}
 645
 646static void device_irq_exit(struct pm860x_chip *chip)
 647{
 648	if (chip->core_irq)
 649		free_irq(chip->core_irq, chip);
 650}
 651
 652int 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;
 687out:
 688	mutex_unlock(&chip->osc_lock);
 689	return ret;
 690}
 691EXPORT_SYMBOL(pm8606_osc_enable);
 692
 693int 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;
 728out:
 729	mutex_unlock(&chip->osc_lock);
 730	return ret;
 731}
 732EXPORT_SYMBOL(pm8606_osc_disable);
 733
 734static 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
 749static 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
 769static 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
 791static 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
 870static 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
 889static 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
 908static 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
 955static 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
 969static 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
 983static 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);
1041out:
1042	return;
1043}
1044
1045static 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
1054static 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
1082static void pm860x_device_exit(struct pm860x_chip *chip)
1083{
1084	device_irq_exit(chip);
1085	mfd_remove_devices(chip->dev);
1086}
1087
1088static 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
1109static const struct regmap_config pm860x_regmap_config = {
1110	.reg_bits = 8,
1111	.val_bits = 8,
1112};
1113
1114static int pm860x_dt_init(struct device_node *np,
1115				    struct device *dev,
1116				    struct pm860x_platform_data *pdata)
1117{
1118	int ret;
1119
1120	if (of_get_property(np, "marvell,88pm860x-irq-read-clr", NULL))
1121		pdata->irq_mode = 1;
1122	ret = of_property_read_u32(np, "marvell,88pm860x-slave-addr",
1123				   &pdata->companion_addr);
1124	if (ret) {
1125		dev_err(dev,
1126			"Not found \"marvell,88pm860x-slave-addr\" property\n");
1127		pdata->companion_addr = 0;
1128	}
1129	return 0;
1130}
1131
1132static int pm860x_probe(struct i2c_client *client)
1133{
1134	struct pm860x_platform_data *pdata = dev_get_platdata(&client->dev);
1135	struct device_node *node = client->dev.of_node;
1136	struct pm860x_chip *chip;
1137	int ret;
1138
1139	if (node && !pdata) {
1140		/* parse DT to get platform data */
1141		pdata = devm_kzalloc(&client->dev,
1142				     sizeof(struct pm860x_platform_data),
1143				     GFP_KERNEL);
1144		if (!pdata)
1145			return -ENOMEM;
1146		ret = pm860x_dt_init(node, &client->dev, pdata);
1147		if (ret)
1148			return ret;
1149	} else if (!pdata) {
1150		pr_info("No platform data in %s!\n", __func__);
1151		return -EINVAL;
1152	}
1153
1154	chip = devm_kzalloc(&client->dev,
1155			    sizeof(struct pm860x_chip), GFP_KERNEL);
1156	if (chip == NULL)
1157		return -ENOMEM;
1158
1159	chip->id = verify_addr(client);
1160	chip->regmap = devm_regmap_init_i2c(client, &pm860x_regmap_config);
1161	if (IS_ERR(chip->regmap)) {
1162		ret = PTR_ERR(chip->regmap);
1163		dev_err(&client->dev, "Failed to allocate register map: %d\n",
1164				ret);
1165		return ret;
1166	}
1167	chip->client = client;
1168	i2c_set_clientdata(client, chip);
1169	chip->dev = &client->dev;
1170	dev_set_drvdata(chip->dev, chip);
1171
1172	/*
1173	 * Both client and companion client shares same platform driver.
1174	 * Driver distinguishes them by pdata->companion_addr.
1175	 * pdata->companion_addr is only assigned if companion chip exists.
1176	 * At the same time, the companion_addr shouldn't equal to client
1177	 * address.
1178	 */
1179	if (pdata->companion_addr && (pdata->companion_addr != client->addr)) {
1180		chip->companion_addr = pdata->companion_addr;
1181		chip->companion = i2c_new_dummy_device(chip->client->adapter,
1182						chip->companion_addr);
1183		if (IS_ERR(chip->companion)) {
1184			dev_err(&client->dev,
1185				"Failed to allocate I2C companion device\n");
1186			return PTR_ERR(chip->companion);
1187		}
1188		chip->regmap_companion = regmap_init_i2c(chip->companion,
1189							&pm860x_regmap_config);
1190		if (IS_ERR(chip->regmap_companion)) {
1191			ret = PTR_ERR(chip->regmap_companion);
1192			dev_err(&chip->companion->dev,
1193				"Failed to allocate register map: %d\n", ret);
1194			i2c_unregister_device(chip->companion);
1195			return ret;
1196		}
1197		i2c_set_clientdata(chip->companion, chip);
1198	}
1199
1200	pm860x_device_init(chip, pdata);
1201	return 0;
1202}
1203
1204static int pm860x_remove(struct i2c_client *client)
1205{
1206	struct pm860x_chip *chip = i2c_get_clientdata(client);
1207
1208	pm860x_device_exit(chip);
1209	if (chip->companion) {
1210		regmap_exit(chip->regmap_companion);
1211		i2c_unregister_device(chip->companion);
1212	}
1213	return 0;
1214}
1215
1216#ifdef CONFIG_PM_SLEEP
1217static int pm860x_suspend(struct device *dev)
1218{
1219	struct i2c_client *client = to_i2c_client(dev);
1220	struct pm860x_chip *chip = i2c_get_clientdata(client);
1221
1222	if (device_may_wakeup(dev) && chip->wakeup_flag)
1223		enable_irq_wake(chip->core_irq);
1224	return 0;
1225}
1226
1227static int pm860x_resume(struct device *dev)
1228{
1229	struct i2c_client *client = to_i2c_client(dev);
1230	struct pm860x_chip *chip = i2c_get_clientdata(client);
1231
1232	if (device_may_wakeup(dev) && chip->wakeup_flag)
1233		disable_irq_wake(chip->core_irq);
1234	return 0;
1235}
1236#endif
1237
1238static SIMPLE_DEV_PM_OPS(pm860x_pm_ops, pm860x_suspend, pm860x_resume);
1239
1240static const struct i2c_device_id pm860x_id_table[] = {
1241	{ "88PM860x", 0 },
1242	{}
1243};
1244MODULE_DEVICE_TABLE(i2c, pm860x_id_table);
1245
1246static const struct of_device_id pm860x_dt_ids[] = {
1247	{ .compatible = "marvell,88pm860x", },
1248	{},
1249};
1250MODULE_DEVICE_TABLE(of, pm860x_dt_ids);
1251
1252static struct i2c_driver pm860x_driver = {
1253	.driver	= {
1254		.name	= "88PM860x",
1255		.pm     = &pm860x_pm_ops,
1256		.of_match_table	= pm860x_dt_ids,
1257	},
1258	.probe_new	= pm860x_probe,
1259	.remove		= pm860x_remove,
1260	.id_table	= pm860x_id_table,
1261};
1262
1263static int __init pm860x_i2c_init(void)
1264{
1265	int ret;
1266
1267	ret = i2c_add_driver(&pm860x_driver);
1268	if (ret != 0)
1269		pr_err("Failed to register 88PM860x I2C driver: %d\n", ret);
1270	return ret;
1271}
1272subsys_initcall(pm860x_i2c_init);
1273
1274static void __exit pm860x_i2c_exit(void)
1275{
1276	i2c_del_driver(&pm860x_driver);
1277}
1278module_exit(pm860x_i2c_exit);
1279
1280MODULE_DESCRIPTION("PMIC Driver for Marvell 88PM860x");
1281MODULE_AUTHOR("Haojian Zhuang <haojian.zhuang@marvell.com>");
1282MODULE_LICENSE("GPL");