wm831x-core.c 42.3 KB
Newer Older
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16
/*
 * wm831x-core.c  --  Device access for Wolfson WM831x PMICs
 *
 * Copyright 2009 Wolfson Microelectronics PLC.
 *
 * Author: Mark Brown <broonie@opensource.wolfsonmicro.com>
 *
 *  This program is free software; you can redistribute  it and/or modify it
 *  under  the terms of  the GNU General  Public License as published by the
 *  Free Software Foundation;  either version 2 of the  License, or (at your
 *  option) any later version.
 *
 */

#include <linux/kernel.h>
#include <linux/module.h>
M
Mark Brown 已提交
17 18
#include <linux/bcd.h>
#include <linux/delay.h>
19
#include <linux/mfd/core.h>
20
#include <linux/slab.h>
21
#include <linux/err.h>
22 23 24

#include <linux/mfd/wm831x/core.h>
#include <linux/mfd/wm831x/pdata.h>
M
Mark Brown 已提交
25
#include <linux/mfd/wm831x/irq.h>
M
Mark Brown 已提交
26
#include <linux/mfd/wm831x/auxadc.h>
M
Mark Brown 已提交
27
#include <linux/mfd/wm831x/otp.h>
28
#include <linux/mfd/wm831x/pmu.h>
29 30 31 32 33
#include <linux/mfd/wm831x/regulator.h>

/* Current settings - values are 2*2^(reg_val/4) microamps.  These are
 * exported since they are used by multiple drivers.
 */
M
Mark Brown 已提交
34
int wm831x_isinkv_values[WM831X_ISINK_MAX_ISEL + 1] = {
35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92
	2,
	2,
	3,
	3,
	4,
	5,
	6,
	7,
	8,
	10,
	11,
	13,
	16,
	19,
	23,
	27,
	32,
	38,
	45,
	54,
	64,
	76,
	91,
	108,
	128,
	152,
	181,
	215,
	256,
	304,
	362,
	431,
	512,
	609,
	724,
	861,
	1024,
	1218,
	1448,
	1722,
	2048,
	2435,
	2896,
	3444,
	4096,
	4871,
	5793,
	6889,
	8192,
	9742,
	11585,
	13777,
	16384,
	19484,
	23170,
	27554,
};
EXPORT_SYMBOL_GPL(wm831x_isinkv_values);
93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164

static int wm831x_reg_locked(struct wm831x *wm831x, unsigned short reg)
{
	if (!wm831x->locked)
		return 0;

	switch (reg) {
	case WM831X_WATCHDOG:
	case WM831X_DC4_CONTROL:
	case WM831X_ON_PIN_CONTROL:
	case WM831X_BACKUP_CHARGER_CONTROL:
	case WM831X_CHARGER_CONTROL_1:
	case WM831X_CHARGER_CONTROL_2:
		return 1;

	default:
		return 0;
	}
}

/**
 * wm831x_reg_unlock: Unlock user keyed registers
 *
 * The WM831x has a user key preventing writes to particularly
 * critical registers.  This function locks those registers,
 * allowing writes to them.
 */
void wm831x_reg_lock(struct wm831x *wm831x)
{
	int ret;

	ret = wm831x_reg_write(wm831x, WM831X_SECURITY_KEY, 0);
	if (ret == 0) {
		dev_vdbg(wm831x->dev, "Registers locked\n");

		mutex_lock(&wm831x->io_lock);
		WARN_ON(wm831x->locked);
		wm831x->locked = 1;
		mutex_unlock(&wm831x->io_lock);
	} else {
		dev_err(wm831x->dev, "Failed to lock registers: %d\n", ret);
	}

}
EXPORT_SYMBOL_GPL(wm831x_reg_lock);

/**
 * wm831x_reg_unlock: Unlock user keyed registers
 *
 * The WM831x has a user key preventing writes to particularly
 * critical registers.  This function locks those registers,
 * preventing spurious writes.
 */
int wm831x_reg_unlock(struct wm831x *wm831x)
{
	int ret;

	/* 0x9716 is the value required to unlock the registers */
	ret = wm831x_reg_write(wm831x, WM831X_SECURITY_KEY, 0x9716);
	if (ret == 0) {
		dev_vdbg(wm831x->dev, "Registers unlocked\n");

		mutex_lock(&wm831x->io_lock);
		WARN_ON(!wm831x->locked);
		wm831x->locked = 0;
		mutex_unlock(&wm831x->io_lock);
	}

	return ret;
}
EXPORT_SYMBOL_GPL(wm831x_reg_unlock);

165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 354 355 356 357 358 359 360 361 362 363 364 365 366 367 368 369 370 371 372 373 374 375 376 377 378 379 380 381 382 383 384 385 386 387 388 389 390 391 392 393 394 395 396 397 398 399 400 401 402 403 404 405 406 407 408 409 410 411 412 413 414 415 416 417 418 419 420 421 422 423 424 425 426 427 428 429 430 431 432 433 434 435 436 437 438 439 440 441 442 443 444 445 446 447 448 449 450 451 452 453 454 455 456 457 458 459 460 461 462 463 464 465 466 467 468 469 470 471 472 473 474 475 476 477 478 479 480 481 482 483 484 485 486 487 488 489 490 491 492 493 494 495 496 497 498 499 500 501 502 503 504 505 506 507 508 509 510
static bool wm831x_reg_readable(struct device *dev, unsigned int reg)
{
	switch (reg) {
	case WM831X_RESET_ID:
	case WM831X_REVISION:
	case WM831X_PARENT_ID:
	case WM831X_SYSVDD_CONTROL:
	case WM831X_THERMAL_MONITORING:
	case WM831X_POWER_STATE:
	case WM831X_WATCHDOG:
	case WM831X_ON_PIN_CONTROL:
	case WM831X_RESET_CONTROL:
	case WM831X_CONTROL_INTERFACE:
	case WM831X_SECURITY_KEY:
	case WM831X_SOFTWARE_SCRATCH:
	case WM831X_OTP_CONTROL:
	case WM831X_GPIO_LEVEL:
	case WM831X_SYSTEM_STATUS:
	case WM831X_ON_SOURCE:
	case WM831X_OFF_SOURCE:
	case WM831X_SYSTEM_INTERRUPTS:
	case WM831X_INTERRUPT_STATUS_1:
	case WM831X_INTERRUPT_STATUS_2:
	case WM831X_INTERRUPT_STATUS_3:
	case WM831X_INTERRUPT_STATUS_4:
	case WM831X_INTERRUPT_STATUS_5:
	case WM831X_IRQ_CONFIG:
	case WM831X_SYSTEM_INTERRUPTS_MASK:
	case WM831X_INTERRUPT_STATUS_1_MASK:
	case WM831X_INTERRUPT_STATUS_2_MASK:
	case WM831X_INTERRUPT_STATUS_3_MASK:
	case WM831X_INTERRUPT_STATUS_4_MASK:
	case WM831X_INTERRUPT_STATUS_5_MASK:
	case WM831X_RTC_WRITE_COUNTER:
	case WM831X_RTC_TIME_1:
	case WM831X_RTC_TIME_2:
	case WM831X_RTC_ALARM_1:
	case WM831X_RTC_ALARM_2:
	case WM831X_RTC_CONTROL:
	case WM831X_RTC_TRIM:
	case WM831X_TOUCH_CONTROL_1:
	case WM831X_TOUCH_CONTROL_2:
	case WM831X_TOUCH_DATA_X:
	case WM831X_TOUCH_DATA_Y:
	case WM831X_TOUCH_DATA_Z:
	case WM831X_AUXADC_DATA:
	case WM831X_AUXADC_CONTROL:
	case WM831X_AUXADC_SOURCE:
	case WM831X_COMPARATOR_CONTROL:
	case WM831X_COMPARATOR_1:
	case WM831X_COMPARATOR_2:
	case WM831X_COMPARATOR_3:
	case WM831X_COMPARATOR_4:
	case WM831X_GPIO1_CONTROL:
	case WM831X_GPIO2_CONTROL:
	case WM831X_GPIO3_CONTROL:
	case WM831X_GPIO4_CONTROL:
	case WM831X_GPIO5_CONTROL:
	case WM831X_GPIO6_CONTROL:
	case WM831X_GPIO7_CONTROL:
	case WM831X_GPIO8_CONTROL:
	case WM831X_GPIO9_CONTROL:
	case WM831X_GPIO10_CONTROL:
	case WM831X_GPIO11_CONTROL:
	case WM831X_GPIO12_CONTROL:
	case WM831X_GPIO13_CONTROL:
	case WM831X_GPIO14_CONTROL:
	case WM831X_GPIO15_CONTROL:
	case WM831X_GPIO16_CONTROL:
	case WM831X_CHARGER_CONTROL_1:
	case WM831X_CHARGER_CONTROL_2:
	case WM831X_CHARGER_STATUS:
	case WM831X_BACKUP_CHARGER_CONTROL:
	case WM831X_STATUS_LED_1:
	case WM831X_STATUS_LED_2:
	case WM831X_CURRENT_SINK_1:
	case WM831X_CURRENT_SINK_2:
	case WM831X_DCDC_ENABLE:
	case WM831X_LDO_ENABLE:
	case WM831X_DCDC_STATUS:
	case WM831X_LDO_STATUS:
	case WM831X_DCDC_UV_STATUS:
	case WM831X_LDO_UV_STATUS:
	case WM831X_DC1_CONTROL_1:
	case WM831X_DC1_CONTROL_2:
	case WM831X_DC1_ON_CONFIG:
	case WM831X_DC1_SLEEP_CONTROL:
	case WM831X_DC1_DVS_CONTROL:
	case WM831X_DC2_CONTROL_1:
	case WM831X_DC2_CONTROL_2:
	case WM831X_DC2_ON_CONFIG:
	case WM831X_DC2_SLEEP_CONTROL:
	case WM831X_DC2_DVS_CONTROL:
	case WM831X_DC3_CONTROL_1:
	case WM831X_DC3_CONTROL_2:
	case WM831X_DC3_ON_CONFIG:
	case WM831X_DC3_SLEEP_CONTROL:
	case WM831X_DC4_CONTROL:
	case WM831X_DC4_SLEEP_CONTROL:
	case WM831X_EPE1_CONTROL:
	case WM831X_EPE2_CONTROL:
	case WM831X_LDO1_CONTROL:
	case WM831X_LDO1_ON_CONTROL:
	case WM831X_LDO1_SLEEP_CONTROL:
	case WM831X_LDO2_CONTROL:
	case WM831X_LDO2_ON_CONTROL:
	case WM831X_LDO2_SLEEP_CONTROL:
	case WM831X_LDO3_CONTROL:
	case WM831X_LDO3_ON_CONTROL:
	case WM831X_LDO3_SLEEP_CONTROL:
	case WM831X_LDO4_CONTROL:
	case WM831X_LDO4_ON_CONTROL:
	case WM831X_LDO4_SLEEP_CONTROL:
	case WM831X_LDO5_CONTROL:
	case WM831X_LDO5_ON_CONTROL:
	case WM831X_LDO5_SLEEP_CONTROL:
	case WM831X_LDO6_CONTROL:
	case WM831X_LDO6_ON_CONTROL:
	case WM831X_LDO6_SLEEP_CONTROL:
	case WM831X_LDO7_CONTROL:
	case WM831X_LDO7_ON_CONTROL:
	case WM831X_LDO7_SLEEP_CONTROL:
	case WM831X_LDO8_CONTROL:
	case WM831X_LDO8_ON_CONTROL:
	case WM831X_LDO8_SLEEP_CONTROL:
	case WM831X_LDO9_CONTROL:
	case WM831X_LDO9_ON_CONTROL:
	case WM831X_LDO9_SLEEP_CONTROL:
	case WM831X_LDO10_CONTROL:
	case WM831X_LDO10_ON_CONTROL:
	case WM831X_LDO10_SLEEP_CONTROL:
	case WM831X_LDO11_ON_CONTROL:
	case WM831X_LDO11_SLEEP_CONTROL:
	case WM831X_POWER_GOOD_SOURCE_1:
	case WM831X_POWER_GOOD_SOURCE_2:
	case WM831X_CLOCK_CONTROL_1:
	case WM831X_CLOCK_CONTROL_2:
	case WM831X_FLL_CONTROL_1:
	case WM831X_FLL_CONTROL_2:
	case WM831X_FLL_CONTROL_3:
	case WM831X_FLL_CONTROL_4:
	case WM831X_FLL_CONTROL_5:
	case WM831X_UNIQUE_ID_1:
	case WM831X_UNIQUE_ID_2:
	case WM831X_UNIQUE_ID_3:
	case WM831X_UNIQUE_ID_4:
	case WM831X_UNIQUE_ID_5:
	case WM831X_UNIQUE_ID_6:
	case WM831X_UNIQUE_ID_7:
	case WM831X_UNIQUE_ID_8:
	case WM831X_FACTORY_OTP_ID:
	case WM831X_FACTORY_OTP_1:
	case WM831X_FACTORY_OTP_2:
	case WM831X_FACTORY_OTP_3:
	case WM831X_FACTORY_OTP_4:
	case WM831X_FACTORY_OTP_5:
	case WM831X_CUSTOMER_OTP_ID:
	case WM831X_DC1_OTP_CONTROL:
	case WM831X_DC2_OTP_CONTROL:
	case WM831X_DC3_OTP_CONTROL:
	case WM831X_LDO1_2_OTP_CONTROL:
	case WM831X_LDO3_4_OTP_CONTROL:
	case WM831X_LDO5_6_OTP_CONTROL:
	case WM831X_LDO7_8_OTP_CONTROL:
	case WM831X_LDO9_10_OTP_CONTROL:
	case WM831X_LDO11_EPE_CONTROL:
	case WM831X_GPIO1_OTP_CONTROL:
	case WM831X_GPIO2_OTP_CONTROL:
	case WM831X_GPIO3_OTP_CONTROL:
	case WM831X_GPIO4_OTP_CONTROL:
	case WM831X_GPIO5_OTP_CONTROL:
	case WM831X_GPIO6_OTP_CONTROL:
	case WM831X_DBE_CHECK_DATA:
		return true;
	default:
		return false;
	}
}

static bool wm831x_reg_writeable(struct device *dev, unsigned int reg)
{
	struct wm831x *wm831x = dev_get_drvdata(dev);

	if (wm831x_reg_locked(wm831x, reg))
		return false;

	switch (reg) {
	case WM831X_SYSVDD_CONTROL:
	case WM831X_THERMAL_MONITORING:
	case WM831X_POWER_STATE:
	case WM831X_WATCHDOG:
	case WM831X_ON_PIN_CONTROL:
	case WM831X_RESET_CONTROL:
	case WM831X_CONTROL_INTERFACE:
	case WM831X_SECURITY_KEY:
	case WM831X_SOFTWARE_SCRATCH:
	case WM831X_OTP_CONTROL:
	case WM831X_GPIO_LEVEL:
	case WM831X_INTERRUPT_STATUS_1:
	case WM831X_INTERRUPT_STATUS_2:
	case WM831X_INTERRUPT_STATUS_3:
	case WM831X_INTERRUPT_STATUS_4:
	case WM831X_INTERRUPT_STATUS_5:
	case WM831X_IRQ_CONFIG:
	case WM831X_SYSTEM_INTERRUPTS_MASK:
	case WM831X_INTERRUPT_STATUS_1_MASK:
	case WM831X_INTERRUPT_STATUS_2_MASK:
	case WM831X_INTERRUPT_STATUS_3_MASK:
	case WM831X_INTERRUPT_STATUS_4_MASK:
	case WM831X_INTERRUPT_STATUS_5_MASK:
	case WM831X_RTC_TIME_1:
	case WM831X_RTC_TIME_2:
	case WM831X_RTC_ALARM_1:
	case WM831X_RTC_ALARM_2:
	case WM831X_RTC_CONTROL:
	case WM831X_RTC_TRIM:
	case WM831X_TOUCH_CONTROL_1:
	case WM831X_TOUCH_CONTROL_2:
	case WM831X_AUXADC_CONTROL:
	case WM831X_AUXADC_SOURCE:
	case WM831X_COMPARATOR_CONTROL:
	case WM831X_COMPARATOR_1:
	case WM831X_COMPARATOR_2:
	case WM831X_COMPARATOR_3:
	case WM831X_COMPARATOR_4:
	case WM831X_GPIO1_CONTROL:
	case WM831X_GPIO2_CONTROL:
	case WM831X_GPIO3_CONTROL:
	case WM831X_GPIO4_CONTROL:
	case WM831X_GPIO5_CONTROL:
	case WM831X_GPIO6_CONTROL:
	case WM831X_GPIO7_CONTROL:
	case WM831X_GPIO8_CONTROL:
	case WM831X_GPIO9_CONTROL:
	case WM831X_GPIO10_CONTROL:
	case WM831X_GPIO11_CONTROL:
	case WM831X_GPIO12_CONTROL:
	case WM831X_GPIO13_CONTROL:
	case WM831X_GPIO14_CONTROL:
	case WM831X_GPIO15_CONTROL:
	case WM831X_GPIO16_CONTROL:
	case WM831X_CHARGER_CONTROL_1:
	case WM831X_CHARGER_CONTROL_2:
	case WM831X_CHARGER_STATUS:
	case WM831X_BACKUP_CHARGER_CONTROL:
	case WM831X_STATUS_LED_1:
	case WM831X_STATUS_LED_2:
	case WM831X_CURRENT_SINK_1:
	case WM831X_CURRENT_SINK_2:
	case WM831X_DCDC_ENABLE:
	case WM831X_LDO_ENABLE:
	case WM831X_DC1_CONTROL_1:
	case WM831X_DC1_CONTROL_2:
	case WM831X_DC1_ON_CONFIG:
	case WM831X_DC1_SLEEP_CONTROL:
	case WM831X_DC1_DVS_CONTROL:
	case WM831X_DC2_CONTROL_1:
	case WM831X_DC2_CONTROL_2:
	case WM831X_DC2_ON_CONFIG:
	case WM831X_DC2_SLEEP_CONTROL:
	case WM831X_DC2_DVS_CONTROL:
	case WM831X_DC3_CONTROL_1:
	case WM831X_DC3_CONTROL_2:
	case WM831X_DC3_ON_CONFIG:
	case WM831X_DC3_SLEEP_CONTROL:
	case WM831X_DC4_CONTROL:
	case WM831X_DC4_SLEEP_CONTROL:
	case WM831X_EPE1_CONTROL:
	case WM831X_EPE2_CONTROL:
	case WM831X_LDO1_CONTROL:
	case WM831X_LDO1_ON_CONTROL:
	case WM831X_LDO1_SLEEP_CONTROL:
	case WM831X_LDO2_CONTROL:
	case WM831X_LDO2_ON_CONTROL:
	case WM831X_LDO2_SLEEP_CONTROL:
	case WM831X_LDO3_CONTROL:
	case WM831X_LDO3_ON_CONTROL:
	case WM831X_LDO3_SLEEP_CONTROL:
	case WM831X_LDO4_CONTROL:
	case WM831X_LDO4_ON_CONTROL:
	case WM831X_LDO4_SLEEP_CONTROL:
	case WM831X_LDO5_CONTROL:
	case WM831X_LDO5_ON_CONTROL:
	case WM831X_LDO5_SLEEP_CONTROL:
	case WM831X_LDO6_CONTROL:
	case WM831X_LDO6_ON_CONTROL:
	case WM831X_LDO6_SLEEP_CONTROL:
	case WM831X_LDO7_CONTROL:
	case WM831X_LDO7_ON_CONTROL:
	case WM831X_LDO7_SLEEP_CONTROL:
	case WM831X_LDO8_CONTROL:
	case WM831X_LDO8_ON_CONTROL:
	case WM831X_LDO8_SLEEP_CONTROL:
	case WM831X_LDO9_CONTROL:
	case WM831X_LDO9_ON_CONTROL:
	case WM831X_LDO9_SLEEP_CONTROL:
	case WM831X_LDO10_CONTROL:
	case WM831X_LDO10_ON_CONTROL:
	case WM831X_LDO10_SLEEP_CONTROL:
	case WM831X_LDO11_ON_CONTROL:
	case WM831X_LDO11_SLEEP_CONTROL:
	case WM831X_POWER_GOOD_SOURCE_1:
	case WM831X_POWER_GOOD_SOURCE_2:
	case WM831X_CLOCK_CONTROL_1:
	case WM831X_CLOCK_CONTROL_2:
	case WM831X_FLL_CONTROL_1:
	case WM831X_FLL_CONTROL_2:
	case WM831X_FLL_CONTROL_3:
	case WM831X_FLL_CONTROL_4:
	case WM831X_FLL_CONTROL_5:
		return true;
	default:
		return false;
	}
}

static bool wm831x_reg_volatile(struct device *dev, unsigned int reg)
{
	switch (reg) {
	case WM831X_SYSTEM_STATUS:
	case WM831X_ON_SOURCE:
	case WM831X_OFF_SOURCE:
	case WM831X_GPIO_LEVEL:
	case WM831X_SYSTEM_INTERRUPTS:
	case WM831X_INTERRUPT_STATUS_1:
	case WM831X_INTERRUPT_STATUS_2:
	case WM831X_INTERRUPT_STATUS_3:
	case WM831X_INTERRUPT_STATUS_4:
	case WM831X_INTERRUPT_STATUS_5:
	case WM831X_RTC_TIME_1:
	case WM831X_RTC_TIME_2:
	case WM831X_TOUCH_DATA_X:
	case WM831X_TOUCH_DATA_Y:
	case WM831X_TOUCH_DATA_Z:
	case WM831X_AUXADC_DATA:
	case WM831X_CHARGER_STATUS:
	case WM831X_DCDC_STATUS:
	case WM831X_LDO_STATUS:
	case WM831X_DCDC_UV_STATUS:
	case WM831X_LDO_UV_STATUS:
		return true;
	default:
		return false;
	}
}

511 512 513 514 515 516 517 518
/**
 * wm831x_reg_read: Read a single WM831x register.
 *
 * @wm831x: Device to read from.
 * @reg: Register to read.
 */
int wm831x_reg_read(struct wm831x *wm831x, unsigned short reg)
{
519
	unsigned int val;
520 521
	int ret;

522
	ret = regmap_read(wm831x->regmap, reg, &val);
523 524 525 526 527 528 529 530 531 532 533 534 535 536 537 538 539 540 541

	if (ret < 0)
		return ret;
	else
		return val;
}
EXPORT_SYMBOL_GPL(wm831x_reg_read);

/**
 * wm831x_bulk_read: Read multiple WM831x registers
 *
 * @wm831x: Device to read from
 * @reg: First register
 * @count: Number of registers
 * @buf: Buffer to fill.
 */
int wm831x_bulk_read(struct wm831x *wm831x, unsigned short reg,
		     int count, u16 *buf)
{
542
	return regmap_bulk_read(wm831x->regmap, reg, buf, count);
543 544 545 546 547 548 549
}
EXPORT_SYMBOL_GPL(wm831x_bulk_read);

static int wm831x_write(struct wm831x *wm831x, unsigned short reg,
			int bytes, void *src)
{
	u16 *buf = src;
550
	int i, ret;
551 552 553 554 555 556 557 558 559 560

	BUG_ON(bytes % 2);
	BUG_ON(bytes <= 0);

	for (i = 0; i < bytes / 2; i++) {
		if (wm831x_reg_locked(wm831x, reg))
			return -EPERM;

		dev_vdbg(wm831x->dev, "Write %04x to R%d(0x%x)\n",
			 buf[i], reg + i, reg + i);
561
		ret = regmap_write(wm831x->regmap, reg + i, buf[i]);
562 563
		if (ret != 0)
			return ret;
564 565
	}

566
	return 0;
567 568 569 570 571 572 573 574 575 576 577 578 579 580 581 582 583 584 585 586 587 588 589 590 591 592 593 594 595 596 597 598 599 600 601 602 603 604 605
}

/**
 * wm831x_reg_write: Write a single WM831x register.
 *
 * @wm831x: Device to write to.
 * @reg: Register to write to.
 * @val: Value to write.
 */
int wm831x_reg_write(struct wm831x *wm831x, unsigned short reg,
		     unsigned short val)
{
	int ret;

	mutex_lock(&wm831x->io_lock);

	ret = wm831x_write(wm831x, reg, 2, &val);

	mutex_unlock(&wm831x->io_lock);

	return ret;
}
EXPORT_SYMBOL_GPL(wm831x_reg_write);

/**
 * wm831x_set_bits: Set the value of a bitfield in a WM831x register
 *
 * @wm831x: Device to write to.
 * @reg: Register to write to.
 * @mask: Mask of bits to set.
 * @val: Value to set (unshifted)
 */
int wm831x_set_bits(struct wm831x *wm831x, unsigned short reg,
		    unsigned short mask, unsigned short val)
{
	int ret;

	mutex_lock(&wm831x->io_lock);

606 607 608 609
	if (!wm831x_reg_locked(wm831x, reg))
		ret = regmap_update_bits(wm831x->regmap, reg, mask, val);
	else
		ret = -EPERM;
610 611 612 613 614 615 616 617 618 619 620

	mutex_unlock(&wm831x->io_lock);

	return ret;
}
EXPORT_SYMBOL_GPL(wm831x_set_bits);

static struct resource wm831x_dcdc1_resources[] = {
	{
		.start = WM831X_DC1_CONTROL_1,
		.end   = WM831X_DC1_DVS_CONTROL,
621
		.flags = IORESOURCE_REG,
622 623 624 625 626 627 628 629 630 631 632 633 634 635 636 637 638 639 640 641
	},
	{
		.name  = "UV",
		.start = WM831X_IRQ_UV_DC1,
		.end   = WM831X_IRQ_UV_DC1,
		.flags = IORESOURCE_IRQ,
	},
	{
		.name  = "HC",
		.start = WM831X_IRQ_HC_DC1,
		.end   = WM831X_IRQ_HC_DC1,
		.flags = IORESOURCE_IRQ,
	},
};


static struct resource wm831x_dcdc2_resources[] = {
	{
		.start = WM831X_DC2_CONTROL_1,
		.end   = WM831X_DC2_DVS_CONTROL,
642
		.flags = IORESOURCE_REG,
643 644 645 646 647 648 649 650 651 652 653 654 655 656 657 658 659 660 661
	},
	{
		.name  = "UV",
		.start = WM831X_IRQ_UV_DC2,
		.end   = WM831X_IRQ_UV_DC2,
		.flags = IORESOURCE_IRQ,
	},
	{
		.name  = "HC",
		.start = WM831X_IRQ_HC_DC2,
		.end   = WM831X_IRQ_HC_DC2,
		.flags = IORESOURCE_IRQ,
	},
};

static struct resource wm831x_dcdc3_resources[] = {
	{
		.start = WM831X_DC3_CONTROL_1,
		.end   = WM831X_DC3_SLEEP_CONTROL,
662
		.flags = IORESOURCE_REG,
663 664 665 666 667 668 669 670 671 672 673 674 675
	},
	{
		.name  = "UV",
		.start = WM831X_IRQ_UV_DC3,
		.end   = WM831X_IRQ_UV_DC3,
		.flags = IORESOURCE_IRQ,
	},
};

static struct resource wm831x_dcdc4_resources[] = {
	{
		.start = WM831X_DC4_CONTROL,
		.end   = WM831X_DC4_SLEEP_CONTROL,
676
		.flags = IORESOURCE_REG,
677 678 679 680 681 682 683 684 685
	},
	{
		.name  = "UV",
		.start = WM831X_IRQ_UV_DC4,
		.end   = WM831X_IRQ_UV_DC4,
		.flags = IORESOURCE_IRQ,
	},
};

M
Mark Brown 已提交
686 687 688 689
static struct resource wm8320_dcdc4_buck_resources[] = {
	{
		.start = WM831X_DC4_CONTROL,
		.end   = WM832X_DC4_SLEEP_CONTROL,
690
		.flags = IORESOURCE_REG,
M
Mark Brown 已提交
691 692 693 694 695 696 697 698 699
	},
	{
		.name  = "UV",
		.start = WM831X_IRQ_UV_DC4,
		.end   = WM831X_IRQ_UV_DC4,
		.flags = IORESOURCE_IRQ,
	},
};

700 701 702 703 704 705 706 707 708 709 710 711
static struct resource wm831x_gpio_resources[] = {
	{
		.start = WM831X_IRQ_GPIO_1,
		.end   = WM831X_IRQ_GPIO_16,
		.flags = IORESOURCE_IRQ,
	},
};

static struct resource wm831x_isink1_resources[] = {
	{
		.start = WM831X_CURRENT_SINK_1,
		.end   = WM831X_CURRENT_SINK_1,
712
		.flags = IORESOURCE_REG,
713 714 715 716 717 718 719 720 721 722 723 724
	},
	{
		.start = WM831X_IRQ_CS1,
		.end   = WM831X_IRQ_CS1,
		.flags = IORESOURCE_IRQ,
	},
};

static struct resource wm831x_isink2_resources[] = {
	{
		.start = WM831X_CURRENT_SINK_2,
		.end   = WM831X_CURRENT_SINK_2,
725
		.flags = IORESOURCE_REG,
726 727 728 729 730 731 732 733 734 735 736 737
	},
	{
		.start = WM831X_IRQ_CS2,
		.end   = WM831X_IRQ_CS2,
		.flags = IORESOURCE_IRQ,
	},
};

static struct resource wm831x_ldo1_resources[] = {
	{
		.start = WM831X_LDO1_CONTROL,
		.end   = WM831X_LDO1_SLEEP_CONTROL,
738
		.flags = IORESOURCE_REG,
739 740 741 742 743 744 745 746 747 748 749 750 751
	},
	{
		.name  = "UV",
		.start = WM831X_IRQ_UV_LDO1,
		.end   = WM831X_IRQ_UV_LDO1,
		.flags = IORESOURCE_IRQ,
	},
};

static struct resource wm831x_ldo2_resources[] = {
	{
		.start = WM831X_LDO2_CONTROL,
		.end   = WM831X_LDO2_SLEEP_CONTROL,
752
		.flags = IORESOURCE_REG,
753 754 755 756 757 758 759 760 761 762 763 764 765
	},
	{
		.name  = "UV",
		.start = WM831X_IRQ_UV_LDO2,
		.end   = WM831X_IRQ_UV_LDO2,
		.flags = IORESOURCE_IRQ,
	},
};

static struct resource wm831x_ldo3_resources[] = {
	{
		.start = WM831X_LDO3_CONTROL,
		.end   = WM831X_LDO3_SLEEP_CONTROL,
766
		.flags = IORESOURCE_REG,
767 768 769 770 771 772 773 774 775 776 777 778 779
	},
	{
		.name  = "UV",
		.start = WM831X_IRQ_UV_LDO3,
		.end   = WM831X_IRQ_UV_LDO3,
		.flags = IORESOURCE_IRQ,
	},
};

static struct resource wm831x_ldo4_resources[] = {
	{
		.start = WM831X_LDO4_CONTROL,
		.end   = WM831X_LDO4_SLEEP_CONTROL,
780
		.flags = IORESOURCE_REG,
781 782 783 784 785 786 787 788 789 790 791 792 793
	},
	{
		.name  = "UV",
		.start = WM831X_IRQ_UV_LDO4,
		.end   = WM831X_IRQ_UV_LDO4,
		.flags = IORESOURCE_IRQ,
	},
};

static struct resource wm831x_ldo5_resources[] = {
	{
		.start = WM831X_LDO5_CONTROL,
		.end   = WM831X_LDO5_SLEEP_CONTROL,
794
		.flags = IORESOURCE_REG,
795 796 797 798 799 800 801 802 803 804 805 806 807
	},
	{
		.name  = "UV",
		.start = WM831X_IRQ_UV_LDO5,
		.end   = WM831X_IRQ_UV_LDO5,
		.flags = IORESOURCE_IRQ,
	},
};

static struct resource wm831x_ldo6_resources[] = {
	{
		.start = WM831X_LDO6_CONTROL,
		.end   = WM831X_LDO6_SLEEP_CONTROL,
808
		.flags = IORESOURCE_REG,
809 810 811 812 813 814 815 816 817 818 819 820 821
	},
	{
		.name  = "UV",
		.start = WM831X_IRQ_UV_LDO6,
		.end   = WM831X_IRQ_UV_LDO6,
		.flags = IORESOURCE_IRQ,
	},
};

static struct resource wm831x_ldo7_resources[] = {
	{
		.start = WM831X_LDO7_CONTROL,
		.end   = WM831X_LDO7_SLEEP_CONTROL,
822
		.flags = IORESOURCE_REG,
823 824 825 826 827 828 829 830 831 832 833 834 835
	},
	{
		.name  = "UV",
		.start = WM831X_IRQ_UV_LDO7,
		.end   = WM831X_IRQ_UV_LDO7,
		.flags = IORESOURCE_IRQ,
	},
};

static struct resource wm831x_ldo8_resources[] = {
	{
		.start = WM831X_LDO8_CONTROL,
		.end   = WM831X_LDO8_SLEEP_CONTROL,
836
		.flags = IORESOURCE_REG,
837 838 839 840 841 842 843 844 845 846 847 848 849
	},
	{
		.name  = "UV",
		.start = WM831X_IRQ_UV_LDO8,
		.end   = WM831X_IRQ_UV_LDO8,
		.flags = IORESOURCE_IRQ,
	},
};

static struct resource wm831x_ldo9_resources[] = {
	{
		.start = WM831X_LDO9_CONTROL,
		.end   = WM831X_LDO9_SLEEP_CONTROL,
850
		.flags = IORESOURCE_REG,
851 852 853 854 855 856 857 858 859 860 861 862 863
	},
	{
		.name  = "UV",
		.start = WM831X_IRQ_UV_LDO9,
		.end   = WM831X_IRQ_UV_LDO9,
		.flags = IORESOURCE_IRQ,
	},
};

static struct resource wm831x_ldo10_resources[] = {
	{
		.start = WM831X_LDO10_CONTROL,
		.end   = WM831X_LDO10_SLEEP_CONTROL,
864
		.flags = IORESOURCE_REG,
865 866 867 868 869 870 871 872 873 874 875 876 877
	},
	{
		.name  = "UV",
		.start = WM831X_IRQ_UV_LDO10,
		.end   = WM831X_IRQ_UV_LDO10,
		.flags = IORESOURCE_IRQ,
	},
};

static struct resource wm831x_ldo11_resources[] = {
	{
		.start = WM831X_LDO11_ON_CONTROL,
		.end   = WM831X_LDO11_SLEEP_CONTROL,
878
		.flags = IORESOURCE_REG,
879 880 881 882 883 884 885 886 887 888 889 890 891 892 893 894 895 896 897 898 899 900 901 902 903 904 905 906 907 908 909 910 911 912 913 914 915 916 917 918 919 920 921 922 923 924 925 926 927 928 929 930 931 932 933 934 935 936 937 938 939 940 941 942 943 944 945 946 947 948 949 950 951 952 953 954 955 956 957 958 959 960 961 962 963 964 965 966 967 968 969 970 971 972 973 974 975 976 977 978
	},
};

static struct resource wm831x_on_resources[] = {
	{
		.start = WM831X_IRQ_ON,
		.end   = WM831X_IRQ_ON,
		.flags = IORESOURCE_IRQ,
	},
};


static struct resource wm831x_power_resources[] = {
	{
		.name = "SYSLO",
		.start = WM831X_IRQ_PPM_SYSLO,
		.end   = WM831X_IRQ_PPM_SYSLO,
		.flags = IORESOURCE_IRQ,
	},
	{
		.name = "PWR SRC",
		.start = WM831X_IRQ_PPM_PWR_SRC,
		.end   = WM831X_IRQ_PPM_PWR_SRC,
		.flags = IORESOURCE_IRQ,
	},
	{
		.name = "USB CURR",
		.start = WM831X_IRQ_PPM_USB_CURR,
		.end   = WM831X_IRQ_PPM_USB_CURR,
		.flags = IORESOURCE_IRQ,
	},
	{
		.name = "BATT HOT",
		.start = WM831X_IRQ_CHG_BATT_HOT,
		.end   = WM831X_IRQ_CHG_BATT_HOT,
		.flags = IORESOURCE_IRQ,
	},
	{
		.name = "BATT COLD",
		.start = WM831X_IRQ_CHG_BATT_COLD,
		.end   = WM831X_IRQ_CHG_BATT_COLD,
		.flags = IORESOURCE_IRQ,
	},
	{
		.name = "BATT FAIL",
		.start = WM831X_IRQ_CHG_BATT_FAIL,
		.end   = WM831X_IRQ_CHG_BATT_FAIL,
		.flags = IORESOURCE_IRQ,
	},
	{
		.name = "OV",
		.start = WM831X_IRQ_CHG_OV,
		.end   = WM831X_IRQ_CHG_OV,
		.flags = IORESOURCE_IRQ,
	},
	{
		.name = "END",
		.start = WM831X_IRQ_CHG_END,
		.end   = WM831X_IRQ_CHG_END,
		.flags = IORESOURCE_IRQ,
	},
	{
		.name = "TO",
		.start = WM831X_IRQ_CHG_TO,
		.end   = WM831X_IRQ_CHG_TO,
		.flags = IORESOURCE_IRQ,
	},
	{
		.name = "MODE",
		.start = WM831X_IRQ_CHG_MODE,
		.end   = WM831X_IRQ_CHG_MODE,
		.flags = IORESOURCE_IRQ,
	},
	{
		.name = "START",
		.start = WM831X_IRQ_CHG_START,
		.end   = WM831X_IRQ_CHG_START,
		.flags = IORESOURCE_IRQ,
	},
};

static struct resource wm831x_rtc_resources[] = {
	{
		.name = "PER",
		.start = WM831X_IRQ_RTC_PER,
		.end   = WM831X_IRQ_RTC_PER,
		.flags = IORESOURCE_IRQ,
	},
	{
		.name = "ALM",
		.start = WM831X_IRQ_RTC_ALM,
		.end   = WM831X_IRQ_RTC_ALM,
		.flags = IORESOURCE_IRQ,
	},
};

static struct resource wm831x_status1_resources[] = {
	{
		.start = WM831X_STATUS_LED_1,
		.end   = WM831X_STATUS_LED_1,
979
		.flags = IORESOURCE_REG,
980 981 982 983 984 985 986
	},
};

static struct resource wm831x_status2_resources[] = {
	{
		.start = WM831X_STATUS_LED_2,
		.end   = WM831X_STATUS_LED_2,
987
		.flags = IORESOURCE_REG,
988 989 990 991 992 993 994 995 996 997 998 999 1000 1001 1002 1003 1004 1005 1006 1007 1008 1009 1010 1011 1012 1013 1014
	},
};

static struct resource wm831x_touch_resources[] = {
	{
		.name = "TCHPD",
		.start = WM831X_IRQ_TCHPD,
		.end   = WM831X_IRQ_TCHPD,
		.flags = IORESOURCE_IRQ,
	},
	{
		.name = "TCHDATA",
		.start = WM831X_IRQ_TCHDATA,
		.end   = WM831X_IRQ_TCHDATA,
		.flags = IORESOURCE_IRQ,
	},
};

static struct resource wm831x_wdt_resources[] = {
	{
		.start = WM831X_IRQ_WDOG_TO,
		.end   = WM831X_IRQ_WDOG_TO,
		.flags = IORESOURCE_IRQ,
	},
};

static struct mfd_cell wm8310_devs[] = {
1015 1016 1017
	{
		.name = "wm831x-backup",
	},
1018 1019 1020 1021 1022 1023 1024 1025 1026 1027 1028 1029 1030 1031 1032 1033 1034 1035 1036 1037 1038 1039 1040 1041
	{
		.name = "wm831x-buckv",
		.id = 1,
		.num_resources = ARRAY_SIZE(wm831x_dcdc1_resources),
		.resources = wm831x_dcdc1_resources,
	},
	{
		.name = "wm831x-buckv",
		.id = 2,
		.num_resources = ARRAY_SIZE(wm831x_dcdc2_resources),
		.resources = wm831x_dcdc2_resources,
	},
	{
		.name = "wm831x-buckp",
		.id = 3,
		.num_resources = ARRAY_SIZE(wm831x_dcdc3_resources),
		.resources = wm831x_dcdc3_resources,
	},
	{
		.name = "wm831x-boostp",
		.id = 4,
		.num_resources = ARRAY_SIZE(wm831x_dcdc4_resources),
		.resources = wm831x_dcdc4_resources,
	},
1042 1043 1044
	{
		.name = "wm831x-clk",
	},
1045 1046 1047 1048 1049 1050 1051 1052 1053 1054 1055 1056 1057 1058 1059 1060 1061 1062 1063 1064 1065 1066 1067 1068 1069 1070 1071 1072 1073 1074 1075 1076 1077 1078 1079 1080 1081 1082 1083 1084 1085 1086 1087 1088 1089 1090 1091 1092 1093 1094 1095 1096 1097 1098 1099 1100 1101 1102 1103 1104 1105 1106 1107 1108 1109 1110 1111 1112 1113 1114 1115 1116 1117 1118 1119 1120 1121 1122 1123 1124 1125 1126 1127 1128 1129 1130 1131 1132 1133 1134 1135 1136 1137 1138 1139 1140 1141 1142 1143 1144 1145 1146 1147 1148 1149 1150 1151 1152 1153 1154 1155 1156 1157 1158 1159 1160 1161 1162 1163 1164 1165 1166 1167 1168
	{
		.name = "wm831x-epe",
		.id = 1,
	},
	{
		.name = "wm831x-epe",
		.id = 2,
	},
	{
		.name = "wm831x-gpio",
		.num_resources = ARRAY_SIZE(wm831x_gpio_resources),
		.resources = wm831x_gpio_resources,
	},
	{
		.name = "wm831x-hwmon",
	},
	{
		.name = "wm831x-isink",
		.id = 1,
		.num_resources = ARRAY_SIZE(wm831x_isink1_resources),
		.resources = wm831x_isink1_resources,
	},
	{
		.name = "wm831x-isink",
		.id = 2,
		.num_resources = ARRAY_SIZE(wm831x_isink2_resources),
		.resources = wm831x_isink2_resources,
	},
	{
		.name = "wm831x-ldo",
		.id = 1,
		.num_resources = ARRAY_SIZE(wm831x_ldo1_resources),
		.resources = wm831x_ldo1_resources,
	},
	{
		.name = "wm831x-ldo",
		.id = 2,
		.num_resources = ARRAY_SIZE(wm831x_ldo2_resources),
		.resources = wm831x_ldo2_resources,
	},
	{
		.name = "wm831x-ldo",
		.id = 3,
		.num_resources = ARRAY_SIZE(wm831x_ldo3_resources),
		.resources = wm831x_ldo3_resources,
	},
	{
		.name = "wm831x-ldo",
		.id = 4,
		.num_resources = ARRAY_SIZE(wm831x_ldo4_resources),
		.resources = wm831x_ldo4_resources,
	},
	{
		.name = "wm831x-ldo",
		.id = 5,
		.num_resources = ARRAY_SIZE(wm831x_ldo5_resources),
		.resources = wm831x_ldo5_resources,
	},
	{
		.name = "wm831x-ldo",
		.id = 6,
		.num_resources = ARRAY_SIZE(wm831x_ldo6_resources),
		.resources = wm831x_ldo6_resources,
	},
	{
		.name = "wm831x-aldo",
		.id = 7,
		.num_resources = ARRAY_SIZE(wm831x_ldo7_resources),
		.resources = wm831x_ldo7_resources,
	},
	{
		.name = "wm831x-aldo",
		.id = 8,
		.num_resources = ARRAY_SIZE(wm831x_ldo8_resources),
		.resources = wm831x_ldo8_resources,
	},
	{
		.name = "wm831x-aldo",
		.id = 9,
		.num_resources = ARRAY_SIZE(wm831x_ldo9_resources),
		.resources = wm831x_ldo9_resources,
	},
	{
		.name = "wm831x-aldo",
		.id = 10,
		.num_resources = ARRAY_SIZE(wm831x_ldo10_resources),
		.resources = wm831x_ldo10_resources,
	},
	{
		.name = "wm831x-alive-ldo",
		.id = 11,
		.num_resources = ARRAY_SIZE(wm831x_ldo11_resources),
		.resources = wm831x_ldo11_resources,
	},
	{
		.name = "wm831x-on",
		.num_resources = ARRAY_SIZE(wm831x_on_resources),
		.resources = wm831x_on_resources,
	},
	{
		.name = "wm831x-power",
		.num_resources = ARRAY_SIZE(wm831x_power_resources),
		.resources = wm831x_power_resources,
	},
	{
		.name = "wm831x-status",
		.id = 1,
		.num_resources = ARRAY_SIZE(wm831x_status1_resources),
		.resources = wm831x_status1_resources,
	},
	{
		.name = "wm831x-status",
		.id = 2,
		.num_resources = ARRAY_SIZE(wm831x_status2_resources),
		.resources = wm831x_status2_resources,
	},
	{
		.name = "wm831x-watchdog",
		.num_resources = ARRAY_SIZE(wm831x_wdt_resources),
		.resources = wm831x_wdt_resources,
	},
};

static struct mfd_cell wm8311_devs[] = {
1169 1170 1171
	{
		.name = "wm831x-backup",
	},
1172 1173 1174 1175 1176 1177 1178 1179 1180 1181 1182 1183 1184 1185 1186 1187 1188 1189 1190 1191 1192 1193 1194 1195
	{
		.name = "wm831x-buckv",
		.id = 1,
		.num_resources = ARRAY_SIZE(wm831x_dcdc1_resources),
		.resources = wm831x_dcdc1_resources,
	},
	{
		.name = "wm831x-buckv",
		.id = 2,
		.num_resources = ARRAY_SIZE(wm831x_dcdc2_resources),
		.resources = wm831x_dcdc2_resources,
	},
	{
		.name = "wm831x-buckp",
		.id = 3,
		.num_resources = ARRAY_SIZE(wm831x_dcdc3_resources),
		.resources = wm831x_dcdc3_resources,
	},
	{
		.name = "wm831x-boostp",
		.id = 4,
		.num_resources = ARRAY_SIZE(wm831x_dcdc4_resources),
		.resources = wm831x_dcdc4_resources,
	},
1196 1197 1198
	{
		.name = "wm831x-clk",
	},
1199 1200 1201 1202 1203 1204 1205 1206 1207 1208 1209 1210 1211 1212 1213 1214 1215 1216 1217 1218 1219 1220 1221 1222 1223 1224 1225 1226 1227 1228 1229 1230 1231 1232 1233 1234 1235 1236 1237 1238 1239 1240 1241 1242 1243 1244 1245 1246 1247 1248 1249 1250 1251 1252 1253 1254 1255 1256 1257 1258 1259 1260 1261 1262 1263 1264 1265 1266 1267 1268 1269 1270 1271 1272 1273 1274 1275 1276 1277 1278 1279 1280 1281 1282 1283 1284 1285 1286 1287 1288 1289 1290 1291 1292 1293 1294 1295 1296 1297 1298
	{
		.name = "wm831x-epe",
		.id = 1,
	},
	{
		.name = "wm831x-epe",
		.id = 2,
	},
	{
		.name = "wm831x-gpio",
		.num_resources = ARRAY_SIZE(wm831x_gpio_resources),
		.resources = wm831x_gpio_resources,
	},
	{
		.name = "wm831x-hwmon",
	},
	{
		.name = "wm831x-isink",
		.id = 1,
		.num_resources = ARRAY_SIZE(wm831x_isink1_resources),
		.resources = wm831x_isink1_resources,
	},
	{
		.name = "wm831x-isink",
		.id = 2,
		.num_resources = ARRAY_SIZE(wm831x_isink2_resources),
		.resources = wm831x_isink2_resources,
	},
	{
		.name = "wm831x-ldo",
		.id = 1,
		.num_resources = ARRAY_SIZE(wm831x_ldo1_resources),
		.resources = wm831x_ldo1_resources,
	},
	{
		.name = "wm831x-ldo",
		.id = 2,
		.num_resources = ARRAY_SIZE(wm831x_ldo2_resources),
		.resources = wm831x_ldo2_resources,
	},
	{
		.name = "wm831x-ldo",
		.id = 3,
		.num_resources = ARRAY_SIZE(wm831x_ldo3_resources),
		.resources = wm831x_ldo3_resources,
	},
	{
		.name = "wm831x-ldo",
		.id = 4,
		.num_resources = ARRAY_SIZE(wm831x_ldo4_resources),
		.resources = wm831x_ldo4_resources,
	},
	{
		.name = "wm831x-ldo",
		.id = 5,
		.num_resources = ARRAY_SIZE(wm831x_ldo5_resources),
		.resources = wm831x_ldo5_resources,
	},
	{
		.name = "wm831x-aldo",
		.id = 7,
		.num_resources = ARRAY_SIZE(wm831x_ldo7_resources),
		.resources = wm831x_ldo7_resources,
	},
	{
		.name = "wm831x-alive-ldo",
		.id = 11,
		.num_resources = ARRAY_SIZE(wm831x_ldo11_resources),
		.resources = wm831x_ldo11_resources,
	},
	{
		.name = "wm831x-on",
		.num_resources = ARRAY_SIZE(wm831x_on_resources),
		.resources = wm831x_on_resources,
	},
	{
		.name = "wm831x-power",
		.num_resources = ARRAY_SIZE(wm831x_power_resources),
		.resources = wm831x_power_resources,
	},
	{
		.name = "wm831x-status",
		.id = 1,
		.num_resources = ARRAY_SIZE(wm831x_status1_resources),
		.resources = wm831x_status1_resources,
	},
	{
		.name = "wm831x-status",
		.id = 2,
		.num_resources = ARRAY_SIZE(wm831x_status2_resources),
		.resources = wm831x_status2_resources,
	},
	{
		.name = "wm831x-watchdog",
		.num_resources = ARRAY_SIZE(wm831x_wdt_resources),
		.resources = wm831x_wdt_resources,
	},
};

static struct mfd_cell wm8312_devs[] = {
1299 1300 1301
	{
		.name = "wm831x-backup",
	},
1302 1303 1304 1305 1306 1307 1308 1309 1310 1311 1312 1313 1314 1315 1316 1317 1318 1319 1320 1321 1322 1323 1324 1325
	{
		.name = "wm831x-buckv",
		.id = 1,
		.num_resources = ARRAY_SIZE(wm831x_dcdc1_resources),
		.resources = wm831x_dcdc1_resources,
	},
	{
		.name = "wm831x-buckv",
		.id = 2,
		.num_resources = ARRAY_SIZE(wm831x_dcdc2_resources),
		.resources = wm831x_dcdc2_resources,
	},
	{
		.name = "wm831x-buckp",
		.id = 3,
		.num_resources = ARRAY_SIZE(wm831x_dcdc3_resources),
		.resources = wm831x_dcdc3_resources,
	},
	{
		.name = "wm831x-boostp",
		.id = 4,
		.num_resources = ARRAY_SIZE(wm831x_dcdc4_resources),
		.resources = wm831x_dcdc4_resources,
	},
1326 1327 1328
	{
		.name = "wm831x-clk",
	},
1329 1330 1331 1332 1333 1334 1335 1336 1337 1338 1339 1340 1341 1342 1343 1344 1345 1346 1347 1348 1349 1350 1351 1352 1353 1354 1355 1356 1357 1358 1359 1360 1361 1362 1363 1364 1365 1366 1367 1368 1369 1370 1371 1372 1373 1374 1375 1376 1377 1378 1379 1380 1381 1382 1383 1384 1385 1386 1387 1388 1389 1390 1391 1392 1393 1394 1395 1396 1397 1398 1399 1400 1401 1402 1403 1404 1405 1406 1407 1408 1409 1410 1411 1412 1413 1414 1415 1416 1417 1418 1419 1420 1421 1422 1423 1424 1425 1426 1427 1428 1429 1430 1431 1432 1433 1434 1435 1436 1437 1438 1439 1440 1441 1442 1443 1444 1445 1446 1447 1448 1449 1450 1451
	{
		.name = "wm831x-epe",
		.id = 1,
	},
	{
		.name = "wm831x-epe",
		.id = 2,
	},
	{
		.name = "wm831x-gpio",
		.num_resources = ARRAY_SIZE(wm831x_gpio_resources),
		.resources = wm831x_gpio_resources,
	},
	{
		.name = "wm831x-hwmon",
	},
	{
		.name = "wm831x-isink",
		.id = 1,
		.num_resources = ARRAY_SIZE(wm831x_isink1_resources),
		.resources = wm831x_isink1_resources,
	},
	{
		.name = "wm831x-isink",
		.id = 2,
		.num_resources = ARRAY_SIZE(wm831x_isink2_resources),
		.resources = wm831x_isink2_resources,
	},
	{
		.name = "wm831x-ldo",
		.id = 1,
		.num_resources = ARRAY_SIZE(wm831x_ldo1_resources),
		.resources = wm831x_ldo1_resources,
	},
	{
		.name = "wm831x-ldo",
		.id = 2,
		.num_resources = ARRAY_SIZE(wm831x_ldo2_resources),
		.resources = wm831x_ldo2_resources,
	},
	{
		.name = "wm831x-ldo",
		.id = 3,
		.num_resources = ARRAY_SIZE(wm831x_ldo3_resources),
		.resources = wm831x_ldo3_resources,
	},
	{
		.name = "wm831x-ldo",
		.id = 4,
		.num_resources = ARRAY_SIZE(wm831x_ldo4_resources),
		.resources = wm831x_ldo4_resources,
	},
	{
		.name = "wm831x-ldo",
		.id = 5,
		.num_resources = ARRAY_SIZE(wm831x_ldo5_resources),
		.resources = wm831x_ldo5_resources,
	},
	{
		.name = "wm831x-ldo",
		.id = 6,
		.num_resources = ARRAY_SIZE(wm831x_ldo6_resources),
		.resources = wm831x_ldo6_resources,
	},
	{
		.name = "wm831x-aldo",
		.id = 7,
		.num_resources = ARRAY_SIZE(wm831x_ldo7_resources),
		.resources = wm831x_ldo7_resources,
	},
	{
		.name = "wm831x-aldo",
		.id = 8,
		.num_resources = ARRAY_SIZE(wm831x_ldo8_resources),
		.resources = wm831x_ldo8_resources,
	},
	{
		.name = "wm831x-aldo",
		.id = 9,
		.num_resources = ARRAY_SIZE(wm831x_ldo9_resources),
		.resources = wm831x_ldo9_resources,
	},
	{
		.name = "wm831x-aldo",
		.id = 10,
		.num_resources = ARRAY_SIZE(wm831x_ldo10_resources),
		.resources = wm831x_ldo10_resources,
	},
	{
		.name = "wm831x-alive-ldo",
		.id = 11,
		.num_resources = ARRAY_SIZE(wm831x_ldo11_resources),
		.resources = wm831x_ldo11_resources,
	},
	{
		.name = "wm831x-on",
		.num_resources = ARRAY_SIZE(wm831x_on_resources),
		.resources = wm831x_on_resources,
	},
	{
		.name = "wm831x-power",
		.num_resources = ARRAY_SIZE(wm831x_power_resources),
		.resources = wm831x_power_resources,
	},
	{
		.name = "wm831x-status",
		.id = 1,
		.num_resources = ARRAY_SIZE(wm831x_status1_resources),
		.resources = wm831x_status1_resources,
	},
	{
		.name = "wm831x-status",
		.id = 2,
		.num_resources = ARRAY_SIZE(wm831x_status2_resources),
		.resources = wm831x_status2_resources,
	},
	{
		.name = "wm831x-watchdog",
		.num_resources = ARRAY_SIZE(wm831x_wdt_resources),
		.resources = wm831x_wdt_resources,
	},
};

M
Mark Brown 已提交
1452 1453 1454 1455 1456 1457 1458 1459 1460 1461 1462 1463 1464 1465 1466 1467 1468 1469 1470 1471 1472 1473 1474 1475 1476 1477 1478 1479
static struct mfd_cell wm8320_devs[] = {
	{
		.name = "wm831x-backup",
	},
	{
		.name = "wm831x-buckv",
		.id = 1,
		.num_resources = ARRAY_SIZE(wm831x_dcdc1_resources),
		.resources = wm831x_dcdc1_resources,
	},
	{
		.name = "wm831x-buckv",
		.id = 2,
		.num_resources = ARRAY_SIZE(wm831x_dcdc2_resources),
		.resources = wm831x_dcdc2_resources,
	},
	{
		.name = "wm831x-buckp",
		.id = 3,
		.num_resources = ARRAY_SIZE(wm831x_dcdc3_resources),
		.resources = wm831x_dcdc3_resources,
	},
	{
		.name = "wm831x-buckp",
		.id = 4,
		.num_resources = ARRAY_SIZE(wm8320_dcdc4_buck_resources),
		.resources = wm8320_dcdc4_buck_resources,
	},
1480 1481 1482
	{
		.name = "wm831x-clk",
	},
M
Mark Brown 已提交
1483 1484 1485 1486 1487 1488 1489 1490 1491 1492 1493 1494 1495 1496 1497 1498 1499 1500 1501 1502 1503 1504 1505 1506 1507 1508 1509 1510 1511 1512 1513 1514 1515 1516 1517 1518 1519 1520 1521 1522 1523 1524 1525 1526 1527 1528 1529 1530 1531 1532 1533 1534 1535 1536 1537 1538 1539 1540 1541 1542 1543 1544 1545 1546 1547 1548 1549 1550 1551 1552 1553 1554 1555 1556 1557 1558 1559 1560 1561 1562 1563 1564 1565 1566 1567 1568 1569 1570 1571 1572 1573 1574 1575 1576 1577 1578 1579 1580
	{
		.name = "wm831x-gpio",
		.num_resources = ARRAY_SIZE(wm831x_gpio_resources),
		.resources = wm831x_gpio_resources,
	},
	{
		.name = "wm831x-hwmon",
	},
	{
		.name = "wm831x-ldo",
		.id = 1,
		.num_resources = ARRAY_SIZE(wm831x_ldo1_resources),
		.resources = wm831x_ldo1_resources,
	},
	{
		.name = "wm831x-ldo",
		.id = 2,
		.num_resources = ARRAY_SIZE(wm831x_ldo2_resources),
		.resources = wm831x_ldo2_resources,
	},
	{
		.name = "wm831x-ldo",
		.id = 3,
		.num_resources = ARRAY_SIZE(wm831x_ldo3_resources),
		.resources = wm831x_ldo3_resources,
	},
	{
		.name = "wm831x-ldo",
		.id = 4,
		.num_resources = ARRAY_SIZE(wm831x_ldo4_resources),
		.resources = wm831x_ldo4_resources,
	},
	{
		.name = "wm831x-ldo",
		.id = 5,
		.num_resources = ARRAY_SIZE(wm831x_ldo5_resources),
		.resources = wm831x_ldo5_resources,
	},
	{
		.name = "wm831x-ldo",
		.id = 6,
		.num_resources = ARRAY_SIZE(wm831x_ldo6_resources),
		.resources = wm831x_ldo6_resources,
	},
	{
		.name = "wm831x-aldo",
		.id = 7,
		.num_resources = ARRAY_SIZE(wm831x_ldo7_resources),
		.resources = wm831x_ldo7_resources,
	},
	{
		.name = "wm831x-aldo",
		.id = 8,
		.num_resources = ARRAY_SIZE(wm831x_ldo8_resources),
		.resources = wm831x_ldo8_resources,
	},
	{
		.name = "wm831x-aldo",
		.id = 9,
		.num_resources = ARRAY_SIZE(wm831x_ldo9_resources),
		.resources = wm831x_ldo9_resources,
	},
	{
		.name = "wm831x-aldo",
		.id = 10,
		.num_resources = ARRAY_SIZE(wm831x_ldo10_resources),
		.resources = wm831x_ldo10_resources,
	},
	{
		.name = "wm831x-alive-ldo",
		.id = 11,
		.num_resources = ARRAY_SIZE(wm831x_ldo11_resources),
		.resources = wm831x_ldo11_resources,
	},
	{
		.name = "wm831x-on",
		.num_resources = ARRAY_SIZE(wm831x_on_resources),
		.resources = wm831x_on_resources,
	},
	{
		.name = "wm831x-status",
		.id = 1,
		.num_resources = ARRAY_SIZE(wm831x_status1_resources),
		.resources = wm831x_status1_resources,
	},
	{
		.name = "wm831x-status",
		.id = 2,
		.num_resources = ARRAY_SIZE(wm831x_status2_resources),
		.resources = wm831x_status2_resources,
	},
	{
		.name = "wm831x-watchdog",
		.num_resources = ARRAY_SIZE(wm831x_wdt_resources),
		.resources = wm831x_wdt_resources,
	},
};

1581 1582 1583 1584 1585 1586 1587 1588
static struct mfd_cell touch_devs[] = {
	{
		.name = "wm831x-touch",
		.num_resources = ARRAY_SIZE(wm831x_touch_resources),
		.resources = wm831x_touch_resources,
	},
};

1589 1590 1591 1592 1593 1594 1595
static struct mfd_cell rtc_devs[] = {
	{
		.name = "wm831x-rtc",
		.num_resources = ARRAY_SIZE(wm831x_rtc_resources),
		.resources = wm831x_rtc_resources,
	},
};
1596

1597 1598 1599 1600 1601 1602
static struct mfd_cell backlight_devs[] = {
	{
		.name = "wm831x-backlight",
	},
};

1603 1604 1605
struct regmap_config wm831x_regmap_config = {
	.reg_bits = 16,
	.val_bits = 16,
1606

1607 1608
	.cache_type = REGCACHE_RBTREE,

1609 1610 1611 1612
	.max_register = WM831X_DBE_CHECK_DATA,
	.readable_reg = wm831x_reg_readable,
	.writeable_reg = wm831x_reg_writeable,
	.volatile_reg = wm831x_reg_volatile,
1613 1614 1615
};
EXPORT_SYMBOL_GPL(wm831x_regmap_config);

1616 1617 1618
/*
 * Instantiate the generic non-control parts of the device.
 */
1619
int wm831x_device_init(struct wm831x *wm831x, unsigned long id, int irq)
1620
{
J
Jingoo Han 已提交
1621
	struct wm831x_pdata *pdata = dev_get_platdata(wm831x->dev);
1622
	int rev, wm831x_num;
1623
	enum wm831x_parent parent;
1624
	int ret, i;
1625 1626 1627 1628

	mutex_init(&wm831x->io_lock);
	mutex_init(&wm831x->key_lock);
	dev_set_drvdata(wm831x->dev, wm831x);
1629
	wm831x->soft_shutdown = pdata->soft_shutdown;
1630 1631 1632 1633

	ret = wm831x_reg_read(wm831x, WM831X_PARENT_ID);
	if (ret < 0) {
		dev_err(wm831x->dev, "Failed to read parent ID: %d\n", ret);
1634
		goto err;
1635
	}
1636 1637 1638 1639 1640
	switch (ret) {
	case 0x6204:
	case 0x6246:
		break;
	default:
1641 1642
		dev_err(wm831x->dev, "Device is not a WM831x: ID %x\n", ret);
		ret = -EINVAL;
1643
		goto err;
1644 1645 1646 1647 1648
	}

	ret = wm831x_reg_read(wm831x, WM831X_REVISION);
	if (ret < 0) {
		dev_err(wm831x->dev, "Failed to read revision: %d\n", ret);
1649
		goto err;
1650 1651 1652 1653 1654 1655
	}
	rev = (ret & WM831X_PARENT_REV_MASK) >> WM831X_PARENT_REV_SHIFT;

	ret = wm831x_reg_read(wm831x, WM831X_RESET_ID);
	if (ret < 0) {
		dev_err(wm831x->dev, "Failed to read device ID: %d\n", ret);
1656
		goto err;
1657 1658
	}

1659 1660 1661 1662 1663 1664 1665 1666
	/* Some engineering samples do not have the ID set, rely on
	 * the device being registered correctly.
	 */
	if (ret == 0) {
		dev_info(wm831x->dev, "Device is an engineering sample\n");
		ret = id;
	}

1667
	switch (ret) {
1668
	case WM8310:
1669
		parent = WM8310;
1670
		wm831x->num_gpio = 16;
1671
		wm831x->charger_irq_wake = 1;
M
Mark Brown 已提交
1672 1673 1674 1675 1676
		if (rev > 0) {
			wm831x->has_gpio_ena = 1;
			wm831x->has_cs_sts = 1;
		}

1677
		dev_info(wm831x->dev, "WM8310 revision %c\n", 'A' + rev);
1678 1679
		break;

1680
	case WM8311:
1681
		parent = WM8311;
1682
		wm831x->num_gpio = 16;
1683
		wm831x->charger_irq_wake = 1;
M
Mark Brown 已提交
1684 1685 1686 1687 1688
		if (rev > 0) {
			wm831x->has_gpio_ena = 1;
			wm831x->has_cs_sts = 1;
		}

1689
		dev_info(wm831x->dev, "WM8311 revision %c\n", 'A' + rev);
1690 1691
		break;

1692
	case WM8312:
1693
		parent = WM8312;
1694
		wm831x->num_gpio = 16;
1695
		wm831x->charger_irq_wake = 1;
M
Mark Brown 已提交
1696 1697 1698 1699 1700
		if (rev > 0) {
			wm831x->has_gpio_ena = 1;
			wm831x->has_cs_sts = 1;
		}

1701
		dev_info(wm831x->dev, "WM8312 revision %c\n", 'A' + rev);
1702 1703
		break;

M
Mark Brown 已提交
1704 1705 1706 1707 1708 1709
	case WM8320:
		parent = WM8320;
		wm831x->num_gpio = 12;
		dev_info(wm831x->dev, "WM8320 revision %c\n", 'A' + rev);
		break;

M
Mark Brown 已提交
1710 1711 1712 1713 1714 1715
	case WM8321:
		parent = WM8321;
		wm831x->num_gpio = 12;
		dev_info(wm831x->dev, "WM8321 revision %c\n", 'A' + rev);
		break;

M
Mark Brown 已提交
1716 1717 1718 1719 1720 1721
	case WM8325:
		parent = WM8325;
		wm831x->num_gpio = 12;
		dev_info(wm831x->dev, "WM8325 revision %c\n", 'A' + rev);
		break;

M
Mark Brown 已提交
1722 1723 1724 1725 1726 1727
	case WM8326:
		parent = WM8326;
		wm831x->num_gpio = 12;
		dev_info(wm831x->dev, "WM8326 revision %c\n", 'A' + rev);
		break;

1728 1729 1730
	default:
		dev_err(wm831x->dev, "Unknown WM831x device %04x\n", ret);
		ret = -EINVAL;
1731
		goto err;
1732 1733 1734 1735 1736 1737
	}

	/* This will need revisiting in future but is OK for all
	 * current parts.
	 */
	if (parent != id)
1738
		dev_warn(wm831x->dev, "Device was registered as a WM%lx\n",
1739 1740 1741 1742 1743 1744
			 id);

	/* Bootstrap the user key */
	ret = wm831x_reg_read(wm831x, WM831X_SECURITY_KEY);
	if (ret < 0) {
		dev_err(wm831x->dev, "Failed to read security key: %d\n", ret);
1745
		goto err;
1746 1747 1748 1749 1750 1751 1752 1753 1754 1755 1756 1757
	}
	if (ret != 0) {
		dev_warn(wm831x->dev, "Security key had non-zero value %x\n",
			 ret);
		wm831x_reg_write(wm831x, WM831X_SECURITY_KEY, 0);
	}
	wm831x->locked = 1;

	if (pdata && pdata->pre_init) {
		ret = pdata->pre_init(wm831x);
		if (ret != 0) {
			dev_err(wm831x->dev, "pre_init() failed: %d\n", ret);
1758
			goto err;
1759 1760 1761
		}
	}

1762 1763 1764 1765 1766 1767 1768 1769 1770 1771 1772
	if (pdata) {
		for (i = 0; i < ARRAY_SIZE(pdata->gpio_defaults); i++) {
			if (!pdata->gpio_defaults[i])
				continue;

			wm831x_reg_write(wm831x,
					 WM831X_GPIO1_CONTROL + i,
					 pdata->gpio_defaults[i] & 0xffff);
		}
	}

1773 1774 1775 1776 1777 1778
	/* Multiply by 10 as we have many subdevices of the same type */
	if (pdata && pdata->wm831x_num)
		wm831x_num = pdata->wm831x_num * 10;
	else
		wm831x_num = -1;

M
Mark Brown 已提交
1779 1780
	ret = wm831x_irq_init(wm831x, irq);
	if (ret != 0)
1781
		goto err;
M
Mark Brown 已提交
1782

1783
	wm831x_auxadc_init(wm831x);
1784

1785 1786 1787
	/* The core device is up, instantiate the subdevices. */
	switch (parent) {
	case WM8310:
1788
		ret = mfd_add_devices(wm831x->dev, wm831x_num,
1789
				      wm8310_devs, ARRAY_SIZE(wm8310_devs),
1790
				      NULL, 0, NULL);
1791 1792 1793
		break;

	case WM8311:
1794
		ret = mfd_add_devices(wm831x->dev, wm831x_num,
1795
				      wm8311_devs, ARRAY_SIZE(wm8311_devs),
1796
				      NULL, 0, NULL);
1797 1798 1799
		if (!pdata || !pdata->disable_touch)
			mfd_add_devices(wm831x->dev, wm831x_num,
					touch_devs, ARRAY_SIZE(touch_devs),
1800
					NULL, 0, NULL);
1801 1802 1803
		break;

	case WM8312:
1804
		ret = mfd_add_devices(wm831x->dev, wm831x_num,
1805
				      wm8312_devs, ARRAY_SIZE(wm8312_devs),
1806
				      NULL, 0, NULL);
1807 1808 1809
		if (!pdata || !pdata->disable_touch)
			mfd_add_devices(wm831x->dev, wm831x_num,
					touch_devs, ARRAY_SIZE(touch_devs),
1810
					NULL, 0, NULL);
1811 1812
		break;

M
Mark Brown 已提交
1813
	case WM8320:
M
Mark Brown 已提交
1814
	case WM8321:
M
Mark Brown 已提交
1815
	case WM8325:
M
Mark Brown 已提交
1816
	case WM8326:
1817
		ret = mfd_add_devices(wm831x->dev, wm831x_num,
M
Mark Brown 已提交
1818
				      wm8320_devs, ARRAY_SIZE(wm8320_devs),
1819
				      NULL, 0, NULL);
M
Mark Brown 已提交
1820 1821
		break;

1822 1823 1824 1825 1826 1827 1828
	default:
		/* If this happens the bus probe function is buggy */
		BUG();
	}

	if (ret != 0) {
		dev_err(wm831x->dev, "Failed to add children\n");
M
Mark Brown 已提交
1829
		goto err_irq;
1830 1831
	}

1832 1833 1834 1835 1836 1837 1838 1839 1840 1841 1842 1843
	/* The RTC can only be used if the 32.768kHz crystal is
	 * enabled; this can't be controlled by software at runtime.
	 */
	ret = wm831x_reg_read(wm831x, WM831X_CLOCK_CONTROL_2);
	if (ret < 0) {
		dev_err(wm831x->dev, "Failed to read clock status: %d\n", ret);
		goto err_irq;
	}

	if (ret & WM831X_XTAL_ENA) {
		ret = mfd_add_devices(wm831x->dev, wm831x_num,
				      rtc_devs, ARRAY_SIZE(rtc_devs),
1844
				      NULL, 0, NULL);
1845 1846 1847 1848 1849 1850 1851 1852
		if (ret != 0) {
			dev_err(wm831x->dev, "Failed to add RTC: %d\n", ret);
			goto err_irq;
		}
	} else {
		dev_info(wm831x->dev, "32.768kHz clock disabled, no RTC\n");
	}

1853 1854
	if (pdata && pdata->backlight) {
		/* Treat errors as non-critical */
1855
		ret = mfd_add_devices(wm831x->dev, wm831x_num, backlight_devs,
M
Mark Brown 已提交
1856
				      ARRAY_SIZE(backlight_devs), NULL,
1857
				      0, NULL);
1858 1859 1860 1861 1862
		if (ret < 0)
			dev_err(wm831x->dev, "Failed to add backlight: %d\n",
				ret);
	}

M
Mark Brown 已提交
1863 1864
	wm831x_otp_init(wm831x);

1865 1866 1867 1868
	if (pdata && pdata->post_init) {
		ret = pdata->post_init(wm831x);
		if (ret != 0) {
			dev_err(wm831x->dev, "post_init() failed: %d\n", ret);
M
Mark Brown 已提交
1869
			goto err_irq;
1870 1871 1872 1873 1874
		}
	}

	return 0;

M
Mark Brown 已提交
1875 1876
err_irq:
	wm831x_irq_exit(wm831x);
1877
err:
1878 1879 1880 1881
	mfd_remove_devices(wm831x->dev);
	return ret;
}

1882
void wm831x_device_exit(struct wm831x *wm831x)
1883
{
M
Mark Brown 已提交
1884
	wm831x_otp_exit(wm831x);
1885
	mfd_remove_devices(wm831x->dev);
M
Mark Brown 已提交
1886
	free_irq(wm831x_irq(wm831x, WM831X_IRQ_AUXADC_DATA), wm831x);
M
Mark Brown 已提交
1887
	wm831x_irq_exit(wm831x);
1888 1889
}

1890
int wm831x_device_suspend(struct wm831x *wm831x)
1891 1892 1893 1894 1895 1896 1897 1898 1899 1900 1901 1902 1903 1904 1905 1906 1907 1908 1909 1910 1911 1912 1913 1914 1915 1916 1917 1918 1919 1920 1921 1922 1923 1924 1925
{
	int reg, mask;

	/* If the charger IRQs are a wake source then make sure we ack
	 * them even if they're not actively being used (eg, no power
	 * driver or no IRQ line wired up) then acknowledge the
	 * interrupts otherwise suspend won't last very long.
	 */
	if (wm831x->charger_irq_wake) {
		reg = wm831x_reg_read(wm831x, WM831X_INTERRUPT_STATUS_2_MASK);

		mask = WM831X_CHG_BATT_HOT_EINT |
			WM831X_CHG_BATT_COLD_EINT |
			WM831X_CHG_BATT_FAIL_EINT |
			WM831X_CHG_OV_EINT | WM831X_CHG_END_EINT |
			WM831X_CHG_TO_EINT | WM831X_CHG_MODE_EINT |
			WM831X_CHG_START_EINT;

		/* If any of the interrupts are masked read the statuses */
		if (reg & mask)
			reg = wm831x_reg_read(wm831x,
					      WM831X_INTERRUPT_STATUS_2);

		if (reg & mask) {
			dev_info(wm831x->dev,
				 "Acknowledging masked charger IRQs: %x\n",
				 reg & mask);
			wm831x_reg_write(wm831x, WM831X_INTERRUPT_STATUS_2,
					 reg & mask);
		}
	}

	return 0;
}

1926 1927 1928 1929 1930 1931 1932 1933 1934
void wm831x_device_shutdown(struct wm831x *wm831x)
{
	if (wm831x->soft_shutdown) {
		dev_info(wm831x->dev, "Initiating shutdown...\n");
		wm831x_set_bits(wm831x, WM831X_POWER_STATE, WM831X_CHIP_ON, 0);
	}
}
EXPORT_SYMBOL_GPL(wm831x_device_shutdown);

1935
MODULE_DESCRIPTION("Core support for the WM831X AudioPlus PMIC");
1936 1937
MODULE_LICENSE("GPL");
MODULE_AUTHOR("Mark Brown");