1/*
2 * wm831x-core.c -- Device access for Wolfson WM831x PMICs
3 *
4 * Copyright 2009 Wolfson Microelectronics PLC.
5 *
6 * Author: Mark Brown <broonie@opensource.wolfsonmicro.com>
7 *
8 * This program is free software; you can redistribute it and/or modify it
9 * under the terms of the GNU General Public License as published by the
10 * Free Software Foundation; either version 2 of the License, or (at your
11 * option) any later version.
12 *
13 */
14
15#include <linux/kernel.h>
16#include <linux/init.h>
17#include <linux/export.h>
18#include <linux/bcd.h>
19#include <linux/delay.h>
20#include <linux/mfd/core.h>
21#include <linux/slab.h>
22#include <linux/err.h>
23#include <linux/of.h>
24#include <linux/of_device.h>
25
26#include <linux/mfd/wm831x/core.h>
27#include <linux/mfd/wm831x/pdata.h>
28#include <linux/mfd/wm831x/irq.h>
29#include <linux/mfd/wm831x/auxadc.h>
30#include <linux/mfd/wm831x/otp.h>
31#include <linux/mfd/wm831x/pmu.h>
32#include <linux/mfd/wm831x/regulator.h>
33
34/* Current settings - values are 2*2^(reg_val/4) microamps. These are
35 * exported since they are used by multiple drivers.
36 */
37int wm831x_isinkv_values[WM831X_ISINK_MAX_ISEL + 1] = {
38 2,
39 2,
40 3,
41 3,
42 4,
43 5,
44 6,
45 7,
46 8,
47 10,
48 11,
49 13,
50 16,
51 19,
52 23,
53 27,
54 32,
55 38,
56 45,
57 54,
58 64,
59 76,
60 91,
61 108,
62 128,
63 152,
64 181,
65 215,
66 256,
67 304,
68 362,
69 431,
70 512,
71 609,
72 724,
73 861,
74 1024,
75 1218,
76 1448,
77 1722,
78 2048,
79 2435,
80 2896,
81 3444,
82 4096,
83 4871,
84 5793,
85 6889,
86 8192,
87 9742,
88 11585,
89 13777,
90 16384,
91 19484,
92 23170,
93 27554,
94};
95EXPORT_SYMBOL_GPL(wm831x_isinkv_values);
96
97static int wm831x_reg_locked(struct wm831x *wm831x, unsigned short reg)
98{
99 if (!wm831x->locked)
100 return 0;
101
102 switch (reg) {
103 case WM831X_WATCHDOG:
104 case WM831X_DC4_CONTROL:
105 case WM831X_ON_PIN_CONTROL:
106 case WM831X_BACKUP_CHARGER_CONTROL:
107 case WM831X_CHARGER_CONTROL_1:
108 case WM831X_CHARGER_CONTROL_2:
109 return 1;
110
111 default:
112 return 0;
113 }
114}
115
116/**
117 * wm831x_reg_unlock: Unlock user keyed registers
118 *
119 * The WM831x has a user key preventing writes to particularly
120 * critical registers. This function locks those registers,
121 * allowing writes to them.
122 */
123void wm831x_reg_lock(struct wm831x *wm831x)
124{
125 int ret;
126
127 ret = wm831x_reg_write(wm831x, WM831X_SECURITY_KEY, 0);
128 if (ret == 0) {
129 dev_vdbg(wm831x->dev, "Registers locked\n");
130
131 mutex_lock(&wm831x->io_lock);
132 WARN_ON(wm831x->locked);
133 wm831x->locked = 1;
134 mutex_unlock(&wm831x->io_lock);
135 } else {
136 dev_err(wm831x->dev, "Failed to lock registers: %d\n", ret);
137 }
138
139}
140EXPORT_SYMBOL_GPL(wm831x_reg_lock);
141
142/**
143 * wm831x_reg_unlock: Unlock user keyed registers
144 *
145 * The WM831x has a user key preventing writes to particularly
146 * critical registers. This function locks those registers,
147 * preventing spurious writes.
148 */
149int wm831x_reg_unlock(struct wm831x *wm831x)
150{
151 int ret;
152
153 /* 0x9716 is the value required to unlock the registers */
154 ret = wm831x_reg_write(wm831x, WM831X_SECURITY_KEY, 0x9716);
155 if (ret == 0) {
156 dev_vdbg(wm831x->dev, "Registers unlocked\n");
157
158 mutex_lock(&wm831x->io_lock);
159 WARN_ON(!wm831x->locked);
160 wm831x->locked = 0;
161 mutex_unlock(&wm831x->io_lock);
162 }
163
164 return ret;
165}
166EXPORT_SYMBOL_GPL(wm831x_reg_unlock);
167
168static bool wm831x_reg_readable(struct device *dev, unsigned int reg)
169{
170 switch (reg) {
171 case WM831X_RESET_ID:
172 case WM831X_REVISION:
173 case WM831X_PARENT_ID:
174 case WM831X_SYSVDD_CONTROL:
175 case WM831X_THERMAL_MONITORING:
176 case WM831X_POWER_STATE:
177 case WM831X_WATCHDOG:
178 case WM831X_ON_PIN_CONTROL:
179 case WM831X_RESET_CONTROL:
180 case WM831X_CONTROL_INTERFACE:
181 case WM831X_SECURITY_KEY:
182 case WM831X_SOFTWARE_SCRATCH:
183 case WM831X_OTP_CONTROL:
184 case WM831X_GPIO_LEVEL:
185 case WM831X_SYSTEM_STATUS:
186 case WM831X_ON_SOURCE:
187 case WM831X_OFF_SOURCE:
188 case WM831X_SYSTEM_INTERRUPTS:
189 case WM831X_INTERRUPT_STATUS_1:
190 case WM831X_INTERRUPT_STATUS_2:
191 case WM831X_INTERRUPT_STATUS_3:
192 case WM831X_INTERRUPT_STATUS_4:
193 case WM831X_INTERRUPT_STATUS_5:
194 case WM831X_IRQ_CONFIG:
195 case WM831X_SYSTEM_INTERRUPTS_MASK:
196 case WM831X_INTERRUPT_STATUS_1_MASK:
197 case WM831X_INTERRUPT_STATUS_2_MASK:
198 case WM831X_INTERRUPT_STATUS_3_MASK:
199 case WM831X_INTERRUPT_STATUS_4_MASK:
200 case WM831X_INTERRUPT_STATUS_5_MASK:
201 case WM831X_RTC_WRITE_COUNTER:
202 case WM831X_RTC_TIME_1:
203 case WM831X_RTC_TIME_2:
204 case WM831X_RTC_ALARM_1:
205 case WM831X_RTC_ALARM_2:
206 case WM831X_RTC_CONTROL:
207 case WM831X_RTC_TRIM:
208 case WM831X_TOUCH_CONTROL_1:
209 case WM831X_TOUCH_CONTROL_2:
210 case WM831X_TOUCH_DATA_X:
211 case WM831X_TOUCH_DATA_Y:
212 case WM831X_TOUCH_DATA_Z:
213 case WM831X_AUXADC_DATA:
214 case WM831X_AUXADC_CONTROL:
215 case WM831X_AUXADC_SOURCE:
216 case WM831X_COMPARATOR_CONTROL:
217 case WM831X_COMPARATOR_1:
218 case WM831X_COMPARATOR_2:
219 case WM831X_COMPARATOR_3:
220 case WM831X_COMPARATOR_4:
221 case WM831X_GPIO1_CONTROL:
222 case WM831X_GPIO2_CONTROL:
223 case WM831X_GPIO3_CONTROL:
224 case WM831X_GPIO4_CONTROL:
225 case WM831X_GPIO5_CONTROL:
226 case WM831X_GPIO6_CONTROL:
227 case WM831X_GPIO7_CONTROL:
228 case WM831X_GPIO8_CONTROL:
229 case WM831X_GPIO9_CONTROL:
230 case WM831X_GPIO10_CONTROL:
231 case WM831X_GPIO11_CONTROL:
232 case WM831X_GPIO12_CONTROL:
233 case WM831X_GPIO13_CONTROL:
234 case WM831X_GPIO14_CONTROL:
235 case WM831X_GPIO15_CONTROL:
236 case WM831X_GPIO16_CONTROL:
237 case WM831X_CHARGER_CONTROL_1:
238 case WM831X_CHARGER_CONTROL_2:
239 case WM831X_CHARGER_STATUS:
240 case WM831X_BACKUP_CHARGER_CONTROL:
241 case WM831X_STATUS_LED_1:
242 case WM831X_STATUS_LED_2:
243 case WM831X_CURRENT_SINK_1:
244 case WM831X_CURRENT_SINK_2:
245 case WM831X_DCDC_ENABLE:
246 case WM831X_LDO_ENABLE:
247 case WM831X_DCDC_STATUS:
248 case WM831X_LDO_STATUS:
249 case WM831X_DCDC_UV_STATUS:
250 case WM831X_LDO_UV_STATUS:
251 case WM831X_DC1_CONTROL_1:
252 case WM831X_DC1_CONTROL_2:
253 case WM831X_DC1_ON_CONFIG:
254 case WM831X_DC1_SLEEP_CONTROL:
255 case WM831X_DC1_DVS_CONTROL:
256 case WM831X_DC2_CONTROL_1:
257 case WM831X_DC2_CONTROL_2:
258 case WM831X_DC2_ON_CONFIG:
259 case WM831X_DC2_SLEEP_CONTROL:
260 case WM831X_DC2_DVS_CONTROL:
261 case WM831X_DC3_CONTROL_1:
262 case WM831X_DC3_CONTROL_2:
263 case WM831X_DC3_ON_CONFIG:
264 case WM831X_DC3_SLEEP_CONTROL:
265 case WM831X_DC4_CONTROL:
266 case WM831X_DC4_SLEEP_CONTROL:
267 case WM831X_EPE1_CONTROL:
268 case WM831X_EPE2_CONTROL:
269 case WM831X_LDO1_CONTROL:
270 case WM831X_LDO1_ON_CONTROL:
271 case WM831X_LDO1_SLEEP_CONTROL:
272 case WM831X_LDO2_CONTROL:
273 case WM831X_LDO2_ON_CONTROL:
274 case WM831X_LDO2_SLEEP_CONTROL:
275 case WM831X_LDO3_CONTROL:
276 case WM831X_LDO3_ON_CONTROL:
277 case WM831X_LDO3_SLEEP_CONTROL:
278 case WM831X_LDO4_CONTROL:
279 case WM831X_LDO4_ON_CONTROL:
280 case WM831X_LDO4_SLEEP_CONTROL:
281 case WM831X_LDO5_CONTROL:
282 case WM831X_LDO5_ON_CONTROL:
283 case WM831X_LDO5_SLEEP_CONTROL:
284 case WM831X_LDO6_CONTROL:
285 case WM831X_LDO6_ON_CONTROL:
286 case WM831X_LDO6_SLEEP_CONTROL:
287 case WM831X_LDO7_CONTROL:
288 case WM831X_LDO7_ON_CONTROL:
289 case WM831X_LDO7_SLEEP_CONTROL:
290 case WM831X_LDO8_CONTROL:
291 case WM831X_LDO8_ON_CONTROL:
292 case WM831X_LDO8_SLEEP_CONTROL:
293 case WM831X_LDO9_CONTROL:
294 case WM831X_LDO9_ON_CONTROL:
295 case WM831X_LDO9_SLEEP_CONTROL:
296 case WM831X_LDO10_CONTROL:
297 case WM831X_LDO10_ON_CONTROL:
298 case WM831X_LDO10_SLEEP_CONTROL:
299 case WM831X_LDO11_ON_CONTROL:
300 case WM831X_LDO11_SLEEP_CONTROL:
301 case WM831X_POWER_GOOD_SOURCE_1:
302 case WM831X_POWER_GOOD_SOURCE_2:
303 case WM831X_CLOCK_CONTROL_1:
304 case WM831X_CLOCK_CONTROL_2:
305 case WM831X_FLL_CONTROL_1:
306 case WM831X_FLL_CONTROL_2:
307 case WM831X_FLL_CONTROL_3:
308 case WM831X_FLL_CONTROL_4:
309 case WM831X_FLL_CONTROL_5:
310 case WM831X_UNIQUE_ID_1:
311 case WM831X_UNIQUE_ID_2:
312 case WM831X_UNIQUE_ID_3:
313 case WM831X_UNIQUE_ID_4:
314 case WM831X_UNIQUE_ID_5:
315 case WM831X_UNIQUE_ID_6:
316 case WM831X_UNIQUE_ID_7:
317 case WM831X_UNIQUE_ID_8:
318 case WM831X_FACTORY_OTP_ID:
319 case WM831X_FACTORY_OTP_1:
320 case WM831X_FACTORY_OTP_2:
321 case WM831X_FACTORY_OTP_3:
322 case WM831X_FACTORY_OTP_4:
323 case WM831X_FACTORY_OTP_5:
324 case WM831X_CUSTOMER_OTP_ID:
325 case WM831X_DC1_OTP_CONTROL:
326 case WM831X_DC2_OTP_CONTROL:
327 case WM831X_DC3_OTP_CONTROL:
328 case WM831X_LDO1_2_OTP_CONTROL:
329 case WM831X_LDO3_4_OTP_CONTROL:
330 case WM831X_LDO5_6_OTP_CONTROL:
331 case WM831X_LDO7_8_OTP_CONTROL:
332 case WM831X_LDO9_10_OTP_CONTROL:
333 case WM831X_LDO11_EPE_CONTROL:
334 case WM831X_GPIO1_OTP_CONTROL:
335 case WM831X_GPIO2_OTP_CONTROL:
336 case WM831X_GPIO3_OTP_CONTROL:
337 case WM831X_GPIO4_OTP_CONTROL:
338 case WM831X_GPIO5_OTP_CONTROL:
339 case WM831X_GPIO6_OTP_CONTROL:
340 case WM831X_DBE_CHECK_DATA:
341 return true;
342 default:
343 return false;
344 }
345}
346
347static bool wm831x_reg_writeable(struct device *dev, unsigned int reg)
348{
349 struct wm831x *wm831x = dev_get_drvdata(dev);
350
351 if (wm831x_reg_locked(wm831x, reg))
352 return false;
353
354 switch (reg) {
355 case WM831X_SYSVDD_CONTROL:
356 case WM831X_THERMAL_MONITORING:
357 case WM831X_POWER_STATE:
358 case WM831X_WATCHDOG:
359 case WM831X_ON_PIN_CONTROL:
360 case WM831X_RESET_CONTROL:
361 case WM831X_CONTROL_INTERFACE:
362 case WM831X_SECURITY_KEY:
363 case WM831X_SOFTWARE_SCRATCH:
364 case WM831X_OTP_CONTROL:
365 case WM831X_GPIO_LEVEL:
366 case WM831X_INTERRUPT_STATUS_1:
367 case WM831X_INTERRUPT_STATUS_2:
368 case WM831X_INTERRUPT_STATUS_3:
369 case WM831X_INTERRUPT_STATUS_4:
370 case WM831X_INTERRUPT_STATUS_5:
371 case WM831X_IRQ_CONFIG:
372 case WM831X_SYSTEM_INTERRUPTS_MASK:
373 case WM831X_INTERRUPT_STATUS_1_MASK:
374 case WM831X_INTERRUPT_STATUS_2_MASK:
375 case WM831X_INTERRUPT_STATUS_3_MASK:
376 case WM831X_INTERRUPT_STATUS_4_MASK:
377 case WM831X_INTERRUPT_STATUS_5_MASK:
378 case WM831X_RTC_TIME_1:
379 case WM831X_RTC_TIME_2:
380 case WM831X_RTC_ALARM_1:
381 case WM831X_RTC_ALARM_2:
382 case WM831X_RTC_CONTROL:
383 case WM831X_RTC_TRIM:
384 case WM831X_TOUCH_CONTROL_1:
385 case WM831X_TOUCH_CONTROL_2:
386 case WM831X_AUXADC_CONTROL:
387 case WM831X_AUXADC_SOURCE:
388 case WM831X_COMPARATOR_CONTROL:
389 case WM831X_COMPARATOR_1:
390 case WM831X_COMPARATOR_2:
391 case WM831X_COMPARATOR_3:
392 case WM831X_COMPARATOR_4:
393 case WM831X_GPIO1_CONTROL:
394 case WM831X_GPIO2_CONTROL:
395 case WM831X_GPIO3_CONTROL:
396 case WM831X_GPIO4_CONTROL:
397 case WM831X_GPIO5_CONTROL:
398 case WM831X_GPIO6_CONTROL:
399 case WM831X_GPIO7_CONTROL:
400 case WM831X_GPIO8_CONTROL:
401 case WM831X_GPIO9_CONTROL:
402 case WM831X_GPIO10_CONTROL:
403 case WM831X_GPIO11_CONTROL:
404 case WM831X_GPIO12_CONTROL:
405 case WM831X_GPIO13_CONTROL:
406 case WM831X_GPIO14_CONTROL:
407 case WM831X_GPIO15_CONTROL:
408 case WM831X_GPIO16_CONTROL:
409 case WM831X_CHARGER_CONTROL_1:
410 case WM831X_CHARGER_CONTROL_2:
411 case WM831X_CHARGER_STATUS:
412 case WM831X_BACKUP_CHARGER_CONTROL:
413 case WM831X_STATUS_LED_1:
414 case WM831X_STATUS_LED_2:
415 case WM831X_CURRENT_SINK_1:
416 case WM831X_CURRENT_SINK_2:
417 case WM831X_DCDC_ENABLE:
418 case WM831X_LDO_ENABLE:
419 case WM831X_DC1_CONTROL_1:
420 case WM831X_DC1_CONTROL_2:
421 case WM831X_DC1_ON_CONFIG:
422 case WM831X_DC1_SLEEP_CONTROL:
423 case WM831X_DC1_DVS_CONTROL:
424 case WM831X_DC2_CONTROL_1:
425 case WM831X_DC2_CONTROL_2:
426 case WM831X_DC2_ON_CONFIG:
427 case WM831X_DC2_SLEEP_CONTROL:
428 case WM831X_DC2_DVS_CONTROL:
429 case WM831X_DC3_CONTROL_1:
430 case WM831X_DC3_CONTROL_2:
431 case WM831X_DC3_ON_CONFIG:
432 case WM831X_DC3_SLEEP_CONTROL:
433 case WM831X_DC4_CONTROL:
434 case WM831X_DC4_SLEEP_CONTROL:
435 case WM831X_EPE1_CONTROL:
436 case WM831X_EPE2_CONTROL:
437 case WM831X_LDO1_CONTROL:
438 case WM831X_LDO1_ON_CONTROL:
439 case WM831X_LDO1_SLEEP_CONTROL:
440 case WM831X_LDO2_CONTROL:
441 case WM831X_LDO2_ON_CONTROL:
442 case WM831X_LDO2_SLEEP_CONTROL:
443 case WM831X_LDO3_CONTROL:
444 case WM831X_LDO3_ON_CONTROL:
445 case WM831X_LDO3_SLEEP_CONTROL:
446 case WM831X_LDO4_CONTROL:
447 case WM831X_LDO4_ON_CONTROL:
448 case WM831X_LDO4_SLEEP_CONTROL:
449 case WM831X_LDO5_CONTROL:
450 case WM831X_LDO5_ON_CONTROL:
451 case WM831X_LDO5_SLEEP_CONTROL:
452 case WM831X_LDO6_CONTROL:
453 case WM831X_LDO6_ON_CONTROL:
454 case WM831X_LDO6_SLEEP_CONTROL:
455 case WM831X_LDO7_CONTROL:
456 case WM831X_LDO7_ON_CONTROL:
457 case WM831X_LDO7_SLEEP_CONTROL:
458 case WM831X_LDO8_CONTROL:
459 case WM831X_LDO8_ON_CONTROL:
460 case WM831X_LDO8_SLEEP_CONTROL:
461 case WM831X_LDO9_CONTROL:
462 case WM831X_LDO9_ON_CONTROL:
463 case WM831X_LDO9_SLEEP_CONTROL:
464 case WM831X_LDO10_CONTROL:
465 case WM831X_LDO10_ON_CONTROL:
466 case WM831X_LDO10_SLEEP_CONTROL:
467 case WM831X_LDO11_ON_CONTROL:
468 case WM831X_LDO11_SLEEP_CONTROL:
469 case WM831X_POWER_GOOD_SOURCE_1:
470 case WM831X_POWER_GOOD_SOURCE_2:
471 case WM831X_CLOCK_CONTROL_1:
472 case WM831X_CLOCK_CONTROL_2:
473 case WM831X_FLL_CONTROL_1:
474 case WM831X_FLL_CONTROL_2:
475 case WM831X_FLL_CONTROL_3:
476 case WM831X_FLL_CONTROL_4:
477 case WM831X_FLL_CONTROL_5:
478 return true;
479 default:
480 return false;
481 }
482}
483
484static bool wm831x_reg_volatile(struct device *dev, unsigned int reg)
485{
486 switch (reg) {
487 case WM831X_SYSTEM_STATUS:
488 case WM831X_ON_SOURCE:
489 case WM831X_OFF_SOURCE:
490 case WM831X_GPIO_LEVEL:
491 case WM831X_SYSTEM_INTERRUPTS:
492 case WM831X_INTERRUPT_STATUS_1:
493 case WM831X_INTERRUPT_STATUS_2:
494 case WM831X_INTERRUPT_STATUS_3:
495 case WM831X_INTERRUPT_STATUS_4:
496 case WM831X_INTERRUPT_STATUS_5:
497 case WM831X_RTC_TIME_1:
498 case WM831X_RTC_TIME_2:
499 case WM831X_TOUCH_DATA_X:
500 case WM831X_TOUCH_DATA_Y:
501 case WM831X_TOUCH_DATA_Z:
502 case WM831X_AUXADC_DATA:
503 case WM831X_CHARGER_STATUS:
504 case WM831X_DCDC_STATUS:
505 case WM831X_LDO_STATUS:
506 case WM831X_DCDC_UV_STATUS:
507 case WM831X_LDO_UV_STATUS:
508 return true;
509 default:
510 return false;
511 }
512}
513
514/**
515 * wm831x_reg_read: Read a single WM831x register.
516 *
517 * @wm831x: Device to read from.
518 * @reg: Register to read.
519 */
520int wm831x_reg_read(struct wm831x *wm831x, unsigned short reg)
521{
522 unsigned int val;
523 int ret;
524
525 ret = regmap_read(wm831x->regmap, reg, &val);
526
527 if (ret < 0)
528 return ret;
529 else
530 return val;
531}
532EXPORT_SYMBOL_GPL(wm831x_reg_read);
533
534/**
535 * wm831x_bulk_read: Read multiple WM831x registers
536 *
537 * @wm831x: Device to read from
538 * @reg: First register
539 * @count: Number of registers
540 * @buf: Buffer to fill.
541 */
542int wm831x_bulk_read(struct wm831x *wm831x, unsigned short reg,
543 int count, u16 *buf)
544{
545 return regmap_bulk_read(wm831x->regmap, reg, buf, count);
546}
547EXPORT_SYMBOL_GPL(wm831x_bulk_read);
548
549static int wm831x_write(struct wm831x *wm831x, unsigned short reg,
550 int bytes, void *src)
551{
552 u16 *buf = src;
553 int i, ret;
554
555 BUG_ON(bytes % 2);
556 BUG_ON(bytes <= 0);
557
558 for (i = 0; i < bytes / 2; i++) {
559 if (wm831x_reg_locked(wm831x, reg))
560 return -EPERM;
561
562 dev_vdbg(wm831x->dev, "Write %04x to R%d(0x%x)\n",
563 buf[i], reg + i, reg + i);
564 ret = regmap_write(wm831x->regmap, reg + i, buf[i]);
565 if (ret != 0)
566 return ret;
567 }
568
569 return 0;
570}
571
572/**
573 * wm831x_reg_write: Write a single WM831x register.
574 *
575 * @wm831x: Device to write to.
576 * @reg: Register to write to.
577 * @val: Value to write.
578 */
579int wm831x_reg_write(struct wm831x *wm831x, unsigned short reg,
580 unsigned short val)
581{
582 int ret;
583
584 mutex_lock(&wm831x->io_lock);
585
586 ret = wm831x_write(wm831x, reg, 2, &val);
587
588 mutex_unlock(&wm831x->io_lock);
589
590 return ret;
591}
592EXPORT_SYMBOL_GPL(wm831x_reg_write);
593
594/**
595 * wm831x_set_bits: Set the value of a bitfield in a WM831x register
596 *
597 * @wm831x: Device to write to.
598 * @reg: Register to write to.
599 * @mask: Mask of bits to set.
600 * @val: Value to set (unshifted)
601 */
602int wm831x_set_bits(struct wm831x *wm831x, unsigned short reg,
603 unsigned short mask, unsigned short val)
604{
605 int ret;
606
607 mutex_lock(&wm831x->io_lock);
608
609 if (!wm831x_reg_locked(wm831x, reg))
610 ret = regmap_update_bits(wm831x->regmap, reg, mask, val);
611 else
612 ret = -EPERM;
613
614 mutex_unlock(&wm831x->io_lock);
615
616 return ret;
617}
618EXPORT_SYMBOL_GPL(wm831x_set_bits);
619
620static struct resource wm831x_dcdc1_resources[] = {
621 {
622 .start = WM831X_DC1_CONTROL_1,
623 .end = WM831X_DC1_DVS_CONTROL,
624 .flags = IORESOURCE_REG,
625 },
626 {
627 .name = "UV",
628 .start = WM831X_IRQ_UV_DC1,
629 .end = WM831X_IRQ_UV_DC1,
630 .flags = IORESOURCE_IRQ,
631 },
632 {
633 .name = "HC",
634 .start = WM831X_IRQ_HC_DC1,
635 .end = WM831X_IRQ_HC_DC1,
636 .flags = IORESOURCE_IRQ,
637 },
638};
639
640
641static struct resource wm831x_dcdc2_resources[] = {
642 {
643 .start = WM831X_DC2_CONTROL_1,
644 .end = WM831X_DC2_DVS_CONTROL,
645 .flags = IORESOURCE_REG,
646 },
647 {
648 .name = "UV",
649 .start = WM831X_IRQ_UV_DC2,
650 .end = WM831X_IRQ_UV_DC2,
651 .flags = IORESOURCE_IRQ,
652 },
653 {
654 .name = "HC",
655 .start = WM831X_IRQ_HC_DC2,
656 .end = WM831X_IRQ_HC_DC2,
657 .flags = IORESOURCE_IRQ,
658 },
659};
660
661static struct resource wm831x_dcdc3_resources[] = {
662 {
663 .start = WM831X_DC3_CONTROL_1,
664 .end = WM831X_DC3_SLEEP_CONTROL,
665 .flags = IORESOURCE_REG,
666 },
667 {
668 .name = "UV",
669 .start = WM831X_IRQ_UV_DC3,
670 .end = WM831X_IRQ_UV_DC3,
671 .flags = IORESOURCE_IRQ,
672 },
673};
674
675static struct resource wm831x_dcdc4_resources[] = {
676 {
677 .start = WM831X_DC4_CONTROL,
678 .end = WM831X_DC4_SLEEP_CONTROL,
679 .flags = IORESOURCE_REG,
680 },
681 {
682 .name = "UV",
683 .start = WM831X_IRQ_UV_DC4,
684 .end = WM831X_IRQ_UV_DC4,
685 .flags = IORESOURCE_IRQ,
686 },
687};
688
689static struct resource wm8320_dcdc4_buck_resources[] = {
690 {
691 .start = WM831X_DC4_CONTROL,
692 .end = WM832X_DC4_SLEEP_CONTROL,
693 .flags = IORESOURCE_REG,
694 },
695 {
696 .name = "UV",
697 .start = WM831X_IRQ_UV_DC4,
698 .end = WM831X_IRQ_UV_DC4,
699 .flags = IORESOURCE_IRQ,
700 },
701};
702
703static struct resource wm831x_gpio_resources[] = {
704 {
705 .start = WM831X_IRQ_GPIO_1,
706 .end = WM831X_IRQ_GPIO_16,
707 .flags = IORESOURCE_IRQ,
708 },
709};
710
711static struct resource wm831x_isink1_resources[] = {
712 {
713 .start = WM831X_CURRENT_SINK_1,
714 .end = WM831X_CURRENT_SINK_1,
715 .flags = IORESOURCE_REG,
716 },
717 {
718 .start = WM831X_IRQ_CS1,
719 .end = WM831X_IRQ_CS1,
720 .flags = IORESOURCE_IRQ,
721 },
722};
723
724static struct resource wm831x_isink2_resources[] = {
725 {
726 .start = WM831X_CURRENT_SINK_2,
727 .end = WM831X_CURRENT_SINK_2,
728 .flags = IORESOURCE_REG,
729 },
730 {
731 .start = WM831X_IRQ_CS2,
732 .end = WM831X_IRQ_CS2,
733 .flags = IORESOURCE_IRQ,
734 },
735};
736
737static struct resource wm831x_ldo1_resources[] = {
738 {
739 .start = WM831X_LDO1_CONTROL,
740 .end = WM831X_LDO1_SLEEP_CONTROL,
741 .flags = IORESOURCE_REG,
742 },
743 {
744 .name = "UV",
745 .start = WM831X_IRQ_UV_LDO1,
746 .end = WM831X_IRQ_UV_LDO1,
747 .flags = IORESOURCE_IRQ,
748 },
749};
750
751static struct resource wm831x_ldo2_resources[] = {
752 {
753 .start = WM831X_LDO2_CONTROL,
754 .end = WM831X_LDO2_SLEEP_CONTROL,
755 .flags = IORESOURCE_REG,
756 },
757 {
758 .name = "UV",
759 .start = WM831X_IRQ_UV_LDO2,
760 .end = WM831X_IRQ_UV_LDO2,
761 .flags = IORESOURCE_IRQ,
762 },
763};
764
765static struct resource wm831x_ldo3_resources[] = {
766 {
767 .start = WM831X_LDO3_CONTROL,
768 .end = WM831X_LDO3_SLEEP_CONTROL,
769 .flags = IORESOURCE_REG,
770 },
771 {
772 .name = "UV",
773 .start = WM831X_IRQ_UV_LDO3,
774 .end = WM831X_IRQ_UV_LDO3,
775 .flags = IORESOURCE_IRQ,
776 },
777};
778
779static struct resource wm831x_ldo4_resources[] = {
780 {
781 .start = WM831X_LDO4_CONTROL,
782 .end = WM831X_LDO4_SLEEP_CONTROL,
783 .flags = IORESOURCE_REG,
784 },
785 {
786 .name = "UV",
787 .start = WM831X_IRQ_UV_LDO4,
788 .end = WM831X_IRQ_UV_LDO4,
789 .flags = IORESOURCE_IRQ,
790 },
791};
792
793static struct resource wm831x_ldo5_resources[] = {
794 {
795 .start = WM831X_LDO5_CONTROL,
796 .end = WM831X_LDO5_SLEEP_CONTROL,
797 .flags = IORESOURCE_REG,
798 },
799 {
800 .name = "UV",
801 .start = WM831X_IRQ_UV_LDO5,
802 .end = WM831X_IRQ_UV_LDO5,
803 .flags = IORESOURCE_IRQ,
804 },
805};
806
807static struct resource wm831x_ldo6_resources[] = {
808 {
809 .start = WM831X_LDO6_CONTROL,
810 .end = WM831X_LDO6_SLEEP_CONTROL,
811 .flags = IORESOURCE_REG,
812 },
813 {
814 .name = "UV",
815 .start = WM831X_IRQ_UV_LDO6,
816 .end = WM831X_IRQ_UV_LDO6,
817 .flags = IORESOURCE_IRQ,
818 },
819};
820
821static struct resource wm831x_ldo7_resources[] = {
822 {
823 .start = WM831X_LDO7_CONTROL,
824 .end = WM831X_LDO7_SLEEP_CONTROL,
825 .flags = IORESOURCE_REG,
826 },
827 {
828 .name = "UV",
829 .start = WM831X_IRQ_UV_LDO7,
830 .end = WM831X_IRQ_UV_LDO7,
831 .flags = IORESOURCE_IRQ,
832 },
833};
834
835static struct resource wm831x_ldo8_resources[] = {
836 {
837 .start = WM831X_LDO8_CONTROL,
838 .end = WM831X_LDO8_SLEEP_CONTROL,
839 .flags = IORESOURCE_REG,
840 },
841 {
842 .name = "UV",
843 .start = WM831X_IRQ_UV_LDO8,
844 .end = WM831X_IRQ_UV_LDO8,
845 .flags = IORESOURCE_IRQ,
846 },
847};
848
849static struct resource wm831x_ldo9_resources[] = {
850 {
851 .start = WM831X_LDO9_CONTROL,
852 .end = WM831X_LDO9_SLEEP_CONTROL,
853 .flags = IORESOURCE_REG,
854 },
855 {
856 .name = "UV",
857 .start = WM831X_IRQ_UV_LDO9,
858 .end = WM831X_IRQ_UV_LDO9,
859 .flags = IORESOURCE_IRQ,
860 },
861};
862
863static struct resource wm831x_ldo10_resources[] = {
864 {
865 .start = WM831X_LDO10_CONTROL,
866 .end = WM831X_LDO10_SLEEP_CONTROL,
867 .flags = IORESOURCE_REG,
868 },
869 {
870 .name = "UV",
871 .start = WM831X_IRQ_UV_LDO10,
872 .end = WM831X_IRQ_UV_LDO10,
873 .flags = IORESOURCE_IRQ,
874 },
875};
876
877static struct resource wm831x_ldo11_resources[] = {
878 {
879 .start = WM831X_LDO11_ON_CONTROL,
880 .end = WM831X_LDO11_SLEEP_CONTROL,
881 .flags = IORESOURCE_REG,
882 },
883};
884
885static struct resource wm831x_on_resources[] = {
886 {
887 .start = WM831X_IRQ_ON,
888 .end = WM831X_IRQ_ON,
889 .flags = IORESOURCE_IRQ,
890 },
891};
892
893
894static struct resource wm831x_power_resources[] = {
895 {
896 .name = "SYSLO",
897 .start = WM831X_IRQ_PPM_SYSLO,
898 .end = WM831X_IRQ_PPM_SYSLO,
899 .flags = IORESOURCE_IRQ,
900 },
901 {
902 .name = "PWR SRC",
903 .start = WM831X_IRQ_PPM_PWR_SRC,
904 .end = WM831X_IRQ_PPM_PWR_SRC,
905 .flags = IORESOURCE_IRQ,
906 },
907 {
908 .name = "USB CURR",
909 .start = WM831X_IRQ_PPM_USB_CURR,
910 .end = WM831X_IRQ_PPM_USB_CURR,
911 .flags = IORESOURCE_IRQ,
912 },
913 {
914 .name = "BATT HOT",
915 .start = WM831X_IRQ_CHG_BATT_HOT,
916 .end = WM831X_IRQ_CHG_BATT_HOT,
917 .flags = IORESOURCE_IRQ,
918 },
919 {
920 .name = "BATT COLD",
921 .start = WM831X_IRQ_CHG_BATT_COLD,
922 .end = WM831X_IRQ_CHG_BATT_COLD,
923 .flags = IORESOURCE_IRQ,
924 },
925 {
926 .name = "BATT FAIL",
927 .start = WM831X_IRQ_CHG_BATT_FAIL,
928 .end = WM831X_IRQ_CHG_BATT_FAIL,
929 .flags = IORESOURCE_IRQ,
930 },
931 {
932 .name = "OV",
933 .start = WM831X_IRQ_CHG_OV,
934 .end = WM831X_IRQ_CHG_OV,
935 .flags = IORESOURCE_IRQ,
936 },
937 {
938 .name = "END",
939 .start = WM831X_IRQ_CHG_END,
940 .end = WM831X_IRQ_CHG_END,
941 .flags = IORESOURCE_IRQ,
942 },
943 {
944 .name = "TO",
945 .start = WM831X_IRQ_CHG_TO,
946 .end = WM831X_IRQ_CHG_TO,
947 .flags = IORESOURCE_IRQ,
948 },
949 {
950 .name = "MODE",
951 .start = WM831X_IRQ_CHG_MODE,
952 .end = WM831X_IRQ_CHG_MODE,
953 .flags = IORESOURCE_IRQ,
954 },
955 {
956 .name = "START",
957 .start = WM831X_IRQ_CHG_START,
958 .end = WM831X_IRQ_CHG_START,
959 .flags = IORESOURCE_IRQ,
960 },
961};
962
963static struct resource wm831x_rtc_resources[] = {
964 {
965 .name = "PER",
966 .start = WM831X_IRQ_RTC_PER,
967 .end = WM831X_IRQ_RTC_PER,
968 .flags = IORESOURCE_IRQ,
969 },
970 {
971 .name = "ALM",
972 .start = WM831X_IRQ_RTC_ALM,
973 .end = WM831X_IRQ_RTC_ALM,
974 .flags = IORESOURCE_IRQ,
975 },
976};
977
978static struct resource wm831x_status1_resources[] = {
979 {
980 .start = WM831X_STATUS_LED_1,
981 .end = WM831X_STATUS_LED_1,
982 .flags = IORESOURCE_REG,
983 },
984};
985
986static struct resource wm831x_status2_resources[] = {
987 {
988 .start = WM831X_STATUS_LED_2,
989 .end = WM831X_STATUS_LED_2,
990 .flags = IORESOURCE_REG,
991 },
992};
993
994static struct resource wm831x_touch_resources[] = {
995 {
996 .name = "TCHPD",
997 .start = WM831X_IRQ_TCHPD,
998 .end = WM831X_IRQ_TCHPD,
999 .flags = IORESOURCE_IRQ,
1000 },
1001 {
1002 .name = "TCHDATA",
1003 .start = WM831X_IRQ_TCHDATA,
1004 .end = WM831X_IRQ_TCHDATA,
1005 .flags = IORESOURCE_IRQ,
1006 },
1007};
1008
1009static struct resource wm831x_wdt_resources[] = {
1010 {
1011 .start = WM831X_IRQ_WDOG_TO,
1012 .end = WM831X_IRQ_WDOG_TO,
1013 .flags = IORESOURCE_IRQ,
1014 },
1015};
1016
1017static const struct mfd_cell wm8310_devs[] = {
1018 {
1019 .name = "wm831x-backup",
1020 },
1021 {
1022 .name = "wm831x-buckv",
1023 .id = 1,
1024 .num_resources = ARRAY_SIZE(wm831x_dcdc1_resources),
1025 .resources = wm831x_dcdc1_resources,
1026 },
1027 {
1028 .name = "wm831x-buckv",
1029 .id = 2,
1030 .num_resources = ARRAY_SIZE(wm831x_dcdc2_resources),
1031 .resources = wm831x_dcdc2_resources,
1032 },
1033 {
1034 .name = "wm831x-buckp",
1035 .id = 3,
1036 .num_resources = ARRAY_SIZE(wm831x_dcdc3_resources),
1037 .resources = wm831x_dcdc3_resources,
1038 },
1039 {
1040 .name = "wm831x-boostp",
1041 .id = 4,
1042 .num_resources = ARRAY_SIZE(wm831x_dcdc4_resources),
1043 .resources = wm831x_dcdc4_resources,
1044 },
1045 {
1046 .name = "wm831x-clk",
1047 },
1048 {
1049 .name = "wm831x-epe",
1050 .id = 1,
1051 },
1052 {
1053 .name = "wm831x-epe",
1054 .id = 2,
1055 },
1056 {
1057 .name = "wm831x-gpio",
1058 .num_resources = ARRAY_SIZE(wm831x_gpio_resources),
1059 .resources = wm831x_gpio_resources,
1060 },
1061 {
1062 .name = "wm831x-hwmon",
1063 },
1064 {
1065 .name = "wm831x-isink",
1066 .id = 1,
1067 .num_resources = ARRAY_SIZE(wm831x_isink1_resources),
1068 .resources = wm831x_isink1_resources,
1069 },
1070 {
1071 .name = "wm831x-isink",
1072 .id = 2,
1073 .num_resources = ARRAY_SIZE(wm831x_isink2_resources),
1074 .resources = wm831x_isink2_resources,
1075 },
1076 {
1077 .name = "wm831x-ldo",
1078 .id = 1,
1079 .num_resources = ARRAY_SIZE(wm831x_ldo1_resources),
1080 .resources = wm831x_ldo1_resources,
1081 },
1082 {
1083 .name = "wm831x-ldo",
1084 .id = 2,
1085 .num_resources = ARRAY_SIZE(wm831x_ldo2_resources),
1086 .resources = wm831x_ldo2_resources,
1087 },
1088 {
1089 .name = "wm831x-ldo",
1090 .id = 3,
1091 .num_resources = ARRAY_SIZE(wm831x_ldo3_resources),
1092 .resources = wm831x_ldo3_resources,
1093 },
1094 {
1095 .name = "wm831x-ldo",
1096 .id = 4,
1097 .num_resources = ARRAY_SIZE(wm831x_ldo4_resources),
1098 .resources = wm831x_ldo4_resources,
1099 },
1100 {
1101 .name = "wm831x-ldo",
1102 .id = 5,
1103 .num_resources = ARRAY_SIZE(wm831x_ldo5_resources),
1104 .resources = wm831x_ldo5_resources,
1105 },
1106 {
1107 .name = "wm831x-ldo",
1108 .id = 6,
1109 .num_resources = ARRAY_SIZE(wm831x_ldo6_resources),
1110 .resources = wm831x_ldo6_resources,
1111 },
1112 {
1113 .name = "wm831x-aldo",
1114 .id = 7,
1115 .num_resources = ARRAY_SIZE(wm831x_ldo7_resources),
1116 .resources = wm831x_ldo7_resources,
1117 },
1118 {
1119 .name = "wm831x-aldo",
1120 .id = 8,
1121 .num_resources = ARRAY_SIZE(wm831x_ldo8_resources),
1122 .resources = wm831x_ldo8_resources,
1123 },
1124 {
1125 .name = "wm831x-aldo",
1126 .id = 9,
1127 .num_resources = ARRAY_SIZE(wm831x_ldo9_resources),
1128 .resources = wm831x_ldo9_resources,
1129 },
1130 {
1131 .name = "wm831x-aldo",
1132 .id = 10,
1133 .num_resources = ARRAY_SIZE(wm831x_ldo10_resources),
1134 .resources = wm831x_ldo10_resources,
1135 },
1136 {
1137 .name = "wm831x-alive-ldo",
1138 .id = 11,
1139 .num_resources = ARRAY_SIZE(wm831x_ldo11_resources),
1140 .resources = wm831x_ldo11_resources,
1141 },
1142 {
1143 .name = "wm831x-on",
1144 .num_resources = ARRAY_SIZE(wm831x_on_resources),
1145 .resources = wm831x_on_resources,
1146 },
1147 {
1148 .name = "wm831x-power",
1149 .num_resources = ARRAY_SIZE(wm831x_power_resources),
1150 .resources = wm831x_power_resources,
1151 },
1152 {
1153 .name = "wm831x-status",
1154 .id = 1,
1155 .num_resources = ARRAY_SIZE(wm831x_status1_resources),
1156 .resources = wm831x_status1_resources,
1157 },
1158 {
1159 .name = "wm831x-status",
1160 .id = 2,
1161 .num_resources = ARRAY_SIZE(wm831x_status2_resources),
1162 .resources = wm831x_status2_resources,
1163 },
1164 {
1165 .name = "wm831x-watchdog",
1166 .num_resources = ARRAY_SIZE(wm831x_wdt_resources),
1167 .resources = wm831x_wdt_resources,
1168 },
1169};
1170
1171static const struct mfd_cell wm8311_devs[] = {
1172 {
1173 .name = "wm831x-backup",
1174 },
1175 {
1176 .name = "wm831x-buckv",
1177 .id = 1,
1178 .num_resources = ARRAY_SIZE(wm831x_dcdc1_resources),
1179 .resources = wm831x_dcdc1_resources,
1180 },
1181 {
1182 .name = "wm831x-buckv",
1183 .id = 2,
1184 .num_resources = ARRAY_SIZE(wm831x_dcdc2_resources),
1185 .resources = wm831x_dcdc2_resources,
1186 },
1187 {
1188 .name = "wm831x-buckp",
1189 .id = 3,
1190 .num_resources = ARRAY_SIZE(wm831x_dcdc3_resources),
1191 .resources = wm831x_dcdc3_resources,
1192 },
1193 {
1194 .name = "wm831x-boostp",
1195 .id = 4,
1196 .num_resources = ARRAY_SIZE(wm831x_dcdc4_resources),
1197 .resources = wm831x_dcdc4_resources,
1198 },
1199 {
1200 .name = "wm831x-clk",
1201 },
1202 {
1203 .name = "wm831x-epe",
1204 .id = 1,
1205 },
1206 {
1207 .name = "wm831x-epe",
1208 .id = 2,
1209 },
1210 {
1211 .name = "wm831x-gpio",
1212 .num_resources = ARRAY_SIZE(wm831x_gpio_resources),
1213 .resources = wm831x_gpio_resources,
1214 },
1215 {
1216 .name = "wm831x-hwmon",
1217 },
1218 {
1219 .name = "wm831x-isink",
1220 .id = 1,
1221 .num_resources = ARRAY_SIZE(wm831x_isink1_resources),
1222 .resources = wm831x_isink1_resources,
1223 },
1224 {
1225 .name = "wm831x-isink",
1226 .id = 2,
1227 .num_resources = ARRAY_SIZE(wm831x_isink2_resources),
1228 .resources = wm831x_isink2_resources,
1229 },
1230 {
1231 .name = "wm831x-ldo",
1232 .id = 1,
1233 .num_resources = ARRAY_SIZE(wm831x_ldo1_resources),
1234 .resources = wm831x_ldo1_resources,
1235 },
1236 {
1237 .name = "wm831x-ldo",
1238 .id = 2,
1239 .num_resources = ARRAY_SIZE(wm831x_ldo2_resources),
1240 .resources = wm831x_ldo2_resources,
1241 },
1242 {
1243 .name = "wm831x-ldo",
1244 .id = 3,
1245 .num_resources = ARRAY_SIZE(wm831x_ldo3_resources),
1246 .resources = wm831x_ldo3_resources,
1247 },
1248 {
1249 .name = "wm831x-ldo",
1250 .id = 4,
1251 .num_resources = ARRAY_SIZE(wm831x_ldo4_resources),
1252 .resources = wm831x_ldo4_resources,
1253 },
1254 {
1255 .name = "wm831x-ldo",
1256 .id = 5,
1257 .num_resources = ARRAY_SIZE(wm831x_ldo5_resources),
1258 .resources = wm831x_ldo5_resources,
1259 },
1260 {
1261 .name = "wm831x-aldo",
1262 .id = 7,
1263 .num_resources = ARRAY_SIZE(wm831x_ldo7_resources),
1264 .resources = wm831x_ldo7_resources,
1265 },
1266 {
1267 .name = "wm831x-alive-ldo",
1268 .id = 11,
1269 .num_resources = ARRAY_SIZE(wm831x_ldo11_resources),
1270 .resources = wm831x_ldo11_resources,
1271 },
1272 {
1273 .name = "wm831x-on",
1274 .num_resources = ARRAY_SIZE(wm831x_on_resources),
1275 .resources = wm831x_on_resources,
1276 },
1277 {
1278 .name = "wm831x-power",
1279 .num_resources = ARRAY_SIZE(wm831x_power_resources),
1280 .resources = wm831x_power_resources,
1281 },
1282 {
1283 .name = "wm831x-status",
1284 .id = 1,
1285 .num_resources = ARRAY_SIZE(wm831x_status1_resources),
1286 .resources = wm831x_status1_resources,
1287 },
1288 {
1289 .name = "wm831x-status",
1290 .id = 2,
1291 .num_resources = ARRAY_SIZE(wm831x_status2_resources),
1292 .resources = wm831x_status2_resources,
1293 },
1294 {
1295 .name = "wm831x-watchdog",
1296 .num_resources = ARRAY_SIZE(wm831x_wdt_resources),
1297 .resources = wm831x_wdt_resources,
1298 },
1299};
1300
1301static const struct mfd_cell wm8312_devs[] = {
1302 {
1303 .name = "wm831x-backup",
1304 },
1305 {
1306 .name = "wm831x-buckv",
1307 .id = 1,
1308 .num_resources = ARRAY_SIZE(wm831x_dcdc1_resources),
1309 .resources = wm831x_dcdc1_resources,
1310 },
1311 {
1312 .name = "wm831x-buckv",
1313 .id = 2,
1314 .num_resources = ARRAY_SIZE(wm831x_dcdc2_resources),
1315 .resources = wm831x_dcdc2_resources,
1316 },
1317 {
1318 .name = "wm831x-buckp",
1319 .id = 3,
1320 .num_resources = ARRAY_SIZE(wm831x_dcdc3_resources),
1321 .resources = wm831x_dcdc3_resources,
1322 },
1323 {
1324 .name = "wm831x-boostp",
1325 .id = 4,
1326 .num_resources = ARRAY_SIZE(wm831x_dcdc4_resources),
1327 .resources = wm831x_dcdc4_resources,
1328 },
1329 {
1330 .name = "wm831x-clk",
1331 },
1332 {
1333 .name = "wm831x-epe",
1334 .id = 1,
1335 },
1336 {
1337 .name = "wm831x-epe",
1338 .id = 2,
1339 },
1340 {
1341 .name = "wm831x-gpio",
1342 .num_resources = ARRAY_SIZE(wm831x_gpio_resources),
1343 .resources = wm831x_gpio_resources,
1344 },
1345 {
1346 .name = "wm831x-hwmon",
1347 },
1348 {
1349 .name = "wm831x-isink",
1350 .id = 1,
1351 .num_resources = ARRAY_SIZE(wm831x_isink1_resources),
1352 .resources = wm831x_isink1_resources,
1353 },
1354 {
1355 .name = "wm831x-isink",
1356 .id = 2,
1357 .num_resources = ARRAY_SIZE(wm831x_isink2_resources),
1358 .resources = wm831x_isink2_resources,
1359 },
1360 {
1361 .name = "wm831x-ldo",
1362 .id = 1,
1363 .num_resources = ARRAY_SIZE(wm831x_ldo1_resources),
1364 .resources = wm831x_ldo1_resources,
1365 },
1366 {
1367 .name = "wm831x-ldo",
1368 .id = 2,
1369 .num_resources = ARRAY_SIZE(wm831x_ldo2_resources),
1370 .resources = wm831x_ldo2_resources,
1371 },
1372 {
1373 .name = "wm831x-ldo",
1374 .id = 3,
1375 .num_resources = ARRAY_SIZE(wm831x_ldo3_resources),
1376 .resources = wm831x_ldo3_resources,
1377 },
1378 {
1379 .name = "wm831x-ldo",
1380 .id = 4,
1381 .num_resources = ARRAY_SIZE(wm831x_ldo4_resources),
1382 .resources = wm831x_ldo4_resources,
1383 },
1384 {
1385 .name = "wm831x-ldo",
1386 .id = 5,
1387 .num_resources = ARRAY_SIZE(wm831x_ldo5_resources),
1388 .resources = wm831x_ldo5_resources,
1389 },
1390 {
1391 .name = "wm831x-ldo",
1392 .id = 6,
1393 .num_resources = ARRAY_SIZE(wm831x_ldo6_resources),
1394 .resources = wm831x_ldo6_resources,
1395 },
1396 {
1397 .name = "wm831x-aldo",
1398 .id = 7,
1399 .num_resources = ARRAY_SIZE(wm831x_ldo7_resources),
1400 .resources = wm831x_ldo7_resources,
1401 },
1402 {
1403 .name = "wm831x-aldo",
1404 .id = 8,
1405 .num_resources = ARRAY_SIZE(wm831x_ldo8_resources),
1406 .resources = wm831x_ldo8_resources,
1407 },
1408 {
1409 .name = "wm831x-aldo",
1410 .id = 9,
1411 .num_resources = ARRAY_SIZE(wm831x_ldo9_resources),
1412 .resources = wm831x_ldo9_resources,
1413 },
1414 {
1415 .name = "wm831x-aldo",
1416 .id = 10,
1417 .num_resources = ARRAY_SIZE(wm831x_ldo10_resources),
1418 .resources = wm831x_ldo10_resources,
1419 },
1420 {
1421 .name = "wm831x-alive-ldo",
1422 .id = 11,
1423 .num_resources = ARRAY_SIZE(wm831x_ldo11_resources),
1424 .resources = wm831x_ldo11_resources,
1425 },
1426 {
1427 .name = "wm831x-on",
1428 .num_resources = ARRAY_SIZE(wm831x_on_resources),
1429 .resources = wm831x_on_resources,
1430 },
1431 {
1432 .name = "wm831x-power",
1433 .num_resources = ARRAY_SIZE(wm831x_power_resources),
1434 .resources = wm831x_power_resources,
1435 },
1436 {
1437 .name = "wm831x-status",
1438 .id = 1,
1439 .num_resources = ARRAY_SIZE(wm831x_status1_resources),
1440 .resources = wm831x_status1_resources,
1441 },
1442 {
1443 .name = "wm831x-status",
1444 .id = 2,
1445 .num_resources = ARRAY_SIZE(wm831x_status2_resources),
1446 .resources = wm831x_status2_resources,
1447 },
1448 {
1449 .name = "wm831x-watchdog",
1450 .num_resources = ARRAY_SIZE(wm831x_wdt_resources),
1451 .resources = wm831x_wdt_resources,
1452 },
1453};
1454
1455static const struct mfd_cell wm8320_devs[] = {
1456 {
1457 .name = "wm831x-backup",
1458 },
1459 {
1460 .name = "wm831x-buckv",
1461 .id = 1,
1462 .num_resources = ARRAY_SIZE(wm831x_dcdc1_resources),
1463 .resources = wm831x_dcdc1_resources,
1464 },
1465 {
1466 .name = "wm831x-buckv",
1467 .id = 2,
1468 .num_resources = ARRAY_SIZE(wm831x_dcdc2_resources),
1469 .resources = wm831x_dcdc2_resources,
1470 },
1471 {
1472 .name = "wm831x-buckp",
1473 .id = 3,
1474 .num_resources = ARRAY_SIZE(wm831x_dcdc3_resources),
1475 .resources = wm831x_dcdc3_resources,
1476 },
1477 {
1478 .name = "wm831x-buckp",
1479 .id = 4,
1480 .num_resources = ARRAY_SIZE(wm8320_dcdc4_buck_resources),
1481 .resources = wm8320_dcdc4_buck_resources,
1482 },
1483 {
1484 .name = "wm831x-clk",
1485 },
1486 {
1487 .name = "wm831x-gpio",
1488 .num_resources = ARRAY_SIZE(wm831x_gpio_resources),
1489 .resources = wm831x_gpio_resources,
1490 },
1491 {
1492 .name = "wm831x-hwmon",
1493 },
1494 {
1495 .name = "wm831x-ldo",
1496 .id = 1,
1497 .num_resources = ARRAY_SIZE(wm831x_ldo1_resources),
1498 .resources = wm831x_ldo1_resources,
1499 },
1500 {
1501 .name = "wm831x-ldo",
1502 .id = 2,
1503 .num_resources = ARRAY_SIZE(wm831x_ldo2_resources),
1504 .resources = wm831x_ldo2_resources,
1505 },
1506 {
1507 .name = "wm831x-ldo",
1508 .id = 3,
1509 .num_resources = ARRAY_SIZE(wm831x_ldo3_resources),
1510 .resources = wm831x_ldo3_resources,
1511 },
1512 {
1513 .name = "wm831x-ldo",
1514 .id = 4,
1515 .num_resources = ARRAY_SIZE(wm831x_ldo4_resources),
1516 .resources = wm831x_ldo4_resources,
1517 },
1518 {
1519 .name = "wm831x-ldo",
1520 .id = 5,
1521 .num_resources = ARRAY_SIZE(wm831x_ldo5_resources),
1522 .resources = wm831x_ldo5_resources,
1523 },
1524 {
1525 .name = "wm831x-ldo",
1526 .id = 6,
1527 .num_resources = ARRAY_SIZE(wm831x_ldo6_resources),
1528 .resources = wm831x_ldo6_resources,
1529 },
1530 {
1531 .name = "wm831x-aldo",
1532 .id = 7,
1533 .num_resources = ARRAY_SIZE(wm831x_ldo7_resources),
1534 .resources = wm831x_ldo7_resources,
1535 },
1536 {
1537 .name = "wm831x-aldo",
1538 .id = 8,
1539 .num_resources = ARRAY_SIZE(wm831x_ldo8_resources),
1540 .resources = wm831x_ldo8_resources,
1541 },
1542 {
1543 .name = "wm831x-aldo",
1544 .id = 9,
1545 .num_resources = ARRAY_SIZE(wm831x_ldo9_resources),
1546 .resources = wm831x_ldo9_resources,
1547 },
1548 {
1549 .name = "wm831x-aldo",
1550 .id = 10,
1551 .num_resources = ARRAY_SIZE(wm831x_ldo10_resources),
1552 .resources = wm831x_ldo10_resources,
1553 },
1554 {
1555 .name = "wm831x-alive-ldo",
1556 .id = 11,
1557 .num_resources = ARRAY_SIZE(wm831x_ldo11_resources),
1558 .resources = wm831x_ldo11_resources,
1559 },
1560 {
1561 .name = "wm831x-on",
1562 .num_resources = ARRAY_SIZE(wm831x_on_resources),
1563 .resources = wm831x_on_resources,
1564 },
1565 {
1566 .name = "wm831x-status",
1567 .id = 1,
1568 .num_resources = ARRAY_SIZE(wm831x_status1_resources),
1569 .resources = wm831x_status1_resources,
1570 },
1571 {
1572 .name = "wm831x-status",
1573 .id = 2,
1574 .num_resources = ARRAY_SIZE(wm831x_status2_resources),
1575 .resources = wm831x_status2_resources,
1576 },
1577 {
1578 .name = "wm831x-watchdog",
1579 .num_resources = ARRAY_SIZE(wm831x_wdt_resources),
1580 .resources = wm831x_wdt_resources,
1581 },
1582};
1583
1584static const struct mfd_cell touch_devs[] = {
1585 {
1586 .name = "wm831x-touch",
1587 .num_resources = ARRAY_SIZE(wm831x_touch_resources),
1588 .resources = wm831x_touch_resources,
1589 },
1590};
1591
1592static const struct mfd_cell rtc_devs[] = {
1593 {
1594 .name = "wm831x-rtc",
1595 .num_resources = ARRAY_SIZE(wm831x_rtc_resources),
1596 .resources = wm831x_rtc_resources,
1597 },
1598};
1599
1600static const struct mfd_cell backlight_devs[] = {
1601 {
1602 .name = "wm831x-backlight",
1603 },
1604};
1605
1606struct regmap_config wm831x_regmap_config = {
1607 .reg_bits = 16,
1608 .val_bits = 16,
1609
1610 .cache_type = REGCACHE_RBTREE,
1611
1612 .max_register = WM831X_DBE_CHECK_DATA,
1613 .readable_reg = wm831x_reg_readable,
1614 .writeable_reg = wm831x_reg_writeable,
1615 .volatile_reg = wm831x_reg_volatile,
1616};
1617EXPORT_SYMBOL_GPL(wm831x_regmap_config);
1618
1619const struct of_device_id wm831x_of_match[] = {
1620 { .compatible = "wlf,wm8310", .data = (void *)WM8310 },
1621 { .compatible = "wlf,wm8311", .data = (void *)WM8311 },
1622 { .compatible = "wlf,wm8312", .data = (void *)WM8312 },
1623 { .compatible = "wlf,wm8320", .data = (void *)WM8320 },
1624 { .compatible = "wlf,wm8321", .data = (void *)WM8321 },
1625 { .compatible = "wlf,wm8325", .data = (void *)WM8325 },
1626 { .compatible = "wlf,wm8326", .data = (void *)WM8326 },
1627 { },
1628};
1629EXPORT_SYMBOL_GPL(wm831x_of_match);
1630
1631/*
1632 * Instantiate the generic non-control parts of the device.
1633 */
1634int wm831x_device_init(struct wm831x *wm831x, int irq)
1635{
1636 struct wm831x_pdata *pdata = &wm831x->pdata;
1637 int rev, wm831x_num;
1638 enum wm831x_parent parent;
1639 int ret, i;
1640
1641 mutex_init(&wm831x->io_lock);
1642 mutex_init(&wm831x->key_lock);
1643 dev_set_drvdata(wm831x->dev, wm831x);
1644
1645 wm831x->soft_shutdown = pdata->soft_shutdown;
1646
1647 ret = wm831x_reg_read(wm831x, WM831X_PARENT_ID);
1648 if (ret < 0) {
1649 dev_err(wm831x->dev, "Failed to read parent ID: %d\n", ret);
1650 goto err;
1651 }
1652 switch (ret) {
1653 case 0x6204:
1654 case 0x6246:
1655 break;
1656 default:
1657 dev_err(wm831x->dev, "Device is not a WM831x: ID %x\n", ret);
1658 ret = -EINVAL;
1659 goto err;
1660 }
1661
1662 ret = wm831x_reg_read(wm831x, WM831X_REVISION);
1663 if (ret < 0) {
1664 dev_err(wm831x->dev, "Failed to read revision: %d\n", ret);
1665 goto err;
1666 }
1667 rev = (ret & WM831X_PARENT_REV_MASK) >> WM831X_PARENT_REV_SHIFT;
1668
1669 ret = wm831x_reg_read(wm831x, WM831X_RESET_ID);
1670 if (ret < 0) {
1671 dev_err(wm831x->dev, "Failed to read device ID: %d\n", ret);
1672 goto err;
1673 }
1674
1675 /* Some engineering samples do not have the ID set, rely on
1676 * the device being registered correctly.
1677 */
1678 if (ret == 0) {
1679 dev_info(wm831x->dev, "Device is an engineering sample\n");
1680 ret = wm831x->type;
1681 }
1682
1683 switch (ret) {
1684 case WM8310:
1685 parent = WM8310;
1686 wm831x->num_gpio = 16;
1687 wm831x->charger_irq_wake = 1;
1688 if (rev > 0) {
1689 wm831x->has_gpio_ena = 1;
1690 wm831x->has_cs_sts = 1;
1691 }
1692
1693 dev_info(wm831x->dev, "WM8310 revision %c\n", 'A' + rev);
1694 break;
1695
1696 case WM8311:
1697 parent = WM8311;
1698 wm831x->num_gpio = 16;
1699 wm831x->charger_irq_wake = 1;
1700 if (rev > 0) {
1701 wm831x->has_gpio_ena = 1;
1702 wm831x->has_cs_sts = 1;
1703 }
1704
1705 dev_info(wm831x->dev, "WM8311 revision %c\n", 'A' + rev);
1706 break;
1707
1708 case WM8312:
1709 parent = WM8312;
1710 wm831x->num_gpio = 16;
1711 wm831x->charger_irq_wake = 1;
1712 if (rev > 0) {
1713 wm831x->has_gpio_ena = 1;
1714 wm831x->has_cs_sts = 1;
1715 }
1716
1717 dev_info(wm831x->dev, "WM8312 revision %c\n", 'A' + rev);
1718 break;
1719
1720 case WM8320:
1721 parent = WM8320;
1722 wm831x->num_gpio = 12;
1723 dev_info(wm831x->dev, "WM8320 revision %c\n", 'A' + rev);
1724 break;
1725
1726 case WM8321:
1727 parent = WM8321;
1728 wm831x->num_gpio = 12;
1729 dev_info(wm831x->dev, "WM8321 revision %c\n", 'A' + rev);
1730 break;
1731
1732 case WM8325:
1733 parent = WM8325;
1734 wm831x->num_gpio = 12;
1735 dev_info(wm831x->dev, "WM8325 revision %c\n", 'A' + rev);
1736 break;
1737
1738 case WM8326:
1739 parent = WM8326;
1740 wm831x->num_gpio = 12;
1741 dev_info(wm831x->dev, "WM8326 revision %c\n", 'A' + rev);
1742 break;
1743
1744 default:
1745 dev_err(wm831x->dev, "Unknown WM831x device %04x\n", ret);
1746 ret = -EINVAL;
1747 goto err;
1748 }
1749
1750 /* This will need revisiting in future but is OK for all
1751 * current parts.
1752 */
1753 if (parent != wm831x->type)
1754 dev_warn(wm831x->dev, "Device was registered as a WM%x\n",
1755 wm831x->type);
1756
1757 /* Bootstrap the user key */
1758 ret = wm831x_reg_read(wm831x, WM831X_SECURITY_KEY);
1759 if (ret < 0) {
1760 dev_err(wm831x->dev, "Failed to read security key: %d\n", ret);
1761 goto err;
1762 }
1763 if (ret != 0) {
1764 dev_warn(wm831x->dev, "Security key had non-zero value %x\n",
1765 ret);
1766 wm831x_reg_write(wm831x, WM831X_SECURITY_KEY, 0);
1767 }
1768 wm831x->locked = 1;
1769
1770 if (pdata->pre_init) {
1771 ret = pdata->pre_init(wm831x);
1772 if (ret != 0) {
1773 dev_err(wm831x->dev, "pre_init() failed: %d\n", ret);
1774 goto err;
1775 }
1776 }
1777
1778 for (i = 0; i < ARRAY_SIZE(pdata->gpio_defaults); i++) {
1779 if (!pdata->gpio_defaults[i])
1780 continue;
1781
1782 wm831x_reg_write(wm831x,
1783 WM831X_GPIO1_CONTROL + i,
1784 pdata->gpio_defaults[i] & 0xffff);
1785 }
1786
1787 /* Multiply by 10 as we have many subdevices of the same type */
1788 if (pdata->wm831x_num)
1789 wm831x_num = pdata->wm831x_num * 10;
1790 else
1791 wm831x_num = -1;
1792
1793 ret = wm831x_irq_init(wm831x, irq);
1794 if (ret != 0)
1795 goto err;
1796
1797 wm831x_auxadc_init(wm831x);
1798
1799 /* The core device is up, instantiate the subdevices. */
1800 switch (parent) {
1801 case WM8310:
1802 ret = mfd_add_devices(wm831x->dev, wm831x_num,
1803 wm8310_devs, ARRAY_SIZE(wm8310_devs),
1804 NULL, 0, NULL);
1805 break;
1806
1807 case WM8311:
1808 ret = mfd_add_devices(wm831x->dev, wm831x_num,
1809 wm8311_devs, ARRAY_SIZE(wm8311_devs),
1810 NULL, 0, NULL);
1811 if (!pdata->disable_touch)
1812 mfd_add_devices(wm831x->dev, wm831x_num,
1813 touch_devs, ARRAY_SIZE(touch_devs),
1814 NULL, 0, NULL);
1815 break;
1816
1817 case WM8312:
1818 ret = mfd_add_devices(wm831x->dev, wm831x_num,
1819 wm8312_devs, ARRAY_SIZE(wm8312_devs),
1820 NULL, 0, NULL);
1821 if (!pdata->disable_touch)
1822 mfd_add_devices(wm831x->dev, wm831x_num,
1823 touch_devs, ARRAY_SIZE(touch_devs),
1824 NULL, 0, NULL);
1825 break;
1826
1827 case WM8320:
1828 case WM8321:
1829 case WM8325:
1830 case WM8326:
1831 ret = mfd_add_devices(wm831x->dev, wm831x_num,
1832 wm8320_devs, ARRAY_SIZE(wm8320_devs),
1833 NULL, 0, NULL);
1834 break;
1835
1836 default:
1837 /* If this happens the bus probe function is buggy */
1838 BUG();
1839 }
1840
1841 if (ret != 0) {
1842 dev_err(wm831x->dev, "Failed to add children\n");
1843 goto err_irq;
1844 }
1845
1846 /* The RTC can only be used if the 32.768kHz crystal is
1847 * enabled; this can't be controlled by software at runtime.
1848 */
1849 ret = wm831x_reg_read(wm831x, WM831X_CLOCK_CONTROL_2);
1850 if (ret < 0) {
1851 dev_err(wm831x->dev, "Failed to read clock status: %d\n", ret);
1852 goto err_irq;
1853 }
1854
1855 if (ret & WM831X_XTAL_ENA) {
1856 ret = mfd_add_devices(wm831x->dev, wm831x_num,
1857 rtc_devs, ARRAY_SIZE(rtc_devs),
1858 NULL, 0, NULL);
1859 if (ret != 0) {
1860 dev_err(wm831x->dev, "Failed to add RTC: %d\n", ret);
1861 goto err_irq;
1862 }
1863 } else {
1864 dev_info(wm831x->dev, "32.768kHz clock disabled, no RTC\n");
1865 }
1866
1867 if (pdata->backlight) {
1868 /* Treat errors as non-critical */
1869 ret = mfd_add_devices(wm831x->dev, wm831x_num, backlight_devs,
1870 ARRAY_SIZE(backlight_devs), NULL,
1871 0, NULL);
1872 if (ret < 0)
1873 dev_err(wm831x->dev, "Failed to add backlight: %d\n",
1874 ret);
1875 }
1876
1877 wm831x_otp_init(wm831x);
1878
1879 if (pdata->post_init) {
1880 ret = pdata->post_init(wm831x);
1881 if (ret != 0) {
1882 dev_err(wm831x->dev, "post_init() failed: %d\n", ret);
1883 goto err_irq;
1884 }
1885 }
1886
1887 return 0;
1888
1889err_irq:
1890 wm831x_irq_exit(wm831x);
1891err:
1892 mfd_remove_devices(wm831x->dev);
1893 return ret;
1894}
1895
1896int wm831x_device_suspend(struct wm831x *wm831x)
1897{
1898 int reg, mask;
1899
1900 /* If the charger IRQs are a wake source then make sure we ack
1901 * them even if they're not actively being used (eg, no power
1902 * driver or no IRQ line wired up) then acknowledge the
1903 * interrupts otherwise suspend won't last very long.
1904 */
1905 if (wm831x->charger_irq_wake) {
1906 reg = wm831x_reg_read(wm831x, WM831X_INTERRUPT_STATUS_2_MASK);
1907
1908 mask = WM831X_CHG_BATT_HOT_EINT |
1909 WM831X_CHG_BATT_COLD_EINT |
1910 WM831X_CHG_BATT_FAIL_EINT |
1911 WM831X_CHG_OV_EINT | WM831X_CHG_END_EINT |
1912 WM831X_CHG_TO_EINT | WM831X_CHG_MODE_EINT |
1913 WM831X_CHG_START_EINT;
1914
1915 /* If any of the interrupts are masked read the statuses */
1916 if (reg & mask)
1917 reg = wm831x_reg_read(wm831x,
1918 WM831X_INTERRUPT_STATUS_2);
1919
1920 if (reg & mask) {
1921 dev_info(wm831x->dev,
1922 "Acknowledging masked charger IRQs: %x\n",
1923 reg & mask);
1924 wm831x_reg_write(wm831x, WM831X_INTERRUPT_STATUS_2,
1925 reg & mask);
1926 }
1927 }
1928
1929 return 0;
1930}
1931
1932void wm831x_device_shutdown(struct wm831x *wm831x)
1933{
1934 if (wm831x->soft_shutdown) {
1935 dev_info(wm831x->dev, "Initiating shutdown...\n");
1936 wm831x_set_bits(wm831x, WM831X_POWER_STATE, WM831X_CHIP_ON, 0);
1937 }
1938}
1939EXPORT_SYMBOL_GPL(wm831x_device_shutdown);
1940