Loading...
1// SPDX-License-Identifier: GPL-2.0-or-later
2/*
3 * wm831x-core.c -- Device access for Wolfson WM831x PMICs
4 *
5 * Copyright 2009 Wolfson Microelectronics PLC.
6 *
7 * Author: Mark Brown <broonie@opensource.wolfsonmicro.com>
8 */
9
10#include <linux/kernel.h>
11#include <linux/init.h>
12#include <linux/export.h>
13#include <linux/bcd.h>
14#include <linux/delay.h>
15#include <linux/mfd/core.h>
16#include <linux/slab.h>
17#include <linux/err.h>
18#include <linux/mod_devicetable.h>
19
20#include <linux/mfd/wm831x/core.h>
21#include <linux/mfd/wm831x/pdata.h>
22#include <linux/mfd/wm831x/irq.h>
23#include <linux/mfd/wm831x/auxadc.h>
24#include <linux/mfd/wm831x/otp.h>
25#include <linux/mfd/wm831x/pmu.h>
26#include <linux/mfd/wm831x/regulator.h>
27
28/* Current settings - values are 2*2^(reg_val/4) microamps. These are
29 * exported since they are used by multiple drivers.
30 */
31const unsigned int wm831x_isinkv_values[WM831X_ISINK_MAX_ISEL + 1] = {
32 2,
33 2,
34 3,
35 3,
36 4,
37 5,
38 6,
39 7,
40 8,
41 10,
42 11,
43 13,
44 16,
45 19,
46 23,
47 27,
48 32,
49 38,
50 45,
51 54,
52 64,
53 76,
54 91,
55 108,
56 128,
57 152,
58 181,
59 215,
60 256,
61 304,
62 362,
63 431,
64 512,
65 609,
66 724,
67 861,
68 1024,
69 1218,
70 1448,
71 1722,
72 2048,
73 2435,
74 2896,
75 3444,
76 4096,
77 4871,
78 5793,
79 6889,
80 8192,
81 9742,
82 11585,
83 13777,
84 16384,
85 19484,
86 23170,
87 27554,
88};
89EXPORT_SYMBOL_GPL(wm831x_isinkv_values);
90
91static int wm831x_reg_locked(struct wm831x *wm831x, unsigned short reg)
92{
93 if (!wm831x->locked)
94 return 0;
95
96 switch (reg) {
97 case WM831X_WATCHDOG:
98 case WM831X_DC4_CONTROL:
99 case WM831X_ON_PIN_CONTROL:
100 case WM831X_BACKUP_CHARGER_CONTROL:
101 case WM831X_CHARGER_CONTROL_1:
102 case WM831X_CHARGER_CONTROL_2:
103 return 1;
104
105 default:
106 return 0;
107 }
108}
109
110/**
111 * wm831x_reg_lock: Unlock user keyed registers
112 *
113 * The WM831x has a user key preventing writes to particularly
114 * critical registers. This function locks those registers,
115 * allowing writes to them.
116 *
117 * @wm831x: pointer to local driver data structure
118 */
119void wm831x_reg_lock(struct wm831x *wm831x)
120{
121 int ret;
122
123 ret = wm831x_reg_write(wm831x, WM831X_SECURITY_KEY, 0);
124 if (ret == 0) {
125 dev_vdbg(wm831x->dev, "Registers locked\n");
126
127 mutex_lock(&wm831x->io_lock);
128 WARN_ON(wm831x->locked);
129 wm831x->locked = 1;
130 mutex_unlock(&wm831x->io_lock);
131 } else {
132 dev_err(wm831x->dev, "Failed to lock registers: %d\n", ret);
133 }
134
135}
136EXPORT_SYMBOL_GPL(wm831x_reg_lock);
137
138/**
139 * wm831x_reg_unlock: Unlock user keyed registers
140 *
141 * The WM831x has a user key preventing writes to particularly
142 * critical registers. This function locks those registers,
143 * preventing spurious writes.
144 *
145 * @wm831x: pointer to local driver data structure
146 */
147int wm831x_reg_unlock(struct wm831x *wm831x)
148{
149 int ret;
150
151 /* 0x9716 is the value required to unlock the registers */
152 ret = wm831x_reg_write(wm831x, WM831X_SECURITY_KEY, 0x9716);
153 if (ret == 0) {
154 dev_vdbg(wm831x->dev, "Registers unlocked\n");
155
156 mutex_lock(&wm831x->io_lock);
157 WARN_ON(!wm831x->locked);
158 wm831x->locked = 0;
159 mutex_unlock(&wm831x->io_lock);
160 }
161
162 return ret;
163}
164EXPORT_SYMBOL_GPL(wm831x_reg_unlock);
165
166static bool wm831x_reg_readable(struct device *dev, unsigned int reg)
167{
168 switch (reg) {
169 case WM831X_RESET_ID:
170 case WM831X_REVISION:
171 case WM831X_PARENT_ID:
172 case WM831X_SYSVDD_CONTROL:
173 case WM831X_THERMAL_MONITORING:
174 case WM831X_POWER_STATE:
175 case WM831X_WATCHDOG:
176 case WM831X_ON_PIN_CONTROL:
177 case WM831X_RESET_CONTROL:
178 case WM831X_CONTROL_INTERFACE:
179 case WM831X_SECURITY_KEY:
180 case WM831X_SOFTWARE_SCRATCH:
181 case WM831X_OTP_CONTROL:
182 case WM831X_GPIO_LEVEL:
183 case WM831X_SYSTEM_STATUS:
184 case WM831X_ON_SOURCE:
185 case WM831X_OFF_SOURCE:
186 case WM831X_SYSTEM_INTERRUPTS:
187 case WM831X_INTERRUPT_STATUS_1:
188 case WM831X_INTERRUPT_STATUS_2:
189 case WM831X_INTERRUPT_STATUS_3:
190 case WM831X_INTERRUPT_STATUS_4:
191 case WM831X_INTERRUPT_STATUS_5:
192 case WM831X_IRQ_CONFIG:
193 case WM831X_SYSTEM_INTERRUPTS_MASK:
194 case WM831X_INTERRUPT_STATUS_1_MASK:
195 case WM831X_INTERRUPT_STATUS_2_MASK:
196 case WM831X_INTERRUPT_STATUS_3_MASK:
197 case WM831X_INTERRUPT_STATUS_4_MASK:
198 case WM831X_INTERRUPT_STATUS_5_MASK:
199 case WM831X_RTC_WRITE_COUNTER:
200 case WM831X_RTC_TIME_1:
201 case WM831X_RTC_TIME_2:
202 case WM831X_RTC_ALARM_1:
203 case WM831X_RTC_ALARM_2:
204 case WM831X_RTC_CONTROL:
205 case WM831X_RTC_TRIM:
206 case WM831X_TOUCH_CONTROL_1:
207 case WM831X_TOUCH_CONTROL_2:
208 case WM831X_TOUCH_DATA_X:
209 case WM831X_TOUCH_DATA_Y:
210 case WM831X_TOUCH_DATA_Z:
211 case WM831X_AUXADC_DATA:
212 case WM831X_AUXADC_CONTROL:
213 case WM831X_AUXADC_SOURCE:
214 case WM831X_COMPARATOR_CONTROL:
215 case WM831X_COMPARATOR_1:
216 case WM831X_COMPARATOR_2:
217 case WM831X_COMPARATOR_3:
218 case WM831X_COMPARATOR_4:
219 case WM831X_GPIO1_CONTROL:
220 case WM831X_GPIO2_CONTROL:
221 case WM831X_GPIO3_CONTROL:
222 case WM831X_GPIO4_CONTROL:
223 case WM831X_GPIO5_CONTROL:
224 case WM831X_GPIO6_CONTROL:
225 case WM831X_GPIO7_CONTROL:
226 case WM831X_GPIO8_CONTROL:
227 case WM831X_GPIO9_CONTROL:
228 case WM831X_GPIO10_CONTROL:
229 case WM831X_GPIO11_CONTROL:
230 case WM831X_GPIO12_CONTROL:
231 case WM831X_GPIO13_CONTROL:
232 case WM831X_GPIO14_CONTROL:
233 case WM831X_GPIO15_CONTROL:
234 case WM831X_GPIO16_CONTROL:
235 case WM831X_CHARGER_CONTROL_1:
236 case WM831X_CHARGER_CONTROL_2:
237 case WM831X_CHARGER_STATUS:
238 case WM831X_BACKUP_CHARGER_CONTROL:
239 case WM831X_STATUS_LED_1:
240 case WM831X_STATUS_LED_2:
241 case WM831X_CURRENT_SINK_1:
242 case WM831X_CURRENT_SINK_2:
243 case WM831X_DCDC_ENABLE:
244 case WM831X_LDO_ENABLE:
245 case WM831X_DCDC_STATUS:
246 case WM831X_LDO_STATUS:
247 case WM831X_DCDC_UV_STATUS:
248 case WM831X_LDO_UV_STATUS:
249 case WM831X_DC1_CONTROL_1:
250 case WM831X_DC1_CONTROL_2:
251 case WM831X_DC1_ON_CONFIG:
252 case WM831X_DC1_SLEEP_CONTROL:
253 case WM831X_DC1_DVS_CONTROL:
254 case WM831X_DC2_CONTROL_1:
255 case WM831X_DC2_CONTROL_2:
256 case WM831X_DC2_ON_CONFIG:
257 case WM831X_DC2_SLEEP_CONTROL:
258 case WM831X_DC2_DVS_CONTROL:
259 case WM831X_DC3_CONTROL_1:
260 case WM831X_DC3_CONTROL_2:
261 case WM831X_DC3_ON_CONFIG:
262 case WM831X_DC3_SLEEP_CONTROL:
263 case WM831X_DC4_CONTROL:
264 case WM831X_DC4_SLEEP_CONTROL:
265 case WM831X_EPE1_CONTROL:
266 case WM831X_EPE2_CONTROL:
267 case WM831X_LDO1_CONTROL:
268 case WM831X_LDO1_ON_CONTROL:
269 case WM831X_LDO1_SLEEP_CONTROL:
270 case WM831X_LDO2_CONTROL:
271 case WM831X_LDO2_ON_CONTROL:
272 case WM831X_LDO2_SLEEP_CONTROL:
273 case WM831X_LDO3_CONTROL:
274 case WM831X_LDO3_ON_CONTROL:
275 case WM831X_LDO3_SLEEP_CONTROL:
276 case WM831X_LDO4_CONTROL:
277 case WM831X_LDO4_ON_CONTROL:
278 case WM831X_LDO4_SLEEP_CONTROL:
279 case WM831X_LDO5_CONTROL:
280 case WM831X_LDO5_ON_CONTROL:
281 case WM831X_LDO5_SLEEP_CONTROL:
282 case WM831X_LDO6_CONTROL:
283 case WM831X_LDO6_ON_CONTROL:
284 case WM831X_LDO6_SLEEP_CONTROL:
285 case WM831X_LDO7_CONTROL:
286 case WM831X_LDO7_ON_CONTROL:
287 case WM831X_LDO7_SLEEP_CONTROL:
288 case WM831X_LDO8_CONTROL:
289 case WM831X_LDO8_ON_CONTROL:
290 case WM831X_LDO8_SLEEP_CONTROL:
291 case WM831X_LDO9_CONTROL:
292 case WM831X_LDO9_ON_CONTROL:
293 case WM831X_LDO9_SLEEP_CONTROL:
294 case WM831X_LDO10_CONTROL:
295 case WM831X_LDO10_ON_CONTROL:
296 case WM831X_LDO10_SLEEP_CONTROL:
297 case WM831X_LDO11_ON_CONTROL:
298 case WM831X_LDO11_SLEEP_CONTROL:
299 case WM831X_POWER_GOOD_SOURCE_1:
300 case WM831X_POWER_GOOD_SOURCE_2:
301 case WM831X_CLOCK_CONTROL_1:
302 case WM831X_CLOCK_CONTROL_2:
303 case WM831X_FLL_CONTROL_1:
304 case WM831X_FLL_CONTROL_2:
305 case WM831X_FLL_CONTROL_3:
306 case WM831X_FLL_CONTROL_4:
307 case WM831X_FLL_CONTROL_5:
308 case WM831X_UNIQUE_ID_1:
309 case WM831X_UNIQUE_ID_2:
310 case WM831X_UNIQUE_ID_3:
311 case WM831X_UNIQUE_ID_4:
312 case WM831X_UNIQUE_ID_5:
313 case WM831X_UNIQUE_ID_6:
314 case WM831X_UNIQUE_ID_7:
315 case WM831X_UNIQUE_ID_8:
316 case WM831X_FACTORY_OTP_ID:
317 case WM831X_FACTORY_OTP_1:
318 case WM831X_FACTORY_OTP_2:
319 case WM831X_FACTORY_OTP_3:
320 case WM831X_FACTORY_OTP_4:
321 case WM831X_FACTORY_OTP_5:
322 case WM831X_CUSTOMER_OTP_ID:
323 case WM831X_DC1_OTP_CONTROL:
324 case WM831X_DC2_OTP_CONTROL:
325 case WM831X_DC3_OTP_CONTROL:
326 case WM831X_LDO1_2_OTP_CONTROL:
327 case WM831X_LDO3_4_OTP_CONTROL:
328 case WM831X_LDO5_6_OTP_CONTROL:
329 case WM831X_LDO7_8_OTP_CONTROL:
330 case WM831X_LDO9_10_OTP_CONTROL:
331 case WM831X_LDO11_EPE_CONTROL:
332 case WM831X_GPIO1_OTP_CONTROL:
333 case WM831X_GPIO2_OTP_CONTROL:
334 case WM831X_GPIO3_OTP_CONTROL:
335 case WM831X_GPIO4_OTP_CONTROL:
336 case WM831X_GPIO5_OTP_CONTROL:
337 case WM831X_GPIO6_OTP_CONTROL:
338 case WM831X_DBE_CHECK_DATA:
339 return true;
340 default:
341 return false;
342 }
343}
344
345static bool wm831x_reg_writeable(struct device *dev, unsigned int reg)
346{
347 struct wm831x *wm831x = dev_get_drvdata(dev);
348
349 if (wm831x_reg_locked(wm831x, reg))
350 return false;
351
352 switch (reg) {
353 case WM831X_SYSVDD_CONTROL:
354 case WM831X_THERMAL_MONITORING:
355 case WM831X_POWER_STATE:
356 case WM831X_WATCHDOG:
357 case WM831X_ON_PIN_CONTROL:
358 case WM831X_RESET_CONTROL:
359 case WM831X_CONTROL_INTERFACE:
360 case WM831X_SECURITY_KEY:
361 case WM831X_SOFTWARE_SCRATCH:
362 case WM831X_OTP_CONTROL:
363 case WM831X_GPIO_LEVEL:
364 case WM831X_INTERRUPT_STATUS_1:
365 case WM831X_INTERRUPT_STATUS_2:
366 case WM831X_INTERRUPT_STATUS_3:
367 case WM831X_INTERRUPT_STATUS_4:
368 case WM831X_INTERRUPT_STATUS_5:
369 case WM831X_IRQ_CONFIG:
370 case WM831X_SYSTEM_INTERRUPTS_MASK:
371 case WM831X_INTERRUPT_STATUS_1_MASK:
372 case WM831X_INTERRUPT_STATUS_2_MASK:
373 case WM831X_INTERRUPT_STATUS_3_MASK:
374 case WM831X_INTERRUPT_STATUS_4_MASK:
375 case WM831X_INTERRUPT_STATUS_5_MASK:
376 case WM831X_RTC_TIME_1:
377 case WM831X_RTC_TIME_2:
378 case WM831X_RTC_ALARM_1:
379 case WM831X_RTC_ALARM_2:
380 case WM831X_RTC_CONTROL:
381 case WM831X_RTC_TRIM:
382 case WM831X_TOUCH_CONTROL_1:
383 case WM831X_TOUCH_CONTROL_2:
384 case WM831X_AUXADC_CONTROL:
385 case WM831X_AUXADC_SOURCE:
386 case WM831X_COMPARATOR_CONTROL:
387 case WM831X_COMPARATOR_1:
388 case WM831X_COMPARATOR_2:
389 case WM831X_COMPARATOR_3:
390 case WM831X_COMPARATOR_4:
391 case WM831X_GPIO1_CONTROL:
392 case WM831X_GPIO2_CONTROL:
393 case WM831X_GPIO3_CONTROL:
394 case WM831X_GPIO4_CONTROL:
395 case WM831X_GPIO5_CONTROL:
396 case WM831X_GPIO6_CONTROL:
397 case WM831X_GPIO7_CONTROL:
398 case WM831X_GPIO8_CONTROL:
399 case WM831X_GPIO9_CONTROL:
400 case WM831X_GPIO10_CONTROL:
401 case WM831X_GPIO11_CONTROL:
402 case WM831X_GPIO12_CONTROL:
403 case WM831X_GPIO13_CONTROL:
404 case WM831X_GPIO14_CONTROL:
405 case WM831X_GPIO15_CONTROL:
406 case WM831X_GPIO16_CONTROL:
407 case WM831X_CHARGER_CONTROL_1:
408 case WM831X_CHARGER_CONTROL_2:
409 case WM831X_CHARGER_STATUS:
410 case WM831X_BACKUP_CHARGER_CONTROL:
411 case WM831X_STATUS_LED_1:
412 case WM831X_STATUS_LED_2:
413 case WM831X_CURRENT_SINK_1:
414 case WM831X_CURRENT_SINK_2:
415 case WM831X_DCDC_ENABLE:
416 case WM831X_LDO_ENABLE:
417 case WM831X_DC1_CONTROL_1:
418 case WM831X_DC1_CONTROL_2:
419 case WM831X_DC1_ON_CONFIG:
420 case WM831X_DC1_SLEEP_CONTROL:
421 case WM831X_DC1_DVS_CONTROL:
422 case WM831X_DC2_CONTROL_1:
423 case WM831X_DC2_CONTROL_2:
424 case WM831X_DC2_ON_CONFIG:
425 case WM831X_DC2_SLEEP_CONTROL:
426 case WM831X_DC2_DVS_CONTROL:
427 case WM831X_DC3_CONTROL_1:
428 case WM831X_DC3_CONTROL_2:
429 case WM831X_DC3_ON_CONFIG:
430 case WM831X_DC3_SLEEP_CONTROL:
431 case WM831X_DC4_CONTROL:
432 case WM831X_DC4_SLEEP_CONTROL:
433 case WM831X_EPE1_CONTROL:
434 case WM831X_EPE2_CONTROL:
435 case WM831X_LDO1_CONTROL:
436 case WM831X_LDO1_ON_CONTROL:
437 case WM831X_LDO1_SLEEP_CONTROL:
438 case WM831X_LDO2_CONTROL:
439 case WM831X_LDO2_ON_CONTROL:
440 case WM831X_LDO2_SLEEP_CONTROL:
441 case WM831X_LDO3_CONTROL:
442 case WM831X_LDO3_ON_CONTROL:
443 case WM831X_LDO3_SLEEP_CONTROL:
444 case WM831X_LDO4_CONTROL:
445 case WM831X_LDO4_ON_CONTROL:
446 case WM831X_LDO4_SLEEP_CONTROL:
447 case WM831X_LDO5_CONTROL:
448 case WM831X_LDO5_ON_CONTROL:
449 case WM831X_LDO5_SLEEP_CONTROL:
450 case WM831X_LDO6_CONTROL:
451 case WM831X_LDO6_ON_CONTROL:
452 case WM831X_LDO6_SLEEP_CONTROL:
453 case WM831X_LDO7_CONTROL:
454 case WM831X_LDO7_ON_CONTROL:
455 case WM831X_LDO7_SLEEP_CONTROL:
456 case WM831X_LDO8_CONTROL:
457 case WM831X_LDO8_ON_CONTROL:
458 case WM831X_LDO8_SLEEP_CONTROL:
459 case WM831X_LDO9_CONTROL:
460 case WM831X_LDO9_ON_CONTROL:
461 case WM831X_LDO9_SLEEP_CONTROL:
462 case WM831X_LDO10_CONTROL:
463 case WM831X_LDO10_ON_CONTROL:
464 case WM831X_LDO10_SLEEP_CONTROL:
465 case WM831X_LDO11_ON_CONTROL:
466 case WM831X_LDO11_SLEEP_CONTROL:
467 case WM831X_POWER_GOOD_SOURCE_1:
468 case WM831X_POWER_GOOD_SOURCE_2:
469 case WM831X_CLOCK_CONTROL_1:
470 case WM831X_CLOCK_CONTROL_2:
471 case WM831X_FLL_CONTROL_1:
472 case WM831X_FLL_CONTROL_2:
473 case WM831X_FLL_CONTROL_3:
474 case WM831X_FLL_CONTROL_4:
475 case WM831X_FLL_CONTROL_5:
476 return true;
477 default:
478 return false;
479 }
480}
481
482static bool wm831x_reg_volatile(struct device *dev, unsigned int reg)
483{
484 switch (reg) {
485 case WM831X_SYSTEM_STATUS:
486 case WM831X_ON_SOURCE:
487 case WM831X_OFF_SOURCE:
488 case WM831X_GPIO_LEVEL:
489 case WM831X_SYSTEM_INTERRUPTS:
490 case WM831X_INTERRUPT_STATUS_1:
491 case WM831X_INTERRUPT_STATUS_2:
492 case WM831X_INTERRUPT_STATUS_3:
493 case WM831X_INTERRUPT_STATUS_4:
494 case WM831X_INTERRUPT_STATUS_5:
495 case WM831X_RTC_TIME_1:
496 case WM831X_RTC_TIME_2:
497 case WM831X_TOUCH_DATA_X:
498 case WM831X_TOUCH_DATA_Y:
499 case WM831X_TOUCH_DATA_Z:
500 case WM831X_AUXADC_DATA:
501 case WM831X_CHARGER_STATUS:
502 case WM831X_DCDC_STATUS:
503 case WM831X_LDO_STATUS:
504 case WM831X_DCDC_UV_STATUS:
505 case WM831X_LDO_UV_STATUS:
506 return true;
507 default:
508 return false;
509 }
510}
511
512/**
513 * wm831x_reg_read: Read a single WM831x register.
514 *
515 * @wm831x: Device to read from.
516 * @reg: Register to read.
517 */
518int wm831x_reg_read(struct wm831x *wm831x, unsigned short reg)
519{
520 unsigned int val;
521 int ret;
522
523 ret = regmap_read(wm831x->regmap, reg, &val);
524
525 if (ret < 0)
526 return ret;
527 else
528 return val;
529}
530EXPORT_SYMBOL_GPL(wm831x_reg_read);
531
532/**
533 * wm831x_bulk_read: Read multiple WM831x registers
534 *
535 * @wm831x: Device to read from
536 * @reg: First register
537 * @count: Number of registers
538 * @buf: Buffer to fill.
539 */
540int wm831x_bulk_read(struct wm831x *wm831x, unsigned short reg,
541 int count, u16 *buf)
542{
543 return regmap_bulk_read(wm831x->regmap, reg, buf, count);
544}
545EXPORT_SYMBOL_GPL(wm831x_bulk_read);
546
547static int wm831x_write(struct wm831x *wm831x, unsigned short reg,
548 int bytes, void *src)
549{
550 u16 *buf = src;
551 int i, ret;
552
553 BUG_ON(bytes % 2);
554 BUG_ON(bytes <= 0);
555
556 for (i = 0; i < bytes / 2; i++) {
557 if (wm831x_reg_locked(wm831x, reg))
558 return -EPERM;
559
560 dev_vdbg(wm831x->dev, "Write %04x to R%d(0x%x)\n",
561 buf[i], reg + i, reg + i);
562 ret = regmap_write(wm831x->regmap, reg + i, buf[i]);
563 if (ret != 0)
564 return ret;
565 }
566
567 return 0;
568}
569
570/**
571 * wm831x_reg_write: Write a single WM831x register.
572 *
573 * @wm831x: Device to write to.
574 * @reg: Register to write to.
575 * @val: Value to write.
576 */
577int wm831x_reg_write(struct wm831x *wm831x, unsigned short reg,
578 unsigned short val)
579{
580 int ret;
581
582 mutex_lock(&wm831x->io_lock);
583
584 ret = wm831x_write(wm831x, reg, 2, &val);
585
586 mutex_unlock(&wm831x->io_lock);
587
588 return ret;
589}
590EXPORT_SYMBOL_GPL(wm831x_reg_write);
591
592/**
593 * wm831x_set_bits: Set the value of a bitfield in a WM831x register
594 *
595 * @wm831x: Device to write to.
596 * @reg: Register to write to.
597 * @mask: Mask of bits to set.
598 * @val: Value to set (unshifted)
599 */
600int wm831x_set_bits(struct wm831x *wm831x, unsigned short reg,
601 unsigned short mask, unsigned short val)
602{
603 int ret;
604
605 mutex_lock(&wm831x->io_lock);
606
607 if (!wm831x_reg_locked(wm831x, reg))
608 ret = regmap_update_bits(wm831x->regmap, reg, mask, val);
609 else
610 ret = -EPERM;
611
612 mutex_unlock(&wm831x->io_lock);
613
614 return ret;
615}
616EXPORT_SYMBOL_GPL(wm831x_set_bits);
617
618static const struct resource wm831x_dcdc1_resources[] = {
619 {
620 .start = WM831X_DC1_CONTROL_1,
621 .end = WM831X_DC1_DVS_CONTROL,
622 .flags = IORESOURCE_REG,
623 },
624 DEFINE_RES_IRQ_NAMED(WM831X_IRQ_UV_DC1, "UV"),
625 DEFINE_RES_IRQ_NAMED(WM831X_IRQ_HC_DC1, "HC"),
626};
627
628
629static const struct resource wm831x_dcdc2_resources[] = {
630 {
631 .start = WM831X_DC2_CONTROL_1,
632 .end = WM831X_DC2_DVS_CONTROL,
633 .flags = IORESOURCE_REG,
634 },
635 DEFINE_RES_IRQ_NAMED(WM831X_IRQ_UV_DC2, "UV"),
636 DEFINE_RES_IRQ_NAMED(WM831X_IRQ_HC_DC2, "HC"),
637};
638
639static const struct resource wm831x_dcdc3_resources[] = {
640 {
641 .start = WM831X_DC3_CONTROL_1,
642 .end = WM831X_DC3_SLEEP_CONTROL,
643 .flags = IORESOURCE_REG,
644 },
645 DEFINE_RES_IRQ_NAMED(WM831X_IRQ_UV_DC3, "UV"),
646};
647
648static const struct resource wm831x_dcdc4_resources[] = {
649 {
650 .start = WM831X_DC4_CONTROL,
651 .end = WM831X_DC4_SLEEP_CONTROL,
652 .flags = IORESOURCE_REG,
653 },
654 DEFINE_RES_IRQ_NAMED(WM831X_IRQ_UV_DC4, "UV"),
655};
656
657static const struct resource wm8320_dcdc4_buck_resources[] = {
658 {
659 .start = WM831X_DC4_CONTROL,
660 .end = WM832X_DC4_SLEEP_CONTROL,
661 .flags = IORESOURCE_REG,
662 },
663 DEFINE_RES_IRQ_NAMED(WM831X_IRQ_UV_DC4, "UV"),
664};
665
666static const struct resource wm831x_gpio_resources[] = {
667 {
668 .start = WM831X_IRQ_GPIO_1,
669 .end = WM831X_IRQ_GPIO_16,
670 .flags = IORESOURCE_IRQ,
671 },
672};
673
674static const struct resource wm831x_isink1_resources[] = {
675 {
676 .start = WM831X_CURRENT_SINK_1,
677 .end = WM831X_CURRENT_SINK_1,
678 .flags = IORESOURCE_REG,
679 },
680 DEFINE_RES_IRQ(WM831X_IRQ_CS1),
681};
682
683static const struct resource wm831x_isink2_resources[] = {
684 {
685 .start = WM831X_CURRENT_SINK_2,
686 .end = WM831X_CURRENT_SINK_2,
687 .flags = IORESOURCE_REG,
688 },
689 DEFINE_RES_IRQ(WM831X_IRQ_CS2),
690};
691
692static const struct resource wm831x_ldo1_resources[] = {
693 {
694 .start = WM831X_LDO1_CONTROL,
695 .end = WM831X_LDO1_SLEEP_CONTROL,
696 .flags = IORESOURCE_REG,
697 },
698 DEFINE_RES_IRQ_NAMED(WM831X_IRQ_UV_LDO1, "UV"),
699};
700
701static const struct resource wm831x_ldo2_resources[] = {
702 {
703 .start = WM831X_LDO2_CONTROL,
704 .end = WM831X_LDO2_SLEEP_CONTROL,
705 .flags = IORESOURCE_REG,
706 },
707 DEFINE_RES_IRQ_NAMED(WM831X_IRQ_UV_LDO2, "UV"),
708};
709
710static const struct resource wm831x_ldo3_resources[] = {
711 {
712 .start = WM831X_LDO3_CONTROL,
713 .end = WM831X_LDO3_SLEEP_CONTROL,
714 .flags = IORESOURCE_REG,
715 },
716 DEFINE_RES_IRQ_NAMED(WM831X_IRQ_UV_LDO3, "UV"),
717};
718
719static const struct resource wm831x_ldo4_resources[] = {
720 {
721 .start = WM831X_LDO4_CONTROL,
722 .end = WM831X_LDO4_SLEEP_CONTROL,
723 .flags = IORESOURCE_REG,
724 },
725 DEFINE_RES_IRQ_NAMED(WM831X_IRQ_UV_LDO4, "UV"),
726};
727
728static const struct resource wm831x_ldo5_resources[] = {
729 {
730 .start = WM831X_LDO5_CONTROL,
731 .end = WM831X_LDO5_SLEEP_CONTROL,
732 .flags = IORESOURCE_REG,
733 },
734 DEFINE_RES_IRQ_NAMED(WM831X_IRQ_UV_LDO5, "UV"),
735};
736
737static const struct resource wm831x_ldo6_resources[] = {
738 {
739 .start = WM831X_LDO6_CONTROL,
740 .end = WM831X_LDO6_SLEEP_CONTROL,
741 .flags = IORESOURCE_REG,
742 },
743 DEFINE_RES_IRQ_NAMED(WM831X_IRQ_UV_LDO6, "UV"),
744};
745
746static const struct resource wm831x_ldo7_resources[] = {
747 {
748 .start = WM831X_LDO7_CONTROL,
749 .end = WM831X_LDO7_SLEEP_CONTROL,
750 .flags = IORESOURCE_REG,
751 },
752 DEFINE_RES_IRQ_NAMED(WM831X_IRQ_UV_LDO7, "UV"),
753};
754
755static const struct resource wm831x_ldo8_resources[] = {
756 {
757 .start = WM831X_LDO8_CONTROL,
758 .end = WM831X_LDO8_SLEEP_CONTROL,
759 .flags = IORESOURCE_REG,
760 },
761 DEFINE_RES_IRQ_NAMED(WM831X_IRQ_UV_LDO8, "UV"),
762};
763
764static const struct resource wm831x_ldo9_resources[] = {
765 {
766 .start = WM831X_LDO9_CONTROL,
767 .end = WM831X_LDO9_SLEEP_CONTROL,
768 .flags = IORESOURCE_REG,
769 },
770 DEFINE_RES_IRQ_NAMED(WM831X_IRQ_UV_LDO9, "UV"),
771};
772
773static const struct resource wm831x_ldo10_resources[] = {
774 {
775 .start = WM831X_LDO10_CONTROL,
776 .end = WM831X_LDO10_SLEEP_CONTROL,
777 .flags = IORESOURCE_REG,
778 },
779 DEFINE_RES_IRQ_NAMED(WM831X_IRQ_UV_LDO10, "UV"),
780};
781
782static const struct resource wm831x_ldo11_resources[] = {
783 {
784 .start = WM831X_LDO11_ON_CONTROL,
785 .end = WM831X_LDO11_SLEEP_CONTROL,
786 .flags = IORESOURCE_REG,
787 },
788};
789
790static const struct resource wm831x_on_resources[] = {
791 DEFINE_RES_IRQ(WM831X_IRQ_ON),
792};
793
794
795static const struct resource wm831x_power_resources[] = {
796 DEFINE_RES_IRQ_NAMED(WM831X_IRQ_PPM_SYSLO, "SYSLO"),
797 DEFINE_RES_IRQ_NAMED(WM831X_IRQ_PPM_PWR_SRC, "PWR SRC"),
798 DEFINE_RES_IRQ_NAMED(WM831X_IRQ_PPM_USB_CURR, "USB CURR"),
799 DEFINE_RES_IRQ_NAMED(WM831X_IRQ_CHG_BATT_HOT, "BATT HOT"),
800 DEFINE_RES_IRQ_NAMED(WM831X_IRQ_CHG_BATT_COLD, "BATT COLD"),
801 DEFINE_RES_IRQ_NAMED(WM831X_IRQ_CHG_BATT_FAIL, "BATT FAIL"),
802 DEFINE_RES_IRQ_NAMED(WM831X_IRQ_CHG_OV, "OV"),
803 DEFINE_RES_IRQ_NAMED(WM831X_IRQ_CHG_END, "END"),
804 DEFINE_RES_IRQ_NAMED(WM831X_IRQ_CHG_TO, "TO"),
805 DEFINE_RES_IRQ_NAMED(WM831X_IRQ_CHG_MODE, "MODE"),
806 DEFINE_RES_IRQ_NAMED(WM831X_IRQ_CHG_START, "START"),
807};
808
809static const struct resource wm831x_rtc_resources[] = {
810 DEFINE_RES_IRQ_NAMED(WM831X_IRQ_RTC_PER, "PER"),
811 DEFINE_RES_IRQ_NAMED(WM831X_IRQ_RTC_ALM, "ALM"),
812};
813
814static const struct resource wm831x_status1_resources[] = {
815 {
816 .start = WM831X_STATUS_LED_1,
817 .end = WM831X_STATUS_LED_1,
818 .flags = IORESOURCE_REG,
819 },
820};
821
822static const struct resource wm831x_status2_resources[] = {
823 {
824 .start = WM831X_STATUS_LED_2,
825 .end = WM831X_STATUS_LED_2,
826 .flags = IORESOURCE_REG,
827 },
828};
829
830static const struct resource wm831x_touch_resources[] = {
831 DEFINE_RES_IRQ_NAMED(WM831X_IRQ_TCHPD, "TCHPD"),
832 DEFINE_RES_IRQ_NAMED(WM831X_IRQ_TCHDATA, "TCHDATA"),
833};
834
835static const struct resource wm831x_wdt_resources[] = {
836 DEFINE_RES_IRQ(WM831X_IRQ_WDOG_TO),
837};
838
839static const struct mfd_cell wm8310_devs[] = {
840 {
841 .name = "wm831x-backup",
842 },
843 {
844 .name = "wm831x-buckv",
845 .id = 1,
846 .num_resources = ARRAY_SIZE(wm831x_dcdc1_resources),
847 .resources = wm831x_dcdc1_resources,
848 },
849 {
850 .name = "wm831x-buckv",
851 .id = 2,
852 .num_resources = ARRAY_SIZE(wm831x_dcdc2_resources),
853 .resources = wm831x_dcdc2_resources,
854 },
855 {
856 .name = "wm831x-buckp",
857 .id = 3,
858 .num_resources = ARRAY_SIZE(wm831x_dcdc3_resources),
859 .resources = wm831x_dcdc3_resources,
860 },
861 {
862 .name = "wm831x-boostp",
863 .id = 4,
864 .num_resources = ARRAY_SIZE(wm831x_dcdc4_resources),
865 .resources = wm831x_dcdc4_resources,
866 },
867 {
868 .name = "wm831x-clk",
869 },
870 {
871 .name = "wm831x-epe",
872 .id = 1,
873 },
874 {
875 .name = "wm831x-epe",
876 .id = 2,
877 },
878 {
879 .name = "wm831x-gpio",
880 .num_resources = ARRAY_SIZE(wm831x_gpio_resources),
881 .resources = wm831x_gpio_resources,
882 },
883 {
884 .name = "wm831x-hwmon",
885 },
886 {
887 .name = "wm831x-isink",
888 .id = 1,
889 .num_resources = ARRAY_SIZE(wm831x_isink1_resources),
890 .resources = wm831x_isink1_resources,
891 },
892 {
893 .name = "wm831x-isink",
894 .id = 2,
895 .num_resources = ARRAY_SIZE(wm831x_isink2_resources),
896 .resources = wm831x_isink2_resources,
897 },
898 {
899 .name = "wm831x-ldo",
900 .id = 1,
901 .num_resources = ARRAY_SIZE(wm831x_ldo1_resources),
902 .resources = wm831x_ldo1_resources,
903 },
904 {
905 .name = "wm831x-ldo",
906 .id = 2,
907 .num_resources = ARRAY_SIZE(wm831x_ldo2_resources),
908 .resources = wm831x_ldo2_resources,
909 },
910 {
911 .name = "wm831x-ldo",
912 .id = 3,
913 .num_resources = ARRAY_SIZE(wm831x_ldo3_resources),
914 .resources = wm831x_ldo3_resources,
915 },
916 {
917 .name = "wm831x-ldo",
918 .id = 4,
919 .num_resources = ARRAY_SIZE(wm831x_ldo4_resources),
920 .resources = wm831x_ldo4_resources,
921 },
922 {
923 .name = "wm831x-ldo",
924 .id = 5,
925 .num_resources = ARRAY_SIZE(wm831x_ldo5_resources),
926 .resources = wm831x_ldo5_resources,
927 },
928 {
929 .name = "wm831x-ldo",
930 .id = 6,
931 .num_resources = ARRAY_SIZE(wm831x_ldo6_resources),
932 .resources = wm831x_ldo6_resources,
933 },
934 {
935 .name = "wm831x-aldo",
936 .id = 7,
937 .num_resources = ARRAY_SIZE(wm831x_ldo7_resources),
938 .resources = wm831x_ldo7_resources,
939 },
940 {
941 .name = "wm831x-aldo",
942 .id = 8,
943 .num_resources = ARRAY_SIZE(wm831x_ldo8_resources),
944 .resources = wm831x_ldo8_resources,
945 },
946 {
947 .name = "wm831x-aldo",
948 .id = 9,
949 .num_resources = ARRAY_SIZE(wm831x_ldo9_resources),
950 .resources = wm831x_ldo9_resources,
951 },
952 {
953 .name = "wm831x-aldo",
954 .id = 10,
955 .num_resources = ARRAY_SIZE(wm831x_ldo10_resources),
956 .resources = wm831x_ldo10_resources,
957 },
958 {
959 .name = "wm831x-alive-ldo",
960 .id = 11,
961 .num_resources = ARRAY_SIZE(wm831x_ldo11_resources),
962 .resources = wm831x_ldo11_resources,
963 },
964 {
965 .name = "wm831x-on",
966 .num_resources = ARRAY_SIZE(wm831x_on_resources),
967 .resources = wm831x_on_resources,
968 },
969 {
970 .name = "wm831x-power",
971 .num_resources = ARRAY_SIZE(wm831x_power_resources),
972 .resources = wm831x_power_resources,
973 },
974 {
975 .name = "wm831x-status",
976 .id = 1,
977 .num_resources = ARRAY_SIZE(wm831x_status1_resources),
978 .resources = wm831x_status1_resources,
979 },
980 {
981 .name = "wm831x-status",
982 .id = 2,
983 .num_resources = ARRAY_SIZE(wm831x_status2_resources),
984 .resources = wm831x_status2_resources,
985 },
986 {
987 .name = "wm831x-watchdog",
988 .num_resources = ARRAY_SIZE(wm831x_wdt_resources),
989 .resources = wm831x_wdt_resources,
990 },
991};
992
993static const struct mfd_cell wm8311_devs[] = {
994 {
995 .name = "wm831x-backup",
996 },
997 {
998 .name = "wm831x-buckv",
999 .id = 1,
1000 .num_resources = ARRAY_SIZE(wm831x_dcdc1_resources),
1001 .resources = wm831x_dcdc1_resources,
1002 },
1003 {
1004 .name = "wm831x-buckv",
1005 .id = 2,
1006 .num_resources = ARRAY_SIZE(wm831x_dcdc2_resources),
1007 .resources = wm831x_dcdc2_resources,
1008 },
1009 {
1010 .name = "wm831x-buckp",
1011 .id = 3,
1012 .num_resources = ARRAY_SIZE(wm831x_dcdc3_resources),
1013 .resources = wm831x_dcdc3_resources,
1014 },
1015 {
1016 .name = "wm831x-boostp",
1017 .id = 4,
1018 .num_resources = ARRAY_SIZE(wm831x_dcdc4_resources),
1019 .resources = wm831x_dcdc4_resources,
1020 },
1021 {
1022 .name = "wm831x-clk",
1023 },
1024 {
1025 .name = "wm831x-epe",
1026 .id = 1,
1027 },
1028 {
1029 .name = "wm831x-epe",
1030 .id = 2,
1031 },
1032 {
1033 .name = "wm831x-gpio",
1034 .num_resources = ARRAY_SIZE(wm831x_gpio_resources),
1035 .resources = wm831x_gpio_resources,
1036 },
1037 {
1038 .name = "wm831x-hwmon",
1039 },
1040 {
1041 .name = "wm831x-isink",
1042 .id = 1,
1043 .num_resources = ARRAY_SIZE(wm831x_isink1_resources),
1044 .resources = wm831x_isink1_resources,
1045 },
1046 {
1047 .name = "wm831x-isink",
1048 .id = 2,
1049 .num_resources = ARRAY_SIZE(wm831x_isink2_resources),
1050 .resources = wm831x_isink2_resources,
1051 },
1052 {
1053 .name = "wm831x-ldo",
1054 .id = 1,
1055 .num_resources = ARRAY_SIZE(wm831x_ldo1_resources),
1056 .resources = wm831x_ldo1_resources,
1057 },
1058 {
1059 .name = "wm831x-ldo",
1060 .id = 2,
1061 .num_resources = ARRAY_SIZE(wm831x_ldo2_resources),
1062 .resources = wm831x_ldo2_resources,
1063 },
1064 {
1065 .name = "wm831x-ldo",
1066 .id = 3,
1067 .num_resources = ARRAY_SIZE(wm831x_ldo3_resources),
1068 .resources = wm831x_ldo3_resources,
1069 },
1070 {
1071 .name = "wm831x-ldo",
1072 .id = 4,
1073 .num_resources = ARRAY_SIZE(wm831x_ldo4_resources),
1074 .resources = wm831x_ldo4_resources,
1075 },
1076 {
1077 .name = "wm831x-ldo",
1078 .id = 5,
1079 .num_resources = ARRAY_SIZE(wm831x_ldo5_resources),
1080 .resources = wm831x_ldo5_resources,
1081 },
1082 {
1083 .name = "wm831x-aldo",
1084 .id = 7,
1085 .num_resources = ARRAY_SIZE(wm831x_ldo7_resources),
1086 .resources = wm831x_ldo7_resources,
1087 },
1088 {
1089 .name = "wm831x-alive-ldo",
1090 .id = 11,
1091 .num_resources = ARRAY_SIZE(wm831x_ldo11_resources),
1092 .resources = wm831x_ldo11_resources,
1093 },
1094 {
1095 .name = "wm831x-on",
1096 .num_resources = ARRAY_SIZE(wm831x_on_resources),
1097 .resources = wm831x_on_resources,
1098 },
1099 {
1100 .name = "wm831x-power",
1101 .num_resources = ARRAY_SIZE(wm831x_power_resources),
1102 .resources = wm831x_power_resources,
1103 },
1104 {
1105 .name = "wm831x-status",
1106 .id = 1,
1107 .num_resources = ARRAY_SIZE(wm831x_status1_resources),
1108 .resources = wm831x_status1_resources,
1109 },
1110 {
1111 .name = "wm831x-status",
1112 .id = 2,
1113 .num_resources = ARRAY_SIZE(wm831x_status2_resources),
1114 .resources = wm831x_status2_resources,
1115 },
1116 {
1117 .name = "wm831x-watchdog",
1118 .num_resources = ARRAY_SIZE(wm831x_wdt_resources),
1119 .resources = wm831x_wdt_resources,
1120 },
1121};
1122
1123static const struct mfd_cell wm8312_devs[] = {
1124 {
1125 .name = "wm831x-backup",
1126 },
1127 {
1128 .name = "wm831x-buckv",
1129 .id = 1,
1130 .num_resources = ARRAY_SIZE(wm831x_dcdc1_resources),
1131 .resources = wm831x_dcdc1_resources,
1132 },
1133 {
1134 .name = "wm831x-buckv",
1135 .id = 2,
1136 .num_resources = ARRAY_SIZE(wm831x_dcdc2_resources),
1137 .resources = wm831x_dcdc2_resources,
1138 },
1139 {
1140 .name = "wm831x-buckp",
1141 .id = 3,
1142 .num_resources = ARRAY_SIZE(wm831x_dcdc3_resources),
1143 .resources = wm831x_dcdc3_resources,
1144 },
1145 {
1146 .name = "wm831x-boostp",
1147 .id = 4,
1148 .num_resources = ARRAY_SIZE(wm831x_dcdc4_resources),
1149 .resources = wm831x_dcdc4_resources,
1150 },
1151 {
1152 .name = "wm831x-clk",
1153 },
1154 {
1155 .name = "wm831x-epe",
1156 .id = 1,
1157 },
1158 {
1159 .name = "wm831x-epe",
1160 .id = 2,
1161 },
1162 {
1163 .name = "wm831x-gpio",
1164 .num_resources = ARRAY_SIZE(wm831x_gpio_resources),
1165 .resources = wm831x_gpio_resources,
1166 },
1167 {
1168 .name = "wm831x-hwmon",
1169 },
1170 {
1171 .name = "wm831x-isink",
1172 .id = 1,
1173 .num_resources = ARRAY_SIZE(wm831x_isink1_resources),
1174 .resources = wm831x_isink1_resources,
1175 },
1176 {
1177 .name = "wm831x-isink",
1178 .id = 2,
1179 .num_resources = ARRAY_SIZE(wm831x_isink2_resources),
1180 .resources = wm831x_isink2_resources,
1181 },
1182 {
1183 .name = "wm831x-ldo",
1184 .id = 1,
1185 .num_resources = ARRAY_SIZE(wm831x_ldo1_resources),
1186 .resources = wm831x_ldo1_resources,
1187 },
1188 {
1189 .name = "wm831x-ldo",
1190 .id = 2,
1191 .num_resources = ARRAY_SIZE(wm831x_ldo2_resources),
1192 .resources = wm831x_ldo2_resources,
1193 },
1194 {
1195 .name = "wm831x-ldo",
1196 .id = 3,
1197 .num_resources = ARRAY_SIZE(wm831x_ldo3_resources),
1198 .resources = wm831x_ldo3_resources,
1199 },
1200 {
1201 .name = "wm831x-ldo",
1202 .id = 4,
1203 .num_resources = ARRAY_SIZE(wm831x_ldo4_resources),
1204 .resources = wm831x_ldo4_resources,
1205 },
1206 {
1207 .name = "wm831x-ldo",
1208 .id = 5,
1209 .num_resources = ARRAY_SIZE(wm831x_ldo5_resources),
1210 .resources = wm831x_ldo5_resources,
1211 },
1212 {
1213 .name = "wm831x-ldo",
1214 .id = 6,
1215 .num_resources = ARRAY_SIZE(wm831x_ldo6_resources),
1216 .resources = wm831x_ldo6_resources,
1217 },
1218 {
1219 .name = "wm831x-aldo",
1220 .id = 7,
1221 .num_resources = ARRAY_SIZE(wm831x_ldo7_resources),
1222 .resources = wm831x_ldo7_resources,
1223 },
1224 {
1225 .name = "wm831x-aldo",
1226 .id = 8,
1227 .num_resources = ARRAY_SIZE(wm831x_ldo8_resources),
1228 .resources = wm831x_ldo8_resources,
1229 },
1230 {
1231 .name = "wm831x-aldo",
1232 .id = 9,
1233 .num_resources = ARRAY_SIZE(wm831x_ldo9_resources),
1234 .resources = wm831x_ldo9_resources,
1235 },
1236 {
1237 .name = "wm831x-aldo",
1238 .id = 10,
1239 .num_resources = ARRAY_SIZE(wm831x_ldo10_resources),
1240 .resources = wm831x_ldo10_resources,
1241 },
1242 {
1243 .name = "wm831x-alive-ldo",
1244 .id = 11,
1245 .num_resources = ARRAY_SIZE(wm831x_ldo11_resources),
1246 .resources = wm831x_ldo11_resources,
1247 },
1248 {
1249 .name = "wm831x-on",
1250 .num_resources = ARRAY_SIZE(wm831x_on_resources),
1251 .resources = wm831x_on_resources,
1252 },
1253 {
1254 .name = "wm831x-power",
1255 .num_resources = ARRAY_SIZE(wm831x_power_resources),
1256 .resources = wm831x_power_resources,
1257 },
1258 {
1259 .name = "wm831x-status",
1260 .id = 1,
1261 .num_resources = ARRAY_SIZE(wm831x_status1_resources),
1262 .resources = wm831x_status1_resources,
1263 },
1264 {
1265 .name = "wm831x-status",
1266 .id = 2,
1267 .num_resources = ARRAY_SIZE(wm831x_status2_resources),
1268 .resources = wm831x_status2_resources,
1269 },
1270 {
1271 .name = "wm831x-watchdog",
1272 .num_resources = ARRAY_SIZE(wm831x_wdt_resources),
1273 .resources = wm831x_wdt_resources,
1274 },
1275};
1276
1277static const struct mfd_cell wm8320_devs[] = {
1278 {
1279 .name = "wm831x-backup",
1280 },
1281 {
1282 .name = "wm831x-buckv",
1283 .id = 1,
1284 .num_resources = ARRAY_SIZE(wm831x_dcdc1_resources),
1285 .resources = wm831x_dcdc1_resources,
1286 },
1287 {
1288 .name = "wm831x-buckv",
1289 .id = 2,
1290 .num_resources = ARRAY_SIZE(wm831x_dcdc2_resources),
1291 .resources = wm831x_dcdc2_resources,
1292 },
1293 {
1294 .name = "wm831x-buckp",
1295 .id = 3,
1296 .num_resources = ARRAY_SIZE(wm831x_dcdc3_resources),
1297 .resources = wm831x_dcdc3_resources,
1298 },
1299 {
1300 .name = "wm831x-buckp",
1301 .id = 4,
1302 .num_resources = ARRAY_SIZE(wm8320_dcdc4_buck_resources),
1303 .resources = wm8320_dcdc4_buck_resources,
1304 },
1305 {
1306 .name = "wm831x-clk",
1307 },
1308 {
1309 .name = "wm831x-gpio",
1310 .num_resources = ARRAY_SIZE(wm831x_gpio_resources),
1311 .resources = wm831x_gpio_resources,
1312 },
1313 {
1314 .name = "wm831x-hwmon",
1315 },
1316 {
1317 .name = "wm831x-ldo",
1318 .id = 1,
1319 .num_resources = ARRAY_SIZE(wm831x_ldo1_resources),
1320 .resources = wm831x_ldo1_resources,
1321 },
1322 {
1323 .name = "wm831x-ldo",
1324 .id = 2,
1325 .num_resources = ARRAY_SIZE(wm831x_ldo2_resources),
1326 .resources = wm831x_ldo2_resources,
1327 },
1328 {
1329 .name = "wm831x-ldo",
1330 .id = 3,
1331 .num_resources = ARRAY_SIZE(wm831x_ldo3_resources),
1332 .resources = wm831x_ldo3_resources,
1333 },
1334 {
1335 .name = "wm831x-ldo",
1336 .id = 4,
1337 .num_resources = ARRAY_SIZE(wm831x_ldo4_resources),
1338 .resources = wm831x_ldo4_resources,
1339 },
1340 {
1341 .name = "wm831x-ldo",
1342 .id = 5,
1343 .num_resources = ARRAY_SIZE(wm831x_ldo5_resources),
1344 .resources = wm831x_ldo5_resources,
1345 },
1346 {
1347 .name = "wm831x-ldo",
1348 .id = 6,
1349 .num_resources = ARRAY_SIZE(wm831x_ldo6_resources),
1350 .resources = wm831x_ldo6_resources,
1351 },
1352 {
1353 .name = "wm831x-aldo",
1354 .id = 7,
1355 .num_resources = ARRAY_SIZE(wm831x_ldo7_resources),
1356 .resources = wm831x_ldo7_resources,
1357 },
1358 {
1359 .name = "wm831x-aldo",
1360 .id = 8,
1361 .num_resources = ARRAY_SIZE(wm831x_ldo8_resources),
1362 .resources = wm831x_ldo8_resources,
1363 },
1364 {
1365 .name = "wm831x-aldo",
1366 .id = 9,
1367 .num_resources = ARRAY_SIZE(wm831x_ldo9_resources),
1368 .resources = wm831x_ldo9_resources,
1369 },
1370 {
1371 .name = "wm831x-aldo",
1372 .id = 10,
1373 .num_resources = ARRAY_SIZE(wm831x_ldo10_resources),
1374 .resources = wm831x_ldo10_resources,
1375 },
1376 {
1377 .name = "wm831x-alive-ldo",
1378 .id = 11,
1379 .num_resources = ARRAY_SIZE(wm831x_ldo11_resources),
1380 .resources = wm831x_ldo11_resources,
1381 },
1382 {
1383 .name = "wm831x-on",
1384 .num_resources = ARRAY_SIZE(wm831x_on_resources),
1385 .resources = wm831x_on_resources,
1386 },
1387 {
1388 .name = "wm831x-status",
1389 .id = 1,
1390 .num_resources = ARRAY_SIZE(wm831x_status1_resources),
1391 .resources = wm831x_status1_resources,
1392 },
1393 {
1394 .name = "wm831x-status",
1395 .id = 2,
1396 .num_resources = ARRAY_SIZE(wm831x_status2_resources),
1397 .resources = wm831x_status2_resources,
1398 },
1399 {
1400 .name = "wm831x-watchdog",
1401 .num_resources = ARRAY_SIZE(wm831x_wdt_resources),
1402 .resources = wm831x_wdt_resources,
1403 },
1404};
1405
1406static const struct mfd_cell touch_devs[] = {
1407 {
1408 .name = "wm831x-touch",
1409 .num_resources = ARRAY_SIZE(wm831x_touch_resources),
1410 .resources = wm831x_touch_resources,
1411 },
1412};
1413
1414static const struct mfd_cell rtc_devs[] = {
1415 {
1416 .name = "wm831x-rtc",
1417 .num_resources = ARRAY_SIZE(wm831x_rtc_resources),
1418 .resources = wm831x_rtc_resources,
1419 },
1420};
1421
1422static const struct mfd_cell backlight_devs[] = {
1423 {
1424 .name = "wm831x-backlight",
1425 },
1426};
1427
1428struct regmap_config wm831x_regmap_config = {
1429 .reg_bits = 16,
1430 .val_bits = 16,
1431
1432 .cache_type = REGCACHE_MAPLE,
1433
1434 .max_register = WM831X_DBE_CHECK_DATA,
1435 .readable_reg = wm831x_reg_readable,
1436 .writeable_reg = wm831x_reg_writeable,
1437 .volatile_reg = wm831x_reg_volatile,
1438};
1439EXPORT_SYMBOL_GPL(wm831x_regmap_config);
1440
1441const struct of_device_id wm831x_of_match[] = {
1442 { .compatible = "wlf,wm8310", .data = (void *)WM8310 },
1443 { .compatible = "wlf,wm8311", .data = (void *)WM8311 },
1444 { .compatible = "wlf,wm8312", .data = (void *)WM8312 },
1445 { .compatible = "wlf,wm8320", .data = (void *)WM8320 },
1446 { .compatible = "wlf,wm8321", .data = (void *)WM8321 },
1447 { .compatible = "wlf,wm8325", .data = (void *)WM8325 },
1448 { .compatible = "wlf,wm8326", .data = (void *)WM8326 },
1449 { },
1450};
1451EXPORT_SYMBOL_GPL(wm831x_of_match);
1452
1453/*
1454 * Instantiate the generic non-control parts of the device.
1455 */
1456int wm831x_device_init(struct wm831x *wm831x, int irq)
1457{
1458 struct wm831x_pdata *pdata = &wm831x->pdata;
1459 int rev, wm831x_num;
1460 enum wm831x_parent parent;
1461 int ret, i;
1462
1463 mutex_init(&wm831x->io_lock);
1464 mutex_init(&wm831x->key_lock);
1465 dev_set_drvdata(wm831x->dev, wm831x);
1466
1467 wm831x->soft_shutdown = pdata->soft_shutdown;
1468
1469 ret = wm831x_reg_read(wm831x, WM831X_PARENT_ID);
1470 if (ret < 0) {
1471 dev_err(wm831x->dev, "Failed to read parent ID: %d\n", ret);
1472 goto err;
1473 }
1474 switch (ret) {
1475 case 0x6204:
1476 case 0x6246:
1477 break;
1478 default:
1479 dev_err(wm831x->dev, "Device is not a WM831x: ID %x\n", ret);
1480 ret = -EINVAL;
1481 goto err;
1482 }
1483
1484 ret = wm831x_reg_read(wm831x, WM831X_REVISION);
1485 if (ret < 0) {
1486 dev_err(wm831x->dev, "Failed to read revision: %d\n", ret);
1487 goto err;
1488 }
1489 rev = (ret & WM831X_PARENT_REV_MASK) >> WM831X_PARENT_REV_SHIFT;
1490
1491 ret = wm831x_reg_read(wm831x, WM831X_RESET_ID);
1492 if (ret < 0) {
1493 dev_err(wm831x->dev, "Failed to read device ID: %d\n", ret);
1494 goto err;
1495 }
1496
1497 /* Some engineering samples do not have the ID set, rely on
1498 * the device being registered correctly.
1499 */
1500 if (ret == 0) {
1501 dev_info(wm831x->dev, "Device is an engineering sample\n");
1502 ret = wm831x->type;
1503 }
1504
1505 switch (ret) {
1506 case WM8310:
1507 parent = WM8310;
1508 wm831x->num_gpio = 16;
1509 wm831x->charger_irq_wake = 1;
1510 if (rev > 0) {
1511 wm831x->has_gpio_ena = 1;
1512 wm831x->has_cs_sts = 1;
1513 }
1514
1515 dev_info(wm831x->dev, "WM8310 revision %c\n", 'A' + rev);
1516 break;
1517
1518 case WM8311:
1519 parent = WM8311;
1520 wm831x->num_gpio = 16;
1521 wm831x->charger_irq_wake = 1;
1522 if (rev > 0) {
1523 wm831x->has_gpio_ena = 1;
1524 wm831x->has_cs_sts = 1;
1525 }
1526
1527 dev_info(wm831x->dev, "WM8311 revision %c\n", 'A' + rev);
1528 break;
1529
1530 case WM8312:
1531 parent = WM8312;
1532 wm831x->num_gpio = 16;
1533 wm831x->charger_irq_wake = 1;
1534 if (rev > 0) {
1535 wm831x->has_gpio_ena = 1;
1536 wm831x->has_cs_sts = 1;
1537 }
1538
1539 dev_info(wm831x->dev, "WM8312 revision %c\n", 'A' + rev);
1540 break;
1541
1542 case WM8320:
1543 parent = WM8320;
1544 wm831x->num_gpio = 12;
1545 dev_info(wm831x->dev, "WM8320 revision %c\n", 'A' + rev);
1546 break;
1547
1548 case WM8321:
1549 parent = WM8321;
1550 wm831x->num_gpio = 12;
1551 dev_info(wm831x->dev, "WM8321 revision %c\n", 'A' + rev);
1552 break;
1553
1554 case WM8325:
1555 parent = WM8325;
1556 wm831x->num_gpio = 12;
1557 dev_info(wm831x->dev, "WM8325 revision %c\n", 'A' + rev);
1558 break;
1559
1560 case WM8326:
1561 parent = WM8326;
1562 wm831x->num_gpio = 12;
1563 dev_info(wm831x->dev, "WM8326 revision %c\n", 'A' + rev);
1564 break;
1565
1566 default:
1567 dev_err(wm831x->dev, "Unknown WM831x device %04x\n", ret);
1568 ret = -EINVAL;
1569 goto err;
1570 }
1571
1572 /* This will need revisiting in future but is OK for all
1573 * current parts.
1574 */
1575 if (parent != wm831x->type)
1576 dev_warn(wm831x->dev, "Device was registered as a WM%x\n",
1577 wm831x->type);
1578
1579 /* Bootstrap the user key */
1580 ret = wm831x_reg_read(wm831x, WM831X_SECURITY_KEY);
1581 if (ret < 0) {
1582 dev_err(wm831x->dev, "Failed to read security key: %d\n", ret);
1583 goto err;
1584 }
1585 if (ret != 0) {
1586 dev_warn(wm831x->dev, "Security key had non-zero value %x\n",
1587 ret);
1588 wm831x_reg_write(wm831x, WM831X_SECURITY_KEY, 0);
1589 }
1590 wm831x->locked = 1;
1591
1592 if (pdata->pre_init) {
1593 ret = pdata->pre_init(wm831x);
1594 if (ret != 0) {
1595 dev_err(wm831x->dev, "pre_init() failed: %d\n", ret);
1596 goto err;
1597 }
1598 }
1599
1600 for (i = 0; i < ARRAY_SIZE(pdata->gpio_defaults); i++) {
1601 if (!pdata->gpio_defaults[i])
1602 continue;
1603
1604 wm831x_reg_write(wm831x,
1605 WM831X_GPIO1_CONTROL + i,
1606 pdata->gpio_defaults[i] & 0xffff);
1607 }
1608
1609 /* Multiply by 10 as we have many subdevices of the same type */
1610 if (pdata->wm831x_num)
1611 wm831x_num = pdata->wm831x_num * 10;
1612 else
1613 wm831x_num = -1;
1614
1615 ret = wm831x_irq_init(wm831x, irq);
1616 if (ret != 0)
1617 goto err;
1618
1619 wm831x_auxadc_init(wm831x);
1620
1621 /* The core device is up, instantiate the subdevices. */
1622 switch (parent) {
1623 case WM8310:
1624 ret = mfd_add_devices(wm831x->dev, wm831x_num,
1625 wm8310_devs, ARRAY_SIZE(wm8310_devs),
1626 NULL, 0, NULL);
1627 break;
1628
1629 case WM8311:
1630 ret = mfd_add_devices(wm831x->dev, wm831x_num,
1631 wm8311_devs, ARRAY_SIZE(wm8311_devs),
1632 NULL, 0, NULL);
1633 if (!pdata->disable_touch)
1634 mfd_add_devices(wm831x->dev, wm831x_num,
1635 touch_devs, ARRAY_SIZE(touch_devs),
1636 NULL, 0, NULL);
1637 break;
1638
1639 case WM8312:
1640 ret = mfd_add_devices(wm831x->dev, wm831x_num,
1641 wm8312_devs, ARRAY_SIZE(wm8312_devs),
1642 NULL, 0, NULL);
1643 if (!pdata->disable_touch)
1644 mfd_add_devices(wm831x->dev, wm831x_num,
1645 touch_devs, ARRAY_SIZE(touch_devs),
1646 NULL, 0, NULL);
1647 break;
1648
1649 case WM8320:
1650 case WM8321:
1651 case WM8325:
1652 case WM8326:
1653 ret = mfd_add_devices(wm831x->dev, wm831x_num,
1654 wm8320_devs, ARRAY_SIZE(wm8320_devs),
1655 NULL, 0, NULL);
1656 break;
1657
1658 default:
1659 /* If this happens the bus probe function is buggy */
1660 BUG();
1661 }
1662
1663 if (ret != 0) {
1664 dev_err(wm831x->dev, "Failed to add children\n");
1665 goto err_irq;
1666 }
1667
1668 /* The RTC can only be used if the 32.768kHz crystal is
1669 * enabled; this can't be controlled by software at runtime.
1670 */
1671 ret = wm831x_reg_read(wm831x, WM831X_CLOCK_CONTROL_2);
1672 if (ret < 0) {
1673 dev_err(wm831x->dev, "Failed to read clock status: %d\n", ret);
1674 goto err_irq;
1675 }
1676
1677 if (ret & WM831X_XTAL_ENA) {
1678 ret = mfd_add_devices(wm831x->dev, wm831x_num,
1679 rtc_devs, ARRAY_SIZE(rtc_devs),
1680 NULL, 0, NULL);
1681 if (ret != 0) {
1682 dev_err(wm831x->dev, "Failed to add RTC: %d\n", ret);
1683 goto err_irq;
1684 }
1685 } else {
1686 dev_info(wm831x->dev, "32.768kHz clock disabled, no RTC\n");
1687 }
1688
1689 if (pdata->backlight) {
1690 /* Treat errors as non-critical */
1691 ret = mfd_add_devices(wm831x->dev, wm831x_num, backlight_devs,
1692 ARRAY_SIZE(backlight_devs), NULL,
1693 0, NULL);
1694 if (ret < 0)
1695 dev_err(wm831x->dev, "Failed to add backlight: %d\n",
1696 ret);
1697 }
1698
1699 wm831x_otp_init(wm831x);
1700
1701 if (pdata->post_init) {
1702 ret = pdata->post_init(wm831x);
1703 if (ret != 0) {
1704 dev_err(wm831x->dev, "post_init() failed: %d\n", ret);
1705 goto err_irq;
1706 }
1707 }
1708
1709 return 0;
1710
1711err_irq:
1712 wm831x_irq_exit(wm831x);
1713err:
1714 mfd_remove_devices(wm831x->dev);
1715 return ret;
1716}
1717
1718int wm831x_device_suspend(struct wm831x *wm831x)
1719{
1720 int reg, mask;
1721
1722 /* If the charger IRQs are a wake source then make sure we ack
1723 * them even if they're not actively being used (eg, no power
1724 * driver or no IRQ line wired up) then acknowledge the
1725 * interrupts otherwise suspend won't last very long.
1726 */
1727 if (wm831x->charger_irq_wake) {
1728 reg = wm831x_reg_read(wm831x, WM831X_INTERRUPT_STATUS_2_MASK);
1729
1730 mask = WM831X_CHG_BATT_HOT_EINT |
1731 WM831X_CHG_BATT_COLD_EINT |
1732 WM831X_CHG_BATT_FAIL_EINT |
1733 WM831X_CHG_OV_EINT | WM831X_CHG_END_EINT |
1734 WM831X_CHG_TO_EINT | WM831X_CHG_MODE_EINT |
1735 WM831X_CHG_START_EINT;
1736
1737 /* If any of the interrupts are masked read the statuses */
1738 if (reg & mask)
1739 reg = wm831x_reg_read(wm831x,
1740 WM831X_INTERRUPT_STATUS_2);
1741
1742 if (reg & mask) {
1743 dev_info(wm831x->dev,
1744 "Acknowledging masked charger IRQs: %x\n",
1745 reg & mask);
1746 wm831x_reg_write(wm831x, WM831X_INTERRUPT_STATUS_2,
1747 reg & mask);
1748 }
1749 }
1750
1751 return 0;
1752}
1753
1754void wm831x_device_shutdown(struct wm831x *wm831x)
1755{
1756 if (wm831x->soft_shutdown) {
1757 dev_info(wm831x->dev, "Initiating shutdown...\n");
1758 wm831x_set_bits(wm831x, WM831X_POWER_STATE, WM831X_CHIP_ON, 0);
1759 }
1760}
1761EXPORT_SYMBOL_GPL(wm831x_device_shutdown);
1// SPDX-License-Identifier: GPL-2.0-or-later
2/*
3 * wm831x-core.c -- Device access for Wolfson WM831x PMICs
4 *
5 * Copyright 2009 Wolfson Microelectronics PLC.
6 *
7 * Author: Mark Brown <broonie@opensource.wolfsonmicro.com>
8 */
9
10#include <linux/kernel.h>
11#include <linux/init.h>
12#include <linux/export.h>
13#include <linux/bcd.h>
14#include <linux/delay.h>
15#include <linux/mfd/core.h>
16#include <linux/slab.h>
17#include <linux/err.h>
18#include <linux/of.h>
19#include <linux/of_device.h>
20
21#include <linux/mfd/wm831x/core.h>
22#include <linux/mfd/wm831x/pdata.h>
23#include <linux/mfd/wm831x/irq.h>
24#include <linux/mfd/wm831x/auxadc.h>
25#include <linux/mfd/wm831x/otp.h>
26#include <linux/mfd/wm831x/pmu.h>
27#include <linux/mfd/wm831x/regulator.h>
28
29/* Current settings - values are 2*2^(reg_val/4) microamps. These are
30 * exported since they are used by multiple drivers.
31 */
32const unsigned int wm831x_isinkv_values[WM831X_ISINK_MAX_ISEL + 1] = {
33 2,
34 2,
35 3,
36 3,
37 4,
38 5,
39 6,
40 7,
41 8,
42 10,
43 11,
44 13,
45 16,
46 19,
47 23,
48 27,
49 32,
50 38,
51 45,
52 54,
53 64,
54 76,
55 91,
56 108,
57 128,
58 152,
59 181,
60 215,
61 256,
62 304,
63 362,
64 431,
65 512,
66 609,
67 724,
68 861,
69 1024,
70 1218,
71 1448,
72 1722,
73 2048,
74 2435,
75 2896,
76 3444,
77 4096,
78 4871,
79 5793,
80 6889,
81 8192,
82 9742,
83 11585,
84 13777,
85 16384,
86 19484,
87 23170,
88 27554,
89};
90EXPORT_SYMBOL_GPL(wm831x_isinkv_values);
91
92static int wm831x_reg_locked(struct wm831x *wm831x, unsigned short reg)
93{
94 if (!wm831x->locked)
95 return 0;
96
97 switch (reg) {
98 case WM831X_WATCHDOG:
99 case WM831X_DC4_CONTROL:
100 case WM831X_ON_PIN_CONTROL:
101 case WM831X_BACKUP_CHARGER_CONTROL:
102 case WM831X_CHARGER_CONTROL_1:
103 case WM831X_CHARGER_CONTROL_2:
104 return 1;
105
106 default:
107 return 0;
108 }
109}
110
111/**
112 * wm831x_reg_lock: Unlock user keyed registers
113 *
114 * The WM831x has a user key preventing writes to particularly
115 * critical registers. This function locks those registers,
116 * allowing writes to them.
117 *
118 * @wm831x: pointer to local driver data structure
119 */
120void wm831x_reg_lock(struct wm831x *wm831x)
121{
122 int ret;
123
124 ret = wm831x_reg_write(wm831x, WM831X_SECURITY_KEY, 0);
125 if (ret == 0) {
126 dev_vdbg(wm831x->dev, "Registers locked\n");
127
128 mutex_lock(&wm831x->io_lock);
129 WARN_ON(wm831x->locked);
130 wm831x->locked = 1;
131 mutex_unlock(&wm831x->io_lock);
132 } else {
133 dev_err(wm831x->dev, "Failed to lock registers: %d\n", ret);
134 }
135
136}
137EXPORT_SYMBOL_GPL(wm831x_reg_lock);
138
139/**
140 * wm831x_reg_unlock: Unlock user keyed registers
141 *
142 * The WM831x has a user key preventing writes to particularly
143 * critical registers. This function locks those registers,
144 * preventing spurious writes.
145 *
146 * @wm831x: pointer to local driver data structure
147 */
148int wm831x_reg_unlock(struct wm831x *wm831x)
149{
150 int ret;
151
152 /* 0x9716 is the value required to unlock the registers */
153 ret = wm831x_reg_write(wm831x, WM831X_SECURITY_KEY, 0x9716);
154 if (ret == 0) {
155 dev_vdbg(wm831x->dev, "Registers unlocked\n");
156
157 mutex_lock(&wm831x->io_lock);
158 WARN_ON(!wm831x->locked);
159 wm831x->locked = 0;
160 mutex_unlock(&wm831x->io_lock);
161 }
162
163 return ret;
164}
165EXPORT_SYMBOL_GPL(wm831x_reg_unlock);
166
167static bool wm831x_reg_readable(struct device *dev, unsigned int reg)
168{
169 switch (reg) {
170 case WM831X_RESET_ID:
171 case WM831X_REVISION:
172 case WM831X_PARENT_ID:
173 case WM831X_SYSVDD_CONTROL:
174 case WM831X_THERMAL_MONITORING:
175 case WM831X_POWER_STATE:
176 case WM831X_WATCHDOG:
177 case WM831X_ON_PIN_CONTROL:
178 case WM831X_RESET_CONTROL:
179 case WM831X_CONTROL_INTERFACE:
180 case WM831X_SECURITY_KEY:
181 case WM831X_SOFTWARE_SCRATCH:
182 case WM831X_OTP_CONTROL:
183 case WM831X_GPIO_LEVEL:
184 case WM831X_SYSTEM_STATUS:
185 case WM831X_ON_SOURCE:
186 case WM831X_OFF_SOURCE:
187 case WM831X_SYSTEM_INTERRUPTS:
188 case WM831X_INTERRUPT_STATUS_1:
189 case WM831X_INTERRUPT_STATUS_2:
190 case WM831X_INTERRUPT_STATUS_3:
191 case WM831X_INTERRUPT_STATUS_4:
192 case WM831X_INTERRUPT_STATUS_5:
193 case WM831X_IRQ_CONFIG:
194 case WM831X_SYSTEM_INTERRUPTS_MASK:
195 case WM831X_INTERRUPT_STATUS_1_MASK:
196 case WM831X_INTERRUPT_STATUS_2_MASK:
197 case WM831X_INTERRUPT_STATUS_3_MASK:
198 case WM831X_INTERRUPT_STATUS_4_MASK:
199 case WM831X_INTERRUPT_STATUS_5_MASK:
200 case WM831X_RTC_WRITE_COUNTER:
201 case WM831X_RTC_TIME_1:
202 case WM831X_RTC_TIME_2:
203 case WM831X_RTC_ALARM_1:
204 case WM831X_RTC_ALARM_2:
205 case WM831X_RTC_CONTROL:
206 case WM831X_RTC_TRIM:
207 case WM831X_TOUCH_CONTROL_1:
208 case WM831X_TOUCH_CONTROL_2:
209 case WM831X_TOUCH_DATA_X:
210 case WM831X_TOUCH_DATA_Y:
211 case WM831X_TOUCH_DATA_Z:
212 case WM831X_AUXADC_DATA:
213 case WM831X_AUXADC_CONTROL:
214 case WM831X_AUXADC_SOURCE:
215 case WM831X_COMPARATOR_CONTROL:
216 case WM831X_COMPARATOR_1:
217 case WM831X_COMPARATOR_2:
218 case WM831X_COMPARATOR_3:
219 case WM831X_COMPARATOR_4:
220 case WM831X_GPIO1_CONTROL:
221 case WM831X_GPIO2_CONTROL:
222 case WM831X_GPIO3_CONTROL:
223 case WM831X_GPIO4_CONTROL:
224 case WM831X_GPIO5_CONTROL:
225 case WM831X_GPIO6_CONTROL:
226 case WM831X_GPIO7_CONTROL:
227 case WM831X_GPIO8_CONTROL:
228 case WM831X_GPIO9_CONTROL:
229 case WM831X_GPIO10_CONTROL:
230 case WM831X_GPIO11_CONTROL:
231 case WM831X_GPIO12_CONTROL:
232 case WM831X_GPIO13_CONTROL:
233 case WM831X_GPIO14_CONTROL:
234 case WM831X_GPIO15_CONTROL:
235 case WM831X_GPIO16_CONTROL:
236 case WM831X_CHARGER_CONTROL_1:
237 case WM831X_CHARGER_CONTROL_2:
238 case WM831X_CHARGER_STATUS:
239 case WM831X_BACKUP_CHARGER_CONTROL:
240 case WM831X_STATUS_LED_1:
241 case WM831X_STATUS_LED_2:
242 case WM831X_CURRENT_SINK_1:
243 case WM831X_CURRENT_SINK_2:
244 case WM831X_DCDC_ENABLE:
245 case WM831X_LDO_ENABLE:
246 case WM831X_DCDC_STATUS:
247 case WM831X_LDO_STATUS:
248 case WM831X_DCDC_UV_STATUS:
249 case WM831X_LDO_UV_STATUS:
250 case WM831X_DC1_CONTROL_1:
251 case WM831X_DC1_CONTROL_2:
252 case WM831X_DC1_ON_CONFIG:
253 case WM831X_DC1_SLEEP_CONTROL:
254 case WM831X_DC1_DVS_CONTROL:
255 case WM831X_DC2_CONTROL_1:
256 case WM831X_DC2_CONTROL_2:
257 case WM831X_DC2_ON_CONFIG:
258 case WM831X_DC2_SLEEP_CONTROL:
259 case WM831X_DC2_DVS_CONTROL:
260 case WM831X_DC3_CONTROL_1:
261 case WM831X_DC3_CONTROL_2:
262 case WM831X_DC3_ON_CONFIG:
263 case WM831X_DC3_SLEEP_CONTROL:
264 case WM831X_DC4_CONTROL:
265 case WM831X_DC4_SLEEP_CONTROL:
266 case WM831X_EPE1_CONTROL:
267 case WM831X_EPE2_CONTROL:
268 case WM831X_LDO1_CONTROL:
269 case WM831X_LDO1_ON_CONTROL:
270 case WM831X_LDO1_SLEEP_CONTROL:
271 case WM831X_LDO2_CONTROL:
272 case WM831X_LDO2_ON_CONTROL:
273 case WM831X_LDO2_SLEEP_CONTROL:
274 case WM831X_LDO3_CONTROL:
275 case WM831X_LDO3_ON_CONTROL:
276 case WM831X_LDO3_SLEEP_CONTROL:
277 case WM831X_LDO4_CONTROL:
278 case WM831X_LDO4_ON_CONTROL:
279 case WM831X_LDO4_SLEEP_CONTROL:
280 case WM831X_LDO5_CONTROL:
281 case WM831X_LDO5_ON_CONTROL:
282 case WM831X_LDO5_SLEEP_CONTROL:
283 case WM831X_LDO6_CONTROL:
284 case WM831X_LDO6_ON_CONTROL:
285 case WM831X_LDO6_SLEEP_CONTROL:
286 case WM831X_LDO7_CONTROL:
287 case WM831X_LDO7_ON_CONTROL:
288 case WM831X_LDO7_SLEEP_CONTROL:
289 case WM831X_LDO8_CONTROL:
290 case WM831X_LDO8_ON_CONTROL:
291 case WM831X_LDO8_SLEEP_CONTROL:
292 case WM831X_LDO9_CONTROL:
293 case WM831X_LDO9_ON_CONTROL:
294 case WM831X_LDO9_SLEEP_CONTROL:
295 case WM831X_LDO10_CONTROL:
296 case WM831X_LDO10_ON_CONTROL:
297 case WM831X_LDO10_SLEEP_CONTROL:
298 case WM831X_LDO11_ON_CONTROL:
299 case WM831X_LDO11_SLEEP_CONTROL:
300 case WM831X_POWER_GOOD_SOURCE_1:
301 case WM831X_POWER_GOOD_SOURCE_2:
302 case WM831X_CLOCK_CONTROL_1:
303 case WM831X_CLOCK_CONTROL_2:
304 case WM831X_FLL_CONTROL_1:
305 case WM831X_FLL_CONTROL_2:
306 case WM831X_FLL_CONTROL_3:
307 case WM831X_FLL_CONTROL_4:
308 case WM831X_FLL_CONTROL_5:
309 case WM831X_UNIQUE_ID_1:
310 case WM831X_UNIQUE_ID_2:
311 case WM831X_UNIQUE_ID_3:
312 case WM831X_UNIQUE_ID_4:
313 case WM831X_UNIQUE_ID_5:
314 case WM831X_UNIQUE_ID_6:
315 case WM831X_UNIQUE_ID_7:
316 case WM831X_UNIQUE_ID_8:
317 case WM831X_FACTORY_OTP_ID:
318 case WM831X_FACTORY_OTP_1:
319 case WM831X_FACTORY_OTP_2:
320 case WM831X_FACTORY_OTP_3:
321 case WM831X_FACTORY_OTP_4:
322 case WM831X_FACTORY_OTP_5:
323 case WM831X_CUSTOMER_OTP_ID:
324 case WM831X_DC1_OTP_CONTROL:
325 case WM831X_DC2_OTP_CONTROL:
326 case WM831X_DC3_OTP_CONTROL:
327 case WM831X_LDO1_2_OTP_CONTROL:
328 case WM831X_LDO3_4_OTP_CONTROL:
329 case WM831X_LDO5_6_OTP_CONTROL:
330 case WM831X_LDO7_8_OTP_CONTROL:
331 case WM831X_LDO9_10_OTP_CONTROL:
332 case WM831X_LDO11_EPE_CONTROL:
333 case WM831X_GPIO1_OTP_CONTROL:
334 case WM831X_GPIO2_OTP_CONTROL:
335 case WM831X_GPIO3_OTP_CONTROL:
336 case WM831X_GPIO4_OTP_CONTROL:
337 case WM831X_GPIO5_OTP_CONTROL:
338 case WM831X_GPIO6_OTP_CONTROL:
339 case WM831X_DBE_CHECK_DATA:
340 return true;
341 default:
342 return false;
343 }
344}
345
346static bool wm831x_reg_writeable(struct device *dev, unsigned int reg)
347{
348 struct wm831x *wm831x = dev_get_drvdata(dev);
349
350 if (wm831x_reg_locked(wm831x, reg))
351 return false;
352
353 switch (reg) {
354 case WM831X_SYSVDD_CONTROL:
355 case WM831X_THERMAL_MONITORING:
356 case WM831X_POWER_STATE:
357 case WM831X_WATCHDOG:
358 case WM831X_ON_PIN_CONTROL:
359 case WM831X_RESET_CONTROL:
360 case WM831X_CONTROL_INTERFACE:
361 case WM831X_SECURITY_KEY:
362 case WM831X_SOFTWARE_SCRATCH:
363 case WM831X_OTP_CONTROL:
364 case WM831X_GPIO_LEVEL:
365 case WM831X_INTERRUPT_STATUS_1:
366 case WM831X_INTERRUPT_STATUS_2:
367 case WM831X_INTERRUPT_STATUS_3:
368 case WM831X_INTERRUPT_STATUS_4:
369 case WM831X_INTERRUPT_STATUS_5:
370 case WM831X_IRQ_CONFIG:
371 case WM831X_SYSTEM_INTERRUPTS_MASK:
372 case WM831X_INTERRUPT_STATUS_1_MASK:
373 case WM831X_INTERRUPT_STATUS_2_MASK:
374 case WM831X_INTERRUPT_STATUS_3_MASK:
375 case WM831X_INTERRUPT_STATUS_4_MASK:
376 case WM831X_INTERRUPT_STATUS_5_MASK:
377 case WM831X_RTC_TIME_1:
378 case WM831X_RTC_TIME_2:
379 case WM831X_RTC_ALARM_1:
380 case WM831X_RTC_ALARM_2:
381 case WM831X_RTC_CONTROL:
382 case WM831X_RTC_TRIM:
383 case WM831X_TOUCH_CONTROL_1:
384 case WM831X_TOUCH_CONTROL_2:
385 case WM831X_AUXADC_CONTROL:
386 case WM831X_AUXADC_SOURCE:
387 case WM831X_COMPARATOR_CONTROL:
388 case WM831X_COMPARATOR_1:
389 case WM831X_COMPARATOR_2:
390 case WM831X_COMPARATOR_3:
391 case WM831X_COMPARATOR_4:
392 case WM831X_GPIO1_CONTROL:
393 case WM831X_GPIO2_CONTROL:
394 case WM831X_GPIO3_CONTROL:
395 case WM831X_GPIO4_CONTROL:
396 case WM831X_GPIO5_CONTROL:
397 case WM831X_GPIO6_CONTROL:
398 case WM831X_GPIO7_CONTROL:
399 case WM831X_GPIO8_CONTROL:
400 case WM831X_GPIO9_CONTROL:
401 case WM831X_GPIO10_CONTROL:
402 case WM831X_GPIO11_CONTROL:
403 case WM831X_GPIO12_CONTROL:
404 case WM831X_GPIO13_CONTROL:
405 case WM831X_GPIO14_CONTROL:
406 case WM831X_GPIO15_CONTROL:
407 case WM831X_GPIO16_CONTROL:
408 case WM831X_CHARGER_CONTROL_1:
409 case WM831X_CHARGER_CONTROL_2:
410 case WM831X_CHARGER_STATUS:
411 case WM831X_BACKUP_CHARGER_CONTROL:
412 case WM831X_STATUS_LED_1:
413 case WM831X_STATUS_LED_2:
414 case WM831X_CURRENT_SINK_1:
415 case WM831X_CURRENT_SINK_2:
416 case WM831X_DCDC_ENABLE:
417 case WM831X_LDO_ENABLE:
418 case WM831X_DC1_CONTROL_1:
419 case WM831X_DC1_CONTROL_2:
420 case WM831X_DC1_ON_CONFIG:
421 case WM831X_DC1_SLEEP_CONTROL:
422 case WM831X_DC1_DVS_CONTROL:
423 case WM831X_DC2_CONTROL_1:
424 case WM831X_DC2_CONTROL_2:
425 case WM831X_DC2_ON_CONFIG:
426 case WM831X_DC2_SLEEP_CONTROL:
427 case WM831X_DC2_DVS_CONTROL:
428 case WM831X_DC3_CONTROL_1:
429 case WM831X_DC3_CONTROL_2:
430 case WM831X_DC3_ON_CONFIG:
431 case WM831X_DC3_SLEEP_CONTROL:
432 case WM831X_DC4_CONTROL:
433 case WM831X_DC4_SLEEP_CONTROL:
434 case WM831X_EPE1_CONTROL:
435 case WM831X_EPE2_CONTROL:
436 case WM831X_LDO1_CONTROL:
437 case WM831X_LDO1_ON_CONTROL:
438 case WM831X_LDO1_SLEEP_CONTROL:
439 case WM831X_LDO2_CONTROL:
440 case WM831X_LDO2_ON_CONTROL:
441 case WM831X_LDO2_SLEEP_CONTROL:
442 case WM831X_LDO3_CONTROL:
443 case WM831X_LDO3_ON_CONTROL:
444 case WM831X_LDO3_SLEEP_CONTROL:
445 case WM831X_LDO4_CONTROL:
446 case WM831X_LDO4_ON_CONTROL:
447 case WM831X_LDO4_SLEEP_CONTROL:
448 case WM831X_LDO5_CONTROL:
449 case WM831X_LDO5_ON_CONTROL:
450 case WM831X_LDO5_SLEEP_CONTROL:
451 case WM831X_LDO6_CONTROL:
452 case WM831X_LDO6_ON_CONTROL:
453 case WM831X_LDO6_SLEEP_CONTROL:
454 case WM831X_LDO7_CONTROL:
455 case WM831X_LDO7_ON_CONTROL:
456 case WM831X_LDO7_SLEEP_CONTROL:
457 case WM831X_LDO8_CONTROL:
458 case WM831X_LDO8_ON_CONTROL:
459 case WM831X_LDO8_SLEEP_CONTROL:
460 case WM831X_LDO9_CONTROL:
461 case WM831X_LDO9_ON_CONTROL:
462 case WM831X_LDO9_SLEEP_CONTROL:
463 case WM831X_LDO10_CONTROL:
464 case WM831X_LDO10_ON_CONTROL:
465 case WM831X_LDO10_SLEEP_CONTROL:
466 case WM831X_LDO11_ON_CONTROL:
467 case WM831X_LDO11_SLEEP_CONTROL:
468 case WM831X_POWER_GOOD_SOURCE_1:
469 case WM831X_POWER_GOOD_SOURCE_2:
470 case WM831X_CLOCK_CONTROL_1:
471 case WM831X_CLOCK_CONTROL_2:
472 case WM831X_FLL_CONTROL_1:
473 case WM831X_FLL_CONTROL_2:
474 case WM831X_FLL_CONTROL_3:
475 case WM831X_FLL_CONTROL_4:
476 case WM831X_FLL_CONTROL_5:
477 return true;
478 default:
479 return false;
480 }
481}
482
483static bool wm831x_reg_volatile(struct device *dev, unsigned int reg)
484{
485 switch (reg) {
486 case WM831X_SYSTEM_STATUS:
487 case WM831X_ON_SOURCE:
488 case WM831X_OFF_SOURCE:
489 case WM831X_GPIO_LEVEL:
490 case WM831X_SYSTEM_INTERRUPTS:
491 case WM831X_INTERRUPT_STATUS_1:
492 case WM831X_INTERRUPT_STATUS_2:
493 case WM831X_INTERRUPT_STATUS_3:
494 case WM831X_INTERRUPT_STATUS_4:
495 case WM831X_INTERRUPT_STATUS_5:
496 case WM831X_RTC_TIME_1:
497 case WM831X_RTC_TIME_2:
498 case WM831X_TOUCH_DATA_X:
499 case WM831X_TOUCH_DATA_Y:
500 case WM831X_TOUCH_DATA_Z:
501 case WM831X_AUXADC_DATA:
502 case WM831X_CHARGER_STATUS:
503 case WM831X_DCDC_STATUS:
504 case WM831X_LDO_STATUS:
505 case WM831X_DCDC_UV_STATUS:
506 case WM831X_LDO_UV_STATUS:
507 return true;
508 default:
509 return false;
510 }
511}
512
513/**
514 * wm831x_reg_read: Read a single WM831x register.
515 *
516 * @wm831x: Device to read from.
517 * @reg: Register to read.
518 */
519int wm831x_reg_read(struct wm831x *wm831x, unsigned short reg)
520{
521 unsigned int val;
522 int ret;
523
524 ret = regmap_read(wm831x->regmap, reg, &val);
525
526 if (ret < 0)
527 return ret;
528 else
529 return val;
530}
531EXPORT_SYMBOL_GPL(wm831x_reg_read);
532
533/**
534 * wm831x_bulk_read: Read multiple WM831x registers
535 *
536 * @wm831x: Device to read from
537 * @reg: First register
538 * @count: Number of registers
539 * @buf: Buffer to fill.
540 */
541int wm831x_bulk_read(struct wm831x *wm831x, unsigned short reg,
542 int count, u16 *buf)
543{
544 return regmap_bulk_read(wm831x->regmap, reg, buf, count);
545}
546EXPORT_SYMBOL_GPL(wm831x_bulk_read);
547
548static int wm831x_write(struct wm831x *wm831x, unsigned short reg,
549 int bytes, void *src)
550{
551 u16 *buf = src;
552 int i, ret;
553
554 BUG_ON(bytes % 2);
555 BUG_ON(bytes <= 0);
556
557 for (i = 0; i < bytes / 2; i++) {
558 if (wm831x_reg_locked(wm831x, reg))
559 return -EPERM;
560
561 dev_vdbg(wm831x->dev, "Write %04x to R%d(0x%x)\n",
562 buf[i], reg + i, reg + i);
563 ret = regmap_write(wm831x->regmap, reg + i, buf[i]);
564 if (ret != 0)
565 return ret;
566 }
567
568 return 0;
569}
570
571/**
572 * wm831x_reg_write: Write a single WM831x register.
573 *
574 * @wm831x: Device to write to.
575 * @reg: Register to write to.
576 * @val: Value to write.
577 */
578int wm831x_reg_write(struct wm831x *wm831x, unsigned short reg,
579 unsigned short val)
580{
581 int ret;
582
583 mutex_lock(&wm831x->io_lock);
584
585 ret = wm831x_write(wm831x, reg, 2, &val);
586
587 mutex_unlock(&wm831x->io_lock);
588
589 return ret;
590}
591EXPORT_SYMBOL_GPL(wm831x_reg_write);
592
593/**
594 * wm831x_set_bits: Set the value of a bitfield in a WM831x register
595 *
596 * @wm831x: Device to write to.
597 * @reg: Register to write to.
598 * @mask: Mask of bits to set.
599 * @val: Value to set (unshifted)
600 */
601int wm831x_set_bits(struct wm831x *wm831x, unsigned short reg,
602 unsigned short mask, unsigned short val)
603{
604 int ret;
605
606 mutex_lock(&wm831x->io_lock);
607
608 if (!wm831x_reg_locked(wm831x, reg))
609 ret = regmap_update_bits(wm831x->regmap, reg, mask, val);
610 else
611 ret = -EPERM;
612
613 mutex_unlock(&wm831x->io_lock);
614
615 return ret;
616}
617EXPORT_SYMBOL_GPL(wm831x_set_bits);
618
619static const struct resource wm831x_dcdc1_resources[] = {
620 {
621 .start = WM831X_DC1_CONTROL_1,
622 .end = WM831X_DC1_DVS_CONTROL,
623 .flags = IORESOURCE_REG,
624 },
625 DEFINE_RES_IRQ_NAMED(WM831X_IRQ_UV_DC1, "UV"),
626 DEFINE_RES_IRQ_NAMED(WM831X_IRQ_HC_DC1, "HC"),
627};
628
629
630static const struct resource wm831x_dcdc2_resources[] = {
631 {
632 .start = WM831X_DC2_CONTROL_1,
633 .end = WM831X_DC2_DVS_CONTROL,
634 .flags = IORESOURCE_REG,
635 },
636 DEFINE_RES_IRQ_NAMED(WM831X_IRQ_UV_DC2, "UV"),
637 DEFINE_RES_IRQ_NAMED(WM831X_IRQ_HC_DC2, "HC"),
638};
639
640static const struct resource wm831x_dcdc3_resources[] = {
641 {
642 .start = WM831X_DC3_CONTROL_1,
643 .end = WM831X_DC3_SLEEP_CONTROL,
644 .flags = IORESOURCE_REG,
645 },
646 DEFINE_RES_IRQ_NAMED(WM831X_IRQ_UV_DC3, "UV"),
647};
648
649static const struct resource wm831x_dcdc4_resources[] = {
650 {
651 .start = WM831X_DC4_CONTROL,
652 .end = WM831X_DC4_SLEEP_CONTROL,
653 .flags = IORESOURCE_REG,
654 },
655 DEFINE_RES_IRQ_NAMED(WM831X_IRQ_UV_DC4, "UV"),
656};
657
658static const struct resource wm8320_dcdc4_buck_resources[] = {
659 {
660 .start = WM831X_DC4_CONTROL,
661 .end = WM832X_DC4_SLEEP_CONTROL,
662 .flags = IORESOURCE_REG,
663 },
664 DEFINE_RES_IRQ_NAMED(WM831X_IRQ_UV_DC4, "UV"),
665};
666
667static const struct resource wm831x_gpio_resources[] = {
668 {
669 .start = WM831X_IRQ_GPIO_1,
670 .end = WM831X_IRQ_GPIO_16,
671 .flags = IORESOURCE_IRQ,
672 },
673};
674
675static const struct resource wm831x_isink1_resources[] = {
676 {
677 .start = WM831X_CURRENT_SINK_1,
678 .end = WM831X_CURRENT_SINK_1,
679 .flags = IORESOURCE_REG,
680 },
681 DEFINE_RES_IRQ(WM831X_IRQ_CS1),
682};
683
684static const struct resource wm831x_isink2_resources[] = {
685 {
686 .start = WM831X_CURRENT_SINK_2,
687 .end = WM831X_CURRENT_SINK_2,
688 .flags = IORESOURCE_REG,
689 },
690 DEFINE_RES_IRQ(WM831X_IRQ_CS2),
691};
692
693static const struct resource wm831x_ldo1_resources[] = {
694 {
695 .start = WM831X_LDO1_CONTROL,
696 .end = WM831X_LDO1_SLEEP_CONTROL,
697 .flags = IORESOURCE_REG,
698 },
699 DEFINE_RES_IRQ_NAMED(WM831X_IRQ_UV_LDO1, "UV"),
700};
701
702static const struct resource wm831x_ldo2_resources[] = {
703 {
704 .start = WM831X_LDO2_CONTROL,
705 .end = WM831X_LDO2_SLEEP_CONTROL,
706 .flags = IORESOURCE_REG,
707 },
708 DEFINE_RES_IRQ_NAMED(WM831X_IRQ_UV_LDO2, "UV"),
709};
710
711static const struct resource wm831x_ldo3_resources[] = {
712 {
713 .start = WM831X_LDO3_CONTROL,
714 .end = WM831X_LDO3_SLEEP_CONTROL,
715 .flags = IORESOURCE_REG,
716 },
717 DEFINE_RES_IRQ_NAMED(WM831X_IRQ_UV_LDO3, "UV"),
718};
719
720static const struct resource wm831x_ldo4_resources[] = {
721 {
722 .start = WM831X_LDO4_CONTROL,
723 .end = WM831X_LDO4_SLEEP_CONTROL,
724 .flags = IORESOURCE_REG,
725 },
726 DEFINE_RES_IRQ_NAMED(WM831X_IRQ_UV_LDO4, "UV"),
727};
728
729static const struct resource wm831x_ldo5_resources[] = {
730 {
731 .start = WM831X_LDO5_CONTROL,
732 .end = WM831X_LDO5_SLEEP_CONTROL,
733 .flags = IORESOURCE_REG,
734 },
735 DEFINE_RES_IRQ_NAMED(WM831X_IRQ_UV_LDO5, "UV"),
736};
737
738static const struct resource wm831x_ldo6_resources[] = {
739 {
740 .start = WM831X_LDO6_CONTROL,
741 .end = WM831X_LDO6_SLEEP_CONTROL,
742 .flags = IORESOURCE_REG,
743 },
744 DEFINE_RES_IRQ_NAMED(WM831X_IRQ_UV_LDO6, "UV"),
745};
746
747static const struct resource wm831x_ldo7_resources[] = {
748 {
749 .start = WM831X_LDO7_CONTROL,
750 .end = WM831X_LDO7_SLEEP_CONTROL,
751 .flags = IORESOURCE_REG,
752 },
753 DEFINE_RES_IRQ_NAMED(WM831X_IRQ_UV_LDO7, "UV"),
754};
755
756static const struct resource wm831x_ldo8_resources[] = {
757 {
758 .start = WM831X_LDO8_CONTROL,
759 .end = WM831X_LDO8_SLEEP_CONTROL,
760 .flags = IORESOURCE_REG,
761 },
762 DEFINE_RES_IRQ_NAMED(WM831X_IRQ_UV_LDO8, "UV"),
763};
764
765static const struct resource wm831x_ldo9_resources[] = {
766 {
767 .start = WM831X_LDO9_CONTROL,
768 .end = WM831X_LDO9_SLEEP_CONTROL,
769 .flags = IORESOURCE_REG,
770 },
771 DEFINE_RES_IRQ_NAMED(WM831X_IRQ_UV_LDO9, "UV"),
772};
773
774static const struct resource wm831x_ldo10_resources[] = {
775 {
776 .start = WM831X_LDO10_CONTROL,
777 .end = WM831X_LDO10_SLEEP_CONTROL,
778 .flags = IORESOURCE_REG,
779 },
780 DEFINE_RES_IRQ_NAMED(WM831X_IRQ_UV_LDO10, "UV"),
781};
782
783static const struct resource wm831x_ldo11_resources[] = {
784 {
785 .start = WM831X_LDO11_ON_CONTROL,
786 .end = WM831X_LDO11_SLEEP_CONTROL,
787 .flags = IORESOURCE_REG,
788 },
789};
790
791static const struct resource wm831x_on_resources[] = {
792 DEFINE_RES_IRQ(WM831X_IRQ_ON),
793};
794
795
796static const struct resource wm831x_power_resources[] = {
797 DEFINE_RES_IRQ_NAMED(WM831X_IRQ_PPM_SYSLO, "SYSLO"),
798 DEFINE_RES_IRQ_NAMED(WM831X_IRQ_PPM_PWR_SRC, "PWR SRC"),
799 DEFINE_RES_IRQ_NAMED(WM831X_IRQ_PPM_USB_CURR, "USB CURR"),
800 DEFINE_RES_IRQ_NAMED(WM831X_IRQ_CHG_BATT_HOT, "BATT HOT"),
801 DEFINE_RES_IRQ_NAMED(WM831X_IRQ_CHG_BATT_COLD, "BATT COLD"),
802 DEFINE_RES_IRQ_NAMED(WM831X_IRQ_CHG_BATT_FAIL, "BATT FAIL"),
803 DEFINE_RES_IRQ_NAMED(WM831X_IRQ_CHG_OV, "OV"),
804 DEFINE_RES_IRQ_NAMED(WM831X_IRQ_CHG_END, "END"),
805 DEFINE_RES_IRQ_NAMED(WM831X_IRQ_CHG_TO, "TO"),
806 DEFINE_RES_IRQ_NAMED(WM831X_IRQ_CHG_MODE, "MODE"),
807 DEFINE_RES_IRQ_NAMED(WM831X_IRQ_CHG_START, "START"),
808};
809
810static const struct resource wm831x_rtc_resources[] = {
811 DEFINE_RES_IRQ_NAMED(WM831X_IRQ_RTC_PER, "PER"),
812 DEFINE_RES_IRQ_NAMED(WM831X_IRQ_RTC_ALM, "ALM"),
813};
814
815static const struct resource wm831x_status1_resources[] = {
816 {
817 .start = WM831X_STATUS_LED_1,
818 .end = WM831X_STATUS_LED_1,
819 .flags = IORESOURCE_REG,
820 },
821};
822
823static const struct resource wm831x_status2_resources[] = {
824 {
825 .start = WM831X_STATUS_LED_2,
826 .end = WM831X_STATUS_LED_2,
827 .flags = IORESOURCE_REG,
828 },
829};
830
831static const struct resource wm831x_touch_resources[] = {
832 DEFINE_RES_IRQ_NAMED(WM831X_IRQ_TCHPD, "TCHPD"),
833 DEFINE_RES_IRQ_NAMED(WM831X_IRQ_TCHDATA, "TCHDATA"),
834};
835
836static const struct resource wm831x_wdt_resources[] = {
837 DEFINE_RES_IRQ(WM831X_IRQ_WDOG_TO),
838};
839
840static const struct mfd_cell wm8310_devs[] = {
841 {
842 .name = "wm831x-backup",
843 },
844 {
845 .name = "wm831x-buckv",
846 .id = 1,
847 .num_resources = ARRAY_SIZE(wm831x_dcdc1_resources),
848 .resources = wm831x_dcdc1_resources,
849 },
850 {
851 .name = "wm831x-buckv",
852 .id = 2,
853 .num_resources = ARRAY_SIZE(wm831x_dcdc2_resources),
854 .resources = wm831x_dcdc2_resources,
855 },
856 {
857 .name = "wm831x-buckp",
858 .id = 3,
859 .num_resources = ARRAY_SIZE(wm831x_dcdc3_resources),
860 .resources = wm831x_dcdc3_resources,
861 },
862 {
863 .name = "wm831x-boostp",
864 .id = 4,
865 .num_resources = ARRAY_SIZE(wm831x_dcdc4_resources),
866 .resources = wm831x_dcdc4_resources,
867 },
868 {
869 .name = "wm831x-clk",
870 },
871 {
872 .name = "wm831x-epe",
873 .id = 1,
874 },
875 {
876 .name = "wm831x-epe",
877 .id = 2,
878 },
879 {
880 .name = "wm831x-gpio",
881 .num_resources = ARRAY_SIZE(wm831x_gpio_resources),
882 .resources = wm831x_gpio_resources,
883 },
884 {
885 .name = "wm831x-hwmon",
886 },
887 {
888 .name = "wm831x-isink",
889 .id = 1,
890 .num_resources = ARRAY_SIZE(wm831x_isink1_resources),
891 .resources = wm831x_isink1_resources,
892 },
893 {
894 .name = "wm831x-isink",
895 .id = 2,
896 .num_resources = ARRAY_SIZE(wm831x_isink2_resources),
897 .resources = wm831x_isink2_resources,
898 },
899 {
900 .name = "wm831x-ldo",
901 .id = 1,
902 .num_resources = ARRAY_SIZE(wm831x_ldo1_resources),
903 .resources = wm831x_ldo1_resources,
904 },
905 {
906 .name = "wm831x-ldo",
907 .id = 2,
908 .num_resources = ARRAY_SIZE(wm831x_ldo2_resources),
909 .resources = wm831x_ldo2_resources,
910 },
911 {
912 .name = "wm831x-ldo",
913 .id = 3,
914 .num_resources = ARRAY_SIZE(wm831x_ldo3_resources),
915 .resources = wm831x_ldo3_resources,
916 },
917 {
918 .name = "wm831x-ldo",
919 .id = 4,
920 .num_resources = ARRAY_SIZE(wm831x_ldo4_resources),
921 .resources = wm831x_ldo4_resources,
922 },
923 {
924 .name = "wm831x-ldo",
925 .id = 5,
926 .num_resources = ARRAY_SIZE(wm831x_ldo5_resources),
927 .resources = wm831x_ldo5_resources,
928 },
929 {
930 .name = "wm831x-ldo",
931 .id = 6,
932 .num_resources = ARRAY_SIZE(wm831x_ldo6_resources),
933 .resources = wm831x_ldo6_resources,
934 },
935 {
936 .name = "wm831x-aldo",
937 .id = 7,
938 .num_resources = ARRAY_SIZE(wm831x_ldo7_resources),
939 .resources = wm831x_ldo7_resources,
940 },
941 {
942 .name = "wm831x-aldo",
943 .id = 8,
944 .num_resources = ARRAY_SIZE(wm831x_ldo8_resources),
945 .resources = wm831x_ldo8_resources,
946 },
947 {
948 .name = "wm831x-aldo",
949 .id = 9,
950 .num_resources = ARRAY_SIZE(wm831x_ldo9_resources),
951 .resources = wm831x_ldo9_resources,
952 },
953 {
954 .name = "wm831x-aldo",
955 .id = 10,
956 .num_resources = ARRAY_SIZE(wm831x_ldo10_resources),
957 .resources = wm831x_ldo10_resources,
958 },
959 {
960 .name = "wm831x-alive-ldo",
961 .id = 11,
962 .num_resources = ARRAY_SIZE(wm831x_ldo11_resources),
963 .resources = wm831x_ldo11_resources,
964 },
965 {
966 .name = "wm831x-on",
967 .num_resources = ARRAY_SIZE(wm831x_on_resources),
968 .resources = wm831x_on_resources,
969 },
970 {
971 .name = "wm831x-power",
972 .num_resources = ARRAY_SIZE(wm831x_power_resources),
973 .resources = wm831x_power_resources,
974 },
975 {
976 .name = "wm831x-status",
977 .id = 1,
978 .num_resources = ARRAY_SIZE(wm831x_status1_resources),
979 .resources = wm831x_status1_resources,
980 },
981 {
982 .name = "wm831x-status",
983 .id = 2,
984 .num_resources = ARRAY_SIZE(wm831x_status2_resources),
985 .resources = wm831x_status2_resources,
986 },
987 {
988 .name = "wm831x-watchdog",
989 .num_resources = ARRAY_SIZE(wm831x_wdt_resources),
990 .resources = wm831x_wdt_resources,
991 },
992};
993
994static const struct mfd_cell wm8311_devs[] = {
995 {
996 .name = "wm831x-backup",
997 },
998 {
999 .name = "wm831x-buckv",
1000 .id = 1,
1001 .num_resources = ARRAY_SIZE(wm831x_dcdc1_resources),
1002 .resources = wm831x_dcdc1_resources,
1003 },
1004 {
1005 .name = "wm831x-buckv",
1006 .id = 2,
1007 .num_resources = ARRAY_SIZE(wm831x_dcdc2_resources),
1008 .resources = wm831x_dcdc2_resources,
1009 },
1010 {
1011 .name = "wm831x-buckp",
1012 .id = 3,
1013 .num_resources = ARRAY_SIZE(wm831x_dcdc3_resources),
1014 .resources = wm831x_dcdc3_resources,
1015 },
1016 {
1017 .name = "wm831x-boostp",
1018 .id = 4,
1019 .num_resources = ARRAY_SIZE(wm831x_dcdc4_resources),
1020 .resources = wm831x_dcdc4_resources,
1021 },
1022 {
1023 .name = "wm831x-clk",
1024 },
1025 {
1026 .name = "wm831x-epe",
1027 .id = 1,
1028 },
1029 {
1030 .name = "wm831x-epe",
1031 .id = 2,
1032 },
1033 {
1034 .name = "wm831x-gpio",
1035 .num_resources = ARRAY_SIZE(wm831x_gpio_resources),
1036 .resources = wm831x_gpio_resources,
1037 },
1038 {
1039 .name = "wm831x-hwmon",
1040 },
1041 {
1042 .name = "wm831x-isink",
1043 .id = 1,
1044 .num_resources = ARRAY_SIZE(wm831x_isink1_resources),
1045 .resources = wm831x_isink1_resources,
1046 },
1047 {
1048 .name = "wm831x-isink",
1049 .id = 2,
1050 .num_resources = ARRAY_SIZE(wm831x_isink2_resources),
1051 .resources = wm831x_isink2_resources,
1052 },
1053 {
1054 .name = "wm831x-ldo",
1055 .id = 1,
1056 .num_resources = ARRAY_SIZE(wm831x_ldo1_resources),
1057 .resources = wm831x_ldo1_resources,
1058 },
1059 {
1060 .name = "wm831x-ldo",
1061 .id = 2,
1062 .num_resources = ARRAY_SIZE(wm831x_ldo2_resources),
1063 .resources = wm831x_ldo2_resources,
1064 },
1065 {
1066 .name = "wm831x-ldo",
1067 .id = 3,
1068 .num_resources = ARRAY_SIZE(wm831x_ldo3_resources),
1069 .resources = wm831x_ldo3_resources,
1070 },
1071 {
1072 .name = "wm831x-ldo",
1073 .id = 4,
1074 .num_resources = ARRAY_SIZE(wm831x_ldo4_resources),
1075 .resources = wm831x_ldo4_resources,
1076 },
1077 {
1078 .name = "wm831x-ldo",
1079 .id = 5,
1080 .num_resources = ARRAY_SIZE(wm831x_ldo5_resources),
1081 .resources = wm831x_ldo5_resources,
1082 },
1083 {
1084 .name = "wm831x-aldo",
1085 .id = 7,
1086 .num_resources = ARRAY_SIZE(wm831x_ldo7_resources),
1087 .resources = wm831x_ldo7_resources,
1088 },
1089 {
1090 .name = "wm831x-alive-ldo",
1091 .id = 11,
1092 .num_resources = ARRAY_SIZE(wm831x_ldo11_resources),
1093 .resources = wm831x_ldo11_resources,
1094 },
1095 {
1096 .name = "wm831x-on",
1097 .num_resources = ARRAY_SIZE(wm831x_on_resources),
1098 .resources = wm831x_on_resources,
1099 },
1100 {
1101 .name = "wm831x-power",
1102 .num_resources = ARRAY_SIZE(wm831x_power_resources),
1103 .resources = wm831x_power_resources,
1104 },
1105 {
1106 .name = "wm831x-status",
1107 .id = 1,
1108 .num_resources = ARRAY_SIZE(wm831x_status1_resources),
1109 .resources = wm831x_status1_resources,
1110 },
1111 {
1112 .name = "wm831x-status",
1113 .id = 2,
1114 .num_resources = ARRAY_SIZE(wm831x_status2_resources),
1115 .resources = wm831x_status2_resources,
1116 },
1117 {
1118 .name = "wm831x-watchdog",
1119 .num_resources = ARRAY_SIZE(wm831x_wdt_resources),
1120 .resources = wm831x_wdt_resources,
1121 },
1122};
1123
1124static const struct mfd_cell wm8312_devs[] = {
1125 {
1126 .name = "wm831x-backup",
1127 },
1128 {
1129 .name = "wm831x-buckv",
1130 .id = 1,
1131 .num_resources = ARRAY_SIZE(wm831x_dcdc1_resources),
1132 .resources = wm831x_dcdc1_resources,
1133 },
1134 {
1135 .name = "wm831x-buckv",
1136 .id = 2,
1137 .num_resources = ARRAY_SIZE(wm831x_dcdc2_resources),
1138 .resources = wm831x_dcdc2_resources,
1139 },
1140 {
1141 .name = "wm831x-buckp",
1142 .id = 3,
1143 .num_resources = ARRAY_SIZE(wm831x_dcdc3_resources),
1144 .resources = wm831x_dcdc3_resources,
1145 },
1146 {
1147 .name = "wm831x-boostp",
1148 .id = 4,
1149 .num_resources = ARRAY_SIZE(wm831x_dcdc4_resources),
1150 .resources = wm831x_dcdc4_resources,
1151 },
1152 {
1153 .name = "wm831x-clk",
1154 },
1155 {
1156 .name = "wm831x-epe",
1157 .id = 1,
1158 },
1159 {
1160 .name = "wm831x-epe",
1161 .id = 2,
1162 },
1163 {
1164 .name = "wm831x-gpio",
1165 .num_resources = ARRAY_SIZE(wm831x_gpio_resources),
1166 .resources = wm831x_gpio_resources,
1167 },
1168 {
1169 .name = "wm831x-hwmon",
1170 },
1171 {
1172 .name = "wm831x-isink",
1173 .id = 1,
1174 .num_resources = ARRAY_SIZE(wm831x_isink1_resources),
1175 .resources = wm831x_isink1_resources,
1176 },
1177 {
1178 .name = "wm831x-isink",
1179 .id = 2,
1180 .num_resources = ARRAY_SIZE(wm831x_isink2_resources),
1181 .resources = wm831x_isink2_resources,
1182 },
1183 {
1184 .name = "wm831x-ldo",
1185 .id = 1,
1186 .num_resources = ARRAY_SIZE(wm831x_ldo1_resources),
1187 .resources = wm831x_ldo1_resources,
1188 },
1189 {
1190 .name = "wm831x-ldo",
1191 .id = 2,
1192 .num_resources = ARRAY_SIZE(wm831x_ldo2_resources),
1193 .resources = wm831x_ldo2_resources,
1194 },
1195 {
1196 .name = "wm831x-ldo",
1197 .id = 3,
1198 .num_resources = ARRAY_SIZE(wm831x_ldo3_resources),
1199 .resources = wm831x_ldo3_resources,
1200 },
1201 {
1202 .name = "wm831x-ldo",
1203 .id = 4,
1204 .num_resources = ARRAY_SIZE(wm831x_ldo4_resources),
1205 .resources = wm831x_ldo4_resources,
1206 },
1207 {
1208 .name = "wm831x-ldo",
1209 .id = 5,
1210 .num_resources = ARRAY_SIZE(wm831x_ldo5_resources),
1211 .resources = wm831x_ldo5_resources,
1212 },
1213 {
1214 .name = "wm831x-ldo",
1215 .id = 6,
1216 .num_resources = ARRAY_SIZE(wm831x_ldo6_resources),
1217 .resources = wm831x_ldo6_resources,
1218 },
1219 {
1220 .name = "wm831x-aldo",
1221 .id = 7,
1222 .num_resources = ARRAY_SIZE(wm831x_ldo7_resources),
1223 .resources = wm831x_ldo7_resources,
1224 },
1225 {
1226 .name = "wm831x-aldo",
1227 .id = 8,
1228 .num_resources = ARRAY_SIZE(wm831x_ldo8_resources),
1229 .resources = wm831x_ldo8_resources,
1230 },
1231 {
1232 .name = "wm831x-aldo",
1233 .id = 9,
1234 .num_resources = ARRAY_SIZE(wm831x_ldo9_resources),
1235 .resources = wm831x_ldo9_resources,
1236 },
1237 {
1238 .name = "wm831x-aldo",
1239 .id = 10,
1240 .num_resources = ARRAY_SIZE(wm831x_ldo10_resources),
1241 .resources = wm831x_ldo10_resources,
1242 },
1243 {
1244 .name = "wm831x-alive-ldo",
1245 .id = 11,
1246 .num_resources = ARRAY_SIZE(wm831x_ldo11_resources),
1247 .resources = wm831x_ldo11_resources,
1248 },
1249 {
1250 .name = "wm831x-on",
1251 .num_resources = ARRAY_SIZE(wm831x_on_resources),
1252 .resources = wm831x_on_resources,
1253 },
1254 {
1255 .name = "wm831x-power",
1256 .num_resources = ARRAY_SIZE(wm831x_power_resources),
1257 .resources = wm831x_power_resources,
1258 },
1259 {
1260 .name = "wm831x-status",
1261 .id = 1,
1262 .num_resources = ARRAY_SIZE(wm831x_status1_resources),
1263 .resources = wm831x_status1_resources,
1264 },
1265 {
1266 .name = "wm831x-status",
1267 .id = 2,
1268 .num_resources = ARRAY_SIZE(wm831x_status2_resources),
1269 .resources = wm831x_status2_resources,
1270 },
1271 {
1272 .name = "wm831x-watchdog",
1273 .num_resources = ARRAY_SIZE(wm831x_wdt_resources),
1274 .resources = wm831x_wdt_resources,
1275 },
1276};
1277
1278static const struct mfd_cell wm8320_devs[] = {
1279 {
1280 .name = "wm831x-backup",
1281 },
1282 {
1283 .name = "wm831x-buckv",
1284 .id = 1,
1285 .num_resources = ARRAY_SIZE(wm831x_dcdc1_resources),
1286 .resources = wm831x_dcdc1_resources,
1287 },
1288 {
1289 .name = "wm831x-buckv",
1290 .id = 2,
1291 .num_resources = ARRAY_SIZE(wm831x_dcdc2_resources),
1292 .resources = wm831x_dcdc2_resources,
1293 },
1294 {
1295 .name = "wm831x-buckp",
1296 .id = 3,
1297 .num_resources = ARRAY_SIZE(wm831x_dcdc3_resources),
1298 .resources = wm831x_dcdc3_resources,
1299 },
1300 {
1301 .name = "wm831x-buckp",
1302 .id = 4,
1303 .num_resources = ARRAY_SIZE(wm8320_dcdc4_buck_resources),
1304 .resources = wm8320_dcdc4_buck_resources,
1305 },
1306 {
1307 .name = "wm831x-clk",
1308 },
1309 {
1310 .name = "wm831x-gpio",
1311 .num_resources = ARRAY_SIZE(wm831x_gpio_resources),
1312 .resources = wm831x_gpio_resources,
1313 },
1314 {
1315 .name = "wm831x-hwmon",
1316 },
1317 {
1318 .name = "wm831x-ldo",
1319 .id = 1,
1320 .num_resources = ARRAY_SIZE(wm831x_ldo1_resources),
1321 .resources = wm831x_ldo1_resources,
1322 },
1323 {
1324 .name = "wm831x-ldo",
1325 .id = 2,
1326 .num_resources = ARRAY_SIZE(wm831x_ldo2_resources),
1327 .resources = wm831x_ldo2_resources,
1328 },
1329 {
1330 .name = "wm831x-ldo",
1331 .id = 3,
1332 .num_resources = ARRAY_SIZE(wm831x_ldo3_resources),
1333 .resources = wm831x_ldo3_resources,
1334 },
1335 {
1336 .name = "wm831x-ldo",
1337 .id = 4,
1338 .num_resources = ARRAY_SIZE(wm831x_ldo4_resources),
1339 .resources = wm831x_ldo4_resources,
1340 },
1341 {
1342 .name = "wm831x-ldo",
1343 .id = 5,
1344 .num_resources = ARRAY_SIZE(wm831x_ldo5_resources),
1345 .resources = wm831x_ldo5_resources,
1346 },
1347 {
1348 .name = "wm831x-ldo",
1349 .id = 6,
1350 .num_resources = ARRAY_SIZE(wm831x_ldo6_resources),
1351 .resources = wm831x_ldo6_resources,
1352 },
1353 {
1354 .name = "wm831x-aldo",
1355 .id = 7,
1356 .num_resources = ARRAY_SIZE(wm831x_ldo7_resources),
1357 .resources = wm831x_ldo7_resources,
1358 },
1359 {
1360 .name = "wm831x-aldo",
1361 .id = 8,
1362 .num_resources = ARRAY_SIZE(wm831x_ldo8_resources),
1363 .resources = wm831x_ldo8_resources,
1364 },
1365 {
1366 .name = "wm831x-aldo",
1367 .id = 9,
1368 .num_resources = ARRAY_SIZE(wm831x_ldo9_resources),
1369 .resources = wm831x_ldo9_resources,
1370 },
1371 {
1372 .name = "wm831x-aldo",
1373 .id = 10,
1374 .num_resources = ARRAY_SIZE(wm831x_ldo10_resources),
1375 .resources = wm831x_ldo10_resources,
1376 },
1377 {
1378 .name = "wm831x-alive-ldo",
1379 .id = 11,
1380 .num_resources = ARRAY_SIZE(wm831x_ldo11_resources),
1381 .resources = wm831x_ldo11_resources,
1382 },
1383 {
1384 .name = "wm831x-on",
1385 .num_resources = ARRAY_SIZE(wm831x_on_resources),
1386 .resources = wm831x_on_resources,
1387 },
1388 {
1389 .name = "wm831x-status",
1390 .id = 1,
1391 .num_resources = ARRAY_SIZE(wm831x_status1_resources),
1392 .resources = wm831x_status1_resources,
1393 },
1394 {
1395 .name = "wm831x-status",
1396 .id = 2,
1397 .num_resources = ARRAY_SIZE(wm831x_status2_resources),
1398 .resources = wm831x_status2_resources,
1399 },
1400 {
1401 .name = "wm831x-watchdog",
1402 .num_resources = ARRAY_SIZE(wm831x_wdt_resources),
1403 .resources = wm831x_wdt_resources,
1404 },
1405};
1406
1407static const struct mfd_cell touch_devs[] = {
1408 {
1409 .name = "wm831x-touch",
1410 .num_resources = ARRAY_SIZE(wm831x_touch_resources),
1411 .resources = wm831x_touch_resources,
1412 },
1413};
1414
1415static const struct mfd_cell rtc_devs[] = {
1416 {
1417 .name = "wm831x-rtc",
1418 .num_resources = ARRAY_SIZE(wm831x_rtc_resources),
1419 .resources = wm831x_rtc_resources,
1420 },
1421};
1422
1423static const struct mfd_cell backlight_devs[] = {
1424 {
1425 .name = "wm831x-backlight",
1426 },
1427};
1428
1429struct regmap_config wm831x_regmap_config = {
1430 .reg_bits = 16,
1431 .val_bits = 16,
1432
1433 .cache_type = REGCACHE_RBTREE,
1434
1435 .max_register = WM831X_DBE_CHECK_DATA,
1436 .readable_reg = wm831x_reg_readable,
1437 .writeable_reg = wm831x_reg_writeable,
1438 .volatile_reg = wm831x_reg_volatile,
1439};
1440EXPORT_SYMBOL_GPL(wm831x_regmap_config);
1441
1442const struct of_device_id wm831x_of_match[] = {
1443 { .compatible = "wlf,wm8310", .data = (void *)WM8310 },
1444 { .compatible = "wlf,wm8311", .data = (void *)WM8311 },
1445 { .compatible = "wlf,wm8312", .data = (void *)WM8312 },
1446 { .compatible = "wlf,wm8320", .data = (void *)WM8320 },
1447 { .compatible = "wlf,wm8321", .data = (void *)WM8321 },
1448 { .compatible = "wlf,wm8325", .data = (void *)WM8325 },
1449 { .compatible = "wlf,wm8326", .data = (void *)WM8326 },
1450 { },
1451};
1452EXPORT_SYMBOL_GPL(wm831x_of_match);
1453
1454/*
1455 * Instantiate the generic non-control parts of the device.
1456 */
1457int wm831x_device_init(struct wm831x *wm831x, int irq)
1458{
1459 struct wm831x_pdata *pdata = &wm831x->pdata;
1460 int rev, wm831x_num;
1461 enum wm831x_parent parent;
1462 int ret, i;
1463
1464 mutex_init(&wm831x->io_lock);
1465 mutex_init(&wm831x->key_lock);
1466 dev_set_drvdata(wm831x->dev, wm831x);
1467
1468 wm831x->soft_shutdown = pdata->soft_shutdown;
1469
1470 ret = wm831x_reg_read(wm831x, WM831X_PARENT_ID);
1471 if (ret < 0) {
1472 dev_err(wm831x->dev, "Failed to read parent ID: %d\n", ret);
1473 goto err;
1474 }
1475 switch (ret) {
1476 case 0x6204:
1477 case 0x6246:
1478 break;
1479 default:
1480 dev_err(wm831x->dev, "Device is not a WM831x: ID %x\n", ret);
1481 ret = -EINVAL;
1482 goto err;
1483 }
1484
1485 ret = wm831x_reg_read(wm831x, WM831X_REVISION);
1486 if (ret < 0) {
1487 dev_err(wm831x->dev, "Failed to read revision: %d\n", ret);
1488 goto err;
1489 }
1490 rev = (ret & WM831X_PARENT_REV_MASK) >> WM831X_PARENT_REV_SHIFT;
1491
1492 ret = wm831x_reg_read(wm831x, WM831X_RESET_ID);
1493 if (ret < 0) {
1494 dev_err(wm831x->dev, "Failed to read device ID: %d\n", ret);
1495 goto err;
1496 }
1497
1498 /* Some engineering samples do not have the ID set, rely on
1499 * the device being registered correctly.
1500 */
1501 if (ret == 0) {
1502 dev_info(wm831x->dev, "Device is an engineering sample\n");
1503 ret = wm831x->type;
1504 }
1505
1506 switch (ret) {
1507 case WM8310:
1508 parent = WM8310;
1509 wm831x->num_gpio = 16;
1510 wm831x->charger_irq_wake = 1;
1511 if (rev > 0) {
1512 wm831x->has_gpio_ena = 1;
1513 wm831x->has_cs_sts = 1;
1514 }
1515
1516 dev_info(wm831x->dev, "WM8310 revision %c\n", 'A' + rev);
1517 break;
1518
1519 case WM8311:
1520 parent = WM8311;
1521 wm831x->num_gpio = 16;
1522 wm831x->charger_irq_wake = 1;
1523 if (rev > 0) {
1524 wm831x->has_gpio_ena = 1;
1525 wm831x->has_cs_sts = 1;
1526 }
1527
1528 dev_info(wm831x->dev, "WM8311 revision %c\n", 'A' + rev);
1529 break;
1530
1531 case WM8312:
1532 parent = WM8312;
1533 wm831x->num_gpio = 16;
1534 wm831x->charger_irq_wake = 1;
1535 if (rev > 0) {
1536 wm831x->has_gpio_ena = 1;
1537 wm831x->has_cs_sts = 1;
1538 }
1539
1540 dev_info(wm831x->dev, "WM8312 revision %c\n", 'A' + rev);
1541 break;
1542
1543 case WM8320:
1544 parent = WM8320;
1545 wm831x->num_gpio = 12;
1546 dev_info(wm831x->dev, "WM8320 revision %c\n", 'A' + rev);
1547 break;
1548
1549 case WM8321:
1550 parent = WM8321;
1551 wm831x->num_gpio = 12;
1552 dev_info(wm831x->dev, "WM8321 revision %c\n", 'A' + rev);
1553 break;
1554
1555 case WM8325:
1556 parent = WM8325;
1557 wm831x->num_gpio = 12;
1558 dev_info(wm831x->dev, "WM8325 revision %c\n", 'A' + rev);
1559 break;
1560
1561 case WM8326:
1562 parent = WM8326;
1563 wm831x->num_gpio = 12;
1564 dev_info(wm831x->dev, "WM8326 revision %c\n", 'A' + rev);
1565 break;
1566
1567 default:
1568 dev_err(wm831x->dev, "Unknown WM831x device %04x\n", ret);
1569 ret = -EINVAL;
1570 goto err;
1571 }
1572
1573 /* This will need revisiting in future but is OK for all
1574 * current parts.
1575 */
1576 if (parent != wm831x->type)
1577 dev_warn(wm831x->dev, "Device was registered as a WM%x\n",
1578 wm831x->type);
1579
1580 /* Bootstrap the user key */
1581 ret = wm831x_reg_read(wm831x, WM831X_SECURITY_KEY);
1582 if (ret < 0) {
1583 dev_err(wm831x->dev, "Failed to read security key: %d\n", ret);
1584 goto err;
1585 }
1586 if (ret != 0) {
1587 dev_warn(wm831x->dev, "Security key had non-zero value %x\n",
1588 ret);
1589 wm831x_reg_write(wm831x, WM831X_SECURITY_KEY, 0);
1590 }
1591 wm831x->locked = 1;
1592
1593 if (pdata->pre_init) {
1594 ret = pdata->pre_init(wm831x);
1595 if (ret != 0) {
1596 dev_err(wm831x->dev, "pre_init() failed: %d\n", ret);
1597 goto err;
1598 }
1599 }
1600
1601 for (i = 0; i < ARRAY_SIZE(pdata->gpio_defaults); i++) {
1602 if (!pdata->gpio_defaults[i])
1603 continue;
1604
1605 wm831x_reg_write(wm831x,
1606 WM831X_GPIO1_CONTROL + i,
1607 pdata->gpio_defaults[i] & 0xffff);
1608 }
1609
1610 /* Multiply by 10 as we have many subdevices of the same type */
1611 if (pdata->wm831x_num)
1612 wm831x_num = pdata->wm831x_num * 10;
1613 else
1614 wm831x_num = -1;
1615
1616 ret = wm831x_irq_init(wm831x, irq);
1617 if (ret != 0)
1618 goto err;
1619
1620 wm831x_auxadc_init(wm831x);
1621
1622 /* The core device is up, instantiate the subdevices. */
1623 switch (parent) {
1624 case WM8310:
1625 ret = mfd_add_devices(wm831x->dev, wm831x_num,
1626 wm8310_devs, ARRAY_SIZE(wm8310_devs),
1627 NULL, 0, NULL);
1628 break;
1629
1630 case WM8311:
1631 ret = mfd_add_devices(wm831x->dev, wm831x_num,
1632 wm8311_devs, ARRAY_SIZE(wm8311_devs),
1633 NULL, 0, NULL);
1634 if (!pdata->disable_touch)
1635 mfd_add_devices(wm831x->dev, wm831x_num,
1636 touch_devs, ARRAY_SIZE(touch_devs),
1637 NULL, 0, NULL);
1638 break;
1639
1640 case WM8312:
1641 ret = mfd_add_devices(wm831x->dev, wm831x_num,
1642 wm8312_devs, ARRAY_SIZE(wm8312_devs),
1643 NULL, 0, NULL);
1644 if (!pdata->disable_touch)
1645 mfd_add_devices(wm831x->dev, wm831x_num,
1646 touch_devs, ARRAY_SIZE(touch_devs),
1647 NULL, 0, NULL);
1648 break;
1649
1650 case WM8320:
1651 case WM8321:
1652 case WM8325:
1653 case WM8326:
1654 ret = mfd_add_devices(wm831x->dev, wm831x_num,
1655 wm8320_devs, ARRAY_SIZE(wm8320_devs),
1656 NULL, 0, NULL);
1657 break;
1658
1659 default:
1660 /* If this happens the bus probe function is buggy */
1661 BUG();
1662 }
1663
1664 if (ret != 0) {
1665 dev_err(wm831x->dev, "Failed to add children\n");
1666 goto err_irq;
1667 }
1668
1669 /* The RTC can only be used if the 32.768kHz crystal is
1670 * enabled; this can't be controlled by software at runtime.
1671 */
1672 ret = wm831x_reg_read(wm831x, WM831X_CLOCK_CONTROL_2);
1673 if (ret < 0) {
1674 dev_err(wm831x->dev, "Failed to read clock status: %d\n", ret);
1675 goto err_irq;
1676 }
1677
1678 if (ret & WM831X_XTAL_ENA) {
1679 ret = mfd_add_devices(wm831x->dev, wm831x_num,
1680 rtc_devs, ARRAY_SIZE(rtc_devs),
1681 NULL, 0, NULL);
1682 if (ret != 0) {
1683 dev_err(wm831x->dev, "Failed to add RTC: %d\n", ret);
1684 goto err_irq;
1685 }
1686 } else {
1687 dev_info(wm831x->dev, "32.768kHz clock disabled, no RTC\n");
1688 }
1689
1690 if (pdata->backlight) {
1691 /* Treat errors as non-critical */
1692 ret = mfd_add_devices(wm831x->dev, wm831x_num, backlight_devs,
1693 ARRAY_SIZE(backlight_devs), NULL,
1694 0, NULL);
1695 if (ret < 0)
1696 dev_err(wm831x->dev, "Failed to add backlight: %d\n",
1697 ret);
1698 }
1699
1700 wm831x_otp_init(wm831x);
1701
1702 if (pdata->post_init) {
1703 ret = pdata->post_init(wm831x);
1704 if (ret != 0) {
1705 dev_err(wm831x->dev, "post_init() failed: %d\n", ret);
1706 goto err_irq;
1707 }
1708 }
1709
1710 return 0;
1711
1712err_irq:
1713 wm831x_irq_exit(wm831x);
1714err:
1715 mfd_remove_devices(wm831x->dev);
1716 return ret;
1717}
1718
1719int wm831x_device_suspend(struct wm831x *wm831x)
1720{
1721 int reg, mask;
1722
1723 /* If the charger IRQs are a wake source then make sure we ack
1724 * them even if they're not actively being used (eg, no power
1725 * driver or no IRQ line wired up) then acknowledge the
1726 * interrupts otherwise suspend won't last very long.
1727 */
1728 if (wm831x->charger_irq_wake) {
1729 reg = wm831x_reg_read(wm831x, WM831X_INTERRUPT_STATUS_2_MASK);
1730
1731 mask = WM831X_CHG_BATT_HOT_EINT |
1732 WM831X_CHG_BATT_COLD_EINT |
1733 WM831X_CHG_BATT_FAIL_EINT |
1734 WM831X_CHG_OV_EINT | WM831X_CHG_END_EINT |
1735 WM831X_CHG_TO_EINT | WM831X_CHG_MODE_EINT |
1736 WM831X_CHG_START_EINT;
1737
1738 /* If any of the interrupts are masked read the statuses */
1739 if (reg & mask)
1740 reg = wm831x_reg_read(wm831x,
1741 WM831X_INTERRUPT_STATUS_2);
1742
1743 if (reg & mask) {
1744 dev_info(wm831x->dev,
1745 "Acknowledging masked charger IRQs: %x\n",
1746 reg & mask);
1747 wm831x_reg_write(wm831x, WM831X_INTERRUPT_STATUS_2,
1748 reg & mask);
1749 }
1750 }
1751
1752 return 0;
1753}
1754
1755void wm831x_device_shutdown(struct wm831x *wm831x)
1756{
1757 if (wm831x->soft_shutdown) {
1758 dev_info(wm831x->dev, "Initiating shutdown...\n");
1759 wm831x_set_bits(wm831x, WM831X_POWER_STATE, WM831X_CHIP_ON, 0);
1760 }
1761}
1762EXPORT_SYMBOL_GPL(wm831x_device_shutdown);