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OMAPDSS: VENC: fix NULL pointer dereference in DSS2 VENC sysfs debug attr on OMAP4
[zen-stable.git] / drivers / mfd / wm831x-core.c
blobf5e54fae8ada924bb029a1afe9a0239f3eb959b3
1 /*
2 * wm831x-core.c -- Device access for Wolfson WM831x PMICs
3 *
4 * Copyright 2009 Wolfson Microelectronics PLC.
5 *
6 * Author: Mark Brown <broonie@opensource.wolfsonmicro.com>
7 *
8 * This program is free software; you can redistribute it and/or modify it
9 * under the terms of the GNU General Public License as published by the
10 * Free Software Foundation; either version 2 of the License, or (at your
11 * option) any later version.
12 *
13 */
14
15 #include <linux/kernel.h>
16 #include <linux/module.h>
17 #include <linux/bcd.h>
18 #include <linux/delay.h>
19 #include <linux/mfd/core.h>
20 #include <linux/slab.h>
21 #include <linux/err.h>
22
23 #include <linux/mfd/wm831x/core.h>
24 #include <linux/mfd/wm831x/pdata.h>
25 #include <linux/mfd/wm831x/irq.h>
26 #include <linux/mfd/wm831x/auxadc.h>
27 #include <linux/mfd/wm831x/otp.h>
28 #include <linux/mfd/wm831x/pmu.h>
29 #include <linux/mfd/wm831x/regulator.h>
30
31 /* Current settings - values are 2*2^(reg_val/4) microamps. These are
32 * exported since they are used by multiple drivers.
33 */
34 int wm831x_isinkv_values[WM831X_ISINK_MAX_ISEL + 1] = {
35 2,
36 2,
37 3,
38 3,
39 4,
40 5,
41 6,
42 7,
43 8,
44 10,
45 11,
46 13,
47 16,
48 19,
49 23,
50 27,
51 32,
52 38,
53 45,
54 54,
55 64,
56 76,
57 91,
58 108,
59 128,
60 152,
61 181,
62 215,
63 256,
64 304,
65 362,
66 431,
67 512,
68 609,
69 724,
70 861,
71 1024,
72 1218,
73 1448,
74 1722,
75 2048,
76 2435,
77 2896,
78 3444,
79 4096,
80 4871,
81 5793,
82 6889,
83 8192,
84 9742,
85 11585,
86 13777,
87 16384,
88 19484,
89 23170,
90 27554,
91 };
92 EXPORT_SYMBOL_GPL(wm831x_isinkv_values);
93
94 static int wm831x_reg_locked(struct wm831x *wm831x, unsigned short reg)
95 {
96 if (!wm831x->locked)
97 return 0;
98
99 switch (reg) {
100 case WM831X_WATCHDOG:
101 case WM831X_DC4_CONTROL:
102 case WM831X_ON_PIN_CONTROL:
103 case WM831X_BACKUP_CHARGER_CONTROL:
104 case WM831X_CHARGER_CONTROL_1:
105 case WM831X_CHARGER_CONTROL_2:
106 return 1;
107
108 default:
109 return 0;
110 }
111 }
112
113 /**
114 * wm831x_reg_unlock: Unlock user keyed registers
115 *
116 * The WM831x has a user key preventing writes to particularly
117 * critical registers. This function locks those registers,
118 * allowing writes to them.
119 */
120 void 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 }
137 EXPORT_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 int wm831x_reg_unlock(struct wm831x *wm831x)
147 {
148 int ret;
149
150 /* 0x9716 is the value required to unlock the registers */
151 ret = wm831x_reg_write(wm831x, WM831X_SECURITY_KEY, 0x9716);
152 if (ret == 0) {
153 dev_vdbg(wm831x->dev, "Registers unlocked\n");
154
155 mutex_lock(&wm831x->io_lock);
156 WARN_ON(!wm831x->locked);
157 wm831x->locked = 0;
158 mutex_unlock(&wm831x->io_lock);
159 }
160
161 return ret;
162 }
163 EXPORT_SYMBOL_GPL(wm831x_reg_unlock);
164
165 static bool wm831x_reg_readable(struct device *dev, unsigned int reg)
166 {
167 switch (reg) {
168 case WM831X_RESET_ID:
169 case WM831X_REVISION:
170 case WM831X_PARENT_ID:
171 case WM831X_SYSVDD_CONTROL:
172 case WM831X_THERMAL_MONITORING:
173 case WM831X_POWER_STATE:
174 case WM831X_WATCHDOG:
175 case WM831X_ON_PIN_CONTROL:
176 case WM831X_RESET_CONTROL:
177 case WM831X_CONTROL_INTERFACE:
178 case WM831X_SECURITY_KEY:
179 case WM831X_SOFTWARE_SCRATCH:
180 case WM831X_OTP_CONTROL:
181 case WM831X_GPIO_LEVEL:
182 case WM831X_SYSTEM_STATUS:
183 case WM831X_ON_SOURCE:
184 case WM831X_OFF_SOURCE:
185 case WM831X_SYSTEM_INTERRUPTS:
186 case WM831X_INTERRUPT_STATUS_1:
187 case WM831X_INTERRUPT_STATUS_2:
188 case WM831X_INTERRUPT_STATUS_3:
189 case WM831X_INTERRUPT_STATUS_4:
190 case WM831X_INTERRUPT_STATUS_5:
191 case WM831X_IRQ_CONFIG:
192 case WM831X_SYSTEM_INTERRUPTS_MASK:
193 case WM831X_INTERRUPT_STATUS_1_MASK:
194 case WM831X_INTERRUPT_STATUS_2_MASK:
195 case WM831X_INTERRUPT_STATUS_3_MASK:
196 case WM831X_INTERRUPT_STATUS_4_MASK:
197 case WM831X_INTERRUPT_STATUS_5_MASK:
198 case WM831X_RTC_WRITE_COUNTER:
199 case WM831X_RTC_TIME_1:
200 case WM831X_RTC_TIME_2:
201 case WM831X_RTC_ALARM_1:
202 case WM831X_RTC_ALARM_2:
203 case WM831X_RTC_CONTROL:
204 case WM831X_RTC_TRIM:
205 case WM831X_TOUCH_CONTROL_1:
206 case WM831X_TOUCH_CONTROL_2:
207 case WM831X_TOUCH_DATA_X:
208 case WM831X_TOUCH_DATA_Y:
209 case WM831X_TOUCH_DATA_Z:
210 case WM831X_AUXADC_DATA:
211 case WM831X_AUXADC_CONTROL:
212 case WM831X_AUXADC_SOURCE:
213 case WM831X_COMPARATOR_CONTROL:
214 case WM831X_COMPARATOR_1:
215 case WM831X_COMPARATOR_2:
216 case WM831X_COMPARATOR_3:
217 case WM831X_COMPARATOR_4:
218 case WM831X_GPIO1_CONTROL:
219 case WM831X_GPIO2_CONTROL:
220 case WM831X_GPIO3_CONTROL:
221 case WM831X_GPIO4_CONTROL:
222 case WM831X_GPIO5_CONTROL:
223 case WM831X_GPIO6_CONTROL:
224 case WM831X_GPIO7_CONTROL:
225 case WM831X_GPIO8_CONTROL:
226 case WM831X_GPIO9_CONTROL:
227 case WM831X_GPIO10_CONTROL:
228 case WM831X_GPIO11_CONTROL:
229 case WM831X_GPIO12_CONTROL:
230 case WM831X_GPIO13_CONTROL:
231 case WM831X_GPIO14_CONTROL:
232 case WM831X_GPIO15_CONTROL:
233 case WM831X_GPIO16_CONTROL:
234 case WM831X_CHARGER_CONTROL_1:
235 case WM831X_CHARGER_CONTROL_2:
236 case WM831X_CHARGER_STATUS:
237 case WM831X_BACKUP_CHARGER_CONTROL:
238 case WM831X_STATUS_LED_1:
239 case WM831X_STATUS_LED_2:
240 case WM831X_CURRENT_SINK_1:
241 case WM831X_CURRENT_SINK_2:
242 case WM831X_DCDC_ENABLE:
243 case WM831X_LDO_ENABLE:
244 case WM831X_DCDC_STATUS:
245 case WM831X_LDO_STATUS:
246 case WM831X_DCDC_UV_STATUS:
247 case WM831X_LDO_UV_STATUS:
248 case WM831X_DC1_CONTROL_1:
249 case WM831X_DC1_CONTROL_2:
250 case WM831X_DC1_ON_CONFIG:
251 case WM831X_DC1_SLEEP_CONTROL:
252 case WM831X_DC1_DVS_CONTROL:
253 case WM831X_DC2_CONTROL_1:
254 case WM831X_DC2_CONTROL_2:
255 case WM831X_DC2_ON_CONFIG:
256 case WM831X_DC2_SLEEP_CONTROL:
257 case WM831X_DC2_DVS_CONTROL:
258 case WM831X_DC3_CONTROL_1:
259 case WM831X_DC3_CONTROL_2:
260 case WM831X_DC3_ON_CONFIG:
261 case WM831X_DC3_SLEEP_CONTROL:
262 case WM831X_DC4_CONTROL:
263 case WM831X_DC4_SLEEP_CONTROL:
264 case WM831X_EPE1_CONTROL:
265 case WM831X_EPE2_CONTROL:
266 case WM831X_LDO1_CONTROL:
267 case WM831X_LDO1_ON_CONTROL:
268 case WM831X_LDO1_SLEEP_CONTROL:
269 case WM831X_LDO2_CONTROL:
270 case WM831X_LDO2_ON_CONTROL:
271 case WM831X_LDO2_SLEEP_CONTROL:
272 case WM831X_LDO3_CONTROL:
273 case WM831X_LDO3_ON_CONTROL:
274 case WM831X_LDO3_SLEEP_CONTROL:
275 case WM831X_LDO4_CONTROL:
276 case WM831X_LDO4_ON_CONTROL:
277 case WM831X_LDO4_SLEEP_CONTROL:
278 case WM831X_LDO5_CONTROL:
279 case WM831X_LDO5_ON_CONTROL:
280 case WM831X_LDO5_SLEEP_CONTROL:
281 case WM831X_LDO6_CONTROL:
282 case WM831X_LDO6_ON_CONTROL:
283 case WM831X_LDO6_SLEEP_CONTROL:
284 case WM831X_LDO7_CONTROL:
285 case WM831X_LDO7_ON_CONTROL:
286 case WM831X_LDO7_SLEEP_CONTROL:
287 case WM831X_LDO8_CONTROL:
288 case WM831X_LDO8_ON_CONTROL:
289 case WM831X_LDO8_SLEEP_CONTROL:
290 case WM831X_LDO9_CONTROL:
291 case WM831X_LDO9_ON_CONTROL:
292 case WM831X_LDO9_SLEEP_CONTROL:
293 case WM831X_LDO10_CONTROL:
294 case WM831X_LDO10_ON_CONTROL:
295 case WM831X_LDO10_SLEEP_CONTROL:
296 case WM831X_LDO11_ON_CONTROL:
297 case WM831X_LDO11_SLEEP_CONTROL:
298 case WM831X_POWER_GOOD_SOURCE_1:
299 case WM831X_POWER_GOOD_SOURCE_2:
300 case WM831X_CLOCK_CONTROL_1:
301 case WM831X_CLOCK_CONTROL_2:
302 case WM831X_FLL_CONTROL_1:
303 case WM831X_FLL_CONTROL_2:
304 case WM831X_FLL_CONTROL_3:
305 case WM831X_FLL_CONTROL_4:
306 case WM831X_FLL_CONTROL_5:
307 case WM831X_UNIQUE_ID_1:
308 case WM831X_UNIQUE_ID_2:
309 case WM831X_UNIQUE_ID_3:
310 case WM831X_UNIQUE_ID_4:
311 case WM831X_UNIQUE_ID_5:
312 case WM831X_UNIQUE_ID_6:
313 case WM831X_UNIQUE_ID_7:
314 case WM831X_UNIQUE_ID_8:
315 case WM831X_FACTORY_OTP_ID:
316 case WM831X_FACTORY_OTP_1:
317 case WM831X_FACTORY_OTP_2:
318 case WM831X_FACTORY_OTP_3:
319 case WM831X_FACTORY_OTP_4:
320 case WM831X_FACTORY_OTP_5:
321 case WM831X_CUSTOMER_OTP_ID:
322 case WM831X_DC1_OTP_CONTROL:
323 case WM831X_DC2_OTP_CONTROL:
324 case WM831X_DC3_OTP_CONTROL:
325 case WM831X_LDO1_2_OTP_CONTROL:
326 case WM831X_LDO3_4_OTP_CONTROL:
327 case WM831X_LDO5_6_OTP_CONTROL:
328 case WM831X_LDO7_8_OTP_CONTROL:
329 case WM831X_LDO9_10_OTP_CONTROL:
330 case WM831X_LDO11_EPE_CONTROL:
331 case WM831X_GPIO1_OTP_CONTROL:
332 case WM831X_GPIO2_OTP_CONTROL:
333 case WM831X_GPIO3_OTP_CONTROL:
334 case WM831X_GPIO4_OTP_CONTROL:
335 case WM831X_GPIO5_OTP_CONTROL:
336 case WM831X_GPIO6_OTP_CONTROL:
337 case WM831X_DBE_CHECK_DATA:
338 return true;
339 default:
340 return false;
341 }
342 }
343
344 static bool wm831x_reg_writeable(struct device *dev, unsigned int reg)
345 {
346 struct wm831x *wm831x = dev_get_drvdata(dev);
347
348 if (wm831x_reg_locked(wm831x, reg))
349 return false;
350
351 switch (reg) {
352 case WM831X_SYSVDD_CONTROL:
353 case WM831X_THERMAL_MONITORING:
354 case WM831X_POWER_STATE:
355 case WM831X_WATCHDOG:
356 case WM831X_ON_PIN_CONTROL:
357 case WM831X_RESET_CONTROL:
358 case WM831X_CONTROL_INTERFACE:
359 case WM831X_SECURITY_KEY:
360 case WM831X_SOFTWARE_SCRATCH:
361 case WM831X_OTP_CONTROL:
362 case WM831X_GPIO_LEVEL:
363 case WM831X_INTERRUPT_STATUS_1:
364 case WM831X_INTERRUPT_STATUS_2:
365 case WM831X_INTERRUPT_STATUS_3:
366 case WM831X_INTERRUPT_STATUS_4:
367 case WM831X_INTERRUPT_STATUS_5:
368 case WM831X_IRQ_CONFIG:
369 case WM831X_SYSTEM_INTERRUPTS_MASK:
370 case WM831X_INTERRUPT_STATUS_1_MASK:
371 case WM831X_INTERRUPT_STATUS_2_MASK:
372 case WM831X_INTERRUPT_STATUS_3_MASK:
373 case WM831X_INTERRUPT_STATUS_4_MASK:
374 case WM831X_INTERRUPT_STATUS_5_MASK:
375 case WM831X_RTC_TIME_1:
376 case WM831X_RTC_TIME_2:
377 case WM831X_RTC_ALARM_1:
378 case WM831X_RTC_ALARM_2:
379 case WM831X_RTC_CONTROL:
380 case WM831X_RTC_TRIM:
381 case WM831X_TOUCH_CONTROL_1:
382 case WM831X_TOUCH_CONTROL_2:
383 case WM831X_AUXADC_CONTROL:
384 case WM831X_AUXADC_SOURCE:
385 case WM831X_COMPARATOR_CONTROL:
386 case WM831X_COMPARATOR_1:
387 case WM831X_COMPARATOR_2:
388 case WM831X_COMPARATOR_3:
389 case WM831X_COMPARATOR_4:
390 case WM831X_GPIO1_CONTROL:
391 case WM831X_GPIO2_CONTROL:
392 case WM831X_GPIO3_CONTROL:
393 case WM831X_GPIO4_CONTROL:
394 case WM831X_GPIO5_CONTROL:
395 case WM831X_GPIO6_CONTROL:
396 case WM831X_GPIO7_CONTROL:
397 case WM831X_GPIO8_CONTROL:
398 case WM831X_GPIO9_CONTROL:
399 case WM831X_GPIO10_CONTROL:
400 case WM831X_GPIO11_CONTROL:
401 case WM831X_GPIO12_CONTROL:
402 case WM831X_GPIO13_CONTROL:
403 case WM831X_GPIO14_CONTROL:
404 case WM831X_GPIO15_CONTROL:
405 case WM831X_GPIO16_CONTROL:
406 case WM831X_CHARGER_CONTROL_1:
407 case WM831X_CHARGER_CONTROL_2:
408 case WM831X_CHARGER_STATUS:
409 case WM831X_BACKUP_CHARGER_CONTROL:
410 case WM831X_STATUS_LED_1:
411 case WM831X_STATUS_LED_2:
412 case WM831X_CURRENT_SINK_1:
413 case WM831X_CURRENT_SINK_2:
414 case WM831X_DCDC_ENABLE:
415 case WM831X_LDO_ENABLE:
416 case WM831X_DC1_CONTROL_1:
417 case WM831X_DC1_CONTROL_2:
418 case WM831X_DC1_ON_CONFIG:
419 case WM831X_DC1_SLEEP_CONTROL:
420 case WM831X_DC1_DVS_CONTROL:
421 case WM831X_DC2_CONTROL_1:
422 case WM831X_DC2_CONTROL_2:
423 case WM831X_DC2_ON_CONFIG:
424 case WM831X_DC2_SLEEP_CONTROL:
425 case WM831X_DC2_DVS_CONTROL:
426 case WM831X_DC3_CONTROL_1:
427 case WM831X_DC3_CONTROL_2:
428 case WM831X_DC3_ON_CONFIG:
429 case WM831X_DC3_SLEEP_CONTROL:
430 case WM831X_DC4_CONTROL:
431 case WM831X_DC4_SLEEP_CONTROL:
432 case WM831X_EPE1_CONTROL:
433 case WM831X_EPE2_CONTROL:
434 case WM831X_LDO1_CONTROL:
435 case WM831X_LDO1_ON_CONTROL:
436 case WM831X_LDO1_SLEEP_CONTROL:
437 case WM831X_LDO2_CONTROL:
438 case WM831X_LDO2_ON_CONTROL:
439 case WM831X_LDO2_SLEEP_CONTROL:
440 case WM831X_LDO3_CONTROL:
441 case WM831X_LDO3_ON_CONTROL:
442 case WM831X_LDO3_SLEEP_CONTROL:
443 case WM831X_LDO4_CONTROL:
444 case WM831X_LDO4_ON_CONTROL:
445 case WM831X_LDO4_SLEEP_CONTROL:
446 case WM831X_LDO5_CONTROL:
447 case WM831X_LDO5_ON_CONTROL:
448 case WM831X_LDO5_SLEEP_CONTROL:
449 case WM831X_LDO6_CONTROL:
450 case WM831X_LDO6_ON_CONTROL:
451 case WM831X_LDO6_SLEEP_CONTROL:
452 case WM831X_LDO7_CONTROL:
453 case WM831X_LDO7_ON_CONTROL:
454 case WM831X_LDO7_SLEEP_CONTROL:
455 case WM831X_LDO8_CONTROL:
456 case WM831X_LDO8_ON_CONTROL:
457 case WM831X_LDO8_SLEEP_CONTROL:
458 case WM831X_LDO9_CONTROL:
459 case WM831X_LDO9_ON_CONTROL:
460 case WM831X_LDO9_SLEEP_CONTROL:
461 case WM831X_LDO10_CONTROL:
462 case WM831X_LDO10_ON_CONTROL:
463 case WM831X_LDO10_SLEEP_CONTROL:
464 case WM831X_LDO11_ON_CONTROL:
465 case WM831X_LDO11_SLEEP_CONTROL:
466 case WM831X_POWER_GOOD_SOURCE_1:
467 case WM831X_POWER_GOOD_SOURCE_2:
468 case WM831X_CLOCK_CONTROL_1:
469 case WM831X_CLOCK_CONTROL_2:
470 case WM831X_FLL_CONTROL_1:
471 case WM831X_FLL_CONTROL_2:
472 case WM831X_FLL_CONTROL_3:
473 case WM831X_FLL_CONTROL_4:
474 case WM831X_FLL_CONTROL_5:
475 return true;
476 default:
477 return false;
478 }
479 }
480
481 static bool wm831x_reg_volatile(struct device *dev, unsigned int reg)
482 {
483 switch (reg) {
484 case WM831X_SYSTEM_STATUS:
485 case WM831X_ON_SOURCE:
486 case WM831X_OFF_SOURCE:
487 case WM831X_GPIO_LEVEL:
488 case WM831X_SYSTEM_INTERRUPTS:
489 case WM831X_INTERRUPT_STATUS_1:
490 case WM831X_INTERRUPT_STATUS_2:
491 case WM831X_INTERRUPT_STATUS_3:
492 case WM831X_INTERRUPT_STATUS_4:
493 case WM831X_INTERRUPT_STATUS_5:
494 case WM831X_RTC_TIME_1:
495 case WM831X_RTC_TIME_2:
496 case WM831X_TOUCH_DATA_X:
497 case WM831X_TOUCH_DATA_Y:
498 case WM831X_TOUCH_DATA_Z:
499 case WM831X_AUXADC_DATA:
500 case WM831X_CHARGER_STATUS:
501 case WM831X_DCDC_STATUS:
502 case WM831X_LDO_STATUS:
503 case WM831X_DCDC_UV_STATUS:
504 case WM831X_LDO_UV_STATUS:
505 return true;
506 default:
507 return false;
508 }
509 }
510
511 /**
512 * wm831x_reg_read: Read a single WM831x register.
513 *
514 * @wm831x: Device to read from.
515 * @reg: Register to read.
516 */
517 int wm831x_reg_read(struct wm831x *wm831x, unsigned short reg)
518 {
519 unsigned int val;
520 int ret;
521
522 ret = regmap_read(wm831x->regmap, reg, &val);
523
524 if (ret < 0)
525 return ret;
526 else
527 return val;
528 }
529 EXPORT_SYMBOL_GPL(wm831x_reg_read);
530
531 /**
532 * wm831x_bulk_read: Read multiple WM831x registers
533 *
534 * @wm831x: Device to read from
535 * @reg: First register
536 * @count: Number of registers
537 * @buf: Buffer to fill.
538 */
539 int wm831x_bulk_read(struct wm831x *wm831x, unsigned short reg,
540 int count, u16 *buf)
541 {
542 return regmap_bulk_read(wm831x->regmap, reg, buf, count);
543 }
544 EXPORT_SYMBOL_GPL(wm831x_bulk_read);
545
546 static int wm831x_write(struct wm831x *wm831x, unsigned short reg,
547 int bytes, void *src)
548 {
549 u16 *buf = src;
550 int i, ret;
551
552 BUG_ON(bytes % 2);
553 BUG_ON(bytes <= 0);
554
555 for (i = 0; i < bytes / 2; i++) {
556 if (wm831x_reg_locked(wm831x, reg))
557 return -EPERM;
558
559 dev_vdbg(wm831x->dev, "Write %04x to R%d(0x%x)\n",
560 buf[i], reg + i, reg + i);
561 ret = regmap_write(wm831x->regmap, reg + i, buf[i]);
562 if (ret != 0)
563 return ret;
564 }
565
566 return 0;
567 }
568
569 /**
570 * wm831x_reg_write: Write a single WM831x register.
571 *
572 * @wm831x: Device to write to.
573 * @reg: Register to write to.
574 * @val: Value to write.
575 */
576 int wm831x_reg_write(struct wm831x *wm831x, unsigned short reg,
577 unsigned short val)
578 {
579 int ret;
580
581 mutex_lock(&wm831x->io_lock);
582
583 ret = wm831x_write(wm831x, reg, 2, &val);
584
585 mutex_unlock(&wm831x->io_lock);
586
587 return ret;
588 }
589 EXPORT_SYMBOL_GPL(wm831x_reg_write);
590
591 /**
592 * wm831x_set_bits: Set the value of a bitfield in a WM831x register
593 *
594 * @wm831x: Device to write to.
595 * @reg: Register to write to.
596 * @mask: Mask of bits to set.
597 * @val: Value to set (unshifted)
598 */
599 int wm831x_set_bits(struct wm831x *wm831x, unsigned short reg,
600 unsigned short mask, unsigned short val)
601 {
602 int ret;
603
604 mutex_lock(&wm831x->io_lock);
605
606 if (!wm831x_reg_locked(wm831x, reg))
607 ret = regmap_update_bits(wm831x->regmap, reg, mask, val);
608 else
609 ret = -EPERM;
610
611 mutex_unlock(&wm831x->io_lock);
612
613 return ret;
614 }
615 EXPORT_SYMBOL_GPL(wm831x_set_bits);
616
617 static struct resource wm831x_dcdc1_resources[] = {
618 {
619 .start = WM831X_DC1_CONTROL_1,
620 .end = WM831X_DC1_DVS_CONTROL,
621 .flags = IORESOURCE_IO,
622 },
623 {
624 .name = "UV",
625 .start = WM831X_IRQ_UV_DC1,
626 .end = WM831X_IRQ_UV_DC1,
627 .flags = IORESOURCE_IRQ,
628 },
629 {
630 .name = "HC",
631 .start = WM831X_IRQ_HC_DC1,
632 .end = WM831X_IRQ_HC_DC1,
633 .flags = IORESOURCE_IRQ,
634 },
635 };
636
637
638 static struct resource wm831x_dcdc2_resources[] = {
639 {
640 .start = WM831X_DC2_CONTROL_1,
641 .end = WM831X_DC2_DVS_CONTROL,
642 .flags = IORESOURCE_IO,
643 },
644 {
645 .name = "UV",
646 .start = WM831X_IRQ_UV_DC2,
647 .end = WM831X_IRQ_UV_DC2,
648 .flags = IORESOURCE_IRQ,
649 },
650 {
651 .name = "HC",
652 .start = WM831X_IRQ_HC_DC2,
653 .end = WM831X_IRQ_HC_DC2,
654 .flags = IORESOURCE_IRQ,
655 },
656 };
657
658 static struct resource wm831x_dcdc3_resources[] = {
659 {
660 .start = WM831X_DC3_CONTROL_1,
661 .end = WM831X_DC3_SLEEP_CONTROL,
662 .flags = IORESOURCE_IO,
663 },
664 {
665 .name = "UV",
666 .start = WM831X_IRQ_UV_DC3,
667 .end = WM831X_IRQ_UV_DC3,
668 .flags = IORESOURCE_IRQ,
669 },
670 };
671
672 static struct resource wm831x_dcdc4_resources[] = {
673 {
674 .start = WM831X_DC4_CONTROL,
675 .end = WM831X_DC4_SLEEP_CONTROL,
676 .flags = IORESOURCE_IO,
677 },
678 {
679 .name = "UV",
680 .start = WM831X_IRQ_UV_DC4,
681 .end = WM831X_IRQ_UV_DC4,
682 .flags = IORESOURCE_IRQ,
683 },
684 };
685
686 static struct resource wm8320_dcdc4_buck_resources[] = {
687 {
688 .start = WM831X_DC4_CONTROL,
689 .end = WM832X_DC4_SLEEP_CONTROL,
690 .flags = IORESOURCE_IO,
691 },
692 {
693 .name = "UV",
694 .start = WM831X_IRQ_UV_DC4,
695 .end = WM831X_IRQ_UV_DC4,
696 .flags = IORESOURCE_IRQ,
697 },
698 };
699
700 static struct resource wm831x_gpio_resources[] = {
701 {
702 .start = WM831X_IRQ_GPIO_1,
703 .end = WM831X_IRQ_GPIO_16,
704 .flags = IORESOURCE_IRQ,
705 },
706 };
707
708 static struct resource wm831x_isink1_resources[] = {
709 {
710 .start = WM831X_CURRENT_SINK_1,
711 .end = WM831X_CURRENT_SINK_1,
712 .flags = IORESOURCE_IO,
713 },
714 {
715 .start = WM831X_IRQ_CS1,
716 .end = WM831X_IRQ_CS1,
717 .flags = IORESOURCE_IRQ,
718 },
719 };
720
721 static struct resource wm831x_isink2_resources[] = {
722 {
723 .start = WM831X_CURRENT_SINK_2,
724 .end = WM831X_CURRENT_SINK_2,
725 .flags = IORESOURCE_IO,
726 },
727 {
728 .start = WM831X_IRQ_CS2,
729 .end = WM831X_IRQ_CS2,
730 .flags = IORESOURCE_IRQ,
731 },
732 };
733
734 static struct resource wm831x_ldo1_resources[] = {
735 {
736 .start = WM831X_LDO1_CONTROL,
737 .end = WM831X_LDO1_SLEEP_CONTROL,
738 .flags = IORESOURCE_IO,
739 },
740 {
741 .name = "UV",
742 .start = WM831X_IRQ_UV_LDO1,
743 .end = WM831X_IRQ_UV_LDO1,
744 .flags = IORESOURCE_IRQ,
745 },
746 };
747
748 static struct resource wm831x_ldo2_resources[] = {
749 {
750 .start = WM831X_LDO2_CONTROL,
751 .end = WM831X_LDO2_SLEEP_CONTROL,
752 .flags = IORESOURCE_IO,
753 },
754 {
755 .name = "UV",
756 .start = WM831X_IRQ_UV_LDO2,
757 .end = WM831X_IRQ_UV_LDO2,
758 .flags = IORESOURCE_IRQ,
759 },
760 };
761
762 static struct resource wm831x_ldo3_resources[] = {
763 {
764 .start = WM831X_LDO3_CONTROL,
765 .end = WM831X_LDO3_SLEEP_CONTROL,
766 .flags = IORESOURCE_IO,
767 },
768 {
769 .name = "UV",
770 .start = WM831X_IRQ_UV_LDO3,
771 .end = WM831X_IRQ_UV_LDO3,
772 .flags = IORESOURCE_IRQ,
773 },
774 };
775
776 static struct resource wm831x_ldo4_resources[] = {
777 {
778 .start = WM831X_LDO4_CONTROL,
779 .end = WM831X_LDO4_SLEEP_CONTROL,
780 .flags = IORESOURCE_IO,
781 },
782 {
783 .name = "UV",
784 .start = WM831X_IRQ_UV_LDO4,
785 .end = WM831X_IRQ_UV_LDO4,
786 .flags = IORESOURCE_IRQ,
787 },
788 };
789
790 static struct resource wm831x_ldo5_resources[] = {
791 {
792 .start = WM831X_LDO5_CONTROL,
793 .end = WM831X_LDO5_SLEEP_CONTROL,
794 .flags = IORESOURCE_IO,
795 },
796 {
797 .name = "UV",
798 .start = WM831X_IRQ_UV_LDO5,
799 .end = WM831X_IRQ_UV_LDO5,
800 .flags = IORESOURCE_IRQ,
801 },
802 };
803
804 static struct resource wm831x_ldo6_resources[] = {
805 {
806 .start = WM831X_LDO6_CONTROL,
807 .end = WM831X_LDO6_SLEEP_CONTROL,
808 .flags = IORESOURCE_IO,
809 },
810 {
811 .name = "UV",
812 .start = WM831X_IRQ_UV_LDO6,
813 .end = WM831X_IRQ_UV_LDO6,
814 .flags = IORESOURCE_IRQ,
815 },
816 };
817
818 static struct resource wm831x_ldo7_resources[] = {
819 {
820 .start = WM831X_LDO7_CONTROL,
821 .end = WM831X_LDO7_SLEEP_CONTROL,
822 .flags = IORESOURCE_IO,
823 },
824 {
825 .name = "UV",
826 .start = WM831X_IRQ_UV_LDO7,
827 .end = WM831X_IRQ_UV_LDO7,
828 .flags = IORESOURCE_IRQ,
829 },
830 };
831
832 static struct resource wm831x_ldo8_resources[] = {
833 {
834 .start = WM831X_LDO8_CONTROL,
835 .end = WM831X_LDO8_SLEEP_CONTROL,
836 .flags = IORESOURCE_IO,
837 },
838 {
839 .name = "UV",
840 .start = WM831X_IRQ_UV_LDO8,
841 .end = WM831X_IRQ_UV_LDO8,
842 .flags = IORESOURCE_IRQ,
843 },
844 };
845
846 static struct resource wm831x_ldo9_resources[] = {
847 {
848 .start = WM831X_LDO9_CONTROL,
849 .end = WM831X_LDO9_SLEEP_CONTROL,
850 .flags = IORESOURCE_IO,
851 },
852 {
853 .name = "UV",
854 .start = WM831X_IRQ_UV_LDO9,
855 .end = WM831X_IRQ_UV_LDO9,
856 .flags = IORESOURCE_IRQ,
857 },
858 };
859
860 static struct resource wm831x_ldo10_resources[] = {
861 {
862 .start = WM831X_LDO10_CONTROL,
863 .end = WM831X_LDO10_SLEEP_CONTROL,
864 .flags = IORESOURCE_IO,
865 },
866 {
867 .name = "UV",
868 .start = WM831X_IRQ_UV_LDO10,
869 .end = WM831X_IRQ_UV_LDO10,
870 .flags = IORESOURCE_IRQ,
871 },
872 };
873
874 static struct resource wm831x_ldo11_resources[] = {
875 {
876 .start = WM831X_LDO11_ON_CONTROL,
877 .end = WM831X_LDO11_SLEEP_CONTROL,
878 .flags = IORESOURCE_IO,
879 },
880 };
881
882 static struct resource wm831x_on_resources[] = {
883 {
884 .start = WM831X_IRQ_ON,
885 .end = WM831X_IRQ_ON,
886 .flags = IORESOURCE_IRQ,
887 },
888 };
889
890
891 static struct resource wm831x_power_resources[] = {
892 {
893 .name = "SYSLO",
894 .start = WM831X_IRQ_PPM_SYSLO,
895 .end = WM831X_IRQ_PPM_SYSLO,
896 .flags = IORESOURCE_IRQ,
897 },
898 {
899 .name = "PWR SRC",
900 .start = WM831X_IRQ_PPM_PWR_SRC,
901 .end = WM831X_IRQ_PPM_PWR_SRC,
902 .flags = IORESOURCE_IRQ,
903 },
904 {
905 .name = "USB CURR",
906 .start = WM831X_IRQ_PPM_USB_CURR,
907 .end = WM831X_IRQ_PPM_USB_CURR,
908 .flags = IORESOURCE_IRQ,
909 },
910 {
911 .name = "BATT HOT",
912 .start = WM831X_IRQ_CHG_BATT_HOT,
913 .end = WM831X_IRQ_CHG_BATT_HOT,
914 .flags = IORESOURCE_IRQ,
915 },
916 {
917 .name = "BATT COLD",
918 .start = WM831X_IRQ_CHG_BATT_COLD,
919 .end = WM831X_IRQ_CHG_BATT_COLD,
920 .flags = IORESOURCE_IRQ,
921 },
922 {
923 .name = "BATT FAIL",
924 .start = WM831X_IRQ_CHG_BATT_FAIL,
925 .end = WM831X_IRQ_CHG_BATT_FAIL,
926 .flags = IORESOURCE_IRQ,
927 },
928 {
929 .name = "OV",
930 .start = WM831X_IRQ_CHG_OV,
931 .end = WM831X_IRQ_CHG_OV,
932 .flags = IORESOURCE_IRQ,
933 },
934 {
935 .name = "END",
936 .start = WM831X_IRQ_CHG_END,
937 .end = WM831X_IRQ_CHG_END,
938 .flags = IORESOURCE_IRQ,
939 },
940 {
941 .name = "TO",
942 .start = WM831X_IRQ_CHG_TO,
943 .end = WM831X_IRQ_CHG_TO,
944 .flags = IORESOURCE_IRQ,
945 },
946 {
947 .name = "MODE",
948 .start = WM831X_IRQ_CHG_MODE,
949 .end = WM831X_IRQ_CHG_MODE,
950 .flags = IORESOURCE_IRQ,
951 },
952 {
953 .name = "START",
954 .start = WM831X_IRQ_CHG_START,
955 .end = WM831X_IRQ_CHG_START,
956 .flags = IORESOURCE_IRQ,
957 },
958 };
959
960 static struct resource wm831x_rtc_resources[] = {
961 {
962 .name = "PER",
963 .start = WM831X_IRQ_RTC_PER,
964 .end = WM831X_IRQ_RTC_PER,
965 .flags = IORESOURCE_IRQ,
966 },
967 {
968 .name = "ALM",
969 .start = WM831X_IRQ_RTC_ALM,
970 .end = WM831X_IRQ_RTC_ALM,
971 .flags = IORESOURCE_IRQ,
972 },
973 };
974
975 static struct resource wm831x_status1_resources[] = {
976 {
977 .start = WM831X_STATUS_LED_1,
978 .end = WM831X_STATUS_LED_1,
979 .flags = IORESOURCE_IO,
980 },
981 };
982
983 static struct resource wm831x_status2_resources[] = {
984 {
985 .start = WM831X_STATUS_LED_2,
986 .end = WM831X_STATUS_LED_2,
987 .flags = IORESOURCE_IO,
988 },
989 };
990
991 static struct resource wm831x_touch_resources[] = {
992 {
993 .name = "TCHPD",
994 .start = WM831X_IRQ_TCHPD,
995 .end = WM831X_IRQ_TCHPD,
996 .flags = IORESOURCE_IRQ,
997 },
998 {
999 .name = "TCHDATA",
1000 .start = WM831X_IRQ_TCHDATA,
1001 .end = WM831X_IRQ_TCHDATA,
1002 .flags = IORESOURCE_IRQ,
1003 },
1004 };
1005
1006 static struct resource wm831x_wdt_resources[] = {
1007 {
1008 .start = WM831X_IRQ_WDOG_TO,
1009 .end = WM831X_IRQ_WDOG_TO,
1010 .flags = IORESOURCE_IRQ,
1011 },
1012 };
1013
1014 static struct mfd_cell wm8310_devs[] = {
1015 {
1016 .name = "wm831x-backup",
1017 },
1018 {
1019 .name = "wm831x-buckv",
1020 .id = 1,
1021 .num_resources = ARRAY_SIZE(wm831x_dcdc1_resources),
1022 .resources = wm831x_dcdc1_resources,
1023 },
1024 {
1025 .name = "wm831x-buckv",
1026 .id = 2,
1027 .num_resources = ARRAY_SIZE(wm831x_dcdc2_resources),
1028 .resources = wm831x_dcdc2_resources,
1029 },
1030 {
1031 .name = "wm831x-buckp",
1032 .id = 3,
1033 .num_resources = ARRAY_SIZE(wm831x_dcdc3_resources),
1034 .resources = wm831x_dcdc3_resources,
1035 },
1036 {
1037 .name = "wm831x-boostp",
1038 .id = 4,
1039 .num_resources = ARRAY_SIZE(wm831x_dcdc4_resources),
1040 .resources = wm831x_dcdc4_resources,
1041 },
1042 {
1043 .name = "wm831x-clk",
1044 },
1045 {
1046 .name = "wm831x-epe",
1047 .id = 1,
1048 },
1049 {
1050 .name = "wm831x-epe",
1051 .id = 2,
1052 },
1053 {
1054 .name = "wm831x-gpio",
1055 .num_resources = ARRAY_SIZE(wm831x_gpio_resources),
1056 .resources = wm831x_gpio_resources,
1057 },
1058 {
1059 .name = "wm831x-hwmon",
1060 },
1061 {
1062 .name = "wm831x-isink",
1063 .id = 1,
1064 .num_resources = ARRAY_SIZE(wm831x_isink1_resources),
1065 .resources = wm831x_isink1_resources,
1066 },
1067 {
1068 .name = "wm831x-isink",
1069 .id = 2,
1070 .num_resources = ARRAY_SIZE(wm831x_isink2_resources),
1071 .resources = wm831x_isink2_resources,
1072 },
1073 {
1074 .name = "wm831x-ldo",
1075 .id = 1,
1076 .num_resources = ARRAY_SIZE(wm831x_ldo1_resources),
1077 .resources = wm831x_ldo1_resources,
1078 },
1079 {
1080 .name = "wm831x-ldo",
1081 .id = 2,
1082 .num_resources = ARRAY_SIZE(wm831x_ldo2_resources),
1083 .resources = wm831x_ldo2_resources,
1084 },
1085 {
1086 .name = "wm831x-ldo",
1087 .id = 3,
1088 .num_resources = ARRAY_SIZE(wm831x_ldo3_resources),
1089 .resources = wm831x_ldo3_resources,
1090 },
1091 {
1092 .name = "wm831x-ldo",
1093 .id = 4,
1094 .num_resources = ARRAY_SIZE(wm831x_ldo4_resources),
1095 .resources = wm831x_ldo4_resources,
1096 },
1097 {
1098 .name = "wm831x-ldo",
1099 .id = 5,
1100 .num_resources = ARRAY_SIZE(wm831x_ldo5_resources),
1101 .resources = wm831x_ldo5_resources,
1102 },
1103 {
1104 .name = "wm831x-ldo",
1105 .id = 6,
1106 .num_resources = ARRAY_SIZE(wm831x_ldo6_resources),
1107 .resources = wm831x_ldo6_resources,
1108 },
1109 {
1110 .name = "wm831x-aldo",
1111 .id = 7,
1112 .num_resources = ARRAY_SIZE(wm831x_ldo7_resources),
1113 .resources = wm831x_ldo7_resources,
1114 },
1115 {
1116 .name = "wm831x-aldo",
1117 .id = 8,
1118 .num_resources = ARRAY_SIZE(wm831x_ldo8_resources),
1119 .resources = wm831x_ldo8_resources,
1120 },
1121 {
1122 .name = "wm831x-aldo",
1123 .id = 9,
1124 .num_resources = ARRAY_SIZE(wm831x_ldo9_resources),
1125 .resources = wm831x_ldo9_resources,
1126 },
1127 {
1128 .name = "wm831x-aldo",
1129 .id = 10,
1130 .num_resources = ARRAY_SIZE(wm831x_ldo10_resources),
1131 .resources = wm831x_ldo10_resources,
1132 },
1133 {
1134 .name = "wm831x-alive-ldo",
1135 .id = 11,
1136 .num_resources = ARRAY_SIZE(wm831x_ldo11_resources),
1137 .resources = wm831x_ldo11_resources,
1138 },
1139 {
1140 .name = "wm831x-on",
1141 .num_resources = ARRAY_SIZE(wm831x_on_resources),
1142 .resources = wm831x_on_resources,
1143 },
1144 {
1145 .name = "wm831x-power",
1146 .num_resources = ARRAY_SIZE(wm831x_power_resources),
1147 .resources = wm831x_power_resources,
1148 },
1149 {
1150 .name = "wm831x-status",
1151 .id = 1,
1152 .num_resources = ARRAY_SIZE(wm831x_status1_resources),
1153 .resources = wm831x_status1_resources,
1154 },
1155 {
1156 .name = "wm831x-status",
1157 .id = 2,
1158 .num_resources = ARRAY_SIZE(wm831x_status2_resources),
1159 .resources = wm831x_status2_resources,
1160 },
1161 {
1162 .name = "wm831x-watchdog",
1163 .num_resources = ARRAY_SIZE(wm831x_wdt_resources),
1164 .resources = wm831x_wdt_resources,
1165 },
1166 };
1167
1168 static struct mfd_cell wm8311_devs[] = {
1169 {
1170 .name = "wm831x-backup",
1171 },
1172 {
1173 .name = "wm831x-buckv",
1174 .id = 1,
1175 .num_resources = ARRAY_SIZE(wm831x_dcdc1_resources),
1176 .resources = wm831x_dcdc1_resources,
1177 },
1178 {
1179 .name = "wm831x-buckv",
1180 .id = 2,
1181 .num_resources = ARRAY_SIZE(wm831x_dcdc2_resources),
1182 .resources = wm831x_dcdc2_resources,
1183 },
1184 {
1185 .name = "wm831x-buckp",
1186 .id = 3,
1187 .num_resources = ARRAY_SIZE(wm831x_dcdc3_resources),
1188 .resources = wm831x_dcdc3_resources,
1189 },
1190 {
1191 .name = "wm831x-boostp",
1192 .id = 4,
1193 .num_resources = ARRAY_SIZE(wm831x_dcdc4_resources),
1194 .resources = wm831x_dcdc4_resources,
1195 },
1196 {
1197 .name = "wm831x-clk",
1198 },
1199 {
1200 .name = "wm831x-epe",
1201 .id = 1,
1202 },
1203 {
1204 .name = "wm831x-epe",
1205 .id = 2,
1206 },
1207 {
1208 .name = "wm831x-gpio",
1209 .num_resources = ARRAY_SIZE(wm831x_gpio_resources),
1210 .resources = wm831x_gpio_resources,
1211 },
1212 {
1213 .name = "wm831x-hwmon",
1214 },
1215 {
1216 .name = "wm831x-isink",
1217 .id = 1,
1218 .num_resources = ARRAY_SIZE(wm831x_isink1_resources),
1219 .resources = wm831x_isink1_resources,
1220 },
1221 {
1222 .name = "wm831x-isink",
1223 .id = 2,
1224 .num_resources = ARRAY_SIZE(wm831x_isink2_resources),
1225 .resources = wm831x_isink2_resources,
1226 },
1227 {
1228 .name = "wm831x-ldo",
1229 .id = 1,
1230 .num_resources = ARRAY_SIZE(wm831x_ldo1_resources),
1231 .resources = wm831x_ldo1_resources,
1232 },
1233 {
1234 .name = "wm831x-ldo",
1235 .id = 2,
1236 .num_resources = ARRAY_SIZE(wm831x_ldo2_resources),
1237 .resources = wm831x_ldo2_resources,
1238 },
1239 {
1240 .name = "wm831x-ldo",
1241 .id = 3,
1242 .num_resources = ARRAY_SIZE(wm831x_ldo3_resources),
1243 .resources = wm831x_ldo3_resources,
1244 },
1245 {
1246 .name = "wm831x-ldo",
1247 .id = 4,
1248 .num_resources = ARRAY_SIZE(wm831x_ldo4_resources),
1249 .resources = wm831x_ldo4_resources,
1250 },
1251 {
1252 .name = "wm831x-ldo",
1253 .id = 5,
1254 .num_resources = ARRAY_SIZE(wm831x_ldo5_resources),
1255 .resources = wm831x_ldo5_resources,
1256 },
1257 {
1258 .name = "wm831x-aldo",
1259 .id = 7,
1260 .num_resources = ARRAY_SIZE(wm831x_ldo7_resources),
1261 .resources = wm831x_ldo7_resources,
1262 },
1263 {
1264 .name = "wm831x-alive-ldo",
1265 .id = 11,
1266 .num_resources = ARRAY_SIZE(wm831x_ldo11_resources),
1267 .resources = wm831x_ldo11_resources,
1268 },
1269 {
1270 .name = "wm831x-on",
1271 .num_resources = ARRAY_SIZE(wm831x_on_resources),
1272 .resources = wm831x_on_resources,
1273 },
1274 {
1275 .name = "wm831x-power",
1276 .num_resources = ARRAY_SIZE(wm831x_power_resources),
1277 .resources = wm831x_power_resources,
1278 },
1279 {
1280 .name = "wm831x-status",
1281 .id = 1,
1282 .num_resources = ARRAY_SIZE(wm831x_status1_resources),
1283 .resources = wm831x_status1_resources,
1284 },
1285 {
1286 .name = "wm831x-status",
1287 .id = 2,
1288 .num_resources = ARRAY_SIZE(wm831x_status2_resources),
1289 .resources = wm831x_status2_resources,
1290 },
1291 {
1292 .name = "wm831x-watchdog",
1293 .num_resources = ARRAY_SIZE(wm831x_wdt_resources),
1294 .resources = wm831x_wdt_resources,
1295 },
1296 };
1297
1298 static struct mfd_cell wm8312_devs[] = {
1299 {
1300 .name = "wm831x-backup",
1301 },
1302 {
1303 .name = "wm831x-buckv",
1304 .id = 1,
1305 .num_resources = ARRAY_SIZE(wm831x_dcdc1_resources),
1306 .resources = wm831x_dcdc1_resources,
1307 },
1308 {
1309 .name = "wm831x-buckv",
1310 .id = 2,
1311 .num_resources = ARRAY_SIZE(wm831x_dcdc2_resources),
1312 .resources = wm831x_dcdc2_resources,
1313 },
1314 {
1315 .name = "wm831x-buckp",
1316 .id = 3,
1317 .num_resources = ARRAY_SIZE(wm831x_dcdc3_resources),
1318 .resources = wm831x_dcdc3_resources,
1319 },
1320 {
1321 .name = "wm831x-boostp",
1322 .id = 4,
1323 .num_resources = ARRAY_SIZE(wm831x_dcdc4_resources),
1324 .resources = wm831x_dcdc4_resources,
1325 },
1326 {
1327 .name = "wm831x-clk",
1328 },
1329 {
1330 .name = "wm831x-epe",
1331 .id = 1,
1332 },
1333 {
1334 .name = "wm831x-epe",
1335 .id = 2,
1336 },
1337 {
1338 .name = "wm831x-gpio",
1339 .num_resources = ARRAY_SIZE(wm831x_gpio_resources),
1340 .resources = wm831x_gpio_resources,
1341 },
1342 {
1343 .name = "wm831x-hwmon",
1344 },
1345 {
1346 .name = "wm831x-isink",
1347 .id = 1,
1348 .num_resources = ARRAY_SIZE(wm831x_isink1_resources),
1349 .resources = wm831x_isink1_resources,
1350 },
1351 {
1352 .name = "wm831x-isink",
1353 .id = 2,
1354 .num_resources = ARRAY_SIZE(wm831x_isink2_resources),
1355 .resources = wm831x_isink2_resources,
1356 },
1357 {
1358 .name = "wm831x-ldo",
1359 .id = 1,
1360 .num_resources = ARRAY_SIZE(wm831x_ldo1_resources),
1361 .resources = wm831x_ldo1_resources,
1362 },
1363 {
1364 .name = "wm831x-ldo",
1365 .id = 2,
1366 .num_resources = ARRAY_SIZE(wm831x_ldo2_resources),
1367 .resources = wm831x_ldo2_resources,
1368 },
1369 {
1370 .name = "wm831x-ldo",
1371 .id = 3,
1372 .num_resources = ARRAY_SIZE(wm831x_ldo3_resources),
1373 .resources = wm831x_ldo3_resources,
1374 },
1375 {
1376 .name = "wm831x-ldo",
1377 .id = 4,
1378 .num_resources = ARRAY_SIZE(wm831x_ldo4_resources),
1379 .resources = wm831x_ldo4_resources,
1380 },
1381 {
1382 .name = "wm831x-ldo",
1383 .id = 5,
1384 .num_resources = ARRAY_SIZE(wm831x_ldo5_resources),
1385 .resources = wm831x_ldo5_resources,
1386 },
1387 {
1388 .name = "wm831x-ldo",
1389 .id = 6,
1390 .num_resources = ARRAY_SIZE(wm831x_ldo6_resources),
1391 .resources = wm831x_ldo6_resources,
1392 },
1393 {
1394 .name = "wm831x-aldo",
1395 .id = 7,
1396 .num_resources = ARRAY_SIZE(wm831x_ldo7_resources),
1397 .resources = wm831x_ldo7_resources,
1398 },
1399 {
1400 .name = "wm831x-aldo",
1401 .id = 8,
1402 .num_resources = ARRAY_SIZE(wm831x_ldo8_resources),
1403 .resources = wm831x_ldo8_resources,
1404 },
1405 {
1406 .name = "wm831x-aldo",
1407 .id = 9,
1408 .num_resources = ARRAY_SIZE(wm831x_ldo9_resources),
1409 .resources = wm831x_ldo9_resources,
1410 },
1411 {
1412 .name = "wm831x-aldo",
1413 .id = 10,
1414 .num_resources = ARRAY_SIZE(wm831x_ldo10_resources),
1415 .resources = wm831x_ldo10_resources,
1416 },
1417 {
1418 .name = "wm831x-alive-ldo",
1419 .id = 11,
1420 .num_resources = ARRAY_SIZE(wm831x_ldo11_resources),
1421 .resources = wm831x_ldo11_resources,
1422 },
1423 {
1424 .name = "wm831x-on",
1425 .num_resources = ARRAY_SIZE(wm831x_on_resources),
1426 .resources = wm831x_on_resources,
1427 },
1428 {
1429 .name = "wm831x-power",
1430 .num_resources = ARRAY_SIZE(wm831x_power_resources),
1431 .resources = wm831x_power_resources,
1432 },
1433 {
1434 .name = "wm831x-status",
1435 .id = 1,
1436 .num_resources = ARRAY_SIZE(wm831x_status1_resources),
1437 .resources = wm831x_status1_resources,
1438 },
1439 {
1440 .name = "wm831x-status",
1441 .id = 2,
1442 .num_resources = ARRAY_SIZE(wm831x_status2_resources),
1443 .resources = wm831x_status2_resources,
1444 },
1445 {
1446 .name = "wm831x-watchdog",
1447 .num_resources = ARRAY_SIZE(wm831x_wdt_resources),
1448 .resources = wm831x_wdt_resources,
1449 },
1450 };
1451
1452 static struct mfd_cell wm8320_devs[] = {
1453 {
1454 .name = "wm831x-backup",
1455 },
1456 {
1457 .name = "wm831x-buckv",
1458 .id = 1,
1459 .num_resources = ARRAY_SIZE(wm831x_dcdc1_resources),
1460 .resources = wm831x_dcdc1_resources,
1461 },
1462 {
1463 .name = "wm831x-buckv",
1464 .id = 2,
1465 .num_resources = ARRAY_SIZE(wm831x_dcdc2_resources),
1466 .resources = wm831x_dcdc2_resources,
1467 },
1468 {
1469 .name = "wm831x-buckp",
1470 .id = 3,
1471 .num_resources = ARRAY_SIZE(wm831x_dcdc3_resources),
1472 .resources = wm831x_dcdc3_resources,
1473 },
1474 {
1475 .name = "wm831x-buckp",
1476 .id = 4,
1477 .num_resources = ARRAY_SIZE(wm8320_dcdc4_buck_resources),
1478 .resources = wm8320_dcdc4_buck_resources,
1479 },
1480 {
1481 .name = "wm831x-clk",
1482 },
1483 {
1484 .name = "wm831x-gpio",
1485 .num_resources = ARRAY_SIZE(wm831x_gpio_resources),
1486 .resources = wm831x_gpio_resources,
1487 },
1488 {
1489 .name = "wm831x-hwmon",
1490 },
1491 {
1492 .name = "wm831x-ldo",
1493 .id = 1,
1494 .num_resources = ARRAY_SIZE(wm831x_ldo1_resources),
1495 .resources = wm831x_ldo1_resources,
1496 },
1497 {
1498 .name = "wm831x-ldo",
1499 .id = 2,
1500 .num_resources = ARRAY_SIZE(wm831x_ldo2_resources),
1501 .resources = wm831x_ldo2_resources,
1502 },
1503 {
1504 .name = "wm831x-ldo",
1505 .id = 3,
1506 .num_resources = ARRAY_SIZE(wm831x_ldo3_resources),
1507 .resources = wm831x_ldo3_resources,
1508 },
1509 {
1510 .name = "wm831x-ldo",
1511 .id = 4,
1512 .num_resources = ARRAY_SIZE(wm831x_ldo4_resources),
1513 .resources = wm831x_ldo4_resources,
1514 },
1515 {
1516 .name = "wm831x-ldo",
1517 .id = 5,
1518 .num_resources = ARRAY_SIZE(wm831x_ldo5_resources),
1519 .resources = wm831x_ldo5_resources,
1520 },
1521 {
1522 .name = "wm831x-ldo",
1523 .id = 6,
1524 .num_resources = ARRAY_SIZE(wm831x_ldo6_resources),
1525 .resources = wm831x_ldo6_resources,
1526 },
1527 {
1528 .name = "wm831x-aldo",
1529 .id = 7,
1530 .num_resources = ARRAY_SIZE(wm831x_ldo7_resources),
1531 .resources = wm831x_ldo7_resources,
1532 },
1533 {
1534 .name = "wm831x-aldo",
1535 .id = 8,
1536 .num_resources = ARRAY_SIZE(wm831x_ldo8_resources),
1537 .resources = wm831x_ldo8_resources,
1538 },
1539 {
1540 .name = "wm831x-aldo",
1541 .id = 9,
1542 .num_resources = ARRAY_SIZE(wm831x_ldo9_resources),
1543 .resources = wm831x_ldo9_resources,
1544 },
1545 {
1546 .name = "wm831x-aldo",
1547 .id = 10,
1548 .num_resources = ARRAY_SIZE(wm831x_ldo10_resources),
1549 .resources = wm831x_ldo10_resources,
1550 },
1551 {
1552 .name = "wm831x-alive-ldo",
1553 .id = 11,
1554 .num_resources = ARRAY_SIZE(wm831x_ldo11_resources),
1555 .resources = wm831x_ldo11_resources,
1556 },
1557 {
1558 .name = "wm831x-on",
1559 .num_resources = ARRAY_SIZE(wm831x_on_resources),
1560 .resources = wm831x_on_resources,
1561 },
1562 {
1563 .name = "wm831x-status",
1564 .id = 1,
1565 .num_resources = ARRAY_SIZE(wm831x_status1_resources),
1566 .resources = wm831x_status1_resources,
1567 },
1568 {
1569 .name = "wm831x-status",
1570 .id = 2,
1571 .num_resources = ARRAY_SIZE(wm831x_status2_resources),
1572 .resources = wm831x_status2_resources,
1573 },
1574 {
1575 .name = "wm831x-watchdog",
1576 .num_resources = ARRAY_SIZE(wm831x_wdt_resources),
1577 .resources = wm831x_wdt_resources,
1578 },
1579 };
1580
1581 static struct mfd_cell touch_devs[] = {
1582 {
1583 .name = "wm831x-touch",
1584 .num_resources = ARRAY_SIZE(wm831x_touch_resources),
1585 .resources = wm831x_touch_resources,
1586 },
1587 };
1588
1589 static struct mfd_cell rtc_devs[] = {
1590 {
1591 .name = "wm831x-rtc",
1592 .num_resources = ARRAY_SIZE(wm831x_rtc_resources),
1593 .resources = wm831x_rtc_resources,
1594 },
1595 };
1596
1597 static struct mfd_cell backlight_devs[] = {
1598 {
1599 .name = "wm831x-backlight",
1600 },
1601 };
1602
1603 struct regmap_config wm831x_regmap_config = {
1604 .reg_bits = 16,
1605 .val_bits = 16,
1606
1607 .cache_type = REGCACHE_RBTREE,
1608
1609 .max_register = WM831X_DBE_CHECK_DATA,
1610 .readable_reg = wm831x_reg_readable,
1611 .writeable_reg = wm831x_reg_writeable,
1612 .volatile_reg = wm831x_reg_volatile,
1613 };
1614 EXPORT_SYMBOL_GPL(wm831x_regmap_config);
1615
1616 /*
1617 * Instantiate the generic non-control parts of the device.
1618 */
1619 int wm831x_device_init(struct wm831x *wm831x, unsigned long id, int irq)
1620 {
1621 struct wm831x_pdata *pdata = wm831x->dev->platform_data;
1622 int rev, wm831x_num;
1623 enum wm831x_parent parent;
1624 int ret, i;
1625
1626 mutex_init(&wm831x->io_lock);
1627 mutex_init(&wm831x->key_lock);
1628 dev_set_drvdata(wm831x->dev, wm831x);
1629 wm831x->soft_shutdown = pdata->soft_shutdown;
1630
1631 ret = wm831x_reg_read(wm831x, WM831X_PARENT_ID);
1632 if (ret < 0) {
1633 dev_err(wm831x->dev, "Failed to read parent ID: %d\n", ret);
1634 goto err_regmap;
1635 }
1636 switch (ret) {
1637 case 0x6204:
1638 case 0x6246:
1639 break;
1640 default:
1641 dev_err(wm831x->dev, "Device is not a WM831x: ID %x\n", ret);
1642 ret = -EINVAL;
1643 goto err_regmap;
1644 }
1645
1646 ret = wm831x_reg_read(wm831x, WM831X_REVISION);
1647 if (ret < 0) {
1648 dev_err(wm831x->dev, "Failed to read revision: %d\n", ret);
1649 goto err_regmap;
1650 }
1651 rev = (ret & WM831X_PARENT_REV_MASK) >> WM831X_PARENT_REV_SHIFT;
1652
1653 ret = wm831x_reg_read(wm831x, WM831X_RESET_ID);
1654 if (ret < 0) {
1655 dev_err(wm831x->dev, "Failed to read device ID: %d\n", ret);
1656 goto err_regmap;
1657 }
1658
1659 /* Some engineering samples do not have the ID set, rely on
1660 * the device being registered correctly.
1661 */
1662 if (ret == 0) {
1663 dev_info(wm831x->dev, "Device is an engineering sample\n");
1664 ret = id;
1665 }
1666
1667 switch (ret) {
1668 case WM8310:
1669 parent = WM8310;
1670 wm831x->num_gpio = 16;
1671 wm831x->charger_irq_wake = 1;
1672 if (rev > 0) {
1673 wm831x->has_gpio_ena = 1;
1674 wm831x->has_cs_sts = 1;
1675 }
1676
1677 dev_info(wm831x->dev, "WM8310 revision %c\n", 'A' + rev);
1678 break;
1679
1680 case WM8311:
1681 parent = WM8311;
1682 wm831x->num_gpio = 16;
1683 wm831x->charger_irq_wake = 1;
1684 if (rev > 0) {
1685 wm831x->has_gpio_ena = 1;
1686 wm831x->has_cs_sts = 1;
1687 }
1688
1689 dev_info(wm831x->dev, "WM8311 revision %c\n", 'A' + rev);
1690 break;
1691
1692 case WM8312:
1693 parent = WM8312;
1694 wm831x->num_gpio = 16;
1695 wm831x->charger_irq_wake = 1;
1696 if (rev > 0) {
1697 wm831x->has_gpio_ena = 1;
1698 wm831x->has_cs_sts = 1;
1699 }
1700
1701 dev_info(wm831x->dev, "WM8312 revision %c\n", 'A' + rev);
1702 break;
1703
1704 case WM8320:
1705 parent = WM8320;
1706 wm831x->num_gpio = 12;
1707 dev_info(wm831x->dev, "WM8320 revision %c\n", 'A' + rev);
1708 break;
1709
1710 case WM8321:
1711 parent = WM8321;
1712 wm831x->num_gpio = 12;
1713 dev_info(wm831x->dev, "WM8321 revision %c\n", 'A' + rev);
1714 break;
1715
1716 case WM8325:
1717 parent = WM8325;
1718 wm831x->num_gpio = 12;
1719 dev_info(wm831x->dev, "WM8325 revision %c\n", 'A' + rev);
1720 break;
1721
1722 case WM8326:
1723 parent = WM8326;
1724 wm831x->num_gpio = 12;
1725 dev_info(wm831x->dev, "WM8326 revision %c\n", 'A' + rev);
1726 break;
1727
1728 default:
1729 dev_err(wm831x->dev, "Unknown WM831x device %04x\n", ret);
1730 ret = -EINVAL;
1731 goto err_regmap;
1732 }
1733
1734 /* This will need revisiting in future but is OK for all
1735 * current parts.
1736 */
1737 if (parent != id)
1738 dev_warn(wm831x->dev, "Device was registered as a WM%lx\n",
1739 id);
1740
1741 /* Bootstrap the user key */
1742 ret = wm831x_reg_read(wm831x, WM831X_SECURITY_KEY);
1743 if (ret < 0) {
1744 dev_err(wm831x->dev, "Failed to read security key: %d\n", ret);
1745 goto err_regmap;
1746 }
1747 if (ret != 0) {
1748 dev_warn(wm831x->dev, "Security key had non-zero value %x\n",
1749 ret);
1750 wm831x_reg_write(wm831x, WM831X_SECURITY_KEY, 0);
1751 }
1752 wm831x->locked = 1;
1753
1754 if (pdata && pdata->pre_init) {
1755 ret = pdata->pre_init(wm831x);
1756 if (ret != 0) {
1757 dev_err(wm831x->dev, "pre_init() failed: %d\n", ret);
1758 goto err_regmap;
1759 }
1760 }
1761
1762 if (pdata) {
1763 for (i = 0; i < ARRAY_SIZE(pdata->gpio_defaults); i++) {
1764 if (!pdata->gpio_defaults[i])
1765 continue;
1766
1767 wm831x_reg_write(wm831x,
1768 WM831X_GPIO1_CONTROL + i,
1769 pdata->gpio_defaults[i] & 0xffff);
1770 }
1771 }
1772
1773 /* Multiply by 10 as we have many subdevices of the same type */
1774 if (pdata && pdata->wm831x_num)
1775 wm831x_num = pdata->wm831x_num * 10;
1776 else
1777 wm831x_num = -1;
1778
1779 ret = wm831x_irq_init(wm831x, irq);
1780 if (ret != 0)
1781 goto err_regmap;
1782
1783 wm831x_auxadc_init(wm831x);
1784
1785 /* The core device is up, instantiate the subdevices. */
1786 switch (parent) {
1787 case WM8310:
1788 ret = mfd_add_devices(wm831x->dev, wm831x_num,
1789 wm8310_devs, ARRAY_SIZE(wm8310_devs),
1790 NULL, wm831x->irq_base);
1791 break;
1792
1793 case WM8311:
1794 ret = mfd_add_devices(wm831x->dev, wm831x_num,
1795 wm8311_devs, ARRAY_SIZE(wm8311_devs),
1796 NULL, wm831x->irq_base);
1797 if (!pdata || !pdata->disable_touch)
1798 mfd_add_devices(wm831x->dev, wm831x_num,
1799 touch_devs, ARRAY_SIZE(touch_devs),
1800 NULL, wm831x->irq_base);
1801 break;
1802
1803 case WM8312:
1804 ret = mfd_add_devices(wm831x->dev, wm831x_num,
1805 wm8312_devs, ARRAY_SIZE(wm8312_devs),
1806 NULL, wm831x->irq_base);
1807 if (!pdata || !pdata->disable_touch)
1808 mfd_add_devices(wm831x->dev, wm831x_num,
1809 touch_devs, ARRAY_SIZE(touch_devs),
1810 NULL, wm831x->irq_base);
1811 break;
1812
1813 case WM8320:
1814 case WM8321:
1815 case WM8325:
1816 case WM8326:
1817 ret = mfd_add_devices(wm831x->dev, wm831x_num,
1818 wm8320_devs, ARRAY_SIZE(wm8320_devs),
1819 NULL, wm831x->irq_base);
1820 break;
1821
1822 default:
1823 /* If this happens the bus probe function is buggy */
1824 BUG();
1825 }
1826
1827 if (ret != 0) {
1828 dev_err(wm831x->dev, "Failed to add children\n");
1829 goto err_irq;
1830 }
1831
1832 /* The RTC can only be used if the 32.768kHz crystal is
1833 * enabled; this can't be controlled by software at runtime.
1834 */
1835 ret = wm831x_reg_read(wm831x, WM831X_CLOCK_CONTROL_2);
1836 if (ret < 0) {
1837 dev_err(wm831x->dev, "Failed to read clock status: %d\n", ret);
1838 goto err_irq;
1839 }
1840
1841 if (ret & WM831X_XTAL_ENA) {
1842 ret = mfd_add_devices(wm831x->dev, wm831x_num,
1843 rtc_devs, ARRAY_SIZE(rtc_devs),
1844 NULL, wm831x->irq_base);
1845 if (ret != 0) {
1846 dev_err(wm831x->dev, "Failed to add RTC: %d\n", ret);
1847 goto err_irq;
1848 }
1849 } else {
1850 dev_info(wm831x->dev, "32.768kHz clock disabled, no RTC\n");
1851 }
1852
1853 if (pdata && pdata->backlight) {
1854 /* Treat errors as non-critical */
1855 ret = mfd_add_devices(wm831x->dev, wm831x_num, backlight_devs,
1856 ARRAY_SIZE(backlight_devs), NULL,
1857 wm831x->irq_base);
1858 if (ret < 0)
1859 dev_err(wm831x->dev, "Failed to add backlight: %d\n",
1860 ret);
1861 }
1862
1863 wm831x_otp_init(wm831x);
1864
1865 if (pdata && pdata->post_init) {
1866 ret = pdata->post_init(wm831x);
1867 if (ret != 0) {
1868 dev_err(wm831x->dev, "post_init() failed: %d\n", ret);
1869 goto err_irq;
1870 }
1871 }
1872
1873 return 0;
1874
1875 err_irq:
1876 wm831x_irq_exit(wm831x);
1877 err_regmap:
1878 mfd_remove_devices(wm831x->dev);
1879 regmap_exit(wm831x->regmap);
1880 return ret;
1881 }
1882
1883 void wm831x_device_exit(struct wm831x *wm831x)
1884 {
1885 wm831x_otp_exit(wm831x);
1886 mfd_remove_devices(wm831x->dev);
1887 if (wm831x->irq_base)
1888 free_irq(wm831x->irq_base + WM831X_IRQ_AUXADC_DATA, wm831x);
1889 wm831x_irq_exit(wm831x);
1890 regmap_exit(wm831x->regmap);
1891 }
1892
1893 int wm831x_device_suspend(struct wm831x *wm831x)
1894 {
1895 int reg, mask;
1896
1897 /* If the charger IRQs are a wake source then make sure we ack
1898 * them even if they're not actively being used (eg, no power
1899 * driver or no IRQ line wired up) then acknowledge the
1900 * interrupts otherwise suspend won't last very long.
1901 */
1902 if (wm831x->charger_irq_wake) {
1903 reg = wm831x_reg_read(wm831x, WM831X_INTERRUPT_STATUS_2_MASK);
1904
1905 mask = WM831X_CHG_BATT_HOT_EINT |
1906 WM831X_CHG_BATT_COLD_EINT |
1907 WM831X_CHG_BATT_FAIL_EINT |
1908 WM831X_CHG_OV_EINT | WM831X_CHG_END_EINT |
1909 WM831X_CHG_TO_EINT | WM831X_CHG_MODE_EINT |
1910 WM831X_CHG_START_EINT;
1911
1912 /* If any of the interrupts are masked read the statuses */
1913 if (reg & mask)
1914 reg = wm831x_reg_read(wm831x,
1915 WM831X_INTERRUPT_STATUS_2);
1916
1917 if (reg & mask) {
1918 dev_info(wm831x->dev,
1919 "Acknowledging masked charger IRQs: %x\n",
1920 reg & mask);
1921 wm831x_reg_write(wm831x, WM831X_INTERRUPT_STATUS_2,
1922 reg & mask);
1923 }
1924 }
1925
1926 return 0;
1927 }
1928
1929 void wm831x_device_shutdown(struct wm831x *wm831x)
1930 {
1931 if (wm831x->soft_shutdown) {
1932 dev_info(wm831x->dev, "Initiating shutdown...\n");
1933 wm831x_set_bits(wm831x, WM831X_POWER_STATE, WM831X_CHIP_ON, 0);
1934 }
1935 }
1936 EXPORT_SYMBOL_GPL(wm831x_device_shutdown);
1937
1938 MODULE_DESCRIPTION("Core support for the WM831X AudioPlus PMIC");
1939 MODULE_LICENSE("GPL");
1940 MODULE_AUTHOR("Mark Brown");