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Merge remote-tracking branch 'regmap/for-next'
[linux-2.6/next.git] / drivers / mfd / wm831x-core.c
blob9338f8dcbb83581661793936fceb1a794efff0f2
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/regulator.h>
29
30 /* Current settings - values are 2*2^(reg_val/4) microamps. These are
31 * exported since they are used by multiple drivers.
32 */
33 int wm831x_isinkv_values[WM831X_ISINK_MAX_ISEL + 1] = {
34 2,
35 2,
36 3,
37 3,
38 4,
39 5,
40 6,
41 7,
42 8,
43 10,
44 11,
45 13,
46 16,
47 19,
48 23,
49 27,
50 32,
51 38,
52 45,
53 54,
54 64,
55 76,
56 91,
57 108,
58 128,
59 152,
60 181,
61 215,
62 256,
63 304,
64 362,
65 431,
66 512,
67 609,
68 724,
69 861,
70 1024,
71 1218,
72 1448,
73 1722,
74 2048,
75 2435,
76 2896,
77 3444,
78 4096,
79 4871,
80 5793,
81 6889,
82 8192,
83 9742,
84 11585,
85 13777,
86 16384,
87 19484,
88 23170,
89 27554,
90 };
91 EXPORT_SYMBOL_GPL(wm831x_isinkv_values);
92
93 static int wm831x_reg_locked(struct wm831x *wm831x, unsigned short reg)
94 {
95 if (!wm831x->locked)
96 return 0;
97
98 switch (reg) {
99 case WM831X_WATCHDOG:
100 case WM831X_DC4_CONTROL:
101 case WM831X_ON_PIN_CONTROL:
102 case WM831X_BACKUP_CHARGER_CONTROL:
103 case WM831X_CHARGER_CONTROL_1:
104 case WM831X_CHARGER_CONTROL_2:
105 return 1;
106
107 default:
108 return 0;
109 }
110 }
111
112 /**
113 * wm831x_reg_unlock: Unlock user keyed registers
114 *
115 * The WM831x has a user key preventing writes to particularly
116 * critical registers. This function locks those registers,
117 * allowing writes to them.
118 */
119 void 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 }
136 EXPORT_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 int wm831x_reg_unlock(struct wm831x *wm831x)
146 {
147 int ret;
148
149 /* 0x9716 is the value required to unlock the registers */
150 ret = wm831x_reg_write(wm831x, WM831X_SECURITY_KEY, 0x9716);
151 if (ret == 0) {
152 dev_vdbg(wm831x->dev, "Registers unlocked\n");
153
154 mutex_lock(&wm831x->io_lock);
155 WARN_ON(!wm831x->locked);
156 wm831x->locked = 0;
157 mutex_unlock(&wm831x->io_lock);
158 }
159
160 return ret;
161 }
162 EXPORT_SYMBOL_GPL(wm831x_reg_unlock);
163
164 static bool wm831x_reg_readable(struct device *dev, unsigned int reg)
165 {
166 switch (reg) {
167 case WM831X_RESET_ID:
168 case WM831X_REVISION:
169 case WM831X_PARENT_ID:
170 case WM831X_SYSVDD_CONTROL:
171 case WM831X_THERMAL_MONITORING:
172 case WM831X_POWER_STATE:
173 case WM831X_WATCHDOG:
174 case WM831X_ON_PIN_CONTROL:
175 case WM831X_RESET_CONTROL:
176 case WM831X_CONTROL_INTERFACE:
177 case WM831X_SECURITY_KEY:
178 case WM831X_SOFTWARE_SCRATCH:
179 case WM831X_OTP_CONTROL:
180 case WM831X_GPIO_LEVEL:
181 case WM831X_SYSTEM_STATUS:
182 case WM831X_ON_SOURCE:
183 case WM831X_OFF_SOURCE:
184 case WM831X_SYSTEM_INTERRUPTS:
185 case WM831X_INTERRUPT_STATUS_1:
186 case WM831X_INTERRUPT_STATUS_2:
187 case WM831X_INTERRUPT_STATUS_3:
188 case WM831X_INTERRUPT_STATUS_4:
189 case WM831X_INTERRUPT_STATUS_5:
190 case WM831X_IRQ_CONFIG:
191 case WM831X_SYSTEM_INTERRUPTS_MASK:
192 case WM831X_INTERRUPT_STATUS_1_MASK:
193 case WM831X_INTERRUPT_STATUS_2_MASK:
194 case WM831X_INTERRUPT_STATUS_3_MASK:
195 case WM831X_INTERRUPT_STATUS_4_MASK:
196 case WM831X_INTERRUPT_STATUS_5_MASK:
197 case WM831X_RTC_WRITE_COUNTER:
198 case WM831X_RTC_TIME_1:
199 case WM831X_RTC_TIME_2:
200 case WM831X_RTC_ALARM_1:
201 case WM831X_RTC_ALARM_2:
202 case WM831X_RTC_CONTROL:
203 case WM831X_RTC_TRIM:
204 case WM831X_TOUCH_CONTROL_1:
205 case WM831X_TOUCH_CONTROL_2:
206 case WM831X_TOUCH_DATA_X:
207 case WM831X_TOUCH_DATA_Y:
208 case WM831X_TOUCH_DATA_Z:
209 case WM831X_AUXADC_DATA:
210 case WM831X_AUXADC_CONTROL:
211 case WM831X_AUXADC_SOURCE:
212 case WM831X_COMPARATOR_CONTROL:
213 case WM831X_COMPARATOR_1:
214 case WM831X_COMPARATOR_2:
215 case WM831X_COMPARATOR_3:
216 case WM831X_COMPARATOR_4:
217 case WM831X_GPIO1_CONTROL:
218 case WM831X_GPIO2_CONTROL:
219 case WM831X_GPIO3_CONTROL:
220 case WM831X_GPIO4_CONTROL:
221 case WM831X_GPIO5_CONTROL:
222 case WM831X_GPIO6_CONTROL:
223 case WM831X_GPIO7_CONTROL:
224 case WM831X_GPIO8_CONTROL:
225 case WM831X_GPIO9_CONTROL:
226 case WM831X_GPIO10_CONTROL:
227 case WM831X_GPIO11_CONTROL:
228 case WM831X_GPIO12_CONTROL:
229 case WM831X_GPIO13_CONTROL:
230 case WM831X_GPIO14_CONTROL:
231 case WM831X_GPIO15_CONTROL:
232 case WM831X_GPIO16_CONTROL:
233 case WM831X_CHARGER_CONTROL_1:
234 case WM831X_CHARGER_CONTROL_2:
235 case WM831X_CHARGER_STATUS:
236 case WM831X_BACKUP_CHARGER_CONTROL:
237 case WM831X_STATUS_LED_1:
238 case WM831X_STATUS_LED_2:
239 case WM831X_CURRENT_SINK_1:
240 case WM831X_CURRENT_SINK_2:
241 case WM831X_DCDC_ENABLE:
242 case WM831X_LDO_ENABLE:
243 case WM831X_DCDC_STATUS:
244 case WM831X_LDO_STATUS:
245 case WM831X_DCDC_UV_STATUS:
246 case WM831X_LDO_UV_STATUS:
247 case WM831X_DC1_CONTROL_1:
248 case WM831X_DC1_CONTROL_2:
249 case WM831X_DC1_ON_CONFIG:
250 case WM831X_DC1_SLEEP_CONTROL:
251 case WM831X_DC1_DVS_CONTROL:
252 case WM831X_DC2_CONTROL_1:
253 case WM831X_DC2_CONTROL_2:
254 case WM831X_DC2_ON_CONFIG:
255 case WM831X_DC2_SLEEP_CONTROL:
256 case WM831X_DC2_DVS_CONTROL:
257 case WM831X_DC3_CONTROL_1:
258 case WM831X_DC3_CONTROL_2:
259 case WM831X_DC3_ON_CONFIG:
260 case WM831X_DC3_SLEEP_CONTROL:
261 case WM831X_DC4_CONTROL:
262 case WM831X_DC4_SLEEP_CONTROL:
263 case WM831X_EPE1_CONTROL:
264 case WM831X_EPE2_CONTROL:
265 case WM831X_LDO1_CONTROL:
266 case WM831X_LDO1_ON_CONTROL:
267 case WM831X_LDO1_SLEEP_CONTROL:
268 case WM831X_LDO2_CONTROL:
269 case WM831X_LDO2_ON_CONTROL:
270 case WM831X_LDO2_SLEEP_CONTROL:
271 case WM831X_LDO3_CONTROL:
272 case WM831X_LDO3_ON_CONTROL:
273 case WM831X_LDO3_SLEEP_CONTROL:
274 case WM831X_LDO4_CONTROL:
275 case WM831X_LDO4_ON_CONTROL:
276 case WM831X_LDO4_SLEEP_CONTROL:
277 case WM831X_LDO5_CONTROL:
278 case WM831X_LDO5_ON_CONTROL:
279 case WM831X_LDO5_SLEEP_CONTROL:
280 case WM831X_LDO6_CONTROL:
281 case WM831X_LDO6_ON_CONTROL:
282 case WM831X_LDO6_SLEEP_CONTROL:
283 case WM831X_LDO7_CONTROL:
284 case WM831X_LDO7_ON_CONTROL:
285 case WM831X_LDO7_SLEEP_CONTROL:
286 case WM831X_LDO8_CONTROL:
287 case WM831X_LDO8_ON_CONTROL:
288 case WM831X_LDO8_SLEEP_CONTROL:
289 case WM831X_LDO9_CONTROL:
290 case WM831X_LDO9_ON_CONTROL:
291 case WM831X_LDO9_SLEEP_CONTROL:
292 case WM831X_LDO10_CONTROL:
293 case WM831X_LDO10_ON_CONTROL:
294 case WM831X_LDO10_SLEEP_CONTROL:
295 case WM831X_LDO11_ON_CONTROL:
296 case WM831X_LDO11_SLEEP_CONTROL:
297 case WM831X_POWER_GOOD_SOURCE_1:
298 case WM831X_POWER_GOOD_SOURCE_2:
299 case WM831X_CLOCK_CONTROL_1:
300 case WM831X_CLOCK_CONTROL_2:
301 case WM831X_FLL_CONTROL_1:
302 case WM831X_FLL_CONTROL_2:
303 case WM831X_FLL_CONTROL_3:
304 case WM831X_FLL_CONTROL_4:
305 case WM831X_FLL_CONTROL_5:
306 case WM831X_UNIQUE_ID_1:
307 case WM831X_UNIQUE_ID_2:
308 case WM831X_UNIQUE_ID_3:
309 case WM831X_UNIQUE_ID_4:
310 case WM831X_UNIQUE_ID_5:
311 case WM831X_UNIQUE_ID_6:
312 case WM831X_UNIQUE_ID_7:
313 case WM831X_UNIQUE_ID_8:
314 case WM831X_FACTORY_OTP_ID:
315 case WM831X_FACTORY_OTP_1:
316 case WM831X_FACTORY_OTP_2:
317 case WM831X_FACTORY_OTP_3:
318 case WM831X_FACTORY_OTP_4:
319 case WM831X_FACTORY_OTP_5:
320 case WM831X_CUSTOMER_OTP_ID:
321 case WM831X_DC1_OTP_CONTROL:
322 case WM831X_DC2_OTP_CONTROL:
323 case WM831X_DC3_OTP_CONTROL:
324 case WM831X_LDO1_2_OTP_CONTROL:
325 case WM831X_LDO3_4_OTP_CONTROL:
326 case WM831X_LDO5_6_OTP_CONTROL:
327 case WM831X_LDO7_8_OTP_CONTROL:
328 case WM831X_LDO9_10_OTP_CONTROL:
329 case WM831X_LDO11_EPE_CONTROL:
330 case WM831X_GPIO1_OTP_CONTROL:
331 case WM831X_GPIO2_OTP_CONTROL:
332 case WM831X_GPIO3_OTP_CONTROL:
333 case WM831X_GPIO4_OTP_CONTROL:
334 case WM831X_GPIO5_OTP_CONTROL:
335 case WM831X_GPIO6_OTP_CONTROL:
336 case WM831X_DBE_CHECK_DATA:
337 return true;
338 default:
339 return false;
340 }
341 }
342
343 static bool wm831x_reg_writeable(struct device *dev, unsigned int reg)
344 {
345 struct wm831x *wm831x = dev_get_drvdata(dev);
346
347 if (wm831x_reg_locked(wm831x, reg))
348 return false;
349
350 switch (reg) {
351 case WM831X_SYSVDD_CONTROL:
352 case WM831X_THERMAL_MONITORING:
353 case WM831X_POWER_STATE:
354 case WM831X_WATCHDOG:
355 case WM831X_ON_PIN_CONTROL:
356 case WM831X_RESET_CONTROL:
357 case WM831X_CONTROL_INTERFACE:
358 case WM831X_SECURITY_KEY:
359 case WM831X_SOFTWARE_SCRATCH:
360 case WM831X_OTP_CONTROL:
361 case WM831X_GPIO_LEVEL:
362 case WM831X_INTERRUPT_STATUS_1:
363 case WM831X_INTERRUPT_STATUS_2:
364 case WM831X_INTERRUPT_STATUS_3:
365 case WM831X_INTERRUPT_STATUS_4:
366 case WM831X_INTERRUPT_STATUS_5:
367 case WM831X_IRQ_CONFIG:
368 case WM831X_SYSTEM_INTERRUPTS_MASK:
369 case WM831X_INTERRUPT_STATUS_1_MASK:
370 case WM831X_INTERRUPT_STATUS_2_MASK:
371 case WM831X_INTERRUPT_STATUS_3_MASK:
372 case WM831X_INTERRUPT_STATUS_4_MASK:
373 case WM831X_INTERRUPT_STATUS_5_MASK:
374 case WM831X_RTC_TIME_1:
375 case WM831X_RTC_TIME_2:
376 case WM831X_RTC_ALARM_1:
377 case WM831X_RTC_ALARM_2:
378 case WM831X_RTC_CONTROL:
379 case WM831X_RTC_TRIM:
380 case WM831X_TOUCH_CONTROL_1:
381 case WM831X_TOUCH_CONTROL_2:
382 case WM831X_AUXADC_CONTROL:
383 case WM831X_AUXADC_SOURCE:
384 case WM831X_COMPARATOR_CONTROL:
385 case WM831X_COMPARATOR_1:
386 case WM831X_COMPARATOR_2:
387 case WM831X_COMPARATOR_3:
388 case WM831X_COMPARATOR_4:
389 case WM831X_GPIO1_CONTROL:
390 case WM831X_GPIO2_CONTROL:
391 case WM831X_GPIO3_CONTROL:
392 case WM831X_GPIO4_CONTROL:
393 case WM831X_GPIO5_CONTROL:
394 case WM831X_GPIO6_CONTROL:
395 case WM831X_GPIO7_CONTROL:
396 case WM831X_GPIO8_CONTROL:
397 case WM831X_GPIO9_CONTROL:
398 case WM831X_GPIO10_CONTROL:
399 case WM831X_GPIO11_CONTROL:
400 case WM831X_GPIO12_CONTROL:
401 case WM831X_GPIO13_CONTROL:
402 case WM831X_GPIO14_CONTROL:
403 case WM831X_GPIO15_CONTROL:
404 case WM831X_GPIO16_CONTROL:
405 case WM831X_CHARGER_CONTROL_1:
406 case WM831X_CHARGER_CONTROL_2:
407 case WM831X_CHARGER_STATUS:
408 case WM831X_BACKUP_CHARGER_CONTROL:
409 case WM831X_STATUS_LED_1:
410 case WM831X_STATUS_LED_2:
411 case WM831X_CURRENT_SINK_1:
412 case WM831X_CURRENT_SINK_2:
413 case WM831X_DCDC_ENABLE:
414 case WM831X_LDO_ENABLE:
415 case WM831X_DC1_CONTROL_1:
416 case WM831X_DC1_CONTROL_2:
417 case WM831X_DC1_ON_CONFIG:
418 case WM831X_DC1_SLEEP_CONTROL:
419 case WM831X_DC1_DVS_CONTROL:
420 case WM831X_DC2_CONTROL_1:
421 case WM831X_DC2_CONTROL_2:
422 case WM831X_DC2_ON_CONFIG:
423 case WM831X_DC2_SLEEP_CONTROL:
424 case WM831X_DC2_DVS_CONTROL:
425 case WM831X_DC3_CONTROL_1:
426 case WM831X_DC3_CONTROL_2:
427 case WM831X_DC3_ON_CONFIG:
428 case WM831X_DC3_SLEEP_CONTROL:
429 case WM831X_DC4_CONTROL:
430 case WM831X_DC4_SLEEP_CONTROL:
431 case WM831X_EPE1_CONTROL:
432 case WM831X_EPE2_CONTROL:
433 case WM831X_LDO1_CONTROL:
434 case WM831X_LDO1_ON_CONTROL:
435 case WM831X_LDO1_SLEEP_CONTROL:
436 case WM831X_LDO2_CONTROL:
437 case WM831X_LDO2_ON_CONTROL:
438 case WM831X_LDO2_SLEEP_CONTROL:
439 case WM831X_LDO3_CONTROL:
440 case WM831X_LDO3_ON_CONTROL:
441 case WM831X_LDO3_SLEEP_CONTROL:
442 case WM831X_LDO4_CONTROL:
443 case WM831X_LDO4_ON_CONTROL:
444 case WM831X_LDO4_SLEEP_CONTROL:
445 case WM831X_LDO5_CONTROL:
446 case WM831X_LDO5_ON_CONTROL:
447 case WM831X_LDO5_SLEEP_CONTROL:
448 case WM831X_LDO6_CONTROL:
449 case WM831X_LDO6_ON_CONTROL:
450 case WM831X_LDO6_SLEEP_CONTROL:
451 case WM831X_LDO7_CONTROL:
452 case WM831X_LDO7_ON_CONTROL:
453 case WM831X_LDO7_SLEEP_CONTROL:
454 case WM831X_LDO8_CONTROL:
455 case WM831X_LDO8_ON_CONTROL:
456 case WM831X_LDO8_SLEEP_CONTROL:
457 case WM831X_LDO9_CONTROL:
458 case WM831X_LDO9_ON_CONTROL:
459 case WM831X_LDO9_SLEEP_CONTROL:
460 case WM831X_LDO10_CONTROL:
461 case WM831X_LDO10_ON_CONTROL:
462 case WM831X_LDO10_SLEEP_CONTROL:
463 case WM831X_LDO11_ON_CONTROL:
464 case WM831X_LDO11_SLEEP_CONTROL:
465 case WM831X_POWER_GOOD_SOURCE_1:
466 case WM831X_POWER_GOOD_SOURCE_2:
467 case WM831X_CLOCK_CONTROL_1:
468 case WM831X_CLOCK_CONTROL_2:
469 case WM831X_FLL_CONTROL_1:
470 case WM831X_FLL_CONTROL_2:
471 case WM831X_FLL_CONTROL_3:
472 case WM831X_FLL_CONTROL_4:
473 case WM831X_FLL_CONTROL_5:
474 return true;
475 default:
476 return false;
477 }
478 }
479
480 static bool wm831x_reg_volatile(struct device *dev, unsigned int reg)
481 {
482 switch (reg) {
483 case WM831X_SYSTEM_STATUS:
484 case WM831X_ON_SOURCE:
485 case WM831X_OFF_SOURCE:
486 case WM831X_GPIO_LEVEL:
487 case WM831X_SYSTEM_INTERRUPTS:
488 case WM831X_INTERRUPT_STATUS_1:
489 case WM831X_INTERRUPT_STATUS_2:
490 case WM831X_INTERRUPT_STATUS_3:
491 case WM831X_INTERRUPT_STATUS_4:
492 case WM831X_INTERRUPT_STATUS_5:
493 case WM831X_RTC_TIME_1:
494 case WM831X_RTC_TIME_2:
495 case WM831X_TOUCH_DATA_X:
496 case WM831X_TOUCH_DATA_Y:
497 case WM831X_TOUCH_DATA_Z:
498 case WM831X_AUXADC_DATA:
499 case WM831X_CHARGER_STATUS:
500 case WM831X_DCDC_STATUS:
501 case WM831X_LDO_STATUS:
502 case WM831X_DCDC_UV_STATUS:
503 case WM831X_LDO_UV_STATUS:
504 return true;
505 default:
506 return false;
507 }
508 }
509
510 /**
511 * wm831x_reg_read: Read a single WM831x register.
512 *
513 * @wm831x: Device to read from.
514 * @reg: Register to read.
515 */
516 int wm831x_reg_read(struct wm831x *wm831x, unsigned short reg)
517 {
518 unsigned int val;
519 int ret;
520
521 ret = regmap_read(wm831x->regmap, reg, &val);
522
523 if (ret < 0)
524 return ret;
525 else
526 return val;
527 }
528 EXPORT_SYMBOL_GPL(wm831x_reg_read);
529
530 /**
531 * wm831x_bulk_read: Read multiple WM831x registers
532 *
533 * @wm831x: Device to read from
534 * @reg: First register
535 * @count: Number of registers
536 * @buf: Buffer to fill.
537 */
538 int wm831x_bulk_read(struct wm831x *wm831x, unsigned short reg,
539 int count, u16 *buf)
540 {
541 return regmap_bulk_read(wm831x->regmap, reg, buf, count);
542 }
543 EXPORT_SYMBOL_GPL(wm831x_bulk_read);
544
545 static int wm831x_write(struct wm831x *wm831x, unsigned short reg,
546 int bytes, void *src)
547 {
548 u16 *buf = src;
549 int i, ret;
550
551 BUG_ON(bytes % 2);
552 BUG_ON(bytes <= 0);
553
554 for (i = 0; i < bytes / 2; i++) {
555 if (wm831x_reg_locked(wm831x, reg))
556 return -EPERM;
557
558 dev_vdbg(wm831x->dev, "Write %04x to R%d(0x%x)\n",
559 buf[i], reg + i, reg + i);
560 ret = regmap_write(wm831x->regmap, reg + i, buf[i]);
561 }
562
563 return 0;
564 }
565
566 /**
567 * wm831x_reg_write: Write a single WM831x register.
568 *
569 * @wm831x: Device to write to.
570 * @reg: Register to write to.
571 * @val: Value to write.
572 */
573 int wm831x_reg_write(struct wm831x *wm831x, unsigned short reg,
574 unsigned short val)
575 {
576 int ret;
577
578 mutex_lock(&wm831x->io_lock);
579
580 ret = wm831x_write(wm831x, reg, 2, &val);
581
582 mutex_unlock(&wm831x->io_lock);
583
584 return ret;
585 }
586 EXPORT_SYMBOL_GPL(wm831x_reg_write);
587
588 /**
589 * wm831x_set_bits: Set the value of a bitfield in a WM831x register
590 *
591 * @wm831x: Device to write to.
592 * @reg: Register to write to.
593 * @mask: Mask of bits to set.
594 * @val: Value to set (unshifted)
595 */
596 int wm831x_set_bits(struct wm831x *wm831x, unsigned short reg,
597 unsigned short mask, unsigned short val)
598 {
599 int ret;
600
601 mutex_lock(&wm831x->io_lock);
602
603 if (!wm831x_reg_locked(wm831x, reg))
604 ret = regmap_update_bits(wm831x->regmap, reg, mask, val);
605 else
606 ret = -EPERM;
607
608 mutex_unlock(&wm831x->io_lock);
609
610 return ret;
611 }
612 EXPORT_SYMBOL_GPL(wm831x_set_bits);
613
614 static struct resource wm831x_dcdc1_resources[] = {
615 {
616 .start = WM831X_DC1_CONTROL_1,
617 .end = WM831X_DC1_DVS_CONTROL,
618 .flags = IORESOURCE_IO,
619 },
620 {
621 .name = "UV",
622 .start = WM831X_IRQ_UV_DC1,
623 .end = WM831X_IRQ_UV_DC1,
624 .flags = IORESOURCE_IRQ,
625 },
626 {
627 .name = "HC",
628 .start = WM831X_IRQ_HC_DC1,
629 .end = WM831X_IRQ_HC_DC1,
630 .flags = IORESOURCE_IRQ,
631 },
632 };
633
634
635 static struct resource wm831x_dcdc2_resources[] = {
636 {
637 .start = WM831X_DC2_CONTROL_1,
638 .end = WM831X_DC2_DVS_CONTROL,
639 .flags = IORESOURCE_IO,
640 },
641 {
642 .name = "UV",
643 .start = WM831X_IRQ_UV_DC2,
644 .end = WM831X_IRQ_UV_DC2,
645 .flags = IORESOURCE_IRQ,
646 },
647 {
648 .name = "HC",
649 .start = WM831X_IRQ_HC_DC2,
650 .end = WM831X_IRQ_HC_DC2,
651 .flags = IORESOURCE_IRQ,
652 },
653 };
654
655 static struct resource wm831x_dcdc3_resources[] = {
656 {
657 .start = WM831X_DC3_CONTROL_1,
658 .end = WM831X_DC3_SLEEP_CONTROL,
659 .flags = IORESOURCE_IO,
660 },
661 {
662 .name = "UV",
663 .start = WM831X_IRQ_UV_DC3,
664 .end = WM831X_IRQ_UV_DC3,
665 .flags = IORESOURCE_IRQ,
666 },
667 };
668
669 static struct resource wm831x_dcdc4_resources[] = {
670 {
671 .start = WM831X_DC4_CONTROL,
672 .end = WM831X_DC4_SLEEP_CONTROL,
673 .flags = IORESOURCE_IO,
674 },
675 {
676 .name = "UV",
677 .start = WM831X_IRQ_UV_DC4,
678 .end = WM831X_IRQ_UV_DC4,
679 .flags = IORESOURCE_IRQ,
680 },
681 };
682
683 static struct resource wm8320_dcdc4_buck_resources[] = {
684 {
685 .start = WM831X_DC4_CONTROL,
686 .end = WM832X_DC4_SLEEP_CONTROL,
687 .flags = IORESOURCE_IO,
688 },
689 {
690 .name = "UV",
691 .start = WM831X_IRQ_UV_DC4,
692 .end = WM831X_IRQ_UV_DC4,
693 .flags = IORESOURCE_IRQ,
694 },
695 };
696
697 static struct resource wm831x_gpio_resources[] = {
698 {
699 .start = WM831X_IRQ_GPIO_1,
700 .end = WM831X_IRQ_GPIO_16,
701 .flags = IORESOURCE_IRQ,
702 },
703 };
704
705 static struct resource wm831x_isink1_resources[] = {
706 {
707 .start = WM831X_CURRENT_SINK_1,
708 .end = WM831X_CURRENT_SINK_1,
709 .flags = IORESOURCE_IO,
710 },
711 {
712 .start = WM831X_IRQ_CS1,
713 .end = WM831X_IRQ_CS1,
714 .flags = IORESOURCE_IRQ,
715 },
716 };
717
718 static struct resource wm831x_isink2_resources[] = {
719 {
720 .start = WM831X_CURRENT_SINK_2,
721 .end = WM831X_CURRENT_SINK_2,
722 .flags = IORESOURCE_IO,
723 },
724 {
725 .start = WM831X_IRQ_CS2,
726 .end = WM831X_IRQ_CS2,
727 .flags = IORESOURCE_IRQ,
728 },
729 };
730
731 static struct resource wm831x_ldo1_resources[] = {
732 {
733 .start = WM831X_LDO1_CONTROL,
734 .end = WM831X_LDO1_SLEEP_CONTROL,
735 .flags = IORESOURCE_IO,
736 },
737 {
738 .name = "UV",
739 .start = WM831X_IRQ_UV_LDO1,
740 .end = WM831X_IRQ_UV_LDO1,
741 .flags = IORESOURCE_IRQ,
742 },
743 };
744
745 static struct resource wm831x_ldo2_resources[] = {
746 {
747 .start = WM831X_LDO2_CONTROL,
748 .end = WM831X_LDO2_SLEEP_CONTROL,
749 .flags = IORESOURCE_IO,
750 },
751 {
752 .name = "UV",
753 .start = WM831X_IRQ_UV_LDO2,
754 .end = WM831X_IRQ_UV_LDO2,
755 .flags = IORESOURCE_IRQ,
756 },
757 };
758
759 static struct resource wm831x_ldo3_resources[] = {
760 {
761 .start = WM831X_LDO3_CONTROL,
762 .end = WM831X_LDO3_SLEEP_CONTROL,
763 .flags = IORESOURCE_IO,
764 },
765 {
766 .name = "UV",
767 .start = WM831X_IRQ_UV_LDO3,
768 .end = WM831X_IRQ_UV_LDO3,
769 .flags = IORESOURCE_IRQ,
770 },
771 };
772
773 static struct resource wm831x_ldo4_resources[] = {
774 {
775 .start = WM831X_LDO4_CONTROL,
776 .end = WM831X_LDO4_SLEEP_CONTROL,
777 .flags = IORESOURCE_IO,
778 },
779 {
780 .name = "UV",
781 .start = WM831X_IRQ_UV_LDO4,
782 .end = WM831X_IRQ_UV_LDO4,
783 .flags = IORESOURCE_IRQ,
784 },
785 };
786
787 static struct resource wm831x_ldo5_resources[] = {
788 {
789 .start = WM831X_LDO5_CONTROL,
790 .end = WM831X_LDO5_SLEEP_CONTROL,
791 .flags = IORESOURCE_IO,
792 },
793 {
794 .name = "UV",
795 .start = WM831X_IRQ_UV_LDO5,
796 .end = WM831X_IRQ_UV_LDO5,
797 .flags = IORESOURCE_IRQ,
798 },
799 };
800
801 static struct resource wm831x_ldo6_resources[] = {
802 {
803 .start = WM831X_LDO6_CONTROL,
804 .end = WM831X_LDO6_SLEEP_CONTROL,
805 .flags = IORESOURCE_IO,
806 },
807 {
808 .name = "UV",
809 .start = WM831X_IRQ_UV_LDO6,
810 .end = WM831X_IRQ_UV_LDO6,
811 .flags = IORESOURCE_IRQ,
812 },
813 };
814
815 static struct resource wm831x_ldo7_resources[] = {
816 {
817 .start = WM831X_LDO7_CONTROL,
818 .end = WM831X_LDO7_SLEEP_CONTROL,
819 .flags = IORESOURCE_IO,
820 },
821 {
822 .name = "UV",
823 .start = WM831X_IRQ_UV_LDO7,
824 .end = WM831X_IRQ_UV_LDO7,
825 .flags = IORESOURCE_IRQ,
826 },
827 };
828
829 static struct resource wm831x_ldo8_resources[] = {
830 {
831 .start = WM831X_LDO8_CONTROL,
832 .end = WM831X_LDO8_SLEEP_CONTROL,
833 .flags = IORESOURCE_IO,
834 },
835 {
836 .name = "UV",
837 .start = WM831X_IRQ_UV_LDO8,
838 .end = WM831X_IRQ_UV_LDO8,
839 .flags = IORESOURCE_IRQ,
840 },
841 };
842
843 static struct resource wm831x_ldo9_resources[] = {
844 {
845 .start = WM831X_LDO9_CONTROL,
846 .end = WM831X_LDO9_SLEEP_CONTROL,
847 .flags = IORESOURCE_IO,
848 },
849 {
850 .name = "UV",
851 .start = WM831X_IRQ_UV_LDO9,
852 .end = WM831X_IRQ_UV_LDO9,
853 .flags = IORESOURCE_IRQ,
854 },
855 };
856
857 static struct resource wm831x_ldo10_resources[] = {
858 {
859 .start = WM831X_LDO10_CONTROL,
860 .end = WM831X_LDO10_SLEEP_CONTROL,
861 .flags = IORESOURCE_IO,
862 },
863 {
864 .name = "UV",
865 .start = WM831X_IRQ_UV_LDO10,
866 .end = WM831X_IRQ_UV_LDO10,
867 .flags = IORESOURCE_IRQ,
868 },
869 };
870
871 static struct resource wm831x_ldo11_resources[] = {
872 {
873 .start = WM831X_LDO11_ON_CONTROL,
874 .end = WM831X_LDO11_SLEEP_CONTROL,
875 .flags = IORESOURCE_IO,
876 },
877 };
878
879 static struct resource wm831x_on_resources[] = {
880 {
881 .start = WM831X_IRQ_ON,
882 .end = WM831X_IRQ_ON,
883 .flags = IORESOURCE_IRQ,
884 },
885 };
886
887
888 static struct resource wm831x_power_resources[] = {
889 {
890 .name = "SYSLO",
891 .start = WM831X_IRQ_PPM_SYSLO,
892 .end = WM831X_IRQ_PPM_SYSLO,
893 .flags = IORESOURCE_IRQ,
894 },
895 {
896 .name = "PWR SRC",
897 .start = WM831X_IRQ_PPM_PWR_SRC,
898 .end = WM831X_IRQ_PPM_PWR_SRC,
899 .flags = IORESOURCE_IRQ,
900 },
901 {
902 .name = "USB CURR",
903 .start = WM831X_IRQ_PPM_USB_CURR,
904 .end = WM831X_IRQ_PPM_USB_CURR,
905 .flags = IORESOURCE_IRQ,
906 },
907 {
908 .name = "BATT HOT",
909 .start = WM831X_IRQ_CHG_BATT_HOT,
910 .end = WM831X_IRQ_CHG_BATT_HOT,
911 .flags = IORESOURCE_IRQ,
912 },
913 {
914 .name = "BATT COLD",
915 .start = WM831X_IRQ_CHG_BATT_COLD,
916 .end = WM831X_IRQ_CHG_BATT_COLD,
917 .flags = IORESOURCE_IRQ,
918 },
919 {
920 .name = "BATT FAIL",
921 .start = WM831X_IRQ_CHG_BATT_FAIL,
922 .end = WM831X_IRQ_CHG_BATT_FAIL,
923 .flags = IORESOURCE_IRQ,
924 },
925 {
926 .name = "OV",
927 .start = WM831X_IRQ_CHG_OV,
928 .end = WM831X_IRQ_CHG_OV,
929 .flags = IORESOURCE_IRQ,
930 },
931 {
932 .name = "END",
933 .start = WM831X_IRQ_CHG_END,
934 .end = WM831X_IRQ_CHG_END,
935 .flags = IORESOURCE_IRQ,
936 },
937 {
938 .name = "TO",
939 .start = WM831X_IRQ_CHG_TO,
940 .end = WM831X_IRQ_CHG_TO,
941 .flags = IORESOURCE_IRQ,
942 },
943 {
944 .name = "MODE",
945 .start = WM831X_IRQ_CHG_MODE,
946 .end = WM831X_IRQ_CHG_MODE,
947 .flags = IORESOURCE_IRQ,
948 },
949 {
950 .name = "START",
951 .start = WM831X_IRQ_CHG_START,
952 .end = WM831X_IRQ_CHG_START,
953 .flags = IORESOURCE_IRQ,
954 },
955 };
956
957 static struct resource wm831x_rtc_resources[] = {
958 {
959 .name = "PER",
960 .start = WM831X_IRQ_RTC_PER,
961 .end = WM831X_IRQ_RTC_PER,
962 .flags = IORESOURCE_IRQ,
963 },
964 {
965 .name = "ALM",
966 .start = WM831X_IRQ_RTC_ALM,
967 .end = WM831X_IRQ_RTC_ALM,
968 .flags = IORESOURCE_IRQ,
969 },
970 };
971
972 static struct resource wm831x_status1_resources[] = {
973 {
974 .start = WM831X_STATUS_LED_1,
975 .end = WM831X_STATUS_LED_1,
976 .flags = IORESOURCE_IO,
977 },
978 };
979
980 static struct resource wm831x_status2_resources[] = {
981 {
982 .start = WM831X_STATUS_LED_2,
983 .end = WM831X_STATUS_LED_2,
984 .flags = IORESOURCE_IO,
985 },
986 };
987
988 static struct resource wm831x_touch_resources[] = {
989 {
990 .name = "TCHPD",
991 .start = WM831X_IRQ_TCHPD,
992 .end = WM831X_IRQ_TCHPD,
993 .flags = IORESOURCE_IRQ,
994 },
995 {
996 .name = "TCHDATA",
997 .start = WM831X_IRQ_TCHDATA,
998 .end = WM831X_IRQ_TCHDATA,
999 .flags = IORESOURCE_IRQ,
1000 },
1001 };
1002
1003 static struct resource wm831x_wdt_resources[] = {
1004 {
1005 .start = WM831X_IRQ_WDOG_TO,
1006 .end = WM831X_IRQ_WDOG_TO,
1007 .flags = IORESOURCE_IRQ,
1008 },
1009 };
1010
1011 static struct mfd_cell wm8310_devs[] = {
1012 {
1013 .name = "wm831x-backup",
1014 },
1015 {
1016 .name = "wm831x-buckv",
1017 .id = 1,
1018 .num_resources = ARRAY_SIZE(wm831x_dcdc1_resources),
1019 .resources = wm831x_dcdc1_resources,
1020 },
1021 {
1022 .name = "wm831x-buckv",
1023 .id = 2,
1024 .num_resources = ARRAY_SIZE(wm831x_dcdc2_resources),
1025 .resources = wm831x_dcdc2_resources,
1026 },
1027 {
1028 .name = "wm831x-buckp",
1029 .id = 3,
1030 .num_resources = ARRAY_SIZE(wm831x_dcdc3_resources),
1031 .resources = wm831x_dcdc3_resources,
1032 },
1033 {
1034 .name = "wm831x-boostp",
1035 .id = 4,
1036 .num_resources = ARRAY_SIZE(wm831x_dcdc4_resources),
1037 .resources = wm831x_dcdc4_resources,
1038 },
1039 {
1040 .name = "wm831x-clk",
1041 },
1042 {
1043 .name = "wm831x-epe",
1044 .id = 1,
1045 },
1046 {
1047 .name = "wm831x-epe",
1048 .id = 2,
1049 },
1050 {
1051 .name = "wm831x-gpio",
1052 .num_resources = ARRAY_SIZE(wm831x_gpio_resources),
1053 .resources = wm831x_gpio_resources,
1054 },
1055 {
1056 .name = "wm831x-hwmon",
1057 },
1058 {
1059 .name = "wm831x-isink",
1060 .id = 1,
1061 .num_resources = ARRAY_SIZE(wm831x_isink1_resources),
1062 .resources = wm831x_isink1_resources,
1063 },
1064 {
1065 .name = "wm831x-isink",
1066 .id = 2,
1067 .num_resources = ARRAY_SIZE(wm831x_isink2_resources),
1068 .resources = wm831x_isink2_resources,
1069 },
1070 {
1071 .name = "wm831x-ldo",
1072 .id = 1,
1073 .num_resources = ARRAY_SIZE(wm831x_ldo1_resources),
1074 .resources = wm831x_ldo1_resources,
1075 },
1076 {
1077 .name = "wm831x-ldo",
1078 .id = 2,
1079 .num_resources = ARRAY_SIZE(wm831x_ldo2_resources),
1080 .resources = wm831x_ldo2_resources,
1081 },
1082 {
1083 .name = "wm831x-ldo",
1084 .id = 3,
1085 .num_resources = ARRAY_SIZE(wm831x_ldo3_resources),
1086 .resources = wm831x_ldo3_resources,
1087 },
1088 {
1089 .name = "wm831x-ldo",
1090 .id = 4,
1091 .num_resources = ARRAY_SIZE(wm831x_ldo4_resources),
1092 .resources = wm831x_ldo4_resources,
1093 },
1094 {
1095 .name = "wm831x-ldo",
1096 .id = 5,
1097 .num_resources = ARRAY_SIZE(wm831x_ldo5_resources),
1098 .resources = wm831x_ldo5_resources,
1099 },
1100 {
1101 .name = "wm831x-ldo",
1102 .id = 6,
1103 .num_resources = ARRAY_SIZE(wm831x_ldo6_resources),
1104 .resources = wm831x_ldo6_resources,
1105 },
1106 {
1107 .name = "wm831x-aldo",
1108 .id = 7,
1109 .num_resources = ARRAY_SIZE(wm831x_ldo7_resources),
1110 .resources = wm831x_ldo7_resources,
1111 },
1112 {
1113 .name = "wm831x-aldo",
1114 .id = 8,
1115 .num_resources = ARRAY_SIZE(wm831x_ldo8_resources),
1116 .resources = wm831x_ldo8_resources,
1117 },
1118 {
1119 .name = "wm831x-aldo",
1120 .id = 9,
1121 .num_resources = ARRAY_SIZE(wm831x_ldo9_resources),
1122 .resources = wm831x_ldo9_resources,
1123 },
1124 {
1125 .name = "wm831x-aldo",
1126 .id = 10,
1127 .num_resources = ARRAY_SIZE(wm831x_ldo10_resources),
1128 .resources = wm831x_ldo10_resources,
1129 },
1130 {
1131 .name = "wm831x-alive-ldo",
1132 .id = 11,
1133 .num_resources = ARRAY_SIZE(wm831x_ldo11_resources),
1134 .resources = wm831x_ldo11_resources,
1135 },
1136 {
1137 .name = "wm831x-on",
1138 .num_resources = ARRAY_SIZE(wm831x_on_resources),
1139 .resources = wm831x_on_resources,
1140 },
1141 {
1142 .name = "wm831x-power",
1143 .num_resources = ARRAY_SIZE(wm831x_power_resources),
1144 .resources = wm831x_power_resources,
1145 },
1146 {
1147 .name = "wm831x-status",
1148 .id = 1,
1149 .num_resources = ARRAY_SIZE(wm831x_status1_resources),
1150 .resources = wm831x_status1_resources,
1151 },
1152 {
1153 .name = "wm831x-status",
1154 .id = 2,
1155 .num_resources = ARRAY_SIZE(wm831x_status2_resources),
1156 .resources = wm831x_status2_resources,
1157 },
1158 {
1159 .name = "wm831x-watchdog",
1160 .num_resources = ARRAY_SIZE(wm831x_wdt_resources),
1161 .resources = wm831x_wdt_resources,
1162 },
1163 };
1164
1165 static struct mfd_cell wm8311_devs[] = {
1166 {
1167 .name = "wm831x-backup",
1168 },
1169 {
1170 .name = "wm831x-buckv",
1171 .id = 1,
1172 .num_resources = ARRAY_SIZE(wm831x_dcdc1_resources),
1173 .resources = wm831x_dcdc1_resources,
1174 },
1175 {
1176 .name = "wm831x-buckv",
1177 .id = 2,
1178 .num_resources = ARRAY_SIZE(wm831x_dcdc2_resources),
1179 .resources = wm831x_dcdc2_resources,
1180 },
1181 {
1182 .name = "wm831x-buckp",
1183 .id = 3,
1184 .num_resources = ARRAY_SIZE(wm831x_dcdc3_resources),
1185 .resources = wm831x_dcdc3_resources,
1186 },
1187 {
1188 .name = "wm831x-boostp",
1189 .id = 4,
1190 .num_resources = ARRAY_SIZE(wm831x_dcdc4_resources),
1191 .resources = wm831x_dcdc4_resources,
1192 },
1193 {
1194 .name = "wm831x-clk",
1195 },
1196 {
1197 .name = "wm831x-epe",
1198 .id = 1,
1199 },
1200 {
1201 .name = "wm831x-epe",
1202 .id = 2,
1203 },
1204 {
1205 .name = "wm831x-gpio",
1206 .num_resources = ARRAY_SIZE(wm831x_gpio_resources),
1207 .resources = wm831x_gpio_resources,
1208 },
1209 {
1210 .name = "wm831x-hwmon",
1211 },
1212 {
1213 .name = "wm831x-isink",
1214 .id = 1,
1215 .num_resources = ARRAY_SIZE(wm831x_isink1_resources),
1216 .resources = wm831x_isink1_resources,
1217 },
1218 {
1219 .name = "wm831x-isink",
1220 .id = 2,
1221 .num_resources = ARRAY_SIZE(wm831x_isink2_resources),
1222 .resources = wm831x_isink2_resources,
1223 },
1224 {
1225 .name = "wm831x-ldo",
1226 .id = 1,
1227 .num_resources = ARRAY_SIZE(wm831x_ldo1_resources),
1228 .resources = wm831x_ldo1_resources,
1229 },
1230 {
1231 .name = "wm831x-ldo",
1232 .id = 2,
1233 .num_resources = ARRAY_SIZE(wm831x_ldo2_resources),
1234 .resources = wm831x_ldo2_resources,
1235 },
1236 {
1237 .name = "wm831x-ldo",
1238 .id = 3,
1239 .num_resources = ARRAY_SIZE(wm831x_ldo3_resources),
1240 .resources = wm831x_ldo3_resources,
1241 },
1242 {
1243 .name = "wm831x-ldo",
1244 .id = 4,
1245 .num_resources = ARRAY_SIZE(wm831x_ldo4_resources),
1246 .resources = wm831x_ldo4_resources,
1247 },
1248 {
1249 .name = "wm831x-ldo",
1250 .id = 5,
1251 .num_resources = ARRAY_SIZE(wm831x_ldo5_resources),
1252 .resources = wm831x_ldo5_resources,
1253 },
1254 {
1255 .name = "wm831x-aldo",
1256 .id = 7,
1257 .num_resources = ARRAY_SIZE(wm831x_ldo7_resources),
1258 .resources = wm831x_ldo7_resources,
1259 },
1260 {
1261 .name = "wm831x-alive-ldo",
1262 .id = 11,
1263 .num_resources = ARRAY_SIZE(wm831x_ldo11_resources),
1264 .resources = wm831x_ldo11_resources,
1265 },
1266 {
1267 .name = "wm831x-on",
1268 .num_resources = ARRAY_SIZE(wm831x_on_resources),
1269 .resources = wm831x_on_resources,
1270 },
1271 {
1272 .name = "wm831x-power",
1273 .num_resources = ARRAY_SIZE(wm831x_power_resources),
1274 .resources = wm831x_power_resources,
1275 },
1276 {
1277 .name = "wm831x-status",
1278 .id = 1,
1279 .num_resources = ARRAY_SIZE(wm831x_status1_resources),
1280 .resources = wm831x_status1_resources,
1281 },
1282 {
1283 .name = "wm831x-status",
1284 .id = 2,
1285 .num_resources = ARRAY_SIZE(wm831x_status2_resources),
1286 .resources = wm831x_status2_resources,
1287 },
1288 {
1289 .name = "wm831x-watchdog",
1290 .num_resources = ARRAY_SIZE(wm831x_wdt_resources),
1291 .resources = wm831x_wdt_resources,
1292 },
1293 };
1294
1295 static struct mfd_cell wm8312_devs[] = {
1296 {
1297 .name = "wm831x-backup",
1298 },
1299 {
1300 .name = "wm831x-buckv",
1301 .id = 1,
1302 .num_resources = ARRAY_SIZE(wm831x_dcdc1_resources),
1303 .resources = wm831x_dcdc1_resources,
1304 },
1305 {
1306 .name = "wm831x-buckv",
1307 .id = 2,
1308 .num_resources = ARRAY_SIZE(wm831x_dcdc2_resources),
1309 .resources = wm831x_dcdc2_resources,
1310 },
1311 {
1312 .name = "wm831x-buckp",
1313 .id = 3,
1314 .num_resources = ARRAY_SIZE(wm831x_dcdc3_resources),
1315 .resources = wm831x_dcdc3_resources,
1316 },
1317 {
1318 .name = "wm831x-boostp",
1319 .id = 4,
1320 .num_resources = ARRAY_SIZE(wm831x_dcdc4_resources),
1321 .resources = wm831x_dcdc4_resources,
1322 },
1323 {
1324 .name = "wm831x-clk",
1325 },
1326 {
1327 .name = "wm831x-epe",
1328 .id = 1,
1329 },
1330 {
1331 .name = "wm831x-epe",
1332 .id = 2,
1333 },
1334 {
1335 .name = "wm831x-gpio",
1336 .num_resources = ARRAY_SIZE(wm831x_gpio_resources),
1337 .resources = wm831x_gpio_resources,
1338 },
1339 {
1340 .name = "wm831x-hwmon",
1341 },
1342 {
1343 .name = "wm831x-isink",
1344 .id = 1,
1345 .num_resources = ARRAY_SIZE(wm831x_isink1_resources),
1346 .resources = wm831x_isink1_resources,
1347 },
1348 {
1349 .name = "wm831x-isink",
1350 .id = 2,
1351 .num_resources = ARRAY_SIZE(wm831x_isink2_resources),
1352 .resources = wm831x_isink2_resources,
1353 },
1354 {
1355 .name = "wm831x-ldo",
1356 .id = 1,
1357 .num_resources = ARRAY_SIZE(wm831x_ldo1_resources),
1358 .resources = wm831x_ldo1_resources,
1359 },
1360 {
1361 .name = "wm831x-ldo",
1362 .id = 2,
1363 .num_resources = ARRAY_SIZE(wm831x_ldo2_resources),
1364 .resources = wm831x_ldo2_resources,
1365 },
1366 {
1367 .name = "wm831x-ldo",
1368 .id = 3,
1369 .num_resources = ARRAY_SIZE(wm831x_ldo3_resources),
1370 .resources = wm831x_ldo3_resources,
1371 },
1372 {
1373 .name = "wm831x-ldo",
1374 .id = 4,
1375 .num_resources = ARRAY_SIZE(wm831x_ldo4_resources),
1376 .resources = wm831x_ldo4_resources,
1377 },
1378 {
1379 .name = "wm831x-ldo",
1380 .id = 5,
1381 .num_resources = ARRAY_SIZE(wm831x_ldo5_resources),
1382 .resources = wm831x_ldo5_resources,
1383 },
1384 {
1385 .name = "wm831x-ldo",
1386 .id = 6,
1387 .num_resources = ARRAY_SIZE(wm831x_ldo6_resources),
1388 .resources = wm831x_ldo6_resources,
1389 },
1390 {
1391 .name = "wm831x-aldo",
1392 .id = 7,
1393 .num_resources = ARRAY_SIZE(wm831x_ldo7_resources),
1394 .resources = wm831x_ldo7_resources,
1395 },
1396 {
1397 .name = "wm831x-aldo",
1398 .id = 8,
1399 .num_resources = ARRAY_SIZE(wm831x_ldo8_resources),
1400 .resources = wm831x_ldo8_resources,
1401 },
1402 {
1403 .name = "wm831x-aldo",
1404 .id = 9,
1405 .num_resources = ARRAY_SIZE(wm831x_ldo9_resources),
1406 .resources = wm831x_ldo9_resources,
1407 },
1408 {
1409 .name = "wm831x-aldo",
1410 .id = 10,
1411 .num_resources = ARRAY_SIZE(wm831x_ldo10_resources),
1412 .resources = wm831x_ldo10_resources,
1413 },
1414 {
1415 .name = "wm831x-alive-ldo",
1416 .id = 11,
1417 .num_resources = ARRAY_SIZE(wm831x_ldo11_resources),
1418 .resources = wm831x_ldo11_resources,
1419 },
1420 {
1421 .name = "wm831x-on",
1422 .num_resources = ARRAY_SIZE(wm831x_on_resources),
1423 .resources = wm831x_on_resources,
1424 },
1425 {
1426 .name = "wm831x-power",
1427 .num_resources = ARRAY_SIZE(wm831x_power_resources),
1428 .resources = wm831x_power_resources,
1429 },
1430 {
1431 .name = "wm831x-status",
1432 .id = 1,
1433 .num_resources = ARRAY_SIZE(wm831x_status1_resources),
1434 .resources = wm831x_status1_resources,
1435 },
1436 {
1437 .name = "wm831x-status",
1438 .id = 2,
1439 .num_resources = ARRAY_SIZE(wm831x_status2_resources),
1440 .resources = wm831x_status2_resources,
1441 },
1442 {
1443 .name = "wm831x-watchdog",
1444 .num_resources = ARRAY_SIZE(wm831x_wdt_resources),
1445 .resources = wm831x_wdt_resources,
1446 },
1447 };
1448
1449 static struct mfd_cell wm8320_devs[] = {
1450 {
1451 .name = "wm831x-backup",
1452 },
1453 {
1454 .name = "wm831x-buckv",
1455 .id = 1,
1456 .num_resources = ARRAY_SIZE(wm831x_dcdc1_resources),
1457 .resources = wm831x_dcdc1_resources,
1458 },
1459 {
1460 .name = "wm831x-buckv",
1461 .id = 2,
1462 .num_resources = ARRAY_SIZE(wm831x_dcdc2_resources),
1463 .resources = wm831x_dcdc2_resources,
1464 },
1465 {
1466 .name = "wm831x-buckp",
1467 .id = 3,
1468 .num_resources = ARRAY_SIZE(wm831x_dcdc3_resources),
1469 .resources = wm831x_dcdc3_resources,
1470 },
1471 {
1472 .name = "wm831x-buckp",
1473 .id = 4,
1474 .num_resources = ARRAY_SIZE(wm8320_dcdc4_buck_resources),
1475 .resources = wm8320_dcdc4_buck_resources,
1476 },
1477 {
1478 .name = "wm831x-clk",
1479 },
1480 {
1481 .name = "wm831x-gpio",
1482 .num_resources = ARRAY_SIZE(wm831x_gpio_resources),
1483 .resources = wm831x_gpio_resources,
1484 },
1485 {
1486 .name = "wm831x-hwmon",
1487 },
1488 {
1489 .name = "wm831x-ldo",
1490 .id = 1,
1491 .num_resources = ARRAY_SIZE(wm831x_ldo1_resources),
1492 .resources = wm831x_ldo1_resources,
1493 },
1494 {
1495 .name = "wm831x-ldo",
1496 .id = 2,
1497 .num_resources = ARRAY_SIZE(wm831x_ldo2_resources),
1498 .resources = wm831x_ldo2_resources,
1499 },
1500 {
1501 .name = "wm831x-ldo",
1502 .id = 3,
1503 .num_resources = ARRAY_SIZE(wm831x_ldo3_resources),
1504 .resources = wm831x_ldo3_resources,
1505 },
1506 {
1507 .name = "wm831x-ldo",
1508 .id = 4,
1509 .num_resources = ARRAY_SIZE(wm831x_ldo4_resources),
1510 .resources = wm831x_ldo4_resources,
1511 },
1512 {
1513 .name = "wm831x-ldo",
1514 .id = 5,
1515 .num_resources = ARRAY_SIZE(wm831x_ldo5_resources),
1516 .resources = wm831x_ldo5_resources,
1517 },
1518 {
1519 .name = "wm831x-ldo",
1520 .id = 6,
1521 .num_resources = ARRAY_SIZE(wm831x_ldo6_resources),
1522 .resources = wm831x_ldo6_resources,
1523 },
1524 {
1525 .name = "wm831x-aldo",
1526 .id = 7,
1527 .num_resources = ARRAY_SIZE(wm831x_ldo7_resources),
1528 .resources = wm831x_ldo7_resources,
1529 },
1530 {
1531 .name = "wm831x-aldo",
1532 .id = 8,
1533 .num_resources = ARRAY_SIZE(wm831x_ldo8_resources),
1534 .resources = wm831x_ldo8_resources,
1535 },
1536 {
1537 .name = "wm831x-aldo",
1538 .id = 9,
1539 .num_resources = ARRAY_SIZE(wm831x_ldo9_resources),
1540 .resources = wm831x_ldo9_resources,
1541 },
1542 {
1543 .name = "wm831x-aldo",
1544 .id = 10,
1545 .num_resources = ARRAY_SIZE(wm831x_ldo10_resources),
1546 .resources = wm831x_ldo10_resources,
1547 },
1548 {
1549 .name = "wm831x-alive-ldo",
1550 .id = 11,
1551 .num_resources = ARRAY_SIZE(wm831x_ldo11_resources),
1552 .resources = wm831x_ldo11_resources,
1553 },
1554 {
1555 .name = "wm831x-on",
1556 .num_resources = ARRAY_SIZE(wm831x_on_resources),
1557 .resources = wm831x_on_resources,
1558 },
1559 {
1560 .name = "wm831x-status",
1561 .id = 1,
1562 .num_resources = ARRAY_SIZE(wm831x_status1_resources),
1563 .resources = wm831x_status1_resources,
1564 },
1565 {
1566 .name = "wm831x-status",
1567 .id = 2,
1568 .num_resources = ARRAY_SIZE(wm831x_status2_resources),
1569 .resources = wm831x_status2_resources,
1570 },
1571 {
1572 .name = "wm831x-watchdog",
1573 .num_resources = ARRAY_SIZE(wm831x_wdt_resources),
1574 .resources = wm831x_wdt_resources,
1575 },
1576 };
1577
1578 static struct mfd_cell touch_devs[] = {
1579 {
1580 .name = "wm831x-touch",
1581 .num_resources = ARRAY_SIZE(wm831x_touch_resources),
1582 .resources = wm831x_touch_resources,
1583 },
1584 };
1585
1586 static struct mfd_cell rtc_devs[] = {
1587 {
1588 .name = "wm831x-rtc",
1589 .num_resources = ARRAY_SIZE(wm831x_rtc_resources),
1590 .resources = wm831x_rtc_resources,
1591 },
1592 };
1593
1594 static struct mfd_cell backlight_devs[] = {
1595 {
1596 .name = "wm831x-backlight",
1597 },
1598 };
1599
1600 struct regmap_config wm831x_regmap_config = {
1601 .reg_bits = 16,
1602 .val_bits = 16,
1603
1604 .max_register = WM831X_DBE_CHECK_DATA,
1605 .readable_reg = wm831x_reg_readable,
1606 .writeable_reg = wm831x_reg_writeable,
1607 .volatile_reg = wm831x_reg_volatile,
1608 };
1609 EXPORT_SYMBOL_GPL(wm831x_regmap_config);
1610
1611 /*
1612 * Instantiate the generic non-control parts of the device.
1613 */
1614 int wm831x_device_init(struct wm831x *wm831x, unsigned long id, int irq)
1615 {
1616 struct wm831x_pdata *pdata = wm831x->dev->platform_data;
1617 int rev, wm831x_num;
1618 enum wm831x_parent parent;
1619 int ret, i;
1620
1621 mutex_init(&wm831x->io_lock);
1622 mutex_init(&wm831x->key_lock);
1623 dev_set_drvdata(wm831x->dev, wm831x);
1624
1625 ret = wm831x_reg_read(wm831x, WM831X_PARENT_ID);
1626 if (ret < 0) {
1627 dev_err(wm831x->dev, "Failed to read parent ID: %d\n", ret);
1628 goto err_regmap;
1629 }
1630 switch (ret) {
1631 case 0x6204:
1632 case 0x6246:
1633 break;
1634 default:
1635 dev_err(wm831x->dev, "Device is not a WM831x: ID %x\n", ret);
1636 ret = -EINVAL;
1637 goto err_regmap;
1638 }
1639
1640 ret = wm831x_reg_read(wm831x, WM831X_REVISION);
1641 if (ret < 0) {
1642 dev_err(wm831x->dev, "Failed to read revision: %d\n", ret);
1643 goto err_regmap;
1644 }
1645 rev = (ret & WM831X_PARENT_REV_MASK) >> WM831X_PARENT_REV_SHIFT;
1646
1647 ret = wm831x_reg_read(wm831x, WM831X_RESET_ID);
1648 if (ret < 0) {
1649 dev_err(wm831x->dev, "Failed to read device ID: %d\n", ret);
1650 goto err_regmap;
1651 }
1652
1653 /* Some engineering samples do not have the ID set, rely on
1654 * the device being registered correctly.
1655 */
1656 if (ret == 0) {
1657 dev_info(wm831x->dev, "Device is an engineering sample\n");
1658 ret = id;
1659 }
1660
1661 switch (ret) {
1662 case WM8310:
1663 parent = WM8310;
1664 wm831x->num_gpio = 16;
1665 wm831x->charger_irq_wake = 1;
1666 if (rev > 0) {
1667 wm831x->has_gpio_ena = 1;
1668 wm831x->has_cs_sts = 1;
1669 }
1670
1671 dev_info(wm831x->dev, "WM8310 revision %c\n", 'A' + rev);
1672 break;
1673
1674 case WM8311:
1675 parent = WM8311;
1676 wm831x->num_gpio = 16;
1677 wm831x->charger_irq_wake = 1;
1678 if (rev > 0) {
1679 wm831x->has_gpio_ena = 1;
1680 wm831x->has_cs_sts = 1;
1681 }
1682
1683 dev_info(wm831x->dev, "WM8311 revision %c\n", 'A' + rev);
1684 break;
1685
1686 case WM8312:
1687 parent = WM8312;
1688 wm831x->num_gpio = 16;
1689 wm831x->charger_irq_wake = 1;
1690 if (rev > 0) {
1691 wm831x->has_gpio_ena = 1;
1692 wm831x->has_cs_sts = 1;
1693 }
1694
1695 dev_info(wm831x->dev, "WM8312 revision %c\n", 'A' + rev);
1696 break;
1697
1698 case WM8320:
1699 parent = WM8320;
1700 wm831x->num_gpio = 12;
1701 dev_info(wm831x->dev, "WM8320 revision %c\n", 'A' + rev);
1702 break;
1703
1704 case WM8321:
1705 parent = WM8321;
1706 wm831x->num_gpio = 12;
1707 dev_info(wm831x->dev, "WM8321 revision %c\n", 'A' + rev);
1708 break;
1709
1710 case WM8325:
1711 parent = WM8325;
1712 wm831x->num_gpio = 12;
1713 dev_info(wm831x->dev, "WM8325 revision %c\n", 'A' + rev);
1714 break;
1715
1716 case WM8326:
1717 parent = WM8326;
1718 wm831x->num_gpio = 12;
1719 dev_info(wm831x->dev, "WM8326 revision %c\n", 'A' + rev);
1720 break;
1721
1722 default:
1723 dev_err(wm831x->dev, "Unknown WM831x device %04x\n", ret);
1724 ret = -EINVAL;
1725 goto err_regmap;
1726 }
1727
1728 /* This will need revisiting in future but is OK for all
1729 * current parts.
1730 */
1731 if (parent != id)
1732 dev_warn(wm831x->dev, "Device was registered as a WM%lx\n",
1733 id);
1734
1735 /* Bootstrap the user key */
1736 ret = wm831x_reg_read(wm831x, WM831X_SECURITY_KEY);
1737 if (ret < 0) {
1738 dev_err(wm831x->dev, "Failed to read security key: %d\n", ret);
1739 goto err_regmap;
1740 }
1741 if (ret != 0) {
1742 dev_warn(wm831x->dev, "Security key had non-zero value %x\n",
1743 ret);
1744 wm831x_reg_write(wm831x, WM831X_SECURITY_KEY, 0);
1745 }
1746 wm831x->locked = 1;
1747
1748 if (pdata && pdata->pre_init) {
1749 ret = pdata->pre_init(wm831x);
1750 if (ret != 0) {
1751 dev_err(wm831x->dev, "pre_init() failed: %d\n", ret);
1752 goto err_regmap;
1753 }
1754 }
1755
1756 if (pdata) {
1757 for (i = 0; i < ARRAY_SIZE(pdata->gpio_defaults); i++) {
1758 if (!pdata->gpio_defaults[i])
1759 continue;
1760
1761 wm831x_reg_write(wm831x,
1762 WM831X_GPIO1_CONTROL + i,
1763 pdata->gpio_defaults[i] & 0xffff);
1764 }
1765 }
1766
1767 /* Multiply by 10 as we have many subdevices of the same type */
1768 if (pdata && pdata->wm831x_num)
1769 wm831x_num = pdata->wm831x_num * 10;
1770 else
1771 wm831x_num = -1;
1772
1773 ret = wm831x_irq_init(wm831x, irq);
1774 if (ret != 0)
1775 goto err_regmap;
1776
1777 wm831x_auxadc_init(wm831x);
1778
1779 /* The core device is up, instantiate the subdevices. */
1780 switch (parent) {
1781 case WM8310:
1782 ret = mfd_add_devices(wm831x->dev, wm831x_num,
1783 wm8310_devs, ARRAY_SIZE(wm8310_devs),
1784 NULL, wm831x->irq_base);
1785 break;
1786
1787 case WM8311:
1788 ret = mfd_add_devices(wm831x->dev, wm831x_num,
1789 wm8311_devs, ARRAY_SIZE(wm8311_devs),
1790 NULL, wm831x->irq_base);
1791 if (!pdata || !pdata->disable_touch)
1792 mfd_add_devices(wm831x->dev, wm831x_num,
1793 touch_devs, ARRAY_SIZE(touch_devs),
1794 NULL, wm831x->irq_base);
1795 break;
1796
1797 case WM8312:
1798 ret = mfd_add_devices(wm831x->dev, wm831x_num,
1799 wm8312_devs, ARRAY_SIZE(wm8312_devs),
1800 NULL, wm831x->irq_base);
1801 if (!pdata || !pdata->disable_touch)
1802 mfd_add_devices(wm831x->dev, wm831x_num,
1803 touch_devs, ARRAY_SIZE(touch_devs),
1804 NULL, wm831x->irq_base);
1805 break;
1806
1807 case WM8320:
1808 case WM8321:
1809 case WM8325:
1810 case WM8326:
1811 ret = mfd_add_devices(wm831x->dev, wm831x_num,
1812 wm8320_devs, ARRAY_SIZE(wm8320_devs),
1813 NULL, wm831x->irq_base);
1814 break;
1815
1816 default:
1817 /* If this happens the bus probe function is buggy */
1818 BUG();
1819 }
1820
1821 if (ret != 0) {
1822 dev_err(wm831x->dev, "Failed to add children\n");
1823 goto err_irq;
1824 }
1825
1826 /* The RTC can only be used if the 32.768kHz crystal is
1827 * enabled; this can't be controlled by software at runtime.
1828 */
1829 ret = wm831x_reg_read(wm831x, WM831X_CLOCK_CONTROL_2);
1830 if (ret < 0) {
1831 dev_err(wm831x->dev, "Failed to read clock status: %d\n", ret);
1832 goto err_irq;
1833 }
1834
1835 if (ret & WM831X_XTAL_ENA) {
1836 ret = mfd_add_devices(wm831x->dev, wm831x_num,
1837 rtc_devs, ARRAY_SIZE(rtc_devs),
1838 NULL, wm831x->irq_base);
1839 if (ret != 0) {
1840 dev_err(wm831x->dev, "Failed to add RTC: %d\n", ret);
1841 goto err_irq;
1842 }
1843 } else {
1844 dev_info(wm831x->dev, "32.768kHz clock disabled, no RTC\n");
1845 }
1846
1847 if (pdata && pdata->backlight) {
1848 /* Treat errors as non-critical */
1849 ret = mfd_add_devices(wm831x->dev, wm831x_num, backlight_devs,
1850 ARRAY_SIZE(backlight_devs), NULL,
1851 wm831x->irq_base);
1852 if (ret < 0)
1853 dev_err(wm831x->dev, "Failed to add backlight: %d\n",
1854 ret);
1855 }
1856
1857 wm831x_otp_init(wm831x);
1858
1859 if (pdata && pdata->post_init) {
1860 ret = pdata->post_init(wm831x);
1861 if (ret != 0) {
1862 dev_err(wm831x->dev, "post_init() failed: %d\n", ret);
1863 goto err_irq;
1864 }
1865 }
1866
1867 return 0;
1868
1869 err_irq:
1870 wm831x_irq_exit(wm831x);
1871 err_regmap:
1872 mfd_remove_devices(wm831x->dev);
1873 regmap_exit(wm831x->regmap);
1874 kfree(wm831x);
1875 return ret;
1876 }
1877
1878 void wm831x_device_exit(struct wm831x *wm831x)
1879 {
1880 wm831x_otp_exit(wm831x);
1881 mfd_remove_devices(wm831x->dev);
1882 if (wm831x->irq_base)
1883 free_irq(wm831x->irq_base + WM831X_IRQ_AUXADC_DATA, wm831x);
1884 wm831x_irq_exit(wm831x);
1885 regmap_exit(wm831x->regmap);
1886 kfree(wm831x);
1887 }
1888
1889 int wm831x_device_suspend(struct wm831x *wm831x)
1890 {
1891 int reg, mask;
1892
1893 /* If the charger IRQs are a wake source then make sure we ack
1894 * them even if they're not actively being used (eg, no power
1895 * driver or no IRQ line wired up) then acknowledge the
1896 * interrupts otherwise suspend won't last very long.
1897 */
1898 if (wm831x->charger_irq_wake) {
1899 reg = wm831x_reg_read(wm831x, WM831X_INTERRUPT_STATUS_2_MASK);
1900
1901 mask = WM831X_CHG_BATT_HOT_EINT |
1902 WM831X_CHG_BATT_COLD_EINT |
1903 WM831X_CHG_BATT_FAIL_EINT |
1904 WM831X_CHG_OV_EINT | WM831X_CHG_END_EINT |
1905 WM831X_CHG_TO_EINT | WM831X_CHG_MODE_EINT |
1906 WM831X_CHG_START_EINT;
1907
1908 /* If any of the interrupts are masked read the statuses */
1909 if (reg & mask)
1910 reg = wm831x_reg_read(wm831x,
1911 WM831X_INTERRUPT_STATUS_2);
1912
1913 if (reg & mask) {
1914 dev_info(wm831x->dev,
1915 "Acknowledging masked charger IRQs: %x\n",
1916 reg & mask);
1917 wm831x_reg_write(wm831x, WM831X_INTERRUPT_STATUS_2,
1918 reg & mask);
1919 }
1920 }
1921
1922 return 0;
1923 }
1924
1925 MODULE_DESCRIPTION("Core support for the WM831X AudioPlus PMIC");
1926 MODULE_LICENSE("GPL");
1927 MODULE_AUTHOR("Mark Brown");
linux-next