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Adding support for MOXA ART SoC. Testing port of linux-2.6.32.60-moxart.
[linux-3.6.7-moxart.git] / drivers / mfd / wm831x-core.c
blob3017310359403248719495fe39692698271ba7ed
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_io_parent = {
618 .start = 0,
619 .end = 0xffffffff,
620 .flags = IORESOURCE_IO,
621 };
622
623 static struct resource wm831x_dcdc1_resources[] = {
624 {
625 .parent = &wm831x_io_parent,
626 .start = WM831X_DC1_CONTROL_1,
627 .end = WM831X_DC1_DVS_CONTROL,
628 .flags = IORESOURCE_IO,
629 },
630 {
631 .name = "UV",
632 .start = WM831X_IRQ_UV_DC1,
633 .end = WM831X_IRQ_UV_DC1,
634 .flags = IORESOURCE_IRQ,
635 },
636 {
637 .name = "HC",
638 .start = WM831X_IRQ_HC_DC1,
639 .end = WM831X_IRQ_HC_DC1,
640 .flags = IORESOURCE_IRQ,
641 },
642 };
643
644
645 static struct resource wm831x_dcdc2_resources[] = {
646 {
647 .parent = &wm831x_io_parent,
648 .start = WM831X_DC2_CONTROL_1,
649 .end = WM831X_DC2_DVS_CONTROL,
650 .flags = IORESOURCE_IO,
651 },
652 {
653 .name = "UV",
654 .start = WM831X_IRQ_UV_DC2,
655 .end = WM831X_IRQ_UV_DC2,
656 .flags = IORESOURCE_IRQ,
657 },
658 {
659 .name = "HC",
660 .start = WM831X_IRQ_HC_DC2,
661 .end = WM831X_IRQ_HC_DC2,
662 .flags = IORESOURCE_IRQ,
663 },
664 };
665
666 static struct resource wm831x_dcdc3_resources[] = {
667 {
668 .parent = &wm831x_io_parent,
669 .start = WM831X_DC3_CONTROL_1,
670 .end = WM831X_DC3_SLEEP_CONTROL,
671 .flags = IORESOURCE_IO,
672 },
673 {
674 .name = "UV",
675 .start = WM831X_IRQ_UV_DC3,
676 .end = WM831X_IRQ_UV_DC3,
677 .flags = IORESOURCE_IRQ,
678 },
679 };
680
681 static struct resource wm831x_dcdc4_resources[] = {
682 {
683 .parent = &wm831x_io_parent,
684 .start = WM831X_DC4_CONTROL,
685 .end = WM831X_DC4_SLEEP_CONTROL,
686 .flags = IORESOURCE_IO,
687 },
688 {
689 .name = "UV",
690 .start = WM831X_IRQ_UV_DC4,
691 .end = WM831X_IRQ_UV_DC4,
692 .flags = IORESOURCE_IRQ,
693 },
694 };
695
696 static struct resource wm8320_dcdc4_buck_resources[] = {
697 {
698 .parent = &wm831x_io_parent,
699 .start = WM831X_DC4_CONTROL,
700 .end = WM832X_DC4_SLEEP_CONTROL,
701 .flags = IORESOURCE_IO,
702 },
703 {
704 .name = "UV",
705 .start = WM831X_IRQ_UV_DC4,
706 .end = WM831X_IRQ_UV_DC4,
707 .flags = IORESOURCE_IRQ,
708 },
709 };
710
711 static struct resource wm831x_gpio_resources[] = {
712 {
713 .start = WM831X_IRQ_GPIO_1,
714 .end = WM831X_IRQ_GPIO_16,
715 .flags = IORESOURCE_IRQ,
716 },
717 };
718
719 static struct resource wm831x_isink1_resources[] = {
720 {
721 .parent = &wm831x_io_parent,
722 .start = WM831X_CURRENT_SINK_1,
723 .end = WM831X_CURRENT_SINK_1,
724 .flags = IORESOURCE_IO,
725 },
726 {
727 .start = WM831X_IRQ_CS1,
728 .end = WM831X_IRQ_CS1,
729 .flags = IORESOURCE_IRQ,
730 },
731 };
732
733 static struct resource wm831x_isink2_resources[] = {
734 {
735 .parent = &wm831x_io_parent,
736 .start = WM831X_CURRENT_SINK_2,
737 .end = WM831X_CURRENT_SINK_2,
738 .flags = IORESOURCE_IO,
739 },
740 {
741 .start = WM831X_IRQ_CS2,
742 .end = WM831X_IRQ_CS2,
743 .flags = IORESOURCE_IRQ,
744 },
745 };
746
747 static struct resource wm831x_ldo1_resources[] = {
748 {
749 .parent = &wm831x_io_parent,
750 .start = WM831X_LDO1_CONTROL,
751 .end = WM831X_LDO1_SLEEP_CONTROL,
752 .flags = IORESOURCE_IO,
753 },
754 {
755 .name = "UV",
756 .start = WM831X_IRQ_UV_LDO1,
757 .end = WM831X_IRQ_UV_LDO1,
758 .flags = IORESOURCE_IRQ,
759 },
760 };
761
762 static struct resource wm831x_ldo2_resources[] = {
763 {
764 .parent = &wm831x_io_parent,
765 .start = WM831X_LDO2_CONTROL,
766 .end = WM831X_LDO2_SLEEP_CONTROL,
767 .flags = IORESOURCE_IO,
768 },
769 {
770 .name = "UV",
771 .start = WM831X_IRQ_UV_LDO2,
772 .end = WM831X_IRQ_UV_LDO2,
773 .flags = IORESOURCE_IRQ,
774 },
775 };
776
777 static struct resource wm831x_ldo3_resources[] = {
778 {
779 .parent = &wm831x_io_parent,
780 .start = WM831X_LDO3_CONTROL,
781 .end = WM831X_LDO3_SLEEP_CONTROL,
782 .flags = IORESOURCE_IO,
783 },
784 {
785 .name = "UV",
786 .start = WM831X_IRQ_UV_LDO3,
787 .end = WM831X_IRQ_UV_LDO3,
788 .flags = IORESOURCE_IRQ,
789 },
790 };
791
792 static struct resource wm831x_ldo4_resources[] = {
793 {
794 .parent = &wm831x_io_parent,
795 .start = WM831X_LDO4_CONTROL,
796 .end = WM831X_LDO4_SLEEP_CONTROL,
797 .flags = IORESOURCE_IO,
798 },
799 {
800 .name = "UV",
801 .start = WM831X_IRQ_UV_LDO4,
802 .end = WM831X_IRQ_UV_LDO4,
803 .flags = IORESOURCE_IRQ,
804 },
805 };
806
807 static struct resource wm831x_ldo5_resources[] = {
808 {
809 .parent = &wm831x_io_parent,
810 .start = WM831X_LDO5_CONTROL,
811 .end = WM831X_LDO5_SLEEP_CONTROL,
812 .flags = IORESOURCE_IO,
813 },
814 {
815 .name = "UV",
816 .start = WM831X_IRQ_UV_LDO5,
817 .end = WM831X_IRQ_UV_LDO5,
818 .flags = IORESOURCE_IRQ,
819 },
820 };
821
822 static struct resource wm831x_ldo6_resources[] = {
823 {
824 .parent = &wm831x_io_parent,
825 .start = WM831X_LDO6_CONTROL,
826 .end = WM831X_LDO6_SLEEP_CONTROL,
827 .flags = IORESOURCE_IO,
828 },
829 {
830 .name = "UV",
831 .start = WM831X_IRQ_UV_LDO6,
832 .end = WM831X_IRQ_UV_LDO6,
833 .flags = IORESOURCE_IRQ,
834 },
835 };
836
837 static struct resource wm831x_ldo7_resources[] = {
838 {
839 .parent = &wm831x_io_parent,
840 .start = WM831X_LDO7_CONTROL,
841 .end = WM831X_LDO7_SLEEP_CONTROL,
842 .flags = IORESOURCE_IO,
843 },
844 {
845 .name = "UV",
846 .start = WM831X_IRQ_UV_LDO7,
847 .end = WM831X_IRQ_UV_LDO7,
848 .flags = IORESOURCE_IRQ,
849 },
850 };
851
852 static struct resource wm831x_ldo8_resources[] = {
853 {
854 .parent = &wm831x_io_parent,
855 .start = WM831X_LDO8_CONTROL,
856 .end = WM831X_LDO8_SLEEP_CONTROL,
857 .flags = IORESOURCE_IO,
858 },
859 {
860 .name = "UV",
861 .start = WM831X_IRQ_UV_LDO8,
862 .end = WM831X_IRQ_UV_LDO8,
863 .flags = IORESOURCE_IRQ,
864 },
865 };
866
867 static struct resource wm831x_ldo9_resources[] = {
868 {
869 .parent = &wm831x_io_parent,
870 .start = WM831X_LDO9_CONTROL,
871 .end = WM831X_LDO9_SLEEP_CONTROL,
872 .flags = IORESOURCE_IO,
873 },
874 {
875 .name = "UV",
876 .start = WM831X_IRQ_UV_LDO9,
877 .end = WM831X_IRQ_UV_LDO9,
878 .flags = IORESOURCE_IRQ,
879 },
880 };
881
882 static struct resource wm831x_ldo10_resources[] = {
883 {
884 .parent = &wm831x_io_parent,
885 .start = WM831X_LDO10_CONTROL,
886 .end = WM831X_LDO10_SLEEP_CONTROL,
887 .flags = IORESOURCE_IO,
888 },
889 {
890 .name = "UV",
891 .start = WM831X_IRQ_UV_LDO10,
892 .end = WM831X_IRQ_UV_LDO10,
893 .flags = IORESOURCE_IRQ,
894 },
895 };
896
897 static struct resource wm831x_ldo11_resources[] = {
898 {
899 .parent = &wm831x_io_parent,
900 .start = WM831X_LDO11_ON_CONTROL,
901 .end = WM831X_LDO11_SLEEP_CONTROL,
902 .flags = IORESOURCE_IO,
903 },
904 };
905
906 static struct resource wm831x_on_resources[] = {
907 {
908 .start = WM831X_IRQ_ON,
909 .end = WM831X_IRQ_ON,
910 .flags = IORESOURCE_IRQ,
911 },
912 };
913
914
915 static struct resource wm831x_power_resources[] = {
916 {
917 .name = "SYSLO",
918 .start = WM831X_IRQ_PPM_SYSLO,
919 .end = WM831X_IRQ_PPM_SYSLO,
920 .flags = IORESOURCE_IRQ,
921 },
922 {
923 .name = "PWR SRC",
924 .start = WM831X_IRQ_PPM_PWR_SRC,
925 .end = WM831X_IRQ_PPM_PWR_SRC,
926 .flags = IORESOURCE_IRQ,
927 },
928 {
929 .name = "USB CURR",
930 .start = WM831X_IRQ_PPM_USB_CURR,
931 .end = WM831X_IRQ_PPM_USB_CURR,
932 .flags = IORESOURCE_IRQ,
933 },
934 {
935 .name = "BATT HOT",
936 .start = WM831X_IRQ_CHG_BATT_HOT,
937 .end = WM831X_IRQ_CHG_BATT_HOT,
938 .flags = IORESOURCE_IRQ,
939 },
940 {
941 .name = "BATT COLD",
942 .start = WM831X_IRQ_CHG_BATT_COLD,
943 .end = WM831X_IRQ_CHG_BATT_COLD,
944 .flags = IORESOURCE_IRQ,
945 },
946 {
947 .name = "BATT FAIL",
948 .start = WM831X_IRQ_CHG_BATT_FAIL,
949 .end = WM831X_IRQ_CHG_BATT_FAIL,
950 .flags = IORESOURCE_IRQ,
951 },
952 {
953 .name = "OV",
954 .start = WM831X_IRQ_CHG_OV,
955 .end = WM831X_IRQ_CHG_OV,
956 .flags = IORESOURCE_IRQ,
957 },
958 {
959 .name = "END",
960 .start = WM831X_IRQ_CHG_END,
961 .end = WM831X_IRQ_CHG_END,
962 .flags = IORESOURCE_IRQ,
963 },
964 {
965 .name = "TO",
966 .start = WM831X_IRQ_CHG_TO,
967 .end = WM831X_IRQ_CHG_TO,
968 .flags = IORESOURCE_IRQ,
969 },
970 {
971 .name = "MODE",
972 .start = WM831X_IRQ_CHG_MODE,
973 .end = WM831X_IRQ_CHG_MODE,
974 .flags = IORESOURCE_IRQ,
975 },
976 {
977 .name = "START",
978 .start = WM831X_IRQ_CHG_START,
979 .end = WM831X_IRQ_CHG_START,
980 .flags = IORESOURCE_IRQ,
981 },
982 };
983
984 static struct resource wm831x_rtc_resources[] = {
985 {
986 .name = "PER",
987 .start = WM831X_IRQ_RTC_PER,
988 .end = WM831X_IRQ_RTC_PER,
989 .flags = IORESOURCE_IRQ,
990 },
991 {
992 .name = "ALM",
993 .start = WM831X_IRQ_RTC_ALM,
994 .end = WM831X_IRQ_RTC_ALM,
995 .flags = IORESOURCE_IRQ,
996 },
997 };
998
999 static struct resource wm831x_status1_resources[] = {
1000 {
1001 .parent = &wm831x_io_parent,
1002 .start = WM831X_STATUS_LED_1,
1003 .end = WM831X_STATUS_LED_1,
1004 .flags = IORESOURCE_IO,
1005 },
1006 };
1007
1008 static struct resource wm831x_status2_resources[] = {
1009 {
1010 .parent = &wm831x_io_parent,
1011 .start = WM831X_STATUS_LED_2,
1012 .end = WM831X_STATUS_LED_2,
1013 .flags = IORESOURCE_IO,
1014 },
1015 };
1016
1017 static struct resource wm831x_touch_resources[] = {
1018 {
1019 .name = "TCHPD",
1020 .start = WM831X_IRQ_TCHPD,
1021 .end = WM831X_IRQ_TCHPD,
1022 .flags = IORESOURCE_IRQ,
1023 },
1024 {
1025 .name = "TCHDATA",
1026 .start = WM831X_IRQ_TCHDATA,
1027 .end = WM831X_IRQ_TCHDATA,
1028 .flags = IORESOURCE_IRQ,
1029 },
1030 };
1031
1032 static struct resource wm831x_wdt_resources[] = {
1033 {
1034 .start = WM831X_IRQ_WDOG_TO,
1035 .end = WM831X_IRQ_WDOG_TO,
1036 .flags = IORESOURCE_IRQ,
1037 },
1038 };
1039
1040 static struct mfd_cell wm8310_devs[] = {
1041 {
1042 .name = "wm831x-backup",
1043 },
1044 {
1045 .name = "wm831x-buckv",
1046 .id = 1,
1047 .num_resources = ARRAY_SIZE(wm831x_dcdc1_resources),
1048 .resources = wm831x_dcdc1_resources,
1049 },
1050 {
1051 .name = "wm831x-buckv",
1052 .id = 2,
1053 .num_resources = ARRAY_SIZE(wm831x_dcdc2_resources),
1054 .resources = wm831x_dcdc2_resources,
1055 },
1056 {
1057 .name = "wm831x-buckp",
1058 .id = 3,
1059 .num_resources = ARRAY_SIZE(wm831x_dcdc3_resources),
1060 .resources = wm831x_dcdc3_resources,
1061 },
1062 {
1063 .name = "wm831x-boostp",
1064 .id = 4,
1065 .num_resources = ARRAY_SIZE(wm831x_dcdc4_resources),
1066 .resources = wm831x_dcdc4_resources,
1067 },
1068 {
1069 .name = "wm831x-clk",
1070 },
1071 {
1072 .name = "wm831x-epe",
1073 .id = 1,
1074 },
1075 {
1076 .name = "wm831x-epe",
1077 .id = 2,
1078 },
1079 {
1080 .name = "wm831x-gpio",
1081 .num_resources = ARRAY_SIZE(wm831x_gpio_resources),
1082 .resources = wm831x_gpio_resources,
1083 },
1084 {
1085 .name = "wm831x-hwmon",
1086 },
1087 {
1088 .name = "wm831x-isink",
1089 .id = 1,
1090 .num_resources = ARRAY_SIZE(wm831x_isink1_resources),
1091 .resources = wm831x_isink1_resources,
1092 },
1093 {
1094 .name = "wm831x-isink",
1095 .id = 2,
1096 .num_resources = ARRAY_SIZE(wm831x_isink2_resources),
1097 .resources = wm831x_isink2_resources,
1098 },
1099 {
1100 .name = "wm831x-ldo",
1101 .id = 1,
1102 .num_resources = ARRAY_SIZE(wm831x_ldo1_resources),
1103 .resources = wm831x_ldo1_resources,
1104 },
1105 {
1106 .name = "wm831x-ldo",
1107 .id = 2,
1108 .num_resources = ARRAY_SIZE(wm831x_ldo2_resources),
1109 .resources = wm831x_ldo2_resources,
1110 },
1111 {
1112 .name = "wm831x-ldo",
1113 .id = 3,
1114 .num_resources = ARRAY_SIZE(wm831x_ldo3_resources),
1115 .resources = wm831x_ldo3_resources,
1116 },
1117 {
1118 .name = "wm831x-ldo",
1119 .id = 4,
1120 .num_resources = ARRAY_SIZE(wm831x_ldo4_resources),
1121 .resources = wm831x_ldo4_resources,
1122 },
1123 {
1124 .name = "wm831x-ldo",
1125 .id = 5,
1126 .num_resources = ARRAY_SIZE(wm831x_ldo5_resources),
1127 .resources = wm831x_ldo5_resources,
1128 },
1129 {
1130 .name = "wm831x-ldo",
1131 .id = 6,
1132 .num_resources = ARRAY_SIZE(wm831x_ldo6_resources),
1133 .resources = wm831x_ldo6_resources,
1134 },
1135 {
1136 .name = "wm831x-aldo",
1137 .id = 7,
1138 .num_resources = ARRAY_SIZE(wm831x_ldo7_resources),
1139 .resources = wm831x_ldo7_resources,
1140 },
1141 {
1142 .name = "wm831x-aldo",
1143 .id = 8,
1144 .num_resources = ARRAY_SIZE(wm831x_ldo8_resources),
1145 .resources = wm831x_ldo8_resources,
1146 },
1147 {
1148 .name = "wm831x-aldo",
1149 .id = 9,
1150 .num_resources = ARRAY_SIZE(wm831x_ldo9_resources),
1151 .resources = wm831x_ldo9_resources,
1152 },
1153 {
1154 .name = "wm831x-aldo",
1155 .id = 10,
1156 .num_resources = ARRAY_SIZE(wm831x_ldo10_resources),
1157 .resources = wm831x_ldo10_resources,
1158 },
1159 {
1160 .name = "wm831x-alive-ldo",
1161 .id = 11,
1162 .num_resources = ARRAY_SIZE(wm831x_ldo11_resources),
1163 .resources = wm831x_ldo11_resources,
1164 },
1165 {
1166 .name = "wm831x-on",
1167 .num_resources = ARRAY_SIZE(wm831x_on_resources),
1168 .resources = wm831x_on_resources,
1169 },
1170 {
1171 .name = "wm831x-power",
1172 .num_resources = ARRAY_SIZE(wm831x_power_resources),
1173 .resources = wm831x_power_resources,
1174 },
1175 {
1176 .name = "wm831x-status",
1177 .id = 1,
1178 .num_resources = ARRAY_SIZE(wm831x_status1_resources),
1179 .resources = wm831x_status1_resources,
1180 },
1181 {
1182 .name = "wm831x-status",
1183 .id = 2,
1184 .num_resources = ARRAY_SIZE(wm831x_status2_resources),
1185 .resources = wm831x_status2_resources,
1186 },
1187 {
1188 .name = "wm831x-watchdog",
1189 .num_resources = ARRAY_SIZE(wm831x_wdt_resources),
1190 .resources = wm831x_wdt_resources,
1191 },
1192 };
1193
1194 static struct mfd_cell wm8311_devs[] = {
1195 {
1196 .name = "wm831x-backup",
1197 },
1198 {
1199 .name = "wm831x-buckv",
1200 .id = 1,
1201 .num_resources = ARRAY_SIZE(wm831x_dcdc1_resources),
1202 .resources = wm831x_dcdc1_resources,
1203 },
1204 {
1205 .name = "wm831x-buckv",
1206 .id = 2,
1207 .num_resources = ARRAY_SIZE(wm831x_dcdc2_resources),
1208 .resources = wm831x_dcdc2_resources,
1209 },
1210 {
1211 .name = "wm831x-buckp",
1212 .id = 3,
1213 .num_resources = ARRAY_SIZE(wm831x_dcdc3_resources),
1214 .resources = wm831x_dcdc3_resources,
1215 },
1216 {
1217 .name = "wm831x-boostp",
1218 .id = 4,
1219 .num_resources = ARRAY_SIZE(wm831x_dcdc4_resources),
1220 .resources = wm831x_dcdc4_resources,
1221 },
1222 {
1223 .name = "wm831x-clk",
1224 },
1225 {
1226 .name = "wm831x-epe",
1227 .id = 1,
1228 },
1229 {
1230 .name = "wm831x-epe",
1231 .id = 2,
1232 },
1233 {
1234 .name = "wm831x-gpio",
1235 .num_resources = ARRAY_SIZE(wm831x_gpio_resources),
1236 .resources = wm831x_gpio_resources,
1237 },
1238 {
1239 .name = "wm831x-hwmon",
1240 },
1241 {
1242 .name = "wm831x-isink",
1243 .id = 1,
1244 .num_resources = ARRAY_SIZE(wm831x_isink1_resources),
1245 .resources = wm831x_isink1_resources,
1246 },
1247 {
1248 .name = "wm831x-isink",
1249 .id = 2,
1250 .num_resources = ARRAY_SIZE(wm831x_isink2_resources),
1251 .resources = wm831x_isink2_resources,
1252 },
1253 {
1254 .name = "wm831x-ldo",
1255 .id = 1,
1256 .num_resources = ARRAY_SIZE(wm831x_ldo1_resources),
1257 .resources = wm831x_ldo1_resources,
1258 },
1259 {
1260 .name = "wm831x-ldo",
1261 .id = 2,
1262 .num_resources = ARRAY_SIZE(wm831x_ldo2_resources),
1263 .resources = wm831x_ldo2_resources,
1264 },
1265 {
1266 .name = "wm831x-ldo",
1267 .id = 3,
1268 .num_resources = ARRAY_SIZE(wm831x_ldo3_resources),
1269 .resources = wm831x_ldo3_resources,
1270 },
1271 {
1272 .name = "wm831x-ldo",
1273 .id = 4,
1274 .num_resources = ARRAY_SIZE(wm831x_ldo4_resources),
1275 .resources = wm831x_ldo4_resources,
1276 },
1277 {
1278 .name = "wm831x-ldo",
1279 .id = 5,
1280 .num_resources = ARRAY_SIZE(wm831x_ldo5_resources),
1281 .resources = wm831x_ldo5_resources,
1282 },
1283 {
1284 .name = "wm831x-aldo",
1285 .id = 7,
1286 .num_resources = ARRAY_SIZE(wm831x_ldo7_resources),
1287 .resources = wm831x_ldo7_resources,
1288 },
1289 {
1290 .name = "wm831x-alive-ldo",
1291 .id = 11,
1292 .num_resources = ARRAY_SIZE(wm831x_ldo11_resources),
1293 .resources = wm831x_ldo11_resources,
1294 },
1295 {
1296 .name = "wm831x-on",
1297 .num_resources = ARRAY_SIZE(wm831x_on_resources),
1298 .resources = wm831x_on_resources,
1299 },
1300 {
1301 .name = "wm831x-power",
1302 .num_resources = ARRAY_SIZE(wm831x_power_resources),
1303 .resources = wm831x_power_resources,
1304 },
1305 {
1306 .name = "wm831x-status",
1307 .id = 1,
1308 .num_resources = ARRAY_SIZE(wm831x_status1_resources),
1309 .resources = wm831x_status1_resources,
1310 },
1311 {
1312 .name = "wm831x-status",
1313 .id = 2,
1314 .num_resources = ARRAY_SIZE(wm831x_status2_resources),
1315 .resources = wm831x_status2_resources,
1316 },
1317 {
1318 .name = "wm831x-watchdog",
1319 .num_resources = ARRAY_SIZE(wm831x_wdt_resources),
1320 .resources = wm831x_wdt_resources,
1321 },
1322 };
1323
1324 static struct mfd_cell wm8312_devs[] = {
1325 {
1326 .name = "wm831x-backup",
1327 },
1328 {
1329 .name = "wm831x-buckv",
1330 .id = 1,
1331 .num_resources = ARRAY_SIZE(wm831x_dcdc1_resources),
1332 .resources = wm831x_dcdc1_resources,
1333 },
1334 {
1335 .name = "wm831x-buckv",
1336 .id = 2,
1337 .num_resources = ARRAY_SIZE(wm831x_dcdc2_resources),
1338 .resources = wm831x_dcdc2_resources,
1339 },
1340 {
1341 .name = "wm831x-buckp",
1342 .id = 3,
1343 .num_resources = ARRAY_SIZE(wm831x_dcdc3_resources),
1344 .resources = wm831x_dcdc3_resources,
1345 },
1346 {
1347 .name = "wm831x-boostp",
1348 .id = 4,
1349 .num_resources = ARRAY_SIZE(wm831x_dcdc4_resources),
1350 .resources = wm831x_dcdc4_resources,
1351 },
1352 {
1353 .name = "wm831x-clk",
1354 },
1355 {
1356 .name = "wm831x-epe",
1357 .id = 1,
1358 },
1359 {
1360 .name = "wm831x-epe",
1361 .id = 2,
1362 },
1363 {
1364 .name = "wm831x-gpio",
1365 .num_resources = ARRAY_SIZE(wm831x_gpio_resources),
1366 .resources = wm831x_gpio_resources,
1367 },
1368 {
1369 .name = "wm831x-hwmon",
1370 },
1371 {
1372 .name = "wm831x-isink",
1373 .id = 1,
1374 .num_resources = ARRAY_SIZE(wm831x_isink1_resources),
1375 .resources = wm831x_isink1_resources,
1376 },
1377 {
1378 .name = "wm831x-isink",
1379 .id = 2,
1380 .num_resources = ARRAY_SIZE(wm831x_isink2_resources),
1381 .resources = wm831x_isink2_resources,
1382 },
1383 {
1384 .name = "wm831x-ldo",
1385 .id = 1,
1386 .num_resources = ARRAY_SIZE(wm831x_ldo1_resources),
1387 .resources = wm831x_ldo1_resources,
1388 },
1389 {
1390 .name = "wm831x-ldo",
1391 .id = 2,
1392 .num_resources = ARRAY_SIZE(wm831x_ldo2_resources),
1393 .resources = wm831x_ldo2_resources,
1394 },
1395 {
1396 .name = "wm831x-ldo",
1397 .id = 3,
1398 .num_resources = ARRAY_SIZE(wm831x_ldo3_resources),
1399 .resources = wm831x_ldo3_resources,
1400 },
1401 {
1402 .name = "wm831x-ldo",
1403 .id = 4,
1404 .num_resources = ARRAY_SIZE(wm831x_ldo4_resources),
1405 .resources = wm831x_ldo4_resources,
1406 },
1407 {
1408 .name = "wm831x-ldo",
1409 .id = 5,
1410 .num_resources = ARRAY_SIZE(wm831x_ldo5_resources),
1411 .resources = wm831x_ldo5_resources,
1412 },
1413 {
1414 .name = "wm831x-ldo",
1415 .id = 6,
1416 .num_resources = ARRAY_SIZE(wm831x_ldo6_resources),
1417 .resources = wm831x_ldo6_resources,
1418 },
1419 {
1420 .name = "wm831x-aldo",
1421 .id = 7,
1422 .num_resources = ARRAY_SIZE(wm831x_ldo7_resources),
1423 .resources = wm831x_ldo7_resources,
1424 },
1425 {
1426 .name = "wm831x-aldo",
1427 .id = 8,
1428 .num_resources = ARRAY_SIZE(wm831x_ldo8_resources),
1429 .resources = wm831x_ldo8_resources,
1430 },
1431 {
1432 .name = "wm831x-aldo",
1433 .id = 9,
1434 .num_resources = ARRAY_SIZE(wm831x_ldo9_resources),
1435 .resources = wm831x_ldo9_resources,
1436 },
1437 {
1438 .name = "wm831x-aldo",
1439 .id = 10,
1440 .num_resources = ARRAY_SIZE(wm831x_ldo10_resources),
1441 .resources = wm831x_ldo10_resources,
1442 },
1443 {
1444 .name = "wm831x-alive-ldo",
1445 .id = 11,
1446 .num_resources = ARRAY_SIZE(wm831x_ldo11_resources),
1447 .resources = wm831x_ldo11_resources,
1448 },
1449 {
1450 .name = "wm831x-on",
1451 .num_resources = ARRAY_SIZE(wm831x_on_resources),
1452 .resources = wm831x_on_resources,
1453 },
1454 {
1455 .name = "wm831x-power",
1456 .num_resources = ARRAY_SIZE(wm831x_power_resources),
1457 .resources = wm831x_power_resources,
1458 },
1459 {
1460 .name = "wm831x-status",
1461 .id = 1,
1462 .num_resources = ARRAY_SIZE(wm831x_status1_resources),
1463 .resources = wm831x_status1_resources,
1464 },
1465 {
1466 .name = "wm831x-status",
1467 .id = 2,
1468 .num_resources = ARRAY_SIZE(wm831x_status2_resources),
1469 .resources = wm831x_status2_resources,
1470 },
1471 {
1472 .name = "wm831x-watchdog",
1473 .num_resources = ARRAY_SIZE(wm831x_wdt_resources),
1474 .resources = wm831x_wdt_resources,
1475 },
1476 };
1477
1478 static struct mfd_cell wm8320_devs[] = {
1479 {
1480 .name = "wm831x-backup",
1481 },
1482 {
1483 .name = "wm831x-buckv",
1484 .id = 1,
1485 .num_resources = ARRAY_SIZE(wm831x_dcdc1_resources),
1486 .resources = wm831x_dcdc1_resources,
1487 },
1488 {
1489 .name = "wm831x-buckv",
1490 .id = 2,
1491 .num_resources = ARRAY_SIZE(wm831x_dcdc2_resources),
1492 .resources = wm831x_dcdc2_resources,
1493 },
1494 {
1495 .name = "wm831x-buckp",
1496 .id = 3,
1497 .num_resources = ARRAY_SIZE(wm831x_dcdc3_resources),
1498 .resources = wm831x_dcdc3_resources,
1499 },
1500 {
1501 .name = "wm831x-buckp",
1502 .id = 4,
1503 .num_resources = ARRAY_SIZE(wm8320_dcdc4_buck_resources),
1504 .resources = wm8320_dcdc4_buck_resources,
1505 },
1506 {
1507 .name = "wm831x-clk",
1508 },
1509 {
1510 .name = "wm831x-gpio",
1511 .num_resources = ARRAY_SIZE(wm831x_gpio_resources),
1512 .resources = wm831x_gpio_resources,
1513 },
1514 {
1515 .name = "wm831x-hwmon",
1516 },
1517 {
1518 .name = "wm831x-ldo",
1519 .id = 1,
1520 .num_resources = ARRAY_SIZE(wm831x_ldo1_resources),
1521 .resources = wm831x_ldo1_resources,
1522 },
1523 {
1524 .name = "wm831x-ldo",
1525 .id = 2,
1526 .num_resources = ARRAY_SIZE(wm831x_ldo2_resources),
1527 .resources = wm831x_ldo2_resources,
1528 },
1529 {
1530 .name = "wm831x-ldo",
1531 .id = 3,
1532 .num_resources = ARRAY_SIZE(wm831x_ldo3_resources),
1533 .resources = wm831x_ldo3_resources,
1534 },
1535 {
1536 .name = "wm831x-ldo",
1537 .id = 4,
1538 .num_resources = ARRAY_SIZE(wm831x_ldo4_resources),
1539 .resources = wm831x_ldo4_resources,
1540 },
1541 {
1542 .name = "wm831x-ldo",
1543 .id = 5,
1544 .num_resources = ARRAY_SIZE(wm831x_ldo5_resources),
1545 .resources = wm831x_ldo5_resources,
1546 },
1547 {
1548 .name = "wm831x-ldo",
1549 .id = 6,
1550 .num_resources = ARRAY_SIZE(wm831x_ldo6_resources),
1551 .resources = wm831x_ldo6_resources,
1552 },
1553 {
1554 .name = "wm831x-aldo",
1555 .id = 7,
1556 .num_resources = ARRAY_SIZE(wm831x_ldo7_resources),
1557 .resources = wm831x_ldo7_resources,
1558 },
1559 {
1560 .name = "wm831x-aldo",
1561 .id = 8,
1562 .num_resources = ARRAY_SIZE(wm831x_ldo8_resources),
1563 .resources = wm831x_ldo8_resources,
1564 },
1565 {
1566 .name = "wm831x-aldo",
1567 .id = 9,
1568 .num_resources = ARRAY_SIZE(wm831x_ldo9_resources),
1569 .resources = wm831x_ldo9_resources,
1570 },
1571 {
1572 .name = "wm831x-aldo",
1573 .id = 10,
1574 .num_resources = ARRAY_SIZE(wm831x_ldo10_resources),
1575 .resources = wm831x_ldo10_resources,
1576 },
1577 {
1578 .name = "wm831x-alive-ldo",
1579 .id = 11,
1580 .num_resources = ARRAY_SIZE(wm831x_ldo11_resources),
1581 .resources = wm831x_ldo11_resources,
1582 },
1583 {
1584 .name = "wm831x-on",
1585 .num_resources = ARRAY_SIZE(wm831x_on_resources),
1586 .resources = wm831x_on_resources,
1587 },
1588 {
1589 .name = "wm831x-status",
1590 .id = 1,
1591 .num_resources = ARRAY_SIZE(wm831x_status1_resources),
1592 .resources = wm831x_status1_resources,
1593 },
1594 {
1595 .name = "wm831x-status",
1596 .id = 2,
1597 .num_resources = ARRAY_SIZE(wm831x_status2_resources),
1598 .resources = wm831x_status2_resources,
1599 },
1600 {
1601 .name = "wm831x-watchdog",
1602 .num_resources = ARRAY_SIZE(wm831x_wdt_resources),
1603 .resources = wm831x_wdt_resources,
1604 },
1605 };
1606
1607 static struct mfd_cell touch_devs[] = {
1608 {
1609 .name = "wm831x-touch",
1610 .num_resources = ARRAY_SIZE(wm831x_touch_resources),
1611 .resources = wm831x_touch_resources,
1612 },
1613 };
1614
1615 static struct mfd_cell rtc_devs[] = {
1616 {
1617 .name = "wm831x-rtc",
1618 .num_resources = ARRAY_SIZE(wm831x_rtc_resources),
1619 .resources = wm831x_rtc_resources,
1620 },
1621 };
1622
1623 static struct mfd_cell backlight_devs[] = {
1624 {
1625 .name = "wm831x-backlight",
1626 },
1627 };
1628
1629 struct regmap_config wm831x_regmap_config = {
1630 .reg_bits = 16,
1631 .val_bits = 16,
1632
1633 .cache_type = REGCACHE_RBTREE,
1634
1635 .max_register = WM831X_DBE_CHECK_DATA,
1636 .readable_reg = wm831x_reg_readable,
1637 .writeable_reg = wm831x_reg_writeable,
1638 .volatile_reg = wm831x_reg_volatile,
1639 };
1640 EXPORT_SYMBOL_GPL(wm831x_regmap_config);
1641
1642 /*
1643 * Instantiate the generic non-control parts of the device.
1644 */
1645 int wm831x_device_init(struct wm831x *wm831x, unsigned long id, int irq)
1646 {
1647 struct wm831x_pdata *pdata = wm831x->dev->platform_data;
1648 int rev, wm831x_num;
1649 enum wm831x_parent parent;
1650 int ret, i;
1651
1652 mutex_init(&wm831x->io_lock);
1653 mutex_init(&wm831x->key_lock);
1654 dev_set_drvdata(wm831x->dev, wm831x);
1655 wm831x->soft_shutdown = pdata->soft_shutdown;
1656
1657 ret = wm831x_reg_read(wm831x, WM831X_PARENT_ID);
1658 if (ret < 0) {
1659 dev_err(wm831x->dev, "Failed to read parent ID: %d\n", ret);
1660 goto err;
1661 }
1662 switch (ret) {
1663 case 0x6204:
1664 case 0x6246:
1665 break;
1666 default:
1667 dev_err(wm831x->dev, "Device is not a WM831x: ID %x\n", ret);
1668 ret = -EINVAL;
1669 goto err;
1670 }
1671
1672 ret = wm831x_reg_read(wm831x, WM831X_REVISION);
1673 if (ret < 0) {
1674 dev_err(wm831x->dev, "Failed to read revision: %d\n", ret);
1675 goto err;
1676 }
1677 rev = (ret & WM831X_PARENT_REV_MASK) >> WM831X_PARENT_REV_SHIFT;
1678
1679 ret = wm831x_reg_read(wm831x, WM831X_RESET_ID);
1680 if (ret < 0) {
1681 dev_err(wm831x->dev, "Failed to read device ID: %d\n", ret);
1682 goto err;
1683 }
1684
1685 /* Some engineering samples do not have the ID set, rely on
1686 * the device being registered correctly.
1687 */
1688 if (ret == 0) {
1689 dev_info(wm831x->dev, "Device is an engineering sample\n");
1690 ret = id;
1691 }
1692
1693 switch (ret) {
1694 case WM8310:
1695 parent = WM8310;
1696 wm831x->num_gpio = 16;
1697 wm831x->charger_irq_wake = 1;
1698 if (rev > 0) {
1699 wm831x->has_gpio_ena = 1;
1700 wm831x->has_cs_sts = 1;
1701 }
1702
1703 dev_info(wm831x->dev, "WM8310 revision %c\n", 'A' + rev);
1704 break;
1705
1706 case WM8311:
1707 parent = WM8311;
1708 wm831x->num_gpio = 16;
1709 wm831x->charger_irq_wake = 1;
1710 if (rev > 0) {
1711 wm831x->has_gpio_ena = 1;
1712 wm831x->has_cs_sts = 1;
1713 }
1714
1715 dev_info(wm831x->dev, "WM8311 revision %c\n", 'A' + rev);
1716 break;
1717
1718 case WM8312:
1719 parent = WM8312;
1720 wm831x->num_gpio = 16;
1721 wm831x->charger_irq_wake = 1;
1722 if (rev > 0) {
1723 wm831x->has_gpio_ena = 1;
1724 wm831x->has_cs_sts = 1;
1725 }
1726
1727 dev_info(wm831x->dev, "WM8312 revision %c\n", 'A' + rev);
1728 break;
1729
1730 case WM8320:
1731 parent = WM8320;
1732 wm831x->num_gpio = 12;
1733 dev_info(wm831x->dev, "WM8320 revision %c\n", 'A' + rev);
1734 break;
1735
1736 case WM8321:
1737 parent = WM8321;
1738 wm831x->num_gpio = 12;
1739 dev_info(wm831x->dev, "WM8321 revision %c\n", 'A' + rev);
1740 break;
1741
1742 case WM8325:
1743 parent = WM8325;
1744 wm831x->num_gpio = 12;
1745 dev_info(wm831x->dev, "WM8325 revision %c\n", 'A' + rev);
1746 break;
1747
1748 case WM8326:
1749 parent = WM8326;
1750 wm831x->num_gpio = 12;
1751 dev_info(wm831x->dev, "WM8326 revision %c\n", 'A' + rev);
1752 break;
1753
1754 default:
1755 dev_err(wm831x->dev, "Unknown WM831x device %04x\n", ret);
1756 ret = -EINVAL;
1757 goto err;
1758 }
1759
1760 /* This will need revisiting in future but is OK for all
1761 * current parts.
1762 */
1763 if (parent != id)
1764 dev_warn(wm831x->dev, "Device was registered as a WM%lx\n",
1765 id);
1766
1767 /* Bootstrap the user key */
1768 ret = wm831x_reg_read(wm831x, WM831X_SECURITY_KEY);
1769 if (ret < 0) {
1770 dev_err(wm831x->dev, "Failed to read security key: %d\n", ret);
1771 goto err;
1772 }
1773 if (ret != 0) {
1774 dev_warn(wm831x->dev, "Security key had non-zero value %x\n",
1775 ret);
1776 wm831x_reg_write(wm831x, WM831X_SECURITY_KEY, 0);
1777 }
1778 wm831x->locked = 1;
1779
1780 if (pdata && pdata->pre_init) {
1781 ret = pdata->pre_init(wm831x);
1782 if (ret != 0) {
1783 dev_err(wm831x->dev, "pre_init() failed: %d\n", ret);
1784 goto err;
1785 }
1786 }
1787
1788 if (pdata) {
1789 for (i = 0; i < ARRAY_SIZE(pdata->gpio_defaults); i++) {
1790 if (!pdata->gpio_defaults[i])
1791 continue;
1792
1793 wm831x_reg_write(wm831x,
1794 WM831X_GPIO1_CONTROL + i,
1795 pdata->gpio_defaults[i] & 0xffff);
1796 }
1797 }
1798
1799 /* Multiply by 10 as we have many subdevices of the same type */
1800 if (pdata && pdata->wm831x_num)
1801 wm831x_num = pdata->wm831x_num * 10;
1802 else
1803 wm831x_num = -1;
1804
1805 ret = wm831x_irq_init(wm831x, irq);
1806 if (ret != 0)
1807 goto err;
1808
1809 wm831x_auxadc_init(wm831x);
1810
1811 /* The core device is up, instantiate the subdevices. */
1812 switch (parent) {
1813 case WM8310:
1814 ret = mfd_add_devices(wm831x->dev, wm831x_num,
1815 wm8310_devs, ARRAY_SIZE(wm8310_devs),
1816 NULL, 0, NULL);
1817 break;
1818
1819 case WM8311:
1820 ret = mfd_add_devices(wm831x->dev, wm831x_num,
1821 wm8311_devs, ARRAY_SIZE(wm8311_devs),
1822 NULL, 0, NULL);
1823 if (!pdata || !pdata->disable_touch)
1824 mfd_add_devices(wm831x->dev, wm831x_num,
1825 touch_devs, ARRAY_SIZE(touch_devs),
1826 NULL, 0, NULL);
1827 break;
1828
1829 case WM8312:
1830 ret = mfd_add_devices(wm831x->dev, wm831x_num,
1831 wm8312_devs, ARRAY_SIZE(wm8312_devs),
1832 NULL, 0, NULL);
1833 if (!pdata || !pdata->disable_touch)
1834 mfd_add_devices(wm831x->dev, wm831x_num,
1835 touch_devs, ARRAY_SIZE(touch_devs),
1836 NULL, 0, NULL);
1837 break;
1838
1839 case WM8320:
1840 case WM8321:
1841 case WM8325:
1842 case WM8326:
1843 ret = mfd_add_devices(wm831x->dev, wm831x_num,
1844 wm8320_devs, ARRAY_SIZE(wm8320_devs),
1845 NULL, 0, NULL);
1846 break;
1847
1848 default:
1849 /* If this happens the bus probe function is buggy */
1850 BUG();
1851 }
1852
1853 if (ret != 0) {
1854 dev_err(wm831x->dev, "Failed to add children\n");
1855 goto err_irq;
1856 }
1857
1858 /* The RTC can only be used if the 32.768kHz crystal is
1859 * enabled; this can't be controlled by software at runtime.
1860 */
1861 ret = wm831x_reg_read(wm831x, WM831X_CLOCK_CONTROL_2);
1862 if (ret < 0) {
1863 dev_err(wm831x->dev, "Failed to read clock status: %d\n", ret);
1864 goto err_irq;
1865 }
1866
1867 if (ret & WM831X_XTAL_ENA) {
1868 ret = mfd_add_devices(wm831x->dev, wm831x_num,
1869 rtc_devs, ARRAY_SIZE(rtc_devs),
1870 NULL, 0, NULL);
1871 if (ret != 0) {
1872 dev_err(wm831x->dev, "Failed to add RTC: %d\n", ret);
1873 goto err_irq;
1874 }
1875 } else {
1876 dev_info(wm831x->dev, "32.768kHz clock disabled, no RTC\n");
1877 }
1878
1879 if (pdata && pdata->backlight) {
1880 /* Treat errors as non-critical */
1881 ret = mfd_add_devices(wm831x->dev, wm831x_num, backlight_devs,
1882 ARRAY_SIZE(backlight_devs), NULL,
1883 0, NULL);
1884 if (ret < 0)
1885 dev_err(wm831x->dev, "Failed to add backlight: %d\n",
1886 ret);
1887 }
1888
1889 wm831x_otp_init(wm831x);
1890
1891 if (pdata && pdata->post_init) {
1892 ret = pdata->post_init(wm831x);
1893 if (ret != 0) {
1894 dev_err(wm831x->dev, "post_init() failed: %d\n", ret);
1895 goto err_irq;
1896 }
1897 }
1898
1899 return 0;
1900
1901 err_irq:
1902 wm831x_irq_exit(wm831x);
1903 err:
1904 mfd_remove_devices(wm831x->dev);
1905 return ret;
1906 }
1907
1908 void wm831x_device_exit(struct wm831x *wm831x)
1909 {
1910 wm831x_otp_exit(wm831x);
1911 mfd_remove_devices(wm831x->dev);
1912 free_irq(wm831x_irq(wm831x, WM831X_IRQ_AUXADC_DATA), wm831x);
1913 wm831x_irq_exit(wm831x);
1914 }
1915
1916 int wm831x_device_suspend(struct wm831x *wm831x)
1917 {
1918 int reg, mask;
1919
1920 /* If the charger IRQs are a wake source then make sure we ack
1921 * them even if they're not actively being used (eg, no power
1922 * driver or no IRQ line wired up) then acknowledge the
1923 * interrupts otherwise suspend won't last very long.
1924 */
1925 if (wm831x->charger_irq_wake) {
1926 reg = wm831x_reg_read(wm831x, WM831X_INTERRUPT_STATUS_2_MASK);
1927
1928 mask = WM831X_CHG_BATT_HOT_EINT |
1929 WM831X_CHG_BATT_COLD_EINT |
1930 WM831X_CHG_BATT_FAIL_EINT |
1931 WM831X_CHG_OV_EINT | WM831X_CHG_END_EINT |
1932 WM831X_CHG_TO_EINT | WM831X_CHG_MODE_EINT |
1933 WM831X_CHG_START_EINT;
1934
1935 /* If any of the interrupts are masked read the statuses */
1936 if (reg & mask)
1937 reg = wm831x_reg_read(wm831x,
1938 WM831X_INTERRUPT_STATUS_2);
1939
1940 if (reg & mask) {
1941 dev_info(wm831x->dev,
1942 "Acknowledging masked charger IRQs: %x\n",
1943 reg & mask);
1944 wm831x_reg_write(wm831x, WM831X_INTERRUPT_STATUS_2,
1945 reg & mask);
1946 }
1947 }
1948
1949 return 0;
1950 }
1951
1952 void wm831x_device_shutdown(struct wm831x *wm831x)
1953 {
1954 if (wm831x->soft_shutdown) {
1955 dev_info(wm831x->dev, "Initiating shutdown...\n");
1956 wm831x_set_bits(wm831x, WM831X_POWER_STATE, WM831X_CHIP_ON, 0);
1957 }
1958 }
1959 EXPORT_SYMBOL_GPL(wm831x_device_shutdown);
1960
1961 MODULE_DESCRIPTION("Core support for the WM831X AudioPlus PMIC");
1962 MODULE_LICENSE("GPL");
1963 MODULE_AUTHOR("Mark Brown");
Linux ARM platform port for MOXA ART SoC