1 // SPDX-License-Identifier: GPL-2.0-only
2 /*
3 * Arizona core driver
4 *
5 * Copyright 2012 Wolfson Microelectronics plc
6 *
7 * Author: Mark Brown <broonie@opensource.wolfsonmicro.com>
8 */
9
10 #include <linux/clk.h>
11 #include <linux/delay.h>
12 #include <linux/err.h>
13 #include <linux/gpio/consumer.h>
14 #include <linux/interrupt.h>
15 #include <linux/mfd/core.h>
16 #include <linux/module.h>
17 #include <linux/of.h>
18 #include <linux/of_device.h>
19 #include <linux/pm_runtime.h>
20 #include <linux/regmap.h>
21 #include <linux/regulator/consumer.h>
22 #include <linux/regulator/machine.h>
23 #include <linux/slab.h>
24 #include <linux/ktime.h>
25 #include <linux/platform_device.h>
26
27 #include <linux/mfd/arizona/core.h>
28 #include <linux/mfd/arizona/registers.h>
29
30 #include "arizona.h"
31
32 static const char * const wm5102_core_supplies[] = {
33 "AVDD",
34 "DBVDD1",
35 };
36
arizona_clk32k_enable(struct arizona * arizona)37 int arizona_clk32k_enable(struct arizona *arizona)
38 {
39 int ret = 0;
40
41 mutex_lock(&arizona->clk_lock);
42
43 arizona->clk32k_ref++;
44
45 if (arizona->clk32k_ref == 1) {
46 switch (arizona->pdata.clk32k_src) {
47 case ARIZONA_32KZ_MCLK1:
48 ret = pm_runtime_get_sync(arizona->dev);
49 if (ret != 0)
50 goto err_ref;
51 ret = clk_prepare_enable(arizona->mclk[ARIZONA_MCLK1]);
52 if (ret != 0) {
53 pm_runtime_put_sync(arizona->dev);
54 goto err_ref;
55 }
56 break;
57 case ARIZONA_32KZ_MCLK2:
58 ret = clk_prepare_enable(arizona->mclk[ARIZONA_MCLK2]);
59 if (ret != 0)
60 goto err_ref;
61 break;
62 }
63
64 ret = regmap_update_bits(arizona->regmap, ARIZONA_CLOCK_32K_1,
65 ARIZONA_CLK_32K_ENA,
66 ARIZONA_CLK_32K_ENA);
67 }
68
69 err_ref:
70 if (ret != 0)
71 arizona->clk32k_ref--;
72
73 mutex_unlock(&arizona->clk_lock);
74
75 return ret;
76 }
77 EXPORT_SYMBOL_GPL(arizona_clk32k_enable);
78
arizona_clk32k_disable(struct arizona * arizona)79 int arizona_clk32k_disable(struct arizona *arizona)
80 {
81 mutex_lock(&arizona->clk_lock);
82
83 BUG_ON(arizona->clk32k_ref <= 0);
84
85 arizona->clk32k_ref--;
86
87 if (arizona->clk32k_ref == 0) {
88 regmap_update_bits(arizona->regmap, ARIZONA_CLOCK_32K_1,
89 ARIZONA_CLK_32K_ENA, 0);
90
91 switch (arizona->pdata.clk32k_src) {
92 case ARIZONA_32KZ_MCLK1:
93 pm_runtime_put_sync(arizona->dev);
94 clk_disable_unprepare(arizona->mclk[ARIZONA_MCLK1]);
95 break;
96 case ARIZONA_32KZ_MCLK2:
97 clk_disable_unprepare(arizona->mclk[ARIZONA_MCLK2]);
98 break;
99 }
100 }
101
102 mutex_unlock(&arizona->clk_lock);
103
104 return 0;
105 }
106 EXPORT_SYMBOL_GPL(arizona_clk32k_disable);
107
arizona_clkgen_err(int irq,void * data)108 static irqreturn_t arizona_clkgen_err(int irq, void *data)
109 {
110 struct arizona *arizona = data;
111
112 dev_err(arizona->dev, "CLKGEN error\n");
113
114 return IRQ_HANDLED;
115 }
116
arizona_underclocked(int irq,void * data)117 static irqreturn_t arizona_underclocked(int irq, void *data)
118 {
119 struct arizona *arizona = data;
120 unsigned int val;
121 int ret;
122
123 ret = regmap_read(arizona->regmap, ARIZONA_INTERRUPT_RAW_STATUS_8,
124 &val);
125 if (ret != 0) {
126 dev_err(arizona->dev, "Failed to read underclock status: %d\n",
127 ret);
128 return IRQ_NONE;
129 }
130
131 if (val & ARIZONA_AIF3_UNDERCLOCKED_STS)
132 dev_err(arizona->dev, "AIF3 underclocked\n");
133 if (val & ARIZONA_AIF2_UNDERCLOCKED_STS)
134 dev_err(arizona->dev, "AIF2 underclocked\n");
135 if (val & ARIZONA_AIF1_UNDERCLOCKED_STS)
136 dev_err(arizona->dev, "AIF1 underclocked\n");
137 if (val & ARIZONA_ISRC3_UNDERCLOCKED_STS)
138 dev_err(arizona->dev, "ISRC3 underclocked\n");
139 if (val & ARIZONA_ISRC2_UNDERCLOCKED_STS)
140 dev_err(arizona->dev, "ISRC2 underclocked\n");
141 if (val & ARIZONA_ISRC1_UNDERCLOCKED_STS)
142 dev_err(arizona->dev, "ISRC1 underclocked\n");
143 if (val & ARIZONA_FX_UNDERCLOCKED_STS)
144 dev_err(arizona->dev, "FX underclocked\n");
145 if (val & ARIZONA_ASRC_UNDERCLOCKED_STS)
146 dev_err(arizona->dev, "ASRC underclocked\n");
147 if (val & ARIZONA_DAC_UNDERCLOCKED_STS)
148 dev_err(arizona->dev, "DAC underclocked\n");
149 if (val & ARIZONA_ADC_UNDERCLOCKED_STS)
150 dev_err(arizona->dev, "ADC underclocked\n");
151 if (val & ARIZONA_MIXER_UNDERCLOCKED_STS)
152 dev_err(arizona->dev, "Mixer dropped sample\n");
153
154 return IRQ_HANDLED;
155 }
156
arizona_overclocked(int irq,void * data)157 static irqreturn_t arizona_overclocked(int irq, void *data)
158 {
159 struct arizona *arizona = data;
160 unsigned int val[3];
161 int ret;
162
163 ret = regmap_bulk_read(arizona->regmap, ARIZONA_INTERRUPT_RAW_STATUS_6,
164 &val[0], 3);
165 if (ret != 0) {
166 dev_err(arizona->dev, "Failed to read overclock status: %d\n",
167 ret);
168 return IRQ_NONE;
169 }
170
171 switch (arizona->type) {
172 case WM8998:
173 case WM1814:
174 /* Some bits are shifted on WM8998,
175 * rearrange to match the standard bit layout
176 */
177 val[0] = ((val[0] & 0x60e0) >> 1) |
178 ((val[0] & 0x1e00) >> 2) |
179 (val[0] & 0x000f);
180 break;
181 default:
182 break;
183 }
184
185 if (val[0] & ARIZONA_PWM_OVERCLOCKED_STS)
186 dev_err(arizona->dev, "PWM overclocked\n");
187 if (val[0] & ARIZONA_FX_CORE_OVERCLOCKED_STS)
188 dev_err(arizona->dev, "FX core overclocked\n");
189 if (val[0] & ARIZONA_DAC_SYS_OVERCLOCKED_STS)
190 dev_err(arizona->dev, "DAC SYS overclocked\n");
191 if (val[0] & ARIZONA_DAC_WARP_OVERCLOCKED_STS)
192 dev_err(arizona->dev, "DAC WARP overclocked\n");
193 if (val[0] & ARIZONA_ADC_OVERCLOCKED_STS)
194 dev_err(arizona->dev, "ADC overclocked\n");
195 if (val[0] & ARIZONA_MIXER_OVERCLOCKED_STS)
196 dev_err(arizona->dev, "Mixer overclocked\n");
197 if (val[0] & ARIZONA_AIF3_SYNC_OVERCLOCKED_STS)
198 dev_err(arizona->dev, "AIF3 overclocked\n");
199 if (val[0] & ARIZONA_AIF2_SYNC_OVERCLOCKED_STS)
200 dev_err(arizona->dev, "AIF2 overclocked\n");
201 if (val[0] & ARIZONA_AIF1_SYNC_OVERCLOCKED_STS)
202 dev_err(arizona->dev, "AIF1 overclocked\n");
203 if (val[0] & ARIZONA_PAD_CTRL_OVERCLOCKED_STS)
204 dev_err(arizona->dev, "Pad control overclocked\n");
205
206 if (val[1] & ARIZONA_SLIMBUS_SUBSYS_OVERCLOCKED_STS)
207 dev_err(arizona->dev, "Slimbus subsystem overclocked\n");
208 if (val[1] & ARIZONA_SLIMBUS_ASYNC_OVERCLOCKED_STS)
209 dev_err(arizona->dev, "Slimbus async overclocked\n");
210 if (val[1] & ARIZONA_SLIMBUS_SYNC_OVERCLOCKED_STS)
211 dev_err(arizona->dev, "Slimbus sync overclocked\n");
212 if (val[1] & ARIZONA_ASRC_ASYNC_SYS_OVERCLOCKED_STS)
213 dev_err(arizona->dev, "ASRC async system overclocked\n");
214 if (val[1] & ARIZONA_ASRC_ASYNC_WARP_OVERCLOCKED_STS)
215 dev_err(arizona->dev, "ASRC async WARP overclocked\n");
216 if (val[1] & ARIZONA_ASRC_SYNC_SYS_OVERCLOCKED_STS)
217 dev_err(arizona->dev, "ASRC sync system overclocked\n");
218 if (val[1] & ARIZONA_ASRC_SYNC_WARP_OVERCLOCKED_STS)
219 dev_err(arizona->dev, "ASRC sync WARP overclocked\n");
220 if (val[1] & ARIZONA_ADSP2_1_OVERCLOCKED_STS)
221 dev_err(arizona->dev, "DSP1 overclocked\n");
222 if (val[1] & ARIZONA_ISRC3_OVERCLOCKED_STS)
223 dev_err(arizona->dev, "ISRC3 overclocked\n");
224 if (val[1] & ARIZONA_ISRC2_OVERCLOCKED_STS)
225 dev_err(arizona->dev, "ISRC2 overclocked\n");
226 if (val[1] & ARIZONA_ISRC1_OVERCLOCKED_STS)
227 dev_err(arizona->dev, "ISRC1 overclocked\n");
228
229 if (val[2] & ARIZONA_SPDIF_OVERCLOCKED_STS)
230 dev_err(arizona->dev, "SPDIF overclocked\n");
231
232 return IRQ_HANDLED;
233 }
234
235 #define ARIZONA_REG_POLL_DELAY_US 7500
236
arizona_poll_reg_delay(ktime_t timeout)237 static inline bool arizona_poll_reg_delay(ktime_t timeout)
238 {
239 if (ktime_compare(ktime_get(), timeout) > 0)
240 return false;
241
242 usleep_range(ARIZONA_REG_POLL_DELAY_US / 2, ARIZONA_REG_POLL_DELAY_US);
243
244 return true;
245 }
246
arizona_poll_reg(struct arizona * arizona,int timeout_ms,unsigned int reg,unsigned int mask,unsigned int target)247 static int arizona_poll_reg(struct arizona *arizona,
248 int timeout_ms, unsigned int reg,
249 unsigned int mask, unsigned int target)
250 {
251 ktime_t timeout = ktime_add_us(ktime_get(), timeout_ms * USEC_PER_MSEC);
252 unsigned int val = 0;
253 int ret;
254
255 do {
256 ret = regmap_read(arizona->regmap, reg, &val);
257
258 if ((val & mask) == target)
259 return 0;
260 } while (arizona_poll_reg_delay(timeout));
261
262 if (ret) {
263 dev_err(arizona->dev, "Failed polling reg 0x%x: %d\n",
264 reg, ret);
265 return ret;
266 }
267
268 dev_err(arizona->dev, "Polling reg 0x%x timed out: %x\n", reg, val);
269 return -ETIMEDOUT;
270 }
271
arizona_wait_for_boot(struct arizona * arizona)272 static int arizona_wait_for_boot(struct arizona *arizona)
273 {
274 int ret;
275
276 /*
277 * We can't use an interrupt as we need to runtime resume to do so,
278 * we won't race with the interrupt handler as it'll be blocked on
279 * runtime resume.
280 */
281 ret = arizona_poll_reg(arizona, 30, ARIZONA_INTERRUPT_RAW_STATUS_5,
282 ARIZONA_BOOT_DONE_STS, ARIZONA_BOOT_DONE_STS);
283
284 if (!ret)
285 regmap_write(arizona->regmap, ARIZONA_INTERRUPT_STATUS_5,
286 ARIZONA_BOOT_DONE_STS);
287
288 pm_runtime_mark_last_busy(arizona->dev);
289
290 return ret;
291 }
292
arizona_enable_reset(struct arizona * arizona)293 static inline void arizona_enable_reset(struct arizona *arizona)
294 {
295 if (arizona->pdata.reset)
296 gpiod_set_raw_value_cansleep(arizona->pdata.reset, 0);
297 }
298
arizona_disable_reset(struct arizona * arizona)299 static void arizona_disable_reset(struct arizona *arizona)
300 {
301 if (arizona->pdata.reset) {
302 switch (arizona->type) {
303 case WM5110:
304 case WM8280:
305 /* Meet requirements for minimum reset duration */
306 usleep_range(5000, 10000);
307 break;
308 default:
309 break;
310 }
311
312 gpiod_set_raw_value_cansleep(arizona->pdata.reset, 1);
313 usleep_range(1000, 5000);
314 }
315 }
316
317 struct arizona_sysclk_state {
318 unsigned int fll;
319 unsigned int sysclk;
320 };
321
arizona_enable_freerun_sysclk(struct arizona * arizona,struct arizona_sysclk_state * state)322 static int arizona_enable_freerun_sysclk(struct arizona *arizona,
323 struct arizona_sysclk_state *state)
324 {
325 int ret, err;
326
327 /* Cache existing FLL and SYSCLK settings */
328 ret = regmap_read(arizona->regmap, ARIZONA_FLL1_CONTROL_1, &state->fll);
329 if (ret) {
330 dev_err(arizona->dev, "Failed to cache FLL settings: %d\n",
331 ret);
332 return ret;
333 }
334 ret = regmap_read(arizona->regmap, ARIZONA_SYSTEM_CLOCK_1,
335 &state->sysclk);
336 if (ret) {
337 dev_err(arizona->dev, "Failed to cache SYSCLK settings: %d\n",
338 ret);
339 return ret;
340 }
341
342 /* Start up SYSCLK using the FLL in free running mode */
343 ret = regmap_write(arizona->regmap, ARIZONA_FLL1_CONTROL_1,
344 ARIZONA_FLL1_ENA | ARIZONA_FLL1_FREERUN);
345 if (ret) {
346 dev_err(arizona->dev,
347 "Failed to start FLL in freerunning mode: %d\n",
348 ret);
349 return ret;
350 }
351 ret = arizona_poll_reg(arizona, 180, ARIZONA_INTERRUPT_RAW_STATUS_5,
352 ARIZONA_FLL1_CLOCK_OK_STS,
353 ARIZONA_FLL1_CLOCK_OK_STS);
354 if (ret)
355 goto err_fll;
356
357 ret = regmap_write(arizona->regmap, ARIZONA_SYSTEM_CLOCK_1, 0x0144);
358 if (ret) {
359 dev_err(arizona->dev, "Failed to start SYSCLK: %d\n", ret);
360 goto err_fll;
361 }
362
363 return 0;
364
365 err_fll:
366 err = regmap_write(arizona->regmap, ARIZONA_FLL1_CONTROL_1, state->fll);
367 if (err)
368 dev_err(arizona->dev,
369 "Failed to re-apply old FLL settings: %d\n", err);
370
371 return ret;
372 }
373
arizona_disable_freerun_sysclk(struct arizona * arizona,struct arizona_sysclk_state * state)374 static int arizona_disable_freerun_sysclk(struct arizona *arizona,
375 struct arizona_sysclk_state *state)
376 {
377 int ret;
378
379 ret = regmap_write(arizona->regmap, ARIZONA_SYSTEM_CLOCK_1,
380 state->sysclk);
381 if (ret) {
382 dev_err(arizona->dev,
383 "Failed to re-apply old SYSCLK settings: %d\n", ret);
384 return ret;
385 }
386
387 ret = regmap_write(arizona->regmap, ARIZONA_FLL1_CONTROL_1, state->fll);
388 if (ret) {
389 dev_err(arizona->dev,
390 "Failed to re-apply old FLL settings: %d\n", ret);
391 return ret;
392 }
393
394 return 0;
395 }
396
wm5102_apply_hardware_patch(struct arizona * arizona)397 static int wm5102_apply_hardware_patch(struct arizona *arizona)
398 {
399 struct arizona_sysclk_state state;
400 int err, ret;
401
402 ret = arizona_enable_freerun_sysclk(arizona, &state);
403 if (ret)
404 return ret;
405
406 /* Start the write sequencer and wait for it to finish */
407 ret = regmap_write(arizona->regmap, ARIZONA_WRITE_SEQUENCER_CTRL_0,
408 ARIZONA_WSEQ_ENA | ARIZONA_WSEQ_START | 160);
409 if (ret) {
410 dev_err(arizona->dev, "Failed to start write sequencer: %d\n",
411 ret);
412 goto err;
413 }
414
415 ret = arizona_poll_reg(arizona, 30, ARIZONA_WRITE_SEQUENCER_CTRL_1,
416 ARIZONA_WSEQ_BUSY, 0);
417 if (ret)
418 regmap_write(arizona->regmap, ARIZONA_WRITE_SEQUENCER_CTRL_0,
419 ARIZONA_WSEQ_ABORT);
420
421 err:
422 err = arizona_disable_freerun_sysclk(arizona, &state);
423
424 return ret ?: err;
425 }
426
427 /*
428 * Register patch to some of the CODECs internal write sequences
429 * to ensure a clean exit from the low power sleep state.
430 */
431 static const struct reg_sequence wm5110_sleep_patch[] = {
432 { 0x337A, 0xC100 },
433 { 0x337B, 0x0041 },
434 { 0x3300, 0xA210 },
435 { 0x3301, 0x050C },
436 };
437
wm5110_apply_sleep_patch(struct arizona * arizona)438 static int wm5110_apply_sleep_patch(struct arizona *arizona)
439 {
440 struct arizona_sysclk_state state;
441 int err, ret;
442
443 ret = arizona_enable_freerun_sysclk(arizona, &state);
444 if (ret)
445 return ret;
446
447 ret = regmap_multi_reg_write_bypassed(arizona->regmap,
448 wm5110_sleep_patch,
449 ARRAY_SIZE(wm5110_sleep_patch));
450
451 err = arizona_disable_freerun_sysclk(arizona, &state);
452
453 return ret ?: err;
454 }
455
wm5102_clear_write_sequencer(struct arizona * arizona)456 static int wm5102_clear_write_sequencer(struct arizona *arizona)
457 {
458 int ret;
459
460 ret = regmap_write(arizona->regmap, ARIZONA_WRITE_SEQUENCER_CTRL_3,
461 0x0);
462 if (ret) {
463 dev_err(arizona->dev,
464 "Failed to clear write sequencer state: %d\n", ret);
465 return ret;
466 }
467
468 arizona_enable_reset(arizona);
469 regulator_disable(arizona->dcvdd);
470
471 msleep(20);
472
473 ret = regulator_enable(arizona->dcvdd);
474 if (ret) {
475 dev_err(arizona->dev, "Failed to re-enable DCVDD: %d\n", ret);
476 return ret;
477 }
478 arizona_disable_reset(arizona);
479
480 return 0;
481 }
482
483 #ifdef CONFIG_PM
arizona_isolate_dcvdd(struct arizona * arizona)484 static int arizona_isolate_dcvdd(struct arizona *arizona)
485 {
486 int ret;
487
488 ret = regmap_update_bits(arizona->regmap,
489 ARIZONA_ISOLATION_CONTROL,
490 ARIZONA_ISOLATE_DCVDD1,
491 ARIZONA_ISOLATE_DCVDD1);
492 if (ret != 0)
493 dev_err(arizona->dev, "Failed to isolate DCVDD: %d\n", ret);
494
495 return ret;
496 }
497
arizona_connect_dcvdd(struct arizona * arizona)498 static int arizona_connect_dcvdd(struct arizona *arizona)
499 {
500 int ret;
501
502 ret = regmap_update_bits(arizona->regmap,
503 ARIZONA_ISOLATION_CONTROL,
504 ARIZONA_ISOLATE_DCVDD1, 0);
505 if (ret != 0)
506 dev_err(arizona->dev, "Failed to connect DCVDD: %d\n", ret);
507
508 return ret;
509 }
510
arizona_is_jack_det_active(struct arizona * arizona)511 static int arizona_is_jack_det_active(struct arizona *arizona)
512 {
513 unsigned int val;
514 int ret;
515
516 ret = regmap_read(arizona->regmap, ARIZONA_JACK_DETECT_ANALOGUE, &val);
517 if (ret) {
518 dev_err(arizona->dev,
519 "Failed to check jack det status: %d\n", ret);
520 return ret;
521 } else if (val & ARIZONA_JD1_ENA) {
522 return 1;
523 } else {
524 return 0;
525 }
526 }
527
arizona_runtime_resume(struct device * dev)528 static int arizona_runtime_resume(struct device *dev)
529 {
530 struct arizona *arizona = dev_get_drvdata(dev);
531 int ret;
532
533 dev_dbg(arizona->dev, "Leaving AoD mode\n");
534
535 if (arizona->has_fully_powered_off) {
536 dev_dbg(arizona->dev, "Re-enabling core supplies\n");
537
538 ret = regulator_bulk_enable(arizona->num_core_supplies,
539 arizona->core_supplies);
540 if (ret) {
541 dev_err(dev, "Failed to enable core supplies: %d\n",
542 ret);
543 return ret;
544 }
545 }
546
547 ret = regulator_enable(arizona->dcvdd);
548 if (ret != 0) {
549 dev_err(arizona->dev, "Failed to enable DCVDD: %d\n", ret);
550 if (arizona->has_fully_powered_off)
551 regulator_bulk_disable(arizona->num_core_supplies,
552 arizona->core_supplies);
553 return ret;
554 }
555
556 if (arizona->has_fully_powered_off) {
557 arizona_disable_reset(arizona);
558 enable_irq(arizona->irq);
559 arizona->has_fully_powered_off = false;
560 }
561
562 regcache_cache_only(arizona->regmap, false);
563
564 switch (arizona->type) {
565 case WM5102:
566 if (arizona->external_dcvdd) {
567 ret = arizona_connect_dcvdd(arizona);
568 if (ret != 0)
569 goto err;
570 }
571
572 ret = wm5102_patch(arizona);
573 if (ret != 0) {
574 dev_err(arizona->dev, "Failed to apply patch: %d\n",
575 ret);
576 goto err;
577 }
578
579 ret = wm5102_apply_hardware_patch(arizona);
580 if (ret) {
581 dev_err(arizona->dev,
582 "Failed to apply hardware patch: %d\n",
583 ret);
584 goto err;
585 }
586 break;
587 case WM5110:
588 case WM8280:
589 ret = arizona_wait_for_boot(arizona);
590 if (ret)
591 goto err;
592
593 if (arizona->external_dcvdd) {
594 ret = arizona_connect_dcvdd(arizona);
595 if (ret != 0)
596 goto err;
597 } else {
598 /*
599 * As this is only called for the internal regulator
600 * (where we know voltage ranges available) it is ok
601 * to request an exact range.
602 */
603 ret = regulator_set_voltage(arizona->dcvdd,
604 1200000, 1200000);
605 if (ret < 0) {
606 dev_err(arizona->dev,
607 "Failed to set resume voltage: %d\n",
608 ret);
609 goto err;
610 }
611 }
612
613 ret = wm5110_apply_sleep_patch(arizona);
614 if (ret) {
615 dev_err(arizona->dev,
616 "Failed to re-apply sleep patch: %d\n",
617 ret);
618 goto err;
619 }
620 break;
621 case WM1831:
622 case CS47L24:
623 ret = arizona_wait_for_boot(arizona);
624 if (ret != 0)
625 goto err;
626 break;
627 default:
628 ret = arizona_wait_for_boot(arizona);
629 if (ret != 0)
630 goto err;
631
632 if (arizona->external_dcvdd) {
633 ret = arizona_connect_dcvdd(arizona);
634 if (ret != 0)
635 goto err;
636 }
637 break;
638 }
639
640 ret = regcache_sync(arizona->regmap);
641 if (ret != 0) {
642 dev_err(arizona->dev, "Failed to restore register cache\n");
643 goto err;
644 }
645
646 return 0;
647
648 err:
649 regcache_cache_only(arizona->regmap, true);
650 regulator_disable(arizona->dcvdd);
651 return ret;
652 }
653
arizona_runtime_suspend(struct device * dev)654 static int arizona_runtime_suspend(struct device *dev)
655 {
656 struct arizona *arizona = dev_get_drvdata(dev);
657 int jd_active = 0;
658 int ret;
659
660 dev_dbg(arizona->dev, "Entering AoD mode\n");
661
662 switch (arizona->type) {
663 case WM5110:
664 case WM8280:
665 jd_active = arizona_is_jack_det_active(arizona);
666 if (jd_active < 0)
667 return jd_active;
668
669 if (arizona->external_dcvdd) {
670 ret = arizona_isolate_dcvdd(arizona);
671 if (ret != 0)
672 return ret;
673 } else {
674 /*
675 * As this is only called for the internal regulator
676 * (where we know voltage ranges available) it is ok
677 * to request an exact range.
678 */
679 ret = regulator_set_voltage(arizona->dcvdd,
680 1175000, 1175000);
681 if (ret < 0) {
682 dev_err(arizona->dev,
683 "Failed to set suspend voltage: %d\n",
684 ret);
685 return ret;
686 }
687 }
688 break;
689 case WM5102:
690 jd_active = arizona_is_jack_det_active(arizona);
691 if (jd_active < 0)
692 return jd_active;
693
694 if (arizona->external_dcvdd) {
695 ret = arizona_isolate_dcvdd(arizona);
696 if (ret != 0)
697 return ret;
698 }
699
700 if (!jd_active) {
701 ret = regmap_write(arizona->regmap,
702 ARIZONA_WRITE_SEQUENCER_CTRL_3, 0x0);
703 if (ret) {
704 dev_err(arizona->dev,
705 "Failed to clear write sequencer: %d\n",
706 ret);
707 return ret;
708 }
709 }
710 break;
711 case WM1831:
712 case CS47L24:
713 break;
714 default:
715 jd_active = arizona_is_jack_det_active(arizona);
716 if (jd_active < 0)
717 return jd_active;
718
719 if (arizona->external_dcvdd) {
720 ret = arizona_isolate_dcvdd(arizona);
721 if (ret != 0)
722 return ret;
723 }
724 break;
725 }
726
727 regcache_cache_only(arizona->regmap, true);
728 regcache_mark_dirty(arizona->regmap);
729 regulator_disable(arizona->dcvdd);
730
731 /* Allow us to completely power down if no jack detection */
732 if (!jd_active) {
733 dev_dbg(arizona->dev, "Fully powering off\n");
734
735 arizona->has_fully_powered_off = true;
736
737 disable_irq_nosync(arizona->irq);
738 arizona_enable_reset(arizona);
739 regulator_bulk_disable(arizona->num_core_supplies,
740 arizona->core_supplies);
741 }
742
743 return 0;
744 }
745 #endif
746
747 #ifdef CONFIG_PM_SLEEP
arizona_suspend(struct device * dev)748 static int arizona_suspend(struct device *dev)
749 {
750 struct arizona *arizona = dev_get_drvdata(dev);
751
752 dev_dbg(arizona->dev, "Suspend, disabling IRQ\n");
753 disable_irq(arizona->irq);
754
755 return 0;
756 }
757
arizona_suspend_noirq(struct device * dev)758 static int arizona_suspend_noirq(struct device *dev)
759 {
760 struct arizona *arizona = dev_get_drvdata(dev);
761
762 dev_dbg(arizona->dev, "Late suspend, reenabling IRQ\n");
763 enable_irq(arizona->irq);
764
765 return 0;
766 }
767
arizona_resume_noirq(struct device * dev)768 static int arizona_resume_noirq(struct device *dev)
769 {
770 struct arizona *arizona = dev_get_drvdata(dev);
771
772 dev_dbg(arizona->dev, "Early resume, disabling IRQ\n");
773 disable_irq(arizona->irq);
774
775 return 0;
776 }
777
arizona_resume(struct device * dev)778 static int arizona_resume(struct device *dev)
779 {
780 struct arizona *arizona = dev_get_drvdata(dev);
781
782 dev_dbg(arizona->dev, "Resume, reenabling IRQ\n");
783 enable_irq(arizona->irq);
784
785 return 0;
786 }
787 #endif
788
789 const struct dev_pm_ops arizona_pm_ops = {
790 SET_RUNTIME_PM_OPS(arizona_runtime_suspend,
791 arizona_runtime_resume,
792 NULL)
793 SET_SYSTEM_SLEEP_PM_OPS(arizona_suspend, arizona_resume)
794 SET_NOIRQ_SYSTEM_SLEEP_PM_OPS(arizona_suspend_noirq,
795 arizona_resume_noirq)
796 };
797 EXPORT_SYMBOL_GPL(arizona_pm_ops);
798
799 #ifdef CONFIG_OF
arizona_of_get_type(struct device * dev)800 unsigned long arizona_of_get_type(struct device *dev)
801 {
802 const struct of_device_id *id = of_match_device(arizona_of_match, dev);
803
804 if (id)
805 return (unsigned long)id->data;
806 else
807 return 0;
808 }
809 EXPORT_SYMBOL_GPL(arizona_of_get_type);
810
arizona_of_get_core_pdata(struct arizona * arizona)811 static int arizona_of_get_core_pdata(struct arizona *arizona)
812 {
813 struct arizona_pdata *pdata = &arizona->pdata;
814 int ret, i;
815
816 /* Handle old non-standard DT binding */
817 pdata->reset = devm_gpiod_get_from_of_node(arizona->dev,
818 arizona->dev->of_node,
819 "wlf,reset", 0,
820 GPIOD_OUT_LOW,
821 "arizona /RESET");
822 if (IS_ERR(pdata->reset)) {
823 ret = PTR_ERR(pdata->reset);
824
825 /*
826 * Reset missing will be caught when other binding is read
827 * but all other errors imply this binding is in use but has
828 * encountered a problem so should be handled.
829 */
830 if (ret == -EPROBE_DEFER)
831 return ret;
832 else if (ret != -ENOENT && ret != -ENOSYS)
833 dev_err(arizona->dev, "Reset GPIO malformed: %d\n",
834 ret);
835
836 pdata->reset = NULL;
837 }
838
839 ret = of_property_read_u32_array(arizona->dev->of_node,
840 "wlf,gpio-defaults",
841 pdata->gpio_defaults,
842 ARRAY_SIZE(pdata->gpio_defaults));
843 if (ret >= 0) {
844 /*
845 * All values are literal except out of range values
846 * which are chip default, translate into platform
847 * data which uses 0 as chip default and out of range
848 * as zero.
849 */
850 for (i = 0; i < ARRAY_SIZE(pdata->gpio_defaults); i++) {
851 if (pdata->gpio_defaults[i] > 0xffff)
852 pdata->gpio_defaults[i] = 0;
853 else if (pdata->gpio_defaults[i] == 0)
854 pdata->gpio_defaults[i] = 0x10000;
855 }
856 } else {
857 dev_err(arizona->dev, "Failed to parse GPIO defaults: %d\n",
858 ret);
859 }
860
861 return 0;
862 }
863
864 const struct of_device_id arizona_of_match[] = {
865 { .compatible = "wlf,wm5102", .data = (void *)WM5102 },
866 { .compatible = "wlf,wm5110", .data = (void *)WM5110 },
867 { .compatible = "wlf,wm8280", .data = (void *)WM8280 },
868 { .compatible = "wlf,wm8997", .data = (void *)WM8997 },
869 { .compatible = "wlf,wm8998", .data = (void *)WM8998 },
870 { .compatible = "wlf,wm1814", .data = (void *)WM1814 },
871 { .compatible = "wlf,wm1831", .data = (void *)WM1831 },
872 { .compatible = "cirrus,cs47l24", .data = (void *)CS47L24 },
873 {},
874 };
875 EXPORT_SYMBOL_GPL(arizona_of_match);
876 #else
arizona_of_get_core_pdata(struct arizona * arizona)877 static inline int arizona_of_get_core_pdata(struct arizona *arizona)
878 {
879 return 0;
880 }
881 #endif
882
883 static const struct mfd_cell early_devs[] = {
884 { .name = "arizona-ldo1" },
885 };
886
887 static const char * const wm5102_supplies[] = {
888 "MICVDD",
889 "DBVDD2",
890 "DBVDD3",
891 "CPVDD",
892 "SPKVDDL",
893 "SPKVDDR",
894 };
895
896 static const struct mfd_cell wm5102_devs[] = {
897 { .name = "arizona-micsupp" },
898 { .name = "arizona-gpio" },
899 {
900 .name = "arizona-extcon",
901 .parent_supplies = wm5102_supplies,
902 .num_parent_supplies = 1, /* We only need MICVDD */
903 },
904 { .name = "arizona-haptics" },
905 { .name = "arizona-pwm" },
906 {
907 .name = "wm5102-codec",
908 .parent_supplies = wm5102_supplies,
909 .num_parent_supplies = ARRAY_SIZE(wm5102_supplies),
910 },
911 };
912
913 static const struct mfd_cell wm5110_devs[] = {
914 { .name = "arizona-micsupp" },
915 { .name = "arizona-gpio" },
916 {
917 .name = "arizona-extcon",
918 .parent_supplies = wm5102_supplies,
919 .num_parent_supplies = 1, /* We only need MICVDD */
920 },
921 { .name = "arizona-haptics" },
922 { .name = "arizona-pwm" },
923 {
924 .name = "wm5110-codec",
925 .parent_supplies = wm5102_supplies,
926 .num_parent_supplies = ARRAY_SIZE(wm5102_supplies),
927 },
928 };
929
930 static const char * const cs47l24_supplies[] = {
931 "MICVDD",
932 "CPVDD",
933 "SPKVDD",
934 };
935
936 static const struct mfd_cell cs47l24_devs[] = {
937 { .name = "arizona-gpio" },
938 { .name = "arizona-haptics" },
939 { .name = "arizona-pwm" },
940 {
941 .name = "cs47l24-codec",
942 .parent_supplies = cs47l24_supplies,
943 .num_parent_supplies = ARRAY_SIZE(cs47l24_supplies),
944 },
945 };
946
947 static const char * const wm8997_supplies[] = {
948 "MICVDD",
949 "DBVDD2",
950 "CPVDD",
951 "SPKVDD",
952 };
953
954 static const struct mfd_cell wm8997_devs[] = {
955 { .name = "arizona-micsupp" },
956 { .name = "arizona-gpio" },
957 {
958 .name = "arizona-extcon",
959 .parent_supplies = wm8997_supplies,
960 .num_parent_supplies = 1, /* We only need MICVDD */
961 },
962 { .name = "arizona-haptics" },
963 { .name = "arizona-pwm" },
964 {
965 .name = "wm8997-codec",
966 .parent_supplies = wm8997_supplies,
967 .num_parent_supplies = ARRAY_SIZE(wm8997_supplies),
968 },
969 };
970
971 static const struct mfd_cell wm8998_devs[] = {
972 { .name = "arizona-micsupp" },
973 { .name = "arizona-gpio" },
974 {
975 .name = "arizona-extcon",
976 .parent_supplies = wm5102_supplies,
977 .num_parent_supplies = 1, /* We only need MICVDD */
978 },
979 { .name = "arizona-haptics" },
980 { .name = "arizona-pwm" },
981 {
982 .name = "wm8998-codec",
983 .parent_supplies = wm5102_supplies,
984 .num_parent_supplies = ARRAY_SIZE(wm5102_supplies),
985 },
986 };
987
arizona_dev_init(struct arizona * arizona)988 int arizona_dev_init(struct arizona *arizona)
989 {
990 static const char * const mclk_name[] = { "mclk1", "mclk2" };
991 struct device *dev = arizona->dev;
992 const char *type_name = NULL;
993 unsigned int reg, val;
994 int (*apply_patch)(struct arizona *) = NULL;
995 const struct mfd_cell *subdevs = NULL;
996 int n_subdevs = 0, ret, i;
997
998 dev_set_drvdata(arizona->dev, arizona);
999 mutex_init(&arizona->clk_lock);
1000
1001 if (dev_get_platdata(arizona->dev)) {
1002 memcpy(&arizona->pdata, dev_get_platdata(arizona->dev),
1003 sizeof(arizona->pdata));
1004 } else {
1005 ret = arizona_of_get_core_pdata(arizona);
1006 if (ret < 0)
1007 return ret;
1008 }
1009
1010 BUILD_BUG_ON(ARRAY_SIZE(arizona->mclk) != ARRAY_SIZE(mclk_name));
1011 for (i = 0; i < ARRAY_SIZE(arizona->mclk); i++) {
1012 arizona->mclk[i] = devm_clk_get(arizona->dev, mclk_name[i]);
1013 if (IS_ERR(arizona->mclk[i])) {
1014 dev_info(arizona->dev, "Failed to get %s: %ld\n",
1015 mclk_name[i], PTR_ERR(arizona->mclk[i]));
1016 arizona->mclk[i] = NULL;
1017 }
1018 }
1019
1020 regcache_cache_only(arizona->regmap, true);
1021
1022 switch (arizona->type) {
1023 case WM5102:
1024 case WM5110:
1025 case WM8280:
1026 case WM8997:
1027 case WM8998:
1028 case WM1814:
1029 case WM1831:
1030 case CS47L24:
1031 for (i = 0; i < ARRAY_SIZE(wm5102_core_supplies); i++)
1032 arizona->core_supplies[i].supply
1033 = wm5102_core_supplies[i];
1034 arizona->num_core_supplies = ARRAY_SIZE(wm5102_core_supplies);
1035 break;
1036 default:
1037 dev_err(arizona->dev, "Unknown device type %d\n",
1038 arizona->type);
1039 return -ENODEV;
1040 }
1041
1042 /* Mark DCVDD as external, LDO1 driver will clear if internal */
1043 arizona->external_dcvdd = true;
1044
1045 switch (arizona->type) {
1046 case WM1831:
1047 case CS47L24:
1048 break; /* No LDO1 regulator */
1049 default:
1050 ret = mfd_add_devices(arizona->dev, -1, early_devs,
1051 ARRAY_SIZE(early_devs), NULL, 0, NULL);
1052 if (ret != 0) {
1053 dev_err(dev, "Failed to add early children: %d\n", ret);
1054 return ret;
1055 }
1056 break;
1057 }
1058
1059 ret = devm_regulator_bulk_get(dev, arizona->num_core_supplies,
1060 arizona->core_supplies);
1061 if (ret != 0) {
1062 dev_err(dev, "Failed to request core supplies: %d\n",
1063 ret);
1064 goto err_early;
1065 }
1066
1067 /**
1068 * Don't use devres here because the only device we have to get
1069 * against is the MFD device and DCVDD will likely be supplied by
1070 * one of its children. Meaning that the regulator will be
1071 * destroyed by the time devres calls regulator put.
1072 */
1073 arizona->dcvdd = regulator_get(arizona->dev, "DCVDD");
1074 if (IS_ERR(arizona->dcvdd)) {
1075 ret = PTR_ERR(arizona->dcvdd);
1076 dev_err(dev, "Failed to request DCVDD: %d\n", ret);
1077 goto err_early;
1078 }
1079
1080 if (!arizona->pdata.reset) {
1081 /* Start out with /RESET low to put the chip into reset */
1082 arizona->pdata.reset = devm_gpiod_get(arizona->dev, "reset",
1083 GPIOD_OUT_LOW);
1084 if (IS_ERR(arizona->pdata.reset)) {
1085 ret = PTR_ERR(arizona->pdata.reset);
1086 if (ret == -EPROBE_DEFER)
1087 goto err_dcvdd;
1088
1089 dev_err(arizona->dev,
1090 "Reset GPIO missing/malformed: %d\n", ret);
1091
1092 arizona->pdata.reset = NULL;
1093 }
1094 }
1095
1096 ret = regulator_bulk_enable(arizona->num_core_supplies,
1097 arizona->core_supplies);
1098 if (ret != 0) {
1099 dev_err(dev, "Failed to enable core supplies: %d\n",
1100 ret);
1101 goto err_dcvdd;
1102 }
1103
1104 ret = regulator_enable(arizona->dcvdd);
1105 if (ret != 0) {
1106 dev_err(dev, "Failed to enable DCVDD: %d\n", ret);
1107 goto err_enable;
1108 }
1109
1110 arizona_disable_reset(arizona);
1111
1112 regcache_cache_only(arizona->regmap, false);
1113
1114 /* Verify that this is a chip we know about */
1115 ret = regmap_read(arizona->regmap, ARIZONA_SOFTWARE_RESET, ®);
1116 if (ret != 0) {
1117 dev_err(dev, "Failed to read ID register: %d\n", ret);
1118 goto err_reset;
1119 }
1120
1121 switch (reg) {
1122 case 0x5102:
1123 case 0x5110:
1124 case 0x6349:
1125 case 0x6363:
1126 case 0x8997:
1127 break;
1128 default:
1129 dev_err(arizona->dev, "Unknown device ID: %x\n", reg);
1130 ret = -ENODEV;
1131 goto err_reset;
1132 }
1133
1134 /* If we have a /RESET GPIO we'll already be reset */
1135 if (!arizona->pdata.reset) {
1136 ret = regmap_write(arizona->regmap, ARIZONA_SOFTWARE_RESET, 0);
1137 if (ret != 0) {
1138 dev_err(dev, "Failed to reset device: %d\n", ret);
1139 goto err_reset;
1140 }
1141
1142 usleep_range(1000, 5000);
1143 }
1144
1145 /* Ensure device startup is complete */
1146 switch (arizona->type) {
1147 case WM5102:
1148 ret = regmap_read(arizona->regmap,
1149 ARIZONA_WRITE_SEQUENCER_CTRL_3, &val);
1150 if (ret) {
1151 dev_err(dev,
1152 "Failed to check write sequencer state: %d\n",
1153 ret);
1154 } else if (val & 0x01) {
1155 ret = wm5102_clear_write_sequencer(arizona);
1156 if (ret)
1157 return ret;
1158 }
1159 break;
1160 default:
1161 break;
1162 }
1163
1164 ret = arizona_wait_for_boot(arizona);
1165 if (ret) {
1166 dev_err(arizona->dev, "Device failed initial boot: %d\n", ret);
1167 goto err_reset;
1168 }
1169
1170 /* Read the device ID information & do device specific stuff */
1171 ret = regmap_read(arizona->regmap, ARIZONA_SOFTWARE_RESET, ®);
1172 if (ret != 0) {
1173 dev_err(dev, "Failed to read ID register: %d\n", ret);
1174 goto err_reset;
1175 }
1176
1177 ret = regmap_read(arizona->regmap, ARIZONA_DEVICE_REVISION,
1178 &arizona->rev);
1179 if (ret != 0) {
1180 dev_err(dev, "Failed to read revision register: %d\n", ret);
1181 goto err_reset;
1182 }
1183 arizona->rev &= ARIZONA_DEVICE_REVISION_MASK;
1184
1185 switch (reg) {
1186 case 0x5102:
1187 if (IS_ENABLED(CONFIG_MFD_WM5102)) {
1188 type_name = "WM5102";
1189 if (arizona->type != WM5102) {
1190 dev_warn(arizona->dev,
1191 "WM5102 registered as %d\n",
1192 arizona->type);
1193 arizona->type = WM5102;
1194 }
1195
1196 apply_patch = wm5102_patch;
1197 arizona->rev &= 0x7;
1198 subdevs = wm5102_devs;
1199 n_subdevs = ARRAY_SIZE(wm5102_devs);
1200 }
1201 break;
1202 case 0x5110:
1203 if (IS_ENABLED(CONFIG_MFD_WM5110)) {
1204 switch (arizona->type) {
1205 case WM5110:
1206 type_name = "WM5110";
1207 break;
1208 case WM8280:
1209 type_name = "WM8280";
1210 break;
1211 default:
1212 type_name = "WM5110";
1213 dev_warn(arizona->dev,
1214 "WM5110 registered as %d\n",
1215 arizona->type);
1216 arizona->type = WM5110;
1217 break;
1218 }
1219
1220 apply_patch = wm5110_patch;
1221 subdevs = wm5110_devs;
1222 n_subdevs = ARRAY_SIZE(wm5110_devs);
1223 }
1224 break;
1225 case 0x6363:
1226 if (IS_ENABLED(CONFIG_MFD_CS47L24)) {
1227 switch (arizona->type) {
1228 case CS47L24:
1229 type_name = "CS47L24";
1230 break;
1231
1232 case WM1831:
1233 type_name = "WM1831";
1234 break;
1235
1236 default:
1237 dev_warn(arizona->dev,
1238 "CS47L24 registered as %d\n",
1239 arizona->type);
1240 arizona->type = CS47L24;
1241 break;
1242 }
1243
1244 apply_patch = cs47l24_patch;
1245 subdevs = cs47l24_devs;
1246 n_subdevs = ARRAY_SIZE(cs47l24_devs);
1247 }
1248 break;
1249 case 0x8997:
1250 if (IS_ENABLED(CONFIG_MFD_WM8997)) {
1251 type_name = "WM8997";
1252 if (arizona->type != WM8997) {
1253 dev_warn(arizona->dev,
1254 "WM8997 registered as %d\n",
1255 arizona->type);
1256 arizona->type = WM8997;
1257 }
1258
1259 apply_patch = wm8997_patch;
1260 subdevs = wm8997_devs;
1261 n_subdevs = ARRAY_SIZE(wm8997_devs);
1262 }
1263 break;
1264 case 0x6349:
1265 if (IS_ENABLED(CONFIG_MFD_WM8998)) {
1266 switch (arizona->type) {
1267 case WM8998:
1268 type_name = "WM8998";
1269 break;
1270
1271 case WM1814:
1272 type_name = "WM1814";
1273 break;
1274
1275 default:
1276 type_name = "WM8998";
1277 dev_warn(arizona->dev,
1278 "WM8998 registered as %d\n",
1279 arizona->type);
1280 arizona->type = WM8998;
1281 }
1282
1283 apply_patch = wm8998_patch;
1284 subdevs = wm8998_devs;
1285 n_subdevs = ARRAY_SIZE(wm8998_devs);
1286 }
1287 break;
1288 default:
1289 dev_err(arizona->dev, "Unknown device ID %x\n", reg);
1290 ret = -ENODEV;
1291 goto err_reset;
1292 }
1293
1294 if (!subdevs) {
1295 dev_err(arizona->dev,
1296 "No kernel support for device ID %x\n", reg);
1297 ret = -ENODEV;
1298 goto err_reset;
1299 }
1300
1301 dev_info(dev, "%s revision %c\n", type_name, arizona->rev + 'A');
1302
1303 if (apply_patch) {
1304 ret = apply_patch(arizona);
1305 if (ret != 0) {
1306 dev_err(arizona->dev, "Failed to apply patch: %d\n",
1307 ret);
1308 goto err_reset;
1309 }
1310
1311 switch (arizona->type) {
1312 case WM5102:
1313 ret = wm5102_apply_hardware_patch(arizona);
1314 if (ret) {
1315 dev_err(arizona->dev,
1316 "Failed to apply hardware patch: %d\n",
1317 ret);
1318 goto err_reset;
1319 }
1320 break;
1321 case WM5110:
1322 case WM8280:
1323 ret = wm5110_apply_sleep_patch(arizona);
1324 if (ret) {
1325 dev_err(arizona->dev,
1326 "Failed to apply sleep patch: %d\n",
1327 ret);
1328 goto err_reset;
1329 }
1330 break;
1331 default:
1332 break;
1333 }
1334 }
1335
1336 for (i = 0; i < ARRAY_SIZE(arizona->pdata.gpio_defaults); i++) {
1337 if (!arizona->pdata.gpio_defaults[i])
1338 continue;
1339
1340 regmap_write(arizona->regmap, ARIZONA_GPIO1_CTRL + i,
1341 arizona->pdata.gpio_defaults[i]);
1342 }
1343
1344 /* Chip default */
1345 if (!arizona->pdata.clk32k_src)
1346 arizona->pdata.clk32k_src = ARIZONA_32KZ_MCLK2;
1347
1348 switch (arizona->pdata.clk32k_src) {
1349 case ARIZONA_32KZ_MCLK1:
1350 case ARIZONA_32KZ_MCLK2:
1351 regmap_update_bits(arizona->regmap, ARIZONA_CLOCK_32K_1,
1352 ARIZONA_CLK_32K_SRC_MASK,
1353 arizona->pdata.clk32k_src - 1);
1354 arizona_clk32k_enable(arizona);
1355 break;
1356 case ARIZONA_32KZ_NONE:
1357 regmap_update_bits(arizona->regmap, ARIZONA_CLOCK_32K_1,
1358 ARIZONA_CLK_32K_SRC_MASK, 2);
1359 break;
1360 default:
1361 dev_err(arizona->dev, "Invalid 32kHz clock source: %d\n",
1362 arizona->pdata.clk32k_src);
1363 ret = -EINVAL;
1364 goto err_reset;
1365 }
1366
1367 for (i = 0; i < ARIZONA_MAX_MICBIAS; i++) {
1368 if (!arizona->pdata.micbias[i].mV &&
1369 !arizona->pdata.micbias[i].bypass)
1370 continue;
1371
1372 /* Apply default for bypass mode */
1373 if (!arizona->pdata.micbias[i].mV)
1374 arizona->pdata.micbias[i].mV = 2800;
1375
1376 val = (arizona->pdata.micbias[i].mV - 1500) / 100;
1377
1378 val <<= ARIZONA_MICB1_LVL_SHIFT;
1379
1380 if (arizona->pdata.micbias[i].ext_cap)
1381 val |= ARIZONA_MICB1_EXT_CAP;
1382
1383 if (arizona->pdata.micbias[i].discharge)
1384 val |= ARIZONA_MICB1_DISCH;
1385
1386 if (arizona->pdata.micbias[i].soft_start)
1387 val |= ARIZONA_MICB1_RATE;
1388
1389 if (arizona->pdata.micbias[i].bypass)
1390 val |= ARIZONA_MICB1_BYPASS;
1391
1392 regmap_update_bits(arizona->regmap,
1393 ARIZONA_MIC_BIAS_CTRL_1 + i,
1394 ARIZONA_MICB1_LVL_MASK |
1395 ARIZONA_MICB1_EXT_CAP |
1396 ARIZONA_MICB1_DISCH |
1397 ARIZONA_MICB1_BYPASS |
1398 ARIZONA_MICB1_RATE, val);
1399 }
1400
1401 pm_runtime_set_active(arizona->dev);
1402 pm_runtime_enable(arizona->dev);
1403
1404 /* Set up for interrupts */
1405 ret = arizona_irq_init(arizona);
1406 if (ret != 0)
1407 goto err_pm;
1408
1409 pm_runtime_set_autosuspend_delay(arizona->dev, 100);
1410 pm_runtime_use_autosuspend(arizona->dev);
1411
1412 arizona_request_irq(arizona, ARIZONA_IRQ_CLKGEN_ERR, "CLKGEN error",
1413 arizona_clkgen_err, arizona);
1414 arizona_request_irq(arizona, ARIZONA_IRQ_OVERCLOCKED, "Overclocked",
1415 arizona_overclocked, arizona);
1416 arizona_request_irq(arizona, ARIZONA_IRQ_UNDERCLOCKED, "Underclocked",
1417 arizona_underclocked, arizona);
1418
1419 ret = mfd_add_devices(arizona->dev, PLATFORM_DEVID_NONE,
1420 subdevs, n_subdevs, NULL, 0, NULL);
1421
1422 if (ret) {
1423 dev_err(arizona->dev, "Failed to add subdevices: %d\n", ret);
1424 goto err_irq;
1425 }
1426
1427 return 0;
1428
1429 err_irq:
1430 arizona_irq_exit(arizona);
1431 err_pm:
1432 pm_runtime_disable(arizona->dev);
1433 err_reset:
1434 arizona_enable_reset(arizona);
1435 regulator_disable(arizona->dcvdd);
1436 err_enable:
1437 regulator_bulk_disable(arizona->num_core_supplies,
1438 arizona->core_supplies);
1439 err_dcvdd:
1440 regulator_put(arizona->dcvdd);
1441 err_early:
1442 mfd_remove_devices(dev);
1443 return ret;
1444 }
1445 EXPORT_SYMBOL_GPL(arizona_dev_init);
1446
arizona_dev_exit(struct arizona * arizona)1447 int arizona_dev_exit(struct arizona *arizona)
1448 {
1449 disable_irq(arizona->irq);
1450 pm_runtime_disable(arizona->dev);
1451
1452 regulator_disable(arizona->dcvdd);
1453 regulator_put(arizona->dcvdd);
1454
1455 mfd_remove_devices(arizona->dev);
1456 arizona_free_irq(arizona, ARIZONA_IRQ_UNDERCLOCKED, arizona);
1457 arizona_free_irq(arizona, ARIZONA_IRQ_OVERCLOCKED, arizona);
1458 arizona_free_irq(arizona, ARIZONA_IRQ_CLKGEN_ERR, arizona);
1459 arizona_irq_exit(arizona);
1460 arizona_enable_reset(arizona);
1461
1462 regulator_bulk_disable(arizona->num_core_supplies,
1463 arizona->core_supplies);
1464 return 0;
1465 }
1466 EXPORT_SYMBOL_GPL(arizona_dev_exit);
1467
