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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
32static const char * const wm5102_core_supplies[] = {
33 "AVDD",
34 "DBVDD1",
35};
36
37int 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
69err_ref:
70 if (ret != 0)
71 arizona->clk32k_ref--;
72
73 mutex_unlock(&arizona->clk_lock);
74
75 return ret;
76}
77EXPORT_SYMBOL_GPL(arizona_clk32k_enable);
78
79int arizona_clk32k_disable(struct arizona *arizona)
80{
81 mutex_lock(&arizona->clk_lock);
82
83 WARN_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}
106EXPORT_SYMBOL_GPL(arizona_clk32k_disable);
107
108static 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
117static 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
157static 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
175
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
237static 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
247static 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
272static int arizona_wait_for_boot(struct arizona *arizona)
273{
274 int ret;
275
276
277
278
279
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
293static 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
299static void arizona_disable_reset(struct arizona *arizona)
300{
301 if (arizona->pdata.reset) {
302 switch (arizona->type) {
303 case WM5110:
304 case WM8280:
305
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
317struct arizona_sysclk_state {
318 unsigned int fll;
319 unsigned int sysclk;
320};
321
322static int arizona_enable_freerun_sysclk(struct arizona *arizona,
323 struct arizona_sysclk_state *state)
324{
325 int ret, err;
326
327
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
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
365err_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
374static 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
397static 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
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
421err:
422 err = arizona_disable_freerun_sysclk(arizona, &state);
423
424 return ret ?: err;
425}
426
427
428
429
430
431static const struct reg_sequence wm5110_sleep_patch[] = {
432 { 0x337A, 0xC100 },
433 { 0x337B, 0x0041 },
434 { 0x3300, 0xA210 },
435 { 0x3301, 0x050C },
436};
437
438static 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
456static 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
484static 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
498static 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
511static 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
528static 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
600
601
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
648err:
649 regcache_cache_only(arizona->regmap, true);
650 regulator_disable(arizona->dcvdd);
651 return ret;
652}
653
654static 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
676
677
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
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
748static 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
758static 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
768static 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
778static 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
789const 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};
797EXPORT_SYMBOL_GPL(arizona_pm_ops);
798
799#ifdef CONFIG_OF
800static int arizona_of_get_core_pdata(struct arizona *arizona)
801{
802 struct arizona_pdata *pdata = &arizona->pdata;
803 int ret, i;
804
805
806 pdata->reset = devm_gpiod_get(arizona->dev, "wlf,reset", GPIOD_OUT_LOW);
807 if (IS_ERR(pdata->reset)) {
808 ret = PTR_ERR(pdata->reset);
809
810
811
812
813
814
815 if (ret == -EPROBE_DEFER)
816 return ret;
817 else if (ret != -ENOENT && ret != -ENOSYS)
818 dev_err(arizona->dev, "Reset GPIO malformed: %d\n",
819 ret);
820
821 pdata->reset = NULL;
822 }
823
824 ret = of_property_read_u32_array(arizona->dev->of_node,
825 "wlf,gpio-defaults",
826 pdata->gpio_defaults,
827 ARRAY_SIZE(pdata->gpio_defaults));
828 if (ret >= 0) {
829
830
831
832
833
834
835 for (i = 0; i < ARRAY_SIZE(pdata->gpio_defaults); i++) {
836 if (pdata->gpio_defaults[i] > 0xffff)
837 pdata->gpio_defaults[i] = 0;
838 else if (pdata->gpio_defaults[i] == 0)
839 pdata->gpio_defaults[i] = 0x10000;
840 }
841 } else {
842 dev_err(arizona->dev, "Failed to parse GPIO defaults: %d\n",
843 ret);
844 }
845
846 return 0;
847}
848
849const struct of_device_id arizona_of_match[] = {
850 { .compatible = "wlf,wm5102", .data = (void *)WM5102 },
851 { .compatible = "wlf,wm5110", .data = (void *)WM5110 },
852 { .compatible = "wlf,wm8280", .data = (void *)WM8280 },
853 { .compatible = "wlf,wm8997", .data = (void *)WM8997 },
854 { .compatible = "wlf,wm8998", .data = (void *)WM8998 },
855 { .compatible = "wlf,wm1814", .data = (void *)WM1814 },
856 { .compatible = "wlf,wm1831", .data = (void *)WM1831 },
857 { .compatible = "cirrus,cs47l24", .data = (void *)CS47L24 },
858 {},
859};
860EXPORT_SYMBOL_GPL(arizona_of_match);
861#else
862static inline int arizona_of_get_core_pdata(struct arizona *arizona)
863{
864 return 0;
865}
866#endif
867
868static const struct mfd_cell early_devs[] = {
869 { .name = "arizona-ldo1" },
870};
871
872static const char * const wm5102_supplies[] = {
873 "MICVDD",
874 "DBVDD2",
875 "DBVDD3",
876 "CPVDD",
877 "SPKVDDL",
878 "SPKVDDR",
879};
880
881static const struct mfd_cell wm5102_devs[] = {
882 { .name = "arizona-micsupp" },
883 { .name = "arizona-gpio" },
884 { .name = "arizona-haptics" },
885 { .name = "arizona-pwm" },
886 {
887 .name = "wm5102-codec",
888 .parent_supplies = wm5102_supplies,
889 .num_parent_supplies = ARRAY_SIZE(wm5102_supplies),
890 },
891};
892
893static const struct mfd_cell wm5110_devs[] = {
894 { .name = "arizona-micsupp" },
895 { .name = "arizona-gpio" },
896 { .name = "arizona-haptics" },
897 { .name = "arizona-pwm" },
898 {
899 .name = "wm5110-codec",
900 .parent_supplies = wm5102_supplies,
901 .num_parent_supplies = ARRAY_SIZE(wm5102_supplies),
902 },
903};
904
905static const char * const cs47l24_supplies[] = {
906 "MICVDD",
907 "CPVDD",
908 "SPKVDD",
909};
910
911static const struct mfd_cell cs47l24_devs[] = {
912 { .name = "arizona-gpio" },
913 { .name = "arizona-haptics" },
914 { .name = "arizona-pwm" },
915 {
916 .name = "cs47l24-codec",
917 .parent_supplies = cs47l24_supplies,
918 .num_parent_supplies = ARRAY_SIZE(cs47l24_supplies),
919 },
920};
921
922static const char * const wm8997_supplies[] = {
923 "MICVDD",
924 "DBVDD2",
925 "CPVDD",
926 "SPKVDD",
927};
928
929static const struct mfd_cell wm8997_devs[] = {
930 { .name = "arizona-micsupp" },
931 { .name = "arizona-gpio" },
932 { .name = "arizona-haptics" },
933 { .name = "arizona-pwm" },
934 {
935 .name = "wm8997-codec",
936 .parent_supplies = wm8997_supplies,
937 .num_parent_supplies = ARRAY_SIZE(wm8997_supplies),
938 },
939};
940
941static const struct mfd_cell wm8998_devs[] = {
942 { .name = "arizona-micsupp" },
943 { .name = "arizona-gpio" },
944 { .name = "arizona-haptics" },
945 { .name = "arizona-pwm" },
946 {
947 .name = "wm8998-codec",
948 .parent_supplies = wm5102_supplies,
949 .num_parent_supplies = ARRAY_SIZE(wm5102_supplies),
950 },
951};
952
953int arizona_dev_init(struct arizona *arizona)
954{
955 static const char * const mclk_name[] = { "mclk1", "mclk2" };
956 struct device *dev = arizona->dev;
957 const char *type_name = NULL;
958 unsigned int reg, val;
959 int (*apply_patch)(struct arizona *) = NULL;
960 const struct mfd_cell *subdevs = NULL;
961 int n_subdevs = 0, ret, i;
962
963 dev_set_drvdata(arizona->dev, arizona);
964 mutex_init(&arizona->clk_lock);
965
966 if (dev_get_platdata(arizona->dev)) {
967 memcpy(&arizona->pdata, dev_get_platdata(arizona->dev),
968 sizeof(arizona->pdata));
969 } else {
970 ret = arizona_of_get_core_pdata(arizona);
971 if (ret < 0)
972 return ret;
973 }
974
975 BUILD_BUG_ON(ARRAY_SIZE(arizona->mclk) != ARRAY_SIZE(mclk_name));
976 for (i = 0; i < ARRAY_SIZE(arizona->mclk); i++) {
977 arizona->mclk[i] = devm_clk_get(arizona->dev, mclk_name[i]);
978 if (IS_ERR(arizona->mclk[i])) {
979 dev_info(arizona->dev, "Failed to get %s: %ld\n",
980 mclk_name[i], PTR_ERR(arizona->mclk[i]));
981 arizona->mclk[i] = NULL;
982 }
983 }
984
985 regcache_cache_only(arizona->regmap, true);
986
987 switch (arizona->type) {
988 case WM5102:
989 case WM5110:
990 case WM8280:
991 case WM8997:
992 case WM8998:
993 case WM1814:
994 case WM1831:
995 case CS47L24:
996 for (i = 0; i < ARRAY_SIZE(wm5102_core_supplies); i++)
997 arizona->core_supplies[i].supply
998 = wm5102_core_supplies[i];
999 arizona->num_core_supplies = ARRAY_SIZE(wm5102_core_supplies);
1000 break;
1001 default:
1002 dev_err(arizona->dev, "Unknown device type %d\n",
1003 arizona->type);
1004 return -ENODEV;
1005 }
1006
1007
1008 arizona->external_dcvdd = true;
1009
1010 switch (arizona->type) {
1011 case WM1831:
1012 case CS47L24:
1013 break;
1014 default:
1015 ret = mfd_add_devices(arizona->dev, -1, early_devs,
1016 ARRAY_SIZE(early_devs), NULL, 0, NULL);
1017 if (ret != 0) {
1018 dev_err(dev, "Failed to add early children: %d\n", ret);
1019 return ret;
1020 }
1021 break;
1022 }
1023
1024 ret = devm_regulator_bulk_get(dev, arizona->num_core_supplies,
1025 arizona->core_supplies);
1026 if (ret != 0) {
1027 dev_err(dev, "Failed to request core supplies: %d\n",
1028 ret);
1029 goto err_early;
1030 }
1031
1032
1033
1034
1035
1036
1037
1038 arizona->dcvdd = regulator_get(arizona->dev, "DCVDD");
1039 if (IS_ERR(arizona->dcvdd)) {
1040 ret = PTR_ERR(arizona->dcvdd);
1041 dev_err(dev, "Failed to request DCVDD: %d\n", ret);
1042 goto err_early;
1043 }
1044
1045 if (!arizona->pdata.reset) {
1046
1047 arizona->pdata.reset = devm_gpiod_get(arizona->dev, "reset",
1048 GPIOD_OUT_LOW);
1049 if (IS_ERR(arizona->pdata.reset)) {
1050 ret = PTR_ERR(arizona->pdata.reset);
1051 if (ret == -EPROBE_DEFER)
1052 goto err_dcvdd;
1053
1054 dev_err(arizona->dev,
1055 "Reset GPIO missing/malformed: %d\n", ret);
1056
1057 arizona->pdata.reset = NULL;
1058 }
1059 }
1060
1061 ret = regulator_bulk_enable(arizona->num_core_supplies,
1062 arizona->core_supplies);
1063 if (ret != 0) {
1064 dev_err(dev, "Failed to enable core supplies: %d\n",
1065 ret);
1066 goto err_dcvdd;
1067 }
1068
1069 ret = regulator_enable(arizona->dcvdd);
1070 if (ret != 0) {
1071 dev_err(dev, "Failed to enable DCVDD: %d\n", ret);
1072 goto err_enable;
1073 }
1074
1075 arizona_disable_reset(arizona);
1076
1077 regcache_cache_only(arizona->regmap, false);
1078
1079
1080 ret = regmap_read(arizona->regmap, ARIZONA_SOFTWARE_RESET, ®);
1081 if (ret != 0) {
1082 dev_err(dev, "Failed to read ID register: %d\n", ret);
1083 goto err_reset;
1084 }
1085
1086 switch (reg) {
1087 case 0x5102:
1088 case 0x5110:
1089 case 0x6349:
1090 case 0x6363:
1091 case 0x8997:
1092 break;
1093 default:
1094 dev_err(arizona->dev, "Unknown device ID: %x\n", reg);
1095 ret = -ENODEV;
1096 goto err_reset;
1097 }
1098
1099
1100 if (!arizona->pdata.reset) {
1101 ret = regmap_write(arizona->regmap, ARIZONA_SOFTWARE_RESET, 0);
1102 if (ret != 0) {
1103 dev_err(dev, "Failed to reset device: %d\n", ret);
1104 goto err_reset;
1105 }
1106
1107 usleep_range(1000, 5000);
1108 }
1109
1110
1111 switch (arizona->type) {
1112 case WM5102:
1113 ret = regmap_read(arizona->regmap,
1114 ARIZONA_WRITE_SEQUENCER_CTRL_3, &val);
1115 if (ret) {
1116 dev_err(dev,
1117 "Failed to check write sequencer state: %d\n",
1118 ret);
1119 } else if (val & 0x01) {
1120 ret = wm5102_clear_write_sequencer(arizona);
1121 if (ret)
1122 return ret;
1123 }
1124 break;
1125 default:
1126 break;
1127 }
1128
1129 ret = arizona_wait_for_boot(arizona);
1130 if (ret) {
1131 dev_err(arizona->dev, "Device failed initial boot: %d\n", ret);
1132 goto err_reset;
1133 }
1134
1135
1136 ret = regmap_read(arizona->regmap, ARIZONA_SOFTWARE_RESET, ®);
1137 if (ret != 0) {
1138 dev_err(dev, "Failed to read ID register: %d\n", ret);
1139 goto err_reset;
1140 }
1141
1142 ret = regmap_read(arizona->regmap, ARIZONA_DEVICE_REVISION,
1143 &arizona->rev);
1144 if (ret != 0) {
1145 dev_err(dev, "Failed to read revision register: %d\n", ret);
1146 goto err_reset;
1147 }
1148 arizona->rev &= ARIZONA_DEVICE_REVISION_MASK;
1149
1150 switch (reg) {
1151 case 0x5102:
1152 if (IS_ENABLED(CONFIG_MFD_WM5102)) {
1153 type_name = "WM5102";
1154 if (arizona->type != WM5102) {
1155 dev_warn(arizona->dev,
1156 "WM5102 registered as %d\n",
1157 arizona->type);
1158 arizona->type = WM5102;
1159 }
1160
1161 apply_patch = wm5102_patch;
1162 arizona->rev &= 0x7;
1163 subdevs = wm5102_devs;
1164 n_subdevs = ARRAY_SIZE(wm5102_devs);
1165 }
1166 break;
1167 case 0x5110:
1168 if (IS_ENABLED(CONFIG_MFD_WM5110)) {
1169 switch (arizona->type) {
1170 case WM5110:
1171 type_name = "WM5110";
1172 break;
1173 case WM8280:
1174 type_name = "WM8280";
1175 break;
1176 default:
1177 type_name = "WM5110";
1178 dev_warn(arizona->dev,
1179 "WM5110 registered as %d\n",
1180 arizona->type);
1181 arizona->type = WM5110;
1182 break;
1183 }
1184
1185 apply_patch = wm5110_patch;
1186 subdevs = wm5110_devs;
1187 n_subdevs = ARRAY_SIZE(wm5110_devs);
1188 }
1189 break;
1190 case 0x6363:
1191 if (IS_ENABLED(CONFIG_MFD_CS47L24)) {
1192 switch (arizona->type) {
1193 case CS47L24:
1194 type_name = "CS47L24";
1195 break;
1196
1197 case WM1831:
1198 type_name = "WM1831";
1199 break;
1200
1201 default:
1202 dev_warn(arizona->dev,
1203 "CS47L24 registered as %d\n",
1204 arizona->type);
1205 arizona->type = CS47L24;
1206 break;
1207 }
1208
1209 apply_patch = cs47l24_patch;
1210 subdevs = cs47l24_devs;
1211 n_subdevs = ARRAY_SIZE(cs47l24_devs);
1212 }
1213 break;
1214 case 0x8997:
1215 if (IS_ENABLED(CONFIG_MFD_WM8997)) {
1216 type_name = "WM8997";
1217 if (arizona->type != WM8997) {
1218 dev_warn(arizona->dev,
1219 "WM8997 registered as %d\n",
1220 arizona->type);
1221 arizona->type = WM8997;
1222 }
1223
1224 apply_patch = wm8997_patch;
1225 subdevs = wm8997_devs;
1226 n_subdevs = ARRAY_SIZE(wm8997_devs);
1227 }
1228 break;
1229 case 0x6349:
1230 if (IS_ENABLED(CONFIG_MFD_WM8998)) {
1231 switch (arizona->type) {
1232 case WM8998:
1233 type_name = "WM8998";
1234 break;
1235
1236 case WM1814:
1237 type_name = "WM1814";
1238 break;
1239
1240 default:
1241 type_name = "WM8998";
1242 dev_warn(arizona->dev,
1243 "WM8998 registered as %d\n",
1244 arizona->type);
1245 arizona->type = WM8998;
1246 }
1247
1248 apply_patch = wm8998_patch;
1249 subdevs = wm8998_devs;
1250 n_subdevs = ARRAY_SIZE(wm8998_devs);
1251 }
1252 break;
1253 default:
1254 dev_err(arizona->dev, "Unknown device ID %x\n", reg);
1255 ret = -ENODEV;
1256 goto err_reset;
1257 }
1258
1259 if (!subdevs) {
1260 dev_err(arizona->dev,
1261 "No kernel support for device ID %x\n", reg);
1262 ret = -ENODEV;
1263 goto err_reset;
1264 }
1265
1266 dev_info(dev, "%s revision %c\n", type_name, arizona->rev + 'A');
1267
1268 if (apply_patch) {
1269 ret = apply_patch(arizona);
1270 if (ret != 0) {
1271 dev_err(arizona->dev, "Failed to apply patch: %d\n",
1272 ret);
1273 goto err_reset;
1274 }
1275
1276 switch (arizona->type) {
1277 case WM5102:
1278 ret = wm5102_apply_hardware_patch(arizona);
1279 if (ret) {
1280 dev_err(arizona->dev,
1281 "Failed to apply hardware patch: %d\n",
1282 ret);
1283 goto err_reset;
1284 }
1285 break;
1286 case WM5110:
1287 case WM8280:
1288 ret = wm5110_apply_sleep_patch(arizona);
1289 if (ret) {
1290 dev_err(arizona->dev,
1291 "Failed to apply sleep patch: %d\n",
1292 ret);
1293 goto err_reset;
1294 }
1295 break;
1296 default:
1297 break;
1298 }
1299 }
1300
1301 for (i = 0; i < ARRAY_SIZE(arizona->pdata.gpio_defaults); i++) {
1302 if (!arizona->pdata.gpio_defaults[i])
1303 continue;
1304
1305 regmap_write(arizona->regmap, ARIZONA_GPIO1_CTRL + i,
1306 arizona->pdata.gpio_defaults[i]);
1307 }
1308
1309
1310 if (!arizona->pdata.clk32k_src)
1311 arizona->pdata.clk32k_src = ARIZONA_32KZ_MCLK2;
1312
1313 switch (arizona->pdata.clk32k_src) {
1314 case ARIZONA_32KZ_MCLK1:
1315 case ARIZONA_32KZ_MCLK2:
1316 regmap_update_bits(arizona->regmap, ARIZONA_CLOCK_32K_1,
1317 ARIZONA_CLK_32K_SRC_MASK,
1318 arizona->pdata.clk32k_src - 1);
1319 arizona_clk32k_enable(arizona);
1320 break;
1321 case ARIZONA_32KZ_NONE:
1322 regmap_update_bits(arizona->regmap, ARIZONA_CLOCK_32K_1,
1323 ARIZONA_CLK_32K_SRC_MASK, 2);
1324 break;
1325 default:
1326 dev_err(arizona->dev, "Invalid 32kHz clock source: %d\n",
1327 arizona->pdata.clk32k_src);
1328 ret = -EINVAL;
1329 goto err_reset;
1330 }
1331
1332 for (i = 0; i < ARIZONA_MAX_MICBIAS; i++) {
1333 if (!arizona->pdata.micbias[i].mV &&
1334 !arizona->pdata.micbias[i].bypass)
1335 continue;
1336
1337
1338 if (!arizona->pdata.micbias[i].mV)
1339 arizona->pdata.micbias[i].mV = 2800;
1340
1341 val = (arizona->pdata.micbias[i].mV - 1500) / 100;
1342
1343 val <<= ARIZONA_MICB1_LVL_SHIFT;
1344
1345 if (arizona->pdata.micbias[i].ext_cap)
1346 val |= ARIZONA_MICB1_EXT_CAP;
1347
1348 if (arizona->pdata.micbias[i].discharge)
1349 val |= ARIZONA_MICB1_DISCH;
1350
1351 if (arizona->pdata.micbias[i].soft_start)
1352 val |= ARIZONA_MICB1_RATE;
1353
1354 if (arizona->pdata.micbias[i].bypass)
1355 val |= ARIZONA_MICB1_BYPASS;
1356
1357 regmap_update_bits(arizona->regmap,
1358 ARIZONA_MIC_BIAS_CTRL_1 + i,
1359 ARIZONA_MICB1_LVL_MASK |
1360 ARIZONA_MICB1_EXT_CAP |
1361 ARIZONA_MICB1_DISCH |
1362 ARIZONA_MICB1_BYPASS |
1363 ARIZONA_MICB1_RATE, val);
1364 }
1365
1366 pm_runtime_set_active(arizona->dev);
1367 pm_runtime_enable(arizona->dev);
1368
1369
1370 ret = arizona_irq_init(arizona);
1371 if (ret != 0)
1372 goto err_pm;
1373
1374 pm_runtime_set_autosuspend_delay(arizona->dev, 100);
1375 pm_runtime_use_autosuspend(arizona->dev);
1376
1377 arizona_request_irq(arizona, ARIZONA_IRQ_CLKGEN_ERR, "CLKGEN error",
1378 arizona_clkgen_err, arizona);
1379 arizona_request_irq(arizona, ARIZONA_IRQ_OVERCLOCKED, "Overclocked",
1380 arizona_overclocked, arizona);
1381 arizona_request_irq(arizona, ARIZONA_IRQ_UNDERCLOCKED, "Underclocked",
1382 arizona_underclocked, arizona);
1383
1384 ret = mfd_add_devices(arizona->dev, PLATFORM_DEVID_NONE,
1385 subdevs, n_subdevs, NULL, 0, NULL);
1386
1387 if (ret) {
1388 dev_err(arizona->dev, "Failed to add subdevices: %d\n", ret);
1389 goto err_irq;
1390 }
1391
1392 return 0;
1393
1394err_irq:
1395 arizona_irq_exit(arizona);
1396err_pm:
1397 pm_runtime_disable(arizona->dev);
1398
1399 switch (arizona->pdata.clk32k_src) {
1400 case ARIZONA_32KZ_MCLK1:
1401 case ARIZONA_32KZ_MCLK2:
1402 arizona_clk32k_disable(arizona);
1403 break;
1404 default:
1405 break;
1406 }
1407err_reset:
1408 arizona_enable_reset(arizona);
1409 regulator_disable(arizona->dcvdd);
1410err_enable:
1411 regulator_bulk_disable(arizona->num_core_supplies,
1412 arizona->core_supplies);
1413err_dcvdd:
1414 regulator_put(arizona->dcvdd);
1415err_early:
1416 mfd_remove_devices(dev);
1417 return ret;
1418}
1419EXPORT_SYMBOL_GPL(arizona_dev_init);
1420
1421int arizona_dev_exit(struct arizona *arizona)
1422{
1423 disable_irq(arizona->irq);
1424 pm_runtime_disable(arizona->dev);
1425
1426 regulator_disable(arizona->dcvdd);
1427 regulator_put(arizona->dcvdd);
1428
1429 switch (arizona->pdata.clk32k_src) {
1430 case ARIZONA_32KZ_MCLK1:
1431 case ARIZONA_32KZ_MCLK2:
1432 arizona_clk32k_disable(arizona);
1433 break;
1434 default:
1435 break;
1436 }
1437
1438 mfd_remove_devices(arizona->dev);
1439 arizona_free_irq(arizona, ARIZONA_IRQ_UNDERCLOCKED, arizona);
1440 arizona_free_irq(arizona, ARIZONA_IRQ_OVERCLOCKED, arizona);
1441 arizona_free_irq(arizona, ARIZONA_IRQ_CLKGEN_ERR, arizona);
1442 arizona_irq_exit(arizona);
1443 arizona_enable_reset(arizona);
1444
1445 regulator_bulk_disable(arizona->num_core_supplies,
1446 arizona->core_supplies);
1447 return 0;
1448}
1449EXPORT_SYMBOL_GPL(arizona_dev_exit);
1450
1451MODULE_LICENSE("GPL v2");
1452
