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 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 }
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(arizona->dev, "wlf,reset", GPIOD_OUT_LOW);
818 if (IS_ERR(pdata->reset)) {
819 ret = PTR_ERR(pdata->reset);
820
821 /*
822 * Reset missing will be caught when other binding is read
823 * but all other errors imply this binding is in use but has
824 * encountered a problem so should be handled.
825 */
826 if (ret == -EPROBE_DEFER)
827 return ret;
828 else if (ret != -ENOENT && ret != -ENOSYS)
829 dev_err(arizona->dev, "Reset GPIO malformed: %d\n",
830 ret);
831
832 pdata->reset = NULL;
833 }
834
835 ret = of_property_read_u32_array(arizona->dev->of_node,
836 "wlf,gpio-defaults",
837 pdata->gpio_defaults,
838 ARRAY_SIZE(pdata->gpio_defaults));
839 if (ret >= 0) {
840 /*
841 * All values are literal except out of range values
842 * which are chip default, translate into platform
843 * data which uses 0 as chip default and out of range
844 * as zero.
845 */
846 for (i = 0; i < ARRAY_SIZE(pdata->gpio_defaults); i++) {
847 if (pdata->gpio_defaults[i] > 0xffff)
848 pdata->gpio_defaults[i] = 0;
849 else if (pdata->gpio_defaults[i] == 0)
850 pdata->gpio_defaults[i] = 0x10000;
851 }
852 } else {
853 dev_err(arizona->dev, "Failed to parse GPIO defaults: %d\n",
854 ret);
855 }
856
857 return 0;
858 }
859
860 const struct of_device_id arizona_of_match[] = {
861 { .compatible = "wlf,wm5102", .data = (void *)WM5102 },
862 { .compatible = "wlf,wm5110", .data = (void *)WM5110 },
863 { .compatible = "wlf,wm8280", .data = (void *)WM8280 },
864 { .compatible = "wlf,wm8997", .data = (void *)WM8997 },
865 { .compatible = "wlf,wm8998", .data = (void *)WM8998 },
866 { .compatible = "wlf,wm1814", .data = (void *)WM1814 },
867 { .compatible = "wlf,wm1831", .data = (void *)WM1831 },
868 { .compatible = "cirrus,cs47l24", .data = (void *)CS47L24 },
869 {},
870 };
871 EXPORT_SYMBOL_GPL(arizona_of_match);
872 #else
arizona_of_get_core_pdata(struct arizona * arizona)873 static inline int arizona_of_get_core_pdata(struct arizona *arizona)
874 {
875 return 0;
876 }
877 #endif
878
879 static const struct mfd_cell early_devs[] = {
880 { .name = "arizona-ldo1" },
881 };
882
883 static const char * const wm5102_supplies[] = {
884 "MICVDD",
885 "DBVDD2",
886 "DBVDD3",
887 "CPVDD",
888 "SPKVDDL",
889 "SPKVDDR",
890 };
891
892 static const struct mfd_cell wm5102_devs[] = {
893 { .name = "arizona-micsupp" },
894 { .name = "arizona-gpio" },
895 {
896 .name = "arizona-extcon",
897 .parent_supplies = wm5102_supplies,
898 .num_parent_supplies = 1, /* We only need MICVDD */
899 },
900 { .name = "arizona-haptics" },
901 { .name = "arizona-pwm" },
902 {
903 .name = "wm5102-codec",
904 .parent_supplies = wm5102_supplies,
905 .num_parent_supplies = ARRAY_SIZE(wm5102_supplies),
906 },
907 };
908
909 static const struct mfd_cell wm5110_devs[] = {
910 { .name = "arizona-micsupp" },
911 { .name = "arizona-gpio" },
912 {
913 .name = "arizona-extcon",
914 .parent_supplies = wm5102_supplies,
915 .num_parent_supplies = 1, /* We only need MICVDD */
916 },
917 { .name = "arizona-haptics" },
918 { .name = "arizona-pwm" },
919 {
920 .name = "wm5110-codec",
921 .parent_supplies = wm5102_supplies,
922 .num_parent_supplies = ARRAY_SIZE(wm5102_supplies),
923 },
924 };
925
926 static const char * const cs47l24_supplies[] = {
927 "MICVDD",
928 "CPVDD",
929 "SPKVDD",
930 };
931
932 static const struct mfd_cell cs47l24_devs[] = {
933 { .name = "arizona-gpio" },
934 { .name = "arizona-haptics" },
935 { .name = "arizona-pwm" },
936 {
937 .name = "cs47l24-codec",
938 .parent_supplies = cs47l24_supplies,
939 .num_parent_supplies = ARRAY_SIZE(cs47l24_supplies),
940 },
941 };
942
943 static const char * const wm8997_supplies[] = {
944 "MICVDD",
945 "DBVDD2",
946 "CPVDD",
947 "SPKVDD",
948 };
949
950 static const struct mfd_cell wm8997_devs[] = {
951 { .name = "arizona-micsupp" },
952 { .name = "arizona-gpio" },
953 {
954 .name = "arizona-extcon",
955 .parent_supplies = wm8997_supplies,
956 .num_parent_supplies = 1, /* We only need MICVDD */
957 },
958 { .name = "arizona-haptics" },
959 { .name = "arizona-pwm" },
960 {
961 .name = "wm8997-codec",
962 .parent_supplies = wm8997_supplies,
963 .num_parent_supplies = ARRAY_SIZE(wm8997_supplies),
964 },
965 };
966
967 static const struct mfd_cell wm8998_devs[] = {
968 { .name = "arizona-micsupp" },
969 { .name = "arizona-gpio" },
970 {
971 .name = "arizona-extcon",
972 .parent_supplies = wm5102_supplies,
973 .num_parent_supplies = 1, /* We only need MICVDD */
974 },
975 { .name = "arizona-haptics" },
976 { .name = "arizona-pwm" },
977 {
978 .name = "wm8998-codec",
979 .parent_supplies = wm5102_supplies,
980 .num_parent_supplies = ARRAY_SIZE(wm5102_supplies),
981 },
982 };
983
arizona_dev_init(struct arizona * arizona)984 int arizona_dev_init(struct arizona *arizona)
985 {
986 static const char * const mclk_name[] = { "mclk1", "mclk2" };
987 struct device *dev = arizona->dev;
988 const char *type_name = NULL;
989 unsigned int reg, val;
990 int (*apply_patch)(struct arizona *) = NULL;
991 const struct mfd_cell *subdevs = NULL;
992 int n_subdevs = 0, ret, i;
993
994 dev_set_drvdata(arizona->dev, arizona);
995 mutex_init(&arizona->clk_lock);
996
997 if (dev_get_platdata(arizona->dev)) {
998 memcpy(&arizona->pdata, dev_get_platdata(arizona->dev),
999 sizeof(arizona->pdata));
1000 } else {
1001 ret = arizona_of_get_core_pdata(arizona);
1002 if (ret < 0)
1003 return ret;
1004 }
1005
1006 BUILD_BUG_ON(ARRAY_SIZE(arizona->mclk) != ARRAY_SIZE(mclk_name));
1007 for (i = 0; i < ARRAY_SIZE(arizona->mclk); i++) {
1008 arizona->mclk[i] = devm_clk_get(arizona->dev, mclk_name[i]);
1009 if (IS_ERR(arizona->mclk[i])) {
1010 dev_info(arizona->dev, "Failed to get %s: %ld\n",
1011 mclk_name[i], PTR_ERR(arizona->mclk[i]));
1012 arizona->mclk[i] = NULL;
1013 }
1014 }
1015
1016 regcache_cache_only(arizona->regmap, true);
1017
1018 switch (arizona->type) {
1019 case WM5102:
1020 case WM5110:
1021 case WM8280:
1022 case WM8997:
1023 case WM8998:
1024 case WM1814:
1025 case WM1831:
1026 case CS47L24:
1027 for (i = 0; i < ARRAY_SIZE(wm5102_core_supplies); i++)
1028 arizona->core_supplies[i].supply
1029 = wm5102_core_supplies[i];
1030 arizona->num_core_supplies = ARRAY_SIZE(wm5102_core_supplies);
1031 break;
1032 default:
1033 dev_err(arizona->dev, "Unknown device type %d\n",
1034 arizona->type);
1035 return -ENODEV;
1036 }
1037
1038 /* Mark DCVDD as external, LDO1 driver will clear if internal */
1039 arizona->external_dcvdd = true;
1040
1041 switch (arizona->type) {
1042 case WM1831:
1043 case CS47L24:
1044 break; /* No LDO1 regulator */
1045 default:
1046 ret = mfd_add_devices(arizona->dev, -1, early_devs,
1047 ARRAY_SIZE(early_devs), NULL, 0, NULL);
1048 if (ret != 0) {
1049 dev_err(dev, "Failed to add early children: %d\n", ret);
1050 return ret;
1051 }
1052 break;
1053 }
1054
1055 ret = devm_regulator_bulk_get(dev, arizona->num_core_supplies,
1056 arizona->core_supplies);
1057 if (ret != 0) {
1058 dev_err(dev, "Failed to request core supplies: %d\n",
1059 ret);
1060 goto err_early;
1061 }
1062
1063 /**
1064 * Don't use devres here because the only device we have to get
1065 * against is the MFD device and DCVDD will likely be supplied by
1066 * one of its children. Meaning that the regulator will be
1067 * destroyed by the time devres calls regulator put.
1068 */
1069 arizona->dcvdd = regulator_get(arizona->dev, "DCVDD");
1070 if (IS_ERR(arizona->dcvdd)) {
1071 ret = PTR_ERR(arizona->dcvdd);
1072 dev_err(dev, "Failed to request DCVDD: %d\n", ret);
1073 goto err_early;
1074 }
1075
1076 if (!arizona->pdata.reset) {
1077 /* Start out with /RESET low to put the chip into reset */
1078 arizona->pdata.reset = devm_gpiod_get(arizona->dev, "reset",
1079 GPIOD_OUT_LOW);
1080 if (IS_ERR(arizona->pdata.reset)) {
1081 ret = PTR_ERR(arizona->pdata.reset);
1082 if (ret == -EPROBE_DEFER)
1083 goto err_dcvdd;
1084
1085 dev_err(arizona->dev,
1086 "Reset GPIO missing/malformed: %d\n", ret);
1087
1088 arizona->pdata.reset = NULL;
1089 }
1090 }
1091
1092 ret = regulator_bulk_enable(arizona->num_core_supplies,
1093 arizona->core_supplies);
1094 if (ret != 0) {
1095 dev_err(dev, "Failed to enable core supplies: %d\n",
1096 ret);
1097 goto err_dcvdd;
1098 }
1099
1100 ret = regulator_enable(arizona->dcvdd);
1101 if (ret != 0) {
1102 dev_err(dev, "Failed to enable DCVDD: %d\n", ret);
1103 goto err_enable;
1104 }
1105
1106 arizona_disable_reset(arizona);
1107
1108 regcache_cache_only(arizona->regmap, false);
1109
1110 /* Verify that this is a chip we know about */
1111 ret = regmap_read(arizona->regmap, ARIZONA_SOFTWARE_RESET, ®);
1112 if (ret != 0) {
1113 dev_err(dev, "Failed to read ID register: %d\n", ret);
1114 goto err_reset;
1115 }
1116
1117 switch (reg) {
1118 case 0x5102:
1119 case 0x5110:
1120 case 0x6349:
1121 case 0x6363:
1122 case 0x8997:
1123 break;
1124 default:
1125 dev_err(arizona->dev, "Unknown device ID: %x\n", reg);
1126 ret = -ENODEV;
1127 goto err_reset;
1128 }
1129
1130 /* If we have a /RESET GPIO we'll already be reset */
1131 if (!arizona->pdata.reset) {
1132 ret = regmap_write(arizona->regmap, ARIZONA_SOFTWARE_RESET, 0);
1133 if (ret != 0) {
1134 dev_err(dev, "Failed to reset device: %d\n", ret);
1135 goto err_reset;
1136 }
1137
1138 usleep_range(1000, 5000);
1139 }
1140
1141 /* Ensure device startup is complete */
1142 switch (arizona->type) {
1143 case WM5102:
1144 ret = regmap_read(arizona->regmap,
1145 ARIZONA_WRITE_SEQUENCER_CTRL_3, &val);
1146 if (ret) {
1147 dev_err(dev,
1148 "Failed to check write sequencer state: %d\n",
1149 ret);
1150 } else if (val & 0x01) {
1151 ret = wm5102_clear_write_sequencer(arizona);
1152 if (ret)
1153 return ret;
1154 }
1155 break;
1156 default:
1157 break;
1158 }
1159
1160 ret = arizona_wait_for_boot(arizona);
1161 if (ret) {
1162 dev_err(arizona->dev, "Device failed initial boot: %d\n", ret);
1163 goto err_reset;
1164 }
1165
1166 /* Read the device ID information & do device specific stuff */
1167 ret = regmap_read(arizona->regmap, ARIZONA_SOFTWARE_RESET, ®);
1168 if (ret != 0) {
1169 dev_err(dev, "Failed to read ID register: %d\n", ret);
1170 goto err_reset;
1171 }
1172
1173 ret = regmap_read(arizona->regmap, ARIZONA_DEVICE_REVISION,
1174 &arizona->rev);
1175 if (ret != 0) {
1176 dev_err(dev, "Failed to read revision register: %d\n", ret);
1177 goto err_reset;
1178 }
1179 arizona->rev &= ARIZONA_DEVICE_REVISION_MASK;
1180
1181 switch (reg) {
1182 case 0x5102:
1183 if (IS_ENABLED(CONFIG_MFD_WM5102)) {
1184 type_name = "WM5102";
1185 if (arizona->type != WM5102) {
1186 dev_warn(arizona->dev,
1187 "WM5102 registered as %d\n",
1188 arizona->type);
1189 arizona->type = WM5102;
1190 }
1191
1192 apply_patch = wm5102_patch;
1193 arizona->rev &= 0x7;
1194 subdevs = wm5102_devs;
1195 n_subdevs = ARRAY_SIZE(wm5102_devs);
1196 }
1197 break;
1198 case 0x5110:
1199 if (IS_ENABLED(CONFIG_MFD_WM5110)) {
1200 switch (arizona->type) {
1201 case WM5110:
1202 type_name = "WM5110";
1203 break;
1204 case WM8280:
1205 type_name = "WM8280";
1206 break;
1207 default:
1208 type_name = "WM5110";
1209 dev_warn(arizona->dev,
1210 "WM5110 registered as %d\n",
1211 arizona->type);
1212 arizona->type = WM5110;
1213 break;
1214 }
1215
1216 apply_patch = wm5110_patch;
1217 subdevs = wm5110_devs;
1218 n_subdevs = ARRAY_SIZE(wm5110_devs);
1219 }
1220 break;
1221 case 0x6363:
1222 if (IS_ENABLED(CONFIG_MFD_CS47L24)) {
1223 switch (arizona->type) {
1224 case CS47L24:
1225 type_name = "CS47L24";
1226 break;
1227
1228 case WM1831:
1229 type_name = "WM1831";
1230 break;
1231
1232 default:
1233 dev_warn(arizona->dev,
1234 "CS47L24 registered as %d\n",
1235 arizona->type);
1236 arizona->type = CS47L24;
1237 break;
1238 }
1239
1240 apply_patch = cs47l24_patch;
1241 subdevs = cs47l24_devs;
1242 n_subdevs = ARRAY_SIZE(cs47l24_devs);
1243 }
1244 break;
1245 case 0x8997:
1246 if (IS_ENABLED(CONFIG_MFD_WM8997)) {
1247 type_name = "WM8997";
1248 if (arizona->type != WM8997) {
1249 dev_warn(arizona->dev,
1250 "WM8997 registered as %d\n",
1251 arizona->type);
1252 arizona->type = WM8997;
1253 }
1254
1255 apply_patch = wm8997_patch;
1256 subdevs = wm8997_devs;
1257 n_subdevs = ARRAY_SIZE(wm8997_devs);
1258 }
1259 break;
1260 case 0x6349:
1261 if (IS_ENABLED(CONFIG_MFD_WM8998)) {
1262 switch (arizona->type) {
1263 case WM8998:
1264 type_name = "WM8998";
1265 break;
1266
1267 case WM1814:
1268 type_name = "WM1814";
1269 break;
1270
1271 default:
1272 type_name = "WM8998";
1273 dev_warn(arizona->dev,
1274 "WM8998 registered as %d\n",
1275 arizona->type);
1276 arizona->type = WM8998;
1277 }
1278
1279 apply_patch = wm8998_patch;
1280 subdevs = wm8998_devs;
1281 n_subdevs = ARRAY_SIZE(wm8998_devs);
1282 }
1283 break;
1284 default:
1285 dev_err(arizona->dev, "Unknown device ID %x\n", reg);
1286 ret = -ENODEV;
1287 goto err_reset;
1288 }
1289
1290 if (!subdevs) {
1291 dev_err(arizona->dev,
1292 "No kernel support for device ID %x\n", reg);
1293 ret = -ENODEV;
1294 goto err_reset;
1295 }
1296
1297 dev_info(dev, "%s revision %c\n", type_name, arizona->rev + 'A');
1298
1299 if (apply_patch) {
1300 ret = apply_patch(arizona);
1301 if (ret != 0) {
1302 dev_err(arizona->dev, "Failed to apply patch: %d\n",
1303 ret);
1304 goto err_reset;
1305 }
1306
1307 switch (arizona->type) {
1308 case WM5102:
1309 ret = wm5102_apply_hardware_patch(arizona);
1310 if (ret) {
1311 dev_err(arizona->dev,
1312 "Failed to apply hardware patch: %d\n",
1313 ret);
1314 goto err_reset;
1315 }
1316 break;
1317 case WM5110:
1318 case WM8280:
1319 ret = wm5110_apply_sleep_patch(arizona);
1320 if (ret) {
1321 dev_err(arizona->dev,
1322 "Failed to apply sleep patch: %d\n",
1323 ret);
1324 goto err_reset;
1325 }
1326 break;
1327 default:
1328 break;
1329 }
1330 }
1331
1332 for (i = 0; i < ARRAY_SIZE(arizona->pdata.gpio_defaults); i++) {
1333 if (!arizona->pdata.gpio_defaults[i])
1334 continue;
1335
1336 regmap_write(arizona->regmap, ARIZONA_GPIO1_CTRL + i,
1337 arizona->pdata.gpio_defaults[i]);
1338 }
1339
1340 /* Chip default */
1341 if (!arizona->pdata.clk32k_src)
1342 arizona->pdata.clk32k_src = ARIZONA_32KZ_MCLK2;
1343
1344 switch (arizona->pdata.clk32k_src) {
1345 case ARIZONA_32KZ_MCLK1:
1346 case ARIZONA_32KZ_MCLK2:
1347 regmap_update_bits(arizona->regmap, ARIZONA_CLOCK_32K_1,
1348 ARIZONA_CLK_32K_SRC_MASK,
1349 arizona->pdata.clk32k_src - 1);
1350 arizona_clk32k_enable(arizona);
1351 break;
1352 case ARIZONA_32KZ_NONE:
1353 regmap_update_bits(arizona->regmap, ARIZONA_CLOCK_32K_1,
1354 ARIZONA_CLK_32K_SRC_MASK, 2);
1355 break;
1356 default:
1357 dev_err(arizona->dev, "Invalid 32kHz clock source: %d\n",
1358 arizona->pdata.clk32k_src);
1359 ret = -EINVAL;
1360 goto err_reset;
1361 }
1362
1363 for (i = 0; i < ARIZONA_MAX_MICBIAS; i++) {
1364 if (!arizona->pdata.micbias[i].mV &&
1365 !arizona->pdata.micbias[i].bypass)
1366 continue;
1367
1368 /* Apply default for bypass mode */
1369 if (!arizona->pdata.micbias[i].mV)
1370 arizona->pdata.micbias[i].mV = 2800;
1371
1372 val = (arizona->pdata.micbias[i].mV - 1500) / 100;
1373
1374 val <<= ARIZONA_MICB1_LVL_SHIFT;
1375
1376 if (arizona->pdata.micbias[i].ext_cap)
1377 val |= ARIZONA_MICB1_EXT_CAP;
1378
1379 if (arizona->pdata.micbias[i].discharge)
1380 val |= ARIZONA_MICB1_DISCH;
1381
1382 if (arizona->pdata.micbias[i].soft_start)
1383 val |= ARIZONA_MICB1_RATE;
1384
1385 if (arizona->pdata.micbias[i].bypass)
1386 val |= ARIZONA_MICB1_BYPASS;
1387
1388 regmap_update_bits(arizona->regmap,
1389 ARIZONA_MIC_BIAS_CTRL_1 + i,
1390 ARIZONA_MICB1_LVL_MASK |
1391 ARIZONA_MICB1_EXT_CAP |
1392 ARIZONA_MICB1_DISCH |
1393 ARIZONA_MICB1_BYPASS |
1394 ARIZONA_MICB1_RATE, val);
1395 }
1396
1397 pm_runtime_set_active(arizona->dev);
1398 pm_runtime_enable(arizona->dev);
1399
1400 /* Set up for interrupts */
1401 ret = arizona_irq_init(arizona);
1402 if (ret != 0)
1403 goto err_pm;
1404
1405 pm_runtime_set_autosuspend_delay(arizona->dev, 100);
1406 pm_runtime_use_autosuspend(arizona->dev);
1407
1408 arizona_request_irq(arizona, ARIZONA_IRQ_CLKGEN_ERR, "CLKGEN error",
1409 arizona_clkgen_err, arizona);
1410 arizona_request_irq(arizona, ARIZONA_IRQ_OVERCLOCKED, "Overclocked",
1411 arizona_overclocked, arizona);
1412 arizona_request_irq(arizona, ARIZONA_IRQ_UNDERCLOCKED, "Underclocked",
1413 arizona_underclocked, arizona);
1414
1415 ret = mfd_add_devices(arizona->dev, PLATFORM_DEVID_NONE,
1416 subdevs, n_subdevs, NULL, 0, NULL);
1417
1418 if (ret) {
1419 dev_err(arizona->dev, "Failed to add subdevices: %d\n", ret);
1420 goto err_irq;
1421 }
1422
1423 return 0;
1424
1425 err_irq:
1426 arizona_irq_exit(arizona);
1427 err_pm:
1428 pm_runtime_disable(arizona->dev);
1429
1430 switch (arizona->pdata.clk32k_src) {
1431 case ARIZONA_32KZ_MCLK1:
1432 case ARIZONA_32KZ_MCLK2:
1433 arizona_clk32k_disable(arizona);
1434 break;
1435 default:
1436 break;
1437 }
1438 err_reset:
1439 arizona_enable_reset(arizona);
1440 regulator_disable(arizona->dcvdd);
1441 err_enable:
1442 regulator_bulk_disable(arizona->num_core_supplies,
1443 arizona->core_supplies);
1444 err_dcvdd:
1445 regulator_put(arizona->dcvdd);
1446 err_early:
1447 mfd_remove_devices(dev);
1448 return ret;
1449 }
1450 EXPORT_SYMBOL_GPL(arizona_dev_init);
1451
arizona_dev_exit(struct arizona * arizona)1452 int arizona_dev_exit(struct arizona *arizona)
1453 {
1454 disable_irq(arizona->irq);
1455 pm_runtime_disable(arizona->dev);
1456
1457 regulator_disable(arizona->dcvdd);
1458 regulator_put(arizona->dcvdd);
1459
1460 switch (arizona->pdata.clk32k_src) {
1461 case ARIZONA_32KZ_MCLK1:
1462 case ARIZONA_32KZ_MCLK2:
1463 arizona_clk32k_disable(arizona);
1464 break;
1465 default:
1466 break;
1467 }
1468
1469 mfd_remove_devices(arizona->dev);
1470 arizona_free_irq(arizona, ARIZONA_IRQ_UNDERCLOCKED, arizona);
1471 arizona_free_irq(arizona, ARIZONA_IRQ_OVERCLOCKED, arizona);
1472 arizona_free_irq(arizona, ARIZONA_IRQ_CLKGEN_ERR, arizona);
1473 arizona_irq_exit(arizona);
1474 arizona_enable_reset(arizona);
1475
1476 regulator_bulk_disable(arizona->num_core_supplies,
1477 arizona->core_supplies);
1478 return 0;
1479 }
1480 EXPORT_SYMBOL_GPL(arizona_dev_exit);
1481
