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mfd: arizona: Support use of external DCVDD
[linux-2.6-block.git] / drivers / mfd / arizona-core.c
CommitLineData
3cc72986
MB		 1/*
2 * Arizona core driver
3 *
4 * Copyright 2012 Wolfson Microelectronics plc
5 *
6 * Author: Mark Brown <broonie@opensource.wolfsonmicro.com>
7 *
8 * This program is free software; you can redistribute it and/or modify
9 * it under the terms of the GNU General Public License version 2 as
10 * published by the Free Software Foundation.
11 */
12
13#include <linux/delay.h>
59db9691 14#include <linux/err.h>
3cc72986
MB		 15#include <linux/gpio.h>
16#include <linux/interrupt.h>
17#include <linux/mfd/core.h>
18#include <linux/module.h>
d781009c
MB		 19#include <linux/of.h>
20#include <linux/of_device.h>
21#include <linux/of_gpio.h>
3cc72986
MB		 22#include <linux/pm_runtime.h>
23#include <linux/regmap.h>
24#include <linux/regulator/consumer.h>
5927467d 25#include <linux/regulator/machine.h>
3cc72986
MB		 26#include <linux/slab.h>
27
28#include <linux/mfd/arizona/core.h>
29#include <linux/mfd/arizona/registers.h>
30
31#include "arizona.h"
32
33static const char *wm5102_core_supplies[] = {
34 "AVDD",
35 "DBVDD1",
3cc72986
MB		 36};
37
38int arizona_clk32k_enable(struct arizona *arizona)
39{
40 int ret = 0;
41
42 mutex_lock(&arizona->clk_lock);
43
44 arizona->clk32k_ref++;
45
247fa192
MB		 46 if (arizona->clk32k_ref == 1) {
47 switch (arizona->pdata.clk32k_src) {
48 case ARIZONA_32KZ_MCLK1:
49 ret = pm_runtime_get_sync(arizona->dev);
50 if (ret != 0)
51 goto out;
52 break;
53 }
54
3cc72986
MB		 55 ret = regmap_update_bits(arizona->regmap, ARIZONA_CLOCK_32K_1,
56 ARIZONA_CLK_32K_ENA,
57 ARIZONA_CLK_32K_ENA);
247fa192 58 }
3cc72986 59
247fa192 60out:
3cc72986
MB		 61 if (ret != 0)
62 arizona->clk32k_ref--;
63
64 mutex_unlock(&arizona->clk_lock);
65
66 return ret;
67}
68EXPORT_SYMBOL_GPL(arizona_clk32k_enable);
69
70int arizona_clk32k_disable(struct arizona *arizona)
71{
72 int ret = 0;
73
74 mutex_lock(&arizona->clk_lock);
75
76 BUG_ON(arizona->clk32k_ref <= 0);
77
78 arizona->clk32k_ref--;
79
247fa192 80 if (arizona->clk32k_ref == 0) {
3cc72986
MB		 81 regmap_update_bits(arizona->regmap, ARIZONA_CLOCK_32K_1,
82 ARIZONA_CLK_32K_ENA, 0);
83
247fa192
MB		 84 switch (arizona->pdata.clk32k_src) {
85 case ARIZONA_32KZ_MCLK1:
86 pm_runtime_put_sync(arizona->dev);
87 break;
88 }
89 }
90
3cc72986
MB		 91 mutex_unlock(&arizona->clk_lock);
92
93 return ret;
94}
95EXPORT_SYMBOL_GPL(arizona_clk32k_disable);
96
97static irqreturn_t arizona_clkgen_err(int irq, void *data)
98{
99 struct arizona *arizona = data;
100
101 dev_err(arizona->dev, "CLKGEN error\n");
102
103 return IRQ_HANDLED;
104}
105
106static irqreturn_t arizona_underclocked(int irq, void *data)
107{
108 struct arizona *arizona = data;
109 unsigned int val;
110 int ret;
111
112 ret = regmap_read(arizona->regmap, ARIZONA_INTERRUPT_RAW_STATUS_8,
113 &val);
114 if (ret != 0) {
115 dev_err(arizona->dev, "Failed to read underclock status: %d\n",
116 ret);
117 return IRQ_NONE;
118 }
119
3cc72986
MB		 120 if (val & ARIZONA_AIF3_UNDERCLOCKED_STS)
121 dev_err(arizona->dev, "AIF3 underclocked\n");
122 if (val & ARIZONA_AIF2_UNDERCLOCKED_STS)
3ebef34d
CK		 123 dev_err(arizona->dev, "AIF2 underclocked\n");
124 if (val & ARIZONA_AIF1_UNDERCLOCKED_STS)
3cc72986
MB		 125 dev_err(arizona->dev, "AIF1 underclocked\n");
126 if (val & ARIZONA_ISRC2_UNDERCLOCKED_STS)
127 dev_err(arizona->dev, "ISRC2 underclocked\n");
128 if (val & ARIZONA_ISRC1_UNDERCLOCKED_STS)
129 dev_err(arizona->dev, "ISRC1 underclocked\n");
130 if (val & ARIZONA_FX_UNDERCLOCKED_STS)
131 dev_err(arizona->dev, "FX underclocked\n");
132 if (val & ARIZONA_ASRC_UNDERCLOCKED_STS)
133 dev_err(arizona->dev, "ASRC underclocked\n");
134 if (val & ARIZONA_DAC_UNDERCLOCKED_STS)
135 dev_err(arizona->dev, "DAC underclocked\n");
136 if (val & ARIZONA_ADC_UNDERCLOCKED_STS)
137 dev_err(arizona->dev, "ADC underclocked\n");
138 if (val & ARIZONA_MIXER_UNDERCLOCKED_STS)
648a9880 139 dev_err(arizona->dev, "Mixer dropped sample\n");
3cc72986
MB		 140
141 return IRQ_HANDLED;
142}
143
144static irqreturn_t arizona_overclocked(int irq, void *data)
145{
146 struct arizona *arizona = data;
147 unsigned int val[2];
148 int ret;
149
150 ret = regmap_bulk_read(arizona->regmap, ARIZONA_INTERRUPT_RAW_STATUS_6,
151 &val[0], 2);
152 if (ret != 0) {
153 dev_err(arizona->dev, "Failed to read overclock status: %d\n",
154 ret);
155 return IRQ_NONE;
156 }
157
158 if (val[0] & ARIZONA_PWM_OVERCLOCKED_STS)
159 dev_err(arizona->dev, "PWM overclocked\n");
160 if (val[0] & ARIZONA_FX_CORE_OVERCLOCKED_STS)
161 dev_err(arizona->dev, "FX core overclocked\n");
162 if (val[0] & ARIZONA_DAC_SYS_OVERCLOCKED_STS)
163 dev_err(arizona->dev, "DAC SYS overclocked\n");
164 if (val[0] & ARIZONA_DAC_WARP_OVERCLOCKED_STS)
165 dev_err(arizona->dev, "DAC WARP overclocked\n");
166 if (val[0] & ARIZONA_ADC_OVERCLOCKED_STS)
167 dev_err(arizona->dev, "ADC overclocked\n");
168 if (val[0] & ARIZONA_MIXER_OVERCLOCKED_STS)
169 dev_err(arizona->dev, "Mixer overclocked\n");
170 if (val[0] & ARIZONA_AIF3_SYNC_OVERCLOCKED_STS)
171 dev_err(arizona->dev, "AIF3 overclocked\n");
172 if (val[0] & ARIZONA_AIF2_SYNC_OVERCLOCKED_STS)
173 dev_err(arizona->dev, "AIF2 overclocked\n");
174 if (val[0] & ARIZONA_AIF1_SYNC_OVERCLOCKED_STS)
175 dev_err(arizona->dev, "AIF1 overclocked\n");
176 if (val[0] & ARIZONA_PAD_CTRL_OVERCLOCKED_STS)
177 dev_err(arizona->dev, "Pad control overclocked\n");
178
179 if (val[1] & ARIZONA_SLIMBUS_SUBSYS_OVERCLOCKED_STS)
180 dev_err(arizona->dev, "Slimbus subsystem overclocked\n");
181 if (val[1] & ARIZONA_SLIMBUS_ASYNC_OVERCLOCKED_STS)
182 dev_err(arizona->dev, "Slimbus async overclocked\n");
183 if (val[1] & ARIZONA_SLIMBUS_SYNC_OVERCLOCKED_STS)
184 dev_err(arizona->dev, "Slimbus sync overclocked\n");
185 if (val[1] & ARIZONA_ASRC_ASYNC_SYS_OVERCLOCKED_STS)
186 dev_err(arizona->dev, "ASRC async system overclocked\n");
187 if (val[1] & ARIZONA_ASRC_ASYNC_WARP_OVERCLOCKED_STS)
188 dev_err(arizona->dev, "ASRC async WARP overclocked\n");
189 if (val[1] & ARIZONA_ASRC_SYNC_SYS_OVERCLOCKED_STS)
190 dev_err(arizona->dev, "ASRC sync system overclocked\n");
191 if (val[1] & ARIZONA_ASRC_SYNC_WARP_OVERCLOCKED_STS)
192 dev_err(arizona->dev, "ASRC sync WARP overclocked\n");
193 if (val[1] & ARIZONA_ADSP2_1_OVERCLOCKED_STS)
194 dev_err(arizona->dev, "DSP1 overclocked\n");
195 if (val[1] & ARIZONA_ISRC2_OVERCLOCKED_STS)
196 dev_err(arizona->dev, "ISRC2 overclocked\n");
197 if (val[1] & ARIZONA_ISRC1_OVERCLOCKED_STS)
198 dev_err(arizona->dev, "ISRC1 overclocked\n");
199
200 return IRQ_HANDLED;
201}
202
9d53dfdc
CK		 203static int arizona_poll_reg(struct arizona *arizona,
204 int timeout, unsigned int reg,
205 unsigned int mask, unsigned int target)
3cc72986 206{
9d53dfdc 207 unsigned int val = 0;
3cc72986
MB		 208 int ret, i;
209
9d53dfdc
CK		 210 for (i = 0; i < timeout; i++) {
211 ret = regmap_read(arizona->regmap, reg, &val);
3cc72986 212 if (ret != 0) {
9d53dfdc
CK		 213 dev_err(arizona->dev, "Failed to read reg %u: %d\n",
214 reg, ret);
cfe775ce 215 continue;
3cc72986
MB		 216 }
217
9d53dfdc
CK		 218 if ((val & mask) == target)
219 return 0;
220
221 msleep(1);
3cc72986
MB		 222 }
223
9d53dfdc
CK		 224 dev_err(arizona->dev, "Polling reg %u timed out: %x\n", reg, val);
225 return -ETIMEDOUT;
226}
227
228static int arizona_wait_for_boot(struct arizona *arizona)
229{
230 int ret;
231
232 /*
233 * We can't use an interrupt as we need to runtime resume to do so,
234 * we won't race with the interrupt handler as it'll be blocked on
235 * runtime resume.
236 */
237 ret = arizona_poll_reg(arizona, 5, ARIZONA_INTERRUPT_RAW_STATUS_5,
238 ARIZONA_BOOT_DONE_STS, ARIZONA_BOOT_DONE_STS);
239
240 if (!ret)
3cc72986
MB		 241 regmap_write(arizona->regmap, ARIZONA_INTERRUPT_STATUS_5,
242 ARIZONA_BOOT_DONE_STS);
3cc72986
MB		 243
244 pm_runtime_mark_last_busy(arizona->dev);
245
9d53dfdc 246 return ret;
3cc72986
MB		 247}
248
e80436bb
CK		 249static int arizona_apply_hardware_patch(struct arizona* arizona)
250{
251 unsigned int fll, sysclk;
252 int ret, err;
253
254 regcache_cache_bypass(arizona->regmap, true);
255
256 /* Cache existing FLL and SYSCLK settings */
257 ret = regmap_read(arizona->regmap, ARIZONA_FLL1_CONTROL_1, &fll);
258 if (ret != 0) {
259 dev_err(arizona->dev, "Failed to cache FLL settings: %d\n",
260 ret);
261 return ret;
262 }
263 ret = regmap_read(arizona->regmap, ARIZONA_SYSTEM_CLOCK_1, &sysclk);
264 if (ret != 0) {
265 dev_err(arizona->dev, "Failed to cache SYSCLK settings: %d\n",
266 ret);
267 return ret;
268 }
269
270 /* Start up SYSCLK using the FLL in free running mode */
271 ret = regmap_write(arizona->regmap, ARIZONA_FLL1_CONTROL_1,
272 ARIZONA_FLL1_ENA | ARIZONA_FLL1_FREERUN);
273 if (ret != 0) {
274 dev_err(arizona->dev,
275 "Failed to start FLL in freerunning mode: %d\n",
276 ret);
277 return ret;
278 }
279 ret = arizona_poll_reg(arizona, 25, ARIZONA_INTERRUPT_RAW_STATUS_5,
280 ARIZONA_FLL1_CLOCK_OK_STS,
281 ARIZONA_FLL1_CLOCK_OK_STS);
282 if (ret != 0) {
283 ret = -ETIMEDOUT;
284 goto err_fll;
285 }
286
287 ret = regmap_write(arizona->regmap, ARIZONA_SYSTEM_CLOCK_1, 0x0144);
288 if (ret != 0) {
289 dev_err(arizona->dev, "Failed to start SYSCLK: %d\n", ret);
290 goto err_fll;
291 }
292
293 /* Start the write sequencer and wait for it to finish */
294 ret = regmap_write(arizona->regmap, ARIZONA_WRITE_SEQUENCER_CTRL_0,
295 ARIZONA_WSEQ_ENA | ARIZONA_WSEQ_START | 160);
296 if (ret != 0) {
297 dev_err(arizona->dev, "Failed to start write sequencer: %d\n",
298 ret);
299 goto err_sysclk;
300 }
301 ret = arizona_poll_reg(arizona, 5, ARIZONA_WRITE_SEQUENCER_CTRL_1,
302 ARIZONA_WSEQ_BUSY, 0);
303 if (ret != 0) {
304 regmap_write(arizona->regmap, ARIZONA_WRITE_SEQUENCER_CTRL_0,
305 ARIZONA_WSEQ_ABORT);
306 ret = -ETIMEDOUT;
307 }
308
309err_sysclk:
310 err = regmap_write(arizona->regmap, ARIZONA_SYSTEM_CLOCK_1, sysclk);
311 if (err != 0) {
312 dev_err(arizona->dev,
313 "Failed to re-apply old SYSCLK settings: %d\n",
314 err);
315 }
316
317err_fll:
318 err = regmap_write(arizona->regmap, ARIZONA_FLL1_CONTROL_1, fll);
319 if (err != 0) {
320 dev_err(arizona->dev,
321 "Failed to re-apply old FLL settings: %d\n",
322 err);
323 }
324
325 regcache_cache_bypass(arizona->regmap, false);
326
327 if (ret != 0)
328 return ret;
329 else
330 return err;
331}
332
3cc72986
MB		 333#ifdef CONFIG_PM_RUNTIME
334static int arizona_runtime_resume(struct device *dev)
335{
336 struct arizona *arizona = dev_get_drvdata(dev);
337 int ret;
338
508c8299
MB		 339 dev_dbg(arizona->dev, "Leaving AoD mode\n");
340
59db9691
MB		 341 ret = regulator_enable(arizona->dcvdd);
342 if (ret != 0) {
343 dev_err(arizona->dev, "Failed to enable DCVDD: %d\n", ret);
344 return ret;
345 }
3cc72986
MB		 346
347 regcache_cache_only(arizona->regmap, false);
348
4c9bb8bc
CK		 349 switch (arizona->type) {
350 case WM5102:
5927467d
MB		 351 if (arizona->external_dcvdd) {
352 ret = regmap_update_bits(arizona->regmap,
353 ARIZONA_ISOLATION_CONTROL,
354 ARIZONA_ISOLATE_DCVDD1, 0);
355 if (ret != 0) {
356 dev_err(arizona->dev,
357 "Failed to connect DCVDD: %d\n", ret);
358 goto err;
359 }
360 }
361
4c9bb8bc
CK		 362 ret = wm5102_patch(arizona);
363 if (ret != 0) {
364 dev_err(arizona->dev, "Failed to apply patch: %d\n",
365 ret);
366 goto err;
367 }
e80436bb
CK		 368
369 ret = arizona_apply_hardware_patch(arizona);
370 if (ret != 0) {
371 dev_err(arizona->dev,
372 "Failed to apply hardware patch: %d\n",
373 ret);
374 goto err;
375 }
376 break;
377 default:
12bb68ed
CK		 378 ret = arizona_wait_for_boot(arizona);
379 if (ret != 0) {
380 goto err;
381 }
382
5927467d
MB		 383 if (arizona->external_dcvdd) {
384 ret = regmap_update_bits(arizona->regmap,
385 ARIZONA_ISOLATION_CONTROL,
386 ARIZONA_ISOLATE_DCVDD1, 0);
387 if (ret != 0) {
388 dev_err(arizona->dev,
389 "Failed to connect DCVDD: %d\n", ret);
390 goto err;
391 }
392 }
e80436bb 393 break;
4c9bb8bc
CK		 394 }
395
d9d03496
CK		 396 switch (arizona->type) {
397 case WM5102:
398 ret = wm5102_patch(arizona);
399 if (ret != 0) {
400 dev_err(arizona->dev, "Failed to apply patch: %d\n",
401 ret);
402 goto err;
403 }
404 default:
405 break;
406 }
407
9270bdf5
MB		 408 ret = regcache_sync(arizona->regmap);
409 if (ret != 0) {
410 dev_err(arizona->dev, "Failed to restore register cache\n");
4816bd1c 411 goto err;
9270bdf5 412 }
3cc72986
MB		 413
414 return 0;
4816bd1c
MB		 415
416err:
417 regcache_cache_only(arizona->regmap, true);
418 regulator_disable(arizona->dcvdd);
419 return ret;
3cc72986
MB		 420}
421
422static int arizona_runtime_suspend(struct device *dev)
423{
424 struct arizona *arizona = dev_get_drvdata(dev);
5927467d 425 int ret;
3cc72986 426
508c8299
MB		 427 dev_dbg(arizona->dev, "Entering AoD mode\n");
428
5927467d
MB		 429 if (arizona->external_dcvdd) {
430 ret = regmap_update_bits(arizona->regmap,
431 ARIZONA_ISOLATION_CONTROL,
432 ARIZONA_ISOLATE_DCVDD1,
433 ARIZONA_ISOLATE_DCVDD1);
434 if (ret != 0) {
435 dev_err(arizona->dev, "Failed to isolate DCVDD: %d\n",
436 ret);
437 return ret;
438 }
439 }
440
59db9691
MB		 441 regulator_disable(arizona->dcvdd);
442 regcache_cache_only(arizona->regmap, true);
443 regcache_mark_dirty(arizona->regmap);
3cc72986
MB		 444
445 return 0;
446}
447#endif
448
dc781d0e 449#ifdef CONFIG_PM_SLEEP
67c99296
MB		 450static int arizona_suspend(struct device *dev)
451{
452 struct arizona *arizona = dev_get_drvdata(dev);
453
454 dev_dbg(arizona->dev, "Suspend, disabling IRQ\n");
455 disable_irq(arizona->irq);
456
457 return 0;
458}
459
460static int arizona_suspend_late(struct device *dev)
461{
462 struct arizona *arizona = dev_get_drvdata(dev);
463
464 dev_dbg(arizona->dev, "Late suspend, reenabling IRQ\n");
465 enable_irq(arizona->irq);
466
467 return 0;
468}
469
dc781d0e
MB		 470static int arizona_resume_noirq(struct device *dev)
471{
472 struct arizona *arizona = dev_get_drvdata(dev);
473
474 dev_dbg(arizona->dev, "Early resume, disabling IRQ\n");
475 disable_irq(arizona->irq);
476
477 return 0;
478}
479
480static int arizona_resume(struct device *dev)
481{
482 struct arizona *arizona = dev_get_drvdata(dev);
483
484 dev_dbg(arizona->dev, "Late resume, reenabling IRQ\n");
485 enable_irq(arizona->irq);
486
487 return 0;
488}
489#endif
490
3cc72986
MB		 491const struct dev_pm_ops arizona_pm_ops = {
492 SET_RUNTIME_PM_OPS(arizona_runtime_suspend,
493 arizona_runtime_resume,
494 NULL)
67c99296 495 SET_SYSTEM_SLEEP_PM_OPS(arizona_suspend, arizona_resume)
dc781d0e 496#ifdef CONFIG_PM_SLEEP
67c99296 497 .suspend_late = arizona_suspend_late,
dc781d0e
MB		 498 .resume_noirq = arizona_resume_noirq,
499#endif
3cc72986
MB		 500};
501EXPORT_SYMBOL_GPL(arizona_pm_ops);
502
d781009c
MB		 503#ifdef CONFIG_OF
504int arizona_of_get_type(struct device *dev)
505{
506 const struct of_device_id *id = of_match_device(arizona_of_match, dev);
507
508 if (id)
509 return (int)id->data;
510 else
511 return 0;
512}
513EXPORT_SYMBOL_GPL(arizona_of_get_type);
514
515static int arizona_of_get_core_pdata(struct arizona *arizona)
516{
517 int ret, i;
518
519 arizona->pdata.reset = of_get_named_gpio(arizona->dev->of_node,
520 "wlf,reset", 0);
521 if (arizona->pdata.reset < 0)
522 arizona->pdata.reset = 0;
523
524 arizona->pdata.ldoena = of_get_named_gpio(arizona->dev->of_node,
525 "wlf,ldoena", 0);
526 if (arizona->pdata.ldoena < 0)
527 arizona->pdata.ldoena = 0;
528
529 ret = of_property_read_u32_array(arizona->dev->of_node,
530 "wlf,gpio-defaults",
531 arizona->pdata.gpio_defaults,
532 ARRAY_SIZE(arizona->pdata.gpio_defaults));
533 if (ret >= 0) {
534 /*
535 * All values are literal except out of range values
536 * which are chip default, translate into platform
537 * data which uses 0 as chip default and out of range
538 * as zero.
539 */
540 for (i = 0; i < ARRAY_SIZE(arizona->pdata.gpio_defaults); i++) {
541 if (arizona->pdata.gpio_defaults[i] > 0xffff)
542 arizona->pdata.gpio_defaults[i] = 0;
543 if (arizona->pdata.gpio_defaults[i] == 0)
544 arizona->pdata.gpio_defaults[i] = 0x10000;
545 }
546 } else {
547 dev_err(arizona->dev, "Failed to parse GPIO defaults: %d\n",
548 ret);
549 }
550
551 return 0;
552}
553
554const struct of_device_id arizona_of_match[] = {
555 { .compatible = "wlf,wm5102", .data = (void *)WM5102 },
556 { .compatible = "wlf,wm5110", .data = (void *)WM5110 },
557 {},
558};
559EXPORT_SYMBOL_GPL(arizona_of_match);
560#else
561static inline int arizona_of_get_core_pdata(struct arizona *arizona)
562{
563 return 0;
564}
565#endif
566
3cc72986
MB		 567static struct mfd_cell early_devs[] = {
568 { .name = "arizona-ldo1" },
569};
570
571static struct mfd_cell wm5102_devs[] = {
d7768111 572 { .name = "arizona-micsupp" },
3cc72986
MB		 573 { .name = "arizona-extcon" },
574 { .name = "arizona-gpio" },
503b1cac 575 { .name = "arizona-haptics" },
3cc72986
MB		 576 { .name = "arizona-pwm" },
577 { .name = "wm5102-codec" },
578};
579
e102befe 580static struct mfd_cell wm5110_devs[] = {
d7768111 581 { .name = "arizona-micsupp" },
e102befe
MB		 582 { .name = "arizona-extcon" },
583 { .name = "arizona-gpio" },
503b1cac 584 { .name = "arizona-haptics" },
e102befe
MB		 585 { .name = "arizona-pwm" },
586 { .name = "wm5110-codec" },
587};
588
f791be49 589int arizona_dev_init(struct arizona *arizona)
3cc72986
MB		 590{
591 struct device *dev = arizona->dev;
592 const char *type_name;
593 unsigned int reg, val;
62d62b59 594 int (*apply_patch)(struct arizona *) = NULL;
3cc72986
MB		 595 int ret, i;
596
597 dev_set_drvdata(arizona->dev, arizona);
598 mutex_init(&arizona->clk_lock);
599
d781009c
MB		 600 arizona_of_get_core_pdata(arizona);
601
3cc72986
MB		 602 if (dev_get_platdata(arizona->dev))
603 memcpy(&arizona->pdata, dev_get_platdata(arizona->dev),
604 sizeof(arizona->pdata));
605
606 regcache_cache_only(arizona->regmap, true);
607
608 switch (arizona->type) {
609 case WM5102:
e102befe 610 case WM5110:
3cc72986
MB		 611 for (i = 0; i < ARRAY_SIZE(wm5102_core_supplies); i++)
612 arizona->core_supplies[i].supply
613 = wm5102_core_supplies[i];
614 arizona->num_core_supplies = ARRAY_SIZE(wm5102_core_supplies);
615 break;
616 default:
617 dev_err(arizona->dev, "Unknown device type %d\n",
618 arizona->type);
619 return -EINVAL;
620 }
621
622 ret = mfd_add_devices(arizona->dev, -1, early_devs,
0848c94f 623 ARRAY_SIZE(early_devs), NULL, 0, NULL);
3cc72986
MB		 624 if (ret != 0) {
625 dev_err(dev, "Failed to add early children: %d\n", ret);
626 return ret;
627 }
628
629 ret = devm_regulator_bulk_get(dev, arizona->num_core_supplies,
630 arizona->core_supplies);
631 if (ret != 0) {
632 dev_err(dev, "Failed to request core supplies: %d\n",
633 ret);
634 goto err_early;
635 }
636
59db9691
MB		 637 arizona->dcvdd = devm_regulator_get(arizona->dev, "DCVDD");
638 if (IS_ERR(arizona->dcvdd)) {
639 ret = PTR_ERR(arizona->dcvdd);
640 dev_err(dev, "Failed to request DCVDD: %d\n", ret);
641 goto err_early;
642 }
643
87d3af4a
MB		 644 if (arizona->pdata.reset) {
645 /* Start out with /RESET low to put the chip into reset */
646 ret = gpio_request_one(arizona->pdata.reset,
647 GPIOF_DIR_OUT | GPIOF_INIT_LOW,
648 "arizona /RESET");
649 if (ret != 0) {
650 dev_err(dev, "Failed to request /RESET: %d\n", ret);
651 goto err_early;
652 }
653 }
654
3cc72986
MB		 655 ret = regulator_bulk_enable(arizona->num_core_supplies,
656 arizona->core_supplies);
657 if (ret != 0) {
658 dev_err(dev, "Failed to enable core supplies: %d\n",
659 ret);
660 goto err_early;
661 }
662
59db9691
MB		 663 ret = regulator_enable(arizona->dcvdd);
664 if (ret != 0) {
665 dev_err(dev, "Failed to enable DCVDD: %d\n", ret);
666 goto err_enable;
667 }
668
c25feaa5 669 if (arizona->pdata.reset) {
3cc72986 670 gpio_set_value_cansleep(arizona->pdata.reset, 1);
c25feaa5
CK		 671 msleep(1);
672 }
3cc72986 673
3cc72986
MB		 674 regcache_cache_only(arizona->regmap, false);
675
ca76ceb8 676 /* Verify that this is a chip we know about */
3cc72986
MB		 677 ret = regmap_read(arizona->regmap, ARIZONA_SOFTWARE_RESET, &reg);
678 if (ret != 0) {
679 dev_err(dev, "Failed to read ID register: %d\n", ret);
59db9691 680 goto err_reset;
3cc72986
MB		 681 }
682
3cc72986
MB		 683 switch (reg) {
684 case 0x5102:
e102befe 685 case 0x5110:
e102befe 686 break;
3cc72986 687 default:
ca76ceb8 688 dev_err(arizona->dev, "Unknown device ID: %x\n", reg);
59db9691 689 goto err_reset;
3cc72986
MB		 690 }
691
3cc72986
MB		 692 /* If we have a /RESET GPIO we'll already be reset */
693 if (!arizona->pdata.reset) {
46b9d13a
CK		 694 regcache_mark_dirty(arizona->regmap);
695
3cc72986
MB		 696 ret = regmap_write(arizona->regmap, ARIZONA_SOFTWARE_RESET, 0);
697 if (ret != 0) {
698 dev_err(dev, "Failed to reset device: %d\n", ret);
59db9691 699 goto err_reset;
3cc72986 700 }
46b9d13a 701
c25feaa5
CK		 702 msleep(1);
703
46b9d13a
CK		 704 ret = regcache_sync(arizona->regmap);
705 if (ret != 0) {
706 dev_err(dev, "Failed to sync device: %d\n", ret);
707 goto err_reset;
708 }
3cc72986
MB		 709 }
710
ca76ceb8 711 /* Ensure device startup is complete */
d955cba8
CK		 712 switch (arizona->type) {
713 case WM5102:
714 ret = regmap_read(arizona->regmap, 0x19, &val);
715 if (ret != 0)
716 dev_err(dev,
717 "Failed to check write sequencer state: %d\n",
718 ret);
719 else if (val & 0x01)
720 break;
721 /* Fall through */
722 default:
723 ret = arizona_wait_for_boot(arizona);
724 if (ret != 0) {
725 dev_err(arizona->dev,
726 "Device failed initial boot: %d\n", ret);
727 goto err_reset;
728 }
729 break;
af65a361 730 }
3cc72986 731
ca76ceb8
MB		 732 /* Read the device ID information & do device specific stuff */
733 ret = regmap_read(arizona->regmap, ARIZONA_SOFTWARE_RESET, &reg);
734 if (ret != 0) {
735 dev_err(dev, "Failed to read ID register: %d\n", ret);
736 goto err_reset;
737 }
738
739 ret = regmap_read(arizona->regmap, ARIZONA_DEVICE_REVISION,
740 &arizona->rev);
741 if (ret != 0) {
742 dev_err(dev, "Failed to read revision register: %d\n", ret);
743 goto err_reset;
744 }
745 arizona->rev &= ARIZONA_DEVICE_REVISION_MASK;
746
747 switch (reg) {
748#ifdef CONFIG_MFD_WM5102
749 case 0x5102:
750 type_name = "WM5102";
751 if (arizona->type != WM5102) {
752 dev_err(arizona->dev, "WM5102 registered as %d\n",
753 arizona->type);
754 arizona->type = WM5102;
755 }
756 apply_patch = wm5102_patch;
757 arizona->rev &= 0x7;
758 break;
759#endif
760#ifdef CONFIG_MFD_WM5110
761 case 0x5110:
762 type_name = "WM5110";
763 if (arizona->type != WM5110) {
764 dev_err(arizona->dev, "WM5110 registered as %d\n",
765 arizona->type);
766 arizona->type = WM5110;
767 }
768 apply_patch = wm5110_patch;
769 break;
770#endif
771 default:
772 dev_err(arizona->dev, "Unknown device ID %x\n", reg);
773 goto err_reset;
774 }
775
776 dev_info(dev, "%s revision %c\n", type_name, arizona->rev + 'A');
777
62d62b59
MB		 778 if (apply_patch) {
779 ret = apply_patch(arizona);
780 if (ret != 0) {
781 dev_err(arizona->dev, "Failed to apply patch: %d\n",
782 ret);
783 goto err_reset;
784 }
e80436bb
CK		 785
786 switch (arizona->type) {
787 case WM5102:
788 ret = arizona_apply_hardware_patch(arizona);
789 if (ret != 0) {
790 dev_err(arizona->dev,
791 "Failed to apply hardware patch: %d\n",
792 ret);
793 goto err_reset;
794 }
795 break;
796 default:
797 break;
798 }
62d62b59
MB		 799 }
800
3cc72986
MB		 801 for (i = 0; i < ARRAY_SIZE(arizona->pdata.gpio_defaults); i++) {
802 if (!arizona->pdata.gpio_defaults[i])
803 continue;
804
805 regmap_write(arizona->regmap, ARIZONA_GPIO1_CTRL + i,
806 arizona->pdata.gpio_defaults[i]);
807 }
808
5927467d
MB		 809 /*
810 * LDO1 can only be used to supply DCVDD so if it has no
811 * consumers then DCVDD is supplied externally.
812 */
813 if (arizona->pdata.ldo1 &&
814 arizona->pdata.ldo1->num_consumer_supplies == 0)
815 arizona->external_dcvdd = true;
816
3cc72986
MB		 817 pm_runtime_set_autosuspend_delay(arizona->dev, 100);
818 pm_runtime_use_autosuspend(arizona->dev);
819 pm_runtime_enable(arizona->dev);
820
821 /* Chip default */
822 if (!arizona->pdata.clk32k_src)
823 arizona->pdata.clk32k_src = ARIZONA_32KZ_MCLK2;
824
825 switch (arizona->pdata.clk32k_src) {
826 case ARIZONA_32KZ_MCLK1:
827 case ARIZONA_32KZ_MCLK2:
828 regmap_update_bits(arizona->regmap, ARIZONA_CLOCK_32K_1,
829 ARIZONA_CLK_32K_SRC_MASK,
830 arizona->pdata.clk32k_src - 1);
767c6dc0 831 arizona_clk32k_enable(arizona);
3cc72986
MB		 832 break;
833 case ARIZONA_32KZ_NONE:
834 regmap_update_bits(arizona->regmap, ARIZONA_CLOCK_32K_1,
835 ARIZONA_CLK_32K_SRC_MASK, 2);
836 break;
837 default:
838 dev_err(arizona->dev, "Invalid 32kHz clock source: %d\n",
839 arizona->pdata.clk32k_src);
840 ret = -EINVAL;
59db9691 841 goto err_reset;
3cc72986
MB		 842 }
843
3d91f828 844 for (i = 0; i < ARIZONA_MAX_MICBIAS; i++) {
544c7aad
MB		 845 if (!arizona->pdata.micbias[i].mV &&
846 !arizona->pdata.micbias[i].bypass)
3d91f828
MB		 847 continue;
848
544c7aad
MB		 849 /* Apply default for bypass mode */
850 if (!arizona->pdata.micbias[i].mV)
851 arizona->pdata.micbias[i].mV = 2800;
852
3d91f828 853 val = (arizona->pdata.micbias[i].mV - 1500) / 100;
544c7aad 854
3d91f828
MB		 855 val <<= ARIZONA_MICB1_LVL_SHIFT;
856
857 if (arizona->pdata.micbias[i].ext_cap)
858 val |= ARIZONA_MICB1_EXT_CAP;
859
860 if (arizona->pdata.micbias[i].discharge)
861 val |= ARIZONA_MICB1_DISCH;
862
863 if (arizona->pdata.micbias[i].fast_start)
864 val |= ARIZONA_MICB1_RATE;
865
544c7aad
MB		 866 if (arizona->pdata.micbias[i].bypass)
867 val |= ARIZONA_MICB1_BYPASS;
868
3d91f828
MB		 869 regmap_update_bits(arizona->regmap,
870 ARIZONA_MIC_BIAS_CTRL_1 + i,
871 ARIZONA_MICB1_LVL_MASK |
872 ARIZONA_MICB1_DISCH |
544c7aad 873 ARIZONA_MICB1_BYPASS |
3d91f828
MB		 874 ARIZONA_MICB1_RATE, val);
875 }
876
3cc72986
MB		 877 for (i = 0; i < ARIZONA_MAX_INPUT; i++) {
878 /* Default for both is 0 so noop with defaults */
879 val = arizona->pdata.dmic_ref[i]
880 << ARIZONA_IN1_DMIC_SUP_SHIFT;
881 val |= arizona->pdata.inmode[i] << ARIZONA_IN1_MODE_SHIFT;
882
883 regmap_update_bits(arizona->regmap,
884 ARIZONA_IN1L_CONTROL + (i * 8),
885 ARIZONA_IN1_DMIC_SUP_MASK |
886 ARIZONA_IN1_MODE_MASK, val);
887 }
888
889 for (i = 0; i < ARIZONA_MAX_OUTPUT; i++) {
890 /* Default is 0 so noop with defaults */
891 if (arizona->pdata.out_mono[i])
892 val = ARIZONA_OUT1_MONO;
893 else
894 val = 0;
895
896 regmap_update_bits(arizona->regmap,
897 ARIZONA_OUTPUT_PATH_CONFIG_1L + (i * 8),
898 ARIZONA_OUT1_MONO, val);
899 }
900
3cc72986
MB		 901 for (i = 0; i < ARIZONA_MAX_PDM_SPK; i++) {
902 if (arizona->pdata.spk_mute[i])
903 regmap_update_bits(arizona->regmap,
2a51da04 904 ARIZONA_PDM_SPK1_CTRL_1 + (i * 2),
3cc72986
MB		 905 ARIZONA_SPK1_MUTE_ENDIAN_MASK |
906 ARIZONA_SPK1_MUTE_SEQ1_MASK,
907 arizona->pdata.spk_mute[i]);
908
909 if (arizona->pdata.spk_fmt[i])
910 regmap_update_bits(arizona->regmap,
2a51da04 911 ARIZONA_PDM_SPK1_CTRL_2 + (i * 2),
3cc72986
MB		 912 ARIZONA_SPK1_FMT_MASK,
913 arizona->pdata.spk_fmt[i]);
914 }
915
916 /* Set up for interrupts */
917 ret = arizona_irq_init(arizona);
918 if (ret != 0)
59db9691 919 goto err_reset;
3cc72986
MB		 920
921 arizona_request_irq(arizona, ARIZONA_IRQ_CLKGEN_ERR, "CLKGEN error",
922 arizona_clkgen_err, arizona);
923 arizona_request_irq(arizona, ARIZONA_IRQ_OVERCLOCKED, "Overclocked",
924 arizona_overclocked, arizona);
925 arizona_request_irq(arizona, ARIZONA_IRQ_UNDERCLOCKED, "Underclocked",
926 arizona_underclocked, arizona);
927
928 switch (arizona->type) {
929 case WM5102:
930 ret = mfd_add_devices(arizona->dev, -1, wm5102_devs,
0848c94f 931 ARRAY_SIZE(wm5102_devs), NULL, 0, NULL);
e102befe
MB		 932 break;
933 case WM5110:
934 ret = mfd_add_devices(arizona->dev, -1, wm5110_devs,
78566afd 935 ARRAY_SIZE(wm5110_devs), NULL, 0, NULL);
3cc72986
MB		 936 break;
937 }
938
939 if (ret != 0) {
940 dev_err(arizona->dev, "Failed to add subdevices: %d\n", ret);
941 goto err_irq;
942 }
943
59db9691
MB		 944#ifdef CONFIG_PM_RUNTIME
945 regulator_disable(arizona->dcvdd);
946#endif
947
3cc72986
MB		 948 return 0;
949
950err_irq:
951 arizona_irq_exit(arizona);
3cc72986
MB		 952err_reset:
953 if (arizona->pdata.reset) {
87d3af4a 954 gpio_set_value_cansleep(arizona->pdata.reset, 0);
3cc72986
MB		 955 gpio_free(arizona->pdata.reset);
956 }
59db9691 957 regulator_disable(arizona->dcvdd);
3cc72986 958err_enable:
3a36a0db 959 regulator_bulk_disable(arizona->num_core_supplies,
3cc72986
MB		 960 arizona->core_supplies);
961err_early:
962 mfd_remove_devices(dev);
963 return ret;
964}
965EXPORT_SYMBOL_GPL(arizona_dev_init);
966
4740f73f 967int arizona_dev_exit(struct arizona *arizona)
3cc72986
MB		 968{
969 mfd_remove_devices(arizona->dev);
970 arizona_free_irq(arizona, ARIZONA_IRQ_UNDERCLOCKED, arizona);
971 arizona_free_irq(arizona, ARIZONA_IRQ_OVERCLOCKED, arizona);
972 arizona_free_irq(arizona, ARIZONA_IRQ_CLKGEN_ERR, arizona);
973 pm_runtime_disable(arizona->dev);
974 arizona_irq_exit(arizona);
1d017b6b
MB		 975 if (arizona->pdata.reset)
976 gpio_set_value_cansleep(arizona->pdata.reset, 0);
977 regulator_disable(arizona->dcvdd);
978 regulator_bulk_disable(ARRAY_SIZE(arizona->core_supplies),
979 arizona->core_supplies);
3cc72986
MB		 980 return 0;
981}
982EXPORT_SYMBOL_GPL(arizona_dev_exit);
Linux 6.x block layer and io_uring tree(s)