]> git.kernelconcepts.de Git - karo-tx-linux.git/blob - drivers/mfd/arizona-core.c
Merge tag 'perf-urgent-for-mingo' of git://git.kernel.org/pub/scm/linux/kernel/git...
[karo-tx-linux.git] / drivers / mfd / arizona-core.c
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>
14 #include <linux/err.h>
15 #include <linux/gpio.h>
16 #include <linux/interrupt.h>
17 #include <linux/mfd/core.h>
18 #include <linux/module.h>
19 #include <linux/pm_runtime.h>
20 #include <linux/regmap.h>
21 #include <linux/regulator/consumer.h>
22 #include <linux/slab.h>
23
24 #include <linux/mfd/arizona/core.h>
25 #include <linux/mfd/arizona/registers.h>
26
27 #include "arizona.h"
28
29 static const char *wm5102_core_supplies[] = {
30         "AVDD",
31         "DBVDD1",
32 };
33
34 int arizona_clk32k_enable(struct arizona *arizona)
35 {
36         int ret = 0;
37
38         mutex_lock(&arizona->clk_lock);
39
40         arizona->clk32k_ref++;
41
42         if (arizona->clk32k_ref == 1)
43                 ret = regmap_update_bits(arizona->regmap, ARIZONA_CLOCK_32K_1,
44                                          ARIZONA_CLK_32K_ENA,
45                                          ARIZONA_CLK_32K_ENA);
46
47         if (ret != 0)
48                 arizona->clk32k_ref--;
49
50         mutex_unlock(&arizona->clk_lock);
51
52         return ret;
53 }
54 EXPORT_SYMBOL_GPL(arizona_clk32k_enable);
55
56 int arizona_clk32k_disable(struct arizona *arizona)
57 {
58         int ret = 0;
59
60         mutex_lock(&arizona->clk_lock);
61
62         BUG_ON(arizona->clk32k_ref <= 0);
63
64         arizona->clk32k_ref--;
65
66         if (arizona->clk32k_ref == 0)
67                 regmap_update_bits(arizona->regmap, ARIZONA_CLOCK_32K_1,
68                                    ARIZONA_CLK_32K_ENA, 0);
69
70         mutex_unlock(&arizona->clk_lock);
71
72         return ret;
73 }
74 EXPORT_SYMBOL_GPL(arizona_clk32k_disable);
75
76 static irqreturn_t arizona_clkgen_err(int irq, void *data)
77 {
78         struct arizona *arizona = data;
79
80         dev_err(arizona->dev, "CLKGEN error\n");
81
82         return IRQ_HANDLED;
83 }
84
85 static irqreturn_t arizona_underclocked(int irq, void *data)
86 {
87         struct arizona *arizona = data;
88         unsigned int val;
89         int ret;
90
91         ret = regmap_read(arizona->regmap, ARIZONA_INTERRUPT_RAW_STATUS_8,
92                           &val);
93         if (ret != 0) {
94                 dev_err(arizona->dev, "Failed to read underclock status: %d\n",
95                         ret);
96                 return IRQ_NONE;
97         }
98
99         if (val & ARIZONA_AIF3_UNDERCLOCKED_STS)
100                 dev_err(arizona->dev, "AIF3 underclocked\n");
101         if (val & ARIZONA_AIF2_UNDERCLOCKED_STS)
102                 dev_err(arizona->dev, "AIF2 underclocked\n");
103         if (val & ARIZONA_AIF1_UNDERCLOCKED_STS)
104                 dev_err(arizona->dev, "AIF1 underclocked\n");
105         if (val & ARIZONA_ISRC2_UNDERCLOCKED_STS)
106                 dev_err(arizona->dev, "ISRC2 underclocked\n");
107         if (val & ARIZONA_ISRC1_UNDERCLOCKED_STS)
108                 dev_err(arizona->dev, "ISRC1 underclocked\n");
109         if (val & ARIZONA_FX_UNDERCLOCKED_STS)
110                 dev_err(arizona->dev, "FX underclocked\n");
111         if (val & ARIZONA_ASRC_UNDERCLOCKED_STS)
112                 dev_err(arizona->dev, "ASRC underclocked\n");
113         if (val & ARIZONA_DAC_UNDERCLOCKED_STS)
114                 dev_err(arizona->dev, "DAC underclocked\n");
115         if (val & ARIZONA_ADC_UNDERCLOCKED_STS)
116                 dev_err(arizona->dev, "ADC underclocked\n");
117         if (val & ARIZONA_MIXER_UNDERCLOCKED_STS)
118                 dev_err(arizona->dev, "Mixer dropped sample\n");
119
120         return IRQ_HANDLED;
121 }
122
123 static irqreturn_t arizona_overclocked(int irq, void *data)
124 {
125         struct arizona *arizona = data;
126         unsigned int val[2];
127         int ret;
128         
129         ret = regmap_bulk_read(arizona->regmap, ARIZONA_INTERRUPT_RAW_STATUS_6,
130                                &val[0], 2);
131         if (ret != 0) {
132                 dev_err(arizona->dev, "Failed to read overclock status: %d\n",
133                         ret);
134                 return IRQ_NONE;
135         }
136
137         if (val[0] & ARIZONA_PWM_OVERCLOCKED_STS)
138                 dev_err(arizona->dev, "PWM overclocked\n");
139         if (val[0] & ARIZONA_FX_CORE_OVERCLOCKED_STS)
140                 dev_err(arizona->dev, "FX core overclocked\n");
141         if (val[0] & ARIZONA_DAC_SYS_OVERCLOCKED_STS)
142                 dev_err(arizona->dev, "DAC SYS overclocked\n");
143         if (val[0] & ARIZONA_DAC_WARP_OVERCLOCKED_STS)
144                 dev_err(arizona->dev, "DAC WARP overclocked\n");
145         if (val[0] & ARIZONA_ADC_OVERCLOCKED_STS)
146                 dev_err(arizona->dev, "ADC overclocked\n");
147         if (val[0] & ARIZONA_MIXER_OVERCLOCKED_STS)
148                 dev_err(arizona->dev, "Mixer overclocked\n");
149         if (val[0] & ARIZONA_AIF3_SYNC_OVERCLOCKED_STS)
150                 dev_err(arizona->dev, "AIF3 overclocked\n");
151         if (val[0] & ARIZONA_AIF2_SYNC_OVERCLOCKED_STS)
152                 dev_err(arizona->dev, "AIF2 overclocked\n");
153         if (val[0] & ARIZONA_AIF1_SYNC_OVERCLOCKED_STS)
154                 dev_err(arizona->dev, "AIF1 overclocked\n");
155         if (val[0] & ARIZONA_PAD_CTRL_OVERCLOCKED_STS)
156                 dev_err(arizona->dev, "Pad control overclocked\n");
157
158         if (val[1] & ARIZONA_SLIMBUS_SUBSYS_OVERCLOCKED_STS)
159                 dev_err(arizona->dev, "Slimbus subsystem overclocked\n");
160         if (val[1] & ARIZONA_SLIMBUS_ASYNC_OVERCLOCKED_STS)
161                 dev_err(arizona->dev, "Slimbus async overclocked\n");
162         if (val[1] & ARIZONA_SLIMBUS_SYNC_OVERCLOCKED_STS)
163                 dev_err(arizona->dev, "Slimbus sync overclocked\n");
164         if (val[1] & ARIZONA_ASRC_ASYNC_SYS_OVERCLOCKED_STS)
165                 dev_err(arizona->dev, "ASRC async system overclocked\n");
166         if (val[1] & ARIZONA_ASRC_ASYNC_WARP_OVERCLOCKED_STS)
167                 dev_err(arizona->dev, "ASRC async WARP overclocked\n");
168         if (val[1] & ARIZONA_ASRC_SYNC_SYS_OVERCLOCKED_STS)
169                 dev_err(arizona->dev, "ASRC sync system overclocked\n");
170         if (val[1] & ARIZONA_ASRC_SYNC_WARP_OVERCLOCKED_STS)
171                 dev_err(arizona->dev, "ASRC sync WARP overclocked\n");
172         if (val[1] & ARIZONA_ADSP2_1_OVERCLOCKED_STS)
173                 dev_err(arizona->dev, "DSP1 overclocked\n");
174         if (val[1] & ARIZONA_ISRC2_OVERCLOCKED_STS)
175                 dev_err(arizona->dev, "ISRC2 overclocked\n");
176         if (val[1] & ARIZONA_ISRC1_OVERCLOCKED_STS)
177                 dev_err(arizona->dev, "ISRC1 overclocked\n");
178
179         return IRQ_HANDLED;
180 }
181
182 static int arizona_wait_for_boot(struct arizona *arizona)
183 {
184         unsigned int reg;
185         int ret, i;
186
187         /*
188          * We can't use an interrupt as we need to runtime resume to do so,
189          * we won't race with the interrupt handler as it'll be blocked on
190          * runtime resume.
191          */
192         for (i = 0; i < 5; i++) {
193                 msleep(1);
194
195                 ret = regmap_read(arizona->regmap,
196                                   ARIZONA_INTERRUPT_RAW_STATUS_5, &reg);
197                 if (ret != 0) {
198                         dev_err(arizona->dev, "Failed to read boot state: %d\n",
199                                 ret);
200                         continue;
201                 }
202
203                 if (reg & ARIZONA_BOOT_DONE_STS)
204                         break;
205         }
206
207         if (reg & ARIZONA_BOOT_DONE_STS) {
208                 regmap_write(arizona->regmap, ARIZONA_INTERRUPT_STATUS_5,
209                              ARIZONA_BOOT_DONE_STS);
210         } else {
211                 dev_err(arizona->dev, "Device boot timed out: %x\n", reg);
212                 return -ETIMEDOUT;
213         }
214
215         pm_runtime_mark_last_busy(arizona->dev);
216
217         return 0;
218 }
219
220 #ifdef CONFIG_PM_RUNTIME
221 static int arizona_runtime_resume(struct device *dev)
222 {
223         struct arizona *arizona = dev_get_drvdata(dev);
224         int ret;
225
226         dev_dbg(arizona->dev, "Leaving AoD mode\n");
227
228         ret = regulator_enable(arizona->dcvdd);
229         if (ret != 0) {
230                 dev_err(arizona->dev, "Failed to enable DCVDD: %d\n", ret);
231                 return ret;
232         }
233
234         regcache_cache_only(arizona->regmap, false);
235
236         ret = arizona_wait_for_boot(arizona);
237         if (ret != 0) {
238                 regulator_disable(arizona->dcvdd);
239                 return ret;
240         }
241
242         ret = regcache_sync(arizona->regmap);
243         if (ret != 0) {
244                 dev_err(arizona->dev, "Failed to restore register cache\n");
245                 regulator_disable(arizona->dcvdd);
246                 return ret;
247         }
248
249         return 0;
250 }
251
252 static int arizona_runtime_suspend(struct device *dev)
253 {
254         struct arizona *arizona = dev_get_drvdata(dev);
255
256         dev_dbg(arizona->dev, "Entering AoD mode\n");
257
258         regulator_disable(arizona->dcvdd);
259         regcache_cache_only(arizona->regmap, true);
260         regcache_mark_dirty(arizona->regmap);
261
262         return 0;
263 }
264 #endif
265
266 #ifdef CONFIG_PM_SLEEP
267 static int arizona_resume_noirq(struct device *dev)
268 {
269         struct arizona *arizona = dev_get_drvdata(dev);
270
271         dev_dbg(arizona->dev, "Early resume, disabling IRQ\n");
272         disable_irq(arizona->irq);
273
274         return 0;
275 }
276
277 static int arizona_resume(struct device *dev)
278 {
279         struct arizona *arizona = dev_get_drvdata(dev);
280
281         dev_dbg(arizona->dev, "Late resume, reenabling IRQ\n");
282         enable_irq(arizona->irq);
283
284         return 0;
285 }
286 #endif
287
288 const struct dev_pm_ops arizona_pm_ops = {
289         SET_RUNTIME_PM_OPS(arizona_runtime_suspend,
290                            arizona_runtime_resume,
291                            NULL)
292         SET_SYSTEM_SLEEP_PM_OPS(NULL, arizona_resume)
293 #ifdef CONFIG_PM_SLEEP
294         .resume_noirq = arizona_resume_noirq,
295 #endif
296 };
297 EXPORT_SYMBOL_GPL(arizona_pm_ops);
298
299 static struct mfd_cell early_devs[] = {
300         { .name = "arizona-ldo1" },
301 };
302
303 static struct mfd_cell wm5102_devs[] = {
304         { .name = "arizona-micsupp" },
305         { .name = "arizona-extcon" },
306         { .name = "arizona-gpio" },
307         { .name = "arizona-haptics" },
308         { .name = "arizona-pwm" },
309         { .name = "wm5102-codec" },
310 };
311
312 static struct mfd_cell wm5110_devs[] = {
313         { .name = "arizona-micsupp" },
314         { .name = "arizona-extcon" },
315         { .name = "arizona-gpio" },
316         { .name = "arizona-haptics" },
317         { .name = "arizona-pwm" },
318         { .name = "wm5110-codec" },
319 };
320
321 int arizona_dev_init(struct arizona *arizona)
322 {
323         struct device *dev = arizona->dev;
324         const char *type_name;
325         unsigned int reg, val;
326         int (*apply_patch)(struct arizona *) = NULL;
327         int ret, i;
328
329         dev_set_drvdata(arizona->dev, arizona);
330         mutex_init(&arizona->clk_lock);
331
332         if (dev_get_platdata(arizona->dev))
333                 memcpy(&arizona->pdata, dev_get_platdata(arizona->dev),
334                        sizeof(arizona->pdata));
335
336         regcache_cache_only(arizona->regmap, true);
337
338         switch (arizona->type) {
339         case WM5102:
340         case WM5110:
341                 for (i = 0; i < ARRAY_SIZE(wm5102_core_supplies); i++)
342                         arizona->core_supplies[i].supply
343                                 = wm5102_core_supplies[i];
344                 arizona->num_core_supplies = ARRAY_SIZE(wm5102_core_supplies);
345                 break;
346         default:
347                 dev_err(arizona->dev, "Unknown device type %d\n",
348                         arizona->type);
349                 return -EINVAL;
350         }
351
352         ret = mfd_add_devices(arizona->dev, -1, early_devs,
353                               ARRAY_SIZE(early_devs), NULL, 0, NULL);
354         if (ret != 0) {
355                 dev_err(dev, "Failed to add early children: %d\n", ret);
356                 return ret;
357         }
358
359         ret = devm_regulator_bulk_get(dev, arizona->num_core_supplies,
360                                       arizona->core_supplies);
361         if (ret != 0) {
362                 dev_err(dev, "Failed to request core supplies: %d\n",
363                         ret);
364                 goto err_early;
365         }
366
367         arizona->dcvdd = devm_regulator_get(arizona->dev, "DCVDD");
368         if (IS_ERR(arizona->dcvdd)) {
369                 ret = PTR_ERR(arizona->dcvdd);
370                 dev_err(dev, "Failed to request DCVDD: %d\n", ret);
371                 goto err_early;
372         }
373
374         ret = regulator_bulk_enable(arizona->num_core_supplies,
375                                     arizona->core_supplies);
376         if (ret != 0) {
377                 dev_err(dev, "Failed to enable core supplies: %d\n",
378                         ret);
379                 goto err_early;
380         }
381
382         ret = regulator_enable(arizona->dcvdd);
383         if (ret != 0) {
384                 dev_err(dev, "Failed to enable DCVDD: %d\n", ret);
385                 goto err_enable;
386         }
387
388         if (arizona->pdata.reset) {
389                 /* Start out with /RESET low to put the chip into reset */
390                 ret = gpio_request_one(arizona->pdata.reset,
391                                        GPIOF_DIR_OUT | GPIOF_INIT_LOW,
392                                        "arizona /RESET");
393                 if (ret != 0) {
394                         dev_err(dev, "Failed to request /RESET: %d\n", ret);
395                         goto err_dcvdd;
396                 }
397
398                 gpio_set_value_cansleep(arizona->pdata.reset, 1);
399         }
400
401         regcache_cache_only(arizona->regmap, false);
402
403         ret = regmap_read(arizona->regmap, ARIZONA_SOFTWARE_RESET, &reg);
404         if (ret != 0) {
405                 dev_err(dev, "Failed to read ID register: %d\n", ret);
406                 goto err_reset;
407         }
408
409         ret = regmap_read(arizona->regmap, ARIZONA_DEVICE_REVISION,
410                           &arizona->rev);
411         if (ret != 0) {
412                 dev_err(dev, "Failed to read revision register: %d\n", ret);
413                 goto err_reset;
414         }
415         arizona->rev &= ARIZONA_DEVICE_REVISION_MASK;
416
417         switch (reg) {
418 #ifdef CONFIG_MFD_WM5102
419         case 0x5102:
420                 type_name = "WM5102";
421                 if (arizona->type != WM5102) {
422                         dev_err(arizona->dev, "WM5102 registered as %d\n",
423                                 arizona->type);
424                         arizona->type = WM5102;
425                 }
426                 apply_patch = wm5102_patch;
427                 break;
428 #endif
429 #ifdef CONFIG_MFD_WM5110
430         case 0x5110:
431                 type_name = "WM5110";
432                 if (arizona->type != WM5110) {
433                         dev_err(arizona->dev, "WM5110 registered as %d\n",
434                                 arizona->type);
435                         arizona->type = WM5110;
436                 }
437                 apply_patch = wm5110_patch;
438                 break;
439 #endif
440         default:
441                 dev_err(arizona->dev, "Unknown device ID %x\n", reg);
442                 goto err_reset;
443         }
444
445         dev_info(dev, "%s revision %c\n", type_name, arizona->rev + 'A');
446
447         /* If we have a /RESET GPIO we'll already be reset */
448         if (!arizona->pdata.reset) {
449                 regcache_mark_dirty(arizona->regmap);
450
451                 ret = regmap_write(arizona->regmap, ARIZONA_SOFTWARE_RESET, 0);
452                 if (ret != 0) {
453                         dev_err(dev, "Failed to reset device: %d\n", ret);
454                         goto err_reset;
455                 }
456
457                 ret = regcache_sync(arizona->regmap);
458                 if (ret != 0) {
459                         dev_err(dev, "Failed to sync device: %d\n", ret);
460                         goto err_reset;
461                 }
462         }
463
464         ret = arizona_wait_for_boot(arizona);
465         if (ret != 0) {
466                 dev_err(arizona->dev, "Device failed initial boot: %d\n", ret);
467                 goto err_reset;
468         }
469
470         if (apply_patch) {
471                 ret = apply_patch(arizona);
472                 if (ret != 0) {
473                         dev_err(arizona->dev, "Failed to apply patch: %d\n",
474                                 ret);
475                         goto err_reset;
476                 }
477         }
478
479         for (i = 0; i < ARRAY_SIZE(arizona->pdata.gpio_defaults); i++) {
480                 if (!arizona->pdata.gpio_defaults[i])
481                         continue;
482
483                 regmap_write(arizona->regmap, ARIZONA_GPIO1_CTRL + i,
484                              arizona->pdata.gpio_defaults[i]);
485         }
486
487         pm_runtime_set_autosuspend_delay(arizona->dev, 100);
488         pm_runtime_use_autosuspend(arizona->dev);
489         pm_runtime_enable(arizona->dev);
490
491         /* Chip default */
492         if (!arizona->pdata.clk32k_src)
493                 arizona->pdata.clk32k_src = ARIZONA_32KZ_MCLK2;
494
495         switch (arizona->pdata.clk32k_src) {
496         case ARIZONA_32KZ_MCLK1:
497         case ARIZONA_32KZ_MCLK2:
498                 regmap_update_bits(arizona->regmap, ARIZONA_CLOCK_32K_1,
499                                    ARIZONA_CLK_32K_SRC_MASK,
500                                    arizona->pdata.clk32k_src - 1);
501                 break;
502         case ARIZONA_32KZ_NONE:
503                 regmap_update_bits(arizona->regmap, ARIZONA_CLOCK_32K_1,
504                                    ARIZONA_CLK_32K_SRC_MASK, 2);
505                 break;
506         default:
507                 dev_err(arizona->dev, "Invalid 32kHz clock source: %d\n",
508                         arizona->pdata.clk32k_src);
509                 ret = -EINVAL;
510                 goto err_reset;
511         }
512
513         for (i = 0; i < ARIZONA_MAX_MICBIAS; i++) {
514                 if (!arizona->pdata.micbias[i].mV)
515                         continue;
516
517                 val = (arizona->pdata.micbias[i].mV - 1500) / 100;
518                 val <<= ARIZONA_MICB1_LVL_SHIFT;
519
520                 if (arizona->pdata.micbias[i].ext_cap)
521                         val |= ARIZONA_MICB1_EXT_CAP;
522
523                 if (arizona->pdata.micbias[i].discharge)
524                         val |= ARIZONA_MICB1_DISCH;
525
526                 if (arizona->pdata.micbias[i].fast_start)
527                         val |= ARIZONA_MICB1_RATE;
528
529                 regmap_update_bits(arizona->regmap,
530                                    ARIZONA_MIC_BIAS_CTRL_1 + i,
531                                    ARIZONA_MICB1_LVL_MASK |
532                                    ARIZONA_MICB1_DISCH |
533                                    ARIZONA_MICB1_RATE, val);
534         }
535
536         for (i = 0; i < ARIZONA_MAX_INPUT; i++) {
537                 /* Default for both is 0 so noop with defaults */
538                 val = arizona->pdata.dmic_ref[i]
539                         << ARIZONA_IN1_DMIC_SUP_SHIFT;
540                 val |= arizona->pdata.inmode[i] << ARIZONA_IN1_MODE_SHIFT;
541
542                 regmap_update_bits(arizona->regmap,
543                                    ARIZONA_IN1L_CONTROL + (i * 8),
544                                    ARIZONA_IN1_DMIC_SUP_MASK |
545                                    ARIZONA_IN1_MODE_MASK, val);
546         }
547
548         for (i = 0; i < ARIZONA_MAX_OUTPUT; i++) {
549                 /* Default is 0 so noop with defaults */
550                 if (arizona->pdata.out_mono[i])
551                         val = ARIZONA_OUT1_MONO;
552                 else
553                         val = 0;
554
555                 regmap_update_bits(arizona->regmap,
556                                    ARIZONA_OUTPUT_PATH_CONFIG_1L + (i * 8),
557                                    ARIZONA_OUT1_MONO, val);
558         }
559
560         for (i = 0; i < ARIZONA_MAX_PDM_SPK; i++) {
561                 if (arizona->pdata.spk_mute[i])
562                         regmap_update_bits(arizona->regmap,
563                                            ARIZONA_PDM_SPK1_CTRL_1 + (i * 2),
564                                            ARIZONA_SPK1_MUTE_ENDIAN_MASK |
565                                            ARIZONA_SPK1_MUTE_SEQ1_MASK,
566                                            arizona->pdata.spk_mute[i]);
567
568                 if (arizona->pdata.spk_fmt[i])
569                         regmap_update_bits(arizona->regmap,
570                                            ARIZONA_PDM_SPK1_CTRL_2 + (i * 2),
571                                            ARIZONA_SPK1_FMT_MASK,
572                                            arizona->pdata.spk_fmt[i]);
573         }
574
575         /* Set up for interrupts */
576         ret = arizona_irq_init(arizona);
577         if (ret != 0)
578                 goto err_reset;
579
580         arizona_request_irq(arizona, ARIZONA_IRQ_CLKGEN_ERR, "CLKGEN error",
581                             arizona_clkgen_err, arizona);
582         arizona_request_irq(arizona, ARIZONA_IRQ_OVERCLOCKED, "Overclocked",
583                             arizona_overclocked, arizona);
584         arizona_request_irq(arizona, ARIZONA_IRQ_UNDERCLOCKED, "Underclocked",
585                             arizona_underclocked, arizona);
586
587         switch (arizona->type) {
588         case WM5102:
589                 ret = mfd_add_devices(arizona->dev, -1, wm5102_devs,
590                                       ARRAY_SIZE(wm5102_devs), NULL, 0, NULL);
591                 break;
592         case WM5110:
593                 ret = mfd_add_devices(arizona->dev, -1, wm5110_devs,
594                                       ARRAY_SIZE(wm5110_devs), NULL, 0, NULL);
595                 break;
596         }
597
598         if (ret != 0) {
599                 dev_err(arizona->dev, "Failed to add subdevices: %d\n", ret);
600                 goto err_irq;
601         }
602
603 #ifdef CONFIG_PM_RUNTIME
604         regulator_disable(arizona->dcvdd);
605 #endif
606
607         return 0;
608
609 err_irq:
610         arizona_irq_exit(arizona);
611 err_reset:
612         if (arizona->pdata.reset) {
613                 gpio_set_value_cansleep(arizona->pdata.reset, 1);
614                 gpio_free(arizona->pdata.reset);
615         }
616 err_dcvdd:
617         regulator_disable(arizona->dcvdd);
618 err_enable:
619         regulator_bulk_disable(arizona->num_core_supplies,
620                                arizona->core_supplies);
621 err_early:
622         mfd_remove_devices(dev);
623         return ret;
624 }
625 EXPORT_SYMBOL_GPL(arizona_dev_init);
626
627 int arizona_dev_exit(struct arizona *arizona)
628 {
629         mfd_remove_devices(arizona->dev);
630         arizona_free_irq(arizona, ARIZONA_IRQ_UNDERCLOCKED, arizona);
631         arizona_free_irq(arizona, ARIZONA_IRQ_OVERCLOCKED, arizona);
632         arizona_free_irq(arizona, ARIZONA_IRQ_CLKGEN_ERR, arizona);
633         pm_runtime_disable(arizona->dev);
634         arizona_irq_exit(arizona);
635         return 0;
636 }
637 EXPORT_SYMBOL_GPL(arizona_dev_exit);