blob: 99902ae1a2d95d9c6e295be964929a7b68c7acca [file] [log] [blame]
Mark Brown8a2cd612009-01-07 17:31:10 +00001/*
2 * soc-jack.c -- ALSA SoC jack handling
3 *
4 * Copyright 2008 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 it
9 * under the terms of the GNU General Public License as published by the
10 * Free Software Foundation; either version 2 of the License, or (at your
11 * option) any later version.
12 */
13
14#include <sound/jack.h>
15#include <sound/soc.h>
Lopez Cruz, Misaelec676242009-03-03 15:25:04 -060016#include <linux/gpio.h>
Jarkko Nikula50dfb692014-05-26 14:34:36 +030017#include <linux/gpio/consumer.h>
Lopez Cruz, Misaelec676242009-03-03 15:25:04 -060018#include <linux/interrupt.h>
19#include <linux/workqueue.h>
20#include <linux/delay.h>
Paul Gortmakerd81a6d72011-09-22 09:34:58 -040021#include <linux/export.h>
Dmitry Torokhov73548dd2017-03-21 16:50:43 -070022#include <linux/suspend.h>
Mark Brown3028eb82010-12-05 12:22:46 +000023#include <trace/events/asoc.h>
Mark Brown8a2cd612009-01-07 17:31:10 +000024
Takashi Iwaibd29ae92017-08-22 13:59:44 +020025struct jack_gpio_tbl {
26 int count;
27 struct snd_soc_jack *jack;
28 struct snd_soc_jack_gpio *gpios;
29};
30
Mark Brown8a2cd612009-01-07 17:31:10 +000031/**
Bard Liaod7344012017-04-07 11:26:41 +080032 * snd_soc_codec_set_jack - configure codec jack.
33 * @codec: CODEC
34 * @jack: structure to use for the jack
35 * @data: can be used if codec driver need extra data for configuring jack
36 *
37 * Configures and enables jack detection function.
38 */
39int snd_soc_codec_set_jack(struct snd_soc_codec *codec,
40 struct snd_soc_jack *jack, void *data)
41{
42 if (codec->driver->set_jack)
43 return codec->driver->set_jack(codec, jack, data);
44 else
Srinivas Kandagatla77a4525b2017-07-26 02:35:07 +020045 return -ENOTSUPP;
Bard Liaod7344012017-04-07 11:26:41 +080046}
47EXPORT_SYMBOL_GPL(snd_soc_codec_set_jack);
48
49/**
Kuninori Morimoto44c07362017-08-24 00:58:07 +000050 * snd_soc_component_set_jack - configure component jack.
51 * @component: COMPONENTs
52 * @jack: structure to use for the jack
53 * @data: can be used if codec driver need extra data for configuring jack
54 *
55 * Configures and enables jack detection function.
56 */
57int snd_soc_component_set_jack(struct snd_soc_component *component,
58 struct snd_soc_jack *jack, void *data)
59{
60 /* will be removed */
61 if (component->set_jack)
62 return component->set_jack(component, jack, data);
63
64 if (component->driver->set_jack)
65 return component->driver->set_jack(component, jack, data);
66
67 return -ENOTSUPP;
68}
69EXPORT_SYMBOL_GPL(snd_soc_component_set_jack);
70
71/**
Lars-Peter Clausen97093992015-03-04 10:33:17 +010072 * snd_soc_card_jack_new - Create a new jack
73 * @card: ASoC card
Mark Brown8a2cd612009-01-07 17:31:10 +000074 * @id: an identifying string for this jack
75 * @type: a bitmask of enum snd_jack_type values that can be detected by
76 * this jack
77 * @jack: structure to use for the jack
Lars-Peter Clausen97093992015-03-04 10:33:17 +010078 * @pins: Array of jack pins to be added to the jack or NULL
79 * @num_pins: Number of elements in the @pins array
Mark Brown8a2cd612009-01-07 17:31:10 +000080 *
81 * Creates a new jack object.
82 *
83 * Returns zero if successful, or a negative error code on failure.
84 * On success jack will be initialised.
85 */
Lars-Peter Clausen97093992015-03-04 10:33:17 +010086int snd_soc_card_jack_new(struct snd_soc_card *card, const char *id, int type,
87 struct snd_soc_jack *jack, struct snd_soc_jack_pin *pins,
88 unsigned int num_pins)
Mark Brown8a2cd612009-01-07 17:31:10 +000089{
Lars-Peter Clausen97093992015-03-04 10:33:17 +010090 int ret;
91
Mark Brown2667b4b2012-03-12 14:07:49 +000092 mutex_init(&jack->mutex);
Lars-Peter Clausen97093992015-03-04 10:33:17 +010093 jack->card = card;
Mark Brown8a2cd612009-01-07 17:31:10 +000094 INIT_LIST_HEAD(&jack->pins);
Vinod Koulfa9879e2011-02-09 14:44:17 +053095 INIT_LIST_HEAD(&jack->jack_zones);
Mark Brownd5021ec2010-03-22 12:06:30 +000096 BLOCKING_INIT_NOTIFIER_HEAD(&jack->notifier);
Mark Brown8a2cd612009-01-07 17:31:10 +000097
Jie Yang4e3f0dc2015-04-27 21:20:58 +080098 ret = snd_jack_new(card->snd_card, id, type, &jack->jack, false, false);
Lars-Peter Clausen97093992015-03-04 10:33:17 +010099 if (ret)
100 return ret;
101
102 if (num_pins)
103 return snd_soc_jack_add_pins(jack, num_pins, pins);
104
105 return 0;
Mark Brown8a2cd612009-01-07 17:31:10 +0000106}
Lars-Peter Clausen97093992015-03-04 10:33:17 +0100107EXPORT_SYMBOL_GPL(snd_soc_card_jack_new);
Mark Brown8a2cd612009-01-07 17:31:10 +0000108
109/**
110 * snd_soc_jack_report - Report the current status for a jack
111 *
112 * @jack: the jack
113 * @status: a bitmask of enum snd_jack_type values that are currently detected.
114 * @mask: a bitmask of enum snd_jack_type values that being reported.
115 *
116 * If configured using snd_soc_jack_add_pins() then the associated
117 * DAPM pins will be enabled or disabled as appropriate and DAPM
118 * synchronised.
119 *
120 * Note: This function uses mutexes and should be called from a
121 * context which can sleep (such as a workqueue).
122 */
123void snd_soc_jack_report(struct snd_soc_jack *jack, int status, int mask)
124{
Liam Girdwoodce6120c2010-11-05 15:53:46 +0200125 struct snd_soc_dapm_context *dapm;
Mark Brown8a2cd612009-01-07 17:31:10 +0000126 struct snd_soc_jack_pin *pin;
Vinod Koul30a765d2013-10-21 19:07:34 +0530127 unsigned int sync = 0;
Mark Brown8a2cd612009-01-07 17:31:10 +0000128 int enable;
Mark Brown8a2cd612009-01-07 17:31:10 +0000129
Mark Brown3028eb82010-12-05 12:22:46 +0000130 trace_snd_soc_jack_report(jack, mask, status);
131
Mark Brown3a278a02010-03-29 20:31:14 +0100132 if (!jack)
Mark Brown8a2cd612009-01-07 17:31:10 +0000133 return;
Mark Brown3a278a02010-03-29 20:31:14 +0100134
Lars-Peter Clausen97093992015-03-04 10:33:17 +0100135 dapm = &jack->card->dapm;
Mark Brown8a2cd612009-01-07 17:31:10 +0000136
Mark Brown2667b4b2012-03-12 14:07:49 +0000137 mutex_lock(&jack->mutex);
Mark Brown8a2cd612009-01-07 17:31:10 +0000138
Mark Brown8a2cd612009-01-07 17:31:10 +0000139 jack->status &= ~mask;
Janusz Krzysztofik178b6992009-07-24 02:48:57 +0200140 jack->status |= status & mask;
Mark Brown8a2cd612009-01-07 17:31:10 +0000141
Mark Brown3028eb82010-12-05 12:22:46 +0000142 trace_snd_soc_jack_notify(jack, status);
143
Mark Brown8a2cd612009-01-07 17:31:10 +0000144 list_for_each_entry(pin, &jack->pins, list) {
Janusz Krzysztofik178b6992009-07-24 02:48:57 +0200145 enable = pin->mask & jack->status;
Mark Brown8a2cd612009-01-07 17:31:10 +0000146
147 if (pin->invert)
148 enable = !enable;
149
150 if (enable)
Liam Girdwoodce6120c2010-11-05 15:53:46 +0200151 snd_soc_dapm_enable_pin(dapm, pin->pin);
Mark Brown8a2cd612009-01-07 17:31:10 +0000152 else
Liam Girdwoodce6120c2010-11-05 15:53:46 +0200153 snd_soc_dapm_disable_pin(dapm, pin->pin);
Vinod Koul30a765d2013-10-21 19:07:34 +0530154
155 /* we need to sync for this case only */
156 sync = 1;
Mark Brown8a2cd612009-01-07 17:31:10 +0000157 }
158
Mark Brownd5021ec2010-03-22 12:06:30 +0000159 /* Report before the DAPM sync to help users updating micbias status */
Mark Brown12022a72012-08-13 16:28:36 +0100160 blocking_notifier_call_chain(&jack->notifier, jack->status, jack);
Mark Brownd5021ec2010-03-22 12:06:30 +0000161
Vinod Koul30a765d2013-10-21 19:07:34 +0530162 if (sync)
163 snd_soc_dapm_sync(dapm);
Mark Brown8a2cd612009-01-07 17:31:10 +0000164
Mark Brown747da0f2011-09-04 08:18:18 -0700165 snd_jack_report(jack->jack, jack->status);
Mark Brown8a2cd612009-01-07 17:31:10 +0000166
Mark Brown2667b4b2012-03-12 14:07:49 +0000167 mutex_unlock(&jack->mutex);
Mark Brown8a2cd612009-01-07 17:31:10 +0000168}
169EXPORT_SYMBOL_GPL(snd_soc_jack_report);
170
171/**
Vinod Koulfa9879e2011-02-09 14:44:17 +0530172 * snd_soc_jack_add_zones - Associate voltage zones with jack
173 *
174 * @jack: ASoC jack
175 * @count: Number of zones
Masanari Iidabb29a932014-11-12 00:52:23 +0900176 * @zones: Array of zones
Vinod Koulfa9879e2011-02-09 14:44:17 +0530177 *
178 * After this function has been called the zones specified in the
179 * array will be associated with the jack.
180 */
181int snd_soc_jack_add_zones(struct snd_soc_jack *jack, int count,
182 struct snd_soc_jack_zone *zones)
183{
184 int i;
185
186 for (i = 0; i < count; i++) {
187 INIT_LIST_HEAD(&zones[i].list);
188 list_add(&(zones[i].list), &jack->jack_zones);
189 }
190 return 0;
191}
192EXPORT_SYMBOL_GPL(snd_soc_jack_add_zones);
193
194/**
195 * snd_soc_jack_get_type - Based on the mic bias value, this function returns
Peter Meerwalda92b0782012-10-02 14:08:19 +0200196 * the type of jack from the zones declared in the jack type
Vinod Koulfa9879e2011-02-09 14:44:17 +0530197 *
Peter Meerwalda92b0782012-10-02 14:08:19 +0200198 * @jack: ASoC jack
Vinod Koulfa9879e2011-02-09 14:44:17 +0530199 * @micbias_voltage: mic bias voltage at adc channel when jack is plugged in
200 *
201 * Based on the mic bias value passed, this function helps identify
Peter Meerwalda92b0782012-10-02 14:08:19 +0200202 * the type of jack from the already declared jack zones
Vinod Koulfa9879e2011-02-09 14:44:17 +0530203 */
204int snd_soc_jack_get_type(struct snd_soc_jack *jack, int micbias_voltage)
205{
206 struct snd_soc_jack_zone *zone;
207
208 list_for_each_entry(zone, &jack->jack_zones, list) {
209 if (micbias_voltage >= zone->min_mv &&
210 micbias_voltage < zone->max_mv)
211 return zone->jack_type;
212 }
213 return 0;
214}
215EXPORT_SYMBOL_GPL(snd_soc_jack_get_type);
216
217/**
Mark Brown8a2cd612009-01-07 17:31:10 +0000218 * snd_soc_jack_add_pins - Associate DAPM pins with an ASoC jack
219 *
220 * @jack: ASoC jack
221 * @count: Number of pins
222 * @pins: Array of pins
223 *
224 * After this function has been called the DAPM pins specified in the
225 * pins array will have their status updated to reflect the current
226 * state of the jack whenever the jack status is updated.
227 */
228int snd_soc_jack_add_pins(struct snd_soc_jack *jack, int count,
229 struct snd_soc_jack_pin *pins)
230{
231 int i;
232
233 for (i = 0; i < count; i++) {
234 if (!pins[i].pin) {
Lars-Peter Clausen97093992015-03-04 10:33:17 +0100235 dev_err(jack->card->dev, "ASoC: No name for pin %d\n",
Liam Girdwood008d55e2012-11-19 14:39:14 +0000236 i);
Mark Brown8a2cd612009-01-07 17:31:10 +0000237 return -EINVAL;
238 }
239 if (!pins[i].mask) {
Lars-Peter Clausen97093992015-03-04 10:33:17 +0100240 dev_err(jack->card->dev, "ASoC: No mask for pin %d"
Liam Girdwood008d55e2012-11-19 14:39:14 +0000241 " (%s)\n", i, pins[i].pin);
Mark Brown8a2cd612009-01-07 17:31:10 +0000242 return -EINVAL;
243 }
244
245 INIT_LIST_HEAD(&pins[i].list);
246 list_add(&(pins[i].list), &jack->pins);
Jie Yangf63e8582015-04-27 21:21:00 +0800247 snd_jack_add_new_kctl(jack->jack, pins[i].pin, pins[i].mask);
Mark Brown8a2cd612009-01-07 17:31:10 +0000248 }
249
250 /* Update to reflect the last reported status; canned jack
251 * implementations are likely to set their state before the
252 * card has an opportunity to associate pins.
253 */
254 snd_soc_jack_report(jack, 0, 0);
255
256 return 0;
257}
258EXPORT_SYMBOL_GPL(snd_soc_jack_add_pins);
Lopez Cruz, Misaelec676242009-03-03 15:25:04 -0600259
Mark Brownd5021ec2010-03-22 12:06:30 +0000260/**
261 * snd_soc_jack_notifier_register - Register a notifier for jack status
262 *
263 * @jack: ASoC jack
264 * @nb: Notifier block to register
265 *
266 * Register for notification of the current status of the jack. Note
267 * that it is not possible to report additional jack events in the
268 * callback from the notifier, this is intended to support
269 * applications such as enabling electrical detection only when a
270 * mechanical detection event has occurred.
271 */
272void snd_soc_jack_notifier_register(struct snd_soc_jack *jack,
273 struct notifier_block *nb)
274{
275 blocking_notifier_chain_register(&jack->notifier, nb);
276}
277EXPORT_SYMBOL_GPL(snd_soc_jack_notifier_register);
278
279/**
280 * snd_soc_jack_notifier_unregister - Unregister a notifier for jack status
281 *
282 * @jack: ASoC jack
283 * @nb: Notifier block to unregister
284 *
285 * Stop notifying for status changes.
286 */
287void snd_soc_jack_notifier_unregister(struct snd_soc_jack *jack,
288 struct notifier_block *nb)
289{
290 blocking_notifier_chain_unregister(&jack->notifier, nb);
291}
292EXPORT_SYMBOL_GPL(snd_soc_jack_notifier_unregister);
293
Lopez Cruz, Misaelec676242009-03-03 15:25:04 -0600294#ifdef CONFIG_GPIOLIB
295/* gpio detect */
Mark Brown26bd7b42009-03-06 11:32:17 +0000296static void snd_soc_jack_gpio_detect(struct snd_soc_jack_gpio *gpio)
Lopez Cruz, Misaelec676242009-03-03 15:25:04 -0600297{
298 struct snd_soc_jack *jack = gpio->jack;
299 int enable;
300 int report;
301
Jarkko Nikula50dfb692014-05-26 14:34:36 +0300302 enable = gpiod_get_value_cansleep(gpio->desc);
Lopez Cruz, Misaelec676242009-03-03 15:25:04 -0600303 if (gpio->invert)
304 enable = !enable;
305
306 if (enable)
307 report = gpio->report;
308 else
309 report = 0;
310
Joonyoung Shimc871a052009-11-12 17:14:04 +0900311 if (gpio->jack_status_check)
xiangxiaocb29d7b2014-02-23 14:40:44 +0800312 report = gpio->jack_status_check(gpio->data);
Joonyoung Shimc871a052009-11-12 17:14:04 +0900313
Lopez Cruz, Misaelec676242009-03-03 15:25:04 -0600314 snd_soc_jack_report(jack, report, gpio->report);
315}
316
317/* irq handler for gpio pin */
318static irqreturn_t gpio_handler(int irq, void *data)
319{
320 struct snd_soc_jack_gpio *gpio = data;
Lars-Peter Clausen97093992015-03-04 10:33:17 +0100321 struct device *dev = gpio->jack->card->dev;
Mark Brownf9a67052010-11-14 19:25:09 +0000322
Mark Brown3028eb82010-12-05 12:22:46 +0000323 trace_snd_soc_jack_irq(gpio->name);
324
Mark Brownf9a67052010-11-14 19:25:09 +0000325 if (device_may_wakeup(dev))
326 pm_wakeup_event(dev, gpio->debounce_time + 50);
Lopez Cruz, Misaelec676242009-03-03 15:25:04 -0600327
Mark Browne6058aa2013-07-18 22:47:10 +0100328 queue_delayed_work(system_power_efficient_wq, &gpio->work,
Mark Brown4c14d782010-10-06 15:54:28 -0700329 msecs_to_jiffies(gpio->debounce_time));
Lopez Cruz, Misaelec676242009-03-03 15:25:04 -0600330
331 return IRQ_HANDLED;
332}
333
334/* gpio work */
335static void gpio_work(struct work_struct *work)
336{
337 struct snd_soc_jack_gpio *gpio;
338
Mark Brown4c14d782010-10-06 15:54:28 -0700339 gpio = container_of(work, struct snd_soc_jack_gpio, work.work);
Lopez Cruz, Misaelec676242009-03-03 15:25:04 -0600340 snd_soc_jack_gpio_detect(gpio);
341}
342
Dmitry Torokhov73548dd2017-03-21 16:50:43 -0700343static int snd_soc_jack_pm_notifier(struct notifier_block *nb,
344 unsigned long action, void *data)
345{
346 struct snd_soc_jack_gpio *gpio =
347 container_of(nb, struct snd_soc_jack_gpio, pm_notifier);
348
349 switch (action) {
350 case PM_POST_SUSPEND:
351 case PM_POST_HIBERNATION:
352 case PM_POST_RESTORE:
353 /*
354 * Use workqueue so we do not have to care about running
355 * concurrently with work triggered by the interrupt handler.
356 */
357 queue_delayed_work(system_power_efficient_wq, &gpio->work, 0);
358 break;
359 }
360
361 return NOTIFY_DONE;
362}
363
Takashi Iwaibd29ae92017-08-22 13:59:44 +0200364static void jack_free_gpios(struct snd_soc_jack *jack, int count,
365 struct snd_soc_jack_gpio *gpios)
366{
367 int i;
368
369 for (i = 0; i < count; i++) {
370 gpiod_unexport(gpios[i].desc);
371 unregister_pm_notifier(&gpios[i].pm_notifier);
372 free_irq(gpiod_to_irq(gpios[i].desc), &gpios[i]);
373 cancel_delayed_work_sync(&gpios[i].work);
374 gpiod_put(gpios[i].desc);
375 gpios[i].jack = NULL;
376 }
377}
378
379static void jack_devres_free_gpios(struct device *dev, void *res)
380{
381 struct jack_gpio_tbl *tbl = res;
382
383 jack_free_gpios(tbl->jack, tbl->count, tbl->gpios);
384}
385
Lopez Cruz, Misaelec676242009-03-03 15:25:04 -0600386/**
387 * snd_soc_jack_add_gpios - Associate GPIO pins with an ASoC jack
388 *
389 * @jack: ASoC jack
390 * @count: number of pins
391 * @gpios: array of gpio pins
392 *
393 * This function will request gpio, set data direction and request irq
394 * for each gpio in the array.
395 */
396int snd_soc_jack_add_gpios(struct snd_soc_jack *jack, int count,
397 struct snd_soc_jack_gpio *gpios)
398{
399 int i, ret;
Takashi Iwaibd29ae92017-08-22 13:59:44 +0200400 struct jack_gpio_tbl *tbl;
401
402 tbl = devres_alloc(jack_devres_free_gpios, sizeof(*tbl), GFP_KERNEL);
403 if (!tbl)
404 return -ENOMEM;
405 tbl->jack = jack;
406 tbl->count = count;
407 tbl->gpios = gpios;
Lopez Cruz, Misaelec676242009-03-03 15:25:04 -0600408
409 for (i = 0; i < count; i++) {
Lopez Cruz, Misaelec676242009-03-03 15:25:04 -0600410 if (!gpios[i].name) {
Lars-Peter Clausen97093992015-03-04 10:33:17 +0100411 dev_err(jack->card->dev,
Jarkko Nikulaf025d3b2014-05-26 14:34:37 +0300412 "ASoC: No name for gpio at index %d\n", i);
Lopez Cruz, Misaelec676242009-03-03 15:25:04 -0600413 ret = -EINVAL;
414 goto undo;
415 }
416
Dylan Reide616d2e2015-05-22 15:09:20 -0700417 if (gpios[i].desc) {
418 /* Already have a GPIO descriptor. */
419 goto got_gpio;
420 } else if (gpios[i].gpiod_dev) {
421 /* Get a GPIO descriptor */
Jarkko Nikulaf025d3b2014-05-26 14:34:37 +0300422 gpios[i].desc = gpiod_get_index(gpios[i].gpiod_dev,
423 gpios[i].name,
Alexandre Courbot00d647b2014-10-23 17:15:18 +0900424 gpios[i].idx, GPIOD_IN);
Jarkko Nikulaf025d3b2014-05-26 14:34:37 +0300425 if (IS_ERR(gpios[i].desc)) {
426 ret = PTR_ERR(gpios[i].desc);
427 dev_err(gpios[i].gpiod_dev,
428 "ASoC: Cannot get gpio at index %d: %d",
429 i, ret);
430 goto undo;
431 }
432 } else {
433 /* legacy GPIO number */
434 if (!gpio_is_valid(gpios[i].gpio)) {
Lars-Peter Clausen97093992015-03-04 10:33:17 +0100435 dev_err(jack->card->dev,
Jarkko Nikulaf025d3b2014-05-26 14:34:37 +0300436 "ASoC: Invalid gpio %d\n",
437 gpios[i].gpio);
438 ret = -EINVAL;
439 goto undo;
440 }
Lopez Cruz, Misaelec676242009-03-03 15:25:04 -0600441
Alexandre Courbot00d647b2014-10-23 17:15:18 +0900442 ret = gpio_request_one(gpios[i].gpio, GPIOF_IN,
443 gpios[i].name);
Jarkko Nikulaf025d3b2014-05-26 14:34:37 +0300444 if (ret)
445 goto undo;
446
447 gpios[i].desc = gpio_to_desc(gpios[i].gpio);
448 }
Dylan Reide616d2e2015-05-22 15:09:20 -0700449got_gpio:
Mark Brown4c14d782010-10-06 15:54:28 -0700450 INIT_DELAYED_WORK(&gpios[i].work, gpio_work);
Lars-Peter Clausenb8e22c12009-07-31 21:15:25 +0200451 gpios[i].jack = jack;
452
Jarkko Nikula50dfb692014-05-26 14:34:36 +0300453 ret = request_any_context_irq(gpiod_to_irq(gpios[i].desc),
Mark Brown3f58fd82010-11-03 09:35:31 -0400454 gpio_handler,
455 IRQF_TRIGGER_RISING |
456 IRQF_TRIGGER_FALLING,
Stephen Warren363618f2011-04-01 14:50:43 -0600457 gpios[i].name,
Mark Brown3f58fd82010-11-03 09:35:31 -0400458 &gpios[i]);
Axel Lind2b4c7b2011-08-13 19:15:01 +0800459 if (ret < 0)
Lopez Cruz, Misaelec676242009-03-03 15:25:04 -0600460 goto err;
461
Mark Brown7887ab32011-02-17 16:35:55 -0800462 if (gpios[i].wake) {
Jarkko Nikula50dfb692014-05-26 14:34:36 +0300463 ret = irq_set_irq_wake(gpiod_to_irq(gpios[i].desc), 1);
Mark Brown7887ab32011-02-17 16:35:55 -0800464 if (ret != 0)
Lars-Peter Clausen97093992015-03-04 10:33:17 +0100465 dev_err(jack->card->dev,
Jarkko Nikulaf025d3b2014-05-26 14:34:37 +0300466 "ASoC: Failed to mark GPIO at index %d as wake source: %d\n",
467 i, ret);
Mark Brown7887ab32011-02-17 16:35:55 -0800468 }
469
Dmitry Torokhov73548dd2017-03-21 16:50:43 -0700470 /*
471 * Register PM notifier so we do not miss state transitions
472 * happening while system is asleep.
473 */
474 gpios[i].pm_notifier.notifier_call = snd_soc_jack_pm_notifier;
475 register_pm_notifier(&gpios[i].pm_notifier);
476
Janusz Krzysztofik178b6992009-07-24 02:48:57 +0200477 /* Expose GPIO value over sysfs for diagnostic purposes */
Jarkko Nikula50dfb692014-05-26 14:34:36 +0300478 gpiod_export(gpios[i].desc, false);
Janusz Krzysztofik178b6992009-07-24 02:48:57 +0200479
Janusz Krzysztofik178b6992009-07-24 02:48:57 +0200480 /* Update initial jack status */
xiangxiaof1adf5b2014-02-23 14:44:52 +0800481 schedule_delayed_work(&gpios[i].work,
482 msecs_to_jiffies(gpios[i].debounce_time));
Lopez Cruz, Misaelec676242009-03-03 15:25:04 -0600483 }
484
Takashi Iwaibd29ae92017-08-22 13:59:44 +0200485 devres_add(jack->card->dev, tbl);
Lopez Cruz, Misaelec676242009-03-03 15:25:04 -0600486 return 0;
487
488err:
489 gpio_free(gpios[i].gpio);
490undo:
Takashi Iwaibd29ae92017-08-22 13:59:44 +0200491 jack_free_gpios(jack, i, gpios);
492 devres_free(tbl);
Lopez Cruz, Misaelec676242009-03-03 15:25:04 -0600493
494 return ret;
495}
496EXPORT_SYMBOL_GPL(snd_soc_jack_add_gpios);
497
498/**
Jarkko Nikulaf025d3b2014-05-26 14:34:37 +0300499 * snd_soc_jack_add_gpiods - Associate GPIO descriptor pins with an ASoC jack
500 *
501 * @gpiod_dev: GPIO consumer device
502 * @jack: ASoC jack
503 * @count: number of pins
504 * @gpios: array of gpio pins
505 *
506 * This function will request gpio, set data direction and request irq
507 * for each gpio in the array.
508 */
509int snd_soc_jack_add_gpiods(struct device *gpiod_dev,
510 struct snd_soc_jack *jack,
511 int count, struct snd_soc_jack_gpio *gpios)
512{
513 int i;
514
515 for (i = 0; i < count; i++)
516 gpios[i].gpiod_dev = gpiod_dev;
517
518 return snd_soc_jack_add_gpios(jack, count, gpios);
519}
520EXPORT_SYMBOL_GPL(snd_soc_jack_add_gpiods);
521
522/**
Lopez Cruz, Misaelec676242009-03-03 15:25:04 -0600523 * snd_soc_jack_free_gpios - Release GPIO pins' resources of an ASoC jack
524 *
525 * @jack: ASoC jack
526 * @count: number of pins
527 * @gpios: array of gpio pins
528 *
529 * Release gpio and irq resources for gpio pins associated with an ASoC jack.
530 */
531void snd_soc_jack_free_gpios(struct snd_soc_jack *jack, int count,
532 struct snd_soc_jack_gpio *gpios)
533{
Takashi Iwaibd29ae92017-08-22 13:59:44 +0200534 jack_free_gpios(jack, count, gpios);
535 devres_destroy(jack->card->dev, jack_devres_free_gpios, NULL, NULL);
Lopez Cruz, Misaelec676242009-03-03 15:25:04 -0600536}
537EXPORT_SYMBOL_GPL(snd_soc_jack_free_gpios);
538#endif /* CONFIG_GPIOLIB */