[linux-2.6-block.git] / drivers / mfd / arizona-irq.c

/*
 * Arizona interrupt support
 *
 * Copyright 2012 Wolfson Microelectronics plc
 *
 * Author: Mark Brown <broonie@opensource.wolfsonmicro.com>
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License version 2 as
 * published by the Free Software Foundation.
 */

#include <linux/delay.h>
#include <linux/gpio.h>
#include <linux/interrupt.h>
#include <linux/irq.h>
#include <linux/irqdomain.h>
#include <linux/module.h>
#include <linux/pm_runtime.h>
#include <linux/regmap.h>
#include <linux/regulator/consumer.h>
#include <linux/slab.h>

#include <linux/mfd/arizona/core.h>
#include <linux/mfd/arizona/registers.h>

#include "arizona.h"

static int arizona_map_irq(struct arizona *arizona, int irq)
{
	int ret;

	if (arizona->aod_irq_chip) {
		ret = regmap_irq_get_virq(arizona->aod_irq_chip, irq);
		if (ret >= 0)
			return ret;
	}

	return regmap_irq_get_virq(arizona->irq_chip, irq);
}

int arizona_request_irq(struct arizona *arizona, int irq, char *name,
			   irq_handler_t handler, void *data)
{
	irq = arizona_map_irq(arizona, irq);
	if (irq < 0)
		return irq;

	return request_threaded_irq(irq, NULL, handler, IRQF_ONESHOT,
				    name, data);
}
EXPORT_SYMBOL_GPL(arizona_request_irq);

void arizona_free_irq(struct arizona *arizona, int irq, void *data)
{
	irq = arizona_map_irq(arizona, irq);
	if (irq < 0)
		return;

	free_irq(irq, data);
}
EXPORT_SYMBOL_GPL(arizona_free_irq);

int arizona_set_irq_wake(struct arizona *arizona, int irq, int on)
{
	irq = arizona_map_irq(arizona, irq);
	if (irq < 0)
		return irq;

	return irq_set_irq_wake(irq, on);
}
EXPORT_SYMBOL_GPL(arizona_set_irq_wake);

static irqreturn_t arizona_boot_done(int irq, void *data)
{
	struct arizona *arizona = data;

	dev_dbg(arizona->dev, "Boot done\n");

	return IRQ_HANDLED;
}

static irqreturn_t arizona_ctrlif_err(int irq, void *data)
{
	struct arizona *arizona = data;

	/*
	 * For pretty much all potential sources a register cache sync
	 * won't help, we've just got a software bug somewhere.
	 */
	dev_err(arizona->dev, "Control interface error\n");

	return IRQ_HANDLED;
}

static irqreturn_t arizona_irq_thread(int irq, void *data)
{
	struct arizona *arizona = data;
	bool poll;
	unsigned int val;
	int ret;

	ret = pm_runtime_get_sync(arizona->dev);
	if (ret < 0) {
		dev_err(arizona->dev, "Failed to resume device: %d\n", ret);
		return IRQ_NONE;
	}

	do {
		poll = false;

		if (arizona->aod_irq_chip)
			handle_nested_irq(irq_find_mapping(arizona->virq, 0));

		/*
		 * Check if one of the main interrupts is asserted and only
		 * check that domain if it is.
		 */
		ret = regmap_read(arizona->regmap, ARIZONA_IRQ_PIN_STATUS,
				  &val);
		if (ret == 0 && val & ARIZONA_IRQ1_STS) {
			handle_nested_irq(irq_find_mapping(arizona->virq, 1));
		} else if (ret != 0) {
			dev_err(arizona->dev,
				"Failed to read main IRQ status: %d\n", ret);
		}

		/*
		 * Poll the IRQ pin status to see if we're really done
		 * if the interrupt controller can't do it for us.
		 */
		if (!arizona->pdata.irq_gpio) {
			break;
		} else if (arizona->pdata.irq_flags & IRQF_TRIGGER_RISING &&
			   gpio_get_value_cansleep(arizona->pdata.irq_gpio)) {
			poll = true;
		} else if (arizona->pdata.irq_flags & IRQF_TRIGGER_FALLING &&
			   !gpio_get_value_cansleep(arizona->pdata.irq_gpio)) {
			poll = true;
		}
	} while (poll);

	pm_runtime_mark_last_busy(arizona->dev);
	pm_runtime_put_autosuspend(arizona->dev);

	return IRQ_HANDLED;
}

static void arizona_irq_enable(struct irq_data *data)
{
}

static void arizona_irq_disable(struct irq_data *data)
{
}

static int arizona_irq_set_wake(struct irq_data *data, unsigned int on)
{
	struct arizona *arizona = irq_data_get_irq_chip_data(data);

	return irq_set_irq_wake(arizona->irq, on);
}

static struct irq_chip arizona_irq_chip = {
	.name			= "arizona",
	.irq_disable		= arizona_irq_disable,
	.irq_enable		= arizona_irq_enable,
	.irq_set_wake		= arizona_irq_set_wake,
};

static struct lock_class_key arizona_irq_lock_class;

static int arizona_irq_map(struct irq_domain *h, unsigned int virq,
			      irq_hw_number_t hw)
{
	struct arizona *data = h->host_data;

	irq_set_chip_data(virq, data);
	irq_set_lockdep_class(virq, &arizona_irq_lock_class);
	irq_set_chip_and_handler(virq, &arizona_irq_chip, handle_simple_irq);
	irq_set_nested_thread(virq, 1);
	irq_set_noprobe(virq);

	return 0;
}

static const struct irq_domain_ops arizona_domain_ops = {
	.map	= arizona_irq_map,
	.xlate	= irq_domain_xlate_twocell,
};

int arizona_irq_init(struct arizona *arizona)
{
	int flags = IRQF_ONESHOT;
	int ret, i;
	const struct regmap_irq_chip *aod, *irq;
	struct irq_data *irq_data;

	arizona->ctrlif_error = true;

	switch (arizona->type) {
#ifdef CONFIG_MFD_WM5102
	case WM5102:
		aod = &wm5102_aod;
		irq = &wm5102_irq;

		arizona->ctrlif_error = false;
		break;
#endif
#ifdef CONFIG_MFD_WM5110
	case WM5110:
	case WM8280:
		aod = &wm5110_aod;

		switch (arizona->rev) {
		case 0 ... 2:
			irq = &wm5110_irq;
			break;
		default:
			irq = &wm5110_revd_irq;
			break;
		}

		arizona->ctrlif_error = false;
		break;
#endif
#ifdef CONFIG_MFD_CS47L24
	case WM1831:
	case CS47L24:
		aod = NULL;
		irq = &cs47l24_irq;

		arizona->ctrlif_error = false;
		break;
#endif
#ifdef CONFIG_MFD_WM8997
	case WM8997:
		aod = &wm8997_aod;
		irq = &wm8997_irq;

		arizona->ctrlif_error = false;
		break;
#endif
#ifdef CONFIG_MFD_WM8998
	case WM8998:
	case WM1814:
		aod = &wm8998_aod;
		irq = &wm8998_irq;

		arizona->ctrlif_error = false;
		break;
#endif
	default:
		BUG_ON("Unknown Arizona class device" == NULL);
		return -EINVAL;
	}

	/* Disable all wake sources by default */
	regmap_write(arizona->regmap, ARIZONA_WAKE_CONTROL, 0);

	/* Read the flags from the interrupt controller if not specified */
	if (!arizona->pdata.irq_flags) {
		irq_data = irq_get_irq_data(arizona->irq);
		if (!irq_data) {
			dev_err(arizona->dev, "Invalid IRQ: %d\n",
				arizona->irq);
			return -EINVAL;
		}

		arizona->pdata.irq_flags = irqd_get_trigger_type(irq_data);
		switch (arizona->pdata.irq_flags) {
		case IRQF_TRIGGER_LOW:
		case IRQF_TRIGGER_HIGH:
		case IRQF_TRIGGER_RISING:
		case IRQF_TRIGGER_FALLING:
			break;

		case IRQ_TYPE_NONE:
		default:
			/* Device default */
			arizona->pdata.irq_flags = IRQF_TRIGGER_LOW;
			break;
		}
	}

	if (arizona->pdata.irq_flags & (IRQF_TRIGGER_HIGH |
					IRQF_TRIGGER_RISING)) {
		ret = regmap_update_bits(arizona->regmap, ARIZONA_IRQ_CTRL_1,
					 ARIZONA_IRQ_POL, 0);
		if (ret != 0) {
			dev_err(arizona->dev, "Couldn't set IRQ polarity: %d\n",
				ret);
			goto err;
		}
	}

	flags |= arizona->pdata.irq_flags;

	/* Allocate a virtual IRQ domain to distribute to the regmap domains */
	arizona->virq = irq_domain_add_linear(NULL, 2, &arizona_domain_ops,
					      arizona);
	if (!arizona->virq) {
		dev_err(arizona->dev, "Failed to add core IRQ domain\n");
		ret = -EINVAL;
		goto err;
	}

	if (aod) {
		ret = regmap_add_irq_chip(arizona->regmap,
					  irq_create_mapping(arizona->virq, 0),
					  IRQF_ONESHOT, 0, aod,
					  &arizona->aod_irq_chip);
		if (ret != 0) {
			dev_err(arizona->dev,
				"Failed to add AOD IRQs: %d\n", ret);
			goto err;
		}
	}

	ret = regmap_add_irq_chip(arizona->regmap,
				  irq_create_mapping(arizona->virq, 1),
				  IRQF_ONESHOT, 0, irq,
				  &arizona->irq_chip);
	if (ret != 0) {
		dev_err(arizona->dev, "Failed to add main IRQs: %d\n", ret);
		goto err_aod;
	}

	/* Used to emulate edge trigger and to work around broken pinmux */
	if (arizona->pdata.irq_gpio) {
		if (gpio_to_irq(arizona->pdata.irq_gpio) != arizona->irq) {
			dev_warn(arizona->dev, "IRQ %d is not GPIO %d (%d)\n",
				 arizona->irq, arizona->pdata.irq_gpio,
				 gpio_to_irq(arizona->pdata.irq_gpio));
			arizona->irq = gpio_to_irq(arizona->pdata.irq_gpio);
		}

		ret = devm_gpio_request_one(arizona->dev,
					    arizona->pdata.irq_gpio,
					    GPIOF_IN, "arizona IRQ");
		if (ret != 0) {
			dev_err(arizona->dev,
				"Failed to request IRQ GPIO %d:: %d\n",
				arizona->pdata.irq_gpio, ret);
			arizona->pdata.irq_gpio = 0;
		}
	}

	ret = request_threaded_irq(arizona->irq, NULL, arizona_irq_thread,
				   flags, "arizona", arizona);

	if (ret != 0) {
		dev_err(arizona->dev, "Failed to request primary IRQ %d: %d\n",
			arizona->irq, ret);
		goto err_main_irq;
	}

	/* Make sure the boot done IRQ is unmasked for resumes */
	i = arizona_map_irq(arizona, ARIZONA_IRQ_BOOT_DONE);
	ret = request_threaded_irq(i, NULL, arizona_boot_done, IRQF_ONESHOT,
				   "Boot done", arizona);
	if (ret != 0) {
		dev_err(arizona->dev, "Failed to request boot done %d: %d\n",
			arizona->irq, ret);
		goto err_boot_done;
	}

	/* Handle control interface errors in the core */
	if (arizona->ctrlif_error) {
		i = arizona_map_irq(arizona, ARIZONA_IRQ_CTRLIF_ERR);
		ret = request_threaded_irq(i, NULL, arizona_ctrlif_err,
					   IRQF_ONESHOT,
					   "Control interface error", arizona);
		if (ret != 0) {
			dev_err(arizona->dev,
				"Failed to request CTRLIF_ERR %d: %d\n",
				arizona->irq, ret);
			goto err_ctrlif;
		}
	}

	return 0;

err_ctrlif:
	free_irq(arizona_map_irq(arizona, ARIZONA_IRQ_BOOT_DONE), arizona);
err_boot_done:
	free_irq(arizona->irq, arizona);
err_main_irq:
	regmap_del_irq_chip(irq_create_mapping(arizona->virq, 1),
			    arizona->irq_chip);
err_aod:
	regmap_del_irq_chip(irq_create_mapping(arizona->virq, 0),
			    arizona->aod_irq_chip);
err:
	return ret;
}

int arizona_irq_exit(struct arizona *arizona)
{
	if (arizona->ctrlif_error)
		free_irq(arizona_map_irq(arizona, ARIZONA_IRQ_CTRLIF_ERR),
			 arizona);
	free_irq(arizona_map_irq(arizona, ARIZONA_IRQ_BOOT_DONE), arizona);
	regmap_del_irq_chip(irq_create_mapping(arizona->virq, 1),
			    arizona->irq_chip);
	regmap_del_irq_chip(irq_create_mapping(arizona->virq, 0),
			    arizona->aod_irq_chip);
	free_irq(arizona->irq, arizona);

	return 0;
}
Commit	Line	Data
966cdc96 MB	1	/*
	2	* Arizona interrupt support
	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/gpio.h>
	15	#include <linux/interrupt.h>
	16	#include <linux/irq.h>
	17	#include <linux/irqdomain.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 int arizona_map_irq(struct arizona *arizona, int irq)
	30	{
	31	int ret;
	32
ea1f3339 RF	33	if (arizona->aod_irq_chip) {
	34	ret = regmap_irq_get_virq(arizona->aod_irq_chip, irq);
	35	if (ret >= 0)
	36	return ret;
	37	}
966cdc96	38
ea1f3339	39	return regmap_irq_get_virq(arizona->irq_chip, irq);
966cdc96 MB	40	}
	41
	42	int arizona_request_irq(struct arizona arizona, int irq, char name,
	43	irq_handler_t handler, void *data)
	44	{
	45	irq = arizona_map_irq(arizona, irq);
	46	if (irq < 0)
	47	return irq;
	48
	49	return request_threaded_irq(irq, NULL, handler, IRQF_ONESHOT,
	50	name, data);
	51	}
	52	EXPORT_SYMBOL_GPL(arizona_request_irq);
	53
	54	void arizona_free_irq(struct arizona arizona, int irq, void data)
	55	{
	56	irq = arizona_map_irq(arizona, irq);
	57	if (irq < 0)
	58	return;
	59
	60	free_irq(irq, data);
	61	}
	62	EXPORT_SYMBOL_GPL(arizona_free_irq);
	63
	64	int arizona_set_irq_wake(struct arizona *arizona, int irq, int on)
	65	{
	66	irq = arizona_map_irq(arizona, irq);
	67	if (irq < 0)
	68	return irq;
	69
	70	return irq_set_irq_wake(irq, on);
	71	}
	72	EXPORT_SYMBOL_GPL(arizona_set_irq_wake);
	73
	74	static irqreturn_t arizona_boot_done(int irq, void *data)
	75	{
	76	struct arizona *arizona = data;
	77
	78	dev_dbg(arizona->dev, "Boot done\n");
	79
	80	return IRQ_HANDLED;
	81	}
	82
	83	static irqreturn_t arizona_ctrlif_err(int irq, void *data)
	84	{
	85	struct arizona *arizona = data;
	86
	87	/*
	88	* For pretty much all potential sources a register cache sync
	89	* won't help, we've just got a software bug somewhere.
	90	*/
	91	dev_err(arizona->dev, "Control interface error\n");
	92
	93	return IRQ_HANDLED;
	94	}
	95
	96	static irqreturn_t arizona_irq_thread(int irq, void *data)
	97	{
	98	struct arizona *arizona = data;
3092f805	99	bool poll;
3080de4e	100	unsigned int val;
cdabc1c8	101	int ret;
966cdc96 MB	102
	103	ret = pm_runtime_get_sync(arizona->dev);
	104	if (ret < 0) {
	105	dev_err(arizona->dev, "Failed to resume device: %d\n", ret);
	106	return IRQ_NONE;
	107	}
	108
3092f805 MB	109	do {
	110	poll = false;
	111
ea1f3339 RF	112	if (arizona->aod_irq_chip)
ea1f3339 RF	113	handle_nested_irq(irq_find_mapping(arizona->virq, 0));
3092f805 MB	114
	115	/*
	116	* Check if one of the main interrupts is asserted and only
	117	* check that domain if it is.
	118	*/
	119	ret = regmap_read(arizona->regmap, ARIZONA_IRQ_PIN_STATUS,
	120	&val);
	121	if (ret == 0 && val & ARIZONA_IRQ1_STS) {
	122	handle_nested_irq(irq_find_mapping(arizona->virq, 1));
	123	} else if (ret != 0) {
	124	dev_err(arizona->dev,
	125	"Failed to read main IRQ status: %d\n", ret);
	126	}
3080de4e	127
3092f805 MB	128	/*
	129	* Poll the IRQ pin status to see if we're really done
	130	* if the interrupt controller can't do it for us.
	131	*/
	132	if (!arizona->pdata.irq_gpio) {
	133	break;
	134	} else if (arizona->pdata.irq_flags & IRQF_TRIGGER_RISING &&
	135	gpio_get_value_cansleep(arizona->pdata.irq_gpio)) {
	136	poll = true;
	137	} else if (arizona->pdata.irq_flags & IRQF_TRIGGER_FALLING &&
	138	!gpio_get_value_cansleep(arizona->pdata.irq_gpio)) {
	139	poll = true;
	140	}
	141	} while (poll);
966cdc96 MB	142
	143	pm_runtime_mark_last_busy(arizona->dev);
	144	pm_runtime_put_autosuspend(arizona->dev);
	145
	146	return IRQ_HANDLED;
	147	}
	148
	149	static void arizona_irq_enable(struct irq_data *data)
	150	{
	151	}
	152
	153	static void arizona_irq_disable(struct irq_data *data)
	154	{
	155	}
	156
c38715fe CK	157	static int arizona_irq_set_wake(struct irq_data *data, unsigned int on)
	158	{
	159	struct arizona *arizona = irq_data_get_irq_chip_data(data);
	160
	161	return irq_set_irq_wake(arizona->irq, on);
	162	}
	163
966cdc96 MB	164	static struct irq_chip arizona_irq_chip = {
	165	.name = "arizona",
	166	.irq_disable = arizona_irq_disable,
	167	.irq_enable = arizona_irq_enable,
c38715fe	168	.irq_set_wake = arizona_irq_set_wake,
966cdc96 MB	169	};
966cdc96 MB	170
dedf24a2 CK	171	static struct lock_class_key arizona_irq_lock_class;
dedf24a2 CK	172
966cdc96 MB	173	static int arizona_irq_map(struct irq_domain *h, unsigned int virq,
	174	irq_hw_number_t hw)
	175	{
0a464dfd	176	struct arizona *data = h->host_data;
966cdc96 MB	177
966cdc96 MB	178	irq_set_chip_data(virq, data);
dedf24a2	179	irq_set_lockdep_class(virq, &arizona_irq_lock_class);
cfeb35da	180	irq_set_chip_and_handler(virq, &arizona_irq_chip, handle_simple_irq);
966cdc96	181	irq_set_nested_thread(virq, 1);
966cdc96	182	irq_set_noprobe(virq);
966cdc96 MB	183
	184	return 0;
	185	}
	186
7ce7b26f	187	static const struct irq_domain_ops arizona_domain_ops = {
966cdc96 MB	188	.map = arizona_irq_map,
	189	.xlate = irq_domain_xlate_twocell,
	190	};
	191
	192	int arizona_irq_init(struct arizona *arizona)
	193	{
	194	int flags = IRQF_ONESHOT;
	195	int ret, i;
	196	const struct regmap_irq_chip aod, irq;
22c75fe7	197	struct irq_data *irq_data;
966cdc96	198
30a2af3a CK	199	arizona->ctrlif_error = true;
30a2af3a CK	200
966cdc96	201	switch (arizona->type) {
863df8d5	202	#ifdef CONFIG_MFD_WM5102
966cdc96 MB	203	case WM5102:
	204	aod = &wm5102_aod;
	205	irq = &wm5102_irq;
92d80139	206
30a2af3a	207	arizona->ctrlif_error = false;
966cdc96	208	break;
e102befe MB	209	#endif
	210	#ifdef CONFIG_MFD_WM5110
	211	case WM5110:
e5d4ef0d	212	case WM8280:
e102befe	213	aod = &wm5110_aod;
3215501f CK	214
	215	switch (arizona->rev) {
	216	case 0 ... 2:
	217	irq = &wm5110_irq;
	218	break;
	219	default:
	220	irq = &wm5110_revd_irq;
	221	break;
	222	}
92d80139	223
30a2af3a	224	arizona->ctrlif_error = false;
e102befe	225	break;
863df8d5	226	#endif
ea1f3339 RF	227	#ifdef CONFIG_MFD_CS47L24
	228	case WM1831:
	229	case CS47L24:
	230	aod = NULL;
	231	irq = &cs47l24_irq;
	232
	233	arizona->ctrlif_error = false;
	234	break;
	235	#endif
dc7d4863 CK	236	#ifdef CONFIG_MFD_WM8997
	237	case WM8997:
	238	aod = &wm8997_aod;
	239	irq = &wm8997_irq;
	240
30a2af3a	241	arizona->ctrlif_error = false;
dc7d4863 CK	242	break;
dc7d4863 CK	243	#endif
6887b042 RF	244	#ifdef CONFIG_MFD_WM8998
	245	case WM8998:
	246	case WM1814:
	247	aod = &wm8998_aod;
	248	irq = &wm8998_irq;
	249
	250	arizona->ctrlif_error = false;
	251	break;
	252	#endif
966cdc96 MB	253	default:
	254	BUG_ON("Unknown Arizona class device" == NULL);
	255	return -EINVAL;
	256	}
	257
1816cb34 MB	258	/* Disable all wake sources by default */
	259	regmap_write(arizona->regmap, ARIZONA_WAKE_CONTROL, 0);
	260
22c75fe7 MB	261	/* Read the flags from the interrupt controller if not specified */
	262	if (!arizona->pdata.irq_flags) {
	263	irq_data = irq_get_irq_data(arizona->irq);
	264	if (!irq_data) {
	265	dev_err(arizona->dev, "Invalid IRQ: %d\n",
	266	arizona->irq);
	267	return -EINVAL;
	268	}
	269
	270	arizona->pdata.irq_flags = irqd_get_trigger_type(irq_data);
	271	switch (arizona->pdata.irq_flags) {
	272	case IRQF_TRIGGER_LOW:
	273	case IRQF_TRIGGER_HIGH:
	274	case IRQF_TRIGGER_RISING:
	275	case IRQF_TRIGGER_FALLING:
	276	break;
	277
	278	case IRQ_TYPE_NONE:
	279	default:
	280	/* Device default */
	281	arizona->pdata.irq_flags = IRQF_TRIGGER_LOW;
	282	break;
	283	}
	284	}
f8a0941f MB	285
	286	if (arizona->pdata.irq_flags & (IRQF_TRIGGER_HIGH \|
	287	IRQF_TRIGGER_RISING)) {
966cdc96 MB	288	ret = regmap_update_bits(arizona->regmap, ARIZONA_IRQ_CTRL_1,
	289	ARIZONA_IRQ_POL, 0);
	290	if (ret != 0) {
	291	dev_err(arizona->dev, "Couldn't set IRQ polarity: %d\n",
	292	ret);
	293	goto err;
	294	}
966cdc96 MB	295	}
966cdc96 MB	296
f8a0941f MB	297	flags \|= arizona->pdata.irq_flags;
f8a0941f MB	298
966cdc96 MB	299	/* Allocate a virtual IRQ domain to distribute to the regmap domains */
	300	arizona->virq = irq_domain_add_linear(NULL, 2, &arizona_domain_ops,
	301	arizona);
	302	if (!arizona->virq) {
b7dea5dc	303	dev_err(arizona->dev, "Failed to add core IRQ domain\n");
966cdc96 MB	304	ret = -EINVAL;
	305	goto err;
	306	}
	307
ea1f3339 RF	308	if (aod) {
	309	ret = regmap_add_irq_chip(arizona->regmap,
	310	irq_create_mapping(arizona->virq, 0),
	311	IRQF_ONESHOT, 0, aod,
	312	&arizona->aod_irq_chip);
	313	if (ret != 0) {
	314	dev_err(arizona->dev,
	315	"Failed to add AOD IRQs: %d\n", ret);
6c006b1b	316	goto err;
ea1f3339	317	}
966cdc96 MB	318	}
	319
	320	ret = regmap_add_irq_chip(arizona->regmap,
	321	irq_create_mapping(arizona->virq, 1),
2a3377ee	322	IRQF_ONESHOT, 0, irq,
966cdc96 MB	323	&arizona->irq_chip);
966cdc96 MB	324	if (ret != 0) {
d1cb4cc9	325	dev_err(arizona->dev, "Failed to add main IRQs: %d\n", ret);
966cdc96 MB	326	goto err_aod;
	327	}
	328
3092f805 MB	329	/* Used to emulate edge trigger and to work around broken pinmux */
	330	if (arizona->pdata.irq_gpio) {
	331	if (gpio_to_irq(arizona->pdata.irq_gpio) != arizona->irq) {
	332	dev_warn(arizona->dev, "IRQ %d is not GPIO %d (%d)\n",
	333	arizona->irq, arizona->pdata.irq_gpio,
	334	gpio_to_irq(arizona->pdata.irq_gpio));
	335	arizona->irq = gpio_to_irq(arizona->pdata.irq_gpio);
	336	}
	337
	338	ret = devm_gpio_request_one(arizona->dev,
	339	arizona->pdata.irq_gpio,
	340	GPIOF_IN, "arizona IRQ");
	341	if (ret != 0) {
	342	dev_err(arizona->dev,
	343	"Failed to request IRQ GPIO %d:: %d\n",
	344	arizona->pdata.irq_gpio, ret);
	345	arizona->pdata.irq_gpio = 0;
	346	}
	347	}
	348
966cdc96 MB	349	ret = request_threaded_irq(arizona->irq, NULL, arizona_irq_thread,
	350	flags, "arizona", arizona);
	351
	352	if (ret != 0) {
7994c664	353	dev_err(arizona->dev, "Failed to request primary IRQ %d: %d\n",
966cdc96 MB	354	arizona->irq, ret);
	355	goto err_main_irq;
	356	}
	357
6c006b1b CK	358	/* Make sure the boot done IRQ is unmasked for resumes */
	359	i = arizona_map_irq(arizona, ARIZONA_IRQ_BOOT_DONE);
	360	ret = request_threaded_irq(i, NULL, arizona_boot_done, IRQF_ONESHOT,
	361	"Boot done", arizona);
	362	if (ret != 0) {
	363	dev_err(arizona->dev, "Failed to request boot done %d: %d\n",
	364	arizona->irq, ret);
	365	goto err_boot_done;
	366	}
	367
	368	/* Handle control interface errors in the core */
	369	if (arizona->ctrlif_error) {
	370	i = arizona_map_irq(arizona, ARIZONA_IRQ_CTRLIF_ERR);
	371	ret = request_threaded_irq(i, NULL, arizona_ctrlif_err,
	372	IRQF_ONESHOT,
	373	"Control interface error", arizona);
	374	if (ret != 0) {
	375	dev_err(arizona->dev,
	376	"Failed to request CTRLIF_ERR %d: %d\n",
	377	arizona->irq, ret);
	378	goto err_ctrlif;
	379	}
	380	}
	381
966cdc96 MB	382	return 0;
966cdc96 MB	383
966cdc96 MB	384	err_ctrlif:
	385	free_irq(arizona_map_irq(arizona, ARIZONA_IRQ_BOOT_DONE), arizona);
	386	err_boot_done:
6c006b1b CK	387	free_irq(arizona->irq, arizona);
6c006b1b CK	388	err_main_irq:
966cdc96 MB	389	regmap_del_irq_chip(irq_create_mapping(arizona->virq, 1),
	390	arizona->irq_chip);
	391	err_aod:
	392	regmap_del_irq_chip(irq_create_mapping(arizona->virq, 0),
	393	arizona->aod_irq_chip);
966cdc96 MB	394	err:
	395	return ret;
	396	}
	397
	398	int arizona_irq_exit(struct arizona *arizona)
	399	{
30a2af3a CK	400	if (arizona->ctrlif_error)
	401	free_irq(arizona_map_irq(arizona, ARIZONA_IRQ_CTRLIF_ERR),
	402	arizona);
966cdc96 MB	403	free_irq(arizona_map_irq(arizona, ARIZONA_IRQ_BOOT_DONE), arizona);
	404	regmap_del_irq_chip(irq_create_mapping(arizona->virq, 1),
	405	arizona->irq_chip);
	406	regmap_del_irq_chip(irq_create_mapping(arizona->virq, 0),
	407	arizona->aod_irq_chip);
	408	free_irq(arizona->irq, arizona);
	409
	410	return 0;
	411	}