[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;

	ret = regmap_irq_get_virq(arizona->aod_irq_chip, irq);
	if (ret < 0)
		ret = regmap_irq_get_virq(arizona->irq_chip, irq);

	return ret;
}

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;

		/* Always handle the AoD domain */
		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 struct irq_chip arizona_irq_chip = {
	.name			= "arizona",
	.irq_disable		= arizona_irq_disable,
	.irq_enable		= arizona_irq_enable,
};

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

	irq_set_chip_data(virq, data);
	irq_set_chip_and_handler(virq, &arizona_irq_chip, handle_edge_irq);
	irq_set_nested_thread(virq, 1);

	/* ARM needs us to explicitly flag the IRQ as valid
	 * and will set them noprobe when we do so. */
#ifdef CONFIG_ARM
	set_irq_flags(virq, IRQF_VALID);
#else
	irq_set_noprobe(virq);
#endif

	return 0;
}

static 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;
	bool ctrlif_error = true;
	struct irq_data *irq_data;

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

		ctrlif_error = false;
		break;
#endif
#ifdef CONFIG_MFD_WM5110
	case WM5110:
		aod = &wm5110_aod;
		irq = &wm5110_irq;

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

		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;
	}

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

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

	/* 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 (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;
		}
	}

	/* 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;
	}

	return 0;

err_main_irq:
	free_irq(arizona_map_irq(arizona, ARIZONA_IRQ_CTRLIF_ERR), arizona);
err_ctrlif:
	free_irq(arizona_map_irq(arizona, ARIZONA_IRQ_BOOT_DONE), arizona);
err_boot_done:
	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_domain:
err:
	return ret;
}

int arizona_irq_exit(struct arizona *arizona)
{
	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
	33	ret = regmap_irq_get_virq(arizona->aod_irq_chip, irq);
	34	if (ret < 0)
	35	ret = regmap_irq_get_virq(arizona->irq_chip, irq);
	36
	37	return ret;
	38	}
	39
	40	int arizona_request_irq(struct arizona arizona, int irq, char name,
	41	irq_handler_t handler, void *data)
	42	{
	43	irq = arizona_map_irq(arizona, irq);
	44	if (irq < 0)
	45	return irq;
	46
	47	return request_threaded_irq(irq, NULL, handler, IRQF_ONESHOT,
	48	name, data);
	49	}
	50	EXPORT_SYMBOL_GPL(arizona_request_irq);
	51
	52	void arizona_free_irq(struct arizona arizona, int irq, void data)
	53	{
	54	irq = arizona_map_irq(arizona, irq);
	55	if (irq < 0)
	56	return;
	57
	58	free_irq(irq, data);
	59	}
	60	EXPORT_SYMBOL_GPL(arizona_free_irq);
	61
	62	int arizona_set_irq_wake(struct arizona *arizona, int irq, int on)
	63	{
	64	irq = arizona_map_irq(arizona, irq);
65	if (irq < 0)
66	return irq;
67
68	return irq_set_irq_wake(irq, on);
69	}
70	EXPORT_SYMBOL_GPL(arizona_set_irq_wake);
71
72	static irqreturn_t arizona_boot_done(int irq, void *data)
73	{
74	struct arizona *arizona = data;
75
76	dev_dbg(arizona->dev, "Boot done\n");
77
78	return IRQ_HANDLED;
79	}
80
81	static irqreturn_t arizona_ctrlif_err(int irq, void *data)
82	{
83	struct arizona *arizona = data;
84
85	/*
86	* For pretty much all potential sources a register cache sync
87	* won't help, we've just got a software bug somewhere.
88	*/
89	dev_err(arizona->dev, "Control interface error\n");
90
91	return IRQ_HANDLED;
92	}
93
94	static irqreturn_t arizona_irq_thread(int irq, void *data)
95	{
96	struct arizona *arizona = data;
3092f805	97	bool poll;
3080de4e	98	unsigned int val;
cdabc1c8	99	int ret;
966cdc96 MB	100
	101	ret = pm_runtime_get_sync(arizona->dev);
	102	if (ret < 0) {
	103	dev_err(arizona->dev, "Failed to resume device: %d\n", ret);
	104	return IRQ_NONE;
	105	}
	106
3092f805 MB	107	do {
	108	poll = false;
	109
	110	/* Always handle the AoD domain */
	111	handle_nested_irq(irq_find_mapping(arizona->virq, 0));
	112
	113	/*
	114	* Check if one of the main interrupts is asserted and only
	115	* check that domain if it is.
	116	*/
	117	ret = regmap_read(arizona->regmap, ARIZONA_IRQ_PIN_STATUS,
	118	&val);
	119	if (ret == 0 && val & ARIZONA_IRQ1_STS) {
	120	handle_nested_irq(irq_find_mapping(arizona->virq, 1));
	121	} else if (ret != 0) {
	122	dev_err(arizona->dev,
	123	"Failed to read main IRQ status: %d\n", ret);
	124	}
3080de4e	125
3092f805 MB	126	/*
	127	* Poll the IRQ pin status to see if we're really done
	128	* if the interrupt controller can't do it for us.
	129	*/
	130	if (!arizona->pdata.irq_gpio) {
	131	break;
	132	} else if (arizona->pdata.irq_flags & IRQF_TRIGGER_RISING &&
	133	gpio_get_value_cansleep(arizona->pdata.irq_gpio)) {
	134	poll = true;
	135	} else if (arizona->pdata.irq_flags & IRQF_TRIGGER_FALLING &&
	136	!gpio_get_value_cansleep(arizona->pdata.irq_gpio)) {
	137	poll = true;
	138	}
	139	} while (poll);
966cdc96 MB	140
	141	pm_runtime_mark_last_busy(arizona->dev);
	142	pm_runtime_put_autosuspend(arizona->dev);
	143
	144	return IRQ_HANDLED;
	145	}
	146
	147	static void arizona_irq_enable(struct irq_data *data)
	148	{
	149	}
	150
	151	static void arizona_irq_disable(struct irq_data *data)
	152	{
	153	}
	154
	155	static struct irq_chip arizona_irq_chip = {
	156	.name = "arizona",
	157	.irq_disable = arizona_irq_disable,
	158	.irq_enable = arizona_irq_enable,
	159	};
	160
	161	static int arizona_irq_map(struct irq_domain *h, unsigned int virq,
	162	irq_hw_number_t hw)
	163	{
	164	struct regmap_irq_chip_data *data = h->host_data;
	165
	166	irq_set_chip_data(virq, data);
	167	irq_set_chip_and_handler(virq, &arizona_irq_chip, handle_edge_irq);
	168	irq_set_nested_thread(virq, 1);
	169
	170	/* ARM needs us to explicitly flag the IRQ as valid
	171	* and will set them noprobe when we do so. */
	172	#ifdef CONFIG_ARM
	173	set_irq_flags(virq, IRQF_VALID);
	174	#else
	175	irq_set_noprobe(virq);
	176	#endif
	177
	178	return 0;
	179	}
	180
	181	static struct irq_domain_ops arizona_domain_ops = {
	182	.map = arizona_irq_map,
	183	.xlate = irq_domain_xlate_twocell,
	184	};
	185
	186	int arizona_irq_init(struct arizona *arizona)
	187	{
	188	int flags = IRQF_ONESHOT;
	189	int ret, i;
	190	const struct regmap_irq_chip aod, irq;
92d80139	191	bool ctrlif_error = true;
22c75fe7	192	struct irq_data *irq_data;
966cdc96 MB	193
966cdc96 MB	194	switch (arizona->type) {
863df8d5	195	#ifdef CONFIG_MFD_WM5102
966cdc96 MB	196	case WM5102:
	197	aod = &wm5102_aod;
	198	irq = &wm5102_irq;
92d80139	199
e1bfe75d	200	ctrlif_error = false;
966cdc96	201	break;
e102befe MB	202	#endif
	203	#ifdef CONFIG_MFD_WM5110
	204	case WM5110:
	205	aod = &wm5110_aod;
	206	irq = &wm5110_irq;
92d80139	207
e1bfe75d	208	ctrlif_error = false;
e102befe	209	break;
863df8d5	210	#endif
dc7d4863 CK	211	#ifdef CONFIG_MFD_WM8997
	212	case WM8997:
	213	aod = &wm8997_aod;
	214	irq = &wm8997_irq;
	215
	216	ctrlif_error = false;
	217	break;
	218	#endif
966cdc96 MB	219	default:
	220	BUG_ON("Unknown Arizona class device" == NULL);
	221	return -EINVAL;
	222	}
	223
1816cb34 MB	224	/* Disable all wake sources by default */
	225	regmap_write(arizona->regmap, ARIZONA_WAKE_CONTROL, 0);
	226
22c75fe7 MB	227	/* Read the flags from the interrupt controller if not specified */
	228	if (!arizona->pdata.irq_flags) {
	229	irq_data = irq_get_irq_data(arizona->irq);
	230	if (!irq_data) {
	231	dev_err(arizona->dev, "Invalid IRQ: %d\n",
	232	arizona->irq);
	233	return -EINVAL;
	234	}
	235
	236	arizona->pdata.irq_flags = irqd_get_trigger_type(irq_data);
	237	switch (arizona->pdata.irq_flags) {
	238	case IRQF_TRIGGER_LOW:
	239	case IRQF_TRIGGER_HIGH:
	240	case IRQF_TRIGGER_RISING:
	241	case IRQF_TRIGGER_FALLING:
	242	break;
	243
	244	case IRQ_TYPE_NONE:
	245	default:
	246	/* Device default */
	247	arizona->pdata.irq_flags = IRQF_TRIGGER_LOW;
	248	break;
	249	}
	250	}
f8a0941f MB	251
	252	if (arizona->pdata.irq_flags & (IRQF_TRIGGER_HIGH \|
	253	IRQF_TRIGGER_RISING)) {
966cdc96 MB	254	ret = regmap_update_bits(arizona->regmap, ARIZONA_IRQ_CTRL_1,
	255	ARIZONA_IRQ_POL, 0);
	256	if (ret != 0) {
	257	dev_err(arizona->dev, "Couldn't set IRQ polarity: %d\n",
	258	ret);
	259	goto err;
	260	}
966cdc96 MB	261	}
966cdc96 MB	262
f8a0941f MB	263	flags \|= arizona->pdata.irq_flags;
f8a0941f MB	264
966cdc96 MB	265	/* Allocate a virtual IRQ domain to distribute to the regmap domains */
	266	arizona->virq = irq_domain_add_linear(NULL, 2, &arizona_domain_ops,
	267	arizona);
	268	if (!arizona->virq) {
b7dea5dc	269	dev_err(arizona->dev, "Failed to add core IRQ domain\n");
966cdc96 MB	270	ret = -EINVAL;
	271	goto err;
	272	}
	273
	274	ret = regmap_add_irq_chip(arizona->regmap,
	275	irq_create_mapping(arizona->virq, 0),
	276	IRQF_ONESHOT, -1, aod,
	277	&arizona->aod_irq_chip);
	278	if (ret != 0) {
	279	dev_err(arizona->dev, "Failed to add AOD IRQs: %d\n", ret);
	280	goto err_domain;
	281	}
	282
	283	ret = regmap_add_irq_chip(arizona->regmap,
	284	irq_create_mapping(arizona->virq, 1),
	285	IRQF_ONESHOT, -1, irq,
	286	&arizona->irq_chip);
	287	if (ret != 0) {
	288	dev_err(arizona->dev, "Failed to add AOD IRQs: %d\n", ret);
	289	goto err_aod;
	290	}
	291
	292	/* Make sure the boot done IRQ is unmasked for resumes */
	293	i = arizona_map_irq(arizona, ARIZONA_IRQ_BOOT_DONE);
	294	ret = request_threaded_irq(i, NULL, arizona_boot_done, IRQF_ONESHOT,
	295	"Boot done", arizona);
	296	if (ret != 0) {
	297	dev_err(arizona->dev, "Failed to request boot done %d: %d\n",
	298	arizona->irq, ret);
	299	goto err_boot_done;
	300	}
	301
	302	/* Handle control interface errors in the core */
92d80139 MB	303	if (ctrlif_error) {
	304	i = arizona_map_irq(arizona, ARIZONA_IRQ_CTRLIF_ERR);
	305	ret = request_threaded_irq(i, NULL, arizona_ctrlif_err,
	306	IRQF_ONESHOT,
	307	"Control interface error", arizona);
	308	if (ret != 0) {
	309	dev_err(arizona->dev,
	310	"Failed to request CTRLIF_ERR %d: %d\n",
	311	arizona->irq, ret);
	312	goto err_ctrlif;
	313	}
966cdc96 MB	314	}
966cdc96 MB	315
3092f805 MB	316	/* Used to emulate edge trigger and to work around broken pinmux */
	317	if (arizona->pdata.irq_gpio) {
	318	if (gpio_to_irq(arizona->pdata.irq_gpio) != arizona->irq) {
	319	dev_warn(arizona->dev, "IRQ %d is not GPIO %d (%d)\n",
	320	arizona->irq, arizona->pdata.irq_gpio,
	321	gpio_to_irq(arizona->pdata.irq_gpio));
	322	arizona->irq = gpio_to_irq(arizona->pdata.irq_gpio);
	323	}
	324
	325	ret = devm_gpio_request_one(arizona->dev,
	326	arizona->pdata.irq_gpio,
	327	GPIOF_IN, "arizona IRQ");
	328	if (ret != 0) {
	329	dev_err(arizona->dev,
	330	"Failed to request IRQ GPIO %d:: %d\n",
	331	arizona->pdata.irq_gpio, ret);
	332	arizona->pdata.irq_gpio = 0;
	333	}
	334	}
	335
966cdc96 MB	336	ret = request_threaded_irq(arizona->irq, NULL, arizona_irq_thread,
	337	flags, "arizona", arizona);
	338
	339	if (ret != 0) {
7994c664	340	dev_err(arizona->dev, "Failed to request primary IRQ %d: %d\n",
966cdc96 MB	341	arizona->irq, ret);
	342	goto err_main_irq;
	343	}
	344
	345	return 0;
	346
	347	err_main_irq:
	348	free_irq(arizona_map_irq(arizona, ARIZONA_IRQ_CTRLIF_ERR), arizona);
	349	err_ctrlif:
	350	free_irq(arizona_map_irq(arizona, ARIZONA_IRQ_BOOT_DONE), arizona);
	351	err_boot_done:
	352	regmap_del_irq_chip(irq_create_mapping(arizona->virq, 1),
	353	arizona->irq_chip);
	354	err_aod:
	355	regmap_del_irq_chip(irq_create_mapping(arizona->virq, 0),
	356	arizona->aod_irq_chip);
	357	err_domain:
	358	err:
	359	return ret;
	360	}
	361
	362	int arizona_irq_exit(struct arizona *arizona)
	363	{
	364	free_irq(arizona_map_irq(arizona, ARIZONA_IRQ_CTRLIF_ERR), arizona);
	365	free_irq(arizona_map_irq(arizona, ARIZONA_IRQ_BOOT_DONE), arizona);
	366	regmap_del_irq_chip(irq_create_mapping(arizona->virq, 1),
	367	arizona->irq_chip);
	368	regmap_del_irq_chip(irq_create_mapping(arizona->virq, 0),
	369	arizona->aod_irq_chip);
	370	free_irq(arizona->irq, arizona);
	371
	372	return 0;
	373	}