[deliverable/linux.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 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 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_simple_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;
	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:
		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_WM8997
	case WM8997:
		aod = &wm8997_aod;
		irq = &wm8997_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;
	}

	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_domain;
	}

	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;
	}

	/* 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;
		}
	}

	/* 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:
	if (arizona->ctrlif_error)
		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)
{
	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
	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
c38715fe CK	155	static int arizona_irq_set_wake(struct irq_data *data, unsigned int on)
	156	{
	157	struct arizona *arizona = irq_data_get_irq_chip_data(data);
	158
	159	return irq_set_irq_wake(arizona->irq, on);
	160	}
	161
966cdc96 MB	162	static struct irq_chip arizona_irq_chip = {
	163	.name = "arizona",
	164	.irq_disable = arizona_irq_disable,
	165	.irq_enable = arizona_irq_enable,
c38715fe	166	.irq_set_wake = arizona_irq_set_wake,
966cdc96 MB	167	};
	168
	169	static int arizona_irq_map(struct irq_domain *h, unsigned int virq,
	170	irq_hw_number_t hw)
	171	{
	172	struct regmap_irq_chip_data *data = h->host_data;
	173
	174	irq_set_chip_data(virq, data);
cfeb35da	175	irq_set_chip_and_handler(virq, &arizona_irq_chip, handle_simple_irq);
966cdc96 MB	176	irq_set_nested_thread(virq, 1);
	177
	178	/* ARM needs us to explicitly flag the IRQ as valid
	179	* and will set them noprobe when we do so. */
	180	#ifdef CONFIG_ARM
	181	set_irq_flags(virq, IRQF_VALID);
	182	#else
	183	irq_set_noprobe(virq);
	184	#endif
	185
	186	return 0;
	187	}
	188
	189	static struct irq_domain_ops arizona_domain_ops = {
	190	.map = arizona_irq_map,
	191	.xlate = irq_domain_xlate_twocell,
	192	};
	193
	194	int arizona_irq_init(struct arizona *arizona)
	195	{
	196	int flags = IRQF_ONESHOT;
	197	int ret, i;
	198	const struct regmap_irq_chip aod, irq;
22c75fe7	199	struct irq_data *irq_data;
966cdc96	200
30a2af3a CK	201	arizona->ctrlif_error = true;
30a2af3a CK	202
966cdc96	203	switch (arizona->type) {
863df8d5	204	#ifdef CONFIG_MFD_WM5102
966cdc96 MB	205	case WM5102:
	206	aod = &wm5102_aod;
	207	irq = &wm5102_irq;
92d80139	208
30a2af3a	209	arizona->ctrlif_error = false;
966cdc96	210	break;
e102befe MB	211	#endif
	212	#ifdef CONFIG_MFD_WM5110
	213	case WM5110:
	214	aod = &wm5110_aod;
3215501f CK	215
	216	switch (arizona->rev) {
	217	case 0 ... 2:
	218	irq = &wm5110_irq;
	219	break;
	220	default:
	221	irq = &wm5110_revd_irq;
	222	break;
	223	}
92d80139	224
30a2af3a	225	arizona->ctrlif_error = false;
e102befe	226	break;
863df8d5	227	#endif
dc7d4863 CK	228	#ifdef CONFIG_MFD_WM8997
	229	case WM8997:
	230	aod = &wm8997_aod;
	231	irq = &wm8997_irq;
	232
30a2af3a	233	arizona->ctrlif_error = false;
dc7d4863 CK	234	break;
dc7d4863 CK	235	#endif
966cdc96 MB	236	default:
	237	BUG_ON("Unknown Arizona class device" == NULL);
	238	return -EINVAL;
	239	}
	240
1816cb34 MB	241	/* Disable all wake sources by default */
	242	regmap_write(arizona->regmap, ARIZONA_WAKE_CONTROL, 0);
	243
22c75fe7 MB	244	/* Read the flags from the interrupt controller if not specified */
	245	if (!arizona->pdata.irq_flags) {
	246	irq_data = irq_get_irq_data(arizona->irq);
	247	if (!irq_data) {
	248	dev_err(arizona->dev, "Invalid IRQ: %d\n",
	249	arizona->irq);
	250	return -EINVAL;
	251	}
	252
	253	arizona->pdata.irq_flags = irqd_get_trigger_type(irq_data);
	254	switch (arizona->pdata.irq_flags) {
	255	case IRQF_TRIGGER_LOW:
	256	case IRQF_TRIGGER_HIGH:
	257	case IRQF_TRIGGER_RISING:
	258	case IRQF_TRIGGER_FALLING:
	259	break;
	260
	261	case IRQ_TYPE_NONE:
	262	default:
	263	/* Device default */
	264	arizona->pdata.irq_flags = IRQF_TRIGGER_LOW;
	265	break;
	266	}
	267	}
f8a0941f MB	268
	269	if (arizona->pdata.irq_flags & (IRQF_TRIGGER_HIGH \|
	270	IRQF_TRIGGER_RISING)) {
966cdc96 MB	271	ret = regmap_update_bits(arizona->regmap, ARIZONA_IRQ_CTRL_1,
	272	ARIZONA_IRQ_POL, 0);
	273	if (ret != 0) {
	274	dev_err(arizona->dev, "Couldn't set IRQ polarity: %d\n",
	275	ret);
	276	goto err;
	277	}
966cdc96 MB	278	}
966cdc96 MB	279
f8a0941f MB	280	flags \|= arizona->pdata.irq_flags;
f8a0941f MB	281
966cdc96 MB	282	/* Allocate a virtual IRQ domain to distribute to the regmap domains */
	283	arizona->virq = irq_domain_add_linear(NULL, 2, &arizona_domain_ops,
	284	arizona);
	285	if (!arizona->virq) {
b7dea5dc	286	dev_err(arizona->dev, "Failed to add core IRQ domain\n");
966cdc96 MB	287	ret = -EINVAL;
	288	goto err;
	289	}
	290
	291	ret = regmap_add_irq_chip(arizona->regmap,
	292	irq_create_mapping(arizona->virq, 0),
2a3377ee	293	IRQF_ONESHOT, 0, aod,
966cdc96 MB	294	&arizona->aod_irq_chip);
	295	if (ret != 0) {
	296	dev_err(arizona->dev, "Failed to add AOD IRQs: %d\n", ret);
	297	goto err_domain;
	298	}
	299
	300	ret = regmap_add_irq_chip(arizona->regmap,
	301	irq_create_mapping(arizona->virq, 1),
2a3377ee	302	IRQF_ONESHOT, 0, irq,
966cdc96 MB	303	&arizona->irq_chip);
966cdc96 MB	304	if (ret != 0) {
d1cb4cc9	305	dev_err(arizona->dev, "Failed to add main IRQs: %d\n", ret);
966cdc96 MB	306	goto err_aod;
	307	}
	308
	309	/* Make sure the boot done IRQ is unmasked for resumes */
	310	i = arizona_map_irq(arizona, ARIZONA_IRQ_BOOT_DONE);
	311	ret = request_threaded_irq(i, NULL, arizona_boot_done, IRQF_ONESHOT,
	312	"Boot done", arizona);
	313	if (ret != 0) {
	314	dev_err(arizona->dev, "Failed to request boot done %d: %d\n",
	315	arizona->irq, ret);
	316	goto err_boot_done;
	317	}
	318
	319	/* Handle control interface errors in the core */
30a2af3a	320	if (arizona->ctrlif_error) {
92d80139 MB	321	i = arizona_map_irq(arizona, ARIZONA_IRQ_CTRLIF_ERR);
	322	ret = request_threaded_irq(i, NULL, arizona_ctrlif_err,
	323	IRQF_ONESHOT,
	324	"Control interface error", arizona);
	325	if (ret != 0) {
	326	dev_err(arizona->dev,
	327	"Failed to request CTRLIF_ERR %d: %d\n",
	328	arizona->irq, ret);
	329	goto err_ctrlif;
	330	}
966cdc96 MB	331	}
966cdc96 MB	332
3092f805 MB	333	/* Used to emulate edge trigger and to work around broken pinmux */
	334	if (arizona->pdata.irq_gpio) {
	335	if (gpio_to_irq(arizona->pdata.irq_gpio) != arizona->irq) {
	336	dev_warn(arizona->dev, "IRQ %d is not GPIO %d (%d)\n",
	337	arizona->irq, arizona->pdata.irq_gpio,
	338	gpio_to_irq(arizona->pdata.irq_gpio));
	339	arizona->irq = gpio_to_irq(arizona->pdata.irq_gpio);
	340	}
	341
	342	ret = devm_gpio_request_one(arizona->dev,
	343	arizona->pdata.irq_gpio,
	344	GPIOF_IN, "arizona IRQ");
	345	if (ret != 0) {
	346	dev_err(arizona->dev,
	347	"Failed to request IRQ GPIO %d:: %d\n",
	348	arizona->pdata.irq_gpio, ret);
	349	arizona->pdata.irq_gpio = 0;
	350	}
	351	}
	352
966cdc96 MB	353	ret = request_threaded_irq(arizona->irq, NULL, arizona_irq_thread,
	354	flags, "arizona", arizona);
	355
	356	if (ret != 0) {
7994c664	357	dev_err(arizona->dev, "Failed to request primary IRQ %d: %d\n",
966cdc96 MB	358	arizona->irq, ret);
	359	goto err_main_irq;
	360	}
	361
	362	return 0;
	363
	364	err_main_irq:
30a2af3a CK	365	if (arizona->ctrlif_error)
	366	free_irq(arizona_map_irq(arizona, ARIZONA_IRQ_CTRLIF_ERR),
	367	arizona);
966cdc96 MB	368	err_ctrlif:
	369	free_irq(arizona_map_irq(arizona, ARIZONA_IRQ_BOOT_DONE), arizona);
	370	err_boot_done:
	371	regmap_del_irq_chip(irq_create_mapping(arizona->virq, 1),
	372	arizona->irq_chip);
	373	err_aod:
	374	regmap_del_irq_chip(irq_create_mapping(arizona->virq, 0),
	375	arizona->aod_irq_chip);
	376	err_domain:
	377	err:
	378	return ret;
	379	}
	380
	381	int arizona_irq_exit(struct arizona *arizona)
	382	{
30a2af3a CK	383	if (arizona->ctrlif_error)
	384	free_irq(arizona_map_irq(arizona, ARIZONA_IRQ_CTRLIF_ERR),
	385	arizona);
966cdc96 MB	386	free_irq(arizona_map_irq(arizona, ARIZONA_IRQ_BOOT_DONE), arizona);
	387	regmap_del_irq_chip(irq_create_mapping(arizona->virq, 1),
	388	arizona->irq_chip);
	389	regmap_del_irq_chip(irq_create_mapping(arizona->virq, 0),
	390	arizona->aod_irq_chip);
	391	free_irq(arizona->irq, arizona);
	392
	393	return 0;
	394	}