Message-ID: <20140326080849.GG24823@lee--X1>
Date:	Wed, 26 Mar 2014 08:08:49 +0000
From:	Lee Jones <lee.jones@...aro.org>
To:	Robert Baldyga <r.baldyga@...sung.com>
Cc:	sameo@...ux.intel.com, a.zummo@...ertech.it,
	linux-kernel@...r.kernel.org, rtc-linux@...glegroups.com,
	m.szyprowski@...sung.com, k.kozlowski@...sung.com
Subject: Re: [PATCH v2] mfd: max77686: handle IRQs using regmap

> This patch modifies mfd driver to use regmap for handling interrupts.
> It allows to simplify irq handling process. This modifications needed
> to make small changes in function drivers, which use interrupts.
> 
> Signed-off-by: Robert Baldyga <r.baldyga@...sung.com>
> Reviewed-by: Krzysztof Kozlowski <k.kozlowski@...sung.com>
> ---
> 
> Changelog:
> 
> v2:
> - fix number of registers in RTC irq_chip
> 
> v1: https://lkml.org/lkml/2014/3/26/42
> 
>  drivers/mfd/Kconfig                  |    2 +-
>  drivers/mfd/Makefile                 |    2 +-
>  drivers/mfd/max77686-irq.c           |  319 ----------------------------------
>  drivers/mfd/max77686.c               |   54 +++++-
>  drivers/rtc/rtc-max77686.c           |   43 ++++-
>  include/linux/mfd/max77686-private.h |   32 +++-
>  6 files changed, 119 insertions(+), 333 deletions(-)
>  delete mode 100644 drivers/mfd/max77686-irq.c

If I don't get round to reviewing prior. Please resubmit after the
v3.15 merge window.

> diff --git a/drivers/mfd/Kconfig b/drivers/mfd/Kconfig
> index 9e87504..969e685 100644
> --- a/drivers/mfd/Kconfig
> +++ b/drivers/mfd/Kconfig
> @@ -349,7 +349,7 @@ config MFD_MAX77686
>  	depends on I2C=y
>  	select MFD_CORE
>  	select REGMAP_I2C
> -	select IRQ_DOMAIN
> +	select REGMAP_IRQ
>  	help
>  	  Say yes here to add support for Maxim Semiconductor MAX77686.
>  	  This is a Power Management IC with RTC on chip.
> diff --git a/drivers/mfd/Makefile b/drivers/mfd/Makefile
> index b91f3e31..bcc57d7 100644
> --- a/drivers/mfd/Makefile
> +++ b/drivers/mfd/Makefile
> @@ -115,7 +115,7 @@ da9063-objs			:= da9063-core.o da9063-irq.o da9063-i2c.o
>  obj-$(CONFIG_MFD_DA9063)	+= da9063.o
>  
>  obj-$(CONFIG_MFD_MAX14577)	+= max14577.o
> -obj-$(CONFIG_MFD_MAX77686)	+= max77686.o max77686-irq.o
> +obj-$(CONFIG_MFD_MAX77686)	+= max77686.o
>  obj-$(CONFIG_MFD_MAX77693)	+= max77693.o
>  obj-$(CONFIG_MFD_MAX8907)	+= max8907.o
>  max8925-objs			:= max8925-core.o max8925-i2c.o
> diff --git a/drivers/mfd/max77686-irq.c b/drivers/mfd/max77686-irq.c
> deleted file mode 100644
> index cdc3280..0000000
> --- a/drivers/mfd/max77686-irq.c
> +++ /dev/null
> @@ -1,319 +0,0 @@
> -/*
> - * max77686-irq.c - Interrupt controller support for MAX77686
> - *
> - * Copyright (C) 2012 Samsung Electronics Co.Ltd
> - * Chiwoong Byun <woong.byun@...sung.com>
> - *
> - * This program is free software; you can redistribute it and/or modify
> - * it under the terms of the GNU General Public License as published by
> - * the Free Software Foundation; either version 2 of the License, or
> - * (at your option) any later version.
> - *
> - * This program is distributed in the hope that it will be useful,
> - * but WITHOUT ANY WARRANTY; without even the implied warranty of
> - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
> - * GNU General Public License for more details.
> - *
> - * You should have received a copy of the GNU General Public License
> - * along with this program; if not, write to the Free Software
> - * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
> - *
> - * This driver is based on max8997-irq.c
> - */
> -
> -#include <linux/err.h>
> -#include <linux/irq.h>
> -#include <linux/interrupt.h>
> -#include <linux/gpio.h>
> -#include <linux/mfd/max77686.h>
> -#include <linux/mfd/max77686-private.h>
> -#include <linux/irqdomain.h>
> -#include <linux/regmap.h>
> -
> -enum {
> -	MAX77686_DEBUG_IRQ_INFO = 1 << 0,
> -	MAX77686_DEBUG_IRQ_MASK = 1 << 1,
> -	MAX77686_DEBUG_IRQ_INT = 1 << 2,
> -};
> -
> -static int debug_mask = 0;
> -module_param(debug_mask, int, 0);
> -MODULE_PARM_DESC(debug_mask, "Set debug_mask : 0x0=off 0x1=IRQ_INFO  0x2=IRQ_MASK 0x4=IRQ_INI)");
> -
> -static const u8 max77686_mask_reg[] = {
> -	[PMIC_INT1] = MAX77686_REG_INT1MSK,
> -	[PMIC_INT2] = MAX77686_REG_INT2MSK,
> -	[RTC_INT] = MAX77686_RTC_INTM,
> -};
> -
> -static struct regmap *max77686_get_regmap(struct max77686_dev *max77686,
> -				enum max77686_irq_source src)
> -{
> -	switch (src) {
> -	case PMIC_INT1 ... PMIC_INT2:
> -		return max77686->regmap;
> -	case RTC_INT:
> -		return max77686->rtc_regmap;
> -	default:
> -		return ERR_PTR(-EINVAL);
> -	}
> -}
> -
> -struct max77686_irq_data {
> -	int mask;
> -	enum max77686_irq_source group;
> -};
> -
> -#define DECLARE_IRQ(idx, _group, _mask)		\
> -	[(idx)] = { .group = (_group), .mask = (_mask) }
> -static const struct max77686_irq_data max77686_irqs[] = {
> -	DECLARE_IRQ(MAX77686_PMICIRQ_PWRONF,	PMIC_INT1, 1 << 0),
> -	DECLARE_IRQ(MAX77686_PMICIRQ_PWRONR,	PMIC_INT1, 1 << 1),
> -	DECLARE_IRQ(MAX77686_PMICIRQ_JIGONBF,	PMIC_INT1, 1 << 2),
> -	DECLARE_IRQ(MAX77686_PMICIRQ_JIGONBR,	PMIC_INT1, 1 << 3),
> -	DECLARE_IRQ(MAX77686_PMICIRQ_ACOKBF,	PMIC_INT1, 1 << 4),
> -	DECLARE_IRQ(MAX77686_PMICIRQ_ACOKBR,	PMIC_INT1, 1 << 5),
> -	DECLARE_IRQ(MAX77686_PMICIRQ_ONKEY1S,	PMIC_INT1, 1 << 6),
> -	DECLARE_IRQ(MAX77686_PMICIRQ_MRSTB,		PMIC_INT1, 1 << 7),
> -	DECLARE_IRQ(MAX77686_PMICIRQ_140C,		PMIC_INT2, 1 << 0),
> -	DECLARE_IRQ(MAX77686_PMICIRQ_120C,		PMIC_INT2, 1 << 1),
> -	DECLARE_IRQ(MAX77686_RTCIRQ_RTC60S,		RTC_INT, 1 << 0),
> -	DECLARE_IRQ(MAX77686_RTCIRQ_RTCA1,		RTC_INT, 1 << 1),
> -	DECLARE_IRQ(MAX77686_RTCIRQ_RTCA2,		RTC_INT, 1 << 2),
> -	DECLARE_IRQ(MAX77686_RTCIRQ_SMPL,		RTC_INT, 1 << 3),
> -	DECLARE_IRQ(MAX77686_RTCIRQ_RTC1S,		RTC_INT, 1 << 4),
> -	DECLARE_IRQ(MAX77686_RTCIRQ_WTSR,		RTC_INT, 1 << 5),
> -};
> -
> -static void max77686_irq_lock(struct irq_data *data)
> -{
> -	struct max77686_dev *max77686 = irq_get_chip_data(data->irq);
> -
> -	if (debug_mask & MAX77686_DEBUG_IRQ_MASK)
> -		pr_info("%s\n", __func__);
> -
> -	mutex_lock(&max77686->irqlock);
> -}
> -
> -static void max77686_irq_sync_unlock(struct irq_data *data)
> -{
> -	struct max77686_dev *max77686 = irq_get_chip_data(data->irq);
> -	int i;
> -
> -	for (i = 0; i < MAX77686_IRQ_GROUP_NR; i++) {
> -		u8 mask_reg = max77686_mask_reg[i];
> -		struct regmap *map = max77686_get_regmap(max77686, i);
> -
> -		if (debug_mask & MAX77686_DEBUG_IRQ_MASK)
> -			pr_debug("%s: mask_reg[%d]=0x%x, cur=0x%x\n",
> -			__func__, i, mask_reg, max77686->irq_masks_cur[i]);
> -
> -		if (mask_reg == MAX77686_REG_INVALID ||
> -				IS_ERR_OR_NULL(map))
> -			continue;
> -
> -		max77686->irq_masks_cache[i] = max77686->irq_masks_cur[i];
> -
> -		regmap_write(map, max77686_mask_reg[i],
> -				max77686->irq_masks_cur[i]);
> -	}
> -
> -	mutex_unlock(&max77686->irqlock);
> -}
> -
> -static const inline struct max77686_irq_data *to_max77686_irq(int irq)
> -{
> -	struct irq_data *data = irq_get_irq_data(irq);
> -	return &max77686_irqs[data->hwirq];
> -}
> -
> -static void max77686_irq_mask(struct irq_data *data)
> -{
> -	struct max77686_dev *max77686 = irq_get_chip_data(data->irq);
> -	const struct max77686_irq_data *irq_data = to_max77686_irq(data->irq);
> -
> -	max77686->irq_masks_cur[irq_data->group] |= irq_data->mask;
> -
> -	if (debug_mask & MAX77686_DEBUG_IRQ_MASK)
> -		pr_info("%s: group=%d, cur=0x%x\n",
> -			__func__, irq_data->group,
> -			max77686->irq_masks_cur[irq_data->group]);
> -}
> -
> -static void max77686_irq_unmask(struct irq_data *data)
> -{
> -	struct max77686_dev *max77686 = irq_get_chip_data(data->irq);
> -	const struct max77686_irq_data *irq_data = to_max77686_irq(data->irq);
> -
> -	max77686->irq_masks_cur[irq_data->group] &= ~irq_data->mask;
> -
> -	if (debug_mask & MAX77686_DEBUG_IRQ_MASK)
> -		pr_info("%s: group=%d, cur=0x%x\n",
> -			__func__, irq_data->group,
> -			max77686->irq_masks_cur[irq_data->group]);
> -}
> -
> -static struct irq_chip max77686_irq_chip = {
> -	.name			= "max77686",
> -	.irq_bus_lock		= max77686_irq_lock,
> -	.irq_bus_sync_unlock	= max77686_irq_sync_unlock,
> -	.irq_mask		= max77686_irq_mask,
> -	.irq_unmask		= max77686_irq_unmask,
> -};
> -
> -static irqreturn_t max77686_irq_thread(int irq, void *data)
> -{
> -	struct max77686_dev *max77686 = data;
> -	unsigned int irq_reg[MAX77686_IRQ_GROUP_NR] = {};
> -	unsigned int irq_src;
> -	int ret;
> -	int i, cur_irq;
> -
> -	ret = regmap_read(max77686->regmap,  MAX77686_REG_INTSRC, &irq_src);
> -	if (ret < 0) {
> -		dev_err(max77686->dev, "Failed to read interrupt source: %d\n",
> -				ret);
> -		return IRQ_NONE;
> -	}
> -
> -	if (debug_mask & MAX77686_DEBUG_IRQ_INT)
> -		pr_info("%s: irq_src=0x%x\n", __func__, irq_src);
> -
> -	if (irq_src == MAX77686_IRQSRC_PMIC) {
> -		ret = regmap_bulk_read(max77686->regmap,
> -					 MAX77686_REG_INT1, irq_reg, 2);
> -		if (ret < 0) {
> -			dev_err(max77686->dev, "Failed to read interrupt source: %d\n",
> -					ret);
> -			return IRQ_NONE;
> -		}
> -
> -		if (debug_mask & MAX77686_DEBUG_IRQ_INT)
> -			pr_info("%s: int1=0x%x, int2=0x%x\n", __func__,
> -				 irq_reg[PMIC_INT1], irq_reg[PMIC_INT2]);
> -	}
> -
> -	if (irq_src & MAX77686_IRQSRC_RTC) {
> -		ret = regmap_read(max77686->rtc_regmap,
> -					MAX77686_RTC_INT, &irq_reg[RTC_INT]);
> -		if (ret < 0) {
> -			dev_err(max77686->dev, "Failed to read interrupt source: %d\n",
> -					ret);
> -			return IRQ_NONE;
> -		}
> -
> -		if (debug_mask & MAX77686_DEBUG_IRQ_INT)
> -			pr_info("%s: rtc int=0x%x\n", __func__,
> -							 irq_reg[RTC_INT]);
> -
> -	}
> -
> -	for (i = 0; i < MAX77686_IRQ_GROUP_NR; i++)
> -		irq_reg[i] &= ~max77686->irq_masks_cur[i];
> -
> -	for (i = 0; i < MAX77686_IRQ_NR; i++) {
> -		if (irq_reg[max77686_irqs[i].group] & max77686_irqs[i].mask) {
> -			cur_irq = irq_find_mapping(max77686->irq_domain, i);
> -			if (cur_irq)
> -				handle_nested_irq(cur_irq);
> -		}
> -	}
> -
> -	return IRQ_HANDLED;
> -}
> -
> -static int max77686_irq_domain_map(struct irq_domain *d, unsigned int irq,
> -					irq_hw_number_t hw)
> -{
> -	struct max77686_dev *max77686 = d->host_data;
> -
> -	irq_set_chip_data(irq, max77686);
> -	irq_set_chip_and_handler(irq, &max77686_irq_chip, handle_edge_irq);
> -	irq_set_nested_thread(irq, 1);
> -#ifdef CONFIG_ARM
> -	set_irq_flags(irq, IRQF_VALID);
> -#else
> -	irq_set_noprobe(irq);
> -#endif
> -	return 0;
> -}
> -
> -static struct irq_domain_ops max77686_irq_domain_ops = {
> -	.map = max77686_irq_domain_map,
> -};
> -
> -int max77686_irq_init(struct max77686_dev *max77686)
> -{
> -	struct irq_domain *domain;
> -	int i;
> -	int ret;
> -	int val;
> -	struct regmap *map;
> -
> -	mutex_init(&max77686->irqlock);
> -
> -	if (max77686->irq_gpio && !max77686->irq) {
> -		max77686->irq = gpio_to_irq(max77686->irq_gpio);
> -
> -		if (debug_mask & MAX77686_DEBUG_IRQ_INT) {
> -			ret = gpio_request(max77686->irq_gpio, "pmic_irq");
> -			if (ret < 0) {
> -				dev_err(max77686->dev,
> -					"Failed to request gpio %d with ret:"
> -					"%d\n",	max77686->irq_gpio, ret);
> -				return IRQ_NONE;
> -			}
> -
> -			gpio_direction_input(max77686->irq_gpio);
> -			val = gpio_get_value(max77686->irq_gpio);
> -			gpio_free(max77686->irq_gpio);
> -			pr_info("%s: gpio_irq=%x\n", __func__, val);
> -		}
> -	}
> -
> -	if (!max77686->irq) {
> -		dev_err(max77686->dev, "irq is not specified\n");
> -		return -ENODEV;
> -	}
> -
> -	/* Mask individual interrupt sources */
> -	for (i = 0; i < MAX77686_IRQ_GROUP_NR; i++) {
> -		max77686->irq_masks_cur[i] = 0xff;
> -		max77686->irq_masks_cache[i] = 0xff;
> -		map = max77686_get_regmap(max77686, i);
> -
> -		if (IS_ERR_OR_NULL(map))
> -			continue;
> -		if (max77686_mask_reg[i] == MAX77686_REG_INVALID)
> -			continue;
> -
> -		regmap_write(map, max77686_mask_reg[i], 0xff);
> -	}
> -	domain = irq_domain_add_linear(NULL, MAX77686_IRQ_NR,
> -					&max77686_irq_domain_ops, max77686);
> -	if (!domain) {
> -		dev_err(max77686->dev, "could not create irq domain\n");
> -		return -ENODEV;
> -	}
> -	max77686->irq_domain = domain;
> -
> -	ret = request_threaded_irq(max77686->irq, NULL, max77686_irq_thread,
> -				   IRQF_TRIGGER_FALLING | IRQF_ONESHOT,
> -				   "max77686-irq", max77686);
> -
> -	if (ret)
> -		dev_err(max77686->dev, "Failed to request IRQ %d: %d\n",
> -			max77686->irq, ret);
> -
> -
> -	if (debug_mask & MAX77686_DEBUG_IRQ_INFO)
> -		pr_info("%s-\n", __func__);
> -
> -	return 0;
> -}
> -
> -void max77686_irq_exit(struct max77686_dev *max77686)
> -{
> -	if (max77686->irq)
> -		free_irq(max77686->irq, max77686);
> -}
> diff --git a/drivers/mfd/max77686.c b/drivers/mfd/max77686.c
> index e5fce76..9b4a854 100644
> --- a/drivers/mfd/max77686.c
> +++ b/drivers/mfd/max77686.c
> @@ -32,6 +32,7 @@
>  #include <linux/mfd/max77686-private.h>
>  #include <linux/err.h>
>  #include <linux/of.h>
> +#include <linux/interrupt.h>
>  
>  #define I2C_ADDR_RTC	(0x0C >> 1)
>  
> @@ -46,6 +47,30 @@ static struct regmap_config max77686_regmap_config = {
>  	.val_bits = 8,
>  };
>  
> +static const struct regmap_irq max77686_irqs[] = {
> +	{ .reg_offset = 0, .mask = PMIC_INT1_PWRONF_MASK, },
> +	{ .reg_offset = 0, .mask = PMIC_INT1_PWRONR_MASK, },
> +	{ .reg_offset = 0, .mask = PMIC_INT1_JIGONBF_MASK, },
> +	{ .reg_offset = 0, .mask = PMIC_INT1_JIGONBR_MASK, },
> +	{ .reg_offset = 0, .mask = PMIC_INT1_ACOKBF_MASK, },
> +	{ .reg_offset = 0, .mask = PMIC_INT1_ACOKBR_MASK, },
> +	{ .reg_offset = 0, .mask = PMIC_INT1_ONKEY1S_MASK, },
> +	{ .reg_offset = 0, .mask = PMIC_INT1_MRSTB_MASK, },
> +
> +	{ .reg_offset = 1, .mask = PMIC_INT2_140C_MASK, },
> +	{ .reg_offset = 1, .mask = PMIC_INT2_120C_MASK, },
> +};
> +
> +static const struct regmap_irq_chip max77686_irq_chip = {
> +	.name                   = "max77686",
> +	.status_base            = MAX77686_REG_INT1,
> +	.mask_base              = MAX77686_REG_INT1MSK,
> +	.mask_invert            = true,
> +	.num_regs               = 2,
> +	.irqs                   = max77686_irqs,
> +	.num_irqs               = ARRAY_SIZE(max77686_irqs),
> +};
> +
>  #ifdef CONFIG_OF
>  static struct of_device_id max77686_pmic_dt_match[] = {
>  	{.compatible = "maxim,max77686", .data = NULL},
> @@ -112,31 +137,46 @@ static int max77686_i2c_probe(struct i2c_client *i2c,
>  		return ret;
>  	}
>  
> +	ret = regmap_add_irq_chip(max77686->regmap, max77686->irq,
> +			IRQF_ONESHOT | IRQF_SHARED |
> +			IRQF_TRIGGER_FALLING, 0,
> +			&max77686_irq_chip, &max77686->irq_data);
> +	if (ret) {
> +		dev_err(max77686->dev, "failed to add irq chip: %d\n", ret);
> +		return ret;
> +	}
> +
>  	if (regmap_read(max77686->regmap,
>  			 MAX77686_REG_DEVICE_ID, &data) < 0) {
>  		dev_err(max77686->dev,
>  			"device not found on this channel (this is not an error)\n");
> -		return -ENODEV;
> +		ret = -ENODEV;
> +		goto err_irq;
>  	} else
>  		dev_info(max77686->dev, "device found\n");
>  
>  	max77686->rtc = i2c_new_dummy(i2c->adapter, I2C_ADDR_RTC);
>  	if (!max77686->rtc) {
>  		dev_err(max77686->dev, "Failed to allocate I2C device for RTC\n");
> -		return -ENODEV;
> +		ret = -ENODEV;
> +		goto err_irq;
>  	}
>  	i2c_set_clientdata(max77686->rtc, max77686);
>  
> -	max77686_irq_init(max77686);
> -
>  	ret = mfd_add_devices(max77686->dev, -1, max77686_devs,
>  			      ARRAY_SIZE(max77686_devs), NULL, 0, NULL);
>  	if (ret < 0) {
> -		mfd_remove_devices(max77686->dev);
> -		i2c_unregister_device(max77686->rtc);
> +		goto err_mfd;
>  	}
>  
>  	return ret;
> +
> +err_mfd:
> +	mfd_remove_devices(max77686->dev);
> +	i2c_unregister_device(max77686->rtc);
> +err_irq:
> +	regmap_del_irq_chip(max77686->irq, max77686->irq_data);
> +	return ret;
>  }
>  
>  static int max77686_i2c_remove(struct i2c_client *i2c)
> @@ -146,6 +186,8 @@ static int max77686_i2c_remove(struct i2c_client *i2c)
>  	mfd_remove_devices(max77686->dev);
>  	i2c_unregister_device(max77686->rtc);
>  
> +	regmap_del_irq_chip(max77686->irq, max77686->irq_data);
> +
>  	return 0;
>  }
>  
> diff --git a/drivers/rtc/rtc-max77686.c b/drivers/rtc/rtc-max77686.c
> index 9efe118..5196173 100644
> --- a/drivers/rtc/rtc-max77686.c
> +++ b/drivers/rtc/rtc-max77686.c
> @@ -497,6 +497,25 @@ static struct regmap_config max77686_rtc_regmap_config = {
>  	.val_bits = 8,
>  };
>  
> +static const struct regmap_irq max77686_irqs_rtc[] = {
> +	{ .mask = RTC_INT_RTC60S_MASK, },
> +	{ .mask = RTC_INT_RTCA1_MASK, },
> +	{ .mask = RTC_INT_RTCA2_MASK, },
> +	{ .mask = RTC_INT_SMPL_MASK, },
> +	{ .mask = RTC_INT_RTC1S_MASK, },
> +	{ .mask = RTC_INT_WTSR_MASK, },
> +};
> +
> +static const struct regmap_irq_chip max77686_irq_chip_rtc = {
> +	.name                   = "max77686-rtc",
> +	.status_base            = MAX77686_RTC_INT,
> +	.mask_base              = MAX77686_RTC_INTM,
> +	.mask_invert            = true,
> +	.num_regs               = 1,
> +	.irqs                   = max77686_irqs_rtc,
> +	.num_irqs               = ARRAY_SIZE(max77686_irqs_rtc),
> +};
> +
>  static int max77686_rtc_probe(struct platform_device *pdev)
>  {
>  	struct max77686_dev *max77686 = dev_get_drvdata(pdev->dev.parent);
> @@ -522,6 +541,16 @@ static int max77686_rtc_probe(struct platform_device *pdev)
>  				ret);
>  		return ret;
>  	}
> +
> +	ret = regmap_add_irq_chip(max77686->rtc_regmap, max77686->irq,
> +			IRQF_ONESHOT | IRQF_SHARED |
> +			IRQF_TRIGGER_FALLING, 0,
> +			&max77686_irq_chip_rtc, &max77686->irq_data_rtc);
> +	if (ret) {
> +		dev_err(&pdev->dev, "failed to add irq chip: %d\n", ret);
> +		return ret;
> +	}
> +
>  	platform_set_drvdata(pdev, info);
>  
>  	ret = max77686_rtc_init_reg(info);
> @@ -550,7 +579,8 @@ static int max77686_rtc_probe(struct platform_device *pdev)
>  			ret = -EINVAL;
>  		goto err_rtc;
>  	}
> -	virq = irq_create_mapping(max77686->irq_domain, MAX77686_RTCIRQ_RTCA1);
> +	virq = regmap_irq_get_virq(max77686->irq_data_rtc,
> +				   MAX77686_RTCIRQ_RTCA1);
>  	if (!virq) {
>  		ret = -ENXIO;
>  		goto err_rtc;
> @@ -564,9 +594,19 @@ static int max77686_rtc_probe(struct platform_device *pdev)
>  			info->virq, ret);
>  
>  err_rtc:
> +	regmap_del_irq_chip(max77686->irq, max77686->irq_data_rtc);
>  	return ret;
>  }
>  
> +static int max77686_rtc_remove(struct platform_device *pdev)
> +{
> +	struct max77686_dev *max77686 = dev_get_drvdata(pdev->dev.parent);
> +
> +	regmap_del_irq_chip(max77686->irq, max77686->irq_data_rtc);
> +
> +	return 0;
> +}
> +
>  static void max77686_rtc_shutdown(struct platform_device *pdev)
>  {
>  #ifdef MAX77686_RTC_WTSR_SMPL
> @@ -605,6 +645,7 @@ static struct platform_driver max77686_rtc_driver = {
>  		.owner	= THIS_MODULE,
>  	},
>  	.probe		= max77686_rtc_probe,
> +	.remove		= max77686_rtc_remove,
>  	.shutdown	= max77686_rtc_shutdown,
>  	.id_table	= rtc_id,
>  };
> diff --git a/include/linux/mfd/max77686-private.h b/include/linux/mfd/max77686-private.h
> index 8c75a9c..efc0762 100644
> --- a/include/linux/mfd/max77686-private.h
> +++ b/include/linux/mfd/max77686-private.h
> @@ -192,6 +192,25 @@ enum max77686_irq_source {
>  	MAX77686_IRQ_GROUP_NR,
>  };
>  
> +#define PMIC_INT1_PWRONF_MASK		(0x1 << 0)
> +#define PMIC_INT1_PWRONR_MASK		(0x1 << 1)
> +#define PMIC_INT1_JIGONBF_MASK		(0x1 << 2)
> +#define PMIC_INT1_JIGONBR_MASK		(0x1 << 3)
> +#define PMIC_INT1_ACOKBF_MASK		(0x1 << 4)
> +#define PMIC_INT1_ACOKBR_MASK		(0x1 << 5)
> +#define PMIC_INT1_ONKEY1S_MASK		(0x1 << 6)
> +#define PMIC_INT1_MRSTB_MASK		(0x1 << 7)
> +
> +#define PMIC_INT2_140C_MASK		(0x1 << 0)
> +#define PMIC_INT2_120C_MASK		(0x1 << 1)
> +
> +#define RTC_INT_RTC60S_MASK		(0x1 << 0)
> +#define RTC_INT_RTCA1_MASK		(0x1 << 1)
> +#define RTC_INT_RTCA2_MASK		(0x1 << 2)
> +#define RTC_INT_SMPL_MASK		(0x1 << 3)
> +#define RTC_INT_RTC1S_MASK		(0x1 << 4)
> +#define RTC_INT_WTSR_MASK		(0x1 << 5)
> +
>  enum max77686_irq {
>  	MAX77686_PMICIRQ_PWRONF,
>  	MAX77686_PMICIRQ_PWRONR,
> @@ -205,6 +224,10 @@ enum max77686_irq {
>  	MAX77686_PMICIRQ_140C,
>  	MAX77686_PMICIRQ_120C,
>  
> +	MAX77686_PMICIRQ_NR,
> +};
> +
> +enum max77686_irq_rtc {
>  	MAX77686_RTCIRQ_RTC60S,
>  	MAX77686_RTCIRQ_RTCA1,
>  	MAX77686_RTCIRQ_RTCA2,
> @@ -212,7 +235,7 @@ enum max77686_irq {
>  	MAX77686_RTCIRQ_RTC1S,
>  	MAX77686_RTCIRQ_WTSR,
>  
> -	MAX77686_IRQ_NR,
> +	MAX77686_RTCIRQ_NR,
>  };
>  
>  struct max77686_dev {
> @@ -225,6 +248,9 @@ struct max77686_dev {
>  	struct regmap *regmap;		/* regmap for mfd */
>  	struct regmap *rtc_regmap;	/* regmap for rtc */
>  
> +	struct regmap_irq_chip_data *irq_data;
> +	struct regmap_irq_chip_data *irq_data_rtc;
> +
>  	struct irq_domain *irq_domain;
>  
>  	int irq;
> @@ -239,8 +265,4 @@ enum max77686_types {
>  	TYPE_MAX77686,
>  };
>  
> -extern int max77686_irq_init(struct max77686_dev *max77686);
> -extern void max77686_irq_exit(struct max77686_dev *max77686);
> -extern int max77686_irq_resume(struct max77686_dev *max77686);
> -
>  #endif /*  __LINUX_MFD_MAX77686_PRIV_H */

-- 
Lee Jones
Linaro STMicroelectronics Landing Team Lead
Linaro.org │ Open source software for ARM SoCs
Follow Linaro: Facebook | Twitter | Blog
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