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Date:	Tue, 29 Apr 2014 08:42:01 +0200
From:	Krzysztof Kozlowski <k.kozlowski@...sung.com>
To:	Robert Baldyga <r.baldyga@...sung.com>
Cc:	sameo@...ux.intel.com, lee.jones@...aro.org, a.zummo@...ertech.it,
	linux-kernel@...r.kernel.org, rtc-linux@...glegroups.com,
	m.szyprowski@...sung.com
Subject: Re: [PATCH v2 2/2] mfd: max77693: handle IRQs using regmap

On wto, 2014-04-29 at 07:48 +0200, Robert Baldyga wrote:
> 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>
> ---
>  drivers/extcon/extcon-max77693.c     |   3 +-
>  drivers/mfd/Kconfig                  |   1 +
>  drivers/mfd/Makefile                 |   2 +-
>  drivers/mfd/max77693-irq.c           | 346 -----------------------------------
>  drivers/mfd/max77693.c               | 151 ++++++++++++++-
>  include/linux/mfd/max77693-private.h |  47 ++++-
>  6 files changed, 191 insertions(+), 359 deletions(-)
>  delete mode 100644 drivers/mfd/max77693-irq.c


Reviewed-by: Krzysztof Kozlowski <k.kozlowski@...sung.com>

Best regards,
Krzysztof



> diff --git a/drivers/extcon/extcon-max77693.c b/drivers/extcon/extcon-max77693.c
> index 0b09bf3..725190a 100644
> --- a/drivers/extcon/extcon-max77693.c
> +++ b/drivers/extcon/extcon-max77693.c
> @@ -1154,7 +1154,8 @@ static int max77693_muic_probe(struct platform_device *pdev)
>  		struct max77693_muic_irq *muic_irq = &muic_irqs[i];
>  		unsigned int virq = 0;
>  
> -		virq = irq_create_mapping(max77693->irq_domain, muic_irq->irq);
> +		virq = regmap_irq_get_virq(max77693->irq_data_muic,
> +					muic_irq->irq);
>  		if (!virq) {
>  			ret = -EINVAL;
>  			goto err_irq;
> diff --git a/drivers/mfd/Kconfig b/drivers/mfd/Kconfig
> index 67141e8..9e479d0 100644
> --- a/drivers/mfd/Kconfig
> +++ b/drivers/mfd/Kconfig
> @@ -372,6 +372,7 @@ config MFD_MAX77693
>  	depends on I2C=y
>  	select MFD_CORE
>  	select REGMAP_I2C
> +	select REGMAP_IRQ
>  	help
>  	  Say yes here to add support for Maxim Semiconductor MAX77693.
>  	  This is a companion Power Management IC with Flash, Haptic, Charger,
> diff --git a/drivers/mfd/Makefile b/drivers/mfd/Makefile
> index 6d0f65e..b0c55e4 100644
> --- a/drivers/mfd/Makefile
> +++ b/drivers/mfd/Makefile
> @@ -114,7 +114,7 @@ obj-$(CONFIG_MFD_DA9063)	+= da9063.o
>  
>  obj-$(CONFIG_MFD_MAX14577)	+= max14577.o
>  obj-$(CONFIG_MFD_MAX77686)	+= max77686.o max77686-irq.o
> -obj-$(CONFIG_MFD_MAX77693)	+= max77693.o max77693-irq.o
> +obj-$(CONFIG_MFD_MAX77693)	+= max77693.o
>  obj-$(CONFIG_MFD_MAX8907)	+= max8907.o
>  max8925-objs			:= max8925-core.o max8925-i2c.o
>  obj-$(CONFIG_MFD_MAX8925)	+= max8925.o
> diff --git a/drivers/mfd/max77693-irq.c b/drivers/mfd/max77693-irq.c
> deleted file mode 100644
> index 7d8f99f..0000000
> --- a/drivers/mfd/max77693-irq.c
> +++ /dev/null
> @@ -1,346 +0,0 @@
> -/*
> - * max77693-irq.c - Interrupt controller support for MAX77693
> - *
> - * Copyright (C) 2012 Samsung Electronics Co.Ltd
> - * SangYoung Son <hello.son@...sung.com>
> - *
> - * This program is not provided / owned by Maxim Integrated Products.
> - *
> - * 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/module.h>
> -#include <linux/irqdomain.h>
> -#include <linux/mfd/max77693.h>
> -#include <linux/mfd/max77693-private.h>
> -#include <linux/regmap.h>
> -
> -static const unsigned int max77693_mask_reg[] = {
> -	[LED_INT] = MAX77693_LED_REG_FLASH_INT_MASK,
> -	[TOPSYS_INT] = MAX77693_PMIC_REG_TOPSYS_INT_MASK,
> -	[CHG_INT] = MAX77693_CHG_REG_CHG_INT_MASK,
> -	[MUIC_INT1] = MAX77693_MUIC_REG_INTMASK1,
> -	[MUIC_INT2] = MAX77693_MUIC_REG_INTMASK2,
> -	[MUIC_INT3] = MAX77693_MUIC_REG_INTMASK3,
> -};
> -
> -static struct regmap *max77693_get_regmap(struct max77693_dev *max77693,
> -				enum max77693_irq_source src)
> -{
> -	switch (src) {
> -	case LED_INT ... CHG_INT:
> -		return max77693->regmap;
> -	case MUIC_INT1 ... MUIC_INT3:
> -		return max77693->regmap_muic;
> -	default:
> -		return ERR_PTR(-EINVAL);
> -	}
> -}
> -
> -struct max77693_irq_data {
> -	int mask;
> -	enum max77693_irq_source group;
> -};
> -
> -#define DECLARE_IRQ(idx, _group, _mask)		\
> -	[(idx)] = { .group = (_group), .mask = (_mask) }
> -static const struct max77693_irq_data max77693_irqs[] = {
> -	DECLARE_IRQ(MAX77693_LED_IRQ_FLED2_OPEN,	LED_INT, 1 << 0),
> -	DECLARE_IRQ(MAX77693_LED_IRQ_FLED2_SHORT,	LED_INT, 1 << 1),
> -	DECLARE_IRQ(MAX77693_LED_IRQ_FLED1_OPEN,	LED_INT, 1 << 2),
> -	DECLARE_IRQ(MAX77693_LED_IRQ_FLED1_SHORT,	LED_INT, 1 << 3),
> -	DECLARE_IRQ(MAX77693_LED_IRQ_MAX_FLASH,		LED_INT, 1 << 4),
> -
> -	DECLARE_IRQ(MAX77693_TOPSYS_IRQ_T120C_INT,	TOPSYS_INT, 1 << 0),
> -	DECLARE_IRQ(MAX77693_TOPSYS_IRQ_T140C_INT,	TOPSYS_INT, 1 << 1),
> -	DECLARE_IRQ(MAX77693_TOPSYS_IRQ_LOWSYS_INT,	TOPSYS_INT, 1 << 3),
> -
> -	DECLARE_IRQ(MAX77693_CHG_IRQ_BYP_I,		CHG_INT, 1 << 0),
> -	DECLARE_IRQ(MAX77693_CHG_IRQ_THM_I,		CHG_INT, 1 << 2),
> -	DECLARE_IRQ(MAX77693_CHG_IRQ_BAT_I,		CHG_INT, 1 << 3),
> -	DECLARE_IRQ(MAX77693_CHG_IRQ_CHG_I,		CHG_INT, 1 << 4),
> -	DECLARE_IRQ(MAX77693_CHG_IRQ_CHGIN_I,		CHG_INT, 1 << 6),
> -
> -	DECLARE_IRQ(MAX77693_MUIC_IRQ_INT1_ADC,		MUIC_INT1, 1 << 0),
> -	DECLARE_IRQ(MAX77693_MUIC_IRQ_INT1_ADC_LOW,	MUIC_INT1, 1 << 1),
> -	DECLARE_IRQ(MAX77693_MUIC_IRQ_INT1_ADC_ERR,	MUIC_INT1, 1 << 2),
> -	DECLARE_IRQ(MAX77693_MUIC_IRQ_INT1_ADC1K,	MUIC_INT1, 1 << 3),
> -
> -	DECLARE_IRQ(MAX77693_MUIC_IRQ_INT2_CHGTYP,	MUIC_INT2, 1 << 0),
> -	DECLARE_IRQ(MAX77693_MUIC_IRQ_INT2_CHGDETREUN,	MUIC_INT2, 1 << 1),
> -	DECLARE_IRQ(MAX77693_MUIC_IRQ_INT2_DCDTMR,	MUIC_INT2, 1 << 2),
> -	DECLARE_IRQ(MAX77693_MUIC_IRQ_INT2_DXOVP,	MUIC_INT2, 1 << 3),
> -	DECLARE_IRQ(MAX77693_MUIC_IRQ_INT2_VBVOLT,	MUIC_INT2, 1 << 4),
> -	DECLARE_IRQ(MAX77693_MUIC_IRQ_INT2_VIDRM,	MUIC_INT2, 1 << 5),
> -
> -	DECLARE_IRQ(MAX77693_MUIC_IRQ_INT3_EOC,		MUIC_INT3, 1 << 0),
> -	DECLARE_IRQ(MAX77693_MUIC_IRQ_INT3_CGMBC,	MUIC_INT3, 1 << 1),
> -	DECLARE_IRQ(MAX77693_MUIC_IRQ_INT3_OVP,		MUIC_INT3, 1 << 2),
> -	DECLARE_IRQ(MAX77693_MUIC_IRQ_INT3_MBCCHG_ERR,	MUIC_INT3, 1 << 3),
> -	DECLARE_IRQ(MAX77693_MUIC_IRQ_INT3_CHG_ENABLED,	MUIC_INT3, 1 << 4),
> -	DECLARE_IRQ(MAX77693_MUIC_IRQ_INT3_BAT_DET,	MUIC_INT3, 1 << 5),
> -};
> -
> -static void max77693_irq_lock(struct irq_data *data)
> -{
> -	struct max77693_dev *max77693 = irq_get_chip_data(data->irq);
> -
> -	mutex_lock(&max77693->irqlock);
> -}
> -
> -static void max77693_irq_sync_unlock(struct irq_data *data)
> -{
> -	struct max77693_dev *max77693 = irq_get_chip_data(data->irq);
> -	int i;
> -
> -	for (i = 0; i < MAX77693_IRQ_GROUP_NR; i++) {
> -		u8 mask_reg = max77693_mask_reg[i];
> -		struct regmap *map = max77693_get_regmap(max77693, i);
> -
> -		if (mask_reg == MAX77693_REG_INVALID ||
> -				IS_ERR_OR_NULL(map))
> -			continue;
> -		max77693->irq_masks_cache[i] = max77693->irq_masks_cur[i];
> -
> -		regmap_write(map, max77693_mask_reg[i],
> -				max77693->irq_masks_cur[i]);
> -	}
> -
> -	mutex_unlock(&max77693->irqlock);
> -}
> -
> -static const inline struct max77693_irq_data *
> -irq_to_max77693_irq(struct max77693_dev *max77693, int irq)
> -{
> -	struct irq_data *data = irq_get_irq_data(irq);
> -	return &max77693_irqs[data->hwirq];
> -}
> -
> -static void max77693_irq_mask(struct irq_data *data)
> -{
> -	struct max77693_dev *max77693 = irq_get_chip_data(data->irq);
> -	const struct max77693_irq_data *irq_data =
> -				irq_to_max77693_irq(max77693, data->irq);
> -
> -	if (irq_data->group >= MAX77693_IRQ_GROUP_NR)
> -		return;
> -
> -	if (irq_data->group >= MUIC_INT1 && irq_data->group <= MUIC_INT3)
> -		max77693->irq_masks_cur[irq_data->group] &= ~irq_data->mask;
> -	else
> -		max77693->irq_masks_cur[irq_data->group] |= irq_data->mask;
> -}
> -
> -static void max77693_irq_unmask(struct irq_data *data)
> -{
> -	struct max77693_dev *max77693 = irq_get_chip_data(data->irq);
> -	const struct max77693_irq_data *irq_data =
> -	    irq_to_max77693_irq(max77693, data->irq);
> -
> -	if (irq_data->group >= MAX77693_IRQ_GROUP_NR)
> -		return;
> -
> -	if (irq_data->group >= MUIC_INT1 && irq_data->group <= MUIC_INT3)
> -		max77693->irq_masks_cur[irq_data->group] |= irq_data->mask;
> -	else
> -		max77693->irq_masks_cur[irq_data->group] &= ~irq_data->mask;
> -}
> -
> -static struct irq_chip max77693_irq_chip = {
> -	.name			= "max77693",
> -	.irq_bus_lock		= max77693_irq_lock,
> -	.irq_bus_sync_unlock	= max77693_irq_sync_unlock,
> -	.irq_mask		= max77693_irq_mask,
> -	.irq_unmask		= max77693_irq_unmask,
> -};
> -
> -#define MAX77693_IRQSRC_CHG		(1 << 0)
> -#define MAX77693_IRQSRC_TOP		(1 << 1)
> -#define MAX77693_IRQSRC_FLASH		(1 << 2)
> -#define MAX77693_IRQSRC_MUIC		(1 << 3)
> -static irqreturn_t max77693_irq_thread(int irq, void *data)
> -{
> -	struct max77693_dev *max77693 = data;
> -	u8 irq_reg[MAX77693_IRQ_GROUP_NR] = {};
> -	unsigned int irq_src;
> -	int ret;
> -	int i, cur_irq;
> -
> -	ret = regmap_read(max77693->regmap, MAX77693_PMIC_REG_INTSRC,
> -				&irq_src);
> -	if (ret < 0) {
> -		dev_err(max77693->dev, "Failed to read interrupt source: %d\n",
> -				ret);
> -		return IRQ_NONE;
> -	}
> -
> -	if (irq_src & MAX77693_IRQSRC_CHG) {
> -		/* CHG_INT */
> -		unsigned int data;
> -		ret = regmap_read(max77693->regmap,
> -				MAX77693_CHG_REG_CHG_INT, &data);
> -		irq_reg[CHG_INT] = data;
> -	}
> -
> -	if (irq_src & MAX77693_IRQSRC_TOP) {
> -		/* TOPSYS_INT */
> -		unsigned int data;
> -		ret = regmap_read(max77693->regmap,
> -			MAX77693_PMIC_REG_TOPSYS_INT, &data);
> -		irq_reg[TOPSYS_INT] = data;
> -	}
> -
> -	if (irq_src & MAX77693_IRQSRC_FLASH) {
> -		/* LED_INT */
> -		unsigned int data;
> -		ret = regmap_read(max77693->regmap,
> -			MAX77693_LED_REG_FLASH_INT, &data);
> -		irq_reg[LED_INT] = data;
> -	}
> -
> -	if (irq_src & MAX77693_IRQSRC_MUIC)
> -		/* MUIC INT1 ~ INT3 */
> -		regmap_bulk_read(max77693->regmap_muic, MAX77693_MUIC_REG_INT1,
> -			&irq_reg[MUIC_INT1], MAX77693_NUM_IRQ_MUIC_REGS);
> -
> -	/* Apply masking */
> -	for (i = 0; i < MAX77693_IRQ_GROUP_NR; i++) {
> -		if (i >= MUIC_INT1 && i <= MUIC_INT3)
> -			irq_reg[i] &= max77693->irq_masks_cur[i];
> -		else
> -			irq_reg[i] &= ~max77693->irq_masks_cur[i];
> -	}
> -
> -	/* Report */
> -	for (i = 0; i < MAX77693_IRQ_NR; i++) {
> -		if (irq_reg[max77693_irqs[i].group] & max77693_irqs[i].mask) {
> -			cur_irq = irq_find_mapping(max77693->irq_domain, i);
> -			if (cur_irq)
> -				handle_nested_irq(cur_irq);
> -		}
> -	}
> -
> -	return IRQ_HANDLED;
> -}
> -
> -int max77693_irq_resume(struct max77693_dev *max77693)
> -{
> -	if (max77693->irq)
> -		max77693_irq_thread(0, max77693);
> -
> -	return 0;
> -}
> -
> -static int max77693_irq_domain_map(struct irq_domain *d, unsigned int irq,
> -				irq_hw_number_t hw)
> -{
> -	struct max77693_dev *max77693 = d->host_data;
> -
> -	irq_set_chip_data(irq, max77693);
> -	irq_set_chip_and_handler(irq, &max77693_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 max77693_irq_domain_ops = {
> -	.map = max77693_irq_domain_map,
> -};
> -
> -int max77693_irq_init(struct max77693_dev *max77693)
> -{
> -	struct irq_domain *domain;
> -	int i;
> -	int ret = 0;
> -	unsigned int intsrc_mask;
> -
> -	mutex_init(&max77693->irqlock);
> -
> -	/* Mask individual interrupt sources */
> -	for (i = 0; i < MAX77693_IRQ_GROUP_NR; i++) {
> -		struct regmap *map;
> -		/* MUIC IRQ  0:MASK 1:NOT MASK */
> -		/* Other IRQ 1:MASK 0:NOT MASK */
> -		if (i >= MUIC_INT1 && i <= MUIC_INT3) {
> -			max77693->irq_masks_cur[i] = 0x00;
> -			max77693->irq_masks_cache[i] = 0x00;
> -		} else {
> -			max77693->irq_masks_cur[i] = 0xff;
> -			max77693->irq_masks_cache[i] = 0xff;
> -		}
> -		map = max77693_get_regmap(max77693, i);
> -
> -		if (IS_ERR_OR_NULL(map))
> -			continue;
> -		if (max77693_mask_reg[i] == MAX77693_REG_INVALID)
> -			continue;
> -		if (i >= MUIC_INT1 && i <= MUIC_INT3)
> -			regmap_write(map, max77693_mask_reg[i], 0x00);
> -		else
> -			regmap_write(map, max77693_mask_reg[i], 0xff);
> -	}
> -
> -	domain = irq_domain_add_linear(NULL, MAX77693_IRQ_NR,
> -					&max77693_irq_domain_ops, max77693);
> -	if (!domain) {
> -		dev_err(max77693->dev, "could not create irq domain\n");
> -		ret = -ENODEV;
> -		goto err_irq;
> -	}
> -	max77693->irq_domain = domain;
> -
> -	/* Unmask max77693 interrupt */
> -	ret = regmap_read(max77693->regmap,
> -			MAX77693_PMIC_REG_INTSRC_MASK, &intsrc_mask);
> -	if (ret < 0) {
> -		dev_err(max77693->dev, "fail to read PMIC register\n");
> -		goto err_irq;
> -	}
> -
> -	intsrc_mask &= ~(MAX77693_IRQSRC_CHG);
> -	intsrc_mask &= ~(MAX77693_IRQSRC_FLASH);
> -	intsrc_mask &= ~(MAX77693_IRQSRC_MUIC);
> -	ret = regmap_write(max77693->regmap,
> -			MAX77693_PMIC_REG_INTSRC_MASK, intsrc_mask);
> -	if (ret < 0) {
> -		dev_err(max77693->dev, "fail to write PMIC register\n");
> -		goto err_irq;
> -	}
> -
> -	ret = request_threaded_irq(max77693->irq, NULL, max77693_irq_thread,
> -				   IRQF_TRIGGER_FALLING | IRQF_ONESHOT,
> -				   "max77693-irq", max77693);
> -	if (ret)
> -		dev_err(max77693->dev, "Failed to request IRQ %d: %d\n",
> -			max77693->irq, ret);
> -
> -err_irq:
> -	return ret;
> -}
> -
> -void max77693_irq_exit(struct max77693_dev *max77693)
> -{
> -	if (max77693->irq)
> -		free_irq(max77693->irq, max77693);
> -}
> diff --git a/drivers/mfd/max77693.c b/drivers/mfd/max77693.c
> index 6336251..5b85dc3 100644
> --- a/drivers/mfd/max77693.c
> +++ b/drivers/mfd/max77693.c
> @@ -55,12 +55,95 @@ static const struct regmap_config max77693_regmap_config = {
>  	.max_register = MAX77693_PMIC_REG_END,
>  };
>  
> +static const struct regmap_irq max77693_led_irqs[] = {
> +	{ .mask = LED_IRQ_FLED2_OPEN, },
> +	{ .mask = LED_IRQ_FLED2_SHORT, },
> +	{ .mask = LED_IRQ_FLED1_OPEN, },
> +	{ .mask = LED_IRQ_FLED1_SHORT, },
> +	{ .mask = LED_IRQ_MAX_FLASH, },
> +};
> +
> +static const struct regmap_irq_chip max77693_led_irq_chip = {
> +	.name                   = "max77693-led",
> +	.status_base            = MAX77693_LED_REG_FLASH_INT,
> +	.mask_base              = MAX77693_LED_REG_FLASH_INT_MASK,
> +	.mask_invert            = false,
> +	.num_regs               = 1,
> +	.irqs                   = max77693_led_irqs,
> +	.num_irqs               = ARRAY_SIZE(max77693_led_irqs),
> +};
> +
> +static const struct regmap_irq max77693_topsys_irqs[] = {
> +	{ .mask = TOPSYS_IRQ_T120C_INT, },
> +	{ .mask = TOPSYS_IRQ_T140C_INT, },
> +	{ .mask = TOPSYS_IRQ_LOWSYS_INT, },
> +};
> +
> +static const struct regmap_irq_chip max77693_topsys_irq_chip = {
> +	.name                   = "max77693-topsys",
> +	.status_base            = MAX77693_PMIC_REG_TOPSYS_INT,
> +	.mask_base              = MAX77693_PMIC_REG_TOPSYS_INT_MASK,
> +	.mask_invert            = false,
> +	.num_regs               = 1,
> +	.irqs                   = max77693_topsys_irqs,
> +	.num_irqs               = ARRAY_SIZE(max77693_topsys_irqs),
> +};
> +
> +static const struct regmap_irq max77693_charger_irqs[] = {
> +	{ .mask = CHG_IRQ_BYP_I, },
> +	{ .mask = CHG_IRQ_THM_I, },
> +	{ .mask = CHG_IRQ_BAT_I, },
> +	{ .mask = CHG_IRQ_CHG_I, },
> +	{ .mask = CHG_IRQ_CHGIN_I, },
> +};
> +
> +static const struct regmap_irq_chip max77693_charger_irq_chip = {
> +	.name                   = "max77693-charger",
> +	.status_base            = MAX77693_CHG_REG_CHG_INT,
> +	.mask_base              = MAX77693_CHG_REG_CHG_INT_MASK,
> +	.mask_invert            = false,
> +	.num_regs               = 1,
> +	.irqs                   = max77693_charger_irqs,
> +	.num_irqs               = ARRAY_SIZE(max77693_charger_irqs),
> +};
> +
>  static const struct regmap_config max77693_regmap_muic_config = {
>  	.reg_bits = 8,
>  	.val_bits = 8,
>  	.max_register = MAX77693_MUIC_REG_END,
>  };
>  
> +static const struct regmap_irq max77693_muic_irqs[] = {
> +	{ .reg_offset = 0, .mask = MUIC_IRQ_INT1_ADC, },
> +	{ .reg_offset = 0, .mask = MUIC_IRQ_INT1_ADC_LOW, },
> +	{ .reg_offset = 0, .mask = MUIC_IRQ_INT1_ADC_ERR, },
> +	{ .reg_offset = 0, .mask = MUIC_IRQ_INT1_ADC1K, },
> +
> +	{ .reg_offset = 1, .mask = MUIC_IRQ_INT2_CHGTYP, },
> +	{ .reg_offset = 1, .mask = MUIC_IRQ_INT2_CHGDETREUN, },
> +	{ .reg_offset = 1, .mask = MUIC_IRQ_INT2_DCDTMR, },
> +	{ .reg_offset = 1, .mask = MUIC_IRQ_INT2_DXOVP, },
> +	{ .reg_offset = 1, .mask = MUIC_IRQ_INT2_VBVOLT, },
> +	{ .reg_offset = 1, .mask = MUIC_IRQ_INT2_VIDRM, },
> +
> +	{ .reg_offset = 2, .mask = MUIC_IRQ_INT3_EOC, },
> +	{ .reg_offset = 2, .mask = MUIC_IRQ_INT3_CGMBC, },
> +	{ .reg_offset = 2, .mask = MUIC_IRQ_INT3_OVP, },
> +	{ .reg_offset = 2, .mask = MUIC_IRQ_INT3_MBCCHG_ERR, },
> +	{ .reg_offset = 2, .mask = MUIC_IRQ_INT3_CHG_ENABLED, },
> +	{ .reg_offset = 2, .mask = MUIC_IRQ_INT3_BAT_DET, },
> +};
> +
> +static const struct regmap_irq_chip max77693_muic_irq_chip = {
> +	.name                   = "max77693-muic",
> +	.status_base            = MAX77693_MUIC_REG_INT1,
> +	.mask_base              = MAX77693_MUIC_REG_INTMASK1,
> +	.mask_invert            = true,
> +	.num_regs               = 3,
> +	.irqs                   = max77693_muic_irqs,
> +	.num_irqs               = ARRAY_SIZE(max77693_muic_irqs),
> +};
> +
>  static int max77693_i2c_probe(struct i2c_client *i2c,
>  			      const struct i2c_device_id *id)
>  {
> @@ -124,9 +207,45 @@ static int max77693_i2c_probe(struct i2c_client *i2c,
>  		goto err_regmap_muic;
>  	}
>  
> -	ret = max77693_irq_init(max77693);
> -	if (ret < 0)
> -		goto err_irq;
> +	ret = regmap_add_irq_chip(max77693->regmap, max77693->irq,
> +				IRQF_ONESHOT | IRQF_SHARED |
> +				IRQF_TRIGGER_FALLING, 0,
> +				&max77693_led_irq_chip,
> +				&max77693->irq_data_led);
> +	if (ret) {
> +		dev_err(max77693->dev, "failed to add irq chip: %d\n", ret);
> +		goto err_regmap_muic;
> +	}
> +
> +	ret = regmap_add_irq_chip(max77693->regmap, max77693->irq,
> +				IRQF_ONESHOT | IRQF_SHARED |
> +				IRQF_TRIGGER_FALLING, 0,
> +				&max77693_topsys_irq_chip,
> +				&max77693->irq_data_topsys);
> +	if (ret) {
> +		dev_err(max77693->dev, "failed to add irq chip: %d\n", ret);
> +		goto err_irq_topsys;
> +	}
> +
> +	ret = regmap_add_irq_chip(max77693->regmap, max77693->irq,
> +				IRQF_ONESHOT | IRQF_SHARED |
> +				IRQF_TRIGGER_FALLING, 0,
> +				&max77693_charger_irq_chip,
> +				&max77693->irq_data_charger);
> +	if (ret) {
> +		dev_err(max77693->dev, "failed to add irq chip: %d\n", ret);
> +		goto err_irq_charger;
> +	}
> +
> +	ret = regmap_add_irq_chip(max77693->regmap, max77693->irq,
> +				IRQF_ONESHOT | IRQF_SHARED |
> +				IRQF_TRIGGER_FALLING, 0,
> +				&max77693_muic_irq_chip,
> +				&max77693->irq_data_muic);
> +	if (ret) {
> +		dev_err(max77693->dev, "failed to add irq chip: %d\n", ret);
> +		goto err_irq_muic;
> +	}
>  
>  	pm_runtime_set_active(max77693->dev);
>  
> @@ -138,8 +257,13 @@ static int max77693_i2c_probe(struct i2c_client *i2c,
>  	return ret;
>  
>  err_mfd:
> -	max77693_irq_exit(max77693);
> -err_irq:
> +	regmap_del_irq_chip(max77693->irq, max77693->irq_data_muic);
> +err_irq_muic:
> +	regmap_del_irq_chip(max77693->irq, max77693->irq_data_charger);
> +err_irq_charger:
> +	regmap_del_irq_chip(max77693->irq, max77693->irq_data_topsys);
> +err_irq_topsys:
> +	regmap_del_irq_chip(max77693->irq, max77693->irq_data_led);
>  err_regmap_muic:
>  	i2c_unregister_device(max77693->haptic);
>  err_i2c_haptic:
> @@ -152,7 +276,12 @@ static int max77693_i2c_remove(struct i2c_client *i2c)
>  	struct max77693_dev *max77693 = i2c_get_clientdata(i2c);
>  
>  	mfd_remove_devices(max77693->dev);
> -	max77693_irq_exit(max77693);
> +
> +	regmap_del_irq_chip(max77693->irq, max77693->irq_data_muic);
> +	regmap_del_irq_chip(max77693->irq, max77693->irq_data_charger);
> +	regmap_del_irq_chip(max77693->irq, max77693->irq_data_topsys);
> +	regmap_del_irq_chip(max77693->irq, max77693->irq_data_led);
> +
>  	i2c_unregister_device(max77693->muic);
>  	i2c_unregister_device(max77693->haptic);
>  
> @@ -171,7 +300,9 @@ static int max77693_suspend(struct device *dev)
>  	struct max77693_dev *max77693 = i2c_get_clientdata(i2c);
>  
>  	if (device_may_wakeup(dev))
> -		irq_set_irq_wake(max77693->irq, 1);
> +		enable_irq_wake(max77693->irq);
> +	disable_irq(max77693->irq);
> +
>  	return 0;
>  }
>  
> @@ -181,8 +312,10 @@ static int max77693_resume(struct device *dev)
>  	struct max77693_dev *max77693 = i2c_get_clientdata(i2c);
>  
>  	if (device_may_wakeup(dev))
> -		irq_set_irq_wake(max77693->irq, 0);
> -	return max77693_irq_resume(max77693);
> +		disable_irq_wake(max77693->irq);
> +	enable_irq(max77693->irq);
> +
> +	return 0;
>  }
>  
>  static const struct dev_pm_ops max77693_pm = {
> diff --git a/include/linux/mfd/max77693-private.h b/include/linux/mfd/max77693-private.h
> index 80ec31d..7257f3b 100644
> --- a/include/linux/mfd/max77693-private.h
> +++ b/include/linux/mfd/max77693-private.h
> @@ -262,6 +262,42 @@ enum max77693_irq_source {
>  	MAX77693_IRQ_GROUP_NR,
>  };
>  
> +#define LED_IRQ_FLED2_OPEN		(0x1 << 0)
> +#define LED_IRQ_FLED2_SHORT		(0x1 << 1)
> +#define LED_IRQ_FLED1_OPEN		(0x1 << 2)
> +#define LED_IRQ_FLED1_SHORT		(0x1 << 3)
> +#define LED_IRQ_MAX_FLASH		(0x1 << 4)
> +
> +#define TOPSYS_IRQ_T120C_INT		(0x1 << 0)
> +#define TOPSYS_IRQ_T140C_INT		(0x1 << 1)
> +#define TOPSYS_IRQ_LOWSYS_INT		(0x1 << 3)
> +
> +#define CHG_IRQ_BYP_I			(0x1 << 0)
> +#define CHG_IRQ_THM_I			(0x1 << 2)
> +#define CHG_IRQ_BAT_I			(0x1 << 3)
> +#define CHG_IRQ_CHG_I			(0x1 << 4)
> +#define CHG_IRQ_CHGIN_I			(0x1 << 6)
> +
> +#define MUIC_IRQ_INT1_ADC		(0x1 << 0)
> +#define MUIC_IRQ_INT1_ADC_LOW		(0x1 << 1)
> +#define MUIC_IRQ_INT1_ADC_ERR		(0x1 << 2)
> +#define MUIC_IRQ_INT1_ADC1K		(0x1 << 3)
> +
> +#define MUIC_IRQ_INT2_CHGTYP		(0x1 << 0)
> +#define MUIC_IRQ_INT2_CHGDETREUN	(0x1 << 1)
> +#define MUIC_IRQ_INT2_DCDTMR		(0x1 << 2)
> +#define MUIC_IRQ_INT2_DXOVP		(0x1 << 3)
> +#define MUIC_IRQ_INT2_VBVOLT		(0x1 << 4)
> +#define MUIC_IRQ_INT2_VIDRM		(0x1 << 5)
> +
> +#define MUIC_IRQ_INT3_EOC		(0x1 << 0)
> +#define MUIC_IRQ_INT3_CGMBC		(0x1 << 1)
> +#define MUIC_IRQ_INT3_OVP		(0x1 << 2)
> +#define MUIC_IRQ_INT3_MBCCHG_ERR	(0x1 << 3)
> +#define MUIC_IRQ_INT3_CHG_ENABLED	(0x1 << 4)
> +#define MUIC_IRQ_INT3_BAT_DET		(0x1 << 5)
> +
> +
>  enum max77693_irq {
>  	/* PMIC - FLASH */
>  	MAX77693_LED_IRQ_FLED2_OPEN,
> @@ -282,6 +318,10 @@ enum max77693_irq {
>  	MAX77693_CHG_IRQ_CHG_I,
>  	MAX77693_CHG_IRQ_CHGIN_I,
>  
> +	MAX77693_IRQ_NR,
> +};
> +
> +enum max77693_irq_muic {
>  	/* MUIC INT1 */
>  	MAX77693_MUIC_IRQ_INT1_ADC,
>  	MAX77693_MUIC_IRQ_INT1_ADC_LOW,
> @@ -304,7 +344,7 @@ enum max77693_irq {
>  	MAX77693_MUIC_IRQ_INT3_CHG_ENABLED,
>  	MAX77693_MUIC_IRQ_INT3_BAT_DET,
>  
> -	MAX77693_IRQ_NR,
> +	MAX77693_MUIC_IRQ_NR,
>  };
>  
>  struct max77693_dev {
> @@ -319,7 +359,10 @@ struct max77693_dev {
>  	struct regmap *regmap_muic;
>  	struct regmap *regmap_haptic;
>  
> -	struct irq_domain *irq_domain;
> +	struct regmap_irq_chip_data *irq_data_led;
> +	struct regmap_irq_chip_data *irq_data_topsys;
> +	struct regmap_irq_chip_data *irq_data_charger;
> +	struct regmap_irq_chip_data *irq_data_muic;
>  
>  	int irq;
>  	int irq_gpio;

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