[linux-2.6-block.git] / drivers / mfd / tps6586x.c

// SPDX-License-Identifier: GPL-2.0-only
/*
 * Core driver for TI TPS6586x PMIC family
 *
 * Copyright (c) 2010 CompuLab Ltd.
 * Mike Rapoport <mike@compulab.co.il>
 *
 * Based on da903x.c.
 * Copyright (C) 2008 Compulab, Ltd.
 * Mike Rapoport <mike@compulab.co.il>
 * Copyright (C) 2006-2008 Marvell International Ltd.
 * Eric Miao <eric.miao@marvell.com>
 */

#include <linux/interrupt.h>
#include <linux/irq.h>
#include <linux/irqdomain.h>
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/mutex.h>
#include <linux/slab.h>
#include <linux/err.h>
#include <linux/i2c.h>
#include <linux/platform_device.h>
#include <linux/regmap.h>
#include <linux/of.h>

#include <linux/mfd/core.h>
#include <linux/mfd/tps6586x.h>

#define TPS6586X_SUPPLYENE	0x14
#define EXITSLREQ_BIT		BIT(1)
#define SLEEP_MODE_BIT		BIT(3)

/* interrupt control registers */
#define TPS6586X_INT_ACK1	0xb5
#define TPS6586X_INT_ACK2	0xb6
#define TPS6586X_INT_ACK3	0xb7
#define TPS6586X_INT_ACK4	0xb8

/* interrupt mask registers */
#define TPS6586X_INT_MASK1	0xb0
#define TPS6586X_INT_MASK2	0xb1
#define TPS6586X_INT_MASK3	0xb2
#define TPS6586X_INT_MASK4	0xb3
#define TPS6586X_INT_MASK5	0xb4

/* device id */
#define TPS6586X_VERSIONCRC	0xcd

/* Maximum register */
#define TPS6586X_MAX_REGISTER	TPS6586X_VERSIONCRC

struct tps6586x_irq_data {
	u8	mask_reg;
	u8	mask_mask;
};

#define TPS6586X_IRQ(_reg, _mask)				\
	{							\
		.mask_reg = (_reg) - TPS6586X_INT_MASK1,	\
		.mask_mask = (_mask),				\
	}

static const struct tps6586x_irq_data tps6586x_irqs[] = {
	[TPS6586X_INT_PLDO_0]	= TPS6586X_IRQ(TPS6586X_INT_MASK1, 1 << 0),
	[TPS6586X_INT_PLDO_1]	= TPS6586X_IRQ(TPS6586X_INT_MASK1, 1 << 1),
	[TPS6586X_INT_PLDO_2]	= TPS6586X_IRQ(TPS6586X_INT_MASK1, 1 << 2),
	[TPS6586X_INT_PLDO_3]	= TPS6586X_IRQ(TPS6586X_INT_MASK1, 1 << 3),
	[TPS6586X_INT_PLDO_4]	= TPS6586X_IRQ(TPS6586X_INT_MASK1, 1 << 4),
	[TPS6586X_INT_PLDO_5]	= TPS6586X_IRQ(TPS6586X_INT_MASK1, 1 << 5),
	[TPS6586X_INT_PLDO_6]	= TPS6586X_IRQ(TPS6586X_INT_MASK1, 1 << 6),
	[TPS6586X_INT_PLDO_7]	= TPS6586X_IRQ(TPS6586X_INT_MASK1, 1 << 7),
	[TPS6586X_INT_COMP_DET]	= TPS6586X_IRQ(TPS6586X_INT_MASK4, 1 << 0),
	[TPS6586X_INT_ADC]	= TPS6586X_IRQ(TPS6586X_INT_MASK2, 1 << 1),
	[TPS6586X_INT_PLDO_8]	= TPS6586X_IRQ(TPS6586X_INT_MASK2, 1 << 2),
	[TPS6586X_INT_PLDO_9]	= TPS6586X_IRQ(TPS6586X_INT_MASK2, 1 << 3),
	[TPS6586X_INT_PSM_0]	= TPS6586X_IRQ(TPS6586X_INT_MASK2, 1 << 4),
	[TPS6586X_INT_PSM_1]	= TPS6586X_IRQ(TPS6586X_INT_MASK2, 1 << 5),
	[TPS6586X_INT_PSM_2]	= TPS6586X_IRQ(TPS6586X_INT_MASK2, 1 << 6),
	[TPS6586X_INT_PSM_3]	= TPS6586X_IRQ(TPS6586X_INT_MASK2, 1 << 7),
	[TPS6586X_INT_RTC_ALM1]	= TPS6586X_IRQ(TPS6586X_INT_MASK5, 1 << 4),
	[TPS6586X_INT_ACUSB_OVP] = TPS6586X_IRQ(TPS6586X_INT_MASK5, 0x03),
	[TPS6586X_INT_USB_DET]	= TPS6586X_IRQ(TPS6586X_INT_MASK5, 1 << 2),
	[TPS6586X_INT_AC_DET]	= TPS6586X_IRQ(TPS6586X_INT_MASK5, 1 << 3),
	[TPS6586X_INT_BAT_DET]	= TPS6586X_IRQ(TPS6586X_INT_MASK3, 1 << 0),
	[TPS6586X_INT_CHG_STAT]	= TPS6586X_IRQ(TPS6586X_INT_MASK4, 0xfc),
	[TPS6586X_INT_CHG_TEMP]	= TPS6586X_IRQ(TPS6586X_INT_MASK3, 0x06),
	[TPS6586X_INT_PP]	= TPS6586X_IRQ(TPS6586X_INT_MASK3, 0xf0),
	[TPS6586X_INT_RESUME]	= TPS6586X_IRQ(TPS6586X_INT_MASK5, 1 << 5),
	[TPS6586X_INT_LOW_SYS]	= TPS6586X_IRQ(TPS6586X_INT_MASK5, 1 << 6),
	[TPS6586X_INT_RTC_ALM2] = TPS6586X_IRQ(TPS6586X_INT_MASK4, 1 << 1),
};

static struct resource tps6586x_rtc_resources[] = {
	{
		.start  = TPS6586X_INT_RTC_ALM1,
		.end	= TPS6586X_INT_RTC_ALM1,
		.flags	= IORESOURCE_IRQ,
	},
};

static const struct mfd_cell tps6586x_cell[] = {
	{
		.name = "tps6586x-gpio",
	},
	{
		.name = "tps6586x-regulator",
	},
	{
		.name = "tps6586x-rtc",
		.num_resources = ARRAY_SIZE(tps6586x_rtc_resources),
		.resources = &tps6586x_rtc_resources[0],
	},
	{
		.name = "tps6586x-onkey",
	},
};

struct tps6586x {
	struct device		*dev;
	struct i2c_client	*client;
	struct regmap		*regmap;
	int			version;

	int			irq;
	struct irq_chip		irq_chip;
	struct mutex		irq_lock;
	int			irq_base;
	u32			irq_en;
	u8			mask_reg[5];
	struct irq_domain	*irq_domain;
};

static inline struct tps6586x *dev_to_tps6586x(struct device *dev)
{
	return i2c_get_clientdata(to_i2c_client(dev));
}

int tps6586x_write(struct device *dev, int reg, uint8_t val)
{
	struct tps6586x *tps6586x = dev_to_tps6586x(dev);

	return regmap_write(tps6586x->regmap, reg, val);
}
EXPORT_SYMBOL_GPL(tps6586x_write);

int tps6586x_writes(struct device *dev, int reg, int len, uint8_t *val)
{
	struct tps6586x *tps6586x = dev_to_tps6586x(dev);

	return regmap_bulk_write(tps6586x->regmap, reg, val, len);
}
EXPORT_SYMBOL_GPL(tps6586x_writes);

int tps6586x_read(struct device *dev, int reg, uint8_t *val)
{
	struct tps6586x *tps6586x = dev_to_tps6586x(dev);
	unsigned int rval;
	int ret;

	ret = regmap_read(tps6586x->regmap, reg, &rval);
	if (!ret)
		*val = rval;
	return ret;
}
EXPORT_SYMBOL_GPL(tps6586x_read);

int tps6586x_reads(struct device *dev, int reg, int len, uint8_t *val)
{
	struct tps6586x *tps6586x = dev_to_tps6586x(dev);

	return regmap_bulk_read(tps6586x->regmap, reg, val, len);
}
EXPORT_SYMBOL_GPL(tps6586x_reads);

int tps6586x_set_bits(struct device *dev, int reg, uint8_t bit_mask)
{
	struct tps6586x *tps6586x = dev_to_tps6586x(dev);

	return regmap_update_bits(tps6586x->regmap, reg, bit_mask, bit_mask);
}
EXPORT_SYMBOL_GPL(tps6586x_set_bits);

int tps6586x_clr_bits(struct device *dev, int reg, uint8_t bit_mask)
{
	struct tps6586x *tps6586x = dev_to_tps6586x(dev);

	return regmap_update_bits(tps6586x->regmap, reg, bit_mask, 0);
}
EXPORT_SYMBOL_GPL(tps6586x_clr_bits);

int tps6586x_update(struct device *dev, int reg, uint8_t val, uint8_t mask)
{
	struct tps6586x *tps6586x = dev_to_tps6586x(dev);

	return regmap_update_bits(tps6586x->regmap, reg, mask, val);
}
EXPORT_SYMBOL_GPL(tps6586x_update);

int tps6586x_irq_get_virq(struct device *dev, int irq)
{
	struct tps6586x *tps6586x = dev_to_tps6586x(dev);

	return irq_create_mapping(tps6586x->irq_domain, irq);
}
EXPORT_SYMBOL_GPL(tps6586x_irq_get_virq);

int tps6586x_get_version(struct device *dev)
{
	struct tps6586x *tps6586x = dev_get_drvdata(dev);

	return tps6586x->version;
}
EXPORT_SYMBOL_GPL(tps6586x_get_version);

static int __remove_subdev(struct device *dev, void *unused)
{
	platform_device_unregister(to_platform_device(dev));
	return 0;
}

static int tps6586x_remove_subdevs(struct tps6586x *tps6586x)
{
	return device_for_each_child(tps6586x->dev, NULL, __remove_subdev);
}

static void tps6586x_irq_lock(struct irq_data *data)
{
	struct tps6586x *tps6586x = irq_data_get_irq_chip_data(data);

	mutex_lock(&tps6586x->irq_lock);
}

static void tps6586x_irq_enable(struct irq_data *irq_data)
{
	struct tps6586x *tps6586x = irq_data_get_irq_chip_data(irq_data);
	unsigned int __irq = irq_data->hwirq;
	const struct tps6586x_irq_data *data = &tps6586x_irqs[__irq];

	tps6586x->mask_reg[data->mask_reg] &= ~data->mask_mask;
	tps6586x->irq_en |= (1 << __irq);
}

static void tps6586x_irq_disable(struct irq_data *irq_data)
{
	struct tps6586x *tps6586x = irq_data_get_irq_chip_data(irq_data);

	unsigned int __irq = irq_data->hwirq;
	const struct tps6586x_irq_data *data = &tps6586x_irqs[__irq];

	tps6586x->mask_reg[data->mask_reg] |= data->mask_mask;
	tps6586x->irq_en &= ~(1 << __irq);
}

static void tps6586x_irq_sync_unlock(struct irq_data *data)
{
	struct tps6586x *tps6586x = irq_data_get_irq_chip_data(data);
	int i;

	for (i = 0; i < ARRAY_SIZE(tps6586x->mask_reg); i++) {
		int ret;
		ret = tps6586x_write(tps6586x->dev,
					    TPS6586X_INT_MASK1 + i,
					    tps6586x->mask_reg[i]);
		WARN_ON(ret);
	}

	mutex_unlock(&tps6586x->irq_lock);
}

#ifdef CONFIG_PM_SLEEP
static int tps6586x_irq_set_wake(struct irq_data *irq_data, unsigned int on)
{
	struct tps6586x *tps6586x = irq_data_get_irq_chip_data(irq_data);
	return irq_set_irq_wake(tps6586x->irq, on);
}
#else
#define tps6586x_irq_set_wake NULL
#endif

static struct irq_chip tps6586x_irq_chip = {
	.name = "tps6586x",
	.irq_bus_lock = tps6586x_irq_lock,
	.irq_bus_sync_unlock = tps6586x_irq_sync_unlock,
	.irq_disable = tps6586x_irq_disable,
	.irq_enable = tps6586x_irq_enable,
	.irq_set_wake = tps6586x_irq_set_wake,
};

static int tps6586x_irq_map(struct irq_domain *h, unsigned int virq,
				irq_hw_number_t hw)
{
	struct tps6586x *tps6586x = h->host_data;

	irq_set_chip_data(virq, tps6586x);
	irq_set_chip_and_handler(virq, &tps6586x_irq_chip, handle_simple_irq);
	irq_set_nested_thread(virq, 1);
	irq_set_noprobe(virq);

	return 0;
}

static const struct irq_domain_ops tps6586x_domain_ops = {
	.map    = tps6586x_irq_map,
	.xlate  = irq_domain_xlate_twocell,
};

static irqreturn_t tps6586x_irq(int irq, void *data)
{
	struct tps6586x *tps6586x = data;
	u32 acks;
	int ret = 0;

	ret = tps6586x_reads(tps6586x->dev, TPS6586X_INT_ACK1,
			     sizeof(acks), (uint8_t *)&acks);

	if (ret < 0) {
		dev_err(tps6586x->dev, "failed to read interrupt status\n");
		return IRQ_NONE;
	}

	acks = le32_to_cpu(acks);

	while (acks) {
		int i = __ffs(acks);

		if (tps6586x->irq_en & (1 << i))
			handle_nested_irq(
				irq_find_mapping(tps6586x->irq_domain, i));

		acks &= ~(1 << i);
	}

	return IRQ_HANDLED;
}

static int tps6586x_irq_init(struct tps6586x *tps6586x, int irq,
				       int irq_base)
{
	int i, ret;
	u8 tmp[4];
	int new_irq_base;
	int irq_num = ARRAY_SIZE(tps6586x_irqs);

	tps6586x->irq = irq;

	mutex_init(&tps6586x->irq_lock);
	for (i = 0; i < 5; i++) {
		tps6586x->mask_reg[i] = 0xff;
		tps6586x_write(tps6586x->dev, TPS6586X_INT_MASK1 + i, 0xff);
	}

	tps6586x_reads(tps6586x->dev, TPS6586X_INT_ACK1, sizeof(tmp), tmp);

	if  (irq_base > 0) {
		new_irq_base = irq_alloc_descs(irq_base, 0, irq_num, -1);
		if (new_irq_base < 0) {
			dev_err(tps6586x->dev,
				"Failed to alloc IRQs: %d\n", new_irq_base);
			return new_irq_base;
		}
	} else {
		new_irq_base = 0;
	}

	tps6586x->irq_domain = irq_domain_add_simple(tps6586x->dev->of_node,
				irq_num, new_irq_base, &tps6586x_domain_ops,
				tps6586x);
	if (!tps6586x->irq_domain) {
		dev_err(tps6586x->dev, "Failed to create IRQ domain\n");
		return -ENOMEM;
	}
	ret = request_threaded_irq(irq, NULL, tps6586x_irq, IRQF_ONESHOT,
				   "tps6586x", tps6586x);

	if (!ret)
		device_init_wakeup(tps6586x->dev, 1);

	return ret;
}

static int tps6586x_add_subdevs(struct tps6586x *tps6586x,
					  struct tps6586x_platform_data *pdata)
{
	struct tps6586x_subdev_info *subdev;
	struct platform_device *pdev;
	int i, ret = 0;

	for (i = 0; i < pdata->num_subdevs; i++) {
		subdev = &pdata->subdevs[i];

		pdev = platform_device_alloc(subdev->name, subdev->id);
		if (!pdev) {
			ret = -ENOMEM;
			goto failed;
		}

		pdev->dev.parent = tps6586x->dev;
		pdev->dev.platform_data = subdev->platform_data;
		pdev->dev.of_node = subdev->of_node;

		ret = platform_device_add(pdev);
		if (ret) {
			platform_device_put(pdev);
			goto failed;
		}
	}
	return 0;

failed:
	tps6586x_remove_subdevs(tps6586x);
	return ret;
}

#ifdef CONFIG_OF
static struct tps6586x_platform_data *tps6586x_parse_dt(struct i2c_client *client)
{
	struct device_node *np = client->dev.of_node;
	struct tps6586x_platform_data *pdata;

	pdata = devm_kzalloc(&client->dev, sizeof(*pdata), GFP_KERNEL);
	if (!pdata)
		return NULL;

	pdata->num_subdevs = 0;
	pdata->subdevs = NULL;
	pdata->gpio_base = -1;
	pdata->irq_base = -1;
	pdata->pm_off = of_property_read_bool(np, "ti,system-power-controller");

	return pdata;
}

static const struct of_device_id tps6586x_of_match[] = {
	{ .compatible = "ti,tps6586x", },
	{ },
};
#else
static struct tps6586x_platform_data *tps6586x_parse_dt(struct i2c_client *client)
{
	return NULL;
}
#endif

static bool is_volatile_reg(struct device *dev, unsigned int reg)
{
	/* Cache all interrupt mask register */
	if ((reg >= TPS6586X_INT_MASK1) && (reg <= TPS6586X_INT_MASK5))
		return false;

	return true;
}

static const struct regmap_config tps6586x_regmap_config = {
	.reg_bits = 8,
	.val_bits = 8,
	.max_register = TPS6586X_MAX_REGISTER,
	.volatile_reg = is_volatile_reg,
	.cache_type = REGCACHE_RBTREE,
};

static struct device *tps6586x_dev;
static void tps6586x_power_off(void)
{
	if (tps6586x_clr_bits(tps6586x_dev, TPS6586X_SUPPLYENE, EXITSLREQ_BIT))
		return;

	tps6586x_set_bits(tps6586x_dev, TPS6586X_SUPPLYENE, SLEEP_MODE_BIT);
}

static void tps6586x_print_version(struct i2c_client *client, int version)
{
	const char *name;

	switch (version) {
	case TPS658621A:
		name = "TPS658621A";
		break;
	case TPS658621CD:
		name = "TPS658621C/D";
		break;
	case TPS658623:
		name = "TPS658623";
		break;
	case TPS658640:
	case TPS658640v2:
		name = "TPS658640";
		break;
	case TPS658643:
		name = "TPS658643";
		break;
	default:
		name = "TPS6586X";
		break;
	}

	dev_info(&client->dev, "Found %s, VERSIONCRC is %02x\n", name, version);
}

static int tps6586x_i2c_probe(struct i2c_client *client,
					const struct i2c_device_id *id)
{
	struct tps6586x_platform_data *pdata = dev_get_platdata(&client->dev);
	struct tps6586x *tps6586x;
	int ret;
	int version;

	if (!pdata && client->dev.of_node)
		pdata = tps6586x_parse_dt(client);

	if (!pdata) {
		dev_err(&client->dev, "tps6586x requires platform data\n");
		return -ENOTSUPP;
	}

	version = i2c_smbus_read_byte_data(client, TPS6586X_VERSIONCRC);
	if (version < 0) {
		dev_err(&client->dev, "Chip ID read failed: %d\n", version);
		return -EIO;
	}

	tps6586x = devm_kzalloc(&client->dev, sizeof(*tps6586x), GFP_KERNEL);
	if (!tps6586x)
		return -ENOMEM;

	tps6586x->version = version;
	tps6586x_print_version(client, tps6586x->version);

	tps6586x->client = client;
	tps6586x->dev = &client->dev;
	i2c_set_clientdata(client, tps6586x);

	tps6586x->regmap = devm_regmap_init_i2c(client,
					&tps6586x_regmap_config);
	if (IS_ERR(tps6586x->regmap)) {
		ret = PTR_ERR(tps6586x->regmap);
		dev_err(&client->dev, "regmap init failed: %d\n", ret);
		return ret;
	}


	if (client->irq) {
		ret = tps6586x_irq_init(tps6586x, client->irq,
					pdata->irq_base);
		if (ret) {
			dev_err(&client->dev, "IRQ init failed: %d\n", ret);
			return ret;
		}
	}

	ret = mfd_add_devices(tps6586x->dev, -1,
			      tps6586x_cell, ARRAY_SIZE(tps6586x_cell),
			      NULL, 0, tps6586x->irq_domain);
	if (ret < 0) {
		dev_err(&client->dev, "mfd_add_devices failed: %d\n", ret);
		goto err_mfd_add;
	}

	ret = tps6586x_add_subdevs(tps6586x, pdata);
	if (ret) {
		dev_err(&client->dev, "add devices failed: %d\n", ret);
		goto err_add_devs;
	}

	if (pdata->pm_off && !pm_power_off) {
		tps6586x_dev = &client->dev;
		pm_power_off = tps6586x_power_off;
	}

	return 0;

err_add_devs:
	mfd_remove_devices(tps6586x->dev);
err_mfd_add:
	if (client->irq)
		free_irq(client->irq, tps6586x);
	return ret;
}

static int tps6586x_i2c_remove(struct i2c_client *client)
{
	struct tps6586x *tps6586x = i2c_get_clientdata(client);

	tps6586x_remove_subdevs(tps6586x);
	mfd_remove_devices(tps6586x->dev);
	if (client->irq)
		free_irq(client->irq, tps6586x);
	return 0;
}

static int __maybe_unused tps6586x_i2c_suspend(struct device *dev)
{
	struct tps6586x *tps6586x = dev_get_drvdata(dev);

	if (tps6586x->client->irq)
		disable_irq(tps6586x->client->irq);

	return 0;
}

static int __maybe_unused tps6586x_i2c_resume(struct device *dev)
{
	struct tps6586x *tps6586x = dev_get_drvdata(dev);

	if (tps6586x->client->irq)
		enable_irq(tps6586x->client->irq);

	return 0;
}

static SIMPLE_DEV_PM_OPS(tps6586x_pm_ops, tps6586x_i2c_suspend,
			 tps6586x_i2c_resume);

static const struct i2c_device_id tps6586x_id_table[] = {
	{ "tps6586x", 0 },
	{ },
};
MODULE_DEVICE_TABLE(i2c, tps6586x_id_table);

static struct i2c_driver tps6586x_driver = {
	.driver	= {
		.name	= "tps6586x",
		.of_match_table = of_match_ptr(tps6586x_of_match),
		.pm	= &tps6586x_pm_ops,
	},
	.probe		= tps6586x_i2c_probe,
	.remove		= tps6586x_i2c_remove,
	.id_table	= tps6586x_id_table,
};

static int __init tps6586x_init(void)
{
	return i2c_add_driver(&tps6586x_driver);
}
subsys_initcall(tps6586x_init);

static void __exit tps6586x_exit(void)
{
	i2c_del_driver(&tps6586x_driver);
}
module_exit(tps6586x_exit);

MODULE_DESCRIPTION("TPS6586X core driver");
MODULE_AUTHOR("Mike Rapoport <mike@compulab.co.il>");
MODULE_LICENSE("GPL");
Commit	Line	Data
d2912cb1	1	// SPDX-License-Identifier: GPL-2.0-only
c6c19332 MR	2	/*
	3	* Core driver for TI TPS6586x PMIC family
	4	*
	5	* Copyright (c) 2010 CompuLab Ltd.
	6	* Mike Rapoport <mike@compulab.co.il>
	7	*
	8	* Based on da903x.c.
	9	* Copyright (C) 2008 Compulab, Ltd.
	10	* Mike Rapoport <mike@compulab.co.il>
	11	* Copyright (C) 2006-2008 Marvell International Ltd.
	12	* Eric Miao <eric.miao@marvell.com>
c6c19332 MR	13	*/
c6c19332 MR	14
c26448c4 GK	15	#include <linux/interrupt.h>
c26448c4 GK	16	#include <linux/irq.h>
605511a8	17	#include <linux/irqdomain.h>
c6c19332 MR	18	#include <linux/kernel.h>
	19	#include <linux/module.h>
	20	#include <linux/mutex.h>
	21	#include <linux/slab.h>
1176b5be	22	#include <linux/err.h>
c6c19332	23	#include <linux/i2c.h>
605511a8	24	#include <linux/platform_device.h>
1176b5be	25	#include <linux/regmap.h>
06bf3c2f	26	#include <linux/of.h>
c6c19332 MR	27
	28	#include <linux/mfd/core.h>
	29	#include <linux/mfd/tps6586x.h>
	30
004c15a6 BH	31	#define TPS6586X_SUPPLYENE 0x14
	32	#define EXITSLREQ_BIT BIT(1)
	33	#define SLEEP_MODE_BIT BIT(3)
	34
c26448c4 GK	35	/* interrupt control registers */
	36	#define TPS6586X_INT_ACK1 0xb5
	37	#define TPS6586X_INT_ACK2 0xb6
	38	#define TPS6586X_INT_ACK3 0xb7
	39	#define TPS6586X_INT_ACK4 0xb8
	40
	41	/* interrupt mask registers */
	42	#define TPS6586X_INT_MASK1 0xb0
	43	#define TPS6586X_INT_MASK2 0xb1
	44	#define TPS6586X_INT_MASK3 0xb2
	45	#define TPS6586X_INT_MASK4 0xb3
	46	#define TPS6586X_INT_MASK5 0xb4
	47
c6c19332 MR	48	/* device id */
c6c19332 MR	49	#define TPS6586X_VERSIONCRC 0xcd
c6c19332	50
1176b5be	51	/* Maximum register */
088d862c	52	#define TPS6586X_MAX_REGISTER TPS6586X_VERSIONCRC
1176b5be	53
c26448c4 GK	54	struct tps6586x_irq_data {
	55	u8 mask_reg;
	56	u8 mask_mask;
	57	};
	58
	59	#define TPS6586X_IRQ(_reg, _mask) \
	60	{ \
	61	.mask_reg = (_reg) - TPS6586X_INT_MASK1, \
	62	.mask_mask = (_mask), \
	63	}
	64
	65	static const struct tps6586x_irq_data tps6586x_irqs[] = {
	66	[TPS6586X_INT_PLDO_0] = TPS6586X_IRQ(TPS6586X_INT_MASK1, 1 << 0),
	67	[TPS6586X_INT_PLDO_1] = TPS6586X_IRQ(TPS6586X_INT_MASK1, 1 << 1),
	68	[TPS6586X_INT_PLDO_2] = TPS6586X_IRQ(TPS6586X_INT_MASK1, 1 << 2),
	69	[TPS6586X_INT_PLDO_3] = TPS6586X_IRQ(TPS6586X_INT_MASK1, 1 << 3),
	70	[TPS6586X_INT_PLDO_4] = TPS6586X_IRQ(TPS6586X_INT_MASK1, 1 << 4),
	71	[TPS6586X_INT_PLDO_5] = TPS6586X_IRQ(TPS6586X_INT_MASK1, 1 << 5),
	72	[TPS6586X_INT_PLDO_6] = TPS6586X_IRQ(TPS6586X_INT_MASK1, 1 << 6),
	73	[TPS6586X_INT_PLDO_7] = TPS6586X_IRQ(TPS6586X_INT_MASK1, 1 << 7),
	74	[TPS6586X_INT_COMP_DET] = TPS6586X_IRQ(TPS6586X_INT_MASK4, 1 << 0),
	75	[TPS6586X_INT_ADC] = TPS6586X_IRQ(TPS6586X_INT_MASK2, 1 << 1),
	76	[TPS6586X_INT_PLDO_8] = TPS6586X_IRQ(TPS6586X_INT_MASK2, 1 << 2),
	77	[TPS6586X_INT_PLDO_9] = TPS6586X_IRQ(TPS6586X_INT_MASK2, 1 << 3),
	78	[TPS6586X_INT_PSM_0] = TPS6586X_IRQ(TPS6586X_INT_MASK2, 1 << 4),
	79	[TPS6586X_INT_PSM_1] = TPS6586X_IRQ(TPS6586X_INT_MASK2, 1 << 5),
	80	[TPS6586X_INT_PSM_2] = TPS6586X_IRQ(TPS6586X_INT_MASK2, 1 << 6),
	81	[TPS6586X_INT_PSM_3] = TPS6586X_IRQ(TPS6586X_INT_MASK2, 1 << 7),
	82	[TPS6586X_INT_RTC_ALM1] = TPS6586X_IRQ(TPS6586X_INT_MASK5, 1 << 4),
	83	[TPS6586X_INT_ACUSB_OVP] = TPS6586X_IRQ(TPS6586X_INT_MASK5, 0x03),
	84	[TPS6586X_INT_USB_DET] = TPS6586X_IRQ(TPS6586X_INT_MASK5, 1 << 2),
	85	[TPS6586X_INT_AC_DET] = TPS6586X_IRQ(TPS6586X_INT_MASK5, 1 << 3),
	86	[TPS6586X_INT_BAT_DET] = TPS6586X_IRQ(TPS6586X_INT_MASK3, 1 << 0),
	87	[TPS6586X_INT_CHG_STAT] = TPS6586X_IRQ(TPS6586X_INT_MASK4, 0xfc),
	88	[TPS6586X_INT_CHG_TEMP] = TPS6586X_IRQ(TPS6586X_INT_MASK3, 0x06),
	89	[TPS6586X_INT_PP] = TPS6586X_IRQ(TPS6586X_INT_MASK3, 0xf0),
	90	[TPS6586X_INT_RESUME] = TPS6586X_IRQ(TPS6586X_INT_MASK5, 1 << 5),
	91	[TPS6586X_INT_LOW_SYS] = TPS6586X_IRQ(TPS6586X_INT_MASK5, 1 << 6),
	92	[TPS6586X_INT_RTC_ALM2] = TPS6586X_IRQ(TPS6586X_INT_MASK4, 1 << 1),
	93	};
	94
5b8b1fe2 LD	95	static struct resource tps6586x_rtc_resources[] = {
	96	{
	97	.start = TPS6586X_INT_RTC_ALM1,
	98	.end = TPS6586X_INT_RTC_ALM1,
	99	.flags = IORESOURCE_IRQ,
	100	},
	101	};
	102
30fe2b5b	103	static const struct mfd_cell tps6586x_cell[] = {
7a7487cb LD	104	{
	105	.name = "tps6586x-gpio",
	106	},
64e48160	107	{
ec8da805	108	.name = "tps6586x-regulator",
64e48160	109	},
7a7487cb LD	110	{
7a7487cb LD	111	.name = "tps6586x-rtc",
5b8b1fe2 LD	112	.num_resources = ARRAY_SIZE(tps6586x_rtc_resources),
5b8b1fe2 LD	113	.resources = &tps6586x_rtc_resources[0],
7a7487cb LD	114	},
	115	{
	116	.name = "tps6586x-onkey",
	117	},
	118	};
	119
c6c19332	120	struct tps6586x {
c6c19332 MR	121	struct device *dev;
c6c19332 MR	122	struct i2c_client *client;
1176b5be	123	struct regmap *regmap;
e0a3da80	124	int version;
c6c19332	125
234506ad	126	int irq;
c26448c4 GK	127	struct irq_chip irq_chip;
	128	struct mutex irq_lock;
	129	int irq_base;
	130	u32 irq_en;
c26448c4	131	u8 mask_reg[5];
605511a8	132	struct irq_domain *irq_domain;
c6c19332 MR	133	};
c6c19332 MR	134
1176b5be	135	static inline struct tps6586x dev_to_tps6586x(struct device dev)
c6c19332	136	{
1176b5be	137	return i2c_get_clientdata(to_i2c_client(dev));
c6c19332 MR	138	}
	139
	140	int tps6586x_write(struct device *dev, int reg, uint8_t val)
	141	{
1176b5be LD	142	struct tps6586x *tps6586x = dev_to_tps6586x(dev);
	143
	144	return regmap_write(tps6586x->regmap, reg, val);
c6c19332 MR	145	}
	146	EXPORT_SYMBOL_GPL(tps6586x_write);
	147
	148	int tps6586x_writes(struct device dev, int reg, int len, uint8_t val)
	149	{
1176b5be LD	150	struct tps6586x *tps6586x = dev_to_tps6586x(dev);
	151
	152	return regmap_bulk_write(tps6586x->regmap, reg, val, len);
c6c19332 MR	153	}
	154	EXPORT_SYMBOL_GPL(tps6586x_writes);
	155
	156	int tps6586x_read(struct device dev, int reg, uint8_t val)
	157	{
1176b5be LD	158	struct tps6586x *tps6586x = dev_to_tps6586x(dev);
	159	unsigned int rval;
	160	int ret;
	161
	162	ret = regmap_read(tps6586x->regmap, reg, &rval);
	163	if (!ret)
	164	*val = rval;
	165	return ret;
c6c19332 MR	166	}
	167	EXPORT_SYMBOL_GPL(tps6586x_read);
	168
	169	int tps6586x_reads(struct device dev, int reg, int len, uint8_t val)
	170	{
1176b5be LD	171	struct tps6586x *tps6586x = dev_to_tps6586x(dev);
	172
	173	return regmap_bulk_read(tps6586x->regmap, reg, val, len);
c6c19332 MR	174	}
	175	EXPORT_SYMBOL_GPL(tps6586x_reads);
	176
	177	int tps6586x_set_bits(struct device *dev, int reg, uint8_t bit_mask)
	178	{
1176b5be	179	struct tps6586x *tps6586x = dev_to_tps6586x(dev);
c6c19332	180
1176b5be	181	return regmap_update_bits(tps6586x->regmap, reg, bit_mask, bit_mask);
c6c19332 MR	182	}
	183	EXPORT_SYMBOL_GPL(tps6586x_set_bits);
	184
	185	int tps6586x_clr_bits(struct device *dev, int reg, uint8_t bit_mask)
	186	{
1176b5be	187	struct tps6586x *tps6586x = dev_to_tps6586x(dev);
c6c19332	188
1176b5be	189	return regmap_update_bits(tps6586x->regmap, reg, bit_mask, 0);
c6c19332 MR	190	}
	191	EXPORT_SYMBOL_GPL(tps6586x_clr_bits);
	192
	193	int tps6586x_update(struct device *dev, int reg, uint8_t val, uint8_t mask)
	194	{
1176b5be	195	struct tps6586x *tps6586x = dev_to_tps6586x(dev);
c6c19332	196
1176b5be	197	return regmap_update_bits(tps6586x->regmap, reg, mask, val);
c6c19332 MR	198	}
	199	EXPORT_SYMBOL_GPL(tps6586x_update);
	200
605511a8 LD	201	int tps6586x_irq_get_virq(struct device *dev, int irq)
	202	{
	203	struct tps6586x *tps6586x = dev_to_tps6586x(dev);
	204
	205	return irq_create_mapping(tps6586x->irq_domain, irq);
	206	}
	207	EXPORT_SYMBOL_GPL(tps6586x_irq_get_virq);
	208
e0a3da80 SA	209	int tps6586x_get_version(struct device *dev)
	210	{
	211	struct tps6586x *tps6586x = dev_get_drvdata(dev);
	212
	213	return tps6586x->version;
	214	}
	215	EXPORT_SYMBOL_GPL(tps6586x_get_version);
	216
c6c19332 MR	217	static int __remove_subdev(struct device dev, void unused)
	218	{
	219	platform_device_unregister(to_platform_device(dev));
	220	return 0;
	221	}
	222
	223	static int tps6586x_remove_subdevs(struct tps6586x *tps6586x)
	224	{
	225	return device_for_each_child(tps6586x->dev, NULL, __remove_subdev);
	226	}
	227
96e824bd	228	static void tps6586x_irq_lock(struct irq_data *data)
c26448c4	229	{
96e824bd	230	struct tps6586x *tps6586x = irq_data_get_irq_chip_data(data);
c26448c4 GK	231
	232	mutex_lock(&tps6586x->irq_lock);
	233	}
	234
96e824bd	235	static void tps6586x_irq_enable(struct irq_data *irq_data)
c26448c4	236	{
96e824bd	237	struct tps6586x *tps6586x = irq_data_get_irq_chip_data(irq_data);
605511a8	238	unsigned int __irq = irq_data->hwirq;
c26448c4 GK	239	const struct tps6586x_irq_data *data = &tps6586x_irqs[__irq];
	240
	241	tps6586x->mask_reg[data->mask_reg] &= ~data->mask_mask;
	242	tps6586x->irq_en \|= (1 << __irq);
	243	}
	244
96e824bd	245	static void tps6586x_irq_disable(struct irq_data *irq_data)
c26448c4	246	{
96e824bd	247	struct tps6586x *tps6586x = irq_data_get_irq_chip_data(irq_data);
c26448c4	248
605511a8	249	unsigned int __irq = irq_data->hwirq;
c26448c4 GK	250	const struct tps6586x_irq_data *data = &tps6586x_irqs[__irq];
	251
	252	tps6586x->mask_reg[data->mask_reg] \|= data->mask_mask;
	253	tps6586x->irq_en &= ~(1 << __irq);
	254	}
	255
96e824bd	256	static void tps6586x_irq_sync_unlock(struct irq_data *data)
c26448c4	257	{
96e824bd	258	struct tps6586x *tps6586x = irq_data_get_irq_chip_data(data);
c26448c4 GK	259	int i;
	260
	261	for (i = 0; i < ARRAY_SIZE(tps6586x->mask_reg); i++) {
75edd5af LD	262	int ret;
	263	ret = tps6586x_write(tps6586x->dev,
	264	TPS6586X_INT_MASK1 + i,
	265	tps6586x->mask_reg[i]);
	266	WARN_ON(ret);
c26448c4 GK	267	}
	268
	269	mutex_unlock(&tps6586x->irq_lock);
	270	}
	271
234506ad SW	272	#ifdef CONFIG_PM_SLEEP
	273	static int tps6586x_irq_set_wake(struct irq_data *irq_data, unsigned int on)
	274	{
	275	struct tps6586x *tps6586x = irq_data_get_irq_chip_data(irq_data);
	276	return irq_set_irq_wake(tps6586x->irq, on);
	277	}
	278	#else
	279	#define tps6586x_irq_set_wake NULL
	280	#endif
	281
605511a8 LD	282	static struct irq_chip tps6586x_irq_chip = {
	283	.name = "tps6586x",
	284	.irq_bus_lock = tps6586x_irq_lock,
	285	.irq_bus_sync_unlock = tps6586x_irq_sync_unlock,
	286	.irq_disable = tps6586x_irq_disable,
	287	.irq_enable = tps6586x_irq_enable,
234506ad	288	.irq_set_wake = tps6586x_irq_set_wake,
605511a8 LD	289	};
	290
	291	static int tps6586x_irq_map(struct irq_domain *h, unsigned int virq,
	292	irq_hw_number_t hw)
	293	{
	294	struct tps6586x *tps6586x = h->host_data;
	295
	296	irq_set_chip_data(virq, tps6586x);
	297	irq_set_chip_and_handler(virq, &tps6586x_irq_chip, handle_simple_irq);
	298	irq_set_nested_thread(virq, 1);
605511a8	299	irq_set_noprobe(virq);
605511a8 LD	300
	301	return 0;
	302	}
	303
7ce7b26f	304	static const struct irq_domain_ops tps6586x_domain_ops = {
605511a8 LD	305	.map = tps6586x_irq_map,
	306	.xlate = irq_domain_xlate_twocell,
	307	};
	308
c26448c4 GK	309	static irqreturn_t tps6586x_irq(int irq, void *data)
	310	{
	311	struct tps6586x *tps6586x = data;
	312	u32 acks;
	313	int ret = 0;
	314
	315	ret = tps6586x_reads(tps6586x->dev, TPS6586X_INT_ACK1,
	316	sizeof(acks), (uint8_t *)&acks);
	317
	318	if (ret < 0) {
	319	dev_err(tps6586x->dev, "failed to read interrupt status\n");
	320	return IRQ_NONE;
	321	}
	322
	323	acks = le32_to_cpu(acks);
	324
	325	while (acks) {
	326	int i = __ffs(acks);
	327
	328	if (tps6586x->irq_en & (1 << i))
605511a8 LD	329	handle_nested_irq(
605511a8 LD	330	irq_find_mapping(tps6586x->irq_domain, i));
c26448c4 GK	331
	332	acks &= ~(1 << i);
	333	}
	334
	335	return IRQ_HANDLED;
	336	}
	337
f791be49	338	static int tps6586x_irq_init(struct tps6586x *tps6586x, int irq,
c26448c4 GK	339	int irq_base)
	340	{
	341	int i, ret;
	342	u8 tmp[4];
605511a8 LD	343	int new_irq_base;
605511a8 LD	344	int irq_num = ARRAY_SIZE(tps6586x_irqs);
c26448c4	345
234506ad SW	346	tps6586x->irq = irq;
234506ad SW	347
c26448c4 GK	348	mutex_init(&tps6586x->irq_lock);
c26448c4 GK	349	for (i = 0; i < 5; i++) {
c26448c4 GK	350	tps6586x->mask_reg[i] = 0xff;
	351	tps6586x_write(tps6586x->dev, TPS6586X_INT_MASK1 + i, 0xff);
	352	}
	353
	354	tps6586x_reads(tps6586x->dev, TPS6586X_INT_ACK1, sizeof(tmp), tmp);
	355
605511a8 LD	356	if (irq_base > 0) {
	357	new_irq_base = irq_alloc_descs(irq_base, 0, irq_num, -1);
	358	if (new_irq_base < 0) {
	359	dev_err(tps6586x->dev,
	360	"Failed to alloc IRQs: %d\n", new_irq_base);
	361	return new_irq_base;
	362	}
	363	} else {
	364	new_irq_base = 0;
c26448c4 GK	365	}
c26448c4 GK	366
605511a8 LD	367	tps6586x->irq_domain = irq_domain_add_simple(tps6586x->dev->of_node,
	368	irq_num, new_irq_base, &tps6586x_domain_ops,
	369	tps6586x);
	370	if (!tps6586x->irq_domain) {
	371	dev_err(tps6586x->dev, "Failed to create IRQ domain\n");
	372	return -ENOMEM;
	373	}
c26448c4 GK	374	ret = request_threaded_irq(irq, NULL, tps6586x_irq, IRQF_ONESHOT,
	375	"tps6586x", tps6586x);
	376
234506ad	377	if (!ret)
c26448c4	378	device_init_wakeup(tps6586x->dev, 1);
c26448c4 GK	379
	380	return ret;
	381	}
	382
f791be49	383	static int tps6586x_add_subdevs(struct tps6586x *tps6586x,
c6c19332 MR	384	struct tps6586x_platform_data *pdata)
	385	{
	386	struct tps6586x_subdev_info *subdev;
	387	struct platform_device *pdev;
	388	int i, ret = 0;
	389
	390	for (i = 0; i < pdata->num_subdevs; i++) {
	391	subdev = &pdata->subdevs[i];
	392
	393	pdev = platform_device_alloc(subdev->name, subdev->id);
929980ab AL	394	if (!pdev) {
	395	ret = -ENOMEM;
	396	goto failed;
	397	}
c6c19332 MR	398
	399	pdev->dev.parent = tps6586x->dev;
	400	pdev->dev.platform_data = subdev->platform_data;
62f6b087	401	pdev->dev.of_node = subdev->of_node;
c6c19332 MR	402
c6c19332 MR	403	ret = platform_device_add(pdev);
929980ab AL	404	if (ret) {
929980ab AL	405	platform_device_put(pdev);
c6c19332	406	goto failed;
929980ab	407	}
c6c19332 MR	408	}
	409	return 0;
	410
	411	failed:
	412	tps6586x_remove_subdevs(tps6586x);
	413	return ret;
	414	}
	415
62f6b087	416	#ifdef CONFIG_OF
62f6b087 TR	417	static struct tps6586x_platform_data tps6586x_parse_dt(struct i2c_client client)
62f6b087 TR	418	{
62f6b087 TR	419	struct device_node *np = client->dev.of_node;
62f6b087 TR	420	struct tps6586x_platform_data *pdata;
62f6b087 TR	421
62f6b087 TR	422	pdata = devm_kzalloc(&client->dev, sizeof(*pdata), GFP_KERNEL);
feafdffa	423	if (!pdata)
62f6b087 TR	424	return NULL;
62f6b087 TR	425
64e48160 LD	426	pdata->num_subdevs = 0;
64e48160 LD	427	pdata->subdevs = NULL;
62f6b087 TR	428	pdata->gpio_base = -1;
62f6b087 TR	429	pdata->irq_base = -1;
004c15a6	430	pdata->pm_off = of_property_read_bool(np, "ti,system-power-controller");
62f6b087 TR	431
	432	return pdata;
	433	}
	434
a58cc84c	435	static const struct of_device_id tps6586x_of_match[] = {
62f6b087 TR	436	{ .compatible = "ti,tps6586x", },
	437	{ },
	438	};
	439	#else
	440	static struct tps6586x_platform_data tps6586x_parse_dt(struct i2c_client client)
	441	{
	442	return NULL;
	443	}
	444	#endif
	445
75edd5af LD	446	static bool is_volatile_reg(struct device *dev, unsigned int reg)
	447	{
	448	/* Cache all interrupt mask register */
	449	if ((reg >= TPS6586X_INT_MASK1) && (reg <= TPS6586X_INT_MASK5))
	450	return false;
	451
	452	return true;
	453	}
	454
1176b5be LD	455	static const struct regmap_config tps6586x_regmap_config = {
	456	.reg_bits = 8,
	457	.val_bits = 8,
088d862c	458	.max_register = TPS6586X_MAX_REGISTER,
75edd5af LD	459	.volatile_reg = is_volatile_reg,
75edd5af LD	460	.cache_type = REGCACHE_RBTREE,
1176b5be LD	461	};
1176b5be LD	462
004c15a6 BH	463	static struct device *tps6586x_dev;
	464	static void tps6586x_power_off(void)
	465	{
	466	if (tps6586x_clr_bits(tps6586x_dev, TPS6586X_SUPPLYENE, EXITSLREQ_BIT))
	467	return;
	468
	469	tps6586x_set_bits(tps6586x_dev, TPS6586X_SUPPLYENE, SLEEP_MODE_BIT);
	470	}
	471
e0a3da80 SA	472	static void tps6586x_print_version(struct i2c_client *client, int version)
	473	{
	474	const char *name;
	475
	476	switch (version) {
	477	case TPS658621A:
	478	name = "TPS658621A";
	479	break;
	480	case TPS658621CD:
	481	name = "TPS658621C/D";
	482	break;
	483	case TPS658623:
	484	name = "TPS658623";
	485	break;
6c46ccc8 AB	486	case TPS658640:
	487	case TPS658640v2:
	488	name = "TPS658640";
	489	break;
e0a3da80 SA	490	case TPS658643:
	491	name = "TPS658643";
	492	break;
	493	default:
	494	name = "TPS6586X";
	495	break;
	496	}
	497
	498	dev_info(&client->dev, "Found %s, VERSIONCRC is %02x\n", name, version);
	499	}
	500
f791be49	501	static int tps6586x_i2c_probe(struct i2c_client *client,
c6c19332 MR	502	const struct i2c_device_id *id)
c6c19332 MR	503	{
334a41ce	504	struct tps6586x_platform_data *pdata = dev_get_platdata(&client->dev);
c6c19332 MR	505	struct tps6586x *tps6586x;
c6c19332 MR	506	int ret;
e0a3da80	507	int version;
c6c19332	508
62f6b087 TR	509	if (!pdata && client->dev.of_node)
	510	pdata = tps6586x_parse_dt(client);
	511
c6c19332 MR	512	if (!pdata) {
	513	dev_err(&client->dev, "tps6586x requires platform data\n");
	514	return -ENOTSUPP;
	515	}
	516
e0a3da80 SA	517	version = i2c_smbus_read_byte_data(client, TPS6586X_VERSIONCRC);
	518	if (version < 0) {
	519	dev_err(&client->dev, "Chip ID read failed: %d\n", version);
c6c19332 MR	520	return -EIO;
	521	}
	522
b6719412	523	tps6586x = devm_kzalloc(&client->dev, sizeof(*tps6586x), GFP_KERNEL);
e0a3da80	524	if (!tps6586x)
c6c19332	525	return -ENOMEM;
e0a3da80 SA	526
	527	tps6586x->version = version;
	528	tps6586x_print_version(client, tps6586x->version);
c6c19332 MR	529
	530	tps6586x->client = client;
	531	tps6586x->dev = &client->dev;
	532	i2c_set_clientdata(client, tps6586x);
	533
1176b5be LD	534	tps6586x->regmap = devm_regmap_init_i2c(client,
	535	&tps6586x_regmap_config);
	536	if (IS_ERR(tps6586x->regmap)) {
	537	ret = PTR_ERR(tps6586x->regmap);
	538	dev_err(&client->dev, "regmap init failed: %d\n", ret);
	539	return ret;
	540	}
	541
c6c19332	542
c26448c4 GK	543	if (client->irq) {
	544	ret = tps6586x_irq_init(tps6586x, client->irq,
	545	pdata->irq_base);
	546	if (ret) {
	547	dev_err(&client->dev, "IRQ init failed: %d\n", ret);
b6719412	548	return ret;
c26448c4 GK	549	}
	550	}
	551
7a7487cb	552	ret = mfd_add_devices(tps6586x->dev, -1,
0848c94f	553	tps6586x_cell, ARRAY_SIZE(tps6586x_cell),
5b8b1fe2	554	NULL, 0, tps6586x->irq_domain);
7a7487cb LD	555	if (ret < 0) {
	556	dev_err(&client->dev, "mfd_add_devices failed: %d\n", ret);
	557	goto err_mfd_add;
6f9f13bf VP	558	}
6f9f13bf VP	559
c6c19332 MR	560	ret = tps6586x_add_subdevs(tps6586x, pdata);
	561	if (ret) {
	562	dev_err(&client->dev, "add devices failed: %d\n", ret);
	563	goto err_add_devs;
	564	}
	565
004c15a6 BH	566	if (pdata->pm_off && !pm_power_off) {
	567	tps6586x_dev = &client->dev;
	568	pm_power_off = tps6586x_power_off;
	569	}
	570
c6c19332 MR	571	return 0;
	572
	573	err_add_devs:
7a7487cb LD	574	mfd_remove_devices(tps6586x->dev);
7a7487cb LD	575	err_mfd_add:
c26448c4 GK	576	if (client->irq)
c26448c4 GK	577	free_irq(client->irq, tps6586x);
c6c19332 MR	578	return ret;
	579	}
	580
4740f73f	581	static int tps6586x_i2c_remove(struct i2c_client *client)
c6c19332	582	{
4b751cf5	583	struct tps6586x *tps6586x = i2c_get_clientdata(client);
4b751cf5	584
7a7487cb LD	585	tps6586x_remove_subdevs(tps6586x);
7a7487cb LD	586	mfd_remove_devices(tps6586x->dev);
c26448c4 GK	587	if (client->irq)
c26448c4 GK	588	free_irq(client->irq, tps6586x);
c6c19332 MR	589	return 0;
	590	}
	591
ac4ca4b9 JH	592	static int __maybe_unused tps6586x_i2c_suspend(struct device *dev)
	593	{
	594	struct tps6586x *tps6586x = dev_get_drvdata(dev);
	595
	596	if (tps6586x->client->irq)
	597	disable_irq(tps6586x->client->irq);
	598
	599	return 0;
	600	}
	601
	602	static int __maybe_unused tps6586x_i2c_resume(struct device *dev)
	603	{
	604	struct tps6586x *tps6586x = dev_get_drvdata(dev);
	605
	606	if (tps6586x->client->irq)
	607	enable_irq(tps6586x->client->irq);
	608
	609	return 0;
	610	}
	611
	612	static SIMPLE_DEV_PM_OPS(tps6586x_pm_ops, tps6586x_i2c_suspend,
	613	tps6586x_i2c_resume);
	614
c6c19332 MR	615	static const struct i2c_device_id tps6586x_id_table[] = {
	616	{ "tps6586x", 0 },
	617	{ },
	618	};
	619	MODULE_DEVICE_TABLE(i2c, tps6586x_id_table);
	620
	621	static struct i2c_driver tps6586x_driver = {
	622	.driver = {
	623	.name = "tps6586x",
62f6b087	624	.of_match_table = of_match_ptr(tps6586x_of_match),
ac4ca4b9	625	.pm = &tps6586x_pm_ops,
c6c19332 MR	626	},
c6c19332 MR	627	.probe = tps6586x_i2c_probe,
84449216	628	.remove = tps6586x_i2c_remove,
c6c19332 MR	629	.id_table = tps6586x_id_table,
	630	};
	631
	632	static int __init tps6586x_init(void)
	633	{
	634	return i2c_add_driver(&tps6586x_driver);
	635	}
	636	subsys_initcall(tps6586x_init);
	637
	638	static void __exit tps6586x_exit(void)
	639	{
	640	i2c_del_driver(&tps6586x_driver);
	641	}
	642	module_exit(tps6586x_exit);
	643
	644	MODULE_DESCRIPTION("TPS6586X core driver");
	645	MODULE_AUTHOR("Mike Rapoport <mike@compulab.co.il>");
	646	MODULE_LICENSE("GPL");