[linux.git] / drivers / mfd / axp20x.c

/*
 * axp20x.c - MFD core driver for the X-Powers' Power Management ICs
 *
 * AXP20x typically comprises an adaptive USB-Compatible PWM charger, BUCK DC-DC
 * converters, LDOs, multiple 12-bit ADCs of voltage, current and temperature
 * as well as configurable GPIOs.
 *
 * Author: Carlo Caione <[email protected]>
 *
 * 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/err.h>
#include <linux/i2c.h>
#include <linux/interrupt.h>
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/pm_runtime.h>
#include <linux/regmap.h>
#include <linux/slab.h>
#include <linux/regulator/consumer.h>
#include <linux/mfd/axp20x.h>
#include <linux/mfd/core.h>
#include <linux/of_device.h>
#include <linux/of_irq.h>
#include <linux/acpi.h>

#define AXP20X_OFF	0x80

static const char * const axp20x_model_names[] = {
	"AXP202",
	"AXP209",
	"AXP288",
};

static const struct regmap_range axp20x_writeable_ranges[] = {
	regmap_reg_range(AXP20X_DATACACHE(0), AXP20X_IRQ5_STATE),
	regmap_reg_range(AXP20X_DCDC_MODE, AXP20X_FG_RES),
};

static const struct regmap_range axp20x_volatile_ranges[] = {
	regmap_reg_range(AXP20X_IRQ1_EN, AXP20X_IRQ5_STATE),
};

static const struct regmap_access_table axp20x_writeable_table = {
	.yes_ranges	= axp20x_writeable_ranges,
	.n_yes_ranges	= ARRAY_SIZE(axp20x_writeable_ranges),
};

static const struct regmap_access_table axp20x_volatile_table = {
	.yes_ranges	= axp20x_volatile_ranges,
	.n_yes_ranges	= ARRAY_SIZE(axp20x_volatile_ranges),
};

static const struct regmap_range axp288_writeable_ranges[] = {
	regmap_reg_range(AXP20X_DATACACHE(0), AXP20X_IRQ6_STATE),
	regmap_reg_range(AXP20X_DCDC_MODE, AXP288_FG_TUNE5),
};

static const struct regmap_range axp288_volatile_ranges[] = {
	regmap_reg_range(AXP20X_IRQ1_EN, AXP20X_IPSOUT_V_HIGH_L),
};

static const struct regmap_access_table axp288_writeable_table = {
	.yes_ranges	= axp288_writeable_ranges,
	.n_yes_ranges	= ARRAY_SIZE(axp288_writeable_ranges),
};

static const struct regmap_access_table axp288_volatile_table = {
	.yes_ranges	= axp288_volatile_ranges,
	.n_yes_ranges	= ARRAY_SIZE(axp288_volatile_ranges),
};

static struct resource axp20x_pek_resources[] = {
	{
		.name	= "PEK_DBR",
		.start	= AXP20X_IRQ_PEK_RIS_EDGE,
		.end	= AXP20X_IRQ_PEK_RIS_EDGE,
		.flags	= IORESOURCE_IRQ,
	}, {
		.name	= "PEK_DBF",
		.start	= AXP20X_IRQ_PEK_FAL_EDGE,
		.end	= AXP20X_IRQ_PEK_FAL_EDGE,
		.flags	= IORESOURCE_IRQ,
	},
};

static struct resource axp288_fuel_gauge_resources[] = {
	{
		.start = AXP288_IRQ_QWBTU,
		.end   = AXP288_IRQ_QWBTU,
		.flags = IORESOURCE_IRQ,
	},
	{
		.start = AXP288_IRQ_WBTU,
		.end   = AXP288_IRQ_WBTU,
		.flags = IORESOURCE_IRQ,
	},
	{
		.start = AXP288_IRQ_QWBTO,
		.end   = AXP288_IRQ_QWBTO,
		.flags = IORESOURCE_IRQ,
	},
	{
		.start = AXP288_IRQ_WBTO,
		.end   = AXP288_IRQ_WBTO,
		.flags = IORESOURCE_IRQ,
	},
	{
		.start = AXP288_IRQ_WL2,
		.end   = AXP288_IRQ_WL2,
		.flags = IORESOURCE_IRQ,
	},
	{
		.start = AXP288_IRQ_WL1,
		.end   = AXP288_IRQ_WL1,
		.flags = IORESOURCE_IRQ,
	},
};

static const struct regmap_config axp20x_regmap_config = {
	.reg_bits	= 8,
	.val_bits	= 8,
	.wr_table	= &axp20x_writeable_table,
	.volatile_table	= &axp20x_volatile_table,
	.max_register	= AXP20X_FG_RES,
	.cache_type	= REGCACHE_RBTREE,
};

static const struct regmap_config axp288_regmap_config = {
	.reg_bits	= 8,
	.val_bits	= 8,
	.wr_table	= &axp288_writeable_table,
	.volatile_table	= &axp288_volatile_table,
	.max_register	= AXP288_FG_TUNE5,
	.cache_type	= REGCACHE_RBTREE,
};

#define INIT_REGMAP_IRQ(_variant, _irq, _off, _mask)			\
	[_variant##_IRQ_##_irq] = { .reg_offset = (_off), .mask = BIT(_mask) }

static const struct regmap_irq axp20x_regmap_irqs[] = {
	INIT_REGMAP_IRQ(AXP20X, ACIN_OVER_V,		0, 7),
	INIT_REGMAP_IRQ(AXP20X, ACIN_PLUGIN,		0, 6),
	INIT_REGMAP_IRQ(AXP20X, ACIN_REMOVAL,	        0, 5),
	INIT_REGMAP_IRQ(AXP20X, VBUS_OVER_V,		0, 4),
	INIT_REGMAP_IRQ(AXP20X, VBUS_PLUGIN,		0, 3),
	INIT_REGMAP_IRQ(AXP20X, VBUS_REMOVAL,	        0, 2),
	INIT_REGMAP_IRQ(AXP20X, VBUS_V_LOW,		0, 1),
	INIT_REGMAP_IRQ(AXP20X, BATT_PLUGIN,		1, 7),
	INIT_REGMAP_IRQ(AXP20X, BATT_REMOVAL,	        1, 6),
	INIT_REGMAP_IRQ(AXP20X, BATT_ENT_ACT_MODE,	1, 5),
	INIT_REGMAP_IRQ(AXP20X, BATT_EXIT_ACT_MODE,	1, 4),
	INIT_REGMAP_IRQ(AXP20X, CHARG,		        1, 3),
	INIT_REGMAP_IRQ(AXP20X, CHARG_DONE,		1, 2),
	INIT_REGMAP_IRQ(AXP20X, BATT_TEMP_HIGH,	        1, 1),
	INIT_REGMAP_IRQ(AXP20X, BATT_TEMP_LOW,	        1, 0),
	INIT_REGMAP_IRQ(AXP20X, DIE_TEMP_HIGH,	        2, 7),
	INIT_REGMAP_IRQ(AXP20X, CHARG_I_LOW,		2, 6),
	INIT_REGMAP_IRQ(AXP20X, DCDC1_V_LONG,	        2, 5),
	INIT_REGMAP_IRQ(AXP20X, DCDC2_V_LONG,	        2, 4),
	INIT_REGMAP_IRQ(AXP20X, DCDC3_V_LONG,	        2, 3),
	INIT_REGMAP_IRQ(AXP20X, PEK_SHORT,		2, 1),
	INIT_REGMAP_IRQ(AXP20X, PEK_LONG,		2, 0),
	INIT_REGMAP_IRQ(AXP20X, N_OE_PWR_ON,		3, 7),
	INIT_REGMAP_IRQ(AXP20X, N_OE_PWR_OFF,	        3, 6),
	INIT_REGMAP_IRQ(AXP20X, VBUS_VALID,		3, 5),
	INIT_REGMAP_IRQ(AXP20X, VBUS_NOT_VALID,	        3, 4),
	INIT_REGMAP_IRQ(AXP20X, VBUS_SESS_VALID,	3, 3),
	INIT_REGMAP_IRQ(AXP20X, VBUS_SESS_END,	        3, 2),
	INIT_REGMAP_IRQ(AXP20X, LOW_PWR_LVL1,	        3, 1),
	INIT_REGMAP_IRQ(AXP20X, LOW_PWR_LVL2,	        3, 0),
	INIT_REGMAP_IRQ(AXP20X, TIMER,		        4, 7),
	INIT_REGMAP_IRQ(AXP20X, PEK_RIS_EDGE,	        4, 6),
	INIT_REGMAP_IRQ(AXP20X, PEK_FAL_EDGE,	        4, 5),
	INIT_REGMAP_IRQ(AXP20X, GPIO3_INPUT,		4, 3),
	INIT_REGMAP_IRQ(AXP20X, GPIO2_INPUT,		4, 2),
	INIT_REGMAP_IRQ(AXP20X, GPIO1_INPUT,		4, 1),
	INIT_REGMAP_IRQ(AXP20X, GPIO0_INPUT,		4, 0),
};

/* some IRQs are compatible with axp20x models */
static const struct regmap_irq axp288_regmap_irqs[] = {
	INIT_REGMAP_IRQ(AXP288, VBUS_FALL,              0, 2),
	INIT_REGMAP_IRQ(AXP288, VBUS_RISE,              0, 3),
	INIT_REGMAP_IRQ(AXP288, OV,                     0, 4),

	INIT_REGMAP_IRQ(AXP288, DONE,                   1, 2),
	INIT_REGMAP_IRQ(AXP288, CHARGING,               1, 3),
	INIT_REGMAP_IRQ(AXP288, SAFE_QUIT,              1, 4),
	INIT_REGMAP_IRQ(AXP288, SAFE_ENTER,             1, 5),
	INIT_REGMAP_IRQ(AXP288, ABSENT,                 1, 6),
	INIT_REGMAP_IRQ(AXP288, APPEND,                 1, 7),

	INIT_REGMAP_IRQ(AXP288, QWBTU,                  2, 0),
	INIT_REGMAP_IRQ(AXP288, WBTU,                   2, 1),
	INIT_REGMAP_IRQ(AXP288, QWBTO,                  2, 2),
	INIT_REGMAP_IRQ(AXP288, WBTO,                   2, 3),
	INIT_REGMAP_IRQ(AXP288, QCBTU,                  2, 4),
	INIT_REGMAP_IRQ(AXP288, CBTU,                   2, 5),
	INIT_REGMAP_IRQ(AXP288, QCBTO,                  2, 6),
	INIT_REGMAP_IRQ(AXP288, CBTO,                   2, 7),

	INIT_REGMAP_IRQ(AXP288, WL2,                    3, 0),
	INIT_REGMAP_IRQ(AXP288, WL1,                    3, 1),
	INIT_REGMAP_IRQ(AXP288, GPADC,                  3, 2),
	INIT_REGMAP_IRQ(AXP288, OT,                     3, 7),

	INIT_REGMAP_IRQ(AXP288, GPIO0,                  4, 0),
	INIT_REGMAP_IRQ(AXP288, GPIO1,                  4, 1),
	INIT_REGMAP_IRQ(AXP288, POKO,                   4, 2),
	INIT_REGMAP_IRQ(AXP288, POKL,                   4, 3),
	INIT_REGMAP_IRQ(AXP288, POKS,                   4, 4),
	INIT_REGMAP_IRQ(AXP288, POKN,                   4, 5),
	INIT_REGMAP_IRQ(AXP288, POKP,                   4, 6),
	INIT_REGMAP_IRQ(AXP288, TIMER,                  4, 7),

	INIT_REGMAP_IRQ(AXP288, MV_CHNG,                5, 0),
	INIT_REGMAP_IRQ(AXP288, BC_USB_CHNG,            5, 1),
};

static const struct of_device_id axp20x_of_match[] = {
	{ .compatible = "x-powers,axp202", .data = (void *) AXP202_ID },
	{ .compatible = "x-powers,axp209", .data = (void *) AXP209_ID },
	{ },
};
MODULE_DEVICE_TABLE(of, axp20x_of_match);

/*
 * This is useless for OF-enabled devices, but it is needed by I2C subsystem
 */
static const struct i2c_device_id axp20x_i2c_id[] = {
	{ },
};
MODULE_DEVICE_TABLE(i2c, axp20x_i2c_id);

static const struct acpi_device_id axp20x_acpi_match[] = {
	{
		.id = "INT33F4",
		.driver_data = AXP288_ID,
	},
	{ },
};
MODULE_DEVICE_TABLE(acpi, axp20x_acpi_match);

static const struct regmap_irq_chip axp20x_regmap_irq_chip = {
	.name			= "axp20x_irq_chip",
	.status_base		= AXP20X_IRQ1_STATE,
	.ack_base		= AXP20X_IRQ1_STATE,
	.mask_base		= AXP20X_IRQ1_EN,
	.mask_invert		= true,
	.init_ack_masked	= true,
	.irqs			= axp20x_regmap_irqs,
	.num_irqs		= ARRAY_SIZE(axp20x_regmap_irqs),
	.num_regs		= 5,

};

static const struct regmap_irq_chip axp288_regmap_irq_chip = {
	.name			= "axp288_irq_chip",
	.status_base		= AXP20X_IRQ1_STATE,
	.ack_base		= AXP20X_IRQ1_STATE,
	.mask_base		= AXP20X_IRQ1_EN,
	.mask_invert		= true,
	.init_ack_masked	= true,
	.irqs			= axp288_regmap_irqs,
	.num_irqs		= ARRAY_SIZE(axp288_regmap_irqs),
	.num_regs		= 6,

};

static struct mfd_cell axp20x_cells[] = {
	{
		.name			= "axp20x-pek",
		.num_resources		= ARRAY_SIZE(axp20x_pek_resources),
		.resources		= axp20x_pek_resources,
	}, {
		.name			= "axp20x-regulator",
	},
};

static struct resource axp288_adc_resources[] = {
	{
		.name  = "GPADC",
		.start = AXP288_IRQ_GPADC,
		.end   = AXP288_IRQ_GPADC,
		.flags = IORESOURCE_IRQ,
	},
};

static struct resource axp288_extcon_resources[] = {
	{
		.start = AXP288_IRQ_VBUS_FALL,
		.end   = AXP288_IRQ_VBUS_FALL,
		.flags = IORESOURCE_IRQ,
	},
	{
		.start = AXP288_IRQ_VBUS_RISE,
		.end   = AXP288_IRQ_VBUS_RISE,
		.flags = IORESOURCE_IRQ,
	},
	{
		.start = AXP288_IRQ_MV_CHNG,
		.end   = AXP288_IRQ_MV_CHNG,
		.flags = IORESOURCE_IRQ,
	},
	{
		.start = AXP288_IRQ_BC_USB_CHNG,
		.end   = AXP288_IRQ_BC_USB_CHNG,
		.flags = IORESOURCE_IRQ,
	},
};

static struct resource axp288_charger_resources[] = {
	{
		.start = AXP288_IRQ_OV,
		.end   = AXP288_IRQ_OV,
		.flags = IORESOURCE_IRQ,
	},
	{
		.start = AXP288_IRQ_DONE,
		.end   = AXP288_IRQ_DONE,
		.flags = IORESOURCE_IRQ,
	},
	{
		.start = AXP288_IRQ_CHARGING,
		.end   = AXP288_IRQ_CHARGING,
		.flags = IORESOURCE_IRQ,
	},
	{
		.start = AXP288_IRQ_SAFE_QUIT,
		.end   = AXP288_IRQ_SAFE_QUIT,
		.flags = IORESOURCE_IRQ,
	},
	{
		.start = AXP288_IRQ_SAFE_ENTER,
		.end   = AXP288_IRQ_SAFE_ENTER,
		.flags = IORESOURCE_IRQ,
	},
	{
		.start = AXP288_IRQ_QCBTU,
		.end   = AXP288_IRQ_QCBTU,
		.flags = IORESOURCE_IRQ,
	},
	{
		.start = AXP288_IRQ_CBTU,
		.end   = AXP288_IRQ_CBTU,
		.flags = IORESOURCE_IRQ,
	},
	{
		.start = AXP288_IRQ_QCBTO,
		.end   = AXP288_IRQ_QCBTO,
		.flags = IORESOURCE_IRQ,
	},
	{
		.start = AXP288_IRQ_CBTO,
		.end   = AXP288_IRQ_CBTO,
		.flags = IORESOURCE_IRQ,
	},
};

static struct mfd_cell axp288_cells[] = {
	{
		.name = "axp288_adc",
		.num_resources = ARRAY_SIZE(axp288_adc_resources),
		.resources = axp288_adc_resources,
	},
	{
		.name = "axp288_extcon",
		.num_resources = ARRAY_SIZE(axp288_extcon_resources),
		.resources = axp288_extcon_resources,
	},
	{
		.name = "axp288_charger",
		.num_resources = ARRAY_SIZE(axp288_charger_resources),
		.resources = axp288_charger_resources,
	},
	{
		.name = "axp288_fuel_gauge",
		.num_resources = ARRAY_SIZE(axp288_fuel_gauge_resources),
		.resources = axp288_fuel_gauge_resources,
	},
	{
		.name = "axp288_pmic_acpi",
	},
};

static struct axp20x_dev *axp20x_pm_power_off;
static void axp20x_power_off(void)
{
	if (axp20x_pm_power_off->variant == AXP288_ID)
		return;

	regmap_write(axp20x_pm_power_off->regmap, AXP20X_OFF_CTRL,
		     AXP20X_OFF);
}

static int axp20x_match_device(struct axp20x_dev *axp20x, struct device *dev)
{
	const struct acpi_device_id *acpi_id;
	const struct of_device_id *of_id;

	if (dev->of_node) {
		of_id = of_match_device(axp20x_of_match, dev);
		if (!of_id) {
			dev_err(dev, "Unable to match OF ID\n");
			return -ENODEV;
		}
		axp20x->variant = (long) of_id->data;
	} else {
		acpi_id = acpi_match_device(dev->driver->acpi_match_table, dev);
		if (!acpi_id || !acpi_id->driver_data) {
			dev_err(dev, "Unable to match ACPI ID and data\n");
			return -ENODEV;
		}
		axp20x->variant = (long) acpi_id->driver_data;
	}

	switch (axp20x->variant) {
	case AXP202_ID:
	case AXP209_ID:
		axp20x->nr_cells = ARRAY_SIZE(axp20x_cells);
		axp20x->cells = axp20x_cells;
		axp20x->regmap_cfg = &axp20x_regmap_config;
		axp20x->regmap_irq_chip = &axp20x_regmap_irq_chip;
		break;
	case AXP288_ID:
		axp20x->cells = axp288_cells;
		axp20x->nr_cells = ARRAY_SIZE(axp288_cells);
		axp20x->regmap_cfg = &axp288_regmap_config;
		axp20x->regmap_irq_chip = &axp288_regmap_irq_chip;
		break;
	default:
		dev_err(dev, "unsupported AXP20X ID %lu\n", axp20x->variant);
		return -EINVAL;
	}
	dev_info(dev, "AXP20x variant %s found\n",
		axp20x_model_names[axp20x->variant]);

	return 0;
}

static int axp20x_i2c_probe(struct i2c_client *i2c,
			 const struct i2c_device_id *id)
{
	struct axp20x_dev *axp20x;
	int ret;

	axp20x = devm_kzalloc(&i2c->dev, sizeof(*axp20x), GFP_KERNEL);
	if (!axp20x)
		return -ENOMEM;

	ret = axp20x_match_device(axp20x, &i2c->dev);
	if (ret)
		return ret;

	axp20x->i2c_client = i2c;
	axp20x->dev = &i2c->dev;
	dev_set_drvdata(axp20x->dev, axp20x);

	axp20x->regmap = devm_regmap_init_i2c(i2c, axp20x->regmap_cfg);
	if (IS_ERR(axp20x->regmap)) {
		ret = PTR_ERR(axp20x->regmap);
		dev_err(&i2c->dev, "regmap init failed: %d\n", ret);
		return ret;
	}

	ret = regmap_add_irq_chip(axp20x->regmap, i2c->irq,
				  IRQF_ONESHOT | IRQF_SHARED, -1,
				  axp20x->regmap_irq_chip,
				  &axp20x->regmap_irqc);
	if (ret) {
		dev_err(&i2c->dev, "failed to add irq chip: %d\n", ret);
		return ret;
	}

	ret = mfd_add_devices(axp20x->dev, -1, axp20x->cells,
			axp20x->nr_cells, NULL, 0, NULL);

	if (ret) {
		dev_err(&i2c->dev, "failed to add MFD devices: %d\n", ret);
		regmap_del_irq_chip(i2c->irq, axp20x->regmap_irqc);
		return ret;
	}

	if (!pm_power_off) {
		axp20x_pm_power_off = axp20x;
		pm_power_off = axp20x_power_off;
	}

	dev_info(&i2c->dev, "AXP20X driver loaded\n");

	return 0;
}

static int axp20x_i2c_remove(struct i2c_client *i2c)
{
	struct axp20x_dev *axp20x = i2c_get_clientdata(i2c);

	if (axp20x == axp20x_pm_power_off) {
		axp20x_pm_power_off = NULL;
		pm_power_off = NULL;
	}

	mfd_remove_devices(axp20x->dev);
	regmap_del_irq_chip(axp20x->i2c_client->irq, axp20x->regmap_irqc);

	return 0;
}

static struct i2c_driver axp20x_i2c_driver = {
	.driver = {
		.name	= "axp20x",
		.owner	= THIS_MODULE,
		.of_match_table	= of_match_ptr(axp20x_of_match),
		.acpi_match_table = ACPI_PTR(axp20x_acpi_match),
	},
	.probe		= axp20x_i2c_probe,
	.remove		= axp20x_i2c_remove,
	.id_table	= axp20x_i2c_id,
};

module_i2c_driver(axp20x_i2c_driver);

MODULE_DESCRIPTION("PMIC MFD core driver for AXP20X");
MODULE_AUTHOR("Carlo Caione <[email protected]>");
MODULE_LICENSE("GPL");
Commit	Line	Data
cfb61a41	1	/*
af7e9069	2	* axp20x.c - MFD core driver for the X-Powers' Power Management ICs
cfb61a41	3	*
af7e9069 JP	4	* AXP20x typically comprises an adaptive USB-Compatible PWM charger, BUCK DC-DC
	5	* converters, LDOs, multiple 12-bit ADCs of voltage, current and temperature
	6	* as well as configurable GPIOs.
cfb61a41 CC	7	*
	8	* Author: Carlo Caione <[email protected]>
	9	*
	10	* This program is free software; you can redistribute it and/or modify
	11	* it under the terms of the GNU General Public License version 2 as
	12	* published by the Free Software Foundation.
	13	*/
	14
	15	#include <linux/err.h>
	16	#include <linux/i2c.h>
	17	#include <linux/interrupt.h>
	18	#include <linux/kernel.h>
	19	#include <linux/module.h>
	20	#include <linux/pm_runtime.h>
	21	#include <linux/regmap.h>
	22	#include <linux/slab.h>
	23	#include <linux/regulator/consumer.h>
	24	#include <linux/mfd/axp20x.h>
	25	#include <linux/mfd/core.h>
	26	#include <linux/of_device.h>
	27	#include <linux/of_irq.h>
af7e9069	28	#include <linux/acpi.h>
cfb61a41 CC	29
	30	#define AXP20X_OFF 0x80
	31
c31e858b	32	static const char * const axp20x_model_names[] = {
af7e9069 JP	33	"AXP202",
	34	"AXP209",
	35	"AXP288",
	36	};
	37
cfb61a41 CC	38	static const struct regmap_range axp20x_writeable_ranges[] = {
	39	regmap_reg_range(AXP20X_DATACACHE(0), AXP20X_IRQ5_STATE),
	40	regmap_reg_range(AXP20X_DCDC_MODE, AXP20X_FG_RES),
	41	};
	42
	43	static const struct regmap_range axp20x_volatile_ranges[] = {
	44	regmap_reg_range(AXP20X_IRQ1_EN, AXP20X_IRQ5_STATE),
	45	};
	46
	47	static const struct regmap_access_table axp20x_writeable_table = {
	48	.yes_ranges = axp20x_writeable_ranges,
	49	.n_yes_ranges = ARRAY_SIZE(axp20x_writeable_ranges),
	50	};
	51
	52	static const struct regmap_access_table axp20x_volatile_table = {
	53	.yes_ranges = axp20x_volatile_ranges,
	54	.n_yes_ranges = ARRAY_SIZE(axp20x_volatile_ranges),
	55	};
	56
af7e9069 JP	57	static const struct regmap_range axp288_writeable_ranges[] = {
	58	regmap_reg_range(AXP20X_DATACACHE(0), AXP20X_IRQ6_STATE),
	59	regmap_reg_range(AXP20X_DCDC_MODE, AXP288_FG_TUNE5),
	60	};
	61
	62	static const struct regmap_range axp288_volatile_ranges[] = {
	63	regmap_reg_range(AXP20X_IRQ1_EN, AXP20X_IPSOUT_V_HIGH_L),
	64	};
	65
	66	static const struct regmap_access_table axp288_writeable_table = {
	67	.yes_ranges = axp288_writeable_ranges,
	68	.n_yes_ranges = ARRAY_SIZE(axp288_writeable_ranges),
	69	};
	70
	71	static const struct regmap_access_table axp288_volatile_table = {
	72	.yes_ranges = axp288_volatile_ranges,
	73	.n_yes_ranges = ARRAY_SIZE(axp288_volatile_ranges),
	74	};
	75
cfb61a41 CC	76	static struct resource axp20x_pek_resources[] = {
	77	{
	78	.name = "PEK_DBR",
	79	.start = AXP20X_IRQ_PEK_RIS_EDGE,
	80	.end = AXP20X_IRQ_PEK_RIS_EDGE,
	81	.flags = IORESOURCE_IRQ,
	82	}, {
	83	.name = "PEK_DBF",
	84	.start = AXP20X_IRQ_PEK_FAL_EDGE,
	85	.end = AXP20X_IRQ_PEK_FAL_EDGE,
	86	.flags = IORESOURCE_IRQ,
	87	},
	88	};
	89
d6387874	90	static struct resource axp288_fuel_gauge_resources[] = {
af7e9069 JP	91	{
	92	.start = AXP288_IRQ_QWBTU,
	93	.end = AXP288_IRQ_QWBTU,
	94	.flags = IORESOURCE_IRQ,
	95	},
	96	{
	97	.start = AXP288_IRQ_WBTU,
	98	.end = AXP288_IRQ_WBTU,
	99	.flags = IORESOURCE_IRQ,
	100	},
	101	{
	102	.start = AXP288_IRQ_QWBTO,
	103	.end = AXP288_IRQ_QWBTO,
	104	.flags = IORESOURCE_IRQ,
	105	},
	106	{
	107	.start = AXP288_IRQ_WBTO,
	108	.end = AXP288_IRQ_WBTO,
	109	.flags = IORESOURCE_IRQ,
	110	},
	111	{
	112	.start = AXP288_IRQ_WL2,
	113	.end = AXP288_IRQ_WL2,
	114	.flags = IORESOURCE_IRQ,
	115	},
	116	{
	117	.start = AXP288_IRQ_WL1,
	118	.end = AXP288_IRQ_WL1,
	119	.flags = IORESOURCE_IRQ,
	120	},
	121	};
	122
cfb61a41 CC	123	static const struct regmap_config axp20x_regmap_config = {
	124	.reg_bits = 8,
	125	.val_bits = 8,
	126	.wr_table = &axp20x_writeable_table,
	127	.volatile_table = &axp20x_volatile_table,
	128	.max_register = AXP20X_FG_RES,
	129	.cache_type = REGCACHE_RBTREE,
	130	};
	131
af7e9069 JP	132	static const struct regmap_config axp288_regmap_config = {
	133	.reg_bits = 8,
	134	.val_bits = 8,
	135	.wr_table = &axp288_writeable_table,
	136	.volatile_table = &axp288_volatile_table,
	137	.max_register = AXP288_FG_TUNE5,
	138	.cache_type = REGCACHE_RBTREE,
	139	};
	140
	141	#define INIT_REGMAP_IRQ(_variant, _irq, _off, _mask) \
	142	[_variant##_IRQ_##_irq] = { .reg_offset = (_off), .mask = BIT(_mask) }
cfb61a41 CC	143
cfb61a41 CC	144	static const struct regmap_irq axp20x_regmap_irqs[] = {
af7e9069 JP	145	INIT_REGMAP_IRQ(AXP20X, ACIN_OVER_V, 0, 7),
	146	INIT_REGMAP_IRQ(AXP20X, ACIN_PLUGIN, 0, 6),
	147	INIT_REGMAP_IRQ(AXP20X, ACIN_REMOVAL, 0, 5),
	148	INIT_REGMAP_IRQ(AXP20X, VBUS_OVER_V, 0, 4),
	149	INIT_REGMAP_IRQ(AXP20X, VBUS_PLUGIN, 0, 3),
	150	INIT_REGMAP_IRQ(AXP20X, VBUS_REMOVAL, 0, 2),
	151	INIT_REGMAP_IRQ(AXP20X, VBUS_V_LOW, 0, 1),
	152	INIT_REGMAP_IRQ(AXP20X, BATT_PLUGIN, 1, 7),
	153	INIT_REGMAP_IRQ(AXP20X, BATT_REMOVAL, 1, 6),
	154	INIT_REGMAP_IRQ(AXP20X, BATT_ENT_ACT_MODE, 1, 5),
	155	INIT_REGMAP_IRQ(AXP20X, BATT_EXIT_ACT_MODE, 1, 4),
	156	INIT_REGMAP_IRQ(AXP20X, CHARG, 1, 3),
	157	INIT_REGMAP_IRQ(AXP20X, CHARG_DONE, 1, 2),
	158	INIT_REGMAP_IRQ(AXP20X, BATT_TEMP_HIGH, 1, 1),
	159	INIT_REGMAP_IRQ(AXP20X, BATT_TEMP_LOW, 1, 0),
	160	INIT_REGMAP_IRQ(AXP20X, DIE_TEMP_HIGH, 2, 7),
	161	INIT_REGMAP_IRQ(AXP20X, CHARG_I_LOW, 2, 6),
	162	INIT_REGMAP_IRQ(AXP20X, DCDC1_V_LONG, 2, 5),
	163	INIT_REGMAP_IRQ(AXP20X, DCDC2_V_LONG, 2, 4),
	164	INIT_REGMAP_IRQ(AXP20X, DCDC3_V_LONG, 2, 3),
	165	INIT_REGMAP_IRQ(AXP20X, PEK_SHORT, 2, 1),
	166	INIT_REGMAP_IRQ(AXP20X, PEK_LONG, 2, 0),
	167	INIT_REGMAP_IRQ(AXP20X, N_OE_PWR_ON, 3, 7),
	168	INIT_REGMAP_IRQ(AXP20X, N_OE_PWR_OFF, 3, 6),
	169	INIT_REGMAP_IRQ(AXP20X, VBUS_VALID, 3, 5),
	170	INIT_REGMAP_IRQ(AXP20X, VBUS_NOT_VALID, 3, 4),
	171	INIT_REGMAP_IRQ(AXP20X, VBUS_SESS_VALID, 3, 3),
	172	INIT_REGMAP_IRQ(AXP20X, VBUS_SESS_END, 3, 2),
	173	INIT_REGMAP_IRQ(AXP20X, LOW_PWR_LVL1, 3, 1),
	174	INIT_REGMAP_IRQ(AXP20X, LOW_PWR_LVL2, 3, 0),
	175	INIT_REGMAP_IRQ(AXP20X, TIMER, 4, 7),
	176	INIT_REGMAP_IRQ(AXP20X, PEK_RIS_EDGE, 4, 6),
	177	INIT_REGMAP_IRQ(AXP20X, PEK_FAL_EDGE, 4, 5),
	178	INIT_REGMAP_IRQ(AXP20X, GPIO3_INPUT, 4, 3),
	179	INIT_REGMAP_IRQ(AXP20X, GPIO2_INPUT, 4, 2),
	180	INIT_REGMAP_IRQ(AXP20X, GPIO1_INPUT, 4, 1),
	181	INIT_REGMAP_IRQ(AXP20X, GPIO0_INPUT, 4, 0),
	182	};
	183
	184	/* some IRQs are compatible with axp20x models */
	185	static const struct regmap_irq axp288_regmap_irqs[] = {
ff3bbc5c JP	186	INIT_REGMAP_IRQ(AXP288, VBUS_FALL, 0, 2),
	187	INIT_REGMAP_IRQ(AXP288, VBUS_RISE, 0, 3),
	188	INIT_REGMAP_IRQ(AXP288, OV, 0, 4),
af7e9069	189
ff3bbc5c JP	190	INIT_REGMAP_IRQ(AXP288, DONE, 1, 2),
ff3bbc5c JP	191	INIT_REGMAP_IRQ(AXP288, CHARGING, 1, 3),
af7e9069 JP	192	INIT_REGMAP_IRQ(AXP288, SAFE_QUIT, 1, 4),
af7e9069 JP	193	INIT_REGMAP_IRQ(AXP288, SAFE_ENTER, 1, 5),
ff3bbc5c JP	194	INIT_REGMAP_IRQ(AXP288, ABSENT, 1, 6),
ff3bbc5c JP	195	INIT_REGMAP_IRQ(AXP288, APPEND, 1, 7),
af7e9069 JP	196
	197	INIT_REGMAP_IRQ(AXP288, QWBTU, 2, 0),
	198	INIT_REGMAP_IRQ(AXP288, WBTU, 2, 1),
	199	INIT_REGMAP_IRQ(AXP288, QWBTO, 2, 2),
ff3bbc5c	200	INIT_REGMAP_IRQ(AXP288, WBTO, 2, 3),
af7e9069 JP	201	INIT_REGMAP_IRQ(AXP288, QCBTU, 2, 4),
	202	INIT_REGMAP_IRQ(AXP288, CBTU, 2, 5),
	203	INIT_REGMAP_IRQ(AXP288, QCBTO, 2, 6),
	204	INIT_REGMAP_IRQ(AXP288, CBTO, 2, 7),
	205
	206	INIT_REGMAP_IRQ(AXP288, WL2, 3, 0),
	207	INIT_REGMAP_IRQ(AXP288, WL1, 3, 1),
	208	INIT_REGMAP_IRQ(AXP288, GPADC, 3, 2),
	209	INIT_REGMAP_IRQ(AXP288, OT, 3, 7),
	210
	211	INIT_REGMAP_IRQ(AXP288, GPIO0, 4, 0),
	212	INIT_REGMAP_IRQ(AXP288, GPIO1, 4, 1),
	213	INIT_REGMAP_IRQ(AXP288, POKO, 4, 2),
	214	INIT_REGMAP_IRQ(AXP288, POKL, 4, 3),
	215	INIT_REGMAP_IRQ(AXP288, POKS, 4, 4),
	216	INIT_REGMAP_IRQ(AXP288, POKN, 4, 5),
	217	INIT_REGMAP_IRQ(AXP288, POKP, 4, 6),
ff3bbc5c	218	INIT_REGMAP_IRQ(AXP288, TIMER, 4, 7),
af7e9069 JP	219
	220	INIT_REGMAP_IRQ(AXP288, MV_CHNG, 5, 0),
	221	INIT_REGMAP_IRQ(AXP288, BC_USB_CHNG, 5, 1),
cfb61a41 CC	222	};
	223
	224	static const struct of_device_id axp20x_of_match[] = {
	225	{ .compatible = "x-powers,axp202", .data = (void *) AXP202_ID },
	226	{ .compatible = "x-powers,axp209", .data = (void *) AXP209_ID },
	227	{ },
	228	};
	229	MODULE_DEVICE_TABLE(of, axp20x_of_match);
	230
	231	/*
	232	* This is useless for OF-enabled devices, but it is needed by I2C subsystem
	233	*/
	234	static const struct i2c_device_id axp20x_i2c_id[] = {
	235	{ },
	236	};
	237	MODULE_DEVICE_TABLE(i2c, axp20x_i2c_id);
	238
0e50e926	239	static const struct acpi_device_id axp20x_acpi_match[] = {
af7e9069 JP	240	{
	241	.id = "INT33F4",
	242	.driver_data = AXP288_ID,
	243	},
	244	{ },
	245	};
	246	MODULE_DEVICE_TABLE(acpi, axp20x_acpi_match);
	247
cfb61a41 CC	248	static const struct regmap_irq_chip axp20x_regmap_irq_chip = {
	249	.name = "axp20x_irq_chip",
	250	.status_base = AXP20X_IRQ1_STATE,
	251	.ack_base = AXP20X_IRQ1_STATE,
	252	.mask_base = AXP20X_IRQ1_EN,
af7e9069 JP	253	.mask_invert = true,
af7e9069 JP	254	.init_ack_masked = true,
cfb61a41 CC	255	.irqs = axp20x_regmap_irqs,
cfb61a41 CC	256	.num_irqs = ARRAY_SIZE(axp20x_regmap_irqs),
af7e9069 JP	257	.num_regs = 5,
	258
	259	};
	260
	261	static const struct regmap_irq_chip axp288_regmap_irq_chip = {
	262	.name = "axp288_irq_chip",
	263	.status_base = AXP20X_IRQ1_STATE,
	264	.ack_base = AXP20X_IRQ1_STATE,
	265	.mask_base = AXP20X_IRQ1_EN,
cfb61a41 CC	266	.mask_invert = true,
cfb61a41 CC	267	.init_ack_masked = true,
af7e9069 JP	268	.irqs = axp288_regmap_irqs,
	269	.num_irqs = ARRAY_SIZE(axp288_regmap_irqs),
	270	.num_regs = 6,
	271
cfb61a41 CC	272	};
cfb61a41 CC	273
cfb61a41 CC	274	static struct mfd_cell axp20x_cells[] = {
	275	{
	276	.name = "axp20x-pek",
	277	.num_resources = ARRAY_SIZE(axp20x_pek_resources),
	278	.resources = axp20x_pek_resources,
	279	}, {
	280	.name = "axp20x-regulator",
cfb61a41 CC	281	},
	282	};
	283
af7e9069 JP	284	static struct resource axp288_adc_resources[] = {
	285	{
	286	.name = "GPADC",
	287	.start = AXP288_IRQ_GPADC,
	288	.end = AXP288_IRQ_GPADC,
	289	.flags = IORESOURCE_IRQ,
	290	},
	291	};
	292
bdb01f78 RP	293	static struct resource axp288_extcon_resources[] = {
	294	{
	295	.start = AXP288_IRQ_VBUS_FALL,
	296	.end = AXP288_IRQ_VBUS_FALL,
	297	.flags = IORESOURCE_IRQ,
	298	},
	299	{
	300	.start = AXP288_IRQ_VBUS_RISE,
	301	.end = AXP288_IRQ_VBUS_RISE,
	302	.flags = IORESOURCE_IRQ,
	303	},
	304	{
	305	.start = AXP288_IRQ_MV_CHNG,
	306	.end = AXP288_IRQ_MV_CHNG,
	307	.flags = IORESOURCE_IRQ,
	308	},
	309	{
	310	.start = AXP288_IRQ_BC_USB_CHNG,
	311	.end = AXP288_IRQ_BC_USB_CHNG,
	312	.flags = IORESOURCE_IRQ,
	313	},
	314	};
	315
af7e9069 JP	316	static struct resource axp288_charger_resources[] = {
	317	{
	318	.start = AXP288_IRQ_OV,
	319	.end = AXP288_IRQ_OV,
	320	.flags = IORESOURCE_IRQ,
	321	},
	322	{
	323	.start = AXP288_IRQ_DONE,
	324	.end = AXP288_IRQ_DONE,
	325	.flags = IORESOURCE_IRQ,
	326	},
	327	{
	328	.start = AXP288_IRQ_CHARGING,
	329	.end = AXP288_IRQ_CHARGING,
	330	.flags = IORESOURCE_IRQ,
	331	},
	332	{
	333	.start = AXP288_IRQ_SAFE_QUIT,
	334	.end = AXP288_IRQ_SAFE_QUIT,
	335	.flags = IORESOURCE_IRQ,
	336	},
	337	{
	338	.start = AXP288_IRQ_SAFE_ENTER,
	339	.end = AXP288_IRQ_SAFE_ENTER,
	340	.flags = IORESOURCE_IRQ,
	341	},
	342	{
	343	.start = AXP288_IRQ_QCBTU,
	344	.end = AXP288_IRQ_QCBTU,
	345	.flags = IORESOURCE_IRQ,
	346	},
	347	{
	348	.start = AXP288_IRQ_CBTU,
	349	.end = AXP288_IRQ_CBTU,
	350	.flags = IORESOURCE_IRQ,
	351	},
	352	{
	353	.start = AXP288_IRQ_QCBTO,
	354	.end = AXP288_IRQ_QCBTO,
	355	.flags = IORESOURCE_IRQ,
	356	},
	357	{
	358	.start = AXP288_IRQ_CBTO,
	359	.end = AXP288_IRQ_CBTO,
	360	.flags = IORESOURCE_IRQ,
	361	},
	362	};
	363
	364	static struct mfd_cell axp288_cells[] = {
	365	{
	366	.name = "axp288_adc",
	367	.num_resources = ARRAY_SIZE(axp288_adc_resources),
	368	.resources = axp288_adc_resources,
	369	},
bdb01f78 RP	370	{
	371	.name = "axp288_extcon",
	372	.num_resources = ARRAY_SIZE(axp288_extcon_resources),
	373	.resources = axp288_extcon_resources,
	374	},
af7e9069 JP	375	{
	376	.name = "axp288_charger",
	377	.num_resources = ARRAY_SIZE(axp288_charger_resources),
	378	.resources = axp288_charger_resources,
	379	},
	380	{
d6387874 TB	381	.name = "axp288_fuel_gauge",
	382	.num_resources = ARRAY_SIZE(axp288_fuel_gauge_resources),
	383	.resources = axp288_fuel_gauge_resources,
af7e9069	384	},
d8139f63 AL	385	{
	386	.name = "axp288_pmic_acpi",
	387	},
af7e9069 JP	388	};
af7e9069 JP	389
cfb61a41 CC	390	static struct axp20x_dev *axp20x_pm_power_off;
	391	static void axp20x_power_off(void)
	392	{
af7e9069 JP	393	if (axp20x_pm_power_off->variant == AXP288_ID)
	394	return;
	395
cfb61a41 CC	396	regmap_write(axp20x_pm_power_off->regmap, AXP20X_OFF_CTRL,
	397	AXP20X_OFF);
	398	}
	399
af7e9069 JP	400	static int axp20x_match_device(struct axp20x_dev axp20x, struct device dev)
	401	{
	402	const struct acpi_device_id *acpi_id;
	403	const struct of_device_id *of_id;
	404
	405	if (dev->of_node) {
	406	of_id = of_match_device(axp20x_of_match, dev);
	407	if (!of_id) {
	408	dev_err(dev, "Unable to match OF ID\n");
	409	return -ENODEV;
	410	}
	411	axp20x->variant = (long) of_id->data;
	412	} else {
	413	acpi_id = acpi_match_device(dev->driver->acpi_match_table, dev);
	414	if (!acpi_id \|\| !acpi_id->driver_data) {
	415	dev_err(dev, "Unable to match ACPI ID and data\n");
	416	return -ENODEV;
	417	}
	418	axp20x->variant = (long) acpi_id->driver_data;
	419	}
	420
	421	switch (axp20x->variant) {
	422	case AXP202_ID:
	423	case AXP209_ID:
	424	axp20x->nr_cells = ARRAY_SIZE(axp20x_cells);
	425	axp20x->cells = axp20x_cells;
	426	axp20x->regmap_cfg = &axp20x_regmap_config;
	427	axp20x->regmap_irq_chip = &axp20x_regmap_irq_chip;
	428	break;
	429	case AXP288_ID:
	430	axp20x->cells = axp288_cells;
	431	axp20x->nr_cells = ARRAY_SIZE(axp288_cells);
	432	axp20x->regmap_cfg = &axp288_regmap_config;
	433	axp20x->regmap_irq_chip = &axp288_regmap_irq_chip;
	434	break;
	435	default:
	436	dev_err(dev, "unsupported AXP20X ID %lu\n", axp20x->variant);
	437	return -EINVAL;
	438	}
	439	dev_info(dev, "AXP20x variant %s found\n",
	440	axp20x_model_names[axp20x->variant]);
	441
	442	return 0;
	443	}
	444
cfb61a41 CC	445	static int axp20x_i2c_probe(struct i2c_client *i2c,
	446	const struct i2c_device_id *id)
	447	{
	448	struct axp20x_dev *axp20x;
cfb61a41 CC	449	int ret;
	450
	451	axp20x = devm_kzalloc(&i2c->dev, sizeof(*axp20x), GFP_KERNEL);
	452	if (!axp20x)
	453	return -ENOMEM;
	454
af7e9069 JP	455	ret = axp20x_match_device(axp20x, &i2c->dev);
	456	if (ret)
	457	return ret;
cfb61a41 CC	458
	459	axp20x->i2c_client = i2c;
	460	axp20x->dev = &i2c->dev;
	461	dev_set_drvdata(axp20x->dev, axp20x);
	462
af7e9069	463	axp20x->regmap = devm_regmap_init_i2c(i2c, axp20x->regmap_cfg);
cfb61a41 CC	464	if (IS_ERR(axp20x->regmap)) {
	465	ret = PTR_ERR(axp20x->regmap);
	466	dev_err(&i2c->dev, "regmap init failed: %d\n", ret);
	467	return ret;
	468	}
	469
	470	ret = regmap_add_irq_chip(axp20x->regmap, i2c->irq,
	471	IRQF_ONESHOT \| IRQF_SHARED, -1,
af7e9069	472	axp20x->regmap_irq_chip,
cfb61a41 CC	473	&axp20x->regmap_irqc);
	474	if (ret) {
	475	dev_err(&i2c->dev, "failed to add irq chip: %d\n", ret);
	476	return ret;
	477	}
	478
af7e9069 JP	479	ret = mfd_add_devices(axp20x->dev, -1, axp20x->cells,
af7e9069 JP	480	axp20x->nr_cells, NULL, 0, NULL);
cfb61a41 CC	481
	482	if (ret) {
	483	dev_err(&i2c->dev, "failed to add MFD devices: %d\n", ret);
	484	regmap_del_irq_chip(i2c->irq, axp20x->regmap_irqc);
	485	return ret;
	486	}
	487
	488	if (!pm_power_off) {
	489	axp20x_pm_power_off = axp20x;
	490	pm_power_off = axp20x_power_off;
	491	}
	492
	493	dev_info(&i2c->dev, "AXP20X driver loaded\n");
	494
	495	return 0;
	496	}
	497
	498	static int axp20x_i2c_remove(struct i2c_client *i2c)
	499	{
	500	struct axp20x_dev *axp20x = i2c_get_clientdata(i2c);
	501
	502	if (axp20x == axp20x_pm_power_off) {
	503	axp20x_pm_power_off = NULL;
	504	pm_power_off = NULL;
	505	}
	506
	507	mfd_remove_devices(axp20x->dev);
	508	regmap_del_irq_chip(axp20x->i2c_client->irq, axp20x->regmap_irqc);
	509
	510	return 0;
	511	}
	512
	513	static struct i2c_driver axp20x_i2c_driver = {
	514	.driver = {
	515	.name = "axp20x",
	516	.owner = THIS_MODULE,
	517	.of_match_table = of_match_ptr(axp20x_of_match),
af7e9069	518	.acpi_match_table = ACPI_PTR(axp20x_acpi_match),
cfb61a41 CC	519	},
	520	.probe = axp20x_i2c_probe,
	521	.remove = axp20x_i2c_remove,
	522	.id_table = axp20x_i2c_id,
	523	};
	524
	525	module_i2c_driver(axp20x_i2c_driver);
	526
	527	MODULE_DESCRIPTION("PMIC MFD core driver for AXP20X");
	528	MODULE_AUTHOR("Carlo Caione <[email protected]>");
	529	MODULE_LICENSE("GPL");