[linux-2.6-block.git] / drivers / regulator / act8865-regulator.c

// SPDX-License-Identifier: GPL-2.0-or-later
/*
 * act8865-regulator.c - Voltage regulation for active-semi ACT88xx PMUs
 *
 * http://www.active-semi.com/products/power-management-units/act88xx/
 *
 * Copyright (C) 2013 Atmel Corporation
 */

#include <linux/module.h>
#include <linux/init.h>
#include <linux/i2c.h>
#include <linux/err.h>
#include <linux/platform_device.h>
#include <linux/regulator/driver.h>
#include <linux/regulator/act8865.h>
#include <linux/of.h>
#include <linux/of_device.h>
#include <linux/regulator/of_regulator.h>
#include <linux/regmap.h>

/*
 * ACT8600 Global Register Map.
 */
#define ACT8600_SYS_MODE	0x00
#define ACT8600_SYS_CTRL	0x01
#define ACT8600_DCDC1_VSET	0x10
#define ACT8600_DCDC1_CTRL	0x12
#define ACT8600_DCDC2_VSET	0x20
#define ACT8600_DCDC2_CTRL	0x22
#define ACT8600_DCDC3_VSET	0x30
#define ACT8600_DCDC3_CTRL	0x32
#define ACT8600_SUDCDC4_VSET	0x40
#define ACT8600_SUDCDC4_CTRL	0x41
#define ACT8600_LDO5_VSET	0x50
#define ACT8600_LDO5_CTRL	0x51
#define ACT8600_LDO6_VSET	0x60
#define ACT8600_LDO6_CTRL	0x61
#define ACT8600_LDO7_VSET	0x70
#define ACT8600_LDO7_CTRL	0x71
#define ACT8600_LDO8_VSET	0x80
#define ACT8600_LDO8_CTRL	0x81
#define ACT8600_LDO910_CTRL	0x91
#define ACT8600_APCH0		0xA1
#define ACT8600_APCH1		0xA8
#define ACT8600_APCH2		0xA9
#define ACT8600_APCH_STAT	0xAA
#define ACT8600_OTG0		0xB0
#define ACT8600_OTG1		0xB2

/*
 * ACT8846 Global Register Map.
 */
#define	ACT8846_SYS0		0x00
#define	ACT8846_SYS1		0x01
#define	ACT8846_REG1_VSET	0x10
#define	ACT8846_REG1_CTRL	0x12
#define	ACT8846_REG2_VSET0	0x20
#define	ACT8846_REG2_VSET1	0x21
#define	ACT8846_REG2_CTRL	0x22
#define	ACT8846_REG3_VSET0	0x30
#define	ACT8846_REG3_VSET1	0x31
#define	ACT8846_REG3_CTRL	0x32
#define	ACT8846_REG4_VSET0	0x40
#define	ACT8846_REG4_VSET1	0x41
#define	ACT8846_REG4_CTRL	0x42
#define	ACT8846_REG5_VSET	0x50
#define	ACT8846_REG5_CTRL	0x51
#define	ACT8846_REG6_VSET	0x58
#define	ACT8846_REG6_CTRL	0x59
#define	ACT8846_REG7_VSET	0x60
#define	ACT8846_REG7_CTRL	0x61
#define	ACT8846_REG8_VSET	0x68
#define	ACT8846_REG8_CTRL	0x69
#define	ACT8846_REG9_VSET	0x70
#define	ACT8846_REG9_CTRL	0x71
#define	ACT8846_REG10_VSET	0x80
#define	ACT8846_REG10_CTRL	0x81
#define	ACT8846_REG11_VSET	0x90
#define	ACT8846_REG11_CTRL	0x91
#define	ACT8846_REG12_VSET	0xa0
#define	ACT8846_REG12_CTRL	0xa1
#define	ACT8846_REG13_CTRL	0xb1
#define	ACT8846_GLB_OFF_CTRL	0xc3
#define	ACT8846_OFF_SYSMASK	0x18

/*
 * ACT8865 Global Register Map.
 */
#define	ACT8865_SYS_MODE	0x00
#define	ACT8865_SYS_CTRL	0x01
#define	ACT8865_DCDC1_VSET1	0x20
#define	ACT8865_DCDC1_VSET2	0x21
#define	ACT8865_DCDC1_CTRL	0x22
#define	ACT8865_DCDC2_VSET1	0x30
#define	ACT8865_DCDC2_VSET2	0x31
#define	ACT8865_DCDC2_CTRL	0x32
#define	ACT8865_DCDC3_VSET1	0x40
#define	ACT8865_DCDC3_VSET2	0x41
#define	ACT8865_DCDC3_CTRL	0x42
#define	ACT8865_LDO1_VSET	0x50
#define	ACT8865_LDO1_CTRL	0x51
#define	ACT8865_LDO2_VSET	0x54
#define	ACT8865_LDO2_CTRL	0x55
#define	ACT8865_LDO3_VSET	0x60
#define	ACT8865_LDO3_CTRL	0x61
#define	ACT8865_LDO4_VSET	0x64
#define	ACT8865_LDO4_CTRL	0x65
#define	ACT8865_MSTROFF		0x20

/*
 * Field Definitions.
 */
#define	ACT8865_ENA		0x80	/* ON - [7] */
#define	ACT8865_VSEL_MASK	0x3F	/* VSET - [5:0] */


#define ACT8600_LDO10_ENA		0x40	/* ON - [6] */
#define ACT8600_SUDCDC_VSEL_MASK	0xFF	/* SUDCDC VSET - [7:0] */

/*
 * ACT8865 voltage number
 */
#define	ACT8865_VOLTAGE_NUM	64
#define ACT8600_SUDCDC_VOLTAGE_NUM	256

struct act8865 {
	struct regmap *regmap;
	int off_reg;
	int off_mask;
};

static const struct regmap_range act8600_reg_ranges[] = {
	regmap_reg_range(0x00, 0x01),
	regmap_reg_range(0x10, 0x10),
	regmap_reg_range(0x12, 0x12),
	regmap_reg_range(0x20, 0x20),
	regmap_reg_range(0x22, 0x22),
	regmap_reg_range(0x30, 0x30),
	regmap_reg_range(0x32, 0x32),
	regmap_reg_range(0x40, 0x41),
	regmap_reg_range(0x50, 0x51),
	regmap_reg_range(0x60, 0x61),
	regmap_reg_range(0x70, 0x71),
	regmap_reg_range(0x80, 0x81),
	regmap_reg_range(0x91, 0x91),
	regmap_reg_range(0xA1, 0xA1),
	regmap_reg_range(0xA8, 0xAA),
	regmap_reg_range(0xB0, 0xB0),
	regmap_reg_range(0xB2, 0xB2),
	regmap_reg_range(0xC1, 0xC1),
};

static const struct regmap_range act8600_reg_ro_ranges[] = {
	regmap_reg_range(0xAA, 0xAA),
	regmap_reg_range(0xC1, 0xC1),
};

static const struct regmap_range act8600_reg_volatile_ranges[] = {
	regmap_reg_range(0x00, 0x01),
	regmap_reg_range(0x12, 0x12),
	regmap_reg_range(0x22, 0x22),
	regmap_reg_range(0x32, 0x32),
	regmap_reg_range(0x41, 0x41),
	regmap_reg_range(0x51, 0x51),
	regmap_reg_range(0x61, 0x61),
	regmap_reg_range(0x71, 0x71),
	regmap_reg_range(0x81, 0x81),
	regmap_reg_range(0xA8, 0xA8),
	regmap_reg_range(0xAA, 0xAA),
	regmap_reg_range(0xB0, 0xB0),
	regmap_reg_range(0xC1, 0xC1),
};

static const struct regmap_access_table act8600_write_ranges_table = {
	.yes_ranges	= act8600_reg_ranges,
	.n_yes_ranges	= ARRAY_SIZE(act8600_reg_ranges),
	.no_ranges	= act8600_reg_ro_ranges,
	.n_no_ranges	= ARRAY_SIZE(act8600_reg_ro_ranges),
};

static const struct regmap_access_table act8600_read_ranges_table = {
	.yes_ranges	= act8600_reg_ranges,
	.n_yes_ranges	= ARRAY_SIZE(act8600_reg_ranges),
};

static const struct regmap_access_table act8600_volatile_ranges_table = {
	.yes_ranges	= act8600_reg_volatile_ranges,
	.n_yes_ranges	= ARRAY_SIZE(act8600_reg_volatile_ranges),
};

static const struct regmap_config act8600_regmap_config = {
	.reg_bits = 8,
	.val_bits = 8,
	.max_register = 0xFF,
	.wr_table = &act8600_write_ranges_table,
	.rd_table = &act8600_read_ranges_table,
	.volatile_table = &act8600_volatile_ranges_table,
};

static const struct regmap_config act8865_regmap_config = {
	.reg_bits = 8,
	.val_bits = 8,
};

static const struct regulator_linear_range act8865_voltage_ranges[] = {
	REGULATOR_LINEAR_RANGE(600000, 0, 23, 25000),
	REGULATOR_LINEAR_RANGE(1200000, 24, 47, 50000),
	REGULATOR_LINEAR_RANGE(2400000, 48, 63, 100000),
};

static const struct regulator_linear_range act8600_sudcdc_voltage_ranges[] = {
	REGULATOR_LINEAR_RANGE(3000000, 0, 63, 0),
	REGULATOR_LINEAR_RANGE(3000000, 64, 159, 100000),
	REGULATOR_LINEAR_RANGE(12600000, 160, 191, 200000),
	REGULATOR_LINEAR_RANGE(19000000, 192, 247, 400000),
	REGULATOR_LINEAR_RANGE(41400000, 248, 255, 0),
};

static const struct regulator_ops act8865_ops = {
	.list_voltage		= regulator_list_voltage_linear_range,
	.map_voltage		= regulator_map_voltage_linear_range,
	.get_voltage_sel	= regulator_get_voltage_sel_regmap,
	.set_voltage_sel	= regulator_set_voltage_sel_regmap,
	.enable			= regulator_enable_regmap,
	.disable		= regulator_disable_regmap,
	.is_enabled		= regulator_is_enabled_regmap,
};

static const struct regulator_ops act8865_ldo_ops = {
	.enable			= regulator_enable_regmap,
	.disable		= regulator_disable_regmap,
	.is_enabled		= regulator_is_enabled_regmap,
};

#define ACT88xx_REG(_name, _family, _id, _vsel_reg, _supply)		\
	[_family##_ID_##_id] = {					\
		.name			= _name,			\
		.of_match		= of_match_ptr(_name),		\
		.regulators_node	= of_match_ptr("regulators"),	\
		.supply_name		= _supply,			\
		.id			= _family##_ID_##_id,		\
		.type			= REGULATOR_VOLTAGE,		\
		.ops			= &act8865_ops,			\
		.n_voltages		= ACT8865_VOLTAGE_NUM,		\
		.linear_ranges		= act8865_voltage_ranges,	\
		.n_linear_ranges	= ARRAY_SIZE(act8865_voltage_ranges), \
		.vsel_reg		= _family##_##_id##_##_vsel_reg, \
		.vsel_mask		= ACT8865_VSEL_MASK,		\
		.enable_reg		= _family##_##_id##_CTRL,	\
		.enable_mask		= ACT8865_ENA,			\
		.owner			= THIS_MODULE,			\
	}

static const struct regulator_desc act8600_regulators[] = {
	ACT88xx_REG("DCDC1", ACT8600, DCDC1, VSET, "vp1"),
	ACT88xx_REG("DCDC2", ACT8600, DCDC2, VSET, "vp2"),
	ACT88xx_REG("DCDC3", ACT8600, DCDC3, VSET, "vp3"),
	{
		.name = "SUDCDC_REG4",
		.of_match = of_match_ptr("SUDCDC_REG4"),
		.regulators_node = of_match_ptr("regulators"),
		.id = ACT8600_ID_SUDCDC4,
		.ops = &act8865_ops,
		.type = REGULATOR_VOLTAGE,
		.n_voltages = ACT8600_SUDCDC_VOLTAGE_NUM,
		.linear_ranges = act8600_sudcdc_voltage_ranges,
		.n_linear_ranges = ARRAY_SIZE(act8600_sudcdc_voltage_ranges),
		.vsel_reg = ACT8600_SUDCDC4_VSET,
		.vsel_mask = ACT8600_SUDCDC_VSEL_MASK,
		.enable_reg = ACT8600_SUDCDC4_CTRL,
		.enable_mask = ACT8865_ENA,
		.owner = THIS_MODULE,
	},
	ACT88xx_REG("LDO5", ACT8600, LDO5, VSET, "inl"),
	ACT88xx_REG("LDO6", ACT8600, LDO6, VSET, "inl"),
	ACT88xx_REG("LDO7", ACT8600, LDO7, VSET, "inl"),
	ACT88xx_REG("LDO8", ACT8600, LDO8, VSET, "inl"),
	{
		.name = "LDO_REG9",
		.of_match = of_match_ptr("LDO_REG9"),
		.regulators_node = of_match_ptr("regulators"),
		.id = ACT8600_ID_LDO9,
		.ops = &act8865_ldo_ops,
		.type = REGULATOR_VOLTAGE,
		.n_voltages = 1,
		.fixed_uV = 3300000,
		.enable_reg = ACT8600_LDO910_CTRL,
		.enable_mask = ACT8865_ENA,
		.owner = THIS_MODULE,
	},
	{
		.name = "LDO_REG10",
		.of_match = of_match_ptr("LDO_REG10"),
		.regulators_node = of_match_ptr("regulators"),
		.id = ACT8600_ID_LDO10,
		.ops = &act8865_ldo_ops,
		.type = REGULATOR_VOLTAGE,
		.n_voltages = 1,
		.fixed_uV = 1200000,
		.enable_reg = ACT8600_LDO910_CTRL,
		.enable_mask = ACT8600_LDO10_ENA,
		.owner = THIS_MODULE,
	},
};

static const struct regulator_desc act8846_regulators[] = {
	ACT88xx_REG("REG1", ACT8846, REG1, VSET, "vp1"),
	ACT88xx_REG("REG2", ACT8846, REG2, VSET0, "vp2"),
	ACT88xx_REG("REG3", ACT8846, REG3, VSET0, "vp3"),
	ACT88xx_REG("REG4", ACT8846, REG4, VSET0, "vp4"),
	ACT88xx_REG("REG5", ACT8846, REG5, VSET, "inl1"),
	ACT88xx_REG("REG6", ACT8846, REG6, VSET, "inl1"),
	ACT88xx_REG("REG7", ACT8846, REG7, VSET, "inl1"),
	ACT88xx_REG("REG8", ACT8846, REG8, VSET, "inl2"),
	ACT88xx_REG("REG9", ACT8846, REG9, VSET, "inl2"),
	ACT88xx_REG("REG10", ACT8846, REG10, VSET, "inl3"),
	ACT88xx_REG("REG11", ACT8846, REG11, VSET, "inl3"),
	ACT88xx_REG("REG12", ACT8846, REG12, VSET, "inl3"),
};

static const struct regulator_desc act8865_regulators[] = {
	ACT88xx_REG("DCDC_REG1", ACT8865, DCDC1, VSET1, "vp1"),
	ACT88xx_REG("DCDC_REG2", ACT8865, DCDC2, VSET1, "vp2"),
	ACT88xx_REG("DCDC_REG3", ACT8865, DCDC3, VSET1, "vp3"),
	ACT88xx_REG("LDO_REG1", ACT8865, LDO1, VSET, "inl45"),
	ACT88xx_REG("LDO_REG2", ACT8865, LDO2, VSET, "inl45"),
	ACT88xx_REG("LDO_REG3", ACT8865, LDO3, VSET, "inl67"),
	ACT88xx_REG("LDO_REG4", ACT8865, LDO4, VSET, "inl67"),
};

static const struct regulator_desc act8865_alt_regulators[] = {
	ACT88xx_REG("DCDC_REG1", ACT8865, DCDC1, VSET2, "vp1"),
	ACT88xx_REG("DCDC_REG2", ACT8865, DCDC2, VSET2, "vp2"),
	ACT88xx_REG("DCDC_REG3", ACT8865, DCDC3, VSET2, "vp3"),
	ACT88xx_REG("LDO_REG1", ACT8865, LDO1, VSET, "inl45"),
	ACT88xx_REG("LDO_REG2", ACT8865, LDO2, VSET, "inl45"),
	ACT88xx_REG("LDO_REG3", ACT8865, LDO3, VSET, "inl67"),
	ACT88xx_REG("LDO_REG4", ACT8865, LDO4, VSET, "inl67"),
};

#ifdef CONFIG_OF
static const struct of_device_id act8865_dt_ids[] = {
	{ .compatible = "active-semi,act8600", .data = (void *)ACT8600 },
	{ .compatible = "active-semi,act8846", .data = (void *)ACT8846 },
	{ .compatible = "active-semi,act8865", .data = (void *)ACT8865 },
	{ }
};
MODULE_DEVICE_TABLE(of, act8865_dt_ids);
#endif

static struct act8865_regulator_data *act8865_get_regulator_data(
		int id, struct act8865_platform_data *pdata)
{
	int i;

	for (i = 0; i < pdata->num_regulators; i++) {
		if (pdata->regulators[i].id == id)
			return &pdata->regulators[i];
	}

	return NULL;
}

static struct i2c_client *act8865_i2c_client;
static void act8865_power_off(void)
{
	struct act8865 *act8865;

	act8865 = i2c_get_clientdata(act8865_i2c_client);
	regmap_write(act8865->regmap, act8865->off_reg, act8865->off_mask);
	while (1);
}

static int act8865_pmic_probe(struct i2c_client *client,
			      const struct i2c_device_id *i2c_id)
{
	const struct regulator_desc *regulators;
	struct act8865_platform_data *pdata = NULL;
	struct device *dev = &client->dev;
	int i, ret, num_regulators;
	struct act8865 *act8865;
	const struct regmap_config *regmap_config;
	unsigned long type;
	int off_reg, off_mask;
	int voltage_select = 0;

	if (dev->of_node) {
		const struct of_device_id *id;

		id = of_match_device(of_match_ptr(act8865_dt_ids), dev);
		if (!id)
			return -ENODEV;

		type = (unsigned long) id->data;

		voltage_select = !!of_get_property(dev->of_node,
						   "active-semi,vsel-high",
						   NULL);
	} else {
		type = i2c_id->driver_data;
		pdata = dev_get_platdata(dev);
	}

	switch (type) {
	case ACT8600:
		regulators = act8600_regulators;
		num_regulators = ARRAY_SIZE(act8600_regulators);
		regmap_config = &act8600_regmap_config;
		off_reg = -1;
		off_mask = -1;
		break;
	case ACT8846:
		regulators = act8846_regulators;
		num_regulators = ARRAY_SIZE(act8846_regulators);
		regmap_config = &act8865_regmap_config;
		off_reg = ACT8846_GLB_OFF_CTRL;
		off_mask = ACT8846_OFF_SYSMASK;
		break;
	case ACT8865:
		if (voltage_select) {
			regulators = act8865_alt_regulators;
			num_regulators = ARRAY_SIZE(act8865_alt_regulators);
		} else {
			regulators = act8865_regulators;
			num_regulators = ARRAY_SIZE(act8865_regulators);
		}
		regmap_config = &act8865_regmap_config;
		off_reg = ACT8865_SYS_CTRL;
		off_mask = ACT8865_MSTROFF;
		break;
	default:
		dev_err(dev, "invalid device id %lu\n", type);
		return -EINVAL;
	}

	act8865 = devm_kzalloc(dev, sizeof(struct act8865), GFP_KERNEL);
	if (!act8865)
		return -ENOMEM;

	act8865->regmap = devm_regmap_init_i2c(client, regmap_config);
	if (IS_ERR(act8865->regmap)) {
		ret = PTR_ERR(act8865->regmap);
		dev_err(dev, "Failed to allocate register map: %d\n", ret);
		return ret;
	}

	if (of_device_is_system_power_controller(dev->of_node)) {
		if (!pm_power_off && (off_reg > 0)) {
			act8865_i2c_client = client;
			act8865->off_reg = off_reg;
			act8865->off_mask = off_mask;
			pm_power_off = act8865_power_off;
		} else {
			dev_err(dev, "Failed to set poweroff capability, already defined\n");
		}
	}

	/* Finally register devices */
	for (i = 0; i < num_regulators; i++) {
		const struct regulator_desc *desc = &regulators[i];
		struct regulator_config config = { };
		struct regulator_dev *rdev;

		config.dev = dev;
		config.driver_data = act8865;
		config.regmap = act8865->regmap;

		if (pdata) {
			struct act8865_regulator_data *rdata;

			rdata = act8865_get_regulator_data(desc->id, pdata);
			if (rdata) {
				config.init_data = rdata->init_data;
				config.of_node = rdata->of_node;
			}
		}

		rdev = devm_regulator_register(dev, desc, &config);
		if (IS_ERR(rdev)) {
			dev_err(dev, "failed to register %s\n", desc->name);
			return PTR_ERR(rdev);
		}
	}

	i2c_set_clientdata(client, act8865);

	return 0;
}

static const struct i2c_device_id act8865_ids[] = {
	{ .name = "act8600", .driver_data = ACT8600 },
	{ .name = "act8846", .driver_data = ACT8846 },
	{ .name = "act8865", .driver_data = ACT8865 },
	{ },
};
MODULE_DEVICE_TABLE(i2c, act8865_ids);

static struct i2c_driver act8865_pmic_driver = {
	.driver	= {
		.name	= "act8865",
	},
	.probe		= act8865_pmic_probe,
	.id_table	= act8865_ids,
};

module_i2c_driver(act8865_pmic_driver);

MODULE_DESCRIPTION("active-semi act88xx voltage regulator driver");
MODULE_AUTHOR("Wenyou Yang <wenyou.yang@atmel.com>");
MODULE_LICENSE("GPL v2");
Commit	Line	Data
c942fddf	1	// SPDX-License-Identifier: GPL-2.0-or-later
33036f48	2	/*
50a03e35 BG	3	* act8865-regulator.c - Voltage regulation for active-semi ACT88xx PMUs
	4	*
	5	* http://www.active-semi.com/products/power-management-units/act88xx/
33036f48 WY	6	*
33036f48 WY	7	* Copyright (C) 2013 Atmel Corporation
33036f48 WY	8	*/
	9
	10	#include <linux/module.h>
	11	#include <linux/init.h>
	12	#include <linux/i2c.h>
	13	#include <linux/err.h>
	14	#include <linux/platform_device.h>
	15	#include <linux/regulator/driver.h>
	16	#include <linux/regulator/act8865.h>
	17	#include <linux/of.h>
	18	#include <linux/of_device.h>
	19	#include <linux/regulator/of_regulator.h>
	20	#include <linux/regmap.h>
	21
df3a950e ZLK	22	/*
	23	* ACT8600 Global Register Map.
	24	*/
	25	#define ACT8600_SYS_MODE 0x00
	26	#define ACT8600_SYS_CTRL 0x01
	27	#define ACT8600_DCDC1_VSET 0x10
	28	#define ACT8600_DCDC1_CTRL 0x12
	29	#define ACT8600_DCDC2_VSET 0x20
	30	#define ACT8600_DCDC2_CTRL 0x22
	31	#define ACT8600_DCDC3_VSET 0x30
	32	#define ACT8600_DCDC3_CTRL 0x32
	33	#define ACT8600_SUDCDC4_VSET 0x40
	34	#define ACT8600_SUDCDC4_CTRL 0x41
	35	#define ACT8600_LDO5_VSET 0x50
	36	#define ACT8600_LDO5_CTRL 0x51
	37	#define ACT8600_LDO6_VSET 0x60
	38	#define ACT8600_LDO6_CTRL 0x61
	39	#define ACT8600_LDO7_VSET 0x70
	40	#define ACT8600_LDO7_CTRL 0x71
	41	#define ACT8600_LDO8_VSET 0x80
	42	#define ACT8600_LDO8_CTRL 0x81
	43	#define ACT8600_LDO910_CTRL 0x91
	44	#define ACT8600_APCH0 0xA1
	45	#define ACT8600_APCH1 0xA8
	46	#define ACT8600_APCH2 0xA9
	47	#define ACT8600_APCH_STAT 0xAA
	48	#define ACT8600_OTG0 0xB0
	49	#define ACT8600_OTG1 0xB2
	50
ac0c0ea8 BG	51	/*
	52	* ACT8846 Global Register Map.
	53	*/
	54	#define ACT8846_SYS0 0x00
	55	#define ACT8846_SYS1 0x01
	56	#define ACT8846_REG1_VSET 0x10
	57	#define ACT8846_REG1_CTRL 0x12
	58	#define ACT8846_REG2_VSET0 0x20
	59	#define ACT8846_REG2_VSET1 0x21
	60	#define ACT8846_REG2_CTRL 0x22
	61	#define ACT8846_REG3_VSET0 0x30
	62	#define ACT8846_REG3_VSET1 0x31
	63	#define ACT8846_REG3_CTRL 0x32
	64	#define ACT8846_REG4_VSET0 0x40
	65	#define ACT8846_REG4_VSET1 0x41
	66	#define ACT8846_REG4_CTRL 0x42
	67	#define ACT8846_REG5_VSET 0x50
	68	#define ACT8846_REG5_CTRL 0x51
	69	#define ACT8846_REG6_VSET 0x58
	70	#define ACT8846_REG6_CTRL 0x59
	71	#define ACT8846_REG7_VSET 0x60
	72	#define ACT8846_REG7_CTRL 0x61
	73	#define ACT8846_REG8_VSET 0x68
	74	#define ACT8846_REG8_CTRL 0x69
	75	#define ACT8846_REG9_VSET 0x70
	76	#define ACT8846_REG9_CTRL 0x71
	77	#define ACT8846_REG10_VSET 0x80
	78	#define ACT8846_REG10_CTRL 0x81
	79	#define ACT8846_REG11_VSET 0x90
	80	#define ACT8846_REG11_CTRL 0x91
	81	#define ACT8846_REG12_VSET 0xa0
	82	#define ACT8846_REG12_CTRL 0xa1
	83	#define ACT8846_REG13_CTRL 0xb1
2b17fa28 RP	84	#define ACT8846_GLB_OFF_CTRL 0xc3
2b17fa28 RP	85	#define ACT8846_OFF_SYSMASK 0x18
ac0c0ea8	86
33036f48 WY	87	/*
	88	* ACT8865 Global Register Map.
	89	*/
	90	#define ACT8865_SYS_MODE 0x00
	91	#define ACT8865_SYS_CTRL 0x01
	92	#define ACT8865_DCDC1_VSET1 0x20
	93	#define ACT8865_DCDC1_VSET2 0x21
	94	#define ACT8865_DCDC1_CTRL 0x22
	95	#define ACT8865_DCDC2_VSET1 0x30
	96	#define ACT8865_DCDC2_VSET2 0x31
	97	#define ACT8865_DCDC2_CTRL 0x32
	98	#define ACT8865_DCDC3_VSET1 0x40
	99	#define ACT8865_DCDC3_VSET2 0x41
	100	#define ACT8865_DCDC3_CTRL 0x42
	101	#define ACT8865_LDO1_VSET 0x50
	102	#define ACT8865_LDO1_CTRL 0x51
	103	#define ACT8865_LDO2_VSET 0x54
	104	#define ACT8865_LDO2_CTRL 0x55
	105	#define ACT8865_LDO3_VSET 0x60
	106	#define ACT8865_LDO3_CTRL 0x61
	107	#define ACT8865_LDO4_VSET 0x64
	108	#define ACT8865_LDO4_CTRL 0x65
2b17fa28	109	#define ACT8865_MSTROFF 0x20
33036f48 WY	110
	111	/*
	112	* Field Definitions.
	113	*/
	114	#define ACT8865_ENA 0x80 /* ON - [7] */
	115	#define ACT8865_VSEL_MASK 0x3F /* VSET - [5:0] */
	116
df3a950e ZLK	117
	118	#define ACT8600_LDO10_ENA 0x40 /* ON - [6] */
	119	#define ACT8600_SUDCDC_VSEL_MASK 0xFF /* SUDCDC VSET - [7:0] */
	120
33036f48 WY	121	/*
	122	* ACT8865 voltage number
	123	*/
	124	#define ACT8865_VOLTAGE_NUM 64
f01a7beb	125	#define ACT8600_SUDCDC_VOLTAGE_NUM 256
33036f48 WY	126
33036f48 WY	127	struct act8865 {
33036f48	128	struct regmap *regmap;
2b17fa28 RP	129	int off_reg;
2b17fa28 RP	130	int off_mask;
33036f48 WY	131	};
33036f48 WY	132
c5c9c2df MH	133	static const struct regmap_range act8600_reg_ranges[] = {
	134	regmap_reg_range(0x00, 0x01),
	135	regmap_reg_range(0x10, 0x10),
	136	regmap_reg_range(0x12, 0x12),
	137	regmap_reg_range(0x20, 0x20),
	138	regmap_reg_range(0x22, 0x22),
	139	regmap_reg_range(0x30, 0x30),
	140	regmap_reg_range(0x32, 0x32),
	141	regmap_reg_range(0x40, 0x41),
	142	regmap_reg_range(0x50, 0x51),
	143	regmap_reg_range(0x60, 0x61),
	144	regmap_reg_range(0x70, 0x71),
	145	regmap_reg_range(0x80, 0x81),
	146	regmap_reg_range(0x91, 0x91),
	147	regmap_reg_range(0xA1, 0xA1),
	148	regmap_reg_range(0xA8, 0xAA),
	149	regmap_reg_range(0xB0, 0xB0),
	150	regmap_reg_range(0xB2, 0xB2),
	151	regmap_reg_range(0xC1, 0xC1),
	152	};
	153
	154	static const struct regmap_range act8600_reg_ro_ranges[] = {
	155	regmap_reg_range(0xAA, 0xAA),
	156	regmap_reg_range(0xC1, 0xC1),
	157	};
	158
	159	static const struct regmap_range act8600_reg_volatile_ranges[] = {
	160	regmap_reg_range(0x00, 0x01),
	161	regmap_reg_range(0x12, 0x12),
	162	regmap_reg_range(0x22, 0x22),
	163	regmap_reg_range(0x32, 0x32),
	164	regmap_reg_range(0x41, 0x41),
	165	regmap_reg_range(0x51, 0x51),
	166	regmap_reg_range(0x61, 0x61),
	167	regmap_reg_range(0x71, 0x71),
	168	regmap_reg_range(0x81, 0x81),
	169	regmap_reg_range(0xA8, 0xA8),
	170	regmap_reg_range(0xAA, 0xAA),
	171	regmap_reg_range(0xB0, 0xB0),
	172	regmap_reg_range(0xC1, 0xC1),
	173	};
	174
	175	static const struct regmap_access_table act8600_write_ranges_table = {
	176	.yes_ranges = act8600_reg_ranges,
	177	.n_yes_ranges = ARRAY_SIZE(act8600_reg_ranges),
	178	.no_ranges = act8600_reg_ro_ranges,
	179	.n_no_ranges = ARRAY_SIZE(act8600_reg_ro_ranges),
	180	};
	181
	182	static const struct regmap_access_table act8600_read_ranges_table = {
	183	.yes_ranges = act8600_reg_ranges,
	184	.n_yes_ranges = ARRAY_SIZE(act8600_reg_ranges),
	185	};
	186
	187	static const struct regmap_access_table act8600_volatile_ranges_table = {
	188	.yes_ranges = act8600_reg_volatile_ranges,
	189	.n_yes_ranges = ARRAY_SIZE(act8600_reg_volatile_ranges),
	190	};
	191
	192	static const struct regmap_config act8600_regmap_config = {
	193	.reg_bits = 8,
	194	.val_bits = 8,
	195	.max_register = 0xFF,
	196	.wr_table = &act8600_write_ranges_table,
197	.rd_table = &act8600_read_ranges_table,
198	.volatile_table = &act8600_volatile_ranges_table,
199	};
200
33036f48 WY	201	static const struct regmap_config act8865_regmap_config = {
	202	.reg_bits = 8,
	203	.val_bits = 8,
	204	};
	205
50a03e35	206	static const struct regulator_linear_range act8865_voltage_ranges[] = {
33036f48 WY	207	REGULATOR_LINEAR_RANGE(600000, 0, 23, 25000),
	208	REGULATOR_LINEAR_RANGE(1200000, 24, 47, 50000),
	209	REGULATOR_LINEAR_RANGE(2400000, 48, 63, 100000),
	210	};
	211
df3a950e ZLK	212	static const struct regulator_linear_range act8600_sudcdc_voltage_ranges[] = {
	213	REGULATOR_LINEAR_RANGE(3000000, 0, 63, 0),
	214	REGULATOR_LINEAR_RANGE(3000000, 64, 159, 100000),
	215	REGULATOR_LINEAR_RANGE(12600000, 160, 191, 200000),
f01a7beb AL	216	REGULATOR_LINEAR_RANGE(19000000, 192, 247, 400000),
f01a7beb AL	217	REGULATOR_LINEAR_RANGE(41400000, 248, 255, 0),
df3a950e ZLK	218	};
df3a950e ZLK	219
7cae255d	220	static const struct regulator_ops act8865_ops = {
33036f48 WY	221	.list_voltage = regulator_list_voltage_linear_range,
	222	.map_voltage = regulator_map_voltage_linear_range,
	223	.get_voltage_sel = regulator_get_voltage_sel_regmap,
	224	.set_voltage_sel = regulator_set_voltage_sel_regmap,
	225	.enable = regulator_enable_regmap,
	226	.disable = regulator_disable_regmap,
	227	.is_enabled = regulator_is_enabled_regmap,
33036f48 WY	228	};
33036f48 WY	229
7cae255d	230	static const struct regulator_ops act8865_ldo_ops = {
df3a950e ZLK	231	.enable = regulator_enable_regmap,
	232	.disable = regulator_disable_regmap,
	233	.is_enabled = regulator_is_enabled_regmap,
	234	};
	235
c8b263cc	236	#define ACT88xx_REG(_name, _family, _id, _vsel_reg, _supply) \
50a03e35 BG	237	[_family##_ID_##_id] = { \
50a03e35 BG	238	.name = _name, \
253c9c79 AL	239	.of_match = of_match_ptr(_name), \
253c9c79 AL	240	.regulators_node = of_match_ptr("regulators"), \
c8b263cc	241	.supply_name = _supply, \
50a03e35 BG	242	.id = _family##_ID_##_id, \
	243	.type = REGULATOR_VOLTAGE, \
	244	.ops = &act8865_ops, \
	245	.n_voltages = ACT8865_VOLTAGE_NUM, \
	246	.linear_ranges = act8865_voltage_ranges, \
	247	.n_linear_ranges = ARRAY_SIZE(act8865_voltage_ranges), \
	248	.vsel_reg = _family##_##_id##_##_vsel_reg, \
	249	.vsel_mask = ACT8865_VSEL_MASK, \
	250	.enable_reg = _family##_##_id##_CTRL, \
	251	.enable_mask = ACT8865_ENA, \
	252	.owner = THIS_MODULE, \
	253	}
	254
df3a950e	255	static const struct regulator_desc act8600_regulators[] = {
c8b263cc HS	256	ACT88xx_REG("DCDC1", ACT8600, DCDC1, VSET, "vp1"),
	257	ACT88xx_REG("DCDC2", ACT8600, DCDC2, VSET, "vp2"),
	258	ACT88xx_REG("DCDC3", ACT8600, DCDC3, VSET, "vp3"),
df3a950e ZLK	259	{
df3a950e ZLK	260	.name = "SUDCDC_REG4",
253c9c79 AL	261	.of_match = of_match_ptr("SUDCDC_REG4"),
253c9c79 AL	262	.regulators_node = of_match_ptr("regulators"),
df3a950e ZLK	263	.id = ACT8600_ID_SUDCDC4,
	264	.ops = &act8865_ops,
	265	.type = REGULATOR_VOLTAGE,
	266	.n_voltages = ACT8600_SUDCDC_VOLTAGE_NUM,
	267	.linear_ranges = act8600_sudcdc_voltage_ranges,
	268	.n_linear_ranges = ARRAY_SIZE(act8600_sudcdc_voltage_ranges),
	269	.vsel_reg = ACT8600_SUDCDC4_VSET,
	270	.vsel_mask = ACT8600_SUDCDC_VSEL_MASK,
	271	.enable_reg = ACT8600_SUDCDC4_CTRL,
	272	.enable_mask = ACT8865_ENA,
	273	.owner = THIS_MODULE,
	274	},
c8b263cc HS	275	ACT88xx_REG("LDO5", ACT8600, LDO5, VSET, "inl"),
	276	ACT88xx_REG("LDO6", ACT8600, LDO6, VSET, "inl"),
	277	ACT88xx_REG("LDO7", ACT8600, LDO7, VSET, "inl"),
	278	ACT88xx_REG("LDO8", ACT8600, LDO8, VSET, "inl"),
df3a950e ZLK	279	{
df3a950e ZLK	280	.name = "LDO_REG9",
253c9c79 AL	281	.of_match = of_match_ptr("LDO_REG9"),
253c9c79 AL	282	.regulators_node = of_match_ptr("regulators"),
df3a950e ZLK	283	.id = ACT8600_ID_LDO9,
	284	.ops = &act8865_ldo_ops,
	285	.type = REGULATOR_VOLTAGE,
	286	.n_voltages = 1,
79b5d026	287	.fixed_uV = 3300000,
df3a950e ZLK	288	.enable_reg = ACT8600_LDO910_CTRL,
	289	.enable_mask = ACT8865_ENA,
	290	.owner = THIS_MODULE,
	291	},
	292	{
	293	.name = "LDO_REG10",
253c9c79 AL	294	.of_match = of_match_ptr("LDO_REG10"),
253c9c79 AL	295	.regulators_node = of_match_ptr("regulators"),
df3a950e ZLK	296	.id = ACT8600_ID_LDO10,
	297	.ops = &act8865_ldo_ops,
	298	.type = REGULATOR_VOLTAGE,
	299	.n_voltages = 1,
	300	.fixed_uV = 1200000,
	301	.enable_reg = ACT8600_LDO910_CTRL,
	302	.enable_mask = ACT8600_LDO10_ENA,
	303	.owner = THIS_MODULE,
	304	},
	305	};
	306
ac0c0ea8	307	static const struct regulator_desc act8846_regulators[] = {
c8b263cc HS	308	ACT88xx_REG("REG1", ACT8846, REG1, VSET, "vp1"),
	309	ACT88xx_REG("REG2", ACT8846, REG2, VSET0, "vp2"),
	310	ACT88xx_REG("REG3", ACT8846, REG3, VSET0, "vp3"),
	311	ACT88xx_REG("REG4", ACT8846, REG4, VSET0, "vp4"),
	312	ACT88xx_REG("REG5", ACT8846, REG5, VSET, "inl1"),
	313	ACT88xx_REG("REG6", ACT8846, REG6, VSET, "inl1"),
	314	ACT88xx_REG("REG7", ACT8846, REG7, VSET, "inl1"),
	315	ACT88xx_REG("REG8", ACT8846, REG8, VSET, "inl2"),
	316	ACT88xx_REG("REG9", ACT8846, REG9, VSET, "inl2"),
	317	ACT88xx_REG("REG10", ACT8846, REG10, VSET, "inl3"),
	318	ACT88xx_REG("REG11", ACT8846, REG11, VSET, "inl3"),
	319	ACT88xx_REG("REG12", ACT8846, REG12, VSET, "inl3"),
ac0c0ea8 BG	320	};
ac0c0ea8 BG	321
50a03e35	322	static const struct regulator_desc act8865_regulators[] = {
c8b263cc HS	323	ACT88xx_REG("DCDC_REG1", ACT8865, DCDC1, VSET1, "vp1"),
	324	ACT88xx_REG("DCDC_REG2", ACT8865, DCDC2, VSET1, "vp2"),
	325	ACT88xx_REG("DCDC_REG3", ACT8865, DCDC3, VSET1, "vp3"),
	326	ACT88xx_REG("LDO_REG1", ACT8865, LDO1, VSET, "inl45"),
	327	ACT88xx_REG("LDO_REG2", ACT8865, LDO2, VSET, "inl45"),
	328	ACT88xx_REG("LDO_REG3", ACT8865, LDO3, VSET, "inl67"),
	329	ACT88xx_REG("LDO_REG4", ACT8865, LDO4, VSET, "inl67"),
33036f48 WY	330	};
33036f48 WY	331
c86dc03e WY	332	static const struct regulator_desc act8865_alt_regulators[] = {
	333	ACT88xx_REG("DCDC_REG1", ACT8865, DCDC1, VSET2, "vp1"),
	334	ACT88xx_REG("DCDC_REG2", ACT8865, DCDC2, VSET2, "vp2"),
	335	ACT88xx_REG("DCDC_REG3", ACT8865, DCDC3, VSET2, "vp3"),
	336	ACT88xx_REG("LDO_REG1", ACT8865, LDO1, VSET, "inl45"),
	337	ACT88xx_REG("LDO_REG2", ACT8865, LDO2, VSET, "inl45"),
	338	ACT88xx_REG("LDO_REG3", ACT8865, LDO3, VSET, "inl67"),
	339	ACT88xx_REG("LDO_REG4", ACT8865, LDO4, VSET, "inl67"),
	340	};
	341
33036f48 WY	342	#ifdef CONFIG_OF
33036f48 WY	343	static const struct of_device_id act8865_dt_ids[] = {
df3a950e	344	{ .compatible = "active-semi,act8600", .data = (void *)ACT8600 },
ac0c0ea8	345	{ .compatible = "active-semi,act8846", .data = (void *)ACT8846 },
50a03e35	346	{ .compatible = "active-semi,act8865", .data = (void *)ACT8865 },
33036f48 WY	347	{ }
	348	};
	349	MODULE_DEVICE_TABLE(of, act8865_dt_ids);
33036f48 WY	350	#endif
33036f48 WY	351
005e4685 MH	352	static struct act8865_regulator_data *act8865_get_regulator_data(
005e4685 MH	353	int id, struct act8865_platform_data *pdata)
48a1e1b5 BG	354	{
	355	int i;
	356
48a1e1b5 BG	357	for (i = 0; i < pdata->num_regulators; i++) {
48a1e1b5 BG	358	if (pdata->regulators[i].id == id)
005e4685	359	return &pdata->regulators[i];
48a1e1b5 BG	360	}
	361
	362	return NULL;
	363	}
	364
2b17fa28 RP	365	static struct i2c_client *act8865_i2c_client;
	366	static void act8865_power_off(void)
	367	{
	368	struct act8865 *act8865;
	369
	370	act8865 = i2c_get_clientdata(act8865_i2c_client);
	371	regmap_write(act8865->regmap, act8865->off_reg, act8865->off_mask);
	372	while (1);
	373	}
	374
33036f48	375	static int act8865_pmic_probe(struct i2c_client *client,
50a03e35	376	const struct i2c_device_id *i2c_id)
33036f48	377	{
abea1bb0	378	const struct regulator_desc *regulators;
253c9c79	379	struct act8865_platform_data *pdata = NULL;
33036f48	380	struct device *dev = &client->dev;
50a03e35	381	int i, ret, num_regulators;
33036f48	382	struct act8865 *act8865;
c5c9c2df	383	const struct regmap_config *regmap_config;
50a03e35	384	unsigned long type;
2b17fa28	385	int off_reg, off_mask;
c86dc03e	386	int voltage_select = 0;
50a03e35	387
253c9c79	388	if (dev->of_node) {
33036f48	389	const struct of_device_id *id;
33036f48 WY	390
	391	id = of_match_device(of_match_ptr(act8865_dt_ids), dev);
	392	if (!id)
	393	return -ENODEV;
	394
50a03e35	395	type = (unsigned long) id->data;
c86dc03e WY	396
	397	voltage_select = !!of_get_property(dev->of_node,
	398	"active-semi,vsel-high",
	399	NULL);
50a03e35 BG	400	} else {
50a03e35 BG	401	type = i2c_id->driver_data;
253c9c79	402	pdata = dev_get_platdata(dev);
50a03e35 BG	403	}
	404
	405	switch (type) {
df3a950e ZLK	406	case ACT8600:
	407	regulators = act8600_regulators;
	408	num_regulators = ARRAY_SIZE(act8600_regulators);
c5c9c2df	409	regmap_config = &act8600_regmap_config;
df3a950e ZLK	410	off_reg = -1;
	411	off_mask = -1;
	412	break;
ac0c0ea8	413	case ACT8846:
ac0c0ea8 BG	414	regulators = act8846_regulators;
ac0c0ea8 BG	415	num_regulators = ARRAY_SIZE(act8846_regulators);
c5c9c2df	416	regmap_config = &act8865_regmap_config;
2b17fa28 RP	417	off_reg = ACT8846_GLB_OFF_CTRL;
2b17fa28 RP	418	off_mask = ACT8846_OFF_SYSMASK;
ac0c0ea8	419	break;
50a03e35	420	case ACT8865:
c86dc03e WY	421	if (voltage_select) {
	422	regulators = act8865_alt_regulators;
	423	num_regulators = ARRAY_SIZE(act8865_alt_regulators);
	424	} else {
	425	regulators = act8865_regulators;
	426	num_regulators = ARRAY_SIZE(act8865_regulators);
	427	}
c5c9c2df	428	regmap_config = &act8865_regmap_config;
2b17fa28 RP	429	off_reg = ACT8865_SYS_CTRL;
2b17fa28 RP	430	off_mask = ACT8865_MSTROFF;
50a03e35 BG	431	break;
	432	default:
	433	dev_err(dev, "invalid device id %lu\n", type);
	434	return -EINVAL;
	435	}
	436
f1de2c2f	437	act8865 = devm_kzalloc(dev, sizeof(struct act8865), GFP_KERNEL);
33036f48 WY	438	if (!act8865)
	439	return -ENOMEM;
	440
c5c9c2df	441	act8865->regmap = devm_regmap_init_i2c(client, regmap_config);
33036f48	442	if (IS_ERR(act8865->regmap)) {
40d3bc19	443	ret = PTR_ERR(act8865->regmap);
de14ba67	444	dev_err(dev, "Failed to allocate register map: %d\n", ret);
40d3bc19	445	return ret;
33036f48 WY	446	}
33036f48 WY	447
8f73110f	448	if (of_device_is_system_power_controller(dev->of_node)) {
df3a950e	449	if (!pm_power_off && (off_reg > 0)) {
2b17fa28 RP	450	act8865_i2c_client = client;
	451	act8865->off_reg = off_reg;
	452	act8865->off_mask = off_mask;
	453	pm_power_off = act8865_power_off;
	454	} else {
	455	dev_err(dev, "Failed to set poweroff capability, already defined\n");
	456	}
	457	}
	458
33036f48	459	/* Finally register devices */
50a03e35 BG	460	for (i = 0; i < num_regulators; i++) {
	461	const struct regulator_desc *desc = &regulators[i];
	462	struct regulator_config config = { };
	463	struct regulator_dev *rdev;
33036f48 WY	464
33036f48 WY	465	config.dev = dev;
33036f48 WY	466	config.driver_data = act8865;
	467	config.regmap = act8865->regmap;
	468
253c9c79 AL	469	if (pdata) {
	470	struct act8865_regulator_data *rdata;
	471
	472	rdata = act8865_get_regulator_data(desc->id, pdata);
	473	if (rdata) {
	474	config.init_data = rdata->init_data;
	475	config.of_node = rdata->of_node;
	476	}
005e4685 MH	477	}
005e4685 MH	478
de14ba67	479	rdev = devm_regulator_register(dev, desc, &config);
fb8eb454	480	if (IS_ERR(rdev)) {
48a1e1b5	481	dev_err(dev, "failed to register %s\n", desc->name);
fb8eb454	482	return PTR_ERR(rdev);
33036f48 WY	483	}
	484	}
	485
	486	i2c_set_clientdata(client, act8865);
	487
	488	return 0;
	489	}
	490
33036f48	491	static const struct i2c_device_id act8865_ids[] = {
df3a950e	492	{ .name = "act8600", .driver_data = ACT8600 },
ac0c0ea8	493	{ .name = "act8846", .driver_data = ACT8846 },
50a03e35	494	{ .name = "act8865", .driver_data = ACT8865 },
33036f48 WY	495	{ },
	496	};
	497	MODULE_DEVICE_TABLE(i2c, act8865_ids);
	498
	499	static struct i2c_driver act8865_pmic_driver = {
	500	.driver = {
	501	.name = "act8865",
33036f48 WY	502	},
33036f48 WY	503	.probe = act8865_pmic_probe,
33036f48 WY	504	.id_table = act8865_ids,
	505	};
	506
	507	module_i2c_driver(act8865_pmic_driver);
	508
50a03e35	509	MODULE_DESCRIPTION("active-semi act88xx voltage regulator driver");
33036f48 WY	510	MODULE_AUTHOR("Wenyou Yang <wenyou.yang@atmel.com>");
33036f48 WY	511	MODULE_LICENSE("GPL v2");