[deliverable/linux.git] / drivers / regulator / tps6586x-regulator.c

/*
 * Regulator driver for TI TPS6586x
 *
 * Copyright (C) 2010 Compulab Ltd.
 * Author: Mike Rapoport <mike@compulab.co.il>
 *
 * Based on da903x
 * Copyright (C) 2006-2008 Marvell International Ltd.
 * Copyright (C) 2008 Compulab Ltd.
 *
 * 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/kernel.h>
#include <linux/module.h>
#include <linux/init.h>
#include <linux/err.h>
#include <linux/of.h>
#include <linux/slab.h>
#include <linux/platform_device.h>
#include <linux/regulator/driver.h>
#include <linux/regulator/machine.h>
#include <linux/regulator/of_regulator.h>
#include <linux/mfd/tps6586x.h>

/* supply control and voltage setting  */
#define TPS6586X_SUPPLYENA	0x10
#define TPS6586X_SUPPLYENB	0x11
#define TPS6586X_SUPPLYENC	0x12
#define TPS6586X_SUPPLYEND	0x13
#define TPS6586X_SUPPLYENE	0x14
#define TPS6586X_VCC1		0x20
#define TPS6586X_VCC2		0x21
#define TPS6586X_SM1V1		0x23
#define TPS6586X_SM1V2		0x24
#define TPS6586X_SM1SL		0x25
#define TPS6586X_SM0V1		0x26
#define TPS6586X_SM0V2		0x27
#define TPS6586X_SM0SL		0x28
#define TPS6586X_LDO2AV1	0x29
#define TPS6586X_LDO2AV2	0x2A
#define TPS6586X_LDO2BV1	0x2F
#define TPS6586X_LDO2BV2	0x30
#define TPS6586X_LDO4V1		0x32
#define TPS6586X_LDO4V2		0x33

/* converter settings  */
#define TPS6586X_SUPPLYV1	0x41
#define TPS6586X_SUPPLYV2	0x42
#define TPS6586X_SUPPLYV3	0x43
#define TPS6586X_SUPPLYV4	0x44
#define TPS6586X_SUPPLYV5	0x45
#define TPS6586X_SUPPLYV6	0x46
#define TPS6586X_SMODE1		0x47
#define TPS6586X_SMODE2		0x48

struct tps6586x_regulator {
	struct regulator_desc desc;

	int enable_bit[2];
	int enable_reg[2];
};

static inline struct device *to_tps6586x_dev(struct regulator_dev *rdev)
{
	return rdev_get_dev(rdev)->parent;
}

static struct regulator_ops tps6586x_rw_regulator_ops = {
	.list_voltage = regulator_list_voltage_table,
	.map_voltage = regulator_map_voltage_ascend,
	.get_voltage_sel = regulator_get_voltage_sel_regmap,
	.set_voltage_sel = regulator_set_voltage_sel_regmap,

	.is_enabled = regulator_is_enabled_regmap,
	.enable = regulator_enable_regmap,
	.disable = regulator_disable_regmap,
};

static struct regulator_ops tps6586x_ro_regulator_ops = {
	.list_voltage = regulator_list_voltage_table,
	.map_voltage = regulator_map_voltage_ascend,
	.get_voltage_sel = regulator_get_voltage_sel_regmap,

	.is_enabled = regulator_is_enabled_regmap,
	.enable = regulator_enable_regmap,
	.disable = regulator_disable_regmap,
};

static struct regulator_ops tps6586x_sys_regulator_ops = {
};

static const unsigned int tps6586x_ldo0_voltages[] = {
	1200000, 1500000, 1800000, 2500000, 2700000, 2850000, 3100000, 3300000,
};

static const unsigned int tps6586x_ldo4_voltages[] = {
	1700000, 1725000, 1750000, 1775000, 1800000, 1825000, 1850000, 1875000,
	1900000, 1925000, 1950000, 1975000, 2000000, 2025000, 2050000, 2075000,
	2100000, 2125000, 2150000, 2175000, 2200000, 2225000, 2250000, 2275000,
	2300000, 2325000, 2350000, 2375000, 2400000, 2425000, 2450000, 2475000,
};

#define tps658623_sm2_voltages tps6586x_ldo4_voltages

static const unsigned int tps6586x_ldo_voltages[] = {
	1250000, 1500000, 1800000, 2500000, 2700000, 2850000, 3100000, 3300000,
};

static const unsigned int tps6586x_sm2_voltages[] = {
	3000000, 3050000, 3100000, 3150000, 3200000, 3250000, 3300000, 3350000,
	3400000, 3450000, 3500000, 3550000, 3600000, 3650000, 3700000, 3750000,
	3800000, 3850000, 3900000, 3950000, 4000000, 4050000, 4100000, 4150000,
	4200000, 4250000, 4300000, 4350000, 4400000, 4450000, 4500000, 4550000,
};

static int tps658640_sm2_voltages[] = {
	2150000, 2200000, 2250000, 2300000, 2350000, 2400000, 2450000, 2500000,
	2550000, 2600000, 2650000, 2700000, 2750000, 2800000, 2850000, 2900000,
	2950000, 3000000, 3050000, 3100000, 3150000, 3200000, 3250000, 3300000,
	3350000, 3400000, 3450000, 3500000, 3550000, 3600000, 3650000, 3700000,
};

static const unsigned int tps658643_sm2_voltages[] = {
	1025000, 1050000, 1075000, 1100000, 1125000, 1150000, 1175000, 1200000,
	1225000, 1250000, 1275000, 1300000, 1325000, 1350000, 1375000, 1400000,
	1425000, 1450000, 1475000, 1500000, 1525000, 1550000, 1575000, 1600000,
	1625000, 1650000, 1675000, 1700000, 1725000, 1750000, 1775000, 1800000,
};

static const unsigned int tps6586x_dvm_voltages[] = {
	 725000,  750000,  775000,  800000,  825000,  850000,  875000,  900000,
	 925000,  950000,  975000, 1000000, 1025000, 1050000, 1075000, 1100000,
	1125000, 1150000, 1175000, 1200000, 1225000, 1250000, 1275000, 1300000,
	1325000, 1350000, 1375000, 1400000, 1425000, 1450000, 1475000, 1500000,
};

static int tps658640_rtc_voltages[] = {
	2500000, 2850000, 3100000, 3300000,
};

#define TPS6586X_REGULATOR(_id, _ops, _pin_name, vdata, vreg, shift, nbits, \
			   ereg0, ebit0, ereg1, ebit1, goreg, gobit)	\
	.desc	= {							\
		.supply_name = _pin_name,				\
		.name	= "REG-" #_id,					\
		.ops	= &tps6586x_## _ops ## _regulator_ops,		\
		.type	= REGULATOR_VOLTAGE,				\
		.id	= TPS6586X_ID_##_id,				\
		.n_voltages = ARRAY_SIZE(vdata##_voltages),		\
		.volt_table = vdata##_voltages,				\
		.owner	= THIS_MODULE,					\
		.enable_reg = TPS6586X_SUPPLY##ereg0,			\
		.enable_mask = 1 << (ebit0),				\
		.vsel_reg = TPS6586X_##vreg,				\
		.vsel_mask = ((1 << (nbits)) - 1) << (shift),		\
		.apply_reg = (goreg),				\
		.apply_bit = (gobit),				\
	},								\
	.enable_reg[0]	= TPS6586X_SUPPLY##ereg0,			\
	.enable_bit[0]	= (ebit0),					\
	.enable_reg[1]	= TPS6586X_SUPPLY##ereg1,			\
	.enable_bit[1]	= (ebit1),

#define TPS6586X_LDO(_id, _pname, vdata, vreg, shift, nbits,		\
		     ereg0, ebit0, ereg1, ebit1)			\
{									\
	TPS6586X_REGULATOR(_id, rw, _pname, vdata, vreg, shift, nbits,	\
			   ereg0, ebit0, ereg1, ebit1, 0, 0)		\
}

#define TPS6586X_FIXED_LDO(_id, _pname, vdata, vreg, shift, nbits,	\
			  ereg0, ebit0, ereg1, ebit1)			\
{									\
	TPS6586X_REGULATOR(_id, ro, _pname, vdata, vreg, shift, nbits,	\
			   ereg0, ebit0, ereg1, ebit1, 0, 0)		\
}

#define TPS6586X_DVM(_id, _pname, vdata, vreg, shift, nbits,		\
		     ereg0, ebit0, ereg1, ebit1, goreg, gobit)		\
{									\
	TPS6586X_REGULATOR(_id, rw, _pname, vdata, vreg, shift, nbits,	\
			   ereg0, ebit0, ereg1, ebit1, goreg, gobit)	\
}

#define TPS6586X_SYS_REGULATOR()					\
{									\
	.desc	= {							\
		.supply_name = "sys",					\
		.name	= "REG-SYS",					\
		.ops	= &tps6586x_sys_regulator_ops,			\
		.type	= REGULATOR_VOLTAGE,				\
		.id	= TPS6586X_ID_SYS,				\
		.owner	= THIS_MODULE,					\
	},								\
}

static struct tps6586x_regulator tps6586x_regulator[] = {
	TPS6586X_SYS_REGULATOR(),
	TPS6586X_LDO(LDO_0, "vinldo01", tps6586x_ldo0, SUPPLYV1, 5, 3, ENC, 0,
					END, 0),
	TPS6586X_LDO(LDO_3, "vinldo23", tps6586x_ldo, SUPPLYV4, 0, 3, ENC, 2,
					END, 2),
	TPS6586X_LDO(LDO_5, "REG-SYS", tps6586x_ldo, SUPPLYV6, 0, 3, ENE, 6,
					ENE, 6),
	TPS6586X_LDO(LDO_6, "vinldo678", tps6586x_ldo, SUPPLYV3, 0, 3, ENC, 4,
					END, 4),
	TPS6586X_LDO(LDO_7, "vinldo678", tps6586x_ldo, SUPPLYV3, 3, 3, ENC, 5,
					END, 5),
	TPS6586X_LDO(LDO_8, "vinldo678", tps6586x_ldo, SUPPLYV2, 5, 3, ENC, 6,
					END, 6),
	TPS6586X_LDO(LDO_9, "vinldo9", tps6586x_ldo, SUPPLYV6, 3, 3, ENE, 7,
					ENE, 7),
	TPS6586X_LDO(LDO_RTC, "REG-SYS", tps6586x_ldo, SUPPLYV4, 3, 3, V4, 7,
					V4, 7),
	TPS6586X_LDO(LDO_1, "vinldo01", tps6586x_dvm, SUPPLYV1, 0, 5, ENC, 1,
					END, 1),
	TPS6586X_LDO(SM_2, "vin-sm2", tps6586x_sm2, SUPPLYV2, 0, 5, ENC, 7,
					END, 7),

	TPS6586X_DVM(LDO_2, "vinldo23", tps6586x_dvm, LDO2BV1, 0, 5, ENA, 3,
					ENB, 3, TPS6586X_VCC2, BIT(6)),
	TPS6586X_DVM(LDO_4, "vinldo4", tps6586x_ldo4, LDO4V1, 0, 5, ENC, 3,
					END, 3, TPS6586X_VCC1, BIT(6)),
	TPS6586X_DVM(SM_0, "vin-sm0", tps6586x_dvm, SM0V1, 0, 5, ENA, 1,
					ENB, 1, TPS6586X_VCC1, BIT(2)),
	TPS6586X_DVM(SM_1, "vin-sm1", tps6586x_dvm, SM1V1, 0, 5, ENA, 0,
					ENB, 0, TPS6586X_VCC1, BIT(0)),
};

static struct tps6586x_regulator tps658623_regulator[] = {
	TPS6586X_LDO(SM_2, "vin-sm2", tps658623_sm2, SUPPLYV2, 0, 5, ENC, 7,
					END, 7),
};

static struct tps6586x_regulator tps658640_regulator[] = {
	TPS6586X_LDO(LDO_3, "vinldo23", tps6586x_ldo0, SUPPLYV4, 0, 3,
					ENC, 2, END, 2),
	TPS6586X_LDO(LDO_5, "REG-SYS", tps6586x_ldo0, SUPPLYV6, 0, 3,
					ENE, 6, ENE, 6),
	TPS6586X_LDO(LDO_6, "vinldo678", tps6586x_ldo0, SUPPLYV3, 0, 3,
					ENC, 4, END, 4),
	TPS6586X_LDO(LDO_7, "vinldo678", tps6586x_ldo0, SUPPLYV3, 3, 3,
					ENC, 5, END, 5),
	TPS6586X_LDO(LDO_8, "vinldo678", tps6586x_ldo0, SUPPLYV2, 5, 3,
					ENC, 6, END, 6),
	TPS6586X_LDO(LDO_9, "vinldo9", tps6586x_ldo0, SUPPLYV6, 3, 3,
					ENE, 7, ENE, 7),
	TPS6586X_LDO(SM_2, "vin-sm2", tps658640_sm2, SUPPLYV2, 0, 5,
					ENC, 7, END, 7),

	TPS6586X_FIXED_LDO(LDO_RTC, "REG-SYS", tps658640_rtc, SUPPLYV4, 3, 2,
					V4, 7, V4, 7),
};

static struct tps6586x_regulator tps658643_regulator[] = {
	TPS6586X_LDO(SM_2, "vin-sm2", tps658643_sm2, SUPPLYV2, 0, 5, ENC, 7,
					END, 7),
};

/*
 * TPS6586X has 2 enable bits that are OR'ed to determine the actual
 * regulator state. Clearing one of this bits allows switching
 * regulator on and of with single register write.
 */
static inline int tps6586x_regulator_preinit(struct device *parent,
					     struct tps6586x_regulator *ri)
{
	uint8_t val1, val2;
	int ret;

	if (ri->enable_reg[0] == ri->enable_reg[1] &&
	    ri->enable_bit[0] == ri->enable_bit[1])
			return 0;

	ret = tps6586x_read(parent, ri->enable_reg[0], &val1);
	if (ret)
		return ret;

	ret = tps6586x_read(parent, ri->enable_reg[1], &val2);
	if (ret)
		return ret;

	if (!(val2 & (1 << ri->enable_bit[1])))
		return 0;

	/*
	 * The regulator is on, but it's enabled with the bit we don't
	 * want to use, so we switch the enable bits
	 */
	if (!(val1 & (1 << ri->enable_bit[0]))) {
		ret = tps6586x_set_bits(parent, ri->enable_reg[0],
					1 << ri->enable_bit[0]);
		if (ret)
			return ret;
	}

	return tps6586x_clr_bits(parent, ri->enable_reg[1],
				 1 << ri->enable_bit[1]);
}

static int tps6586x_regulator_set_slew_rate(struct platform_device *pdev,
			int id, struct regulator_init_data *p)
{
	struct device *parent = pdev->dev.parent;
	struct tps6586x_settings *setting = p->driver_data;
	uint8_t reg;

	if (setting == NULL)
		return 0;

	if (!(setting->slew_rate & TPS6586X_SLEW_RATE_SET))
		return 0;

	/* only SM0 and SM1 can have the slew rate settings */
	switch (id) {
	case TPS6586X_ID_SM_0:
		reg = TPS6586X_SM0SL;
		break;
	case TPS6586X_ID_SM_1:
		reg = TPS6586X_SM1SL;
		break;
	default:
		dev_err(&pdev->dev, "Only SM0/SM1 can set slew rate\n");
		return -EINVAL;
	}

	return tps6586x_write(parent, reg,
			setting->slew_rate & TPS6586X_SLEW_RATE_MASK);
}

static struct tps6586x_regulator *find_regulator_info(int id, int version)
{
	struct tps6586x_regulator *ri;
	struct tps6586x_regulator *table = NULL;
	int num;
	int i;

	switch (version) {
	case TPS658623:
		table = tps658623_regulator;
		num = ARRAY_SIZE(tps658623_regulator);
		break;
	case TPS658640:
	case TPS658640v2:
		table = tps658640_regulator;
		num = ARRAY_SIZE(tps658640_regulator);
		break;
	case TPS658643:
		table = tps658643_regulator;
		num = ARRAY_SIZE(tps658643_regulator);
		break;
	}

	/* Search version specific table first */
	if (table) {
		for (i = 0; i < num; i++) {
			ri = &table[i];
			if (ri->desc.id == id)
				return ri;
		}
	}

	for (i = 0; i < ARRAY_SIZE(tps6586x_regulator); i++) {
		ri = &tps6586x_regulator[i];
		if (ri->desc.id == id)
			return ri;
	}
	return NULL;
}

#ifdef CONFIG_OF
static struct of_regulator_match tps6586x_matches[] = {
	{ .name = "sys",     .driver_data = (void *)TPS6586X_ID_SYS     },
	{ .name = "sm0",     .driver_data = (void *)TPS6586X_ID_SM_0    },
	{ .name = "sm1",     .driver_data = (void *)TPS6586X_ID_SM_1    },
	{ .name = "sm2",     .driver_data = (void *)TPS6586X_ID_SM_2    },
	{ .name = "ldo0",    .driver_data = (void *)TPS6586X_ID_LDO_0   },
	{ .name = "ldo1",    .driver_data = (void *)TPS6586X_ID_LDO_1   },
	{ .name = "ldo2",    .driver_data = (void *)TPS6586X_ID_LDO_2   },
	{ .name = "ldo3",    .driver_data = (void *)TPS6586X_ID_LDO_3   },
	{ .name = "ldo4",    .driver_data = (void *)TPS6586X_ID_LDO_4   },
	{ .name = "ldo5",    .driver_data = (void *)TPS6586X_ID_LDO_5   },
	{ .name = "ldo6",    .driver_data = (void *)TPS6586X_ID_LDO_6   },
	{ .name = "ldo7",    .driver_data = (void *)TPS6586X_ID_LDO_7   },
	{ .name = "ldo8",    .driver_data = (void *)TPS6586X_ID_LDO_8   },
	{ .name = "ldo9",    .driver_data = (void *)TPS6586X_ID_LDO_9   },
	{ .name = "ldo_rtc", .driver_data = (void *)TPS6586X_ID_LDO_RTC },
};

static struct tps6586x_platform_data *tps6586x_parse_regulator_dt(
		struct platform_device *pdev,
		struct of_regulator_match **tps6586x_reg_matches)
{
	const unsigned int num = ARRAY_SIZE(tps6586x_matches);
	struct device_node *np = pdev->dev.parent->of_node;
	struct device_node *regs;
	const char *sys_rail = NULL;
	unsigned int i;
	struct tps6586x_platform_data *pdata;
	int err;

	regs = of_get_child_by_name(np, "regulators");
	if (!regs) {
		dev_err(&pdev->dev, "regulator node not found\n");
		return NULL;
	}

	err = of_regulator_match(&pdev->dev, regs, tps6586x_matches, num);
	of_node_put(regs);
	if (err < 0) {
		dev_err(&pdev->dev, "Regulator match failed, e %d\n", err);
		return NULL;
	}

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

	for (i = 0; i < num; i++) {
		int id;
		if (!tps6586x_matches[i].init_data)
			continue;

		pdata->reg_init_data[i] = tps6586x_matches[i].init_data;
		id = (int)tps6586x_matches[i].driver_data;
		if (id == TPS6586X_ID_SYS)
			sys_rail = pdata->reg_init_data[i]->constraints.name;

		if ((id == TPS6586X_ID_LDO_5) || (id == TPS6586X_ID_LDO_RTC))
			pdata->reg_init_data[i]->supply_regulator = sys_rail;
	}
	*tps6586x_reg_matches = tps6586x_matches;
	return pdata;
}
#else
static struct tps6586x_platform_data *tps6586x_parse_regulator_dt(
		struct platform_device *pdev,
		struct of_regulator_match **tps6586x_reg_matches)
{
	*tps6586x_reg_matches = NULL;
	return NULL;
}
#endif

static int tps6586x_regulator_probe(struct platform_device *pdev)
{
	struct tps6586x_regulator *ri = NULL;
	struct regulator_config config = { };
	struct regulator_dev *rdev;
	struct regulator_init_data *reg_data;
	struct tps6586x_platform_data *pdata;
	struct of_regulator_match *tps6586x_reg_matches = NULL;
	int version;
	int id;
	int err;

	dev_dbg(&pdev->dev, "Probing regulator\n");

	pdata = dev_get_platdata(pdev->dev.parent);
	if ((!pdata) && (pdev->dev.parent->of_node))
		pdata = tps6586x_parse_regulator_dt(pdev,
					&tps6586x_reg_matches);

	if (!pdata) {
		dev_err(&pdev->dev, "Platform data not available, exiting\n");
		return -ENODEV;
	}

	version = tps6586x_get_version(pdev->dev.parent);

	for (id = 0; id < TPS6586X_ID_MAX_REGULATOR; ++id) {
		reg_data = pdata->reg_init_data[id];

		ri = find_regulator_info(id, version);

		if (!ri) {
			dev_err(&pdev->dev, "invalid regulator ID specified\n");
			return -EINVAL;
		}

		err = tps6586x_regulator_preinit(pdev->dev.parent, ri);
		if (err) {
			dev_err(&pdev->dev,
				"regulator %d preinit failed, e %d\n", id, err);
			return err;
		}

		config.dev = pdev->dev.parent;
		config.init_data = reg_data;
		config.driver_data = ri;

		if (tps6586x_reg_matches)
			config.of_node = tps6586x_reg_matches[id].of_node;

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

		if (reg_data) {
			err = tps6586x_regulator_set_slew_rate(pdev, id,
					reg_data);
			if (err < 0) {
				dev_err(&pdev->dev,
					"Slew rate config failed, e %d\n", err);
				return err;
			}
		}
	}

	platform_set_drvdata(pdev, rdev);
	return 0;
}

static struct platform_driver tps6586x_regulator_driver = {
	.driver	= {
		.name	= "tps6586x-regulator",
		.owner	= THIS_MODULE,
	},
	.probe		= tps6586x_regulator_probe,
};

static int __init tps6586x_regulator_init(void)
{
	return platform_driver_register(&tps6586x_regulator_driver);
}
subsys_initcall(tps6586x_regulator_init);

static void __exit tps6586x_regulator_exit(void)
{
	platform_driver_unregister(&tps6586x_regulator_driver);
}
module_exit(tps6586x_regulator_exit);

MODULE_LICENSE("GPL");
MODULE_AUTHOR("Mike Rapoport <mike@compulab.co.il>");
MODULE_DESCRIPTION("Regulator Driver for TI TPS6586X PMIC");
MODULE_ALIAS("platform:tps6586x-regulator");
Commit	Line	Data
49610235 MR	1	/*
	2	* Regulator driver for TI TPS6586x
	3	*
	4	* Copyright (C) 2010 Compulab Ltd.
	5	* Author: Mike Rapoport <mike@compulab.co.il>
	6	*
	7	* Based on da903x
	8	* Copyright (C) 2006-2008 Marvell International Ltd.
	9	* Copyright (C) 2008 Compulab Ltd.
	10	*
	11	* This program is free software; you can redistribute it and/or modify
	12	* it under the terms of the GNU General Public License version 2 as
	13	* published by the Free Software Foundation.
	14	*/
	15
49610235	16	#include <linux/kernel.h>
65602c32	17	#include <linux/module.h>
49610235 MR	18	#include <linux/init.h>
49610235 MR	19	#include <linux/err.h>
64e48160	20	#include <linux/of.h>
49610235 MR	21	#include <linux/slab.h>
	22	#include <linux/platform_device.h>
	23	#include <linux/regulator/driver.h>
	24	#include <linux/regulator/machine.h>
64e48160	25	#include <linux/regulator/of_regulator.h>
49610235 MR	26	#include <linux/mfd/tps6586x.h>
	27
	28	/* supply control and voltage setting */
	29	#define TPS6586X_SUPPLYENA 0x10
	30	#define TPS6586X_SUPPLYENB 0x11
	31	#define TPS6586X_SUPPLYENC 0x12
	32	#define TPS6586X_SUPPLYEND 0x13
	33	#define TPS6586X_SUPPLYENE 0x14
	34	#define TPS6586X_VCC1 0x20
	35	#define TPS6586X_VCC2 0x21
	36	#define TPS6586X_SM1V1 0x23
	37	#define TPS6586X_SM1V2 0x24
	38	#define TPS6586X_SM1SL 0x25
	39	#define TPS6586X_SM0V1 0x26
	40	#define TPS6586X_SM0V2 0x27
	41	#define TPS6586X_SM0SL 0x28
	42	#define TPS6586X_LDO2AV1 0x29
	43	#define TPS6586X_LDO2AV2 0x2A
	44	#define TPS6586X_LDO2BV1 0x2F
	45	#define TPS6586X_LDO2BV2 0x30
	46	#define TPS6586X_LDO4V1 0x32
	47	#define TPS6586X_LDO4V2 0x33
	48
	49	/* converter settings */
	50	#define TPS6586X_SUPPLYV1 0x41
	51	#define TPS6586X_SUPPLYV2 0x42
	52	#define TPS6586X_SUPPLYV3 0x43
	53	#define TPS6586X_SUPPLYV4 0x44
	54	#define TPS6586X_SUPPLYV5 0x45
	55	#define TPS6586X_SUPPLYV6 0x46
	56	#define TPS6586X_SMODE1 0x47
	57	#define TPS6586X_SMODE2 0x48
	58
	59	struct tps6586x_regulator {
	60	struct regulator_desc desc;
	61
49610235 MR	62	int enable_bit[2];
49610235 MR	63	int enable_reg[2];
49610235 MR	64	};
	65
	66	static inline struct device to_tps6586x_dev(struct regulator_dev rdev)
	67	{
7c7fac30	68	return rdev_get_dev(rdev)->parent;
49610235 MR	69	}
49610235 MR	70
ad0b40fe	71	static struct regulator_ops tps6586x_rw_regulator_ops = {
f4647037	72	.list_voltage = regulator_list_voltage_table,
4d673bbc	73	.map_voltage = regulator_map_voltage_ascend,
7c7475c0	74	.get_voltage_sel = regulator_get_voltage_sel_regmap,
d645d591	75	.set_voltage_sel = regulator_set_voltage_sel_regmap,
49610235	76
7c7475c0 AL	77	.is_enabled = regulator_is_enabled_regmap,
	78	.enable = regulator_enable_regmap,
	79	.disable = regulator_disable_regmap,
49610235 MR	80	};
49610235 MR	81
ad0b40fe AB	82	static struct regulator_ops tps6586x_ro_regulator_ops = {
	83	.list_voltage = regulator_list_voltage_table,
	84	.map_voltage = regulator_map_voltage_ascend,
	85	.get_voltage_sel = regulator_get_voltage_sel_regmap,
	86
	87	.is_enabled = regulator_is_enabled_regmap,
	88	.enable = regulator_enable_regmap,
	89	.disable = regulator_disable_regmap,
	90	};
	91
9394b80c	92	static struct regulator_ops tps6586x_sys_regulator_ops = {
49610235 MR	93	};
49610235 MR	94
f4647037 AL	95	static const unsigned int tps6586x_ldo0_voltages[] = {
	96	1200000, 1500000, 1800000, 2500000, 2700000, 2850000, 3100000, 3300000,
	97	};
	98
	99	static const unsigned int tps6586x_ldo4_voltages[] = {
	100	1700000, 1725000, 1750000, 1775000, 1800000, 1825000, 1850000, 1875000,
	101	1900000, 1925000, 1950000, 1975000, 2000000, 2025000, 2050000, 2075000,
	102	2100000, 2125000, 2150000, 2175000, 2200000, 2225000, 2250000, 2275000,
	103	2300000, 2325000, 2350000, 2375000, 2400000, 2425000, 2450000, 2475000,
49610235 MR	104	};
49610235 MR	105
844a4f0d SA	106	#define tps658623_sm2_voltages tps6586x_ldo4_voltages
844a4f0d SA	107
f4647037 AL	108	static const unsigned int tps6586x_ldo_voltages[] = {
f4647037 AL	109	1250000, 1500000, 1800000, 2500000, 2700000, 2850000, 3100000, 3300000,
49610235 MR	110	};
49610235 MR	111
f4647037 AL	112	static const unsigned int tps6586x_sm2_voltages[] = {
	113	3000000, 3050000, 3100000, 3150000, 3200000, 3250000, 3300000, 3350000,
	114	3400000, 3450000, 3500000, 3550000, 3600000, 3650000, 3700000, 3750000,
	115	3800000, 3850000, 3900000, 3950000, 4000000, 4050000, 4100000, 4150000,
	116	4200000, 4250000, 4300000, 4350000, 4400000, 4450000, 4500000, 4550000,
4cc2e393 GK	117	};
4cc2e393 GK	118
6c46ccc8 AB	119	static int tps658640_sm2_voltages[] = {
	120	2150000, 2200000, 2250000, 2300000, 2350000, 2400000, 2450000, 2500000,
	121	2550000, 2600000, 2650000, 2700000, 2750000, 2800000, 2850000, 2900000,
	122	2950000, 3000000, 3050000, 3100000, 3150000, 3200000, 3250000, 3300000,
	123	3350000, 3400000, 3450000, 3500000, 3550000, 3600000, 3650000, 3700000,
	124	};
	125
844a4f0d SA	126	static const unsigned int tps658643_sm2_voltages[] = {
	127	1025000, 1050000, 1075000, 1100000, 1125000, 1150000, 1175000, 1200000,
	128	1225000, 1250000, 1275000, 1300000, 1325000, 1350000, 1375000, 1400000,
	129	1425000, 1450000, 1475000, 1500000, 1525000, 1550000, 1575000, 1600000,
	130	1625000, 1650000, 1675000, 1700000, 1725000, 1750000, 1775000, 1800000,
	131	};
	132
f4647037 AL	133	static const unsigned int tps6586x_dvm_voltages[] = {
	134	725000, 750000, 775000, 800000, 825000, 850000, 875000, 900000,
	135	925000, 950000, 975000, 1000000, 1025000, 1050000, 1075000, 1100000,
	136	1125000, 1150000, 1175000, 1200000, 1225000, 1250000, 1275000, 1300000,
	137	1325000, 1350000, 1375000, 1400000, 1425000, 1450000, 1475000, 1500000,
49610235 MR	138	};
49610235 MR	139
6c46ccc8 AB	140	static int tps658640_rtc_voltages[] = {
	141	2500000, 2850000, 3100000, 3300000,
	142	};
	143
ad0b40fe	144	#define TPS6586X_REGULATOR(_id, _ops, _pin_name, vdata, vreg, shift, nbits, \
d645d591	145	ereg0, ebit0, ereg1, ebit1, goreg, gobit) \
49610235	146	.desc = { \
7c7fac30	147	.supply_name = _pin_name, \
49610235	148	.name = "REG-" #_id, \
ad0b40fe	149	.ops = &tps6586x_## _ops ## _regulator_ops, \
49610235 MR	150	.type = REGULATOR_VOLTAGE, \
49610235 MR	151	.id = TPS6586X_ID_##_id, \
844a4f0d SA	152	.n_voltages = ARRAY_SIZE(vdata##_voltages), \
844a4f0d SA	153	.volt_table = vdata##_voltages, \
49610235	154	.owner = THIS_MODULE, \
7c7475c0 AL	155	.enable_reg = TPS6586X_SUPPLY##ereg0, \
	156	.enable_mask = 1 << (ebit0), \
	157	.vsel_reg = TPS6586X_##vreg, \
	158	.vsel_mask = ((1 << (nbits)) - 1) << (shift), \
d645d591 AL	159	.apply_reg = (goreg), \
d645d591 AL	160	.apply_bit = (gobit), \
49610235	161	}, \
49610235 MR	162	.enable_reg[0] = TPS6586X_SUPPLY##ereg0, \
	163	.enable_bit[0] = (ebit0), \
	164	.enable_reg[1] = TPS6586X_SUPPLY##ereg1, \
f4647037	165	.enable_bit[1] = (ebit1),
64db657b	166
7c7fac30	167	#define TPS6586X_LDO(_id, _pname, vdata, vreg, shift, nbits, \
49610235	168	ereg0, ebit0, ereg1, ebit1) \
64db657b	169	{ \
ad0b40fe AB	170	TPS6586X_REGULATOR(_id, rw, _pname, vdata, vreg, shift, nbits, \
	171	ereg0, ebit0, ereg1, ebit1, 0, 0) \
	172	}
	173
	174	#define TPS6586X_FIXED_LDO(_id, _pname, vdata, vreg, shift, nbits, \
	175	ereg0, ebit0, ereg1, ebit1) \
	176	{ \
	177	TPS6586X_REGULATOR(_id, ro, _pname, vdata, vreg, shift, nbits, \
d645d591	178	ereg0, ebit0, ereg1, ebit1, 0, 0) \
64db657b	179	}
49610235	180
7c7fac30	181	#define TPS6586X_DVM(_id, _pname, vdata, vreg, shift, nbits, \
49610235	182	ereg0, ebit0, ereg1, ebit1, goreg, gobit) \
64db657b	183	{ \
ad0b40fe	184	TPS6586X_REGULATOR(_id, rw, _pname, vdata, vreg, shift, nbits, \
d645d591	185	ereg0, ebit0, ereg1, ebit1, goreg, gobit) \
64db657b	186	}
49610235	187
9394b80c LD	188	#define TPS6586X_SYS_REGULATOR() \
	189	{ \
	190	.desc = { \
	191	.supply_name = "sys", \
	192	.name = "REG-SYS", \
	193	.ops = &tps6586x_sys_regulator_ops, \
	194	.type = REGULATOR_VOLTAGE, \
	195	.id = TPS6586X_ID_SYS, \
	196	.owner = THIS_MODULE, \
	197	}, \
	198	}
	199
49610235	200	static struct tps6586x_regulator tps6586x_regulator[] = {
9394b80c	201	TPS6586X_SYS_REGULATOR(),
844a4f0d SA	202	TPS6586X_LDO(LDO_0, "vinldo01", tps6586x_ldo0, SUPPLYV1, 5, 3, ENC, 0,
	203	END, 0),
	204	TPS6586X_LDO(LDO_3, "vinldo23", tps6586x_ldo, SUPPLYV4, 0, 3, ENC, 2,
	205	END, 2),
	206	TPS6586X_LDO(LDO_5, "REG-SYS", tps6586x_ldo, SUPPLYV6, 0, 3, ENE, 6,
	207	ENE, 6),
	208	TPS6586X_LDO(LDO_6, "vinldo678", tps6586x_ldo, SUPPLYV3, 0, 3, ENC, 4,
	209	END, 4),
	210	TPS6586X_LDO(LDO_7, "vinldo678", tps6586x_ldo, SUPPLYV3, 3, 3, ENC, 5,
	211	END, 5),
	212	TPS6586X_LDO(LDO_8, "vinldo678", tps6586x_ldo, SUPPLYV2, 5, 3, ENC, 6,
	213	END, 6),
	214	TPS6586X_LDO(LDO_9, "vinldo9", tps6586x_ldo, SUPPLYV6, 3, 3, ENE, 7,
	215	ENE, 7),
	216	TPS6586X_LDO(LDO_RTC, "REG-SYS", tps6586x_ldo, SUPPLYV4, 3, 3, V4, 7,
	217	V4, 7),
	218	TPS6586X_LDO(LDO_1, "vinldo01", tps6586x_dvm, SUPPLYV1, 0, 5, ENC, 1,
	219	END, 1),
	220	TPS6586X_LDO(SM_2, "vin-sm2", tps6586x_sm2, SUPPLYV2, 0, 5, ENC, 7,
	221	END, 7),
	222
	223	TPS6586X_DVM(LDO_2, "vinldo23", tps6586x_dvm, LDO2BV1, 0, 5, ENA, 3,
d645d591	224	ENB, 3, TPS6586X_VCC2, BIT(6)),
844a4f0d	225	TPS6586X_DVM(LDO_4, "vinldo4", tps6586x_ldo4, LDO4V1, 0, 5, ENC, 3,
d645d591	226	END, 3, TPS6586X_VCC1, BIT(6)),
844a4f0d	227	TPS6586X_DVM(SM_0, "vin-sm0", tps6586x_dvm, SM0V1, 0, 5, ENA, 1,
d645d591	228	ENB, 1, TPS6586X_VCC1, BIT(2)),
844a4f0d	229	TPS6586X_DVM(SM_1, "vin-sm1", tps6586x_dvm, SM1V1, 0, 5, ENA, 0,
d645d591	230	ENB, 0, TPS6586X_VCC1, BIT(0)),
49610235 MR	231	};
49610235 MR	232
844a4f0d SA	233	static struct tps6586x_regulator tps658623_regulator[] = {
	234	TPS6586X_LDO(SM_2, "vin-sm2", tps658623_sm2, SUPPLYV2, 0, 5, ENC, 7,
	235	END, 7),
	236	};
	237
6c46ccc8 AB	238	static struct tps6586x_regulator tps658640_regulator[] = {
	239	TPS6586X_LDO(LDO_3, "vinldo23", tps6586x_ldo0, SUPPLYV4, 0, 3,
	240	ENC, 2, END, 2),
	241	TPS6586X_LDO(LDO_5, "REG-SYS", tps6586x_ldo0, SUPPLYV6, 0, 3,
	242	ENE, 6, ENE, 6),
	243	TPS6586X_LDO(LDO_6, "vinldo678", tps6586x_ldo0, SUPPLYV3, 0, 3,
	244	ENC, 4, END, 4),
	245	TPS6586X_LDO(LDO_7, "vinldo678", tps6586x_ldo0, SUPPLYV3, 3, 3,
	246	ENC, 5, END, 5),
	247	TPS6586X_LDO(LDO_8, "vinldo678", tps6586x_ldo0, SUPPLYV2, 5, 3,
	248	ENC, 6, END, 6),
	249	TPS6586X_LDO(LDO_9, "vinldo9", tps6586x_ldo0, SUPPLYV6, 3, 3,
	250	ENE, 7, ENE, 7),
	251	TPS6586X_LDO(SM_2, "vin-sm2", tps658640_sm2, SUPPLYV2, 0, 5,
	252	ENC, 7, END, 7),
	253
	254	TPS6586X_FIXED_LDO(LDO_RTC, "REG-SYS", tps658640_rtc, SUPPLYV4, 3, 2,
	255	V4, 7, V4, 7),
	256	};
	257
844a4f0d SA	258	static struct tps6586x_regulator tps658643_regulator[] = {
	259	TPS6586X_LDO(SM_2, "vin-sm2", tps658643_sm2, SUPPLYV2, 0, 5, ENC, 7,
	260	END, 7),
	261	};
	262
49610235 MR	263	/*
	264	* TPS6586X has 2 enable bits that are OR'ed to determine the actual
	265	* regulator state. Clearing one of this bits allows switching
	266	* regulator on and of with single register write.
	267	*/
	268	static inline int tps6586x_regulator_preinit(struct device *parent,
	269	struct tps6586x_regulator *ri)
	270	{
	271	uint8_t val1, val2;
	272	int ret;
	273
1dbcf35c DH	274	if (ri->enable_reg[0] == ri->enable_reg[1] &&
	275	ri->enable_bit[0] == ri->enable_bit[1])
	276	return 0;
	277
49610235 MR	278	ret = tps6586x_read(parent, ri->enable_reg[0], &val1);
	279	if (ret)
	280	return ret;
	281
	282	ret = tps6586x_read(parent, ri->enable_reg[1], &val2);
	283	if (ret)
	284	return ret;
	285
4f586707	286	if (!(val2 & (1 << ri->enable_bit[1])))
49610235 MR	287	return 0;
	288
	289	/*
	290	* The regulator is on, but it's enabled with the bit we don't
	291	* want to use, so we switch the enable bits
	292	*/
4f586707	293	if (!(val1 & (1 << ri->enable_bit[0]))) {
49610235 MR	294	ret = tps6586x_set_bits(parent, ri->enable_reg[0],
	295	1 << ri->enable_bit[0]);
	296	if (ret)
	297	return ret;
	298	}
	299
	300	return tps6586x_clr_bits(parent, ri->enable_reg[1],
	301	1 << ri->enable_bit[1]);
	302	}
	303
64e48160 LD	304	static int tps6586x_regulator_set_slew_rate(struct platform_device *pdev,
64e48160 LD	305	int id, struct regulator_init_data *p)
500c524a XX	306	{
500c524a XX	307	struct device *parent = pdev->dev.parent;
500c524a XX	308	struct tps6586x_settings *setting = p->driver_data;
	309	uint8_t reg;
	310
	311	if (setting == NULL)
	312	return 0;
	313
	314	if (!(setting->slew_rate & TPS6586X_SLEW_RATE_SET))
	315	return 0;
	316
	317	/* only SM0 and SM1 can have the slew rate settings */
64e48160	318	switch (id) {
500c524a XX	319	case TPS6586X_ID_SM_0:
	320	reg = TPS6586X_SM0SL;
	321	break;
	322	case TPS6586X_ID_SM_1:
	323	reg = TPS6586X_SM1SL;
	324	break;
	325	default:
6673d66e	326	dev_err(&pdev->dev, "Only SM0/SM1 can set slew rate\n");
500c524a XX	327	return -EINVAL;
	328	}
	329
	330	return tps6586x_write(parent, reg,
	331	setting->slew_rate & TPS6586X_SLEW_RATE_MASK);
	332	}
	333
844a4f0d	334	static struct tps6586x_regulator *find_regulator_info(int id, int version)
49610235 MR	335	{
49610235 MR	336	struct tps6586x_regulator *ri;
844a4f0d SA	337	struct tps6586x_regulator *table = NULL;
844a4f0d SA	338	int num;
49610235 MR	339	int i;
49610235 MR	340
844a4f0d SA	341	switch (version) {
	342	case TPS658623:
	343	table = tps658623_regulator;
	344	num = ARRAY_SIZE(tps658623_regulator);
	345	break;
6c46ccc8 AB	346	case TPS658640:
	347	case TPS658640v2:
	348	table = tps658640_regulator;
	349	num = ARRAY_SIZE(tps658640_regulator);
	350	break;
844a4f0d SA	351	case TPS658643:
	352	table = tps658643_regulator;
	353	num = ARRAY_SIZE(tps658643_regulator);
	354	break;
	355	}
	356
	357	/* Search version specific table first */
	358	if (table) {
	359	for (i = 0; i < num; i++) {
	360	ri = &table[i];
	361	if (ri->desc.id == id)
	362	return ri;
	363	}
	364	}
	365
49610235 MR	366	for (i = 0; i < ARRAY_SIZE(tps6586x_regulator); i++) {
	367	ri = &tps6586x_regulator[i];
	368	if (ri->desc.id == id)
	369	return ri;
	370	}
	371	return NULL;
	372	}
	373
64e48160 LD	374	#ifdef CONFIG_OF
	375	static struct of_regulator_match tps6586x_matches[] = {
	376	{ .name = "sys", .driver_data = (void *)TPS6586X_ID_SYS },
	377	{ .name = "sm0", .driver_data = (void *)TPS6586X_ID_SM_0 },
	378	{ .name = "sm1", .driver_data = (void *)TPS6586X_ID_SM_1 },
	379	{ .name = "sm2", .driver_data = (void *)TPS6586X_ID_SM_2 },
	380	{ .name = "ldo0", .driver_data = (void *)TPS6586X_ID_LDO_0 },
	381	{ .name = "ldo1", .driver_data = (void *)TPS6586X_ID_LDO_1 },
	382	{ .name = "ldo2", .driver_data = (void *)TPS6586X_ID_LDO_2 },
	383	{ .name = "ldo3", .driver_data = (void *)TPS6586X_ID_LDO_3 },
	384	{ .name = "ldo4", .driver_data = (void *)TPS6586X_ID_LDO_4 },
	385	{ .name = "ldo5", .driver_data = (void *)TPS6586X_ID_LDO_5 },
	386	{ .name = "ldo6", .driver_data = (void *)TPS6586X_ID_LDO_6 },
	387	{ .name = "ldo7", .driver_data = (void *)TPS6586X_ID_LDO_7 },
	388	{ .name = "ldo8", .driver_data = (void *)TPS6586X_ID_LDO_8 },
	389	{ .name = "ldo9", .driver_data = (void *)TPS6586X_ID_LDO_9 },
	390	{ .name = "ldo_rtc", .driver_data = (void *)TPS6586X_ID_LDO_RTC },
	391	};
	392
	393	static struct tps6586x_platform_data *tps6586x_parse_regulator_dt(
	394	struct platform_device *pdev,
	395	struct of_regulator_match **tps6586x_reg_matches)
	396	{
	397	const unsigned int num = ARRAY_SIZE(tps6586x_matches);
	398	struct device_node *np = pdev->dev.parent->of_node;
	399	struct device_node *regs;
	400	const char *sys_rail = NULL;
	401	unsigned int i;
	402	struct tps6586x_platform_data *pdata;
	403	int err;
	404
712c967f	405	regs = of_get_child_by_name(np, "regulators");
64e48160 LD	406	if (!regs) {
	407	dev_err(&pdev->dev, "regulator node not found\n");
	408	return NULL;
	409	}
	410
	411	err = of_regulator_match(&pdev->dev, regs, tps6586x_matches, num);
0a4cccaa	412	of_node_put(regs);
64e48160 LD	413	if (err < 0) {
64e48160 LD	414	dev_err(&pdev->dev, "Regulator match failed, e %d\n", err);
64e48160 LD	415	return NULL;
	416	}
	417
64e48160	418	pdata = devm_kzalloc(&pdev->dev, sizeof(*pdata), GFP_KERNEL);
02e90584	419	if (!pdata)
64e48160	420	return NULL;
64e48160 LD	421
	422	for (i = 0; i < num; i++) {
	423	int id;
	424	if (!tps6586x_matches[i].init_data)
	425	continue;
	426
	427	pdata->reg_init_data[i] = tps6586x_matches[i].init_data;
	428	id = (int)tps6586x_matches[i].driver_data;
	429	if (id == TPS6586X_ID_SYS)
	430	sys_rail = pdata->reg_init_data[i]->constraints.name;
	431
	432	if ((id == TPS6586X_ID_LDO_5) \|\| (id == TPS6586X_ID_LDO_RTC))
	433	pdata->reg_init_data[i]->supply_regulator = sys_rail;
	434	}
	435	*tps6586x_reg_matches = tps6586x_matches;
	436	return pdata;
	437	}
	438	#else
	439	static struct tps6586x_platform_data *tps6586x_parse_regulator_dt(
	440	struct platform_device *pdev,
	441	struct of_regulator_match **tps6586x_reg_matches)
	442	{
	443	*tps6586x_reg_matches = NULL;
	444	return NULL;
	445	}
	446	#endif
	447
a5023574	448	static int tps6586x_regulator_probe(struct platform_device *pdev)
49610235 MR	449	{
49610235 MR	450	struct tps6586x_regulator *ri = NULL;
c172708d	451	struct regulator_config config = { };
d6fe2c72	452	struct regulator_dev *rdev;
64e48160 LD	453	struct regulator_init_data *reg_data;
	454	struct tps6586x_platform_data *pdata;
	455	struct of_regulator_match *tps6586x_reg_matches = NULL;
844a4f0d	456	int version;
64e48160	457	int id;
49610235 MR	458	int err;
49610235 MR	459
10835600	460	dev_dbg(&pdev->dev, "Probing regulator\n");
49610235	461
64e48160 LD	462	pdata = dev_get_platdata(pdev->dev.parent);
	463	if ((!pdata) && (pdev->dev.parent->of_node))
	464	pdata = tps6586x_parse_regulator_dt(pdev,
	465	&tps6586x_reg_matches);
49610235	466
64e48160 LD	467	if (!pdata) {
	468	dev_err(&pdev->dev, "Platform data not available, exiting\n");
	469	return -ENODEV;
	470	}
49610235	471
844a4f0d SA	472	version = tps6586x_get_version(pdev->dev.parent);
844a4f0d SA	473
64e48160 LD	474	for (id = 0; id < TPS6586X_ID_MAX_REGULATOR; ++id) {
	475	reg_data = pdata->reg_init_data[id];
	476
844a4f0d SA	477	ri = find_regulator_info(id, version);
844a4f0d SA	478
64e48160 LD	479	if (!ri) {
64e48160 LD	480	dev_err(&pdev->dev, "invalid regulator ID specified\n");
884ea557	481	return -EINVAL;
64e48160 LD	482	}
	483
	484	err = tps6586x_regulator_preinit(pdev->dev.parent, ri);
	485	if (err) {
	486	dev_err(&pdev->dev,
	487	"regulator %d preinit failed, e %d\n", id, err);
884ea557	488	return err;
64e48160 LD	489	}
	490
	491	config.dev = pdev->dev.parent;
	492	config.init_data = reg_data;
	493	config.driver_data = ri;
	494
	495	if (tps6586x_reg_matches)
	496	config.of_node = tps6586x_reg_matches[id].of_node;
	497
d6fe2c72 AL	498	rdev = devm_regulator_register(&pdev->dev, &ri->desc, &config);
d6fe2c72 AL	499	if (IS_ERR(rdev)) {
64e48160 LD	500	dev_err(&pdev->dev, "failed to register regulator %s\n",
64e48160 LD	501	ri->desc.name);
d6fe2c72	502	return PTR_ERR(rdev);
64e48160 LD	503	}
	504
	505	if (reg_data) {
	506	err = tps6586x_regulator_set_slew_rate(pdev, id,
	507	reg_data);
	508	if (err < 0) {
	509	dev_err(&pdev->dev,
	510	"Slew rate config failed, e %d\n", err);
884ea557	511	return err;
64e48160 LD	512	}
64e48160 LD	513	}
49610235 MR	514	}
49610235 MR	515
e7973c3c	516	platform_set_drvdata(pdev, rdev);
64e48160	517	return 0;
49610235 MR	518	}
	519
	520	static struct platform_driver tps6586x_regulator_driver = {
	521	.driver = {
ec8da805	522	.name = "tps6586x-regulator",
49610235 MR	523	.owner = THIS_MODULE,
	524	},
	525	.probe = tps6586x_regulator_probe,
49610235 MR	526	};
	527
	528	static int __init tps6586x_regulator_init(void)
	529	{
	530	return platform_driver_register(&tps6586x_regulator_driver);
	531	}
	532	subsys_initcall(tps6586x_regulator_init);
	533
	534	static void __exit tps6586x_regulator_exit(void)
	535	{
	536	platform_driver_unregister(&tps6586x_regulator_driver);
	537	}
	538	module_exit(tps6586x_regulator_exit);
	539
	540	MODULE_LICENSE("GPL");
	541	MODULE_AUTHOR("Mike Rapoport <mike@compulab.co.il>");
	542	MODULE_DESCRIPTION("Regulator Driver for TI TPS6586X PMIC");
	543	MODULE_ALIAS("platform:tps6586x-regulator");