[mirror_ubuntu-hirsute-kernel.git] / drivers / regulator / pv88080-regulator.c

// SPDX-License-Identifier: GPL-2.0+
//
// pv88080-regulator.c - Regulator device driver for PV88080
// Copyright (C) 2016  Powerventure Semiconductor Ltd.

#include <linux/err.h>
#include <linux/i2c.h>
#include <linux/module.h>
#include <linux/of.h>
#include <linux/init.h>
#include <linux/slab.h>
#include <linux/regulator/driver.h>
#include <linux/regulator/machine.h>
#include <linux/regmap.h>
#include <linux/irq.h>
#include <linux/interrupt.h>
#include <linux/regulator/of_regulator.h>
#include "pv88080-regulator.h"

#define PV88080_MAX_REGULATORS	4

/* PV88080 REGULATOR IDs */
enum {
	/* BUCKs */
	PV88080_ID_BUCK1,
	PV88080_ID_BUCK2,
	PV88080_ID_BUCK3,
	PV88080_ID_HVBUCK,
};

enum pv88080_types {
	TYPE_PV88080_AA,
	TYPE_PV88080_BA,
};

struct pv88080_regulator {
	struct regulator_desc desc;
	unsigned int mode_reg;
	unsigned int conf2;
	unsigned int conf5;
};

struct pv88080 {
	struct device *dev;
	struct regmap *regmap;
	struct regulator_dev *rdev[PV88080_MAX_REGULATORS];
	unsigned long type;
	const struct pv88080_compatible_regmap *regmap_config;
};

struct pv88080_buck_voltage {
	int min_uV;
	int max_uV;
	int uV_step;
};

struct pv88080_buck_regmap {
	/* REGS */
	int buck_enable_reg;
	int buck_vsel_reg;
	int buck_mode_reg;
	int buck_limit_reg;
	int buck_vdac_range_reg;
	int buck_vrange_gain_reg;
	/* MASKS */
	int buck_enable_mask;
	int buck_vsel_mask;
	int buck_limit_mask;
};

struct pv88080_compatible_regmap {
	/* BUCK1, 2, 3 */
	struct pv88080_buck_regmap buck_regmap[PV88080_MAX_REGULATORS-1];
	/* HVBUCK */
	int hvbuck_enable_reg;
	int hvbuck_vsel_reg;
	int hvbuck_enable_mask;
	int hvbuck_vsel_mask;
};

static const struct regmap_config pv88080_regmap_config = {
	.reg_bits = 8,
	.val_bits = 8,
};

/* Current limits array (in uA) for BUCK1, BUCK2, BUCK3.
 * Entry indexes corresponds to register values.
 */

static const unsigned int pv88080_buck1_limits[] = {
	3230000, 5130000, 6960000, 8790000
};

static const unsigned int pv88080_buck23_limits[] = {
	1496000, 2393000, 3291000, 4189000
};

static const struct pv88080_buck_voltage pv88080_buck_vol[2] = {
	{
		.min_uV = 600000,
		.max_uV = 1393750,
		.uV_step = 6250,
	},
	{
		.min_uV = 1400000,
		.max_uV = 2193750,
		.uV_step = 6250,
	},
};

static const struct pv88080_compatible_regmap pv88080_aa_regs = {
	/* BUCK1 */
	.buck_regmap[0] = {
		.buck_enable_reg      = PV88080AA_REG_BUCK1_CONF0,
		.buck_vsel_reg        = PV88080AA_REG_BUCK1_CONF0,
		.buck_mode_reg        = PV88080AA_REG_BUCK1_CONF1,
		.buck_limit_reg       = PV88080AA_REG_BUCK1_CONF1,
		.buck_vdac_range_reg  = PV88080AA_REG_BUCK1_CONF2,
		.buck_vrange_gain_reg = PV88080AA_REG_BUCK1_CONF5,
		.buck_enable_mask     = PV88080_BUCK1_EN,
		.buck_vsel_mask       = PV88080_VBUCK1_MASK,
		.buck_limit_mask      = PV88080_BUCK1_ILIM_MASK,
	},
	/* BUCK2 */
	.buck_regmap[1] = {
		.buck_enable_reg      = PV88080AA_REG_BUCK2_CONF0,
		.buck_vsel_reg        = PV88080AA_REG_BUCK2_CONF0,
		.buck_mode_reg        = PV88080AA_REG_BUCK2_CONF1,
		.buck_limit_reg	      = PV88080AA_REG_BUCK2_CONF1,
		.buck_vdac_range_reg  = PV88080AA_REG_BUCK2_CONF2,
		.buck_vrange_gain_reg = PV88080AA_REG_BUCK2_CONF5,
		.buck_enable_mask	  = PV88080_BUCK2_EN,
		.buck_vsel_mask       = PV88080_VBUCK2_MASK,
		.buck_limit_mask      = PV88080_BUCK2_ILIM_MASK,
	},
	/* BUCK3 */
	.buck_regmap[2] = {
		.buck_enable_reg	  = PV88080AA_REG_BUCK3_CONF0,
		.buck_vsel_reg        = PV88080AA_REG_BUCK3_CONF0,
		.buck_mode_reg        = PV88080AA_REG_BUCK3_CONF1,
		.buck_limit_reg	      = PV88080AA_REG_BUCK3_CONF1,
		.buck_vdac_range_reg  = PV88080AA_REG_BUCK3_CONF2,
		.buck_vrange_gain_reg = PV88080AA_REG_BUCK3_CONF5,
		.buck_enable_mask	  = PV88080_BUCK3_EN,
		.buck_vsel_mask       = PV88080_VBUCK3_MASK,
		.buck_limit_mask      = PV88080_BUCK3_ILIM_MASK,
	},
	/* HVBUCK */
	.hvbuck_enable_reg	      = PV88080AA_REG_HVBUCK_CONF2,
	.hvbuck_vsel_reg          = PV88080AA_REG_HVBUCK_CONF1,
	.hvbuck_enable_mask       = PV88080_HVBUCK_EN,
	.hvbuck_vsel_mask         = PV88080_VHVBUCK_MASK,
};

static const struct pv88080_compatible_regmap pv88080_ba_regs = {
	/* BUCK1 */
	.buck_regmap[0] = {
		.buck_enable_reg	  = PV88080BA_REG_BUCK1_CONF0,
		.buck_vsel_reg        = PV88080BA_REG_BUCK1_CONF0,
		.buck_mode_reg        = PV88080BA_REG_BUCK1_CONF1,
		.buck_limit_reg       = PV88080BA_REG_BUCK1_CONF1,
		.buck_vdac_range_reg  = PV88080BA_REG_BUCK1_CONF2,
		.buck_vrange_gain_reg = PV88080BA_REG_BUCK1_CONF5,
		.buck_enable_mask     = PV88080_BUCK1_EN,
		.buck_vsel_mask       = PV88080_VBUCK1_MASK,
		.buck_limit_mask	  = PV88080_BUCK1_ILIM_MASK,
	},
	/* BUCK2 */
	.buck_regmap[1] = {
		.buck_enable_reg	  = PV88080BA_REG_BUCK2_CONF0,
		.buck_vsel_reg        = PV88080BA_REG_BUCK2_CONF0,
		.buck_mode_reg        = PV88080BA_REG_BUCK2_CONF1,
		.buck_limit_reg	      = PV88080BA_REG_BUCK2_CONF1,
		.buck_vdac_range_reg  = PV88080BA_REG_BUCK2_CONF2,
		.buck_vrange_gain_reg = PV88080BA_REG_BUCK2_CONF5,
		.buck_enable_mask	  = PV88080_BUCK2_EN,
		.buck_vsel_mask       = PV88080_VBUCK2_MASK,
		.buck_limit_mask	  = PV88080_BUCK2_ILIM_MASK,
	},
	/* BUCK3 */
	.buck_regmap[2] = {
		.buck_enable_reg	  = PV88080BA_REG_BUCK3_CONF0,
		.buck_vsel_reg        = PV88080BA_REG_BUCK3_CONF0,
		.buck_mode_reg        = PV88080BA_REG_BUCK3_CONF1,
		.buck_limit_reg	      = PV88080BA_REG_BUCK3_CONF1,
		.buck_vdac_range_reg  = PV88080BA_REG_BUCK3_CONF2,
		.buck_vrange_gain_reg = PV88080BA_REG_BUCK3_CONF5,
		.buck_enable_mask	  = PV88080_BUCK3_EN,
		.buck_vsel_mask       = PV88080_VBUCK3_MASK,
		.buck_limit_mask	  = PV88080_BUCK3_ILIM_MASK,
	},
	/* HVBUCK */
	.hvbuck_enable_reg	      = PV88080BA_REG_HVBUCK_CONF2,
	.hvbuck_vsel_reg          = PV88080BA_REG_HVBUCK_CONF1,
	.hvbuck_enable_mask       = PV88080_HVBUCK_EN,
	.hvbuck_vsel_mask		  = PV88080_VHVBUCK_MASK,
};

#ifdef CONFIG_OF
static const struct of_device_id pv88080_dt_ids[] = {
	{ .compatible = "pvs,pv88080",    .data = (void *)TYPE_PV88080_AA },
	{ .compatible = "pvs,pv88080-aa", .data = (void *)TYPE_PV88080_AA },
	{ .compatible = "pvs,pv88080-ba", .data = (void *)TYPE_PV88080_BA },
	{},
};
MODULE_DEVICE_TABLE(of, pv88080_dt_ids);
#endif

static unsigned int pv88080_buck_get_mode(struct regulator_dev *rdev)
{
	struct pv88080_regulator *info = rdev_get_drvdata(rdev);
	unsigned int data;
	int ret, mode = 0;

	ret = regmap_read(rdev->regmap, info->mode_reg, &data);
	if (ret < 0)
		return ret;

	switch (data & PV88080_BUCK1_MODE_MASK) {
	case PV88080_BUCK_MODE_SYNC:
		mode = REGULATOR_MODE_FAST;
		break;
	case PV88080_BUCK_MODE_AUTO:
		mode = REGULATOR_MODE_NORMAL;
		break;
	case PV88080_BUCK_MODE_SLEEP:
		mode = REGULATOR_MODE_STANDBY;
		break;
	default:
		return -EINVAL;
	}

	return mode;
}

static int pv88080_buck_set_mode(struct regulator_dev *rdev,
					unsigned int mode)
{
	struct pv88080_regulator *info = rdev_get_drvdata(rdev);
	int val = 0;

	switch (mode) {
	case REGULATOR_MODE_FAST:
		val = PV88080_BUCK_MODE_SYNC;
		break;
	case REGULATOR_MODE_NORMAL:
		val = PV88080_BUCK_MODE_AUTO;
		break;
	case REGULATOR_MODE_STANDBY:
		val = PV88080_BUCK_MODE_SLEEP;
		break;
	default:
		return -EINVAL;
	}

	return regmap_update_bits(rdev->regmap, info->mode_reg,
					PV88080_BUCK1_MODE_MASK, val);
}

static const struct regulator_ops pv88080_buck_ops = {
	.get_mode = pv88080_buck_get_mode,
	.set_mode = pv88080_buck_set_mode,
	.enable = regulator_enable_regmap,
	.disable = regulator_disable_regmap,
	.is_enabled = regulator_is_enabled_regmap,
	.set_voltage_sel = regulator_set_voltage_sel_regmap,
	.get_voltage_sel = regulator_get_voltage_sel_regmap,
	.list_voltage = regulator_list_voltage_linear,
	.set_current_limit = regulator_set_current_limit_regmap,
	.get_current_limit = regulator_get_current_limit_regmap,
};

static const struct regulator_ops pv88080_hvbuck_ops = {
	.enable = regulator_enable_regmap,
	.disable = regulator_disable_regmap,
	.is_enabled = regulator_is_enabled_regmap,
	.set_voltage_sel = regulator_set_voltage_sel_regmap,
	.get_voltage_sel = regulator_get_voltage_sel_regmap,
	.list_voltage = regulator_list_voltage_linear,
};

#define PV88080_BUCK(chip, regl_name, min, step, max, limits_array) \
{\
	.desc	=	{\
		.id = chip##_ID_##regl_name,\
		.name = __stringify(chip##_##regl_name),\
		.of_match = of_match_ptr(#regl_name),\
		.regulators_node = of_match_ptr("regulators"),\
		.type = REGULATOR_VOLTAGE,\
		.owner = THIS_MODULE,\
		.ops = &pv88080_buck_ops,\
		.min_uV = min, \
		.uV_step = step, \
		.n_voltages = ((max) - (min))/(step) + 1, \
		.curr_table = limits_array, \
		.n_current_limits = ARRAY_SIZE(limits_array), \
	},\
}

#define PV88080_HVBUCK(chip, regl_name, min, step, max) \
{\
	.desc	=	{\
		.id = chip##_ID_##regl_name,\
		.name = __stringify(chip##_##regl_name),\
		.of_match = of_match_ptr(#regl_name),\
		.regulators_node = of_match_ptr("regulators"),\
		.type = REGULATOR_VOLTAGE,\
		.owner = THIS_MODULE,\
		.ops = &pv88080_hvbuck_ops,\
		.min_uV = min, \
		.uV_step = step, \
		.n_voltages = ((max) - (min))/(step) + 1, \
	},\
}

static struct pv88080_regulator pv88080_regulator_info[] = {
	PV88080_BUCK(PV88080, BUCK1, 600000, 6250, 1393750,
		pv88080_buck1_limits),
	PV88080_BUCK(PV88080, BUCK2, 600000, 6250, 1393750,
		pv88080_buck23_limits),
	PV88080_BUCK(PV88080, BUCK3, 600000, 6250, 1393750,
		pv88080_buck23_limits),
	PV88080_HVBUCK(PV88080, HVBUCK, 0, 5000, 1275000),
};

static irqreturn_t pv88080_irq_handler(int irq, void *data)
{
	struct pv88080 *chip = data;
	int i, reg_val, err, ret = IRQ_NONE;

	err = regmap_read(chip->regmap, PV88080_REG_EVENT_A, &reg_val);
	if (err < 0)
		goto error_i2c;

	if (reg_val & PV88080_E_VDD_FLT) {
		for (i = 0; i < PV88080_MAX_REGULATORS; i++) {
			if (chip->rdev[i] != NULL) {
			        regulator_lock(chip->rdev[i]);
				regulator_notifier_call_chain(chip->rdev[i],
					REGULATOR_EVENT_UNDER_VOLTAGE,
					NULL);
			        regulator_unlock(chip->rdev[i]);
			}
		}

		err = regmap_write(chip->regmap, PV88080_REG_EVENT_A,
			PV88080_E_VDD_FLT);
		if (err < 0)
			goto error_i2c;

		ret = IRQ_HANDLED;
	}

	if (reg_val & PV88080_E_OVER_TEMP) {
		for (i = 0; i < PV88080_MAX_REGULATORS; i++) {
			if (chip->rdev[i] != NULL) {
			        regulator_lock(chip->rdev[i]);
				regulator_notifier_call_chain(chip->rdev[i],
					REGULATOR_EVENT_OVER_TEMP,
					NULL);
			        regulator_unlock(chip->rdev[i]);
			}
		}

		err = regmap_write(chip->regmap, PV88080_REG_EVENT_A,
			PV88080_E_OVER_TEMP);
		if (err < 0)
			goto error_i2c;

		ret = IRQ_HANDLED;
	}

	return ret;

error_i2c:
	dev_err(chip->dev, "I2C error : %d\n", err);
	return IRQ_NONE;
}

/*
 * I2C driver interface functions
 */
static int pv88080_i2c_probe(struct i2c_client *i2c,
		const struct i2c_device_id *id)
{
	struct regulator_init_data *init_data = dev_get_platdata(&i2c->dev);
	struct pv88080 *chip;
	const struct pv88080_compatible_regmap *regmap_config;
	const struct of_device_id *match;
	struct regulator_config config = { };
	int i, error, ret;
	unsigned int conf2, conf5;

	chip = devm_kzalloc(&i2c->dev, sizeof(struct pv88080), GFP_KERNEL);
	if (!chip)
		return -ENOMEM;

	chip->dev = &i2c->dev;
	chip->regmap = devm_regmap_init_i2c(i2c, &pv88080_regmap_config);
	if (IS_ERR(chip->regmap)) {
		error = PTR_ERR(chip->regmap);
		dev_err(chip->dev, "Failed to allocate register map: %d\n",
			error);
		return error;
	}

	if (i2c->dev.of_node) {
		match = of_match_node(pv88080_dt_ids, i2c->dev.of_node);
		if (!match) {
			dev_err(chip->dev, "Failed to get of_match_node\n");
			return -EINVAL;
		}
		chip->type = (unsigned long)match->data;
	} else {
		chip->type = id->driver_data;
	}

	i2c_set_clientdata(i2c, chip);

	if (i2c->irq != 0) {
		ret = regmap_write(chip->regmap, PV88080_REG_MASK_A, 0xFF);
		if (ret < 0) {
			dev_err(chip->dev,
				"Failed to mask A reg: %d\n", ret);
			return ret;
		}
		ret = regmap_write(chip->regmap, PV88080_REG_MASK_B, 0xFF);
		if (ret < 0) {
			dev_err(chip->dev,
				"Failed to mask B reg: %d\n", ret);
			return ret;
		}
		ret = regmap_write(chip->regmap, PV88080_REG_MASK_C, 0xFF);
		if (ret < 0) {
			dev_err(chip->dev,
				"Failed to mask C reg: %d\n", ret);
			return ret;
		}

		ret = devm_request_threaded_irq(&i2c->dev, i2c->irq, NULL,
					pv88080_irq_handler,
					IRQF_TRIGGER_LOW|IRQF_ONESHOT,
					"pv88080", chip);
		if (ret != 0) {
			dev_err(chip->dev, "Failed to request IRQ: %d\n",
				i2c->irq);
			return ret;
		}

		ret = regmap_update_bits(chip->regmap, PV88080_REG_MASK_A,
			PV88080_M_VDD_FLT | PV88080_M_OVER_TEMP, 0);
		if (ret < 0) {
			dev_err(chip->dev,
				"Failed to update mask reg: %d\n", ret);
			return ret;
		}
	} else {
		dev_warn(chip->dev, "No IRQ configured\n");
	}

	switch (chip->type) {
	case TYPE_PV88080_AA:
		chip->regmap_config = &pv88080_aa_regs;
		break;
	case TYPE_PV88080_BA:
		chip->regmap_config = &pv88080_ba_regs;
		break;
	}

	regmap_config = chip->regmap_config;
	config.dev = chip->dev;
	config.regmap = chip->regmap;

	/* Registeration for BUCK1, 2, 3 */
	for (i = 0; i < PV88080_MAX_REGULATORS-1; i++) {
		if (init_data)
			config.init_data = &init_data[i];

		pv88080_regulator_info[i].desc.csel_reg
			= regmap_config->buck_regmap[i].buck_limit_reg;
		pv88080_regulator_info[i].desc.csel_mask
			= regmap_config->buck_regmap[i].buck_limit_mask;
		pv88080_regulator_info[i].mode_reg
			= regmap_config->buck_regmap[i].buck_mode_reg;
		pv88080_regulator_info[i].conf2
			= regmap_config->buck_regmap[i].buck_vdac_range_reg;
		pv88080_regulator_info[i].conf5
			= regmap_config->buck_regmap[i].buck_vrange_gain_reg;
		pv88080_regulator_info[i].desc.enable_reg
			= regmap_config->buck_regmap[i].buck_enable_reg;
		pv88080_regulator_info[i].desc.enable_mask
			= regmap_config->buck_regmap[i].buck_enable_mask;
		pv88080_regulator_info[i].desc.vsel_reg
			= regmap_config->buck_regmap[i].buck_vsel_reg;
		pv88080_regulator_info[i].desc.vsel_mask
			= regmap_config->buck_regmap[i].buck_vsel_mask;

		ret = regmap_read(chip->regmap,
				pv88080_regulator_info[i].conf2, &conf2);
		if (ret < 0)
			return ret;
		conf2 = ((conf2 >> PV88080_BUCK_VDAC_RANGE_SHIFT) &
			PV88080_BUCK_VDAC_RANGE_MASK);

		ret = regmap_read(chip->regmap,
				pv88080_regulator_info[i].conf5, &conf5);
		if (ret < 0)
			return ret;
		conf5 = ((conf5 >> PV88080_BUCK_VRANGE_GAIN_SHIFT) &
			PV88080_BUCK_VRANGE_GAIN_MASK);

		pv88080_regulator_info[i].desc.min_uV =
			pv88080_buck_vol[conf2].min_uV * (conf5+1);
		pv88080_regulator_info[i].desc.uV_step =
			pv88080_buck_vol[conf2].uV_step * (conf5+1);
		pv88080_regulator_info[i].desc.n_voltages =
			((pv88080_buck_vol[conf2].max_uV * (conf5+1))
			- (pv88080_regulator_info[i].desc.min_uV))
			/(pv88080_regulator_info[i].desc.uV_step) + 1;

		config.driver_data = (void *)&pv88080_regulator_info[i];
		chip->rdev[i] = devm_regulator_register(chip->dev,
			&pv88080_regulator_info[i].desc, &config);
		if (IS_ERR(chip->rdev[i])) {
			dev_err(chip->dev,
				"Failed to register PV88080 regulator\n");
			return PTR_ERR(chip->rdev[i]);
		}
	}

	pv88080_regulator_info[PV88080_ID_HVBUCK].desc.enable_reg
		= regmap_config->hvbuck_enable_reg;
	pv88080_regulator_info[PV88080_ID_HVBUCK].desc.enable_mask
		= regmap_config->hvbuck_enable_mask;
	pv88080_regulator_info[PV88080_ID_HVBUCK].desc.vsel_reg
		= regmap_config->hvbuck_vsel_reg;
	pv88080_regulator_info[PV88080_ID_HVBUCK].desc.vsel_mask
		= regmap_config->hvbuck_vsel_mask;

	/* Registeration for HVBUCK */
	if (init_data)
		config.init_data = &init_data[PV88080_ID_HVBUCK];

	config.driver_data = (void *)&pv88080_regulator_info[PV88080_ID_HVBUCK];
	chip->rdev[PV88080_ID_HVBUCK] = devm_regulator_register(chip->dev,
		&pv88080_regulator_info[PV88080_ID_HVBUCK].desc, &config);
	if (IS_ERR(chip->rdev[PV88080_ID_HVBUCK])) {
		dev_err(chip->dev, "Failed to register PV88080 regulator\n");
		return PTR_ERR(chip->rdev[PV88080_ID_HVBUCK]);
	}

	return 0;
}

static const struct i2c_device_id pv88080_i2c_id[] = {
	{ "pv88080",    TYPE_PV88080_AA },
	{ "pv88080-aa", TYPE_PV88080_AA },
	{ "pv88080-ba", TYPE_PV88080_BA },
	{},
};
MODULE_DEVICE_TABLE(i2c, pv88080_i2c_id);

static struct i2c_driver pv88080_regulator_driver = {
	.driver = {
		.name = "pv88080",
		.of_match_table = of_match_ptr(pv88080_dt_ids),
	},
	.probe = pv88080_i2c_probe,
	.id_table = pv88080_i2c_id,
};

module_i2c_driver(pv88080_regulator_driver);

MODULE_AUTHOR("James Ban <James.Ban.opensource@diasemi.com>");
MODULE_DESCRIPTION("Regulator device driver for Powerventure PV88080");
MODULE_LICENSE("GPL");
Commit	Line	Data
0ae3b061 AL	1	// SPDX-License-Identifier: GPL-2.0+
	2	//
	3	// pv88080-regulator.c - Regulator device driver for PV88080
	4	// Copyright (C) 2016 Powerventure Semiconductor Ltd.
99cf3af5 JB	5
99cf3af5 JB	6	#include <linux/err.h>
99cf3af5 JB	7	#include <linux/i2c.h>
99cf3af5 JB	8	#include <linux/module.h>
5ff00f6a	9	#include <linux/of.h>
99cf3af5 JB	10	#include <linux/init.h>
	11	#include <linux/slab.h>
	12	#include <linux/regulator/driver.h>
	13	#include <linux/regulator/machine.h>
	14	#include <linux/regmap.h>
	15	#include <linux/irq.h>
	16	#include <linux/interrupt.h>
	17	#include <linux/regulator/of_regulator.h>
99cf3af5 JB	18	#include "pv88080-regulator.h"
99cf3af5 JB	19
5ff00f6a	20	#define PV88080_MAX_REGULATORS 4
99cf3af5 JB	21
	22	/* PV88080 REGULATOR IDs */
	23	enum {
	24	/* BUCKs */
	25	PV88080_ID_BUCK1,
	26	PV88080_ID_BUCK2,
	27	PV88080_ID_BUCK3,
5ff00f6a EJ	28	PV88080_ID_HVBUCK,
	29	};
	30
	31	enum pv88080_types {
	32	TYPE_PV88080_AA,
	33	TYPE_PV88080_BA,
99cf3af5 JB	34	};
	35
	36	struct pv88080_regulator {
	37	struct regulator_desc desc;
5ff00f6a	38	unsigned int mode_reg;
99cf3af5 JB	39	unsigned int conf2;
	40	unsigned int conf5;
	41	};
	42
	43	struct pv88080 {
	44	struct device *dev;
	45	struct regmap *regmap;
	46	struct regulator_dev *rdev[PV88080_MAX_REGULATORS];
5ff00f6a EJ	47	unsigned long type;
5ff00f6a EJ	48	const struct pv88080_compatible_regmap *regmap_config;
99cf3af5 JB	49	};
	50
	51	struct pv88080_buck_voltage {
	52	int min_uV;
	53	int max_uV;
	54	int uV_step;
	55	};
	56
5ff00f6a EJ	57	struct pv88080_buck_regmap {
	58	/* REGS */
	59	int buck_enable_reg;
	60	int buck_vsel_reg;
	61	int buck_mode_reg;
	62	int buck_limit_reg;
	63	int buck_vdac_range_reg;
	64	int buck_vrange_gain_reg;
	65	/* MASKS */
	66	int buck_enable_mask;
	67	int buck_vsel_mask;
	68	int buck_limit_mask;
	69	};
	70
	71	struct pv88080_compatible_regmap {
	72	/* BUCK1, 2, 3 */
	73	struct pv88080_buck_regmap buck_regmap[PV88080_MAX_REGULATORS-1];
	74	/* HVBUCK */
	75	int hvbuck_enable_reg;
	76	int hvbuck_vsel_reg;
	77	int hvbuck_enable_mask;
	78	int hvbuck_vsel_mask;
	79	};
	80
99cf3af5 JB	81	static const struct regmap_config pv88080_regmap_config = {
	82	.reg_bits = 8,
	83	.val_bits = 8,
	84	};
	85
	86	/* Current limits array (in uA) for BUCK1, BUCK2, BUCK3.
	87	* Entry indexes corresponds to register values.
	88	*/
	89
989a99bc	90	static const unsigned int pv88080_buck1_limits[] = {
99cf3af5 JB	91	3230000, 5130000, 6960000, 8790000
	92	};
	93
989a99bc	94	static const unsigned int pv88080_buck23_limits[] = {
99cf3af5 JB	95	1496000, 2393000, 3291000, 4189000
	96	};
	97
	98	static const struct pv88080_buck_voltage pv88080_buck_vol[2] = {
	99	{
	100	.min_uV = 600000,
	101	.max_uV = 1393750,
	102	.uV_step = 6250,
	103	},
	104	{
	105	.min_uV = 1400000,
	106	.max_uV = 2193750,
	107	.uV_step = 6250,
	108	},
	109	};
	110
5ff00f6a EJ	111	static const struct pv88080_compatible_regmap pv88080_aa_regs = {
	112	/* BUCK1 */
	113	.buck_regmap[0] = {
	114	.buck_enable_reg = PV88080AA_REG_BUCK1_CONF0,
	115	.buck_vsel_reg = PV88080AA_REG_BUCK1_CONF0,
	116	.buck_mode_reg = PV88080AA_REG_BUCK1_CONF1,
	117	.buck_limit_reg = PV88080AA_REG_BUCK1_CONF1,
	118	.buck_vdac_range_reg = PV88080AA_REG_BUCK1_CONF2,
	119	.buck_vrange_gain_reg = PV88080AA_REG_BUCK1_CONF5,
	120	.buck_enable_mask = PV88080_BUCK1_EN,
	121	.buck_vsel_mask = PV88080_VBUCK1_MASK,
	122	.buck_limit_mask = PV88080_BUCK1_ILIM_MASK,
	123	},
	124	/* BUCK2 */
	125	.buck_regmap[1] = {
	126	.buck_enable_reg = PV88080AA_REG_BUCK2_CONF0,
	127	.buck_vsel_reg = PV88080AA_REG_BUCK2_CONF0,
	128	.buck_mode_reg = PV88080AA_REG_BUCK2_CONF1,
	129	.buck_limit_reg = PV88080AA_REG_BUCK2_CONF1,
	130	.buck_vdac_range_reg = PV88080AA_REG_BUCK2_CONF2,
	131	.buck_vrange_gain_reg = PV88080AA_REG_BUCK2_CONF5,
	132	.buck_enable_mask = PV88080_BUCK2_EN,
	133	.buck_vsel_mask = PV88080_VBUCK2_MASK,
	134	.buck_limit_mask = PV88080_BUCK2_ILIM_MASK,
	135	},
	136	/* BUCK3 */
	137	.buck_regmap[2] = {
	138	.buck_enable_reg = PV88080AA_REG_BUCK3_CONF0,
	139	.buck_vsel_reg = PV88080AA_REG_BUCK3_CONF0,
	140	.buck_mode_reg = PV88080AA_REG_BUCK3_CONF1,
	141	.buck_limit_reg = PV88080AA_REG_BUCK3_CONF1,
	142	.buck_vdac_range_reg = PV88080AA_REG_BUCK3_CONF2,
	143	.buck_vrange_gain_reg = PV88080AA_REG_BUCK3_CONF5,
	144	.buck_enable_mask = PV88080_BUCK3_EN,
	145	.buck_vsel_mask = PV88080_VBUCK3_MASK,
	146	.buck_limit_mask = PV88080_BUCK3_ILIM_MASK,
	147	},
	148	/* HVBUCK */
	149	.hvbuck_enable_reg = PV88080AA_REG_HVBUCK_CONF2,
	150	.hvbuck_vsel_reg = PV88080AA_REG_HVBUCK_CONF1,
	151	.hvbuck_enable_mask = PV88080_HVBUCK_EN,
	152	.hvbuck_vsel_mask = PV88080_VHVBUCK_MASK,
	153	};
	154
	155	static const struct pv88080_compatible_regmap pv88080_ba_regs = {
	156	/* BUCK1 */
	157	.buck_regmap[0] = {
	158	.buck_enable_reg = PV88080BA_REG_BUCK1_CONF0,
	159	.buck_vsel_reg = PV88080BA_REG_BUCK1_CONF0,
	160	.buck_mode_reg = PV88080BA_REG_BUCK1_CONF1,
	161	.buck_limit_reg = PV88080BA_REG_BUCK1_CONF1,
	162	.buck_vdac_range_reg = PV88080BA_REG_BUCK1_CONF2,
	163	.buck_vrange_gain_reg = PV88080BA_REG_BUCK1_CONF5,
	164	.buck_enable_mask = PV88080_BUCK1_EN,
	165	.buck_vsel_mask = PV88080_VBUCK1_MASK,
	166	.buck_limit_mask = PV88080_BUCK1_ILIM_MASK,
	167	},
	168	/* BUCK2 */
	169	.buck_regmap[1] = {
	170	.buck_enable_reg = PV88080BA_REG_BUCK2_CONF0,
	171	.buck_vsel_reg = PV88080BA_REG_BUCK2_CONF0,
	172	.buck_mode_reg = PV88080BA_REG_BUCK2_CONF1,
	173	.buck_limit_reg = PV88080BA_REG_BUCK2_CONF1,
	174	.buck_vdac_range_reg = PV88080BA_REG_BUCK2_CONF2,
175	.buck_vrange_gain_reg = PV88080BA_REG_BUCK2_CONF5,
176	.buck_enable_mask = PV88080_BUCK2_EN,
177	.buck_vsel_mask = PV88080_VBUCK2_MASK,
178	.buck_limit_mask = PV88080_BUCK2_ILIM_MASK,
179	},
180	/* BUCK3 */
181	.buck_regmap[2] = {
182	.buck_enable_reg = PV88080BA_REG_BUCK3_CONF0,
183	.buck_vsel_reg = PV88080BA_REG_BUCK3_CONF0,
184	.buck_mode_reg = PV88080BA_REG_BUCK3_CONF1,
185	.buck_limit_reg = PV88080BA_REG_BUCK3_CONF1,
186	.buck_vdac_range_reg = PV88080BA_REG_BUCK3_CONF2,
187	.buck_vrange_gain_reg = PV88080BA_REG_BUCK3_CONF5,
188	.buck_enable_mask = PV88080_BUCK3_EN,
189	.buck_vsel_mask = PV88080_VBUCK3_MASK,
190	.buck_limit_mask = PV88080_BUCK3_ILIM_MASK,
191	},
192	/* HVBUCK */
193	.hvbuck_enable_reg = PV88080BA_REG_HVBUCK_CONF2,
194	.hvbuck_vsel_reg = PV88080BA_REG_HVBUCK_CONF1,
195	.hvbuck_enable_mask = PV88080_HVBUCK_EN,
196	.hvbuck_vsel_mask = PV88080_VHVBUCK_MASK,
197	};
198
199	#ifdef CONFIG_OF
200	static const struct of_device_id pv88080_dt_ids[] = {
201	{ .compatible = "pvs,pv88080", .data = (void *)TYPE_PV88080_AA },
202	{ .compatible = "pvs,pv88080-aa", .data = (void *)TYPE_PV88080_AA },
203	{ .compatible = "pvs,pv88080-ba", .data = (void *)TYPE_PV88080_BA },
204	{},
205	};
206	MODULE_DEVICE_TABLE(of, pv88080_dt_ids);
207	#endif
208
99cf3af5 JB	209	static unsigned int pv88080_buck_get_mode(struct regulator_dev *rdev)
	210	{
	211	struct pv88080_regulator *info = rdev_get_drvdata(rdev);
	212	unsigned int data;
	213	int ret, mode = 0;
	214
5ff00f6a	215	ret = regmap_read(rdev->regmap, info->mode_reg, &data);
99cf3af5 JB	216	if (ret < 0)
	217	return ret;
	218
	219	switch (data & PV88080_BUCK1_MODE_MASK) {
	220	case PV88080_BUCK_MODE_SYNC:
	221	mode = REGULATOR_MODE_FAST;
	222	break;
	223	case PV88080_BUCK_MODE_AUTO:
	224	mode = REGULATOR_MODE_NORMAL;
	225	break;
	226	case PV88080_BUCK_MODE_SLEEP:
	227	mode = REGULATOR_MODE_STANDBY;
	228	break;
	229	default:
	230	return -EINVAL;
	231	}
	232
	233	return mode;
	234	}
	235
	236	static int pv88080_buck_set_mode(struct regulator_dev *rdev,
	237	unsigned int mode)
	238	{
	239	struct pv88080_regulator *info = rdev_get_drvdata(rdev);
	240	int val = 0;
	241
	242	switch (mode) {
	243	case REGULATOR_MODE_FAST:
	244	val = PV88080_BUCK_MODE_SYNC;
	245	break;
	246	case REGULATOR_MODE_NORMAL:
	247	val = PV88080_BUCK_MODE_AUTO;
	248	break;
	249	case REGULATOR_MODE_STANDBY:
	250	val = PV88080_BUCK_MODE_SLEEP;
	251	break;
	252	default:
	253	return -EINVAL;
	254	}
	255
5ff00f6a	256	return regmap_update_bits(rdev->regmap, info->mode_reg,
99cf3af5 JB	257	PV88080_BUCK1_MODE_MASK, val);
	258	}
	259
d4fdf5e1	260	static const struct regulator_ops pv88080_buck_ops = {
99cf3af5 JB	261	.get_mode = pv88080_buck_get_mode,
	262	.set_mode = pv88080_buck_set_mode,
	263	.enable = regulator_enable_regmap,
	264	.disable = regulator_disable_regmap,
	265	.is_enabled = regulator_is_enabled_regmap,
	266	.set_voltage_sel = regulator_set_voltage_sel_regmap,
	267	.get_voltage_sel = regulator_get_voltage_sel_regmap,
	268	.list_voltage = regulator_list_voltage_linear,
989a99bc AL	269	.set_current_limit = regulator_set_current_limit_regmap,
989a99bc AL	270	.get_current_limit = regulator_get_current_limit_regmap,
99cf3af5 JB	271	};
99cf3af5 JB	272
d4fdf5e1	273	static const struct regulator_ops pv88080_hvbuck_ops = {
5ff00f6a EJ	274	.enable = regulator_enable_regmap,
	275	.disable = regulator_disable_regmap,
	276	.is_enabled = regulator_is_enabled_regmap,
	277	.set_voltage_sel = regulator_set_voltage_sel_regmap,
	278	.get_voltage_sel = regulator_get_voltage_sel_regmap,
	279	.list_voltage = regulator_list_voltage_linear,
	280	};
	281
99cf3af5 JB	282	#define PV88080_BUCK(chip, regl_name, min, step, max, limits_array) \
	283	{\
	284	.desc = {\
	285	.id = chip##_ID_##regl_name,\
	286	.name = __stringify(chip##_##regl_name),\
	287	.of_match = of_match_ptr(#regl_name),\
	288	.regulators_node = of_match_ptr("regulators"),\
	289	.type = REGULATOR_VOLTAGE,\
	290	.owner = THIS_MODULE,\
	291	.ops = &pv88080_buck_ops,\
	292	.min_uV = min, \
	293	.uV_step = step, \
	294	.n_voltages = ((max) - (min))/(step) + 1, \
989a99bc AL	295	.curr_table = limits_array, \
989a99bc AL	296	.n_current_limits = ARRAY_SIZE(limits_array), \
99cf3af5	297	},\
5ff00f6a EJ	298	}
	299
	300	#define PV88080_HVBUCK(chip, regl_name, min, step, max) \
	301	{\
	302	.desc = {\
	303	.id = chip##_ID_##regl_name,\
	304	.name = __stringify(chip##_##regl_name),\
	305	.of_match = of_match_ptr(#regl_name),\
	306	.regulators_node = of_match_ptr("regulators"),\
	307	.type = REGULATOR_VOLTAGE,\
	308	.owner = THIS_MODULE,\
	309	.ops = &pv88080_hvbuck_ops,\
	310	.min_uV = min, \
	311	.uV_step = step, \
	312	.n_voltages = ((max) - (min))/(step) + 1, \
	313	},\
99cf3af5 JB	314	}
	315
	316	static struct pv88080_regulator pv88080_regulator_info[] = {
	317	PV88080_BUCK(PV88080, BUCK1, 600000, 6250, 1393750,
	318	pv88080_buck1_limits),
	319	PV88080_BUCK(PV88080, BUCK2, 600000, 6250, 1393750,
	320	pv88080_buck23_limits),
	321	PV88080_BUCK(PV88080, BUCK3, 600000, 6250, 1393750,
	322	pv88080_buck23_limits),
5ff00f6a	323	PV88080_HVBUCK(PV88080, HVBUCK, 0, 5000, 1275000),
99cf3af5 JB	324	};
	325
	326	static irqreturn_t pv88080_irq_handler(int irq, void *data)
	327	{
	328	struct pv88080 *chip = data;
	329	int i, reg_val, err, ret = IRQ_NONE;
	330
	331	err = regmap_read(chip->regmap, PV88080_REG_EVENT_A, &reg_val);
	332	if (err < 0)
	333	goto error_i2c;
	334
	335	if (reg_val & PV88080_E_VDD_FLT) {
	336	for (i = 0; i < PV88080_MAX_REGULATORS; i++) {
	337	if (chip->rdev[i] != NULL) {
1867af94	338	regulator_lock(chip->rdev[i]);
99cf3af5 JB	339	regulator_notifier_call_chain(chip->rdev[i],
	340	REGULATOR_EVENT_UNDER_VOLTAGE,
	341	NULL);
1867af94	342	regulator_unlock(chip->rdev[i]);
99cf3af5 JB	343	}
	344	}
	345
	346	err = regmap_write(chip->regmap, PV88080_REG_EVENT_A,
	347	PV88080_E_VDD_FLT);
	348	if (err < 0)
	349	goto error_i2c;
	350
	351	ret = IRQ_HANDLED;
	352	}
	353
	354	if (reg_val & PV88080_E_OVER_TEMP) {
	355	for (i = 0; i < PV88080_MAX_REGULATORS; i++) {
	356	if (chip->rdev[i] != NULL) {
1867af94	357	regulator_lock(chip->rdev[i]);
99cf3af5 JB	358	regulator_notifier_call_chain(chip->rdev[i],
	359	REGULATOR_EVENT_OVER_TEMP,
	360	NULL);
1867af94	361	regulator_unlock(chip->rdev[i]);
99cf3af5 JB	362	}
	363	}
	364
	365	err = regmap_write(chip->regmap, PV88080_REG_EVENT_A,
	366	PV88080_E_OVER_TEMP);
	367	if (err < 0)
	368	goto error_i2c;
	369
	370	ret = IRQ_HANDLED;
	371	}
	372
	373	return ret;
	374
	375	error_i2c:
	376	dev_err(chip->dev, "I2C error : %d\n", err);
	377	return IRQ_NONE;
	378	}
	379
	380	/*
	381	* I2C driver interface functions
	382	*/
	383	static int pv88080_i2c_probe(struct i2c_client *i2c,
	384	const struct i2c_device_id *id)
	385	{
	386	struct regulator_init_data *init_data = dev_get_platdata(&i2c->dev);
	387	struct pv88080 *chip;
5ff00f6a EJ	388	const struct pv88080_compatible_regmap *regmap_config;
5ff00f6a EJ	389	const struct of_device_id *match;
99cf3af5 JB	390	struct regulator_config config = { };
	391	int i, error, ret;
	392	unsigned int conf2, conf5;
	393
	394	chip = devm_kzalloc(&i2c->dev, sizeof(struct pv88080), GFP_KERNEL);
	395	if (!chip)
	396	return -ENOMEM;
	397
	398	chip->dev = &i2c->dev;
	399	chip->regmap = devm_regmap_init_i2c(i2c, &pv88080_regmap_config);
	400	if (IS_ERR(chip->regmap)) {
	401	error = PTR_ERR(chip->regmap);
	402	dev_err(chip->dev, "Failed to allocate register map: %d\n",
	403	error);
	404	return error;
	405	}
	406
5ff00f6a EJ	407	if (i2c->dev.of_node) {
	408	match = of_match_node(pv88080_dt_ids, i2c->dev.of_node);
	409	if (!match) {
	410	dev_err(chip->dev, "Failed to get of_match_node\n");
	411	return -EINVAL;
	412	}
	413	chip->type = (unsigned long)match->data;
	414	} else {
	415	chip->type = id->driver_data;
	416	}
	417
99cf3af5 JB	418	i2c_set_clientdata(i2c, chip);
	419
	420	if (i2c->irq != 0) {
	421	ret = regmap_write(chip->regmap, PV88080_REG_MASK_A, 0xFF);
	422	if (ret < 0) {
	423	dev_err(chip->dev,
	424	"Failed to mask A reg: %d\n", ret);
	425	return ret;
	426	}
	427	ret = regmap_write(chip->regmap, PV88080_REG_MASK_B, 0xFF);
	428	if (ret < 0) {
	429	dev_err(chip->dev,
	430	"Failed to mask B reg: %d\n", ret);
	431	return ret;
	432	}
	433	ret = regmap_write(chip->regmap, PV88080_REG_MASK_C, 0xFF);
	434	if (ret < 0) {
	435	dev_err(chip->dev,
	436	"Failed to mask C reg: %d\n", ret);
	437	return ret;
	438	}
	439
	440	ret = devm_request_threaded_irq(&i2c->dev, i2c->irq, NULL,
	441	pv88080_irq_handler,
	442	IRQF_TRIGGER_LOW\|IRQF_ONESHOT,
	443	"pv88080", chip);
	444	if (ret != 0) {
	445	dev_err(chip->dev, "Failed to request IRQ: %d\n",
	446	i2c->irq);
	447	return ret;
	448	}
	449
	450	ret = regmap_update_bits(chip->regmap, PV88080_REG_MASK_A,
	451	PV88080_M_VDD_FLT \| PV88080_M_OVER_TEMP, 0);
	452	if (ret < 0) {
	453	dev_err(chip->dev,
	454	"Failed to update mask reg: %d\n", ret);
	455	return ret;
	456	}
99cf3af5 JB	457	} else {
	458	dev_warn(chip->dev, "No IRQ configured\n");
	459	}
	460
5ff00f6a EJ	461	switch (chip->type) {
	462	case TYPE_PV88080_AA:
	463	chip->regmap_config = &pv88080_aa_regs;
	464	break;
	465	case TYPE_PV88080_BA:
	466	chip->regmap_config = &pv88080_ba_regs;
	467	break;
	468	}
	469
	470	regmap_config = chip->regmap_config;
99cf3af5 JB	471	config.dev = chip->dev;
	472	config.regmap = chip->regmap;
	473
5ff00f6a EJ	474	/* Registeration for BUCK1, 2, 3 */
5ff00f6a EJ	475	for (i = 0; i < PV88080_MAX_REGULATORS-1; i++) {
99cf3af5 JB	476	if (init_data)
	477	config.init_data = &init_data[i];
	478
989a99bc	479	pv88080_regulator_info[i].desc.csel_reg
5ff00f6a	480	= regmap_config->buck_regmap[i].buck_limit_reg;
989a99bc	481	pv88080_regulator_info[i].desc.csel_mask
5ff00f6a EJ	482	= regmap_config->buck_regmap[i].buck_limit_mask;
	483	pv88080_regulator_info[i].mode_reg
	484	= regmap_config->buck_regmap[i].buck_mode_reg;
	485	pv88080_regulator_info[i].conf2
	486	= regmap_config->buck_regmap[i].buck_vdac_range_reg;
	487	pv88080_regulator_info[i].conf5
	488	= regmap_config->buck_regmap[i].buck_vrange_gain_reg;
	489	pv88080_regulator_info[i].desc.enable_reg
	490	= regmap_config->buck_regmap[i].buck_enable_reg;
	491	pv88080_regulator_info[i].desc.enable_mask
	492	= regmap_config->buck_regmap[i].buck_enable_mask;
	493	pv88080_regulator_info[i].desc.vsel_reg
	494	= regmap_config->buck_regmap[i].buck_vsel_reg;
	495	pv88080_regulator_info[i].desc.vsel_mask
	496	= regmap_config->buck_regmap[i].buck_vsel_mask;
	497
99cf3af5	498	ret = regmap_read(chip->regmap,
5ff00f6a	499	pv88080_regulator_info[i].conf2, &conf2);
99cf3af5 JB	500	if (ret < 0)
99cf3af5 JB	501	return ret;
99cf3af5 JB	502	conf2 = ((conf2 >> PV88080_BUCK_VDAC_RANGE_SHIFT) &
	503	PV88080_BUCK_VDAC_RANGE_MASK);
	504
	505	ret = regmap_read(chip->regmap,
5ff00f6a	506	pv88080_regulator_info[i].conf5, &conf5);
99cf3af5 JB	507	if (ret < 0)
99cf3af5 JB	508	return ret;
99cf3af5 JB	509	conf5 = ((conf5 >> PV88080_BUCK_VRANGE_GAIN_SHIFT) &
	510	PV88080_BUCK_VRANGE_GAIN_MASK);
	511
	512	pv88080_regulator_info[i].desc.min_uV =
	513	pv88080_buck_vol[conf2].min_uV * (conf5+1);
	514	pv88080_regulator_info[i].desc.uV_step =
	515	pv88080_buck_vol[conf2].uV_step * (conf5+1);
	516	pv88080_regulator_info[i].desc.n_voltages =
	517	((pv88080_buck_vol[conf2].max_uV * (conf5+1))
	518	- (pv88080_regulator_info[i].desc.min_uV))
	519	/(pv88080_regulator_info[i].desc.uV_step) + 1;
	520
	521	config.driver_data = (void *)&pv88080_regulator_info[i];
	522	chip->rdev[i] = devm_regulator_register(chip->dev,
	523	&pv88080_regulator_info[i].desc, &config);
	524	if (IS_ERR(chip->rdev[i])) {
	525	dev_err(chip->dev,
	526	"Failed to register PV88080 regulator\n");
	527	return PTR_ERR(chip->rdev[i]);
	528	}
	529	}
	530
5ff00f6a EJ	531	pv88080_regulator_info[PV88080_ID_HVBUCK].desc.enable_reg
	532	= regmap_config->hvbuck_enable_reg;
	533	pv88080_regulator_info[PV88080_ID_HVBUCK].desc.enable_mask
	534	= regmap_config->hvbuck_enable_mask;
	535	pv88080_regulator_info[PV88080_ID_HVBUCK].desc.vsel_reg
	536	= regmap_config->hvbuck_vsel_reg;
	537	pv88080_regulator_info[PV88080_ID_HVBUCK].desc.vsel_mask
	538	= regmap_config->hvbuck_vsel_mask;
	539
	540	/* Registeration for HVBUCK */
	541	if (init_data)
	542	config.init_data = &init_data[PV88080_ID_HVBUCK];
	543
	544	config.driver_data = (void *)&pv88080_regulator_info[PV88080_ID_HVBUCK];
	545	chip->rdev[PV88080_ID_HVBUCK] = devm_regulator_register(chip->dev,
	546	&pv88080_regulator_info[PV88080_ID_HVBUCK].desc, &config);
	547	if (IS_ERR(chip->rdev[PV88080_ID_HVBUCK])) {
	548	dev_err(chip->dev, "Failed to register PV88080 regulator\n");
	549	return PTR_ERR(chip->rdev[PV88080_ID_HVBUCK]);
	550	}
	551
99cf3af5 JB	552	return 0;
	553	}
	554
	555	static const struct i2c_device_id pv88080_i2c_id[] = {
5ff00f6a EJ	556	{ "pv88080", TYPE_PV88080_AA },
	557	{ "pv88080-aa", TYPE_PV88080_AA },
	558	{ "pv88080-ba", TYPE_PV88080_BA },
99cf3af5 JB	559	{},
	560	};
	561	MODULE_DEVICE_TABLE(i2c, pv88080_i2c_id);
	562
99cf3af5 JB	563	static struct i2c_driver pv88080_regulator_driver = {
	564	.driver = {
	565	.name = "pv88080",
	566	.of_match_table = of_match_ptr(pv88080_dt_ids),
	567	},
	568	.probe = pv88080_i2c_probe,
	569	.id_table = pv88080_i2c_id,
	570	};
	571
	572	module_i2c_driver(pv88080_regulator_driver);
	573
	574	MODULE_AUTHOR("James Ban <James.Ban.opensource@diasemi.com>");
	575	MODULE_DESCRIPTION("Regulator device driver for Powerventure PV88080");
	576	MODULE_LICENSE("GPL");