[linux-2.6-block.git] / drivers / regulator / pv88080-regulator.c

/*
 * pv88080-regulator.c - Regulator device driver for PV88080
 * Copyright (C) 2016  Powerventure Semiconductor Ltd.
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License
 * as published by the Free Software Foundation; either version 2
 * of the License, or (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 */

#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_notifier_call_chain(chip->rdev[i],
					REGULATOR_EVENT_UNDER_VOLTAGE,
					NULL);
			}
		}

		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_notifier_call_chain(chip->rdev[i],
					REGULATOR_EVENT_OVER_TEMP,
					NULL);
			}
		}

		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
99cf3af5 JB	1	/*
	2	* pv88080-regulator.c - Regulator device driver for PV88080
	3	* Copyright (C) 2016 Powerventure Semiconductor Ltd.
	4	*
	5	* This program is free software; you can redistribute it and/or
	6	* modify it under the terms of the GNU General Public License
	7	* as published by the Free Software Foundation; either version 2
	8	* of the License, or (at your option) any later version.
	9	*
	10	* This program is distributed in the hope that it will be useful,
	11	* but WITHOUT ANY WARRANTY; without even the implied warranty of
	12	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
	13	* GNU General Public License for more details.
	14	*/
	15
	16	#include <linux/err.h>
99cf3af5 JB	17	#include <linux/i2c.h>
99cf3af5 JB	18	#include <linux/module.h>
5ff00f6a	19	#include <linux/of.h>
99cf3af5 JB	20	#include <linux/init.h>
	21	#include <linux/slab.h>
	22	#include <linux/regulator/driver.h>
	23	#include <linux/regulator/machine.h>
	24	#include <linux/regmap.h>
	25	#include <linux/irq.h>
	26	#include <linux/interrupt.h>
	27	#include <linux/regulator/of_regulator.h>
99cf3af5 JB	28	#include "pv88080-regulator.h"
99cf3af5 JB	29
5ff00f6a	30	#define PV88080_MAX_REGULATORS 4
99cf3af5 JB	31
	32	/* PV88080 REGULATOR IDs */
	33	enum {
	34	/* BUCKs */
	35	PV88080_ID_BUCK1,
	36	PV88080_ID_BUCK2,
	37	PV88080_ID_BUCK3,
5ff00f6a EJ	38	PV88080_ID_HVBUCK,
	39	};
	40
	41	enum pv88080_types {
	42	TYPE_PV88080_AA,
	43	TYPE_PV88080_BA,
99cf3af5 JB	44	};
	45
	46	struct pv88080_regulator {
	47	struct regulator_desc desc;
5ff00f6a	48	unsigned int mode_reg;
99cf3af5 JB	49	unsigned int conf2;
	50	unsigned int conf5;
	51	};
	52
	53	struct pv88080 {
	54	struct device *dev;
	55	struct regmap *regmap;
	56	struct regulator_dev *rdev[PV88080_MAX_REGULATORS];
5ff00f6a EJ	57	unsigned long type;
5ff00f6a EJ	58	const struct pv88080_compatible_regmap *regmap_config;
99cf3af5 JB	59	};
	60
	61	struct pv88080_buck_voltage {
	62	int min_uV;
	63	int max_uV;
	64	int uV_step;
	65	};
	66
5ff00f6a EJ	67	struct pv88080_buck_regmap {
	68	/* REGS */
	69	int buck_enable_reg;
	70	int buck_vsel_reg;
	71	int buck_mode_reg;
	72	int buck_limit_reg;
	73	int buck_vdac_range_reg;
	74	int buck_vrange_gain_reg;
	75	/* MASKS */
	76	int buck_enable_mask;
	77	int buck_vsel_mask;
	78	int buck_limit_mask;
	79	};
	80
	81	struct pv88080_compatible_regmap {
	82	/* BUCK1, 2, 3 */
	83	struct pv88080_buck_regmap buck_regmap[PV88080_MAX_REGULATORS-1];
	84	/* HVBUCK */
	85	int hvbuck_enable_reg;
	86	int hvbuck_vsel_reg;
	87	int hvbuck_enable_mask;
	88	int hvbuck_vsel_mask;
	89	};
	90
99cf3af5 JB	91	static const struct regmap_config pv88080_regmap_config = {
	92	.reg_bits = 8,
	93	.val_bits = 8,
	94	};
	95
	96	/* Current limits array (in uA) for BUCK1, BUCK2, BUCK3.
	97	* Entry indexes corresponds to register values.
	98	*/
	99
989a99bc	100	static const unsigned int pv88080_buck1_limits[] = {
99cf3af5 JB	101	3230000, 5130000, 6960000, 8790000
	102	};
	103
989a99bc	104	static const unsigned int pv88080_buck23_limits[] = {
99cf3af5 JB	105	1496000, 2393000, 3291000, 4189000
	106	};
	107
	108	static const struct pv88080_buck_voltage pv88080_buck_vol[2] = {
	109	{
	110	.min_uV = 600000,
	111	.max_uV = 1393750,
	112	.uV_step = 6250,
	113	},
	114	{
	115	.min_uV = 1400000,
	116	.max_uV = 2193750,
	117	.uV_step = 6250,
	118	},
	119	};
	120
5ff00f6a EJ	121	static const struct pv88080_compatible_regmap pv88080_aa_regs = {
	122	/* BUCK1 */
	123	.buck_regmap[0] = {
	124	.buck_enable_reg = PV88080AA_REG_BUCK1_CONF0,
	125	.buck_vsel_reg = PV88080AA_REG_BUCK1_CONF0,
	126	.buck_mode_reg = PV88080AA_REG_BUCK1_CONF1,
	127	.buck_limit_reg = PV88080AA_REG_BUCK1_CONF1,
	128	.buck_vdac_range_reg = PV88080AA_REG_BUCK1_CONF2,
	129	.buck_vrange_gain_reg = PV88080AA_REG_BUCK1_CONF5,
	130	.buck_enable_mask = PV88080_BUCK1_EN,
	131	.buck_vsel_mask = PV88080_VBUCK1_MASK,
	132	.buck_limit_mask = PV88080_BUCK1_ILIM_MASK,
	133	},
	134	/* BUCK2 */
	135	.buck_regmap[1] = {
	136	.buck_enable_reg = PV88080AA_REG_BUCK2_CONF0,
	137	.buck_vsel_reg = PV88080AA_REG_BUCK2_CONF0,
	138	.buck_mode_reg = PV88080AA_REG_BUCK2_CONF1,
	139	.buck_limit_reg = PV88080AA_REG_BUCK2_CONF1,
	140	.buck_vdac_range_reg = PV88080AA_REG_BUCK2_CONF2,
	141	.buck_vrange_gain_reg = PV88080AA_REG_BUCK2_CONF5,
	142	.buck_enable_mask = PV88080_BUCK2_EN,
	143	.buck_vsel_mask = PV88080_VBUCK2_MASK,
	144	.buck_limit_mask = PV88080_BUCK2_ILIM_MASK,
	145	},
	146	/* BUCK3 */
	147	.buck_regmap[2] = {
	148	.buck_enable_reg = PV88080AA_REG_BUCK3_CONF0,
	149	.buck_vsel_reg = PV88080AA_REG_BUCK3_CONF0,
	150	.buck_mode_reg = PV88080AA_REG_BUCK3_CONF1,
	151	.buck_limit_reg = PV88080AA_REG_BUCK3_CONF1,
	152	.buck_vdac_range_reg = PV88080AA_REG_BUCK3_CONF2,
	153	.buck_vrange_gain_reg = PV88080AA_REG_BUCK3_CONF5,
	154	.buck_enable_mask = PV88080_BUCK3_EN,
	155	.buck_vsel_mask = PV88080_VBUCK3_MASK,
	156	.buck_limit_mask = PV88080_BUCK3_ILIM_MASK,
	157	},
	158	/* HVBUCK */
	159	.hvbuck_enable_reg = PV88080AA_REG_HVBUCK_CONF2,
	160	.hvbuck_vsel_reg = PV88080AA_REG_HVBUCK_CONF1,
	161	.hvbuck_enable_mask = PV88080_HVBUCK_EN,
	162	.hvbuck_vsel_mask = PV88080_VHVBUCK_MASK,
	163	};
	164
	165	static const struct pv88080_compatible_regmap pv88080_ba_regs = {
	166	/* BUCK1 */
	167	.buck_regmap[0] = {
	168	.buck_enable_reg = PV88080BA_REG_BUCK1_CONF0,
	169	.buck_vsel_reg = PV88080BA_REG_BUCK1_CONF0,
	170	.buck_mode_reg = PV88080BA_REG_BUCK1_CONF1,
	171	.buck_limit_reg = PV88080BA_REG_BUCK1_CONF1,
	172	.buck_vdac_range_reg = PV88080BA_REG_BUCK1_CONF2,
	173	.buck_vrange_gain_reg = PV88080BA_REG_BUCK1_CONF5,
	174	.buck_enable_mask = PV88080_BUCK1_EN,
	175	.buck_vsel_mask = PV88080_VBUCK1_MASK,
	176	.buck_limit_mask = PV88080_BUCK1_ILIM_MASK,
	177	},
	178	/* BUCK2 */
	179	.buck_regmap[1] = {
	180	.buck_enable_reg = PV88080BA_REG_BUCK2_CONF0,
	181	.buck_vsel_reg = PV88080BA_REG_BUCK2_CONF0,
	182	.buck_mode_reg = PV88080BA_REG_BUCK2_CONF1,
	183	.buck_limit_reg = PV88080BA_REG_BUCK2_CONF1,
	184	.buck_vdac_range_reg = PV88080BA_REG_BUCK2_CONF2,
185	.buck_vrange_gain_reg = PV88080BA_REG_BUCK2_CONF5,
186	.buck_enable_mask = PV88080_BUCK2_EN,
187	.buck_vsel_mask = PV88080_VBUCK2_MASK,
188	.buck_limit_mask = PV88080_BUCK2_ILIM_MASK,
189	},
190	/* BUCK3 */
191	.buck_regmap[2] = {
192	.buck_enable_reg = PV88080BA_REG_BUCK3_CONF0,
193	.buck_vsel_reg = PV88080BA_REG_BUCK3_CONF0,
194	.buck_mode_reg = PV88080BA_REG_BUCK3_CONF1,
195	.buck_limit_reg = PV88080BA_REG_BUCK3_CONF1,
196	.buck_vdac_range_reg = PV88080BA_REG_BUCK3_CONF2,
197	.buck_vrange_gain_reg = PV88080BA_REG_BUCK3_CONF5,
198	.buck_enable_mask = PV88080_BUCK3_EN,
199	.buck_vsel_mask = PV88080_VBUCK3_MASK,
200	.buck_limit_mask = PV88080_BUCK3_ILIM_MASK,
201	},
202	/* HVBUCK */
203	.hvbuck_enable_reg = PV88080BA_REG_HVBUCK_CONF2,
204	.hvbuck_vsel_reg = PV88080BA_REG_HVBUCK_CONF1,
205	.hvbuck_enable_mask = PV88080_HVBUCK_EN,
206	.hvbuck_vsel_mask = PV88080_VHVBUCK_MASK,
207	};
208
209	#ifdef CONFIG_OF
210	static const struct of_device_id pv88080_dt_ids[] = {
211	{ .compatible = "pvs,pv88080", .data = (void *)TYPE_PV88080_AA },
212	{ .compatible = "pvs,pv88080-aa", .data = (void *)TYPE_PV88080_AA },
213	{ .compatible = "pvs,pv88080-ba", .data = (void *)TYPE_PV88080_BA },
214	{},
215	};
216	MODULE_DEVICE_TABLE(of, pv88080_dt_ids);
217	#endif
218
99cf3af5 JB	219	static unsigned int pv88080_buck_get_mode(struct regulator_dev *rdev)
	220	{
	221	struct pv88080_regulator *info = rdev_get_drvdata(rdev);
	222	unsigned int data;
	223	int ret, mode = 0;
	224
5ff00f6a	225	ret = regmap_read(rdev->regmap, info->mode_reg, &data);
99cf3af5 JB	226	if (ret < 0)
	227	return ret;
	228
	229	switch (data & PV88080_BUCK1_MODE_MASK) {
	230	case PV88080_BUCK_MODE_SYNC:
	231	mode = REGULATOR_MODE_FAST;
	232	break;
	233	case PV88080_BUCK_MODE_AUTO:
	234	mode = REGULATOR_MODE_NORMAL;
	235	break;
	236	case PV88080_BUCK_MODE_SLEEP:
	237	mode = REGULATOR_MODE_STANDBY;
	238	break;
	239	default:
	240	return -EINVAL;
	241	}
	242
	243	return mode;
	244	}
	245
	246	static int pv88080_buck_set_mode(struct regulator_dev *rdev,
	247	unsigned int mode)
	248	{
	249	struct pv88080_regulator *info = rdev_get_drvdata(rdev);
	250	int val = 0;
	251
	252	switch (mode) {
	253	case REGULATOR_MODE_FAST:
	254	val = PV88080_BUCK_MODE_SYNC;
	255	break;
	256	case REGULATOR_MODE_NORMAL:
	257	val = PV88080_BUCK_MODE_AUTO;
	258	break;
	259	case REGULATOR_MODE_STANDBY:
	260	val = PV88080_BUCK_MODE_SLEEP;
	261	break;
	262	default:
	263	return -EINVAL;
	264	}
	265
5ff00f6a	266	return regmap_update_bits(rdev->regmap, info->mode_reg,
99cf3af5 JB	267	PV88080_BUCK1_MODE_MASK, val);
	268	}
	269
d4fdf5e1	270	static const struct regulator_ops pv88080_buck_ops = {
99cf3af5 JB	271	.get_mode = pv88080_buck_get_mode,
	272	.set_mode = pv88080_buck_set_mode,
	273	.enable = regulator_enable_regmap,
	274	.disable = regulator_disable_regmap,
	275	.is_enabled = regulator_is_enabled_regmap,
	276	.set_voltage_sel = regulator_set_voltage_sel_regmap,
	277	.get_voltage_sel = regulator_get_voltage_sel_regmap,
	278	.list_voltage = regulator_list_voltage_linear,
989a99bc AL	279	.set_current_limit = regulator_set_current_limit_regmap,
989a99bc AL	280	.get_current_limit = regulator_get_current_limit_regmap,
99cf3af5 JB	281	};
99cf3af5 JB	282
d4fdf5e1	283	static const struct regulator_ops pv88080_hvbuck_ops = {
5ff00f6a EJ	284	.enable = regulator_enable_regmap,
	285	.disable = regulator_disable_regmap,
	286	.is_enabled = regulator_is_enabled_regmap,
	287	.set_voltage_sel = regulator_set_voltage_sel_regmap,
	288	.get_voltage_sel = regulator_get_voltage_sel_regmap,
	289	.list_voltage = regulator_list_voltage_linear,
	290	};
	291
99cf3af5 JB	292	#define PV88080_BUCK(chip, regl_name, min, step, max, limits_array) \
	293	{\
	294	.desc = {\
	295	.id = chip##_ID_##regl_name,\
	296	.name = __stringify(chip##_##regl_name),\
	297	.of_match = of_match_ptr(#regl_name),\
	298	.regulators_node = of_match_ptr("regulators"),\
	299	.type = REGULATOR_VOLTAGE,\
	300	.owner = THIS_MODULE,\
	301	.ops = &pv88080_buck_ops,\
	302	.min_uV = min, \
	303	.uV_step = step, \
	304	.n_voltages = ((max) - (min))/(step) + 1, \
989a99bc AL	305	.curr_table = limits_array, \
989a99bc AL	306	.n_current_limits = ARRAY_SIZE(limits_array), \
99cf3af5	307	},\
5ff00f6a EJ	308	}
	309
	310	#define PV88080_HVBUCK(chip, regl_name, min, step, max) \
	311	{\
	312	.desc = {\
	313	.id = chip##_ID_##regl_name,\
	314	.name = __stringify(chip##_##regl_name),\
	315	.of_match = of_match_ptr(#regl_name),\
	316	.regulators_node = of_match_ptr("regulators"),\
	317	.type = REGULATOR_VOLTAGE,\
	318	.owner = THIS_MODULE,\
	319	.ops = &pv88080_hvbuck_ops,\
	320	.min_uV = min, \
	321	.uV_step = step, \
	322	.n_voltages = ((max) - (min))/(step) + 1, \
	323	},\
99cf3af5 JB	324	}
	325
	326	static struct pv88080_regulator pv88080_regulator_info[] = {
	327	PV88080_BUCK(PV88080, BUCK1, 600000, 6250, 1393750,
	328	pv88080_buck1_limits),
	329	PV88080_BUCK(PV88080, BUCK2, 600000, 6250, 1393750,
	330	pv88080_buck23_limits),
	331	PV88080_BUCK(PV88080, BUCK3, 600000, 6250, 1393750,
	332	pv88080_buck23_limits),
5ff00f6a	333	PV88080_HVBUCK(PV88080, HVBUCK, 0, 5000, 1275000),
99cf3af5 JB	334	};
	335
	336	static irqreturn_t pv88080_irq_handler(int irq, void *data)
	337	{
	338	struct pv88080 *chip = data;
	339	int i, reg_val, err, ret = IRQ_NONE;
	340
	341	err = regmap_read(chip->regmap, PV88080_REG_EVENT_A, &reg_val);
	342	if (err < 0)
	343	goto error_i2c;
	344
	345	if (reg_val & PV88080_E_VDD_FLT) {
	346	for (i = 0; i < PV88080_MAX_REGULATORS; i++) {
	347	if (chip->rdev[i] != NULL) {
	348	regulator_notifier_call_chain(chip->rdev[i],
	349	REGULATOR_EVENT_UNDER_VOLTAGE,
	350	NULL);
	351	}
	352	}
	353
	354	err = regmap_write(chip->regmap, PV88080_REG_EVENT_A,
	355	PV88080_E_VDD_FLT);
	356	if (err < 0)
	357	goto error_i2c;
	358
	359	ret = IRQ_HANDLED;
	360	}
	361
	362	if (reg_val & PV88080_E_OVER_TEMP) {
	363	for (i = 0; i < PV88080_MAX_REGULATORS; i++) {
	364	if (chip->rdev[i] != NULL) {
	365	regulator_notifier_call_chain(chip->rdev[i],
	366	REGULATOR_EVENT_OVER_TEMP,
	367	NULL);
	368	}
	369	}
	370
	371	err = regmap_write(chip->regmap, PV88080_REG_EVENT_A,
	372	PV88080_E_OVER_TEMP);
	373	if (err < 0)
	374	goto error_i2c;
	375
	376	ret = IRQ_HANDLED;
	377	}
	378
	379	return ret;
	380
	381	error_i2c:
	382	dev_err(chip->dev, "I2C error : %d\n", err);
	383	return IRQ_NONE;
	384	}
	385
	386	/*
	387	* I2C driver interface functions
	388	*/
	389	static int pv88080_i2c_probe(struct i2c_client *i2c,
	390	const struct i2c_device_id *id)
	391	{
	392	struct regulator_init_data *init_data = dev_get_platdata(&i2c->dev);
	393	struct pv88080 *chip;
5ff00f6a EJ	394	const struct pv88080_compatible_regmap *regmap_config;
5ff00f6a EJ	395	const struct of_device_id *match;
99cf3af5 JB	396	struct regulator_config config = { };
	397	int i, error, ret;
	398	unsigned int conf2, conf5;
	399
	400	chip = devm_kzalloc(&i2c->dev, sizeof(struct pv88080), GFP_KERNEL);
	401	if (!chip)
	402	return -ENOMEM;
	403
	404	chip->dev = &i2c->dev;
	405	chip->regmap = devm_regmap_init_i2c(i2c, &pv88080_regmap_config);
	406	if (IS_ERR(chip->regmap)) {
	407	error = PTR_ERR(chip->regmap);
	408	dev_err(chip->dev, "Failed to allocate register map: %d\n",
	409	error);
	410	return error;
	411	}
	412
5ff00f6a EJ	413	if (i2c->dev.of_node) {
	414	match = of_match_node(pv88080_dt_ids, i2c->dev.of_node);
	415	if (!match) {
	416	dev_err(chip->dev, "Failed to get of_match_node\n");
	417	return -EINVAL;
	418	}
	419	chip->type = (unsigned long)match->data;
	420	} else {
	421	chip->type = id->driver_data;
	422	}
	423
99cf3af5 JB	424	i2c_set_clientdata(i2c, chip);
	425
	426	if (i2c->irq != 0) {
	427	ret = regmap_write(chip->regmap, PV88080_REG_MASK_A, 0xFF);
	428	if (ret < 0) {
	429	dev_err(chip->dev,
	430	"Failed to mask A reg: %d\n", ret);
	431	return ret;
	432	}
	433	ret = regmap_write(chip->regmap, PV88080_REG_MASK_B, 0xFF);
	434	if (ret < 0) {
	435	dev_err(chip->dev,
	436	"Failed to mask B reg: %d\n", ret);
	437	return ret;
	438	}
	439	ret = regmap_write(chip->regmap, PV88080_REG_MASK_C, 0xFF);
	440	if (ret < 0) {
	441	dev_err(chip->dev,
	442	"Failed to mask C reg: %d\n", ret);
	443	return ret;
	444	}
	445
	446	ret = devm_request_threaded_irq(&i2c->dev, i2c->irq, NULL,
	447	pv88080_irq_handler,
	448	IRQF_TRIGGER_LOW\|IRQF_ONESHOT,
	449	"pv88080", chip);
	450	if (ret != 0) {
	451	dev_err(chip->dev, "Failed to request IRQ: %d\n",
	452	i2c->irq);
	453	return ret;
	454	}
	455
	456	ret = regmap_update_bits(chip->regmap, PV88080_REG_MASK_A,
	457	PV88080_M_VDD_FLT \| PV88080_M_OVER_TEMP, 0);
	458	if (ret < 0) {
	459	dev_err(chip->dev,
	460	"Failed to update mask reg: %d\n", ret);
	461	return ret;
	462	}
99cf3af5 JB	463	} else {
	464	dev_warn(chip->dev, "No IRQ configured\n");
	465	}
	466
5ff00f6a EJ	467	switch (chip->type) {
	468	case TYPE_PV88080_AA:
	469	chip->regmap_config = &pv88080_aa_regs;
	470	break;
	471	case TYPE_PV88080_BA:
	472	chip->regmap_config = &pv88080_ba_regs;
	473	break;
	474	}
	475
	476	regmap_config = chip->regmap_config;
99cf3af5 JB	477	config.dev = chip->dev;
	478	config.regmap = chip->regmap;
	479
5ff00f6a EJ	480	/* Registeration for BUCK1, 2, 3 */
5ff00f6a EJ	481	for (i = 0; i < PV88080_MAX_REGULATORS-1; i++) {
99cf3af5 JB	482	if (init_data)
	483	config.init_data = &init_data[i];
	484
989a99bc	485	pv88080_regulator_info[i].desc.csel_reg
5ff00f6a	486	= regmap_config->buck_regmap[i].buck_limit_reg;
989a99bc	487	pv88080_regulator_info[i].desc.csel_mask
5ff00f6a EJ	488	= regmap_config->buck_regmap[i].buck_limit_mask;
	489	pv88080_regulator_info[i].mode_reg
	490	= regmap_config->buck_regmap[i].buck_mode_reg;
	491	pv88080_regulator_info[i].conf2
	492	= regmap_config->buck_regmap[i].buck_vdac_range_reg;
	493	pv88080_regulator_info[i].conf5
	494	= regmap_config->buck_regmap[i].buck_vrange_gain_reg;
	495	pv88080_regulator_info[i].desc.enable_reg
	496	= regmap_config->buck_regmap[i].buck_enable_reg;
	497	pv88080_regulator_info[i].desc.enable_mask
	498	= regmap_config->buck_regmap[i].buck_enable_mask;
	499	pv88080_regulator_info[i].desc.vsel_reg
	500	= regmap_config->buck_regmap[i].buck_vsel_reg;
	501	pv88080_regulator_info[i].desc.vsel_mask
	502	= regmap_config->buck_regmap[i].buck_vsel_mask;
	503
99cf3af5	504	ret = regmap_read(chip->regmap,
5ff00f6a	505	pv88080_regulator_info[i].conf2, &conf2);
99cf3af5 JB	506	if (ret < 0)
99cf3af5 JB	507	return ret;
99cf3af5 JB	508	conf2 = ((conf2 >> PV88080_BUCK_VDAC_RANGE_SHIFT) &
	509	PV88080_BUCK_VDAC_RANGE_MASK);
	510
	511	ret = regmap_read(chip->regmap,
5ff00f6a	512	pv88080_regulator_info[i].conf5, &conf5);
99cf3af5 JB	513	if (ret < 0)
99cf3af5 JB	514	return ret;
99cf3af5 JB	515	conf5 = ((conf5 >> PV88080_BUCK_VRANGE_GAIN_SHIFT) &
	516	PV88080_BUCK_VRANGE_GAIN_MASK);
	517
	518	pv88080_regulator_info[i].desc.min_uV =
	519	pv88080_buck_vol[conf2].min_uV * (conf5+1);
	520	pv88080_regulator_info[i].desc.uV_step =
	521	pv88080_buck_vol[conf2].uV_step * (conf5+1);
	522	pv88080_regulator_info[i].desc.n_voltages =
	523	((pv88080_buck_vol[conf2].max_uV * (conf5+1))
	524	- (pv88080_regulator_info[i].desc.min_uV))
	525	/(pv88080_regulator_info[i].desc.uV_step) + 1;
	526
	527	config.driver_data = (void *)&pv88080_regulator_info[i];
	528	chip->rdev[i] = devm_regulator_register(chip->dev,
	529	&pv88080_regulator_info[i].desc, &config);
	530	if (IS_ERR(chip->rdev[i])) {
	531	dev_err(chip->dev,
	532	"Failed to register PV88080 regulator\n");
	533	return PTR_ERR(chip->rdev[i]);
	534	}
	535	}
	536
5ff00f6a EJ	537	pv88080_regulator_info[PV88080_ID_HVBUCK].desc.enable_reg
	538	= regmap_config->hvbuck_enable_reg;
	539	pv88080_regulator_info[PV88080_ID_HVBUCK].desc.enable_mask
	540	= regmap_config->hvbuck_enable_mask;
	541	pv88080_regulator_info[PV88080_ID_HVBUCK].desc.vsel_reg
	542	= regmap_config->hvbuck_vsel_reg;
	543	pv88080_regulator_info[PV88080_ID_HVBUCK].desc.vsel_mask
	544	= regmap_config->hvbuck_vsel_mask;
	545
	546	/* Registeration for HVBUCK */
	547	if (init_data)
	548	config.init_data = &init_data[PV88080_ID_HVBUCK];
	549
	550	config.driver_data = (void *)&pv88080_regulator_info[PV88080_ID_HVBUCK];
	551	chip->rdev[PV88080_ID_HVBUCK] = devm_regulator_register(chip->dev,
	552	&pv88080_regulator_info[PV88080_ID_HVBUCK].desc, &config);
	553	if (IS_ERR(chip->rdev[PV88080_ID_HVBUCK])) {
	554	dev_err(chip->dev, "Failed to register PV88080 regulator\n");
	555	return PTR_ERR(chip->rdev[PV88080_ID_HVBUCK]);
	556	}
	557
99cf3af5 JB	558	return 0;
	559	}
	560
	561	static const struct i2c_device_id pv88080_i2c_id[] = {
5ff00f6a EJ	562	{ "pv88080", TYPE_PV88080_AA },
	563	{ "pv88080-aa", TYPE_PV88080_AA },
	564	{ "pv88080-ba", TYPE_PV88080_BA },
99cf3af5 JB	565	{},
	566	};
	567	MODULE_DEVICE_TABLE(i2c, pv88080_i2c_id);
	568
99cf3af5 JB	569	static struct i2c_driver pv88080_regulator_driver = {
	570	.driver = {
	571	.name = "pv88080",
	572	.of_match_table = of_match_ptr(pv88080_dt_ids),
	573	},
	574	.probe = pv88080_i2c_probe,
	575	.id_table = pv88080_i2c_id,
	576	};
	577
	578	module_i2c_driver(pv88080_regulator_driver);
	579
	580	MODULE_AUTHOR("James Ban <James.Ban.opensource@diasemi.com>");
	581	MODULE_DESCRIPTION("Regulator device driver for Powerventure PV88080");
	582	MODULE_LICENSE("GPL");