drivers/regulator/bd70528-regulator.c - linux - Git at Google

 // SPDX-License-Identifier: GPL-2.0
 // Copyright (C) 2018 ROHM Semiconductors
 // bd70528-regulator.c ROHM BD70528MWV regulator driver

 #include <linux/delay.h>
 #include <linux/err.h>
 #include <linux/interrupt.h>
 #include <linux/kernel.h>
 #include <linux/mfd/rohm-bd70528.h>
 #include <linux/module.h>
 #include <linux/of.h>
 #include <linux/platform_device.h>
 #include <linux/regmap.h>
 #include <linux/regulator/driver.h>
 #include <linux/regulator/machine.h>
 #include <linux/regulator/of_regulator.h>
 #include <linux/slab.h>

 #define BUCK_RAMPRATE_250MV 0
 #define BUCK_RAMPRATE_125MV 1
 #define BUCK_RAMP_MAX 250

 static const struct regulator_linear_range bd70528_buck1_volts[] = {
 	REGULATOR_LINEAR_RANGE(1200000, 0x00, 0x1, 600000),
 	REGULATOR_LINEAR_RANGE(2750000, 0x2, 0xf, 50000),
 };
 static const struct regulator_linear_range bd70528_buck2_volts[] = {
 	REGULATOR_LINEAR_RANGE(1200000, 0x00, 0x1, 300000),
 	REGULATOR_LINEAR_RANGE(1550000, 0x2, 0xd, 50000),
 	REGULATOR_LINEAR_RANGE(3000000, 0xe, 0xf, 300000),
 };
 static const struct regulator_linear_range bd70528_buck3_volts[] = {
 	REGULATOR_LINEAR_RANGE(800000, 0x00, 0xd, 50000),
 	REGULATOR_LINEAR_RANGE(1800000, 0xe, 0xf, 0),
 };

 /* All LDOs have same voltage ranges */
 static const struct regulator_linear_range bd70528_ldo_volts[] = {
 	REGULATOR_LINEAR_RANGE(1650000, 0x0, 0x07, 50000),
 	REGULATOR_LINEAR_RANGE(2100000, 0x8, 0x0f, 100000),
 	REGULATOR_LINEAR_RANGE(2850000, 0x10, 0x19, 50000),
 	REGULATOR_LINEAR_RANGE(3300000, 0x19, 0x1f, 0),
 };

 /* Also both LEDs support same voltages */
 static const unsigned int led_volts[] = {
 	20000, 30000
 };

 static int bd70528_set_ramp_delay(struct regulator_dev *rdev, int ramp_delay)
 {
 	if (ramp_delay > 0 && ramp_delay <= BUCK_RAMP_MAX) {
 		unsigned int ramp_value = BUCK_RAMPRATE_250MV;

 		if (ramp_delay <= 125)
 			ramp_value = BUCK_RAMPRATE_125MV;

 		return regmap_update_bits(rdev->regmap, rdev->desc->vsel_reg,
 				  BD70528_MASK_BUCK_RAMP,
 				  ramp_value << BD70528_SIFT_BUCK_RAMP);
 	}
 	dev_err(&rdev->dev, "%s: ramp_delay: %d not supported\n",
 		rdev->desc->name, ramp_delay);
 	return -EINVAL;
 }

 static int bd70528_led_set_voltage_sel(struct regulator_dev *rdev,
 				       unsigned int sel)
 {
 	int ret;

 	ret = regulator_is_enabled_regmap(rdev);
 	if (ret < 0)
 		return ret;

 	if (ret == 0)
 		return regulator_set_voltage_sel_regmap(rdev, sel);

 	dev_err(&rdev->dev,
 		"LED voltage change not allowed when led is enabled\n");

 	return -EBUSY;
 }

 static const struct regulator_ops bd70528_buck_ops = {
 	.enable = regulator_enable_regmap,
 	.disable = regulator_disable_regmap,
 	.is_enabled = regulator_is_enabled_regmap,
 	.list_voltage = regulator_list_voltage_linear_range,
 	.set_voltage_sel = regulator_set_voltage_sel_regmap,
 	.get_voltage_sel = regulator_get_voltage_sel_regmap,
 	.set_voltage_time_sel = regulator_set_voltage_time_sel,
 	.set_ramp_delay = bd70528_set_ramp_delay,
 };

 static const struct regulator_ops bd70528_ldo_ops = {
 	.enable = regulator_enable_regmap,
 	.disable = regulator_disable_regmap,
 	.is_enabled = regulator_is_enabled_regmap,
 	.list_voltage = regulator_list_voltage_linear_range,
 	.set_voltage_sel = regulator_set_voltage_sel_regmap,
 	.get_voltage_sel = regulator_get_voltage_sel_regmap,
 	.set_voltage_time_sel = regulator_set_voltage_time_sel,
 	.set_ramp_delay = bd70528_set_ramp_delay,
 };

 static const struct regulator_ops bd70528_led_ops = {
 	.enable = regulator_enable_regmap,
 	.disable = regulator_disable_regmap,
 	.is_enabled = regulator_is_enabled_regmap,
 	.list_voltage = regulator_list_voltage_table,
 	.set_voltage_sel = bd70528_led_set_voltage_sel,
 	.get_voltage_sel = regulator_get_voltage_sel_regmap,
 };

 static const struct regulator_desc bd70528_desc[] = {
 	{
 		.name = "buck1",
 		.of_match = of_match_ptr("BUCK1"),
 		.regulators_node = of_match_ptr("regulators"),
 		.id = BD70528_BUCK1,
 		.ops = &bd70528_buck_ops,
 		.type = REGULATOR_VOLTAGE,
 		.linear_ranges = bd70528_buck1_volts,
 		.n_linear_ranges = ARRAY_SIZE(bd70528_buck1_volts),
 		.n_voltages = BD70528_BUCK_VOLTS,
 		.enable_reg = BD70528_REG_BUCK1_EN,
 		.enable_mask = BD70528_MASK_RUN_EN,
 		.vsel_reg = BD70528_REG_BUCK1_VOLT,
 		.vsel_mask = BD70528_MASK_BUCK_VOLT,
 		.owner = THIS_MODULE,
 	},
 	{
 		.name = "buck2",
 		.of_match = of_match_ptr("BUCK2"),
 		.regulators_node = of_match_ptr("regulators"),
 		.id = BD70528_BUCK2,
 		.ops = &bd70528_buck_ops,
 		.type = REGULATOR_VOLTAGE,
 		.linear_ranges = bd70528_buck2_volts,
 		.n_linear_ranges = ARRAY_SIZE(bd70528_buck2_volts),
 		.n_voltages = BD70528_BUCK_VOLTS,
 		.enable_reg = BD70528_REG_BUCK2_EN,
 		.enable_mask = BD70528_MASK_RUN_EN,
 		.vsel_reg = BD70528_REG_BUCK2_VOLT,
 		.vsel_mask = BD70528_MASK_BUCK_VOLT,
 		.owner = THIS_MODULE,
 	},
 	{
 		.name = "buck3",
 		.of_match = of_match_ptr("BUCK3"),
 		.regulators_node = of_match_ptr("regulators"),
 		.id = BD70528_BUCK3,
 		.ops = &bd70528_buck_ops,
 		.type = REGULATOR_VOLTAGE,
 		.linear_ranges = bd70528_buck3_volts,
 		.n_linear_ranges = ARRAY_SIZE(bd70528_buck3_volts),
 		.n_voltages = BD70528_BUCK_VOLTS,
 		.enable_reg = BD70528_REG_BUCK3_EN,
 		.enable_mask = BD70528_MASK_RUN_EN,
 		.vsel_reg = BD70528_REG_BUCK3_VOLT,
 		.vsel_mask = BD70528_MASK_BUCK_VOLT,
 		.owner = THIS_MODULE,
 	},
 	{
 		.name = "ldo1",
 		.of_match = of_match_ptr("LDO1"),
 		.regulators_node = of_match_ptr("regulators"),
 		.id = BD70528_LDO1,
 		.ops = &bd70528_ldo_ops,
 		.type = REGULATOR_VOLTAGE,
 		.linear_ranges = bd70528_ldo_volts,
 		.n_linear_ranges = ARRAY_SIZE(bd70528_ldo_volts),
 		.n_voltages = BD70528_LDO_VOLTS,
 		.enable_reg = BD70528_REG_LDO1_EN,
 		.enable_mask = BD70528_MASK_RUN_EN,
 		.vsel_reg = BD70528_REG_LDO1_VOLT,
 		.vsel_mask = BD70528_MASK_LDO_VOLT,
 		.owner = THIS_MODULE,
 	},
 	{
 		.name = "ldo2",
 		.of_match = of_match_ptr("LDO2"),
 		.regulators_node = of_match_ptr("regulators"),
 		.id = BD70528_LDO2,
 		.ops = &bd70528_ldo_ops,
 		.type = REGULATOR_VOLTAGE,
 		.linear_ranges = bd70528_ldo_volts,
 		.n_linear_ranges = ARRAY_SIZE(bd70528_ldo_volts),
 		.n_voltages = BD70528_LDO_VOLTS,
 		.enable_reg = BD70528_REG_LDO2_EN,
 		.enable_mask = BD70528_MASK_RUN_EN,
 		.vsel_reg = BD70528_REG_LDO2_VOLT,
 		.vsel_mask = BD70528_MASK_LDO_VOLT,
 		.owner = THIS_MODULE,
 	},
 	{
 		.name = "ldo3",
 		.of_match = of_match_ptr("LDO3"),
 		.regulators_node = of_match_ptr("regulators"),
 		.id = BD70528_LDO3,
 		.ops = &bd70528_ldo_ops,
 		.type = REGULATOR_VOLTAGE,
 		.linear_ranges = bd70528_ldo_volts,
 		.n_linear_ranges = ARRAY_SIZE(bd70528_ldo_volts),
 		.n_voltages = BD70528_LDO_VOLTS,
 		.enable_reg = BD70528_REG_LDO3_EN,
 		.enable_mask = BD70528_MASK_RUN_EN,
 		.vsel_reg = BD70528_REG_LDO3_VOLT,
 		.vsel_mask = BD70528_MASK_LDO_VOLT,
 		.owner = THIS_MODULE,
 	},
 	{
 		.name = "ldo_led1",
 		.of_match = of_match_ptr("LDO_LED1"),
 		.regulators_node = of_match_ptr("regulators"),
 		.id = BD70528_LED1,
 		.ops = &bd70528_led_ops,
 		.type = REGULATOR_VOLTAGE,
 		.volt_table = &led_volts[0],
 		.n_voltages = ARRAY_SIZE(led_volts),
 		.enable_reg = BD70528_REG_LED_EN,
 		.enable_mask = BD70528_MASK_LED1_EN,
 		.vsel_reg = BD70528_REG_LED_VOLT,
 		.vsel_mask = BD70528_MASK_LED1_VOLT,
 		.owner = THIS_MODULE,
 	},
 	{
 		.name = "ldo_led2",
 		.of_match = of_match_ptr("LDO_LED2"),
 		.regulators_node = of_match_ptr("regulators"),
 		.id = BD70528_LED2,
 		.ops = &bd70528_led_ops,
 		.type = REGULATOR_VOLTAGE,
 		.volt_table = &led_volts[0],
 		.n_voltages = ARRAY_SIZE(led_volts),
 		.enable_reg = BD70528_REG_LED_EN,
 		.enable_mask = BD70528_MASK_LED2_EN,
 		.vsel_reg = BD70528_REG_LED_VOLT,
 		.vsel_mask = BD70528_MASK_LED2_VOLT,
 		.owner = THIS_MODULE,
 	},

 };

 static int bd70528_probe(struct platform_device *pdev)
 {
 	struct rohm_regmap_dev *bd70528;
 	int i;
 	struct regulator_config config = {
 		.dev = pdev->dev.parent,
 	};

 	bd70528 = dev_get_drvdata(pdev->dev.parent);
 	if (!bd70528) {
 		dev_err(&pdev->dev, "No MFD driver data\n");
 		return -EINVAL;
 	}

 	config.regmap = bd70528->regmap;

 	for (i = 0; i < ARRAY_SIZE(bd70528_desc); i++) {
 		struct regulator_dev *rdev;

 		rdev = devm_regulator_register(&pdev->dev, &bd70528_desc[i],
 					       &config);
 		if (IS_ERR(rdev)) {
 			dev_err(&pdev->dev,
 				"failed to register %s regulator\n",
 				bd70528_desc[i].name);
 			return PTR_ERR(rdev);
 		}
 	}
 	return 0;
 }

 static struct platform_driver bd70528_regulator = {
 	.driver = {
 		.name = "bd70528-pmic"
 	},
 	.probe = bd70528_probe,
 };

 module_platform_driver(bd70528_regulator);

 MODULE_AUTHOR("Matti Vaittinen <matti.vaittinen@fi.rohmeurope.com>");
 MODULE_DESCRIPTION("BD70528 voltage regulator driver");
 MODULE_LICENSE("GPL");
	// SPDX-License-Identifier: GPL-2.0
	// Copyright (C) 2018 ROHM Semiconductors
	// bd70528-regulator.c ROHM BD70528MWV regulator driver

	#include <linux/delay.h>
	#include <linux/err.h>
	#include <linux/interrupt.h>
	#include <linux/kernel.h>
	#include <linux/mfd/rohm-bd70528.h>
	#include <linux/module.h>
	#include <linux/of.h>
	#include <linux/platform_device.h>
	#include <linux/regmap.h>
	#include <linux/regulator/driver.h>
	#include <linux/regulator/machine.h>
	#include <linux/regulator/of_regulator.h>
	#include <linux/slab.h>

	#define BUCK_RAMPRATE_250MV 0
	#define BUCK_RAMPRATE_125MV 1
	#define BUCK_RAMP_MAX 250

	static const struct regulator_linear_range bd70528_buck1_volts[] = {
	REGULATOR_LINEAR_RANGE(1200000, 0x00, 0x1, 600000),
	REGULATOR_LINEAR_RANGE(2750000, 0x2, 0xf, 50000),
	};
	static const struct regulator_linear_range bd70528_buck2_volts[] = {
	REGULATOR_LINEAR_RANGE(1200000, 0x00, 0x1, 300000),
	REGULATOR_LINEAR_RANGE(1550000, 0x2, 0xd, 50000),
	REGULATOR_LINEAR_RANGE(3000000, 0xe, 0xf, 300000),
	};
	static const struct regulator_linear_range bd70528_buck3_volts[] = {
	REGULATOR_LINEAR_RANGE(800000, 0x00, 0xd, 50000),
	REGULATOR_LINEAR_RANGE(1800000, 0xe, 0xf, 0),
	};

	/* All LDOs have same voltage ranges */
	static const struct regulator_linear_range bd70528_ldo_volts[] = {
	REGULATOR_LINEAR_RANGE(1650000, 0x0, 0x07, 50000),
	REGULATOR_LINEAR_RANGE(2100000, 0x8, 0x0f, 100000),
	REGULATOR_LINEAR_RANGE(2850000, 0x10, 0x19, 50000),
	REGULATOR_LINEAR_RANGE(3300000, 0x19, 0x1f, 0),
	};

	/* Also both LEDs support same voltages */
	static const unsigned int led_volts[] = {
	20000, 30000
	};

	static int bd70528_set_ramp_delay(struct regulator_dev *rdev, int ramp_delay)
	{
	if (ramp_delay > 0 && ramp_delay <= BUCK_RAMP_MAX) {
	unsigned int ramp_value = BUCK_RAMPRATE_250MV;

	if (ramp_delay <= 125)
	ramp_value = BUCK_RAMPRATE_125MV;

	return regmap_update_bits(rdev->regmap, rdev->desc->vsel_reg,
	BD70528_MASK_BUCK_RAMP,
	ramp_value << BD70528_SIFT_BUCK_RAMP);
	}
	dev_err(&rdev->dev, "%s: ramp_delay: %d not supported\n",
	rdev->desc->name, ramp_delay);
	return -EINVAL;
	}

	static int bd70528_led_set_voltage_sel(struct regulator_dev *rdev,
	unsigned int sel)
	{
	int ret;

	ret = regulator_is_enabled_regmap(rdev);
	if (ret < 0)
	return ret;

	if (ret == 0)
	return regulator_set_voltage_sel_regmap(rdev, sel);

	dev_err(&rdev->dev,
	"LED voltage change not allowed when led is enabled\n");

	return -EBUSY;
	}

	static const struct regulator_ops bd70528_buck_ops = {
	.enable = regulator_enable_regmap,
	.disable = regulator_disable_regmap,
	.is_enabled = regulator_is_enabled_regmap,
	.list_voltage = regulator_list_voltage_linear_range,
	.set_voltage_sel = regulator_set_voltage_sel_regmap,
	.get_voltage_sel = regulator_get_voltage_sel_regmap,
	.set_voltage_time_sel = regulator_set_voltage_time_sel,
	.set_ramp_delay = bd70528_set_ramp_delay,
	};

	static const struct regulator_ops bd70528_ldo_ops = {
	.enable = regulator_enable_regmap,
	.disable = regulator_disable_regmap,
	.is_enabled = regulator_is_enabled_regmap,
	.list_voltage = regulator_list_voltage_linear_range,
	.set_voltage_sel = regulator_set_voltage_sel_regmap,
	.get_voltage_sel = regulator_get_voltage_sel_regmap,
	.set_voltage_time_sel = regulator_set_voltage_time_sel,
	.set_ramp_delay = bd70528_set_ramp_delay,
	};

	static const struct regulator_ops bd70528_led_ops = {
	.enable = regulator_enable_regmap,
	.disable = regulator_disable_regmap,
	.is_enabled = regulator_is_enabled_regmap,
	.list_voltage = regulator_list_voltage_table,
	.set_voltage_sel = bd70528_led_set_voltage_sel,
	.get_voltage_sel = regulator_get_voltage_sel_regmap,
	};

	static const struct regulator_desc bd70528_desc[] = {
	{
	.name = "buck1",
	.of_match = of_match_ptr("BUCK1"),
	.regulators_node = of_match_ptr("regulators"),
	.id = BD70528_BUCK1,
	.ops = &bd70528_buck_ops,
	.type = REGULATOR_VOLTAGE,
	.linear_ranges = bd70528_buck1_volts,
	.n_linear_ranges = ARRAY_SIZE(bd70528_buck1_volts),
	.n_voltages = BD70528_BUCK_VOLTS,
	.enable_reg = BD70528_REG_BUCK1_EN,
	.enable_mask = BD70528_MASK_RUN_EN,
	.vsel_reg = BD70528_REG_BUCK1_VOLT,
	.vsel_mask = BD70528_MASK_BUCK_VOLT,
	.owner = THIS_MODULE,
	},
	{
	.name = "buck2",
	.of_match = of_match_ptr("BUCK2"),
	.regulators_node = of_match_ptr("regulators"),
	.id = BD70528_BUCK2,
	.ops = &bd70528_buck_ops,
	.type = REGULATOR_VOLTAGE,
	.linear_ranges = bd70528_buck2_volts,
	.n_linear_ranges = ARRAY_SIZE(bd70528_buck2_volts),
	.n_voltages = BD70528_BUCK_VOLTS,
	.enable_reg = BD70528_REG_BUCK2_EN,
	.enable_mask = BD70528_MASK_RUN_EN,
	.vsel_reg = BD70528_REG_BUCK2_VOLT,
	.vsel_mask = BD70528_MASK_BUCK_VOLT,
	.owner = THIS_MODULE,
	},
	{
	.name = "buck3",
	.of_match = of_match_ptr("BUCK3"),
	.regulators_node = of_match_ptr("regulators"),
	.id = BD70528_BUCK3,
	.ops = &bd70528_buck_ops,
	.type = REGULATOR_VOLTAGE,
	.linear_ranges = bd70528_buck3_volts,
	.n_linear_ranges = ARRAY_SIZE(bd70528_buck3_volts),
	.n_voltages = BD70528_BUCK_VOLTS,
	.enable_reg = BD70528_REG_BUCK3_EN,
	.enable_mask = BD70528_MASK_RUN_EN,
	.vsel_reg = BD70528_REG_BUCK3_VOLT,
	.vsel_mask = BD70528_MASK_BUCK_VOLT,
	.owner = THIS_MODULE,
	},
	{
	.name = "ldo1",
	.of_match = of_match_ptr("LDO1"),
	.regulators_node = of_match_ptr("regulators"),
	.id = BD70528_LDO1,
	.ops = &bd70528_ldo_ops,
	.type = REGULATOR_VOLTAGE,
	.linear_ranges = bd70528_ldo_volts,
	.n_linear_ranges = ARRAY_SIZE(bd70528_ldo_volts),
	.n_voltages = BD70528_LDO_VOLTS,
	.enable_reg = BD70528_REG_LDO1_EN,
	.enable_mask = BD70528_MASK_RUN_EN,
	.vsel_reg = BD70528_REG_LDO1_VOLT,
	.vsel_mask = BD70528_MASK_LDO_VOLT,
	.owner = THIS_MODULE,
	},
	{
	.name = "ldo2",
	.of_match = of_match_ptr("LDO2"),
	.regulators_node = of_match_ptr("regulators"),
	.id = BD70528_LDO2,
	.ops = &bd70528_ldo_ops,
	.type = REGULATOR_VOLTAGE,
	.linear_ranges = bd70528_ldo_volts,
	.n_linear_ranges = ARRAY_SIZE(bd70528_ldo_volts),
	.n_voltages = BD70528_LDO_VOLTS,
	.enable_reg = BD70528_REG_LDO2_EN,
	.enable_mask = BD70528_MASK_RUN_EN,
	.vsel_reg = BD70528_REG_LDO2_VOLT,
	.vsel_mask = BD70528_MASK_LDO_VOLT,
	.owner = THIS_MODULE,
	},
	{
	.name = "ldo3",
	.of_match = of_match_ptr("LDO3"),
	.regulators_node = of_match_ptr("regulators"),
	.id = BD70528_LDO3,
	.ops = &bd70528_ldo_ops,
	.type = REGULATOR_VOLTAGE,
	.linear_ranges = bd70528_ldo_volts,
	.n_linear_ranges = ARRAY_SIZE(bd70528_ldo_volts),
	.n_voltages = BD70528_LDO_VOLTS,
	.enable_reg = BD70528_REG_LDO3_EN,
	.enable_mask = BD70528_MASK_RUN_EN,
	.vsel_reg = BD70528_REG_LDO3_VOLT,
	.vsel_mask = BD70528_MASK_LDO_VOLT,
	.owner = THIS_MODULE,
	},
	{
	.name = "ldo_led1",
	.of_match = of_match_ptr("LDO_LED1"),
	.regulators_node = of_match_ptr("regulators"),
	.id = BD70528_LED1,
	.ops = &bd70528_led_ops,
	.type = REGULATOR_VOLTAGE,
	.volt_table = &led_volts[0],
	.n_voltages = ARRAY_SIZE(led_volts),
	.enable_reg = BD70528_REG_LED_EN,
	.enable_mask = BD70528_MASK_LED1_EN,
	.vsel_reg = BD70528_REG_LED_VOLT,
	.vsel_mask = BD70528_MASK_LED1_VOLT,
	.owner = THIS_MODULE,
	},
	{
	.name = "ldo_led2",
	.of_match = of_match_ptr("LDO_LED2"),
	.regulators_node = of_match_ptr("regulators"),
	.id = BD70528_LED2,
	.ops = &bd70528_led_ops,
	.type = REGULATOR_VOLTAGE,
	.volt_table = &led_volts[0],
	.n_voltages = ARRAY_SIZE(led_volts),
	.enable_reg = BD70528_REG_LED_EN,
	.enable_mask = BD70528_MASK_LED2_EN,
	.vsel_reg = BD70528_REG_LED_VOLT,
	.vsel_mask = BD70528_MASK_LED2_VOLT,
	.owner = THIS_MODULE,
	},

	};

	static int bd70528_probe(struct platform_device *pdev)
	{
	struct rohm_regmap_dev *bd70528;
	int i;
	struct regulator_config config = {
	.dev = pdev->dev.parent,
	};

	bd70528 = dev_get_drvdata(pdev->dev.parent);
	if (!bd70528) {
	dev_err(&pdev->dev, "No MFD driver data\n");
	return -EINVAL;
	}

	config.regmap = bd70528->regmap;

	for (i = 0; i < ARRAY_SIZE(bd70528_desc); i++) {
	struct regulator_dev *rdev;

	rdev = devm_regulator_register(&pdev->dev, &bd70528_desc[i],
	&config);
	if (IS_ERR(rdev)) {
	dev_err(&pdev->dev,
	"failed to register %s regulator\n",
	bd70528_desc[i].name);
	return PTR_ERR(rdev);
	}
	}
	return 0;
	}

	static struct platform_driver bd70528_regulator = {
	.driver = {
	.name = "bd70528-pmic"
	},
	.probe = bd70528_probe,
	};

	module_platform_driver(bd70528_regulator);

	MODULE_AUTHOR("Matti Vaittinen <matti.vaittinen@fi.rohmeurope.com>");
	MODULE_DESCRIPTION("BD70528 voltage regulator driver");
	MODULE_LICENSE("GPL");