[linux.git] / drivers / regulator / tps65219-regulator.c

// SPDX-License-Identifier: GPL-2.0
//
// tps65219-regulator.c
//
// Regulator driver for TPS65219 PMIC
//
// Copyright (C) 2022 BayLibre Incorporated - https://www.baylibre.com/
//
// This implementation derived from tps65218 authored by
// "J Keerthy <j-keerthy@ti.com>"
//

#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/device.h>
#include <linux/init.h>
#include <linux/err.h>
#include <linux/of.h>
#include <linux/platform_device.h>
#include <linux/regmap.h>
#include <linux/regulator/of_regulator.h>
#include <linux/regulator/driver.h>
#include <linux/regulator/machine.h>
#include <linux/mfd/tps65219.h>

struct tps65219_regulator_irq_type {
	const char *irq_name;
	const char *regulator_name;
	const char *event_name;
	unsigned long event;
};

static struct tps65219_regulator_irq_type tps65219_regulator_irq_types[] = {
	{ "LDO3_SCG", "LDO3", "short circuit to ground", REGULATOR_EVENT_REGULATION_OUT },
	{ "LDO3_OC", "LDO3", "overcurrent", REGULATOR_EVENT_OVER_CURRENT },
	{ "LDO3_UV", "LDO3", "undervoltage", REGULATOR_EVENT_UNDER_VOLTAGE },
	{ "LDO4_SCG", "LDO4", "short circuit to ground", REGULATOR_EVENT_REGULATION_OUT },
	{ "LDO4_OC", "LDO4", "overcurrent", REGULATOR_EVENT_OVER_CURRENT },
	{ "LDO4_UV", "LDO4", "undervoltage", REGULATOR_EVENT_UNDER_VOLTAGE },
	{ "LDO1_SCG", "LDO1", "short circuit to ground", REGULATOR_EVENT_REGULATION_OUT },
	{ "LDO1_OC", "LDO1", "overcurrent", REGULATOR_EVENT_OVER_CURRENT },
	{ "LDO1_UV", "LDO1", "undervoltage", REGULATOR_EVENT_UNDER_VOLTAGE },
	{ "LDO2_SCG", "LDO2", "short circuit to ground", REGULATOR_EVENT_REGULATION_OUT },
	{ "LDO2_OC", "LDO2", "overcurrent", REGULATOR_EVENT_OVER_CURRENT },
	{ "LDO2_UV", "LDO2", "undervoltage", REGULATOR_EVENT_UNDER_VOLTAGE },
	{ "BUCK3_SCG", "BUCK3", "short circuit to ground", REGULATOR_EVENT_REGULATION_OUT },
	{ "BUCK3_OC", "BUCK3", "overcurrent", REGULATOR_EVENT_OVER_CURRENT },
	{ "BUCK3_NEG_OC", "BUCK3", "negative overcurrent", REGULATOR_EVENT_OVER_CURRENT },
	{ "BUCK3_UV", "BUCK3", "undervoltage", REGULATOR_EVENT_UNDER_VOLTAGE },
	{ "BUCK1_SCG", "BUCK1", "short circuit to ground", REGULATOR_EVENT_REGULATION_OUT },
	{ "BUCK1_OC", "BUCK1", "overcurrent", REGULATOR_EVENT_OVER_CURRENT },
	{ "BUCK1_NEG_OC", "BUCK1", "negative overcurrent", REGULATOR_EVENT_OVER_CURRENT },
	{ "BUCK1_UV", "BUCK1", "undervoltage", REGULATOR_EVENT_UNDER_VOLTAGE },
	{ "BUCK2_SCG", "BUCK2", "short circuit to ground", REGULATOR_EVENT_REGULATION_OUT },
	{ "BUCK2_OC", "BUCK2", "overcurrent", REGULATOR_EVENT_OVER_CURRENT },
	{ "BUCK2_NEG_OC", "BUCK2", "negative overcurrent", REGULATOR_EVENT_OVER_CURRENT },
	{ "BUCK2_UV", "BUCK2", "undervoltage", REGULATOR_EVENT_UNDER_VOLTAGE },
	{ "BUCK1_RV", "BUCK1", "residual voltage", REGULATOR_EVENT_OVER_VOLTAGE_WARN },
	{ "BUCK2_RV", "BUCK2", "residual voltage", REGULATOR_EVENT_OVER_VOLTAGE_WARN },
	{ "BUCK3_RV", "BUCK3", "residual voltage", REGULATOR_EVENT_OVER_VOLTAGE_WARN },
	{ "LDO1_RV", "LDO1", "residual voltage", REGULATOR_EVENT_OVER_VOLTAGE_WARN },
	{ "LDO2_RV", "LDO2", "residual voltage", REGULATOR_EVENT_OVER_VOLTAGE_WARN },
	{ "LDO3_RV", "LDO3", "residual voltage", REGULATOR_EVENT_OVER_VOLTAGE_WARN },
	{ "LDO4_RV", "LDO4", "residual voltage", REGULATOR_EVENT_OVER_VOLTAGE_WARN },
	{ "BUCK1_RV_SD", "BUCK1", "residual voltage on shutdown",
	 REGULATOR_EVENT_OVER_VOLTAGE_WARN },
	{ "BUCK2_RV_SD", "BUCK2", "residual voltage on shutdown",
	 REGULATOR_EVENT_OVER_VOLTAGE_WARN },
	{ "BUCK3_RV_SD", "BUCK3", "residual voltage on shutdown",
	 REGULATOR_EVENT_OVER_VOLTAGE_WARN },
	{ "LDO1_RV_SD", "LDO1", "residual voltage on shutdown", REGULATOR_EVENT_OVER_VOLTAGE_WARN },
	{ "LDO2_RV_SD", "LDO2", "residual voltage on shutdown", REGULATOR_EVENT_OVER_VOLTAGE_WARN },
	{ "LDO3_RV_SD", "LDO3", "residual voltage on shutdown", REGULATOR_EVENT_OVER_VOLTAGE_WARN },
	{ "LDO4_RV_SD", "LDO4", "residual voltage on shutdown", REGULATOR_EVENT_OVER_VOLTAGE_WARN },
	{ "SENSOR_3_WARM", "SENSOR3", "warm temperature", REGULATOR_EVENT_OVER_TEMP_WARN},
	{ "SENSOR_2_WARM", "SENSOR2", "warm temperature", REGULATOR_EVENT_OVER_TEMP_WARN },
	{ "SENSOR_1_WARM", "SENSOR1", "warm temperature", REGULATOR_EVENT_OVER_TEMP_WARN },
	{ "SENSOR_0_WARM", "SENSOR0", "warm temperature", REGULATOR_EVENT_OVER_TEMP_WARN },
	{ "SENSOR_3_HOT", "SENSOR3", "hot temperature", REGULATOR_EVENT_OVER_TEMP},
	{ "SENSOR_2_HOT", "SENSOR2", "hot temperature", REGULATOR_EVENT_OVER_TEMP },
	{ "SENSOR_1_HOT", "SENSOR1", "hot temperature", REGULATOR_EVENT_OVER_TEMP },
	{ "SENSOR_0_HOT", "SENSOR0", "hot temperature", REGULATOR_EVENT_OVER_TEMP },
	{ "TIMEOUT", "", "", REGULATOR_EVENT_ABORT_VOLTAGE_CHANGE },
};

struct tps65219_regulator_irq_data {
	struct device *dev;
	struct tps65219_regulator_irq_type *type;
	struct regulator_dev *rdev;
};

#define TPS65219_REGULATOR(_name, _of, _id, _type, _ops, _n, _vr, _vm, _er, \
			   _em, _cr, _cm, _lr, _nlr, _delay, _fuv, \
			   _ct, _ncl, _bpm) \
	{								\
		.name			= _name,			\
		.of_match		= _of,				\
		.regulators_node	= of_match_ptr("regulators"),	\
		.supply_name		= _of,				\
		.id			= _id,				\
		.ops			= &(_ops),			\
		.n_voltages		= _n,				\
		.type			= _type,			\
		.owner			= THIS_MODULE,			\
		.vsel_reg		= _vr,				\
		.vsel_mask		= _vm,				\
		.csel_reg		= _cr,				\
		.csel_mask		= _cm,				\
		.curr_table		= _ct,				\
		.n_current_limits	= _ncl,				\
		.enable_reg		= _er,				\
		.enable_mask		= _em,				\
		.volt_table		= NULL,				\
		.linear_ranges		= _lr,				\
		.n_linear_ranges	= _nlr,				\
		.ramp_delay		= _delay,			\
		.fixed_uV		= _fuv,				\
		.bypass_reg		= _vr,				\
		.bypass_mask		= _bpm,				\
	}								\

static const struct linear_range bucks_ranges[] = {
	REGULATOR_LINEAR_RANGE(600000, 0x0, 0x1f, 25000),
	REGULATOR_LINEAR_RANGE(1400000, 0x20, 0x33, 100000),
	REGULATOR_LINEAR_RANGE(3400000, 0x34, 0x3f, 0),
};

static const struct linear_range ldos_1_2_ranges[] = {
	REGULATOR_LINEAR_RANGE(600000, 0x0, 0x37, 50000),
	REGULATOR_LINEAR_RANGE(3400000, 0x38, 0x3f, 0),
};

static const struct linear_range ldos_3_4_ranges[] = {
	REGULATOR_LINEAR_RANGE(1200000, 0x0, 0xC, 0),
	REGULATOR_LINEAR_RANGE(1250000, 0xD, 0x35, 50000),
	REGULATOR_LINEAR_RANGE(3300000, 0x36, 0x3F, 0),
};

static int tps65219_set_mode(struct regulator_dev *dev, unsigned int mode)
{
	struct tps65219 *tps = rdev_get_drvdata(dev);

	switch (mode) {
	case REGULATOR_MODE_NORMAL:
		return regmap_set_bits(tps->regmap, TPS65219_REG_STBY_1_CONFIG,
				       dev->desc->enable_mask);

	case REGULATOR_MODE_STANDBY:
		return regmap_clear_bits(tps->regmap,
					 TPS65219_REG_STBY_1_CONFIG,
					 dev->desc->enable_mask);
	default:
		return -EINVAL;
	}
}

static unsigned int tps65219_get_mode(struct regulator_dev *dev)
{
	struct tps65219 *tps = rdev_get_drvdata(dev);
	unsigned int rid = rdev_get_id(dev);
	int ret, value = 0;

	ret = regmap_read(tps->regmap, TPS65219_REG_STBY_1_CONFIG, &value);
	if (ret) {
		dev_dbg(tps->dev, "%s failed for regulator %s: %d ",
			__func__, dev->desc->name, ret);
		return ret;
	}
	value = (value & BIT(rid)) >> rid;
	if (value)
		return REGULATOR_MODE_STANDBY;
	else
		return REGULATOR_MODE_NORMAL;
}

/* Operations permitted on BUCK1/2/3 */
static const struct regulator_ops tps65219_bucks_ops = {
	.is_enabled		= regulator_is_enabled_regmap,
	.enable			= regulator_enable_regmap,
	.disable		= regulator_disable_regmap,
	.set_mode		= tps65219_set_mode,
	.get_mode		= tps65219_get_mode,
	.get_voltage_sel	= regulator_get_voltage_sel_regmap,
	.set_voltage_sel	= regulator_set_voltage_sel_regmap,
	.list_voltage		= regulator_list_voltage_linear_range,
	.map_voltage		= regulator_map_voltage_linear_range,
	.set_voltage_time_sel	= regulator_set_voltage_time_sel,

};

/* Operations permitted on LDO1/2 */
static const struct regulator_ops tps65219_ldos_1_2_ops = {
	.is_enabled		= regulator_is_enabled_regmap,
	.enable			= regulator_enable_regmap,
	.disable		= regulator_disable_regmap,
	.set_mode		= tps65219_set_mode,
	.get_mode		= tps65219_get_mode,
	.get_voltage_sel	= regulator_get_voltage_sel_regmap,
	.set_voltage_sel	= regulator_set_voltage_sel_regmap,
	.list_voltage		= regulator_list_voltage_linear_range,
	.map_voltage		= regulator_map_voltage_linear_range,
	.set_bypass		= regulator_set_bypass_regmap,
	.get_bypass		= regulator_get_bypass_regmap,
};

/* Operations permitted on LDO3/4 */
static const struct regulator_ops tps65219_ldos_3_4_ops = {
	.is_enabled		= regulator_is_enabled_regmap,
	.enable			= regulator_enable_regmap,
	.disable		= regulator_disable_regmap,
	.set_mode		= tps65219_set_mode,
	.get_mode		= tps65219_get_mode,
	.get_voltage_sel	= regulator_get_voltage_sel_regmap,
	.set_voltage_sel	= regulator_set_voltage_sel_regmap,
	.list_voltage		= regulator_list_voltage_linear_range,
	.map_voltage		= regulator_map_voltage_linear_range,
};

static const struct regulator_desc regulators[] = {
	TPS65219_REGULATOR("BUCK1", "buck1", TPS65219_BUCK_1,
			   REGULATOR_VOLTAGE, tps65219_bucks_ops, 64,
			   TPS65219_REG_BUCK1_VOUT,
			   TPS65219_BUCKS_LDOS_VOUT_VSET_MASK,
			   TPS65219_REG_ENABLE_CTRL,
			   TPS65219_ENABLE_BUCK1_EN_MASK, 0, 0, bucks_ranges,
			   3, 4000, 0, NULL, 0, 0),
	TPS65219_REGULATOR("BUCK2", "buck2", TPS65219_BUCK_2,
			   REGULATOR_VOLTAGE, tps65219_bucks_ops, 64,
			   TPS65219_REG_BUCK2_VOUT,
			   TPS65219_BUCKS_LDOS_VOUT_VSET_MASK,
			   TPS65219_REG_ENABLE_CTRL,
			   TPS65219_ENABLE_BUCK2_EN_MASK, 0, 0, bucks_ranges,
			   3, 4000, 0, NULL, 0, 0),
	TPS65219_REGULATOR("BUCK3", "buck3", TPS65219_BUCK_3,
			   REGULATOR_VOLTAGE, tps65219_bucks_ops, 64,
			   TPS65219_REG_BUCK3_VOUT,
			   TPS65219_BUCKS_LDOS_VOUT_VSET_MASK,
			   TPS65219_REG_ENABLE_CTRL,
			   TPS65219_ENABLE_BUCK3_EN_MASK, 0, 0, bucks_ranges,
			   3, 0, 0, NULL, 0, 0),
	TPS65219_REGULATOR("LDO1", "ldo1", TPS65219_LDO_1,
			   REGULATOR_VOLTAGE, tps65219_ldos_1_2_ops, 64,
			   TPS65219_REG_LDO1_VOUT,
			   TPS65219_BUCKS_LDOS_VOUT_VSET_MASK,
			   TPS65219_REG_ENABLE_CTRL,
			   TPS65219_ENABLE_LDO1_EN_MASK, 0, 0, ldos_1_2_ranges,
			   2, 0, 0, NULL, 0, TPS65219_LDOS_BYP_CONFIG_MASK),
	TPS65219_REGULATOR("LDO2", "ldo2", TPS65219_LDO_2,
			   REGULATOR_VOLTAGE, tps65219_ldos_1_2_ops, 64,
			   TPS65219_REG_LDO2_VOUT,
			   TPS65219_BUCKS_LDOS_VOUT_VSET_MASK,
			   TPS65219_REG_ENABLE_CTRL,
			   TPS65219_ENABLE_LDO2_EN_MASK, 0, 0, ldos_1_2_ranges,
			   2, 0, 0, NULL, 0, TPS65219_LDOS_BYP_CONFIG_MASK),
	TPS65219_REGULATOR("LDO3", "ldo3", TPS65219_LDO_3,
			   REGULATOR_VOLTAGE, tps65219_ldos_3_4_ops, 64,
			   TPS65219_REG_LDO3_VOUT,
			   TPS65219_BUCKS_LDOS_VOUT_VSET_MASK,
			   TPS65219_REG_ENABLE_CTRL,
			   TPS65219_ENABLE_LDO3_EN_MASK, 0, 0, ldos_3_4_ranges,
			   3, 0, 0, NULL, 0, 0),
	TPS65219_REGULATOR("LDO4", "ldo4", TPS65219_LDO_4,
			   REGULATOR_VOLTAGE, tps65219_ldos_3_4_ops, 64,
			   TPS65219_REG_LDO4_VOUT,
			   TPS65219_BUCKS_LDOS_VOUT_VSET_MASK,
			   TPS65219_REG_ENABLE_CTRL,
			   TPS65219_ENABLE_LDO4_EN_MASK, 0, 0, ldos_3_4_ranges,
			   3, 0, 0, NULL, 0, 0),
};

static irqreturn_t tps65219_regulator_irq_handler(int irq, void *data)
{
	struct tps65219_regulator_irq_data *irq_data = data;

	if (irq_data->type->event_name[0] == '\0') {
		/* This is the timeout interrupt no specific regulator */
		dev_err(irq_data->dev,
			"System was put in shutdown due to timeout during an active or standby transition.\n");
		return IRQ_HANDLED;
	}

	regulator_notifier_call_chain(irq_data->rdev,
				      irq_data->type->event, NULL);

	dev_err(irq_data->dev, "Error IRQ trap %s for %s\n",
		irq_data->type->event_name, irq_data->type->regulator_name);
	return IRQ_HANDLED;
}

static int tps65219_get_rdev_by_name(const char *regulator_name,
				     struct regulator_dev *rdevtbl[7],
				     struct regulator_dev **dev)
{
	int i;

	for (i = 0; i < ARRAY_SIZE(regulators); i++) {
		if (strcmp(regulator_name, regulators[i].name) == 0) {
			*dev = rdevtbl[i];
			return 0;
		}
	}
	return -EINVAL;
}

static int tps65219_regulator_probe(struct platform_device *pdev)
{
	struct tps65219 *tps = dev_get_drvdata(pdev->dev.parent);
	struct regulator_dev *rdev;
	struct regulator_config config = { };
	int i;
	int error;
	int irq;
	struct tps65219_regulator_irq_data *irq_data;
	struct tps65219_regulator_irq_type *irq_type;
	struct regulator_dev *rdevtbl[7];

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

	for (i = 0; i < ARRAY_SIZE(regulators); i++) {
		dev_dbg(tps->dev, "%s regul i= %d START", __func__, i);
		rdev = devm_regulator_register(&pdev->dev, &regulators[i],
					       &config);
		if (IS_ERR(rdev)) {
			dev_err(tps->dev, "failed to register %s regulator\n",
				regulators[i].name);
			return PTR_ERR(rdev);
		}
		rdevtbl[i] = rdev;
		dev_dbg(tps->dev, "%s regul i= %d COMPLETED", __func__, i);
	}

	irq_data = devm_kmalloc(tps->dev,
				ARRAY_SIZE(tps65219_regulator_irq_types) *
				sizeof(struct tps65219_regulator_irq_data),
				GFP_KERNEL);
	if (!irq_data)
		return -ENOMEM;

	for (i = 0; i < ARRAY_SIZE(tps65219_regulator_irq_types); ++i) {
		irq_type = &tps65219_regulator_irq_types[i];

		irq = platform_get_irq_byname(pdev, irq_type->irq_name);
		if (irq < 0)
			return -EINVAL;

		irq_data[i].dev = tps->dev;
		irq_data[i].type = irq_type;

		tps65219_get_rdev_by_name(irq_type->regulator_name, rdevtbl, &rdev);
		if (IS_ERR(rdev)) {
			dev_err(tps->dev, "Failed to get rdev for %s\n",
				irq_type->regulator_name);
			return -EINVAL;
		}
		irq_data[i].rdev = rdev;

		error = devm_request_threaded_irq(tps->dev, irq, NULL,
						  tps65219_regulator_irq_handler,
						  IRQF_ONESHOT,
						  irq_type->irq_name,
						  &irq_data[i]);
		if (error) {
			dev_err(tps->dev, "failed to request %s IRQ %d: %d\n",
				irq_type->irq_name, irq, error);
			return error;
		}
	}

	return 0;
}

static const struct platform_device_id tps65219_regulator_id_table[] = {
	{ "tps65219-regulator", },
	{ /* sentinel */ }
};
MODULE_DEVICE_TABLE(platform, tps65219_regulator_id_table);

static struct platform_driver tps65219_regulator_driver = {
	.driver = {
		.name = "tps65219-pmic",
		.probe_type = PROBE_PREFER_ASYNCHRONOUS,
	},
	.probe = tps65219_regulator_probe,
	.id_table = tps65219_regulator_id_table,
};

module_platform_driver(tps65219_regulator_driver);

MODULE_AUTHOR("Jerome Neanne <j-neanne@baylibre.com>");
MODULE_DESCRIPTION("TPS65219 voltage regulator driver");
MODULE_ALIAS("platform:tps65219-pmic");
MODULE_LICENSE("GPL");
Commit	Line	Data
c12ac5fc JN	1	// SPDX-License-Identifier: GPL-2.0
	2	//
	3	// tps65219-regulator.c
	4	//
	5	// Regulator driver for TPS65219 PMIC
	6	//
	7	// Copyright (C) 2022 BayLibre Incorporated - https://www.baylibre.com/
	8	//
	9	// This implementation derived from tps65218 authored by
	10	// "J Keerthy <j-keerthy@ti.com>"
	11	//
	12
	13	#include <linux/kernel.h>
	14	#include <linux/module.h>
	15	#include <linux/device.h>
	16	#include <linux/init.h>
	17	#include <linux/err.h>
045a44d4	18	#include <linux/of.h>
c12ac5fc	19	#include <linux/platform_device.h>
c12ac5fc JN	20	#include <linux/regmap.h>
	21	#include <linux/regulator/of_regulator.h>
	22	#include <linux/regulator/driver.h>
	23	#include <linux/regulator/machine.h>
	24	#include <linux/mfd/tps65219.h>
	25
	26	struct tps65219_regulator_irq_type {
	27	const char *irq_name;
	28	const char *regulator_name;
	29	const char *event_name;
	30	unsigned long event;
	31	};
	32
b662748f	33	static struct tps65219_regulator_irq_type tps65219_regulator_irq_types[] = {
c12ac5fc JN	34	{ "LDO3_SCG", "LDO3", "short circuit to ground", REGULATOR_EVENT_REGULATION_OUT },
	35	{ "LDO3_OC", "LDO3", "overcurrent", REGULATOR_EVENT_OVER_CURRENT },
	36	{ "LDO3_UV", "LDO3", "undervoltage", REGULATOR_EVENT_UNDER_VOLTAGE },
	37	{ "LDO4_SCG", "LDO4", "short circuit to ground", REGULATOR_EVENT_REGULATION_OUT },
	38	{ "LDO4_OC", "LDO4", "overcurrent", REGULATOR_EVENT_OVER_CURRENT },
	39	{ "LDO4_UV", "LDO4", "undervoltage", REGULATOR_EVENT_UNDER_VOLTAGE },
	40	{ "LDO1_SCG", "LDO1", "short circuit to ground", REGULATOR_EVENT_REGULATION_OUT },
	41	{ "LDO1_OC", "LDO1", "overcurrent", REGULATOR_EVENT_OVER_CURRENT },
	42	{ "LDO1_UV", "LDO1", "undervoltage", REGULATOR_EVENT_UNDER_VOLTAGE },
	43	{ "LDO2_SCG", "LDO2", "short circuit to ground", REGULATOR_EVENT_REGULATION_OUT },
	44	{ "LDO2_OC", "LDO2", "overcurrent", REGULATOR_EVENT_OVER_CURRENT },
	45	{ "LDO2_UV", "LDO2", "undervoltage", REGULATOR_EVENT_UNDER_VOLTAGE },
	46	{ "BUCK3_SCG", "BUCK3", "short circuit to ground", REGULATOR_EVENT_REGULATION_OUT },
	47	{ "BUCK3_OC", "BUCK3", "overcurrent", REGULATOR_EVENT_OVER_CURRENT },
	48	{ "BUCK3_NEG_OC", "BUCK3", "negative overcurrent", REGULATOR_EVENT_OVER_CURRENT },
	49	{ "BUCK3_UV", "BUCK3", "undervoltage", REGULATOR_EVENT_UNDER_VOLTAGE },
	50	{ "BUCK1_SCG", "BUCK1", "short circuit to ground", REGULATOR_EVENT_REGULATION_OUT },
	51	{ "BUCK1_OC", "BUCK1", "overcurrent", REGULATOR_EVENT_OVER_CURRENT },
	52	{ "BUCK1_NEG_OC", "BUCK1", "negative overcurrent", REGULATOR_EVENT_OVER_CURRENT },
	53	{ "BUCK1_UV", "BUCK1", "undervoltage", REGULATOR_EVENT_UNDER_VOLTAGE },
	54	{ "BUCK2_SCG", "BUCK2", "short circuit to ground", REGULATOR_EVENT_REGULATION_OUT },
	55	{ "BUCK2_OC", "BUCK2", "overcurrent", REGULATOR_EVENT_OVER_CURRENT },
	56	{ "BUCK2_NEG_OC", "BUCK2", "negative overcurrent", REGULATOR_EVENT_OVER_CURRENT },
	57	{ "BUCK2_UV", "BUCK2", "undervoltage", REGULATOR_EVENT_UNDER_VOLTAGE },
	58	{ "BUCK1_RV", "BUCK1", "residual voltage", REGULATOR_EVENT_OVER_VOLTAGE_WARN },
	59	{ "BUCK2_RV", "BUCK2", "residual voltage", REGULATOR_EVENT_OVER_VOLTAGE_WARN },
	60	{ "BUCK3_RV", "BUCK3", "residual voltage", REGULATOR_EVENT_OVER_VOLTAGE_WARN },
	61	{ "LDO1_RV", "LDO1", "residual voltage", REGULATOR_EVENT_OVER_VOLTAGE_WARN },
	62	{ "LDO2_RV", "LDO2", "residual voltage", REGULATOR_EVENT_OVER_VOLTAGE_WARN },
	63	{ "LDO3_RV", "LDO3", "residual voltage", REGULATOR_EVENT_OVER_VOLTAGE_WARN },
	64	{ "LDO4_RV", "LDO4", "residual voltage", REGULATOR_EVENT_OVER_VOLTAGE_WARN },
	65	{ "BUCK1_RV_SD", "BUCK1", "residual voltage on shutdown",
	66	REGULATOR_EVENT_OVER_VOLTAGE_WARN },
	67	{ "BUCK2_RV_SD", "BUCK2", "residual voltage on shutdown",
	68	REGULATOR_EVENT_OVER_VOLTAGE_WARN },
	69	{ "BUCK3_RV_SD", "BUCK3", "residual voltage on shutdown",
	70	REGULATOR_EVENT_OVER_VOLTAGE_WARN },
	71	{ "LDO1_RV_SD", "LDO1", "residual voltage on shutdown", REGULATOR_EVENT_OVER_VOLTAGE_WARN },
	72	{ "LDO2_RV_SD", "LDO2", "residual voltage on shutdown", REGULATOR_EVENT_OVER_VOLTAGE_WARN },
	73	{ "LDO3_RV_SD", "LDO3", "residual voltage on shutdown", REGULATOR_EVENT_OVER_VOLTAGE_WARN },
	74	{ "LDO4_RV_SD", "LDO4", "residual voltage on shutdown", REGULATOR_EVENT_OVER_VOLTAGE_WARN },
	75	{ "SENSOR_3_WARM", "SENSOR3", "warm temperature", REGULATOR_EVENT_OVER_TEMP_WARN},
	76	{ "SENSOR_2_WARM", "SENSOR2", "warm temperature", REGULATOR_EVENT_OVER_TEMP_WARN },
	77	{ "SENSOR_1_WARM", "SENSOR1", "warm temperature", REGULATOR_EVENT_OVER_TEMP_WARN },
	78	{ "SENSOR_0_WARM", "SENSOR0", "warm temperature", REGULATOR_EVENT_OVER_TEMP_WARN },
	79	{ "SENSOR_3_HOT", "SENSOR3", "hot temperature", REGULATOR_EVENT_OVER_TEMP},
	80	{ "SENSOR_2_HOT", "SENSOR2", "hot temperature", REGULATOR_EVENT_OVER_TEMP },
	81	{ "SENSOR_1_HOT", "SENSOR1", "hot temperature", REGULATOR_EVENT_OVER_TEMP },
	82	{ "SENSOR_0_HOT", "SENSOR0", "hot temperature", REGULATOR_EVENT_OVER_TEMP },
	83	{ "TIMEOUT", "", "", REGULATOR_EVENT_ABORT_VOLTAGE_CHANGE },
	84	};
	85
	86	struct tps65219_regulator_irq_data {
	87	struct device *dev;
	88	struct tps65219_regulator_irq_type *type;
	89	struct regulator_dev *rdev;
	90	};
	91
	92	#define TPS65219_REGULATOR(_name, _of, _id, _type, _ops, _n, _vr, _vm, _er, \
	93	_em, _cr, _cm, _lr, _nlr, _delay, _fuv, \
	94	_ct, _ncl, _bpm) \
	95	{ \
	96	.name = _name, \
	97	.of_match = _of, \
98	.regulators_node = of_match_ptr("regulators"), \
99	.supply_name = _of, \
100	.id = _id, \
101	.ops = &(_ops), \
102	.n_voltages = _n, \
103	.type = _type, \
104	.owner = THIS_MODULE, \
105	.vsel_reg = _vr, \
106	.vsel_mask = _vm, \
107	.csel_reg = _cr, \
108	.csel_mask = _cm, \
109	.curr_table = _ct, \
110	.n_current_limits = _ncl, \
111	.enable_reg = _er, \
112	.enable_mask = _em, \
113	.volt_table = NULL, \
114	.linear_ranges = _lr, \
115	.n_linear_ranges = _nlr, \
116	.ramp_delay = _delay, \
117	.fixed_uV = _fuv, \
118	.bypass_reg = _vr, \
119	.bypass_mask = _bpm, \
c12ac5fc JN	120	} \
	121
	122	static const struct linear_range bucks_ranges[] = {
	123	REGULATOR_LINEAR_RANGE(600000, 0x0, 0x1f, 25000),
	124	REGULATOR_LINEAR_RANGE(1400000, 0x20, 0x33, 100000),
	125	REGULATOR_LINEAR_RANGE(3400000, 0x34, 0x3f, 0),
	126	};
	127
	128	static const struct linear_range ldos_1_2_ranges[] = {
	129	REGULATOR_LINEAR_RANGE(600000, 0x0, 0x37, 50000),
	130	REGULATOR_LINEAR_RANGE(3400000, 0x38, 0x3f, 0),
	131	};
	132
	133	static const struct linear_range ldos_3_4_ranges[] = {
	134	REGULATOR_LINEAR_RANGE(1200000, 0x0, 0xC, 0),
	135	REGULATOR_LINEAR_RANGE(1250000, 0xD, 0x35, 50000),
	136	REGULATOR_LINEAR_RANGE(3300000, 0x36, 0x3F, 0),
	137	};
	138
	139	static int tps65219_set_mode(struct regulator_dev *dev, unsigned int mode)
	140	{
	141	struct tps65219 *tps = rdev_get_drvdata(dev);
	142
	143	switch (mode) {
	144	case REGULATOR_MODE_NORMAL:
	145	return regmap_set_bits(tps->regmap, TPS65219_REG_STBY_1_CONFIG,
	146	dev->desc->enable_mask);
	147
	148	case REGULATOR_MODE_STANDBY:
	149	return regmap_clear_bits(tps->regmap,
	150	TPS65219_REG_STBY_1_CONFIG,
	151	dev->desc->enable_mask);
	152	default:
	153	return -EINVAL;
	154	}
	155	}
	156
	157	static unsigned int tps65219_get_mode(struct regulator_dev *dev)
	158	{
	159	struct tps65219 *tps = rdev_get_drvdata(dev);
	160	unsigned int rid = rdev_get_id(dev);
	161	int ret, value = 0;
	162
	163	ret = regmap_read(tps->regmap, TPS65219_REG_STBY_1_CONFIG, &value);
	164	if (ret) {
	165	dev_dbg(tps->dev, "%s failed for regulator %s: %d ",
	166	__func__, dev->desc->name, ret);
	167	return ret;
	168	}
	169	value = (value & BIT(rid)) >> rid;
	170	if (value)
	171	return REGULATOR_MODE_STANDBY;
	172	else
	173	return REGULATOR_MODE_NORMAL;
	174	}
	175
c12ac5fc JN	176	/* Operations permitted on BUCK1/2/3 */
	177	static const struct regulator_ops tps65219_bucks_ops = {
	178	.is_enabled = regulator_is_enabled_regmap,
	179	.enable = regulator_enable_regmap,
	180	.disable = regulator_disable_regmap,
	181	.set_mode = tps65219_set_mode,
	182	.get_mode = tps65219_get_mode,
	183	.get_voltage_sel = regulator_get_voltage_sel_regmap,
	184	.set_voltage_sel = regulator_set_voltage_sel_regmap,
	185	.list_voltage = regulator_list_voltage_linear_range,
	186	.map_voltage = regulator_map_voltage_linear_range,
	187	.set_voltage_time_sel = regulator_set_voltage_time_sel,
	188
	189	};
	190
	191	/* Operations permitted on LDO1/2 */
	192	static const struct regulator_ops tps65219_ldos_1_2_ops = {
	193	.is_enabled = regulator_is_enabled_regmap,
	194	.enable = regulator_enable_regmap,
	195	.disable = regulator_disable_regmap,
	196	.set_mode = tps65219_set_mode,
	197	.get_mode = tps65219_get_mode,
	198	.get_voltage_sel = regulator_get_voltage_sel_regmap,
	199	.set_voltage_sel = regulator_set_voltage_sel_regmap,
	200	.list_voltage = regulator_list_voltage_linear_range,
	201	.map_voltage = regulator_map_voltage_linear_range,
0365df81	202	.set_bypass = regulator_set_bypass_regmap,
c12ac5fc JN	203	.get_bypass = regulator_get_bypass_regmap,
	204	};
	205
	206	/* Operations permitted on LDO3/4 */
	207	static const struct regulator_ops tps65219_ldos_3_4_ops = {
	208	.is_enabled = regulator_is_enabled_regmap,
	209	.enable = regulator_enable_regmap,
	210	.disable = regulator_disable_regmap,
	211	.set_mode = tps65219_set_mode,
	212	.get_mode = tps65219_get_mode,
	213	.get_voltage_sel = regulator_get_voltage_sel_regmap,
	214	.set_voltage_sel = regulator_set_voltage_sel_regmap,
	215	.list_voltage = regulator_list_voltage_linear_range,
	216	.map_voltage = regulator_map_voltage_linear_range,
	217	};
	218
	219	static const struct regulator_desc regulators[] = {
	220	TPS65219_REGULATOR("BUCK1", "buck1", TPS65219_BUCK_1,
	221	REGULATOR_VOLTAGE, tps65219_bucks_ops, 64,
	222	TPS65219_REG_BUCK1_VOUT,
	223	TPS65219_BUCKS_LDOS_VOUT_VSET_MASK,
	224	TPS65219_REG_ENABLE_CTRL,
	225	TPS65219_ENABLE_BUCK1_EN_MASK, 0, 0, bucks_ranges,
	226	3, 4000, 0, NULL, 0, 0),
	227	TPS65219_REGULATOR("BUCK2", "buck2", TPS65219_BUCK_2,
	228	REGULATOR_VOLTAGE, tps65219_bucks_ops, 64,
	229	TPS65219_REG_BUCK2_VOUT,
	230	TPS65219_BUCKS_LDOS_VOUT_VSET_MASK,
	231	TPS65219_REG_ENABLE_CTRL,
	232	TPS65219_ENABLE_BUCK2_EN_MASK, 0, 0, bucks_ranges,
	233	3, 4000, 0, NULL, 0, 0),
	234	TPS65219_REGULATOR("BUCK3", "buck3", TPS65219_BUCK_3,
	235	REGULATOR_VOLTAGE, tps65219_bucks_ops, 64,
	236	TPS65219_REG_BUCK3_VOUT,
	237	TPS65219_BUCKS_LDOS_VOUT_VSET_MASK,
	238	TPS65219_REG_ENABLE_CTRL,
	239	TPS65219_ENABLE_BUCK3_EN_MASK, 0, 0, bucks_ranges,
	240	3, 0, 0, NULL, 0, 0),
	241	TPS65219_REGULATOR("LDO1", "ldo1", TPS65219_LDO_1,
	242	REGULATOR_VOLTAGE, tps65219_ldos_1_2_ops, 64,
	243	TPS65219_REG_LDO1_VOUT,
	244	TPS65219_BUCKS_LDOS_VOUT_VSET_MASK,
	245	TPS65219_REG_ENABLE_CTRL,
	246	TPS65219_ENABLE_LDO1_EN_MASK, 0, 0, ldos_1_2_ranges,
	247	2, 0, 0, NULL, 0, TPS65219_LDOS_BYP_CONFIG_MASK),
	248	TPS65219_REGULATOR("LDO2", "ldo2", TPS65219_LDO_2,
	249	REGULATOR_VOLTAGE, tps65219_ldos_1_2_ops, 64,
	250	TPS65219_REG_LDO2_VOUT,
	251	TPS65219_BUCKS_LDOS_VOUT_VSET_MASK,
	252	TPS65219_REG_ENABLE_CTRL,
	253	TPS65219_ENABLE_LDO2_EN_MASK, 0, 0, ldos_1_2_ranges,
	254	2, 0, 0, NULL, 0, TPS65219_LDOS_BYP_CONFIG_MASK),
	255	TPS65219_REGULATOR("LDO3", "ldo3", TPS65219_LDO_3,
	256	REGULATOR_VOLTAGE, tps65219_ldos_3_4_ops, 64,
	257	TPS65219_REG_LDO3_VOUT,
	258	TPS65219_BUCKS_LDOS_VOUT_VSET_MASK,
	259	TPS65219_REG_ENABLE_CTRL,
	260	TPS65219_ENABLE_LDO3_EN_MASK, 0, 0, ldos_3_4_ranges,
	261	3, 0, 0, NULL, 0, 0),
	262	TPS65219_REGULATOR("LDO4", "ldo4", TPS65219_LDO_4,
	263	REGULATOR_VOLTAGE, tps65219_ldos_3_4_ops, 64,
	264	TPS65219_REG_LDO4_VOUT,
	265	TPS65219_BUCKS_LDOS_VOUT_VSET_MASK,
	266	TPS65219_REG_ENABLE_CTRL,
267	TPS65219_ENABLE_LDO4_EN_MASK, 0, 0, ldos_3_4_ranges,
268	3, 0, 0, NULL, 0, 0),
269	};
270
271	static irqreturn_t tps65219_regulator_irq_handler(int irq, void *data)
272	{
273	struct tps65219_regulator_irq_data *irq_data = data;
274
275	if (irq_data->type->event_name[0] == '\0') {
276	/* This is the timeout interrupt no specific regulator */
277	dev_err(irq_data->dev,
278	"System was put in shutdown due to timeout during an active or standby transition.\n");
279	return IRQ_HANDLED;
280	}
281
282	regulator_notifier_call_chain(irq_data->rdev,
283	irq_data->type->event, NULL);
284
285	dev_err(irq_data->dev, "Error IRQ trap %s for %s\n",
286	irq_data->type->event_name, irq_data->type->regulator_name);
287	return IRQ_HANDLED;
288	}
289
290	static int tps65219_get_rdev_by_name(const char *regulator_name,
291	struct regulator_dev *rdevtbl[7],
f050e56d	292	struct regulator_dev **dev)
c12ac5fc JN	293	{
	294	int i;
	295
	296	for (i = 0; i < ARRAY_SIZE(regulators); i++) {
	297	if (strcmp(regulator_name, regulators[i].name) == 0) {
f050e56d	298	*dev = rdevtbl[i];
c12ac5fc JN	299	return 0;
	300	}
	301	}
	302	return -EINVAL;
	303	}
	304
	305	static int tps65219_regulator_probe(struct platform_device *pdev)
	306	{
	307	struct tps65219 *tps = dev_get_drvdata(pdev->dev.parent);
	308	struct regulator_dev *rdev;
	309	struct regulator_config config = { };
	310	int i;
	311	int error;
	312	int irq;
	313	struct tps65219_regulator_irq_data *irq_data;
	314	struct tps65219_regulator_irq_type *irq_type;
	315	struct regulator_dev *rdevtbl[7];
	316
	317	config.dev = tps->dev;
	318	config.driver_data = tps;
	319	config.regmap = tps->regmap;
	320
	321	for (i = 0; i < ARRAY_SIZE(regulators); i++) {
	322	dev_dbg(tps->dev, "%s regul i= %d START", __func__, i);
	323	rdev = devm_regulator_register(&pdev->dev, &regulators[i],
	324	&config);
	325	if (IS_ERR(rdev)) {
	326	dev_err(tps->dev, "failed to register %s regulator\n",
cfbe9dfd	327	regulators[i].name);
c12ac5fc JN	328	return PTR_ERR(rdev);
	329	}
	330	rdevtbl[i] = rdev;
	331	dev_dbg(tps->dev, "%s regul i= %d COMPLETED", __func__, i);
	332	}
	333
	334	irq_data = devm_kmalloc(tps->dev,
	335	ARRAY_SIZE(tps65219_regulator_irq_types) *
	336	sizeof(struct tps65219_regulator_irq_data),
	337	GFP_KERNEL);
	338	if (!irq_data)
	339	return -ENOMEM;
	340
	341	for (i = 0; i < ARRAY_SIZE(tps65219_regulator_irq_types); ++i) {
	342	irq_type = &tps65219_regulator_irq_types[i];
	343
	344	irq = platform_get_irq_byname(pdev, irq_type->irq_name);
d46f7372	345	if (irq < 0)
c12ac5fc	346	return -EINVAL;
d46f7372	347
c12ac5fc JN	348	irq_data[i].dev = tps->dev;
	349	irq_data[i].type = irq_type;
	350
f050e56d	351	tps65219_get_rdev_by_name(irq_type->regulator_name, rdevtbl, &rdev);
2bbba115	352	if (IS_ERR(rdev)) {
c12ac5fc JN	353	dev_err(tps->dev, "Failed to get rdev for %s\n",
	354	irq_type->regulator_name);
	355	return -EINVAL;
	356	}
	357	irq_data[i].rdev = rdev;
	358
	359	error = devm_request_threaded_irq(tps->dev, irq, NULL,
	360	tps65219_regulator_irq_handler,
	361	IRQF_ONESHOT,
	362	irq_type->irq_name,
	363	&irq_data[i]);
	364	if (error) {
	365	dev_err(tps->dev, "failed to request %s IRQ %d: %d\n",
	366	irq_type->irq_name, irq, error);
	367	return error;
	368	}
	369	}
	370
	371	return 0;
	372	}
	373
	374	static const struct platform_device_id tps65219_regulator_id_table[] = {
	375	{ "tps65219-regulator", },
	376	{ /* sentinel */ }
	377	};
	378	MODULE_DEVICE_TABLE(platform, tps65219_regulator_id_table);
	379
	380	static struct platform_driver tps65219_regulator_driver = {
	381	.driver = {
	382	.name = "tps65219-pmic",
41cff178	383	.probe_type = PROBE_PREFER_ASYNCHRONOUS,
c12ac5fc JN	384	},
	385	.probe = tps65219_regulator_probe,
	386	.id_table = tps65219_regulator_id_table,
	387	};
	388
	389	module_platform_driver(tps65219_regulator_driver);
	390
	391	MODULE_AUTHOR("Jerome Neanne <j-neanne@baylibre.com>");
	392	MODULE_DESCRIPTION("TPS65219 voltage regulator driver");
	393	MODULE_ALIAS("platform:tps65219-pmic");
	394	MODULE_LICENSE("GPL");