1 // SPDX-License-Identifier: GPL-2.0-or-later
3  * act8865-regulator.c - Voltage regulation for active-semi ACT88xx PMUs
5  * http://www.active-semi.com/products/power-management-units/act88xx/
22 #include <dt-bindings/regulator/active-semi,8865-regulator.h>
124 #define	ACT8865_ENA		0x80	/* ON - [7] */
125 #define	ACT8865_DIS		0x40	/* DIS - [6] */
127 #define	ACT8865_VSEL_MASK	0x3F	/* VSET - [5:0] */
130 #define ACT8600_LDO10_ENA		0x40	/* ON - [6] */
131 #define ACT8600_SUDCDC_VSEL_MASK	0xFF	/* SUDCDC VSET - [7:0] */
150 static const struct regmap_range act8600_reg_ranges[] = {
171 static const struct regmap_range act8600_reg_ro_ranges[] = {
176 static const struct regmap_range act8600_reg_volatile_ranges[] = {
192 static const struct regmap_access_table act8600_write_ranges_table = {
199 static const struct regmap_access_table act8600_read_ranges_table = {
204 static const struct regmap_access_table act8600_volatile_ranges_table = {
209 static const struct regmap_config act8600_regmap_config = {
218 static const struct regmap_config act8865_regmap_config = {
223 static const struct linear_range act8865_voltage_ranges[] = {
229 static const struct linear_range act8600_sudcdc_voltage_ranges[] = {
237 static int act8865_set_suspend_state(struct regulator_dev *rdev, bool enable)  in act8865_set_suspend_state()
239 	struct regmap *regmap = rdev->regmap;  in act8865_set_suspend_state()
240 	int id = rdev->desc->id, reg, val;  in act8865_set_suspend_state()
272 		return -EINVAL;  in act8865_set_suspend_state()
285 static int act8865_set_suspend_enable(struct regulator_dev *rdev)  in act8865_set_suspend_enable()
290 static int act8865_set_suspend_disable(struct regulator_dev *rdev)  in act8865_set_suspend_disable()
295 static unsigned int act8865_of_map_mode(unsigned int mode)  in act8865_of_map_mode()
309 static int act8865_set_mode(struct regulator_dev *rdev, unsigned int mode)  in act8865_set_mode()
311 	struct regmap *regmap = rdev->regmap;  in act8865_set_mode()
338 		return -EINVAL;  in act8865_set_mode()
352 		return -EINVAL;  in act8865_set_mode()
358 static unsigned int act8865_get_mode(struct regulator_dev *rdev)  in act8865_get_mode()
360 	struct regmap *regmap = rdev->regmap;  in act8865_get_mode()
387 		return -EINVAL;  in act8865_get_mode()
402 static const struct regulator_ops act8865_ops = {
416 static const struct regulator_ops act8865_ldo_ops = {
431 static const struct regulator_ops act8865_fixed_ldo_ops = {
465 static const struct regulator_desc act8600_regulators[] = {
517 static const struct regulator_desc act8846_regulators[] = {
532 static const struct regulator_desc act8865_regulators[] = {
542 static const struct regulator_desc act8865_alt_regulators[] = {
553 static const struct of_device_id act8865_dt_ids[] = {
554 	{ .compatible = "active-semi,act8600", .data = (void *)ACT8600 },
555 	{ .compatible = "active-semi,act8846", .data = (void *)ACT8846 },
556 	{ .compatible = "active-semi,act8865", .data = (void *)ACT8865 },
562 static struct act8865_regulator_data *act8865_get_regulator_data(  in act8865_get_regulator_data()
567 	for (i = 0; i < pdata->num_regulators; i++) {  in act8865_get_regulator_data()
568 		if (pdata->regulators[i].id == id)  in act8865_get_regulator_data()
569 			return &pdata->regulators[i];  in act8865_get_regulator_data()
575 static struct i2c_client *act8865_i2c_client;
576 static void act8865_power_off(void)  in act8865_power_off()
581 	regmap_write(act8865->regmap, act8865->off_reg, act8865->off_mask);  in act8865_power_off()
585 static int act8600_charger_get_status(struct regmap *map)  in act8600_charger_get_status()
608 static int act8600_charger_get_property(struct power_supply *psy,  in act8600_charger_get_property()
620 		val->intval = ret;  in act8600_charger_get_property()
623 		return -EINVAL;  in act8600_charger_get_property()
629 static enum power_supply_property act8600_charger_properties[] = {
633 static const struct power_supply_desc act8600_charger_desc = {
634 	.name = "act8600-charger",
641 static int act8600_charger_probe(struct device *dev, struct regmap *regmap)  in act8600_charger_probe()
646 		.of_node = dev->of_node,  in act8600_charger_probe()
654 static int act8865_pmic_probe(struct i2c_client *client)  in act8865_pmic_probe()
659 	struct device *dev = &client->dev;  in act8865_pmic_probe()
667 	if (dev->of_node) {  in act8865_pmic_probe()
672 			return -ENODEV;  in act8865_pmic_probe()
674 		type = (unsigned long) id->data;  in act8865_pmic_probe()
676 		voltage_select = of_property_read_bool(dev->of_node, "active-semi,vsel-high");  in act8865_pmic_probe()
678 		type = i2c_id->driver_data;  in act8865_pmic_probe()
687 		off_reg = -1;  in act8865_pmic_probe()
688 		off_mask = -1;  in act8865_pmic_probe()
711 		return -EINVAL;  in act8865_pmic_probe()
716 		return -ENOMEM;  in act8865_pmic_probe()
718 	act8865->regmap = devm_regmap_init_i2c(client, regmap_config);  in act8865_pmic_probe()
719 	if (IS_ERR(act8865->regmap)) {  in act8865_pmic_probe()
720 		ret = PTR_ERR(act8865->regmap);  in act8865_pmic_probe()
725 	if (of_device_is_system_power_controller(dev->of_node)) {  in act8865_pmic_probe()
728 			act8865->off_reg = off_reg;  in act8865_pmic_probe()
729 			act8865->off_mask = off_mask;  in act8865_pmic_probe()
744 		config.regmap = act8865->regmap;  in act8865_pmic_probe()
749 			rdata = act8865_get_regulator_data(desc->id, pdata);  in act8865_pmic_probe()
751 				config.init_data = rdata->init_data;  in act8865_pmic_probe()
752 				config.of_node = rdata->of_node;  in act8865_pmic_probe()
758 			dev_err(dev, "failed to register %s\n", desc->name);  in act8865_pmic_probe()
764 		ret = act8600_charger_probe(dev, act8865->regmap);  in act8865_pmic_probe()
766 			if (ret != -EPROBE_DEFER)  in act8865_pmic_probe()
775 	return type != ACT8865 ? 0 : regmap_write(act8865->regmap,  in act8865_pmic_probe()
779 static const struct i2c_device_id act8865_ids[] = {
787 static struct i2c_driver act8865_pmic_driver = {
798 MODULE_DESCRIPTION("active-semi act88xx voltage regulator driver");