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/*
* Regulator driver for TI TPS65912x PMICs
*
* Copyright (C) 2015 Texas Instruments Incorporated - https://www.ti.com/
* Andrew F. Davis <afd@ti.com>
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*
* This program is distributed "as is" WITHOUT ANY WARRANTY of any
* kind, whether expressed or implied; without even the implied warranty
* of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License version 2 for more details.
*
* Based on the TPS65218 driver and the previous TPS65912 driver by
* Margarita Olaya Cabrera <magi@slimlogic.co.uk>
*/
#include <linux/module.h>
#include <linux/mod_devicetable.h>
#include <linux/platform_device.h>
#include <linux/regulator/driver.h>
#include <linux/mfd/tps65912.h>
enum tps65912_regulators { DCDC1, DCDC2, DCDC3, DCDC4, LDO1, LDO2, LDO3,
LDO4, LDO5, LDO6, LDO7, LDO8, LDO9, LDO10 };
#define TPS65912_REGULATOR(_name, _id, _of_match, _ops, _vr, _er, _lr) \
[_id] = { \
.name = _name, \
.of_match = _of_match, \
.regulators_node = "regulators", \
.id = _id, \
.ops = &_ops, \
.n_voltages = 64, \
.type = REGULATOR_VOLTAGE, \
.owner = THIS_MODULE, \
.vsel_reg = _vr, \
.vsel_mask = 0x3f, \
.enable_reg = _er, \
.enable_mask = BIT(7), \
.volt_table = NULL, \
.linear_ranges = _lr, \
.n_linear_ranges = ARRAY_SIZE(_lr), \
}
static const struct linear_range tps65912_dcdc_ranges[] = {
REGULATOR_LINEAR_RANGE(500000, 0x0, 0x3f, 50000),
};
static const struct linear_range tps65912_ldo_ranges[] = {
REGULATOR_LINEAR_RANGE(800000, 0x0, 0x20, 25000),
REGULATOR_LINEAR_RANGE(1650000, 0x21, 0x3c, 50000),
REGULATOR_LINEAR_RANGE(3100000, 0x3d, 0x3f, 100000),
};
/* Operations permitted on DCDCx */
static struct regulator_ops tps65912_ops_dcdc = {
.is_enabled = regulator_is_enabled_regmap,
.enable = regulator_enable_regmap,
.disable = regulator_disable_regmap,
.get_voltage_sel = regulator_get_voltage_sel_regmap,
.set_voltage_sel = regulator_set_voltage_sel_regmap,
.list_voltage = regulator_list_voltage_linear_range,
};
/* Operations permitted on LDOx */
static struct regulator_ops tps65912_ops_ldo = {
.is_enabled = regulator_is_enabled_regmap,
.enable = regulator_enable_regmap,
.disable = regulator_disable_regmap,
.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[] = {
TPS65912_REGULATOR("DCDC1", DCDC1, "dcdc1", tps65912_ops_dcdc,
TPS65912_DCDC1_OP, TPS65912_DCDC1_CTRL,
tps65912_dcdc_ranges),
TPS65912_REGULATOR("DCDC2", DCDC2, "dcdc2", tps65912_ops_dcdc,
TPS65912_DCDC2_OP, TPS65912_DCDC2_CTRL,
tps65912_dcdc_ranges),
TPS65912_REGULATOR("DCDC3", DCDC3, "dcdc3", tps65912_ops_dcdc,
TPS65912_DCDC3_OP, TPS65912_DCDC3_CTRL,
tps65912_dcdc_ranges),
TPS65912_REGULATOR("DCDC4", DCDC4, "dcdc4", tps65912_ops_dcdc,
TPS65912_DCDC4_OP, TPS65912_DCDC4_CTRL,
tps65912_dcdc_ranges),
TPS65912_REGULATOR("LDO1", LDO1, "ldo1", tps65912_ops_ldo,
TPS65912_LDO1_OP, TPS65912_LDO1_AVS,
tps65912_ldo_ranges),
TPS65912_REGULATOR("LDO2", LDO2, "ldo2", tps65912_ops_ldo,
TPS65912_LDO2_OP, TPS65912_LDO2_AVS,
tps65912_ldo_ranges),
TPS65912_REGULATOR("LDO3", LDO3, "ldo3", tps65912_ops_ldo,
TPS65912_LDO3_OP, TPS65912_LDO3_AVS,
tps65912_ldo_ranges),
TPS65912_REGULATOR("LDO4", LDO4, "ldo4", tps65912_ops_ldo,
TPS65912_LDO4_OP, TPS65912_LDO4_AVS,
tps65912_ldo_ranges),
TPS65912_REGULATOR("LDO5", LDO5, "ldo5", tps65912_ops_ldo,
TPS65912_LDO5, TPS65912_LDO5,
tps65912_ldo_ranges),
TPS65912_REGULATOR("LDO6", LDO6, "ldo6", tps65912_ops_ldo,
TPS65912_LDO6, TPS65912_LDO6,
tps65912_ldo_ranges),
TPS65912_REGULATOR("LDO7", LDO7, "ldo7", tps65912_ops_ldo,
TPS65912_LDO7, TPS65912_LDO7,
tps65912_ldo_ranges),
TPS65912_REGULATOR("LDO8", LDO8, "ldo8", tps65912_ops_ldo,
TPS65912_LDO8, TPS65912_LDO8,
tps65912_ldo_ranges),
TPS65912_REGULATOR("LDO9", LDO9, "ldo9", tps65912_ops_ldo,
TPS65912_LDO9, TPS65912_LDO9,
tps65912_ldo_ranges),
TPS65912_REGULATOR("LDO10", LDO10, "ldo10", tps65912_ops_ldo,
TPS65912_LDO10, TPS65912_LDO10,
tps65912_ldo_ranges),
};
static int tps65912_regulator_probe(struct platform_device *pdev)
{
struct tps65912 *tps = dev_get_drvdata(pdev->dev.parent);
struct regulator_config config = { };
struct regulator_dev *rdev;
int i;
platform_set_drvdata(pdev, tps);
config.dev = &pdev->dev;
config.driver_data = tps;
config.dev->of_node = tps->dev->of_node;
config.regmap = tps->regmap;
for (i = 0; i < ARRAY_SIZE(regulators); i++) {
rdev = devm_regulator_register(&pdev->dev, ®ulators[i],
&config);
if (IS_ERR(rdev)) {
dev_err(tps->dev, "failed to register %s regulator\n",
pdev->name);
return PTR_ERR(rdev);
}
}
return 0;
}
static const struct platform_device_id tps65912_regulator_id_table[] = {
{ "tps65912-regulator", },
{ /* sentinel */ }
};
MODULE_DEVICE_TABLE(platform, tps65912_regulator_id_table);
static struct platform_driver tps65912_regulator_driver = {
.driver = {
.name = "tps65912-regulator",
},
.probe = tps65912_regulator_probe,
.id_table = tps65912_regulator_id_table,
};
module_platform_driver(tps65912_regulator_driver);
MODULE_AUTHOR("Andrew F. Davis <afd@ti.com>");
MODULE_DESCRIPTION("TPS65912 voltage regulator driver");
MODULE_LICENSE("GPL v2");
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