mirror of
https://github.com/AuxXxilium/linux_dsm_epyc7002.git
synced 2024-12-05 07:46:53 +07:00
5ab9be4274
Use regulator_set_voltage_time_sel() instead of open-coded. Signed-off-by: Axel Lin <axel.lin@ingics.com> Signed-off-by: Mark Brown <broonie@linaro.org>
269 lines
8.6 KiB
C
269 lines
8.6 KiB
C
/*
|
|
* tps65218-regulator.c
|
|
*
|
|
* Regulator driver for TPS65218 PMIC
|
|
*
|
|
* Copyright (C) 2014 Texas Instruments Incorporated - http://www.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.
|
|
*/
|
|
|
|
#include <linux/kernel.h>
|
|
#include <linux/module.h>
|
|
#include <linux/device.h>
|
|
#include <linux/init.h>
|
|
#include <linux/err.h>
|
|
#include <linux/platform_device.h>
|
|
#include <linux/of_device.h>
|
|
#include <linux/regulator/of_regulator.h>
|
|
#include <linux/regulator/driver.h>
|
|
#include <linux/regulator/machine.h>
|
|
#include <linux/mfd/tps65218.h>
|
|
|
|
enum tps65218_regulators { DCDC1, DCDC2, DCDC3, DCDC4, DCDC5, DCDC6, LDO1 };
|
|
|
|
#define TPS65218_REGULATOR(_name, _id, _ops, _n, _vr, _vm, _er, _em, _t, \
|
|
_lr, _nlr, _delay) \
|
|
{ \
|
|
.name = _name, \
|
|
.id = _id, \
|
|
.ops = &_ops, \
|
|
.n_voltages = _n, \
|
|
.type = REGULATOR_VOLTAGE, \
|
|
.owner = THIS_MODULE, \
|
|
.vsel_reg = _vr, \
|
|
.vsel_mask = _vm, \
|
|
.enable_reg = _er, \
|
|
.enable_mask = _em, \
|
|
.volt_table = _t, \
|
|
.linear_ranges = _lr, \
|
|
.n_linear_ranges = _nlr, \
|
|
.ramp_delay = _delay, \
|
|
} \
|
|
|
|
#define TPS65218_INFO(_id, _nm, _min, _max) \
|
|
{ \
|
|
.id = _id, \
|
|
.name = _nm, \
|
|
.min_uV = _min, \
|
|
.max_uV = _max, \
|
|
}
|
|
|
|
static const struct regulator_linear_range dcdc1_dcdc2_ranges[] = {
|
|
REGULATOR_LINEAR_RANGE(850000, 0x0, 0x32, 10000),
|
|
REGULATOR_LINEAR_RANGE(1375000, 0x33, 0x3f, 25000),
|
|
};
|
|
|
|
static const struct regulator_linear_range ldo1_dcdc3_ranges[] = {
|
|
REGULATOR_LINEAR_RANGE(900000, 0x0, 0x1a, 25000),
|
|
REGULATOR_LINEAR_RANGE(1600000, 0x1b, 0x3f, 50000),
|
|
};
|
|
|
|
static const struct regulator_linear_range dcdc4_ranges[] = {
|
|
REGULATOR_LINEAR_RANGE(1175000, 0x0, 0xf, 25000),
|
|
REGULATOR_LINEAR_RANGE(1550000, 0x10, 0x34, 50000),
|
|
};
|
|
|
|
static struct tps_info tps65218_pmic_regs[] = {
|
|
TPS65218_INFO(0, "DCDC1", 850000, 167500),
|
|
TPS65218_INFO(1, "DCDC2", 850000, 1675000),
|
|
TPS65218_INFO(2, "DCDC3", 900000, 3400000),
|
|
TPS65218_INFO(3, "DCDC4", 1175000, 3400000),
|
|
TPS65218_INFO(4, "DCDC5", 1000000, 1000000),
|
|
TPS65218_INFO(5, "DCDC6", 1800000, 1800000),
|
|
TPS65218_INFO(6, "LDO1", 900000, 3400000),
|
|
};
|
|
|
|
#define TPS65218_OF_MATCH(comp, label) \
|
|
{ \
|
|
.compatible = comp, \
|
|
.data = &label, \
|
|
}
|
|
|
|
static const struct of_device_id tps65218_of_match[] = {
|
|
TPS65218_OF_MATCH("ti,tps65218-dcdc1", tps65218_pmic_regs[DCDC1]),
|
|
TPS65218_OF_MATCH("ti,tps65218-dcdc2", tps65218_pmic_regs[DCDC2]),
|
|
TPS65218_OF_MATCH("ti,tps65218-dcdc3", tps65218_pmic_regs[DCDC3]),
|
|
TPS65218_OF_MATCH("ti,tps65218-dcdc4", tps65218_pmic_regs[DCDC4]),
|
|
TPS65218_OF_MATCH("ti,tps65218-dcdc5", tps65218_pmic_regs[DCDC5]),
|
|
TPS65218_OF_MATCH("ti,tps65218-dcdc6", tps65218_pmic_regs[DCDC6]),
|
|
TPS65218_OF_MATCH("ti,tps65218-ldo1", tps65218_pmic_regs[LDO1]),
|
|
{ }
|
|
};
|
|
MODULE_DEVICE_TABLE(of, tps65218_of_match);
|
|
|
|
static int tps65218_pmic_set_voltage_sel(struct regulator_dev *dev,
|
|
unsigned selector)
|
|
{
|
|
int ret;
|
|
struct tps65218 *tps = rdev_get_drvdata(dev);
|
|
unsigned int rid = rdev_get_id(dev);
|
|
|
|
/* Set the voltage based on vsel value and write protect level is 2 */
|
|
ret = tps65218_set_bits(tps, dev->desc->vsel_reg, dev->desc->vsel_mask,
|
|
selector, TPS65218_PROTECT_L1);
|
|
|
|
/* Set GO bit for DCDC1/2 to initiate voltage transistion */
|
|
switch (rid) {
|
|
case TPS65218_DCDC_1:
|
|
case TPS65218_DCDC_2:
|
|
ret = tps65218_set_bits(tps, TPS65218_REG_CONTRL_SLEW_RATE,
|
|
TPS65218_SLEW_RATE_GO,
|
|
TPS65218_SLEW_RATE_GO,
|
|
TPS65218_PROTECT_L1);
|
|
break;
|
|
}
|
|
|
|
return ret;
|
|
}
|
|
|
|
static int tps65218_pmic_enable(struct regulator_dev *dev)
|
|
{
|
|
struct tps65218 *tps = rdev_get_drvdata(dev);
|
|
unsigned int rid = rdev_get_id(dev);
|
|
|
|
if (rid < TPS65218_DCDC_1 || rid > TPS65218_LDO_1)
|
|
return -EINVAL;
|
|
|
|
/* Enable the regulator and password protection is level 1 */
|
|
return tps65218_set_bits(tps, dev->desc->enable_reg,
|
|
dev->desc->enable_mask, dev->desc->enable_mask,
|
|
TPS65218_PROTECT_L1);
|
|
}
|
|
|
|
static int tps65218_pmic_disable(struct regulator_dev *dev)
|
|
{
|
|
struct tps65218 *tps = rdev_get_drvdata(dev);
|
|
unsigned int rid = rdev_get_id(dev);
|
|
|
|
if (rid < TPS65218_DCDC_1 || rid > TPS65218_LDO_1)
|
|
return -EINVAL;
|
|
|
|
/* Disable the regulator and password protection is level 1 */
|
|
return tps65218_clear_bits(tps, dev->desc->enable_reg,
|
|
dev->desc->enable_mask, TPS65218_PROTECT_L1);
|
|
}
|
|
|
|
/* Operations permitted on DCDC1, DCDC2 */
|
|
static struct regulator_ops tps65218_dcdc12_ops = {
|
|
.is_enabled = regulator_is_enabled_regmap,
|
|
.enable = tps65218_pmic_enable,
|
|
.disable = tps65218_pmic_disable,
|
|
.get_voltage_sel = regulator_get_voltage_sel_regmap,
|
|
.set_voltage_sel = tps65218_pmic_set_voltage_sel,
|
|
.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 DCDC3, DCDC4 and LDO1 */
|
|
static struct regulator_ops tps65218_ldo1_dcdc34_ops = {
|
|
.is_enabled = regulator_is_enabled_regmap,
|
|
.enable = tps65218_pmic_enable,
|
|
.disable = tps65218_pmic_disable,
|
|
.get_voltage_sel = regulator_get_voltage_sel_regmap,
|
|
.set_voltage_sel = tps65218_pmic_set_voltage_sel,
|
|
.list_voltage = regulator_list_voltage_linear_range,
|
|
.map_voltage = regulator_map_voltage_linear_range,
|
|
};
|
|
|
|
/* Operations permitted on DCDC5, DCDC6 */
|
|
static struct regulator_ops tps65218_dcdc56_pmic_ops = {
|
|
.is_enabled = regulator_is_enabled_regmap,
|
|
.enable = tps65218_pmic_enable,
|
|
.disable = tps65218_pmic_disable,
|
|
};
|
|
|
|
static const struct regulator_desc regulators[] = {
|
|
TPS65218_REGULATOR("DCDC1", TPS65218_DCDC_1, tps65218_dcdc12_ops, 64,
|
|
TPS65218_REG_CONTROL_DCDC1,
|
|
TPS65218_CONTROL_DCDC1_MASK,
|
|
TPS65218_REG_ENABLE1, TPS65218_ENABLE1_DC1_EN, NULL,
|
|
dcdc1_dcdc2_ranges, 2, 4000),
|
|
TPS65218_REGULATOR("DCDC2", TPS65218_DCDC_2, tps65218_dcdc12_ops, 64,
|
|
TPS65218_REG_CONTROL_DCDC2,
|
|
TPS65218_CONTROL_DCDC2_MASK,
|
|
TPS65218_REG_ENABLE1, TPS65218_ENABLE1_DC2_EN, NULL,
|
|
dcdc1_dcdc2_ranges, 2, 4000),
|
|
TPS65218_REGULATOR("DCDC3", TPS65218_DCDC_3, tps65218_ldo1_dcdc34_ops,
|
|
64, TPS65218_REG_CONTROL_DCDC3,
|
|
TPS65218_CONTROL_DCDC3_MASK, TPS65218_REG_ENABLE1,
|
|
TPS65218_ENABLE1_DC3_EN, NULL,
|
|
ldo1_dcdc3_ranges, 2, 0),
|
|
TPS65218_REGULATOR("DCDC4", TPS65218_DCDC_4, tps65218_ldo1_dcdc34_ops,
|
|
53, TPS65218_REG_CONTROL_DCDC4,
|
|
TPS65218_CONTROL_DCDC4_MASK,
|
|
TPS65218_REG_ENABLE1, TPS65218_ENABLE1_DC4_EN, NULL,
|
|
dcdc4_ranges, 2, 0),
|
|
TPS65218_REGULATOR("DCDC5", TPS65218_DCDC_5, tps65218_dcdc56_pmic_ops,
|
|
1, -1, -1, TPS65218_REG_ENABLE1,
|
|
TPS65218_ENABLE1_DC5_EN, NULL, NULL, 0, 0),
|
|
TPS65218_REGULATOR("DCDC6", TPS65218_DCDC_6, tps65218_dcdc56_pmic_ops,
|
|
1, -1, -1, TPS65218_REG_ENABLE1,
|
|
TPS65218_ENABLE1_DC6_EN, NULL, NULL, 0, 0),
|
|
TPS65218_REGULATOR("LDO1", TPS65218_LDO_1, tps65218_ldo1_dcdc34_ops, 64,
|
|
TPS65218_REG_CONTROL_DCDC4,
|
|
TPS65218_CONTROL_LDO1_MASK, TPS65218_REG_ENABLE2,
|
|
TPS65218_ENABLE2_LDO1_EN, NULL, ldo1_dcdc3_ranges,
|
|
2, 0),
|
|
};
|
|
|
|
static int tps65218_regulator_probe(struct platform_device *pdev)
|
|
{
|
|
struct tps65218 *tps = dev_get_drvdata(pdev->dev.parent);
|
|
struct regulator_init_data *init_data;
|
|
const struct tps_info *template;
|
|
struct regulator_dev *rdev;
|
|
const struct of_device_id *match;
|
|
struct regulator_config config = { };
|
|
int id;
|
|
|
|
match = of_match_device(tps65218_of_match, &pdev->dev);
|
|
if (!match)
|
|
return -ENODEV;
|
|
|
|
template = match->data;
|
|
id = template->id;
|
|
init_data = of_get_regulator_init_data(&pdev->dev, pdev->dev.of_node);
|
|
|
|
platform_set_drvdata(pdev, tps);
|
|
|
|
tps->info[id] = &tps65218_pmic_regs[id];
|
|
config.dev = &pdev->dev;
|
|
config.init_data = init_data;
|
|
config.driver_data = tps;
|
|
config.regmap = tps->regmap;
|
|
|
|
rdev = devm_regulator_register(&pdev->dev, ®ulators[id], &config);
|
|
if (IS_ERR(rdev)) {
|
|
dev_err(tps->dev, "failed to register %s regulator\n",
|
|
pdev->name);
|
|
return PTR_ERR(rdev);
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static struct platform_driver tps65218_regulator_driver = {
|
|
.driver = {
|
|
.name = "tps65218-pmic",
|
|
.owner = THIS_MODULE,
|
|
.of_match_table = tps65218_of_match,
|
|
},
|
|
.probe = tps65218_regulator_probe,
|
|
};
|
|
|
|
module_platform_driver(tps65218_regulator_driver);
|
|
|
|
MODULE_AUTHOR("J Keerthy <j-keerthy@ti.com>");
|
|
MODULE_DESCRIPTION("TPS65218 voltage regulator driver");
|
|
MODULE_ALIAS("platform:tps65218-pmic");
|
|
MODULE_LICENSE("GPL v2");
|