101 строка
3.2 KiB
C
101 строка
3.2 KiB
C
/*
|
|
* Regulator driver for Ricoh RN5T618 PMIC
|
|
*
|
|
* Copyright (C) 2014 Beniamino Galvani <b.galvani@gmail.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.
|
|
*
|
|
* You should have received a copy of the GNU General Public License
|
|
* along with this program. If not, see <http://www.gnu.org/licenses/>.
|
|
*/
|
|
|
|
#include <linux/mfd/rn5t618.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/of_regulator.h>
|
|
|
|
static struct regulator_ops rn5t618_reg_ops = {
|
|
.enable = regulator_enable_regmap,
|
|
.disable = regulator_disable_regmap,
|
|
.is_enabled = regulator_is_enabled_regmap,
|
|
.set_voltage_sel = regulator_set_voltage_sel_regmap,
|
|
.get_voltage_sel = regulator_get_voltage_sel_regmap,
|
|
.list_voltage = regulator_list_voltage_linear,
|
|
};
|
|
|
|
#define REG(rid, ereg, emask, vreg, vmask, min, max, step) \
|
|
[RN5T618_##rid] = { \
|
|
.name = #rid, \
|
|
.of_match = of_match_ptr(#rid), \
|
|
.regulators_node = of_match_ptr("regulators"), \
|
|
.id = RN5T618_##rid, \
|
|
.type = REGULATOR_VOLTAGE, \
|
|
.owner = THIS_MODULE, \
|
|
.ops = &rn5t618_reg_ops, \
|
|
.n_voltages = ((max) - (min)) / (step) + 1, \
|
|
.min_uV = (min), \
|
|
.uV_step = (step), \
|
|
.enable_reg = RN5T618_##ereg, \
|
|
.enable_mask = (emask), \
|
|
.vsel_reg = RN5T618_##vreg, \
|
|
.vsel_mask = (vmask), \
|
|
}
|
|
|
|
static struct regulator_desc rn5t618_regulators[] = {
|
|
/* DCDC */
|
|
REG(DCDC1, DC1CTL, BIT(0), DC1DAC, 0xff, 600000, 3500000, 12500),
|
|
REG(DCDC2, DC2CTL, BIT(0), DC2DAC, 0xff, 600000, 3500000, 12500),
|
|
REG(DCDC3, DC3CTL, BIT(0), DC3DAC, 0xff, 600000, 3500000, 12500),
|
|
/* LDO */
|
|
REG(LDO1, LDOEN1, BIT(0), LDO1DAC, 0x7f, 900000, 3500000, 25000),
|
|
REG(LDO2, LDOEN1, BIT(1), LDO2DAC, 0x7f, 900000, 3500000, 25000),
|
|
REG(LDO3, LDOEN1, BIT(2), LDO3DAC, 0x7f, 600000, 3500000, 25000),
|
|
REG(LDO4, LDOEN1, BIT(3), LDO4DAC, 0x7f, 900000, 3500000, 25000),
|
|
REG(LDO5, LDOEN1, BIT(4), LDO5DAC, 0x7f, 900000, 3500000, 25000),
|
|
/* LDO RTC */
|
|
REG(LDORTC1, LDOEN2, BIT(4), LDORTCDAC, 0x7f, 1700000, 3500000, 25000),
|
|
REG(LDORTC2, LDOEN2, BIT(5), LDORTC2DAC, 0x7f, 900000, 3500000, 25000),
|
|
};
|
|
|
|
static int rn5t618_regulator_probe(struct platform_device *pdev)
|
|
{
|
|
struct rn5t618 *rn5t618 = dev_get_drvdata(pdev->dev.parent);
|
|
struct regulator_config config = { };
|
|
struct regulator_dev *rdev;
|
|
int i;
|
|
|
|
for (i = 0; i < RN5T618_REG_NUM; i++) {
|
|
config.dev = pdev->dev.parent;
|
|
config.regmap = rn5t618->regmap;
|
|
|
|
rdev = devm_regulator_register(&pdev->dev,
|
|
&rn5t618_regulators[i],
|
|
&config);
|
|
if (IS_ERR(rdev)) {
|
|
dev_err(&pdev->dev, "failed to register %s regulator\n",
|
|
rn5t618_regulators[i].name);
|
|
return PTR_ERR(rdev);
|
|
}
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static struct platform_driver rn5t618_regulator_driver = {
|
|
.probe = rn5t618_regulator_probe,
|
|
.driver = {
|
|
.name = "rn5t618-regulator",
|
|
},
|
|
};
|
|
|
|
module_platform_driver(rn5t618_regulator_driver);
|
|
|
|
MODULE_AUTHOR("Beniamino Galvani <b.galvani@gmail.com>");
|
|
MODULE_DESCRIPTION("RN5T618 regulator driver");
|
|
MODULE_LICENSE("GPL v2");
|