125 строки
3.7 KiB
C
125 строки
3.7 KiB
C
// SPDX-License-Identifier: GPL-2.0-or-later
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/* NXP PCF50633 PMIC Driver
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*
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* (C) 2006-2008 by Openmoko, Inc.
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* Author: Balaji Rao <balajirrao@openmoko.org>
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* All rights reserved.
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*
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* Broken down from monstrous PCF50633 driver mainly by
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* Harald Welte and Andy Green and Werner Almesberger
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*/
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#include <linux/kernel.h>
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#include <linux/module.h>
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#include <linux/init.h>
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#include <linux/device.h>
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#include <linux/err.h>
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#include <linux/platform_device.h>
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#include <linux/mfd/pcf50633/core.h>
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#include <linux/mfd/pcf50633/pmic.h>
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#define PCF50633_REGULATOR(_name, _id, _min_uV, _uV_step, _min_sel, _n) \
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{ \
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.name = _name, \
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.id = PCF50633_REGULATOR_##_id, \
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.ops = &pcf50633_regulator_ops, \
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.n_voltages = _n, \
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.min_uV = _min_uV, \
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.uV_step = _uV_step, \
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.linear_min_sel = _min_sel, \
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.type = REGULATOR_VOLTAGE, \
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.owner = THIS_MODULE, \
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.vsel_reg = PCF50633_REG_##_id##OUT, \
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.vsel_mask = 0xff, \
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.enable_reg = PCF50633_REG_##_id##OUT + 1, \
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.enable_mask = PCF50633_REGULATOR_ON, \
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}
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static const struct regulator_ops pcf50633_regulator_ops = {
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.set_voltage_sel = regulator_set_voltage_sel_regmap,
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.get_voltage_sel = regulator_get_voltage_sel_regmap,
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.list_voltage = regulator_list_voltage_linear,
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.map_voltage = regulator_map_voltage_linear,
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.enable = regulator_enable_regmap,
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.disable = regulator_disable_regmap,
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.is_enabled = regulator_is_enabled_regmap,
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};
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static const struct regulator_desc regulators[] = {
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[PCF50633_REGULATOR_AUTO] =
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PCF50633_REGULATOR("auto", AUTO, 1800000, 25000, 0x2f, 128),
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[PCF50633_REGULATOR_DOWN1] =
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PCF50633_REGULATOR("down1", DOWN1, 625000, 25000, 0, 96),
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[PCF50633_REGULATOR_DOWN2] =
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PCF50633_REGULATOR("down2", DOWN2, 625000, 25000, 0, 96),
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[PCF50633_REGULATOR_LDO1] =
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PCF50633_REGULATOR("ldo1", LDO1, 900000, 100000, 0, 28),
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[PCF50633_REGULATOR_LDO2] =
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PCF50633_REGULATOR("ldo2", LDO2, 900000, 100000, 0, 28),
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[PCF50633_REGULATOR_LDO3] =
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PCF50633_REGULATOR("ldo3", LDO3, 900000, 100000, 0, 28),
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[PCF50633_REGULATOR_LDO4] =
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PCF50633_REGULATOR("ldo4", LDO4, 900000, 100000, 0, 28),
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[PCF50633_REGULATOR_LDO5] =
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PCF50633_REGULATOR("ldo5", LDO5, 900000, 100000, 0, 28),
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[PCF50633_REGULATOR_LDO6] =
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PCF50633_REGULATOR("ldo6", LDO6, 900000, 100000, 0, 28),
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[PCF50633_REGULATOR_HCLDO] =
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PCF50633_REGULATOR("hcldo", HCLDO, 900000, 100000, 0, 28),
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[PCF50633_REGULATOR_MEMLDO] =
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PCF50633_REGULATOR("memldo", MEMLDO, 900000, 100000, 0, 28),
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};
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static int pcf50633_regulator_probe(struct platform_device *pdev)
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{
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struct regulator_dev *rdev;
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struct pcf50633 *pcf;
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struct regulator_config config = { };
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/* Already set by core driver */
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pcf = dev_to_pcf50633(pdev->dev.parent);
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config.dev = &pdev->dev;
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config.init_data = dev_get_platdata(&pdev->dev);
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config.driver_data = pcf;
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config.regmap = pcf->regmap;
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rdev = devm_regulator_register(&pdev->dev, ®ulators[pdev->id],
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&config);
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if (IS_ERR(rdev))
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return PTR_ERR(rdev);
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platform_set_drvdata(pdev, rdev);
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if (pcf->pdata->regulator_registered)
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pcf->pdata->regulator_registered(pcf, pdev->id);
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return 0;
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}
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static struct platform_driver pcf50633_regulator_driver = {
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.driver = {
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.name = "pcf50633-regulator",
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.probe_type = PROBE_PREFER_ASYNCHRONOUS,
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},
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.probe = pcf50633_regulator_probe,
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};
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static int __init pcf50633_regulator_init(void)
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{
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return platform_driver_register(&pcf50633_regulator_driver);
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}
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subsys_initcall(pcf50633_regulator_init);
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static void __exit pcf50633_regulator_exit(void)
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{
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platform_driver_unregister(&pcf50633_regulator_driver);
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}
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module_exit(pcf50633_regulator_exit);
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MODULE_AUTHOR("Balaji Rao <balajirrao@openmoko.org>");
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MODULE_DESCRIPTION("PCF50633 regulator driver");
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MODULE_LICENSE("GPL");
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MODULE_ALIAS("platform:pcf50633-regulator");
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