diff options
Diffstat (limited to 'kernel/drivers/regulator/pcf50633-regulator.c')
| -rw-r--r-- | kernel/drivers/regulator/pcf50633-regulator.c | 128 |
1 files changed, 128 insertions, 0 deletions
diff --git a/kernel/drivers/regulator/pcf50633-regulator.c b/kernel/drivers/regulator/pcf50633-regulator.c new file mode 100644 index 000000000..134f90ec9 --- /dev/null +++ b/kernel/drivers/regulator/pcf50633-regulator.c @@ -0,0 +1,128 @@ +/* NXP PCF50633 PMIC Driver + * + * (C) 2006-2008 by Openmoko, Inc. + * Author: Balaji Rao <balajirrao@openmoko.org> + * All rights reserved. + * + * Broken down from monstrous PCF50633 driver mainly by + * Harald Welte and Andy Green and Werner Almesberger + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; either version 2 of the License, or (at your + * option) any later version. + * + */ + +#include <linux/kernel.h> +#include <linux/module.h> +#include <linux/init.h> +#include <linux/device.h> +#include <linux/err.h> +#include <linux/platform_device.h> + +#include <linux/mfd/pcf50633/core.h> +#include <linux/mfd/pcf50633/pmic.h> + +#define PCF50633_REGULATOR(_name, _id, _min_uV, _uV_step, _min_sel, _n) \ + { \ + .name = _name, \ + .id = PCF50633_REGULATOR_##_id, \ + .ops = &pcf50633_regulator_ops, \ + .n_voltages = _n, \ + .min_uV = _min_uV, \ + .uV_step = _uV_step, \ + .linear_min_sel = _min_sel, \ + .type = REGULATOR_VOLTAGE, \ + .owner = THIS_MODULE, \ + .vsel_reg = PCF50633_REG_##_id##OUT, \ + .vsel_mask = 0xff, \ + .enable_reg = PCF50633_REG_##_id##OUT + 1, \ + .enable_mask = PCF50633_REGULATOR_ON, \ + } + +static struct regulator_ops pcf50633_regulator_ops = { + .set_voltage_sel = regulator_set_voltage_sel_regmap, + .get_voltage_sel = regulator_get_voltage_sel_regmap, + .list_voltage = regulator_list_voltage_linear, + .map_voltage = regulator_map_voltage_linear, + .enable = regulator_enable_regmap, + .disable = regulator_disable_regmap, + .is_enabled = regulator_is_enabled_regmap, +}; + +static const struct regulator_desc regulators[] = { + [PCF50633_REGULATOR_AUTO] = + PCF50633_REGULATOR("auto", AUTO, 1800000, 25000, 0x2f, 128), + [PCF50633_REGULATOR_DOWN1] = + PCF50633_REGULATOR("down1", DOWN1, 625000, 25000, 0, 96), + [PCF50633_REGULATOR_DOWN2] = + PCF50633_REGULATOR("down2", DOWN2, 625000, 25000, 0, 96), + [PCF50633_REGULATOR_LDO1] = + PCF50633_REGULATOR("ldo1", LDO1, 900000, 100000, 0, 28), + [PCF50633_REGULATOR_LDO2] = + PCF50633_REGULATOR("ldo2", LDO2, 900000, 100000, 0, 28), + [PCF50633_REGULATOR_LDO3] = + PCF50633_REGULATOR("ldo3", LDO3, 900000, 100000, 0, 28), + [PCF50633_REGULATOR_LDO4] = + PCF50633_REGULATOR("ldo4", LDO4, 900000, 100000, 0, 28), + [PCF50633_REGULATOR_LDO5] = + PCF50633_REGULATOR("ldo5", LDO5, 900000, 100000, 0, 28), + [PCF50633_REGULATOR_LDO6] = + PCF50633_REGULATOR("ldo6", LDO6, 900000, 100000, 0, 28), + [PCF50633_REGULATOR_HCLDO] = + PCF50633_REGULATOR("hcldo", HCLDO, 900000, 100000, 0, 28), + [PCF50633_REGULATOR_MEMLDO] = + PCF50633_REGULATOR("memldo", MEMLDO, 900000, 100000, 0, 28), +}; + +static int pcf50633_regulator_probe(struct platform_device *pdev) +{ + struct regulator_dev *rdev; + struct pcf50633 *pcf; + struct regulator_config config = { }; + + /* Already set by core driver */ + pcf = dev_to_pcf50633(pdev->dev.parent); + + config.dev = &pdev->dev; + config.init_data = dev_get_platdata(&pdev->dev); + config.driver_data = pcf; + config.regmap = pcf->regmap; + + rdev = devm_regulator_register(&pdev->dev, ®ulators[pdev->id], + &config); + if (IS_ERR(rdev)) + return PTR_ERR(rdev); + + platform_set_drvdata(pdev, rdev); + + if (pcf->pdata->regulator_registered) + pcf->pdata->regulator_registered(pcf, pdev->id); + + return 0; +} + +static struct platform_driver pcf50633_regulator_driver = { + .driver = { + .name = "pcf50633-regulator", + }, + .probe = pcf50633_regulator_probe, +}; + +static int __init pcf50633_regulator_init(void) +{ + return platform_driver_register(&pcf50633_regulator_driver); +} +subsys_initcall(pcf50633_regulator_init); + +static void __exit pcf50633_regulator_exit(void) +{ + platform_driver_unregister(&pcf50633_regulator_driver); +} +module_exit(pcf50633_regulator_exit); + +MODULE_AUTHOR("Balaji Rao <balajirrao@openmoko.org>"); +MODULE_DESCRIPTION("PCF50633 regulator driver"); +MODULE_LICENSE("GPL"); +MODULE_ALIAS("platform:pcf50633-regulator"); |