diff options
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/regulator/Kconfig | 8 | ||||
| -rw-r--r-- | drivers/regulator/Makefile | 1 | ||||
| -rw-r--r-- | drivers/regulator/rt5033-regulator.c | 123 |
3 files changed, 132 insertions, 0 deletions
diff --git a/drivers/regulator/Kconfig b/drivers/regulator/Kconfig index 55d7b7b0f2e0..8558e1b21f05 100644 --- a/drivers/regulator/Kconfig +++ b/drivers/regulator/Kconfig @@ -521,6 +521,14 @@ config REGULATOR_RN5T618 help Say y here to support the regulators found on Ricoh RN5T618 PMIC. +config REGULATOR_RT5033 + tristate "Richtek RT5033 Regulators" + depends on MFD_RT5033 + help + This adds support for voltage and current regulators in Richtek + RT5033 PMIC. The device supports multiple regulators like + current source, LDO and Buck. + config REGULATOR_S2MPA01 tristate "Samsung S2MPA01 voltage regulator" depends on MFD_SEC_CORE diff --git a/drivers/regulator/Makefile b/drivers/regulator/Makefile index 1029ed39c512..1f28ebfc6f3a 100644 --- a/drivers/regulator/Makefile +++ b/drivers/regulator/Makefile @@ -69,6 +69,7 @@ obj-$(CONFIG_REGULATOR_PCF50633) += pcf50633-regulator.o obj-$(CONFIG_REGULATOR_RC5T583) += rc5t583-regulator.o obj-$(CONFIG_REGULATOR_RK808) += rk808-regulator.o obj-$(CONFIG_REGULATOR_RN5T618) += rn5t618-regulator.o +obj-$(CONFIG_REGULATOR_RT5033) += rt5033-regulator.o obj-$(CONFIG_REGULATOR_S2MPA01) += s2mpa01.o obj-$(CONFIG_REGULATOR_S2MPS11) += s2mps11.o obj-$(CONFIG_REGULATOR_S5M8767) += s5m8767.o diff --git a/drivers/regulator/rt5033-regulator.c b/drivers/regulator/rt5033-regulator.c new file mode 100644 index 000000000000..870cc49438db --- /dev/null +++ b/drivers/regulator/rt5033-regulator.c @@ -0,0 +1,123 @@ +/* + * Regulator driver for the Richtek RT5033 + * + * Copyright (C) 2014 Samsung Electronics, Co., Ltd. + * Author: Beomho Seo <beomho.seo@samsung.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 bythe Free Software Foundation. + */ + +#include <linux/module.h> +#include <linux/platform_device.h> +#include <linux/regulator/driver.h> +#include <linux/mfd/rt5033.h> +#include <linux/mfd/rt5033-private.h> +#include <linux/regulator/of_regulator.h> + +static struct regulator_ops rt5033_safe_ldo_ops = { + .is_enabled = regulator_is_enabled_regmap, + .enable = regulator_enable_regmap, + .disable = regulator_disable_regmap, + .list_voltage = regulator_list_voltage_linear, +}; + +static struct regulator_ops rt5033_buck_ops = { + .is_enabled = regulator_is_enabled_regmap, + .enable = regulator_enable_regmap, + .disable = regulator_disable_regmap, + .list_voltage = regulator_list_voltage_linear, + .map_voltage = regulator_map_voltage_linear, + .get_voltage_sel = regulator_get_voltage_sel_regmap, + .set_voltage_sel = regulator_set_voltage_sel_regmap, +}; + +static const struct regulator_desc rt5033_supported_regulators[] = { + [RT5033_BUCK] = { + .name = "BUCK", + .id = RT5033_BUCK, + .ops = &rt5033_buck_ops, + .type = REGULATOR_VOLTAGE, + .owner = THIS_MODULE, + .n_voltages = RT5033_REGULATOR_BUCK_VOLTAGE_STEP_NUM, + .min_uV = RT5033_REGULATOR_BUCK_VOLTAGE_MIN, + .uV_step = RT5033_REGULATOR_BUCK_VOLTAGE_STEP, + .enable_reg = RT5033_REG_CTRL, + .enable_mask = RT5033_CTRL_EN_BUCK_MASK, + .vsel_reg = RT5033_REG_BUCK_CTRL, + .vsel_mask = RT5033_BUCK_CTRL_MASK, + }, + [RT5033_LDO] = { + .name = "LDO", + .id = RT5033_LDO, + .ops = &rt5033_buck_ops, + .type = REGULATOR_VOLTAGE, + .owner = THIS_MODULE, + .n_voltages = RT5033_REGULATOR_LDO_VOLTAGE_STEP_NUM, + .min_uV = RT5033_REGULATOR_LDO_VOLTAGE_MIN, + .uV_step = RT5033_REGULATOR_LDO_VOLTAGE_STEP, + .enable_reg = RT5033_REG_CTRL, + .enable_mask = RT5033_CTRL_EN_LDO_MASK, + .vsel_reg = RT5033_REG_LDO_CTRL, + .vsel_mask = RT5033_LDO_CTRL_MASK, + }, + [RT5033_SAFE_LDO] = { + .name = "SAFE_LDO", + .id = RT5033_SAFE_LDO, + .ops = &rt5033_safe_ldo_ops, + .type = REGULATOR_VOLTAGE, + .owner = THIS_MODULE, + .n_voltages = 1, + .min_uV = RT5033_REGULATOR_SAFE_LDO_VOLTAGE, + .enable_reg = RT5033_REG_CTRL, + .enable_mask = RT5033_CTRL_EN_SAFE_LDO_MASK, + }, +}; + +static int rt5033_regulator_probe(struct platform_device *pdev) +{ + struct rt5033_dev *rt5033 = dev_get_drvdata(pdev->dev.parent); + int ret, i; + struct regulator_config config = {}; + + config.dev = &pdev->dev; + config.driver_data = rt5033; + + for (i = 0; i < ARRAY_SIZE(rt5033_supported_regulators); i++) { + struct regulator_dev *regulator; + + config.regmap = rt5033->regmap; + + regulator = devm_regulator_register(&pdev->dev, + &rt5033_supported_regulators[i], &config); + if (IS_ERR(regulator)) { + ret = PTR_ERR(regulator); + dev_err(&pdev->dev, + "Regulator init failed %d: with error: %d\n", + i, ret); + return ret; + } + } + + return 0; +} + +static const struct platform_device_id rt5033_regulator_id[] = { + { "rt5033-regulator", }, + { } +}; +MODULE_DEVICE_TABLE(platform, rt5033_regulator_id); + +static struct platform_driver rt5033_regulator_driver = { + .driver = { + .name = "rt5033-regulator", + }, + .probe = rt5033_regulator_probe, + .id_table = rt5033_regulator_id, +}; +module_platform_driver(rt5033_regulator_driver); + +MODULE_DESCRIPTION("Richtek RT5033 Regulator driver"); +MODULE_AUTHOR("Beomho Seo <beomho.seo@samsung.com>"); +MODULE_LICENSE("GPL"); |