// SPDX-License-Identifier: GPL-2.0 // // sky81452-regulator.c SKY81452 regulator driver // // Copyright 2014 Skyworks Solutions Inc. // Author : Gyungoh Yoo <jack.yoo@skyworksinc.com> #include <linux/module.h> #include <linux/kernel.h> #include <linux/platform_device.h> #include <linux/init.h> #include <linux/err.h> #include <linux/of.h> #include <linux/regulator/driver.h> #include <linux/regulator/of_regulator.h> /* registers */ #define SKY81452_REG1 0x01 #define SKY81452_REG3 0x03 /* bit mask */ #define SKY81452_LEN 0x40 #define SKY81452_LOUT 0x1F static const struct regulator_ops sky81452_reg_ops = { .list_voltage = regulator_list_voltage_linear_range, .map_voltage = regulator_map_voltage_linear_range, .get_voltage_sel = regulator_get_voltage_sel_regmap, .set_voltage_sel = regulator_set_voltage_sel_regmap, .enable = regulator_enable_regmap, .disable = regulator_disable_regmap, .is_enabled = regulator_is_enabled_regmap, }; static const struct linear_range sky81452_reg_ranges[] = { REGULATOR_LINEAR_RANGE(4500000, 0, 14, 250000), REGULATOR_LINEAR_RANGE(9000000, 15, 31, 1000000), }; static const struct regulator_desc sky81452_reg = { .name = "LOUT", .of_match = of_match_ptr("lout"), .regulators_node = of_match_ptr("regulator"), .ops = &sky81452_reg_ops, .type = REGULATOR_VOLTAGE, .owner = THIS_MODULE, .n_voltages = SKY81452_LOUT + 1, .linear_ranges = sky81452_reg_ranges, .n_linear_ranges = ARRAY_SIZE(sky81452_reg_ranges), .vsel_reg = SKY81452_REG3, .vsel_mask = SKY81452_LOUT, .enable_reg = SKY81452_REG1, .enable_mask = SKY81452_LEN, }; static int sky81452_reg_probe(struct platform_device *pdev) { struct device *dev = &pdev->dev; const struct regulator_init_data *init_data = dev_get_platdata(dev); struct regulator_config config = { }; struct regulator_dev *rdev; config.dev = dev->parent; config.init_data = init_data; config.of_node = dev->of_node; config.regmap = dev_get_drvdata(dev->parent); rdev = devm_regulator_register(dev, &sky81452_reg, &config); if (IS_ERR(rdev)) { dev_err(dev, "failed to register. err=%ld\n", PTR_ERR(rdev)); return PTR_ERR(rdev); } platform_set_drvdata(pdev, rdev); return 0; } static struct platform_driver sky81452_reg_driver = { .driver = { .name = "sky81452-regulator", }, .probe = sky81452_reg_probe, }; module_platform_driver(sky81452_reg_driver); MODULE_DESCRIPTION("Skyworks SKY81452 Regulator driver"); MODULE_AUTHOR("Gyungoh Yoo <jack.yoo@skyworksinc.com>"); MODULE_LICENSE("GPL v2");