/* * 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");