regulator: rn5t618: add driver for Ricoh RN5T618 regulators (811b7006) · Commits · e / devices / android_kernel_oneplus_sm7250

drivers/regulator/Kconfig

+6 −0

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		@@ -469,6 +469,12 @@ config REGULATOR_RK808
		through regulator interface. The device supports multiple DCDC/LDO
		outputs which can be controlled by i2c communication.

		config REGULATOR_RN5T618
		tristate "Ricoh RN5T618 voltage regulators"
		depends on MFD_RN5T618
		help
		Say y here to support the regulators found on Ricoh RN5T618 PMIC.

		config REGULATOR_S2MPA01
		tristate "Samsung S2MPA01 voltage regulator"
		depends on MFD_SEC_CORE

drivers/regulator/Makefile

+1 −0

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		@@ -63,6 +63,7 @@ obj-$(CONFIG_REGULATOR_PCAP) += pcap-regulator.o
		obj-$(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_S2MPA01) += s2mpa01.o
		obj-$(CONFIG_REGULATOR_S2MPS11) += s2mps11.o
		obj-$(CONFIG_REGULATOR_S5M8767) += s5m8767.o

drivers/regulator/rn5t618-regulator.c

0 → 100644

+143 −0

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		/*
		* 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, \
		.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 struct of_regulator_match rn5t618_matches[] = {
		[RN5T618_DCDC1] = { .name = "DCDC1" },
		[RN5T618_DCDC2] = { .name = "DCDC2" },
		[RN5T618_DCDC3] = { .name = "DCDC3" },
		[RN5T618_LDO1] = { .name = "LDO1" },
		[RN5T618_LDO2] = { .name = "LDO2" },
		[RN5T618_LDO3] = { .name = "LDO3" },
		[RN5T618_LDO4] = { .name = "LDO4" },
		[RN5T618_LDO5] = { .name = "LDO5" },
		[RN5T618_LDORTC1] = { .name = "LDORTC1" },
		[RN5T618_LDORTC2] = { .name = "LDORTC2" },
		};

		static int rn5t618_regulator_parse_dt(struct platform_device *pdev)
		{
		struct device_node np, regulators;
		int ret;

		np = of_node_get(pdev->dev.parent->of_node);
		if (!np)
		return 0;

		regulators = of_get_child_by_name(np, "regulators");
		if (!regulators) {
		dev_err(&pdev->dev, "regulators node not found\n");
		return -EINVAL;
		}

		ret = of_regulator_match(&pdev->dev, regulators, rn5t618_matches,
		ARRAY_SIZE(rn5t618_matches));
		of_node_put(regulators);
		if (ret < 0) {
		dev_err(&pdev->dev, "error parsing regulator init data: %d\n",
		ret);
		}

		return 0;
		}

		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 ret, i;

		ret = rn5t618_regulator_parse_dt(pdev);
		if (ret)
		return ret;

		for (i = 0; i < RN5T618_REG_NUM; i++) {
		config.dev = &pdev->dev;
		config.init_data = rn5t618_matches[i].init_data;
		config.of_node = rn5t618_matches[i].of_node;
		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");