// SPDX-License-Identifier: GPL-2.0-only /* * tps62360.c -- TI tps62360 * * Driver for processor core supply tps62360, tps62361B, tps62362 and tps62363. * * Copyright (c) 2012, NVIDIA Corporation. * * Author: Laxman Dewangan <[email protected]> */ #include <linux/kernel.h> #include <linux/module.h> #include <linux/init.h> #include <linux/err.h> #include <linux/of.h> #include <linux/of_device.h> #include <linux/regulator/of_regulator.h> #include <linux/platform_device.h> #include <linux/regulator/driver.h> #include <linux/regulator/machine.h> #include <linux/regulator/tps62360.h> #include <linux/gpio/consumer.h> #include <linux/i2c.h> #include <linux/slab.h> #include <linux/regmap.h> /* Register definitions */ #define REG_VSET0 … #define REG_VSET1 … #define REG_VSET2 … #define REG_VSET3 … #define REG_CONTROL … #define REG_TEMP … #define REG_RAMPCTRL … #define REG_CHIPID … #define FORCE_PWM_ENABLE … enum chips { … }; #define TPS62360_BASE_VOLTAGE … #define TPS62360_N_VOLTAGES … #define TPS62361_BASE_VOLTAGE … #define TPS62361_N_VOLTAGES … /* tps 62360 chip information */ struct tps62360_chip { … }; /* * find_voltage_set_register: Find new voltage configuration register * (VSET) id. * The finding of the new VSET register will be based on the LRU mechanism. * Each VSET register will have different voltage configured . This * Function will look if any of the VSET register have requested voltage set * or not. * - If it is already there then it will make that register as most * recently used and return as found so that caller need not to set * the VSET register but need to set the proper gpios to select this * VSET register. * - If requested voltage is not found then it will use the least * recently mechanism to get new VSET register for new configuration * and will return not_found so that caller need to set new VSET * register and then gpios (both). */ static bool find_voltage_set_register(struct tps62360_chip *tps, int req_vsel, int *vset_reg_id) { … } static int tps62360_dcdc_get_voltage_sel(struct regulator_dev *dev) { … } static int tps62360_dcdc_set_voltage_sel(struct regulator_dev *dev, unsigned selector) { … } static int tps62360_set_mode(struct regulator_dev *rdev, unsigned int mode) { … } static unsigned int tps62360_get_mode(struct regulator_dev *rdev) { … } static const struct regulator_ops tps62360_dcdc_ops = …; static int tps62360_init_dcdc(struct tps62360_chip *tps, struct tps62360_regulator_platform_data *pdata) { … } static const struct regmap_config tps62360_regmap_config = …; static struct tps62360_regulator_platform_data * of_get_tps62360_platform_data(struct device *dev, const struct regulator_desc *desc) { … } #if defined(CONFIG_OF) static const struct of_device_id tps62360_of_match[] = …; MODULE_DEVICE_TABLE(of, tps62360_of_match); #endif static int tps62360_probe(struct i2c_client *client) { … } static void tps62360_shutdown(struct i2c_client *client) { … } static const struct i2c_device_id tps62360_id[] = …; MODULE_DEVICE_TABLE(i2c, tps62360_id); static struct i2c_driver tps62360_i2c_driver = …; static int __init tps62360_init(void) { … } subsys_initcall(tps62360_init); static void __exit tps62360_cleanup(void) { … } module_exit(tps62360_cleanup); MODULE_AUTHOR(…) …; MODULE_DESCRIPTION(…) …; MODULE_LICENSE(…) …;
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