// SPDX-License-Identifier: GPL-2.0-only /* * Copyright (C) 2016 Gateworks Corporation, Inc. All Rights Reserved. */ #include <linux/i2c.h> #include <linux/init.h> #include <linux/interrupt.h> #include <linux/module.h> #include <linux/kernel.h> #include <linux/of.h> #include <linux/regmap.h> #include <linux/regulator/driver.h> #include <linux/regulator/machine.h> #include <linux/regulator/of_regulator.h> #define DRIVER_NAME … /* LTC3676 Registers */ #define LTC3676_BUCK1 … #define LTC3676_BUCK2 … #define LTC3676_BUCK3 … #define LTC3676_BUCK4 … #define LTC3676_LDOA … #define LTC3676_LDOB … #define LTC3676_SQD1 … #define LTC3676_SQD2 … #define LTC3676_CNTRL … #define LTC3676_DVB1A … #define LTC3676_DVB1B … #define LTC3676_DVB2A … #define LTC3676_DVB2B … #define LTC3676_DVB3A … #define LTC3676_DVB3B … #define LTC3676_DVB4A … #define LTC3676_DVB4B … #define LTC3676_MSKIRQ … #define LTC3676_MSKPG … #define LTC3676_USER … #define LTC3676_IRQSTAT … #define LTC3676_PGSTATL … #define LTC3676_PGSTATRT … #define LTC3676_HRST … #define LTC3676_CLIRQ … #define LTC3676_DVBxA_REF_SELECT … #define LTC3676_DVBxB_PGOOD_MASK … #define LTC3676_IRQSTAT_PGOOD_TIMEOUT … #define LTC3676_IRQSTAT_UNDERVOLT_WARN … #define LTC3676_IRQSTAT_UNDERVOLT_FAULT … #define LTC3676_IRQSTAT_THERMAL_WARN … #define LTC3676_IRQSTAT_THERMAL_FAULT … enum ltc3676_reg { … }; struct ltc3676 { … }; static int ltc3676_set_suspend_voltage(struct regulator_dev *rdev, int uV) { … } static int ltc3676_set_suspend_mode(struct regulator_dev *rdev, unsigned int mode) { … } static int ltc3676_set_voltage_sel(struct regulator_dev *rdev, unsigned selector) { … } static inline unsigned int ltc3676_scale(unsigned int uV, u32 r1, u32 r2) { … } static int ltc3676_of_parse_cb(struct device_node *np, const struct regulator_desc *desc, struct regulator_config *config) { … } /* SW1, SW2, SW3, SW4 linear 0.8V-3.3V with scalar via R1/R2 feeback res */ static const struct regulator_ops ltc3676_linear_regulator_ops = …; /* LDO1 always on fixed 0.8V-3.3V via scalar via R1/R2 feeback res */ static const struct regulator_ops ltc3676_fixed_standby_regulator_ops = …; /* LDO2, LDO3 fixed (LDO2 has external scalar via R1/R2 feedback res) */ static const struct regulator_ops ltc3676_fixed_regulator_ops = …; #define LTC3676_REG(_id, _name, _ops, en_reg, en_bit, dvba_reg, dvb_mask) … #define LTC3676_LINEAR_REG(_id, _name, _en, _dvba) … #define LTC3676_FIXED_REG(_id, _name, _en_reg, _en_bit) … static const struct regulator_desc ltc3676_regulators[LTC3676_NUM_REGULATORS] = …; static bool ltc3676_readable_writeable_reg(struct device *dev, unsigned int reg) { … } static bool ltc3676_volatile_reg(struct device *dev, unsigned int reg) { … } static const struct regmap_config ltc3676_regmap_config = …; static irqreturn_t ltc3676_isr(int irq, void *dev_id) { … } static int ltc3676_regulator_probe(struct i2c_client *client) { … } static const struct i2c_device_id ltc3676_i2c_id[] = …; MODULE_DEVICE_TABLE(i2c, ltc3676_i2c_id); static const struct of_device_id __maybe_unused ltc3676_of_match[] = …; MODULE_DEVICE_TABLE(of, ltc3676_of_match); static struct i2c_driver ltc3676_driver = …; module_i2c_driver(…) …; MODULE_AUTHOR(…) …; MODULE_DESCRIPTION(…) …; MODULE_LICENSE(…) …;
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