// SPDX-License-Identifier: GPL-2.0 // // FAN53555 Fairchild Digitally Programmable TinyBuck Regulator Driver. // // Supported Part Numbers: // FAN53555UC00X/01X/03X/04X/05X // // Copyright (c) 2012 Marvell Technology Ltd. // Yunfan Zhang <[email protected]> #include <linux/bitops.h> #include <linux/err.h> #include <linux/i2c.h> #include <linux/module.h> #include <linux/of.h> #include <linux/param.h> #include <linux/platform_device.h> #include <linux/regmap.h> #include <linux/regulator/driver.h> #include <linux/regulator/fan53555.h> #include <linux/regulator/machine.h> #include <linux/regulator/of_regulator.h> #include <linux/slab.h> /* Voltage setting */ #define FAN53555_VSEL0 … #define FAN53555_VSEL1 … #define RK8602_VSEL0 … #define RK8602_VSEL1 … #define TCS4525_VSEL0 … #define TCS4525_VSEL1 … #define TCS4525_TIME … #define TCS4525_COMMAND … /* Control register */ #define FAN53555_CONTROL … /* IC Type */ #define FAN53555_ID1 … /* IC mask version */ #define FAN53555_ID2 … /* Monitor register */ #define FAN53555_MONITOR … /* VSEL bit definitions */ #define VSEL_BUCK_EN … #define VSEL_MODE … /* Chip ID and Version */ #define DIE_ID … #define DIE_REV … /* Control bit definitions */ #define CTL_OUTPUT_DISCHG … #define CTL_SLEW_MASK … #define CTL_RESET … #define CTL_MODE_VSEL0_MODE … #define CTL_MODE_VSEL1_MODE … #define FAN53555_NVOLTAGES … #define FAN53526_NVOLTAGES … #define RK8602_NVOLTAGES … #define TCS_VSEL0_MODE … #define TCS_VSEL1_MODE … #define TCS_SLEW_MASK … enum fan53555_vendor { … }; enum { … }; enum { … }; /* IC Type */ enum { … }; enum { … }; enum { … }; enum { … }; enum { … }; /* IC mask revision */ enum { … }; enum { … }; struct fan53555_device_info { … }; static int fan53555_set_suspend_voltage(struct regulator_dev *rdev, int uV) { … } static int fan53555_set_suspend_enable(struct regulator_dev *rdev) { … } static int fan53555_set_suspend_disable(struct regulator_dev *rdev) { … } static int fan53555_set_mode(struct regulator_dev *rdev, unsigned int mode) { … } static unsigned int fan53555_get_mode(struct regulator_dev *rdev) { … } static const unsigned int slew_rates[] = …; static const unsigned int tcs_slew_rates[] = …; static const struct regulator_ops fan53555_regulator_ops = …; static int fan53526_voltages_setup_fairchild(struct fan53555_device_info *di) { … } static int fan53555_voltages_setup_fairchild(struct fan53555_device_info *di) { … } static int fan53555_voltages_setup_rockchip(struct fan53555_device_info *di) { … } static int rk8602_voltages_setup_rockchip(struct fan53555_device_info *di) { … } static int fan53555_voltages_setup_silergy(struct fan53555_device_info *di) { … } static int fan53526_voltages_setup_tcs(struct fan53555_device_info *di) { … } /* For 00,01,03,05 options: * VOUT = 0.60V + NSELx * 10mV, from 0.60 to 1.23V. * For 04 option: * VOUT = 0.603V + NSELx * 12.826mV, from 0.603 to 1.411V. * */ static int fan53555_device_setup(struct fan53555_device_info *di, struct fan53555_platform_data *pdata) { … } static int fan53555_regulator_register(struct fan53555_device_info *di, struct regulator_config *config) { … } static const struct regmap_config fan53555_regmap_config = …; static struct fan53555_platform_data *fan53555_parse_dt(struct device *dev, struct device_node *np, const struct regulator_desc *desc) { … } static const struct of_device_id __maybe_unused fan53555_dt_ids[] = …; MODULE_DEVICE_TABLE(of, fan53555_dt_ids); static int fan53555_regulator_probe(struct i2c_client *client) { … } static const struct i2c_device_id fan53555_id[] = …; MODULE_DEVICE_TABLE(i2c, fan53555_id); static struct i2c_driver fan53555_regulator_driver = …; module_i2c_driver(…) …; MODULE_AUTHOR(…) …; MODULE_DESCRIPTION(…) …; MODULE_LICENSE(…) …;
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