// SPDX-License-Identifier: GPL-2.0-or-later /* Driver for the Texas Instruments TMP464 SMBus temperature sensor IC. * Supported models: TMP464, TMP468 * Copyright (C) 2022 Agathe Porte <[email protected]> * Preliminary support by: * Lionel Pouliquen <[email protected]> */ #include <linux/err.h> #include <linux/hwmon.h> #include <linux/i2c.h> #include <linux/init.h> #include <linux/module.h> #include <linux/mutex.h> #include <linux/of.h> #include <linux/regmap.h> #include <linux/slab.h> /* Addresses to scan */ static const unsigned short normal_i2c[] = …; #define TMP464_NUM_CHANNELS … #define TMP468_NUM_CHANNELS … #define MAX_CHANNELS … #define TMP464_TEMP_REG(channel) … #define TMP464_TEMP_OFFSET_REG(channel) … #define TMP464_N_FACTOR_REG(channel) … static const u8 TMP464_THERM_LIMIT[MAX_CHANNELS] = …; static const u8 TMP464_THERM2_LIMIT[MAX_CHANNELS] = …; #define TMP464_THERM_STATUS_REG … #define TMP464_THERM2_STATUS_REG … #define TMP464_REMOTE_OPEN_REG … #define TMP464_CONFIG_REG … #define TMP464_TEMP_HYST_REG … #define TMP464_LOCK_REG … /* Identification */ #define TMP464_MANUFACTURER_ID_REG … #define TMP464_DEVICE_ID_REG … /* Flags */ #define TMP464_CONFIG_SHUTDOWN … #define TMP464_CONFIG_RANGE … #define TMP464_CONFIG_REG_REN(x) … #define TMP464_CONFIG_REG_REN_MASK … #define TMP464_CONFIG_CONVERSION_RATE_B0 … #define TMP464_CONFIG_CONVERSION_RATE_B2 … #define TMP464_CONFIG_CONVERSION_RATE_MASK … #define TMP464_UNLOCK_VAL … #define TMP464_LOCK_VAL … #define TMP464_LOCKED … /* Manufacturer / Device ID's */ #define TMP464_MANUFACTURER_ID … #define TMP464_DEVICE_ID … #define TMP468_DEVICE_ID … static const struct i2c_device_id tmp464_id[] = …; MODULE_DEVICE_TABLE(i2c, tmp464_id); static const struct of_device_id __maybe_unused tmp464_of_match[] = …; MODULE_DEVICE_TABLE(of, tmp464_of_match); struct tmp464_channel { … }; struct tmp464_data { … }; static int temp_from_reg(s16 reg) { … } static s16 temp_to_limit_reg(long temp) { … } static s16 temp_to_offset_reg(long temp) { … } static int tmp464_enable_channels(struct tmp464_data *data) { … } static int tmp464_chip_read(struct device *dev, u32 attr, int channel, long *val) { … } static int tmp464_temp_read(struct device *dev, u32 attr, int channel, long *val) { … } static int tmp464_read(struct device *dev, enum hwmon_sensor_types type, u32 attr, int channel, long *val) { … } static int tmp464_read_string(struct device *dev, enum hwmon_sensor_types type, u32 attr, int channel, const char **str) { … } static int tmp464_set_convrate(struct tmp464_data *data, long interval) { … } static int tmp464_chip_write(struct tmp464_data *data, u32 attr, int channel, long val) { … } static int tmp464_temp_write(struct tmp464_data *data, u32 attr, int channel, long val) { … } static int tmp464_write(struct device *dev, enum hwmon_sensor_types type, u32 attr, int channel, long val) { … } static umode_t tmp464_is_visible(const void *_data, enum hwmon_sensor_types type, u32 attr, int channel) { … } static void tmp464_restore_lock(void *regmap) { … } static void tmp464_restore_config(void *_data) { … } static int tmp464_init_client(struct device *dev, struct tmp464_data *data) { … } static int tmp464_detect(struct i2c_client *client, struct i2c_board_info *info) { … } static int tmp464_probe_child_from_dt(struct device *dev, struct device_node *child, struct tmp464_data *data) { … } static int tmp464_probe_from_dt(struct device *dev, struct tmp464_data *data) { … } static const struct hwmon_ops tmp464_ops = …; static const struct hwmon_channel_info * const tmp464_info[] = …; static const struct hwmon_chip_info tmp464_chip_info = …; /* regmap */ static bool tmp464_is_volatile_reg(struct device *dev, unsigned int reg) { … } static const struct regmap_config tmp464_regmap_config = …; static int tmp464_probe(struct i2c_client *client) { … } static struct i2c_driver tmp464_driver = …; module_i2c_driver(…) …; MODULE_AUTHOR(…) …; MODULE_DESCRIPTION(…) …; MODULE_LICENSE(…) …;
Codebase Browser
linux