// SPDX-License-Identifier: GPL-2.0-or-later /* * Hardware monitoring driver for Maxim MAX6621 * * Copyright (c) 2017 Mellanox Technologies. All rights reserved. * Copyright (c) 2017 Vadim Pasternak <[email protected]> */ #include <linux/bitops.h> #include <linux/hwmon.h> #include <linux/hwmon-sysfs.h> #include <linux/i2c.h> #include <linux/init.h> #include <linux/module.h> #include <linux/of.h> #include <linux/regmap.h> #define MAX6621_DRV_NAME … #define MAX6621_TEMP_INPUT_REG_NUM … #define MAX6621_TEMP_INPUT_MIN … #define MAX6621_TEMP_INPUT_MAX … #define MAX6621_TEMP_ALERT_CHAN_SHIFT … #define MAX6621_TEMP_S0D0_REG … #define MAX6621_TEMP_S0D1_REG … #define MAX6621_TEMP_S1D0_REG … #define MAX6621_TEMP_S1D1_REG … #define MAX6621_TEMP_S2D0_REG … #define MAX6621_TEMP_S2D1_REG … #define MAX6621_TEMP_S3D0_REG … #define MAX6621_TEMP_S3D1_REG … #define MAX6621_TEMP_MAX_REG … #define MAX6621_TEMP_MAX_ADDR_REG … #define MAX6621_TEMP_ALERT_CAUSE_REG … #define MAX6621_CONFIG0_REG … #define MAX6621_CONFIG1_REG … #define MAX6621_CONFIG2_REG … #define MAX6621_CONFIG3_REG … #define MAX6621_TEMP_S0_ALERT_REG … #define MAX6621_TEMP_S1_ALERT_REG … #define MAX6621_TEMP_S2_ALERT_REG … #define MAX6621_TEMP_S3_ALERT_REG … #define MAX6621_CLEAR_ALERT_REG … #define MAX6621_REG_MAX … #define MAX6621_REG_TEMP_SHIFT … #define MAX6621_ENABLE_TEMP_ALERTS_BIT … #define MAX6621_ENABLE_I2C_CRC_BIT … #define MAX6621_ENABLE_ALTERNATE_DATA … #define MAX6621_ENABLE_LOCKUP_TO … #define MAX6621_ENABLE_S0D0_BIT … #define MAX6621_ENABLE_S3D1_BIT … #define MAX6621_ENABLE_TEMP_ALL … #define MAX6621_POLL_DELAY_MASK … #define MAX6621_CONFIG0_INIT … #define MAX6621_PECI_BIT_TIME … #define MAX6621_PECI_RETRY_NUM … #define MAX6621_CONFIG1_INIT … /* Error codes */ #define MAX6621_TRAN_FAILED … #define MAX6621_POOL_DIS … #define MAX6621_POOL_UNCOMPLETE … #define MAX6621_SD_DIS … #define MAX6621_ALERT_DIS … #define MAX6621_PECI_ERR_MIN … #define MAX6621_PECI_ERR_MAX … static const u32 max6621_temp_regs[] = …; static const char *const max6621_temp_labels[] = …; static const int max6621_temp_alert_chan2reg[] = …; /** * struct max6621_data - private data: * * @client: I2C client; * @regmap: register map handle; * @input_chan2reg: mapping from channel to register; */ struct max6621_data { … }; static long max6621_temp_mc2reg(long val) { … } static umode_t max6621_is_visible(const void *data, enum hwmon_sensor_types type, u32 attr, int channel) { … } static int max6621_verify_reg_data(struct device *dev, int regval) { … } static int max6621_read(struct device *dev, enum hwmon_sensor_types type, u32 attr, int channel, long *val) { … } static int max6621_write(struct device *dev, enum hwmon_sensor_types type, u32 attr, int channel, long val) { … } static int max6621_read_string(struct device *dev, enum hwmon_sensor_types type, u32 attr, int channel, const char **str) { … } static bool max6621_writeable_reg(struct device *dev, unsigned int reg) { … } static bool max6621_readable_reg(struct device *dev, unsigned int reg) { … } static bool max6621_volatile_reg(struct device *dev, unsigned int reg) { … } static const struct reg_default max6621_regmap_default[] = …; static const struct regmap_config max6621_regmap_config = …; static const struct hwmon_channel_info * const max6621_info[] = …; static const struct hwmon_ops max6621_hwmon_ops = …; static const struct hwmon_chip_info max6621_chip_info = …; static int max6621_probe(struct i2c_client *client) { … } static const struct i2c_device_id max6621_id[] = …; MODULE_DEVICE_TABLE(i2c, max6621_id); static const struct of_device_id __maybe_unused max6621_of_match[] = …; MODULE_DEVICE_TABLE(of, max6621_of_match); static struct i2c_driver max6621_driver = …; module_i2c_driver(…) …; MODULE_AUTHOR(…) …; MODULE_DESCRIPTION(…) …; MODULE_LICENSE(…) …;
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