// SPDX-License-Identifier: GPL-2.0-or-later /* * Copyright (c) 2012 Guenter Roeck <[email protected]> * * based on max1668.c * Copyright (c) 2011 David George <[email protected]> */ #include <linux/module.h> #include <linux/init.h> #include <linux/slab.h> #include <linux/jiffies.h> #include <linux/i2c.h> #include <linux/hwmon.h> #include <linux/hwmon-sysfs.h> #include <linux/err.h> #include <linux/mutex.h> #include <linux/of.h> #include <linux/platform_data/max6697.h> enum chips { … }; /* Report local sensor as temp1 */ static const u8 MAX6697_REG_TEMP[] = …; static const u8 MAX6697_REG_TEMP_EXT[] = …; static const u8 MAX6697_REG_MAX[] = …; static const u8 MAX6697_REG_CRIT[] = …; /* * Map device tree / platform data register bit map to chip bit map. * Applies to alert register and over-temperature register. */ #define MAX6697_ALERT_MAP_BITS(reg) … #define MAX6697_OVERT_MAP_BITS(reg) … #define MAX6697_REG_STAT(n) … #define MAX6697_REG_CONFIG … #define MAX6581_CONF_EXTENDED … #define MAX6693_CONF_BETA … #define MAX6697_CONF_RESISTANCE … #define MAX6697_CONF_TIMEOUT … #define MAX6697_REG_ALERT_MASK … #define MAX6697_REG_OVERT_MASK … #define MAX6581_REG_RESISTANCE … #define MAX6581_REG_IDEALITY … #define MAX6581_REG_IDEALITY_SELECT … #define MAX6581_REG_OFFSET … #define MAX6581_REG_OFFSET_SELECT … #define MAX6581_OFFSET_MIN … #define MAX6581_OFFSET_MAX … #define MAX6697_CONV_TIME … struct max6697_chip_data { … }; struct max6697_data { … }; /* Diode fault status bits on MAX6581 are right shifted by one bit */ static const u8 max6581_alarm_map[] = …; static const struct max6697_chip_data max6697_chip_data[] = …; static inline int max6581_offset_to_millic(int val) { … } static struct max6697_data *max6697_update_device(struct device *dev) { … } static ssize_t temp_input_show(struct device *dev, struct device_attribute *devattr, char *buf) { … } static ssize_t temp_show(struct device *dev, struct device_attribute *devattr, char *buf) { … } static ssize_t alarm_show(struct device *dev, struct device_attribute *attr, char *buf) { … } static ssize_t temp_store(struct device *dev, struct device_attribute *devattr, const char *buf, size_t count) { … } static ssize_t offset_store(struct device *dev, struct device_attribute *devattr, const char *buf, size_t count) { … } static ssize_t offset_show(struct device *dev, struct device_attribute *devattr, char *buf) { … } static SENSOR_DEVICE_ATTR_RO(temp1_input, temp_input, 0); static SENSOR_DEVICE_ATTR_2_RW(temp1_max, temp, 0, MAX6697_TEMP_MAX); static SENSOR_DEVICE_ATTR_2_RW(temp1_crit, temp, 0, MAX6697_TEMP_CRIT); static SENSOR_DEVICE_ATTR_RO(temp2_input, temp_input, 1); static SENSOR_DEVICE_ATTR_2_RW(temp2_max, temp, 1, MAX6697_TEMP_MAX); static SENSOR_DEVICE_ATTR_2_RW(temp2_crit, temp, 1, MAX6697_TEMP_CRIT); static SENSOR_DEVICE_ATTR_RO(temp3_input, temp_input, 2); static SENSOR_DEVICE_ATTR_2_RW(temp3_max, temp, 2, MAX6697_TEMP_MAX); static SENSOR_DEVICE_ATTR_2_RW(temp3_crit, temp, 2, MAX6697_TEMP_CRIT); static SENSOR_DEVICE_ATTR_RO(temp4_input, temp_input, 3); static SENSOR_DEVICE_ATTR_2_RW(temp4_max, temp, 3, MAX6697_TEMP_MAX); static SENSOR_DEVICE_ATTR_2_RW(temp4_crit, temp, 3, MAX6697_TEMP_CRIT); static SENSOR_DEVICE_ATTR_RO(temp5_input, temp_input, 4); static SENSOR_DEVICE_ATTR_2_RW(temp5_max, temp, 4, MAX6697_TEMP_MAX); static SENSOR_DEVICE_ATTR_2_RW(temp5_crit, temp, 4, MAX6697_TEMP_CRIT); static SENSOR_DEVICE_ATTR_RO(temp6_input, temp_input, 5); static SENSOR_DEVICE_ATTR_2_RW(temp6_max, temp, 5, MAX6697_TEMP_MAX); static SENSOR_DEVICE_ATTR_2_RW(temp6_crit, temp, 5, MAX6697_TEMP_CRIT); static SENSOR_DEVICE_ATTR_RO(temp7_input, temp_input, 6); static SENSOR_DEVICE_ATTR_2_RW(temp7_max, temp, 6, MAX6697_TEMP_MAX); static SENSOR_DEVICE_ATTR_2_RW(temp7_crit, temp, 6, MAX6697_TEMP_CRIT); static SENSOR_DEVICE_ATTR_RO(temp8_input, temp_input, 7); static SENSOR_DEVICE_ATTR_2_RW(temp8_max, temp, 7, MAX6697_TEMP_MAX); static SENSOR_DEVICE_ATTR_2_RW(temp8_crit, temp, 7, MAX6697_TEMP_CRIT); static SENSOR_DEVICE_ATTR_RO(temp1_max_alarm, alarm, 22); static SENSOR_DEVICE_ATTR_RO(temp2_max_alarm, alarm, 16); static SENSOR_DEVICE_ATTR_RO(temp3_max_alarm, alarm, 17); static SENSOR_DEVICE_ATTR_RO(temp4_max_alarm, alarm, 18); static SENSOR_DEVICE_ATTR_RO(temp5_max_alarm, alarm, 19); static SENSOR_DEVICE_ATTR_RO(temp6_max_alarm, alarm, 20); static SENSOR_DEVICE_ATTR_RO(temp7_max_alarm, alarm, 21); static SENSOR_DEVICE_ATTR_RO(temp8_max_alarm, alarm, 23); static SENSOR_DEVICE_ATTR_RO(temp1_crit_alarm, alarm, 15); static SENSOR_DEVICE_ATTR_RO(temp2_crit_alarm, alarm, 8); static SENSOR_DEVICE_ATTR_RO(temp3_crit_alarm, alarm, 9); static SENSOR_DEVICE_ATTR_RO(temp4_crit_alarm, alarm, 10); static SENSOR_DEVICE_ATTR_RO(temp5_crit_alarm, alarm, 11); static SENSOR_DEVICE_ATTR_RO(temp6_crit_alarm, alarm, 12); static SENSOR_DEVICE_ATTR_RO(temp7_crit_alarm, alarm, 13); static SENSOR_DEVICE_ATTR_RO(temp8_crit_alarm, alarm, 14); static SENSOR_DEVICE_ATTR_RO(temp2_fault, alarm, 1); static SENSOR_DEVICE_ATTR_RO(temp3_fault, alarm, 2); static SENSOR_DEVICE_ATTR_RO(temp4_fault, alarm, 3); static SENSOR_DEVICE_ATTR_RO(temp5_fault, alarm, 4); static SENSOR_DEVICE_ATTR_RO(temp6_fault, alarm, 5); static SENSOR_DEVICE_ATTR_RO(temp7_fault, alarm, 6); static SENSOR_DEVICE_ATTR_RO(temp8_fault, alarm, 7); /* There is no offset for local temperature so starting from temp2 */ static SENSOR_DEVICE_ATTR_RW(temp2_offset, offset, 1); static SENSOR_DEVICE_ATTR_RW(temp3_offset, offset, 2); static SENSOR_DEVICE_ATTR_RW(temp4_offset, offset, 3); static SENSOR_DEVICE_ATTR_RW(temp5_offset, offset, 4); static SENSOR_DEVICE_ATTR_RW(temp6_offset, offset, 5); static SENSOR_DEVICE_ATTR_RW(temp7_offset, offset, 6); static SENSOR_DEVICE_ATTR_RW(temp8_offset, offset, 7); static DEVICE_ATTR(dummy, 0, NULL, NULL); static umode_t max6697_is_visible(struct kobject *kobj, struct attribute *attr, int index) { … } /* * max6697_is_visible uses the index into the following array to determine * if attributes should be created or not. Any change in order or content * must be matched in max6697_is_visible. */ static struct attribute *max6697_attributes[] = …; static const struct attribute_group max6697_group = …; __ATTRIBUTE_GROUPS(…); static void max6697_get_config_of(struct device_node *node, struct max6697_platform_data *pdata) { … } static int max6697_init_chip(struct max6697_data *data, struct i2c_client *client) { … } static int max6697_probe(struct i2c_client *client) { … } static const struct i2c_device_id max6697_id[] = …; MODULE_DEVICE_TABLE(i2c, max6697_id); static const struct of_device_id __maybe_unused max6697_of_match[] = …; MODULE_DEVICE_TABLE(of, max6697_of_match); static struct i2c_driver max6697_driver = …; module_i2c_driver(…) …; MODULE_AUTHOR(…) …; MODULE_DESCRIPTION(…) …; MODULE_LICENSE(…) …;
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