1 // SPDX-License-Identifier: GPL-2.0-or-later 2 /* 3 * Hardware monitoring driver for Maxim MAX20751 4 * 5 * Copyright (c) 2015 Guenter Roeck 6 */ 7 8 #include <linux/kernel.h> 9 #include <linux/module.h> 10 #include <linux/init.h> 11 #include <linux/err.h> 12 #include <linux/i2c.h> 13 #include "pmbus.h" 14 15 static struct pmbus_driver_info max20751_info = { 16 .pages = 1, 17 .format[PSC_VOLTAGE_IN] = linear, 18 .format[PSC_VOLTAGE_OUT] = vid, 19 .vrm_version[0] = vr12, 20 .format[PSC_TEMPERATURE] = linear, 21 .format[PSC_CURRENT_OUT] = linear, 22 .format[PSC_POWER] = linear, 23 .func[0] = PMBUS_HAVE_VIN | PMBUS_HAVE_VOUT | PMBUS_HAVE_STATUS_VOUT | 24 PMBUS_HAVE_IOUT | PMBUS_HAVE_STATUS_IOUT | 25 PMBUS_HAVE_TEMP | PMBUS_HAVE_STATUS_TEMP | 26 PMBUS_HAVE_POUT, 27 }; 28 29 static int max20751_probe(struct i2c_client *client) 30 { 31 return pmbus_do_probe(client, &max20751_info); 32 } 33 34 static const struct i2c_device_id max20751_id[] = { 35 {"max20751", 0}, 36 {} 37 }; 38 39 MODULE_DEVICE_TABLE(i2c, max20751_id); 40 41 static struct i2c_driver max20751_driver = { 42 .driver = { 43 .name = "max20751", 44 }, 45 .probe_new = max20751_probe, 46 .id_table = max20751_id, 47 }; 48 49 module_i2c_driver(max20751_driver); 50 51 MODULE_AUTHOR("Guenter Roeck <linux@roeck-us.net>"); 52 MODULE_DESCRIPTION("PMBus driver for Maxim MAX20751"); 53 MODULE_LICENSE("GPL"); 54