1 /* 2 * Hardware monitoring driver for Maxim MAX20751 3 * 4 * Copyright (c) 2015 Guenter Roeck 5 * 6 * This program is free software; you can redistribute it and/or modify 7 * it under the terms of the GNU General Public License as published by 8 * the Free Software Foundation; either version 2 of the License, or 9 * (at your option) any later version. 10 * 11 * This program is distributed in the hope that it will be useful, 12 * but WITHOUT ANY WARRANTY; without even the implied warranty of 13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 14 * GNU General Public License for more details. 15 */ 16 17 #include <linux/kernel.h> 18 #include <linux/module.h> 19 #include <linux/init.h> 20 #include <linux/err.h> 21 #include <linux/i2c.h> 22 #include "pmbus.h" 23 24 static struct pmbus_driver_info max20751_info = { 25 .pages = 1, 26 .format[PSC_VOLTAGE_IN] = linear, 27 .format[PSC_VOLTAGE_OUT] = vid, 28 .vrm_version = vr12, 29 .format[PSC_TEMPERATURE] = linear, 30 .format[PSC_CURRENT_OUT] = linear, 31 .format[PSC_POWER] = linear, 32 .func[0] = PMBUS_HAVE_VIN | PMBUS_HAVE_VOUT | PMBUS_HAVE_STATUS_VOUT | 33 PMBUS_HAVE_IOUT | PMBUS_HAVE_STATUS_IOUT | 34 PMBUS_HAVE_TEMP | PMBUS_HAVE_STATUS_TEMP | 35 PMBUS_HAVE_POUT, 36 }; 37 38 static int max20751_probe(struct i2c_client *client, 39 const struct i2c_device_id *id) 40 { 41 return pmbus_do_probe(client, id, &max20751_info); 42 } 43 44 static const struct i2c_device_id max20751_id[] = { 45 {"max20751", 0}, 46 {} 47 }; 48 49 MODULE_DEVICE_TABLE(i2c, max20751_id); 50 51 static struct i2c_driver max20751_driver = { 52 .driver = { 53 .name = "max20751", 54 }, 55 .probe = max20751_probe, 56 .remove = pmbus_do_remove, 57 .id_table = max20751_id, 58 }; 59 60 module_i2c_driver(max20751_driver); 61 62 MODULE_AUTHOR("Guenter Roeck <linux@roeck-us.net>"); 63 MODULE_DESCRIPTION("PMBus driver for Maxim MAX20751"); 64 MODULE_LICENSE("GPL"); 65