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
max20751_probe(struct i2c_client * client,const struct i2c_device_id * id)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
