xref: /openbmc/linux/drivers/hwmon/pmbus/tps40422.c (revision 1975d167)
1 // SPDX-License-Identifier: GPL-2.0-or-later
2 /*
3  * Hardware monitoring driver for TI TPS40422
4  *
5  * Copyright (c) 2014 Nokia Solutions and Networks.
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 tps40422_info = {
16 	.pages = 2,
17 	.format[PSC_VOLTAGE_IN] = linear,
18 	.format[PSC_VOLTAGE_OUT] = linear,
19 	.format[PSC_TEMPERATURE] = linear,
20 	.func[0] = PMBUS_HAVE_VOUT | PMBUS_HAVE_TEMP2
21 		| PMBUS_HAVE_STATUS_VOUT | PMBUS_HAVE_STATUS_TEMP
22 		| PMBUS_HAVE_IOUT | PMBUS_HAVE_STATUS_IOUT,
23 	.func[1] = PMBUS_HAVE_VOUT | PMBUS_HAVE_TEMP2
24 		| PMBUS_HAVE_STATUS_VOUT | PMBUS_HAVE_STATUS_TEMP
25 		| PMBUS_HAVE_IOUT | PMBUS_HAVE_STATUS_IOUT,
26 };
27 
tps40422_probe(struct i2c_client * client)28 static int tps40422_probe(struct i2c_client *client)
29 {
30 	return pmbus_do_probe(client, &tps40422_info);
31 }
32 
33 static const struct i2c_device_id tps40422_id[] = {
34 	{"tps40422", 0},
35 	{}
36 };
37 
38 MODULE_DEVICE_TABLE(i2c, tps40422_id);
39 
40 /* This is the driver that will be inserted */
41 static struct i2c_driver tps40422_driver = {
42 	.driver = {
43 		   .name = "tps40422",
44 		   },
45 	.probe = tps40422_probe,
46 	.id_table = tps40422_id,
47 };
48 
49 module_i2c_driver(tps40422_driver);
50 
51 MODULE_AUTHOR("Zhu Laiwen <richard.zhu@nsn.com>");
52 MODULE_DESCRIPTION("PMBus driver for TI TPS40422");
53 MODULE_LICENSE("GPL");
54 MODULE_IMPORT_NS(PMBUS);
55