1 // SPDX-License-Identifier: GPL-2.0-or-later
2 /*
3 * Hardware monitoring driver for Infineon Multi-phase Digital VR Controllers
4 *
5 * Copyright (c) 2022 Infineon Technologies. All rights reserved.
6 */
7
8 #include <linux/err.h>
9 #include <linux/i2c.h>
10 #include <linux/init.h>
11 #include <linux/kernel.h>
12 #include <linux/module.h>
13 #include "pmbus.h"
14
15 #define XDPE152_PAGE_NUM 2
16
17 static struct pmbus_driver_info xdpe152_info = {
18 .pages = XDPE152_PAGE_NUM,
19 .format[PSC_VOLTAGE_IN] = linear,
20 .format[PSC_VOLTAGE_OUT] = linear,
21 .format[PSC_TEMPERATURE] = linear,
22 .format[PSC_CURRENT_IN] = linear,
23 .format[PSC_CURRENT_OUT] = linear,
24 .format[PSC_POWER] = linear,
25 .func[0] = PMBUS_HAVE_VIN | PMBUS_HAVE_VOUT | PMBUS_HAVE_STATUS_VOUT |
26 PMBUS_HAVE_IIN | PMBUS_HAVE_IOUT | PMBUS_HAVE_STATUS_IOUT |
27 PMBUS_HAVE_TEMP | PMBUS_HAVE_TEMP2 | PMBUS_HAVE_STATUS_TEMP |
28 PMBUS_HAVE_POUT | PMBUS_HAVE_PIN | PMBUS_HAVE_STATUS_INPUT,
29 .func[1] = PMBUS_HAVE_VIN | PMBUS_HAVE_VOUT | PMBUS_HAVE_STATUS_VOUT |
30 PMBUS_HAVE_IIN | PMBUS_HAVE_IOUT | PMBUS_HAVE_STATUS_IOUT |
31 PMBUS_HAVE_POUT | PMBUS_HAVE_PIN | PMBUS_HAVE_STATUS_INPUT,
32 };
33
xdpe152_probe(struct i2c_client * client)34 static int xdpe152_probe(struct i2c_client *client)
35 {
36 struct pmbus_driver_info *info;
37
38 info = devm_kmemdup(&client->dev, &xdpe152_info, sizeof(*info),
39 GFP_KERNEL);
40 if (!info)
41 return -ENOMEM;
42
43 return pmbus_do_probe(client, info);
44 }
45
46 static const struct i2c_device_id xdpe152_id[] = {
47 {"xdpe152c4"},
48 {"xdpe15284"},
49 {}
50 };
51
52 MODULE_DEVICE_TABLE(i2c, xdpe152_id);
53
54 static const struct of_device_id __maybe_unused xdpe152_of_match[] = {
55 {.compatible = "infineon,xdpe152c4"},
56 {.compatible = "infineon,xdpe15284"},
57 {}
58 };
59 MODULE_DEVICE_TABLE(of, xdpe152_of_match);
60
61 static struct i2c_driver xdpe152_driver = {
62 .driver = {
63 .name = "xdpe152c4",
64 .of_match_table = of_match_ptr(xdpe152_of_match),
65 },
66 .probe = xdpe152_probe,
67 .id_table = xdpe152_id,
68 };
69
70 module_i2c_driver(xdpe152_driver);
71
72 MODULE_AUTHOR("Greg Schwendimann <greg.schwendimann@infineon.com>");
73 MODULE_DESCRIPTION("PMBus driver for Infineon XDPE152 family");
74 MODULE_LICENSE("GPL");
75 MODULE_IMPORT_NS(PMBUS);
76