1// SPDX-License-Identifier: GPL-2.0-or-later
2/*
3 * Driver for MPS MP5023 Hot-Swap Controller
4 */
5
6#include <linux/i2c.h>
7#include <linux/module.h>
8#include <linux/of.h>
9#include "pmbus.h"
10
11static struct pmbus_driver_info mp5023_info = {
12	.pages = 1,
13
14	.format[PSC_VOLTAGE_IN] = direct,
15	.format[PSC_VOLTAGE_OUT] = direct,
16	.format[PSC_CURRENT_OUT] = direct,
17	.format[PSC_POWER] = direct,
18	.format[PSC_TEMPERATURE] = direct,
19
20	.m[PSC_VOLTAGE_IN] = 32,
21	.b[PSC_VOLTAGE_IN] = 0,
22	.R[PSC_VOLTAGE_IN] = 0,
23	.m[PSC_VOLTAGE_OUT] = 32,
24	.b[PSC_VOLTAGE_OUT] = 0,
25	.R[PSC_VOLTAGE_OUT] = 0,
26	.m[PSC_CURRENT_OUT] = 16,
27	.b[PSC_CURRENT_OUT] = 0,
28	.R[PSC_CURRENT_OUT] = 0,
29	.m[PSC_POWER] = 1,
30	.b[PSC_POWER] = 0,
31	.R[PSC_POWER] = 0,
32	.m[PSC_TEMPERATURE] = 2,
33	.b[PSC_TEMPERATURE] = 0,
34	.R[PSC_TEMPERATURE] = 0,
35
36	.func[0] =
37		PMBUS_HAVE_VIN | PMBUS_HAVE_VOUT | PMBUS_HAVE_PIN |
38		PMBUS_HAVE_TEMP | PMBUS_HAVE_IOUT |
39		PMBUS_HAVE_STATUS_INPUT | PMBUS_HAVE_STATUS_TEMP,
40};
41
42static int mp5023_probe(struct i2c_client *client)
43{
44	return pmbus_do_probe(client, &mp5023_info);
45}
46
47static const struct of_device_id __maybe_unused mp5023_of_match[] = {
48	{ .compatible = "mps,mp5023", },
49	{}
50};
51
52MODULE_DEVICE_TABLE(of, mp5023_of_match);
53
54static struct i2c_driver mp5023_driver = {
55	.driver = {
56		   .name = "mp5023",
57		   .of_match_table = of_match_ptr(mp5023_of_match),
58	},
59	.probe = mp5023_probe,
60};
61
62module_i2c_driver(mp5023_driver);
63
64MODULE_AUTHOR("Howard Chiu <howard.chiu@quantatw.com>");
65MODULE_DESCRIPTION("PMBus driver for MPS MP5023 HSC");
66MODULE_LICENSE("GPL");
67MODULE_IMPORT_NS(PMBUS);
68