1// SPDX-License-Identifier: GPL-2.0+
2/*
3 * Hardware monitoring driver for the Infineon IRPS5401M PMIC.
4 *
5 * Copyright (c) 2019 SED Systems, a division of Calian Ltd.
6 *
7 * The device supports VOUT_PEAK, IOUT_PEAK, and TEMPERATURE_PEAK, however
8 * this driver does not currently support them.
9 */
10
11#include <linux/err.h>
12#include <linux/i2c.h>
13#include <linux/init.h>
14#include <linux/kernel.h>
15#include <linux/module.h>
16#include "pmbus.h"
17
18#define IRPS5401_SW_FUNC (PMBUS_HAVE_VIN | PMBUS_HAVE_IIN | \
19 PMBUS_HAVE_STATUS_INPUT | \
20 PMBUS_HAVE_VOUT | PMBUS_HAVE_STATUS_VOUT | \
21 PMBUS_HAVE_IOUT | PMBUS_HAVE_STATUS_IOUT | \
22 PMBUS_HAVE_PIN | PMBUS_HAVE_POUT | \
23 PMBUS_HAVE_TEMP | PMBUS_HAVE_STATUS_TEMP)
24
25#define IRPS5401_LDO_FUNC (PMBUS_HAVE_VIN | \
26 PMBUS_HAVE_STATUS_INPUT | \
27 PMBUS_HAVE_VOUT | PMBUS_HAVE_STATUS_VOUT | \
28 PMBUS_HAVE_IOUT | PMBUS_HAVE_STATUS_IOUT | \
29 PMBUS_HAVE_PIN | PMBUS_HAVE_POUT | \
30 PMBUS_HAVE_TEMP | PMBUS_HAVE_STATUS_TEMP)
31
32static struct pmbus_driver_info irps5401_info = {
33 .pages = 5,
34 .func[0] = IRPS5401_SW_FUNC,
35 .func[1] = IRPS5401_SW_FUNC,
36 .func[2] = IRPS5401_SW_FUNC,
37 .func[3] = IRPS5401_SW_FUNC,
38 .func[4] = IRPS5401_LDO_FUNC,
39};
40
41static int irps5401_probe(struct i2c_client *client)
42{
43 return pmbus_do_probe(client, info: &irps5401_info);
44}
45
46static const struct i2c_device_id irps5401_id[] = {
47 {"irps5401"},
48 {}
49};
50
51MODULE_DEVICE_TABLE(i2c, irps5401_id);
52
53static struct i2c_driver irps5401_driver = {
54 .driver = {
55 .name = "irps5401",
56 },
57 .probe = irps5401_probe,
58 .id_table = irps5401_id,
59};
60
61module_i2c_driver(irps5401_driver);
62
63MODULE_AUTHOR("Robert Hancock");
64MODULE_DESCRIPTION("PMBus driver for Infineon IRPS5401");
65MODULE_LICENSE("GPL");
66MODULE_IMPORT_NS("PMBUS");
67

source code of linux/drivers/hwmon/pmbus/irps5401.c