xref: /linux/Documentation/hwmon/max20730.rst (revision 2697b79a469b68e3ad3640f55284359c1396278d) 
1.. SPDX-License-Identifier: GPL-2.0-or-later
2
3Kernel driver max20730
4======================
5
6Supported chips:
7
8  * Maxim MAX20710
9
10    Prefix: 'max20710'
11
12    Addresses scanned: -
13
14    Datasheet: https://datasheets.maximintegrated.com/en/ds/MAX20710.pdf
15
16  * Maxim MAX20730
17
18    Prefix: 'max20730'
19
20    Addresses scanned: -
21
22    Datasheet: https://datasheets.maximintegrated.com/en/ds/MAX20730.pdf
23
24  * Maxim MAX20734
25
26    Prefix: 'max20734'
27
28    Addresses scanned: -
29
30    Datasheet: https://datasheets.maximintegrated.com/en/ds/MAX20734.pdf
31
32  * Maxim MAX20743
33
34    Prefix: 'max20743'
35
36    Addresses scanned: -
37
38    Datasheet: https://datasheets.maximintegrated.com/en/ds/MAX20743.pdf
39
40Author: Guenter Roeck <linux@roeck-us.net>
41
42
43Description
44-----------
45
46This driver implements support for Maxim MAX20710, MAX20730, MAX20734, and MAX20743
47Integrated, Step-Down Switching Regulators with PMBus support.
48
49The driver is a client driver to the core PMBus driver.
50Please see Documentation/hwmon/pmbus.rst for details on PMBus client drivers.
51
52
53Usage Notes
54-----------
55
56This driver does not auto-detect devices. You will have to instantiate the
57devices explicitly. Please see Documentation/i2c/instantiating-devices.rst for
58details.
59
60
61Sysfs entries
62-------------
63
64=================== ===== =======================================================
65curr1_crit          RW/RO Critical output current. Please see datasheet for
66                          supported limits. Read-only if the chip is
67                          write protected; read-write otherwise.
68curr1_crit_alarm    RO    Output current critical alarm
69curr1_input         RO    Output current
70curr1_label         RO    'iout1'
71in1_alarm           RO    Input voltage alarm
72in1_input           RO    Input voltage
73in1_label           RO    'vin'
74in2_alarm           RO    Output voltage alarm
75in2_input           RO    Output voltage
76in2_label           RO    'vout1'
77temp1_crit          RW/RO Critical temeperature. Supported values are 130 or 150
78                          degrees C. Read-only if the chip is write protected;
79                          read-write otherwise.
80temp1_crit_alarm    RO    Temperature critical alarm
81temp1_input         RO    Chip temperature
82=================== ===== =======================================================
83