xref: /linux/Documentation/hwmon/xdpe152c4.rst (revision 3c4fc7bf4c9e66fe71abcbf93f62f4ddb89b7f15) 
1.. SPDX-License-Identifier: GPL-2.0
2
3Kernel driver xdpe152
4=====================
5
6Supported chips:
7
8  * Infineon XDPE152C4
9
10    Prefix: 'xdpe152c4'
11
12  * Infineon XDPE15284
13
14    Prefix: 'xdpe15284'
15
16Authors:
17
18    Greg Schwendimann <greg.schwendimann@infineon.com>
19
20Description
21-----------
22
23This driver implements support for Infineon Digital Multi-phase Controller
24XDPE152C4 and XDPE15284 dual loop voltage regulators.
25The devices are compliant with:
26
27- Intel VR13, VR13HC and VR14 rev 1.86
28  converter specification.
29- Intel SVID rev 1.93. protocol.
30- PMBus rev 1.3.1 interface.
31
32Devices support linear format for reading input and output voltage, input
33and output current, input and output power and temperature.
34
35Devices support two pages for telemetry.
36
37The driver provides for current: input, maximum and critical thresholds
38and maximum and critical alarms. Low Critical thresholds and Low critical alarm are
39supported only for current output.
40The driver exports the following attributes for via the sysfs files, where
41indexes 1, 2 are for "iin" and 3, 4 for "iout":
42
43**curr[1-4]_crit**
44
45**curr[1-4]_crit_alarm**
46
47**curr[1-4]_input**
48
49**curr[1-4]_label**
50
51**curr[1-4]_max**
52
53**curr[1-4]_max_alarm**
54
55**curr[3-4]_lcrit**
56
57**curr[3-4]_lcrit_alarm**
58
59**curr[3-4]_rated_max**
60
61The driver provides for voltage: input, critical and low critical thresholds
62and critical and low critical alarms.
63The driver exports the following attributes for via the sysfs files, where
64indexes 1, 2 are for "vin" and 3, 4 for "vout":
65
66**in[1-4]_min**
67
68**in[1-4]_crit**
69
70**in[1-4_crit_alarm**
71
72**in[1-4]_input**
73
74**in[1-4]_label**
75
76**in[1-4]_max**
77
78**in[1-4]_max_alarm**
79
80**in[1-4]_min**
81
82**in[1-4]_min_alarm**
83
84**in[3-4]_lcrit**
85
86**in[3-4]_lcrit_alarm**
87
88**in[3-4]_rated_max**
89
90**in[3-4]_rated_min**
91
92The driver provides for power: input and alarms.
93The driver exports the following attributes for via the sysfs files, where
94indexes 1, 2 are for "pin" and 3, 4 for "pout":
95
96**power[1-2]_alarm**
97
98**power[1-4]_input**
99
100**power[1-4]_label**
101
102**power[1-4]_max**
103
104**power[1-4]_rated_max**
105
106The driver provides for temperature: input, maximum and critical thresholds
107and maximum and critical alarms.
108The driver exports the following attributes for via the sysfs files:
109
110**temp[1-2]_crit**
111
112**temp[1-2]_crit_alarm**
113
114**temp[1-2]_input**
115
116**temp[1-2]_max**
117
118**temp[1-2]_max_alarm**
119