Merge tag 'bitmain-soc-5.2' of git://git.kernel.org/pub/scm/linux/kernel/git/mani...
[sfrench/cifs-2.6.git] / Documentation / hwmon / lm25066
1 Kernel driver lm25066
2 =====================
3
4 Supported chips:
5   * TI LM25056
6     Prefix: 'lm25056'
7     Addresses scanned: -
8     Datasheets:
9         http://www.ti.com/lit/gpn/lm25056
10         http://www.ti.com/lit/gpn/lm25056a
11   * National Semiconductor LM25066
12     Prefix: 'lm25066'
13     Addresses scanned: -
14     Datasheets:
15         http://www.national.com/pf/LM/LM25066.html
16         http://www.national.com/pf/LM/LM25066A.html
17   * National Semiconductor LM5064
18     Prefix: 'lm5064'
19     Addresses scanned: -
20     Datasheet:
21         http://www.national.com/pf/LM/LM5064.html
22   * National Semiconductor LM5066
23     Prefix: 'lm5066'
24     Addresses scanned: -
25     Datasheet:
26         http://www.national.com/pf/LM/LM5066.html
27   * Texas Instruments LM5066I
28     Prefix: 'lm5066i'
29     Addresses scanned: -
30         Datasheet:
31     http://www.ti.com/product/LM5066I
32
33 Author: Guenter Roeck <linux@roeck-us.net>
34
35
36 Description
37 -----------
38
39 This driver supports hardware monitoring for National Semiconductor / TI LM25056,
40 LM25066, LM5064, and LM5066/LM5066I Power Management, Monitoring,
41 Control, and Protection ICs.
42
43 The driver is a client driver to the core PMBus driver. Please see
44 Documentation/hwmon/pmbus for details on PMBus client drivers.
45
46
47 Usage Notes
48 -----------
49
50 This driver does not auto-detect devices. You will have to instantiate the
51 devices explicitly. Please see Documentation/i2c/instantiating-devices for
52 details.
53
54
55 Platform data support
56 ---------------------
57
58 The driver supports standard PMBus driver platform data.
59
60
61 Sysfs entries
62 -------------
63
64 The following attributes are supported. Limits are read-write; all other
65 attributes are read-only.
66
67 in1_label               "vin"
68 in1_input               Measured input voltage.
69 in1_average             Average measured input voltage.
70 in1_min                 Minimum input voltage.
71 in1_max                 Maximum input voltage.
72 in1_min_alarm           Input voltage low alarm.
73 in1_max_alarm           Input voltage high alarm.
74
75 in2_label               "vmon"
76 in2_input               Measured voltage on VAUX pin
77 in2_min                 Minimum VAUX voltage (LM25056 only).
78 in2_max                 Maximum VAUX voltage (LM25056 only).
79 in2_min_alarm           VAUX voltage low alarm (LM25056 only).
80 in2_max_alarm           VAUX voltage high alarm (LM25056 only).
81
82 in3_label               "vout1"
83                         Not supported on LM25056.
84 in3_input               Measured output voltage.
85 in3_average             Average measured output voltage.
86 in3_min                 Minimum output voltage.
87 in3_min_alarm           Output voltage low alarm.
88
89 curr1_label             "iin"
90 curr1_input             Measured input current.
91 curr1_average           Average measured input current.
92 curr1_max               Maximum input current.
93 curr1_max_alarm         Input current high alarm.
94
95 power1_label            "pin"
96 power1_input            Measured input power.
97 power1_average          Average measured input power.
98 power1_max              Maximum input power limit.
99 power1_alarm            Input power alarm
100 power1_input_highest    Historical maximum power.
101 power1_reset_history    Write any value to reset maximum power history.
102
103 temp1_input             Measured temperature.
104 temp1_max               Maximum temperature.
105 temp1_crit              Critical high temperature.
106 temp1_max_alarm         Chip temperature high alarm.
107 temp1_crit_alarm        Chip temperature critical high alarm.