Merge tag 'stable/for-linus-3.13-rc2-tag' of git://git.kernel.org/pub/scm/linux/kerne...
[firefly-linux-kernel-4.4.55.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   * TI LM25063
12     Prefix: 'lm25063'
13     Addresses scanned: -
14     Datasheet:
15         To be announced
16   * National Semiconductor LM25066
17     Prefix: 'lm25066'
18     Addresses scanned: -
19     Datasheets:
20         http://www.national.com/pf/LM/LM25066.html
21         http://www.national.com/pf/LM/LM25066A.html
22   * National Semiconductor LM5064
23     Prefix: 'lm5064'
24     Addresses scanned: -
25     Datasheet:
26         http://www.national.com/pf/LM/LM5064.html
27   * National Semiconductor LM5066
28     Prefix: 'lm5066'
29     Addresses scanned: -
30     Datasheet:
31         http://www.national.com/pf/LM/LM5066.html
32
33 Author: Guenter Roeck <linux@roeck-us.net>
34
35
36 Description
37 -----------
38
39 This driver supports hardware montoring for National Semiconductor / TI LM25056,
40 LM25063, LM25066, LM5064, and LM5066 Power Management, Monitoring, Control, and
41 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_crit                Critical high input voltage (LM25063 only).
73 in1_lcrit               Critical low input voltage (LM25063 only).
74 in1_min_alarm           Input voltage low alarm.
75 in1_max_alarm           Input voltage high alarm.
76 in1_lcrit_alarm         Input voltage critical low alarm (LM25063 only).
77 in1_crit_alarm          Input voltage critical high alarm. (LM25063 only).
78
79 in2_label               "vmon"
80 in2_input               Measured voltage on VAUX pin
81 in2_min                 Minimum VAUX voltage (LM25056 only).
82 in2_max                 Maximum VAUX voltage (LM25056 only).
83 in2_min_alarm           VAUX voltage low alarm (LM25056 only).
84 in2_max_alarm           VAUX voltage high alarm (LM25056 only).
85
86 in3_label               "vout1"
87                         Not supported on LM25056.
88 in3_input               Measured output voltage.
89 in3_average             Average measured output voltage.
90 in3_min                 Minimum output voltage.
91 in3_min_alarm           Output voltage low alarm.
92 in3_highest             Historical minimum output voltage (LM25063 only).
93 in3_lowest              Historical maximum output voltage (LM25063 only).
94
95 curr1_label             "iin"
96 curr1_input             Measured input current.
97 curr1_average           Average measured input current.
98 curr1_max               Maximum input current.
99 curr1_crit              Critical input current (LM25063 only).
100 curr1_max_alarm         Input current high alarm.
101 curr1_crit_alarm        Input current critical high alarm (LM25063 only).
102
103 power1_label            "pin"
104 power1_input            Measured input power.
105 power1_average          Average measured input power.
106 power1_max              Maximum input power limit.
107 power1_alarm            Input power alarm
108 power1_input_highest    Historical maximum power.
109 power1_reset_history    Write any value to reset maximum power history.
110
111 power2_label            "pout". LM25063 only.
112 power2_input            Measured output power.
113 power2_max              Maximum output power limit.
114 power2_crit             Critical output power limit.
115
116 temp1_input             Measured temperature.
117 temp1_max               Maximum temperature.
118 temp1_crit              Critical high temperature.
119 temp1_max_alarm         Chip temperature high alarm.
120 temp1_crit_alarm        Chip temperature critical high alarm.