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1Kernel driver lm25066
2=====================
3
4Supported chips:
5
6 * TI LM25056
7
8 Prefix: 'lm25056'
9
10 Addresses scanned: -
11
12 Datasheets:
13
14 https://www.ti.com/lit/gpn/lm25056
15
16 https://www.ti.com/lit/gpn/lm25056a
17
18 * National Semiconductor LM25066
19
20 Prefix: 'lm25066'
21
22 Addresses scanned: -
23
24 Datasheets:
25
26 http://www.national.com/pf/LM/LM25066.html
27
28 http://www.national.com/pf/LM/LM25066A.html
29
30 * National Semiconductor LM5064
31
32 Prefix: 'lm5064'
33
34 Addresses scanned: -
35
36 Datasheet:
37
38 http://www.national.com/pf/LM/LM5064.html
39
40 * National Semiconductor LM5066
41
42 Prefix: 'lm5066'
43
44 Addresses scanned: -
45
46 Datasheet:
47
48 http://www.national.com/pf/LM/LM5066.html
49
50 * Texas Instruments LM5066I
51
52 Prefix: 'lm5066i'
53
54 Addresses scanned: -
55
56 Datasheet:
57
58 https://www.ti.com/product/LM5066I
59
60
61Author: Guenter Roeck <linux@roeck-us.net>
62
63
64Description
65-----------
66
67This driver supports hardware monitoring for National Semiconductor / TI LM25056,
68LM25066, LM5064, and LM5066/LM5066I Power Management, Monitoring,
69Control, and Protection ICs.
70
71The driver is a client driver to the core PMBus driver. Please see
72Documentation/hwmon/pmbus.rst for details on PMBus client drivers.
73
74
75Usage Notes
76-----------
77
78This driver does not auto-detect devices. You will have to instantiate the
79devices explicitly. Please see Documentation/i2c/instantiating-devices.rst for
80details.
81
82The shunt (sense) resistor value can be configured by a device tree property;
83see Documentation/devicetree/bindings/hwmon/pmbus/ti,lm25066.yaml for details.
84
85Platform data support
86---------------------
87
88The driver supports standard PMBus driver platform data.
89
90
91Sysfs entries
92-------------
93
94The following attributes are supported. Limits are read-write; all other
95attributes are read-only.
96
97======================= =======================================================
98in1_label "vin"
99in1_input Measured input voltage.
100in1_average Average measured input voltage.
101in1_min Minimum input voltage.
102in1_max Maximum input voltage.
103in1_min_alarm Input voltage low alarm.
104in1_max_alarm Input voltage high alarm.
105
106in2_label "vmon"
107in2_input Measured voltage on VAUX pin
108in2_min Minimum VAUX voltage (LM25056 only).
109in2_max Maximum VAUX voltage (LM25056 only).
110in2_min_alarm VAUX voltage low alarm (LM25056 only).
111in2_max_alarm VAUX voltage high alarm (LM25056 only).
112
113in3_label "vout1"
114 Not supported on LM25056.
115in3_input Measured output voltage.
116in3_average Average measured output voltage.
117in3_min Minimum output voltage.
118in3_min_alarm Output voltage low alarm.
119
120curr1_label "iin"
121curr1_input Measured input current.
122curr1_average Average measured input current.
123curr1_max Maximum input current.
124curr1_max_alarm Input current high alarm.
125
126power1_label "pin"
127power1_input Measured input power.
128power1_average Average measured input power.
129power1_max Maximum input power limit.
130power1_alarm Input power alarm
131power1_input_highest Historical maximum power.
132power1_reset_history Write any value to reset maximum power history.
133
134temp1_input Measured temperature.
135temp1_max Maximum temperature.
136temp1_crit Critical high temperature.
137temp1_max_alarm Chip temperature high alarm.
138temp1_crit_alarm Chip temperature critical high alarm.
139======================= =======================================================
1Kernel driver lm25066
2=====================
3
4Supported chips:
5
6 * TI LM25056
7
8 Prefix: 'lm25056'
9
10 Addresses scanned: -
11
12 Datasheets:
13
14 https://www.ti.com/lit/gpn/lm25056
15
16 https://www.ti.com/lit/gpn/lm25056a
17
18 * National Semiconductor LM25066
19
20 Prefix: 'lm25066'
21
22 Addresses scanned: -
23
24 Datasheets:
25
26 http://www.national.com/pf/LM/LM25066.html
27
28 http://www.national.com/pf/LM/LM25066A.html
29
30 * National Semiconductor LM5064
31
32 Prefix: 'lm5064'
33
34 Addresses scanned: -
35
36 Datasheet:
37
38 http://www.national.com/pf/LM/LM5064.html
39
40 * National Semiconductor LM5066
41
42 Prefix: 'lm5066'
43
44 Addresses scanned: -
45
46 Datasheet:
47
48 http://www.national.com/pf/LM/LM5066.html
49
50 * Texas Instruments LM5066I
51
52 Prefix: 'lm5066i'
53
54 Addresses scanned: -
55
56 Datasheet:
57
58 https://www.ti.com/product/LM5066I
59
60
61Author: Guenter Roeck <linux@roeck-us.net>
62
63
64Description
65-----------
66
67This driver supports hardware monitoring for National Semiconductor / TI LM25056,
68LM25066, LM5064, and LM5066/LM5066I Power Management, Monitoring,
69Control, and Protection ICs.
70
71The driver is a client driver to the core PMBus driver. Please see
72Documentation/hwmon/pmbus.rst for details on PMBus client drivers.
73
74
75Usage Notes
76-----------
77
78This driver does not auto-detect devices. You will have to instantiate the
79devices explicitly. Please see Documentation/i2c/instantiating-devices.rst for
80details.
81
82The shunt (sense) resistor value can be configured by a device tree property;
83see Documentation/devicetree/bindings/hwmon/pmbus/ti,lm25066.yaml for details.
84
85Platform data support
86---------------------
87
88The driver supports standard PMBus driver platform data.
89
90
91Sysfs entries
92-------------
93
94The following attributes are supported. Limits are read-write; all other
95attributes are read-only.
96
97======================= =======================================================
98in1_label "vin"
99in1_input Measured input voltage.
100in1_average Average measured input voltage.
101in1_min Minimum input voltage.
102in1_max Maximum input voltage.
103in1_min_alarm Input voltage low alarm.
104in1_max_alarm Input voltage high alarm.
105
106in2_label "vmon"
107in2_input Measured voltage on VAUX pin
108in2_min Minimum VAUX voltage (LM25056 only).
109in2_max Maximum VAUX voltage (LM25056 only).
110in2_min_alarm VAUX voltage low alarm (LM25056 only).
111in2_max_alarm VAUX voltage high alarm (LM25056 only).
112
113in3_label "vout1"
114 Not supported on LM25056.
115in3_input Measured output voltage.
116in3_average Average measured output voltage.
117in3_min Minimum output voltage.
118in3_min_alarm Output voltage low alarm.
119
120curr1_label "iin"
121curr1_input Measured input current.
122curr1_average Average measured input current.
123curr1_max Maximum input current.
124curr1_max_alarm Input current high alarm.
125
126power1_label "pin"
127power1_input Measured input power.
128power1_average Average measured input power.
129power1_max Maximum input power limit.
130power1_alarm Input power alarm
131power1_input_highest Historical maximum power.
132power1_reset_history Write any value to reset maximum power history.
133
134temp1_input Measured temperature.
135temp1_max Maximum temperature.
136temp1_crit Critical high temperature.
137temp1_max_alarm Chip temperature high alarm.
138temp1_crit_alarm Chip temperature critical high alarm.
139======================= =======================================================