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authorGuenter Roeck <guenter.roeck@ericsson.com>2011-03-17 16:16:01 -0400
committerGuenter Roeck <guenter.roeck@ericsson.com>2011-05-19 11:19:41 -0400
commit83f7649c52871d4b0799c209c364374b682fa4a8 (patch)
treee39a462b73225034026277767fa45de9832a7975 /Documentation/hwmon
parent0c0a0615163e025eb978547969467012529e01d5 (diff)
hwmon: (pmbus) Add support for Analog Devices ADM1275
Add support for Analog Devices ADM1275 Hot-Swap Controller and Digital Power Monitor Signed-off-by: Guenter Roeck <guenter.roeck@ericsson.com> Reviewed-by: Tom Grennan <tom.grennan@ericsson.com>
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1Kernel driver adm1275
2=====================
3
4Supported chips:
5 * Analog Devices ADM1275
6 Prefix: 'adm1275'
7 Addresses scanned: -
8 Datasheet: www.analog.com/static/imported-files/data_sheets/ADM1275.pdf
9
10Author: Guenter Roeck <guenter.roeck@ericsson.com>
11
12
13Description
14-----------
15
16This driver supports hardware montoring for Analog Devices ADM1275 Hot-Swap
17Controller and Digital Power Monitor.
18
19The ADM1275 is a hot-swap controller that allows a circuit board to be removed
20from or inserted into a live backplane. It also features current and voltage
21readback via an integrated 12-bit analog-to-digital converter (ADC), accessed
22using a PMBus. interface.
23
24The driver is a client driver to the core PMBus driver. Please see
25Documentation/hwmon/pmbus for details on PMBus client drivers.
26
27
28Usage Notes
29-----------
30
31This driver does not auto-detect devices. You will have to instantiate the
32devices explicitly. Please see Documentation/i2c/instantiating-devices for
33details.
34
35
36Platform data support
37---------------------
38
39The driver supports standard PMBus driver platform data. Please see
40Documentation/hwmon/pmbus for details.
41
42
43Sysfs entries
44-------------
45
46The following attributes are supported. Limits are read-write; all other
47attributes are read-only.
48
49in1_label "vin1" or "vout1" depending on chip variant and
50 configuration.
51in1_input Measured voltage. From READ_VOUT register.
52in1_min Minumum Voltage. From VOUT_UV_WARN_LIMIT register.
53in1_max Maximum voltage. From VOUT_OV_WARN_LIMIT register.
54in1_min_alarm Voltage low alarm. From VOLTAGE_UV_WARNING status.
55in1_max_alarm Voltage high alarm. From VOLTAGE_OV_WARNING status.
56
57curr1_label "iout1"
58curr1_input Measured current. From READ_IOUT register.
59curr1_max Maximum current. From IOUT_OC_WARN_LIMIT register.
60curr1_max_alarm Current high alarm. From IOUT_OC_WARN_LIMIT register.