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authorGuenter Roeck <linux@roeck-us.net>2012-02-24 03:40:53 -0800
committerGuenter Roeck <guenter.roeck@ericsson.com>2012-03-18 18:27:52 -0700
commit927112696654f4c96a85aa8a494866cbc6ccfbe6 (patch)
tree0c27c60740018af7640627663b3f0f19339ae3b2 /Documentation/hwmon
parent590defe59ef9596dcd892d2d8395d730c510323d (diff)
downloadlinux-linaro-stable-927112696654f4c96a85aa8a494866cbc6ccfbe6.tar.gz
hwmon: (adm1275) Add support for ADM1075
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Diffstat (limited to 'Documentation/hwmon')
-rw-r--r--Documentation/hwmon/adm127530
1 files changed, 23 insertions, 7 deletions
diff --git a/Documentation/hwmon/adm1275 b/Documentation/hwmon/adm1275
index ab70d96d2dfd..535ad23ea704 100644
--- a/Documentation/hwmon/adm1275
+++ b/Documentation/hwmon/adm1275
@@ -2,6 +2,10 @@ Kernel driver adm1275
=====================
Supported chips:
+ * Analog Devices ADM1075
+ Prefix: 'adm1075'
+ Addresses scanned: -
+ Datasheet: www.analog.com/static/imported-files/data_sheets/ADM1075.pdf
* Analog Devices ADM1275
Prefix: 'adm1275'
Addresses scanned: -
@@ -17,13 +21,13 @@ Author: Guenter Roeck <guenter.roeck@ericsson.com>
Description
-----------
-This driver supports hardware montoring for Analog Devices ADM1275 and ADM1276
-Hot-Swap Controller and Digital Power Monitor.
+This driver supports hardware montoring for Analog Devices ADM1075, ADM1275,
+and ADM1276 Hot-Swap Controller and Digital Power Monitor.
-ADM1275 and ADM1276 are hot-swap controllers that allow a circuit board to be
-removed from or inserted into a live backplane. They also feature current and
-voltage readback via an integrated 12-bit analog-to-digital converter (ADC),
-accessed using a PMBus interface.
+ADM1075, ADM1275, and ADM1276 are hot-swap controllers that allow a circuit
+board to be removed from or inserted into a live backplane. They also feature
+current and voltage readback via an integrated 12-bit analog-to-digital
+converter (ADC), accessed using a PMBus interface.
The driver is a client driver to the core PMBus driver. Please see
Documentation/hwmon/pmbus for details on PMBus client drivers.
@@ -36,6 +40,10 @@ This driver does not auto-detect devices. You will have to instantiate the
devices explicitly. Please see Documentation/i2c/instantiating-devices for
details.
+The ADM1075, unlike many other PMBus devices, does not support internal voltage
+or current scaling. Reported voltages, currents, and power are raw measurements,
+and will typically have to be scaled.
+
Platform data support
---------------------
@@ -51,7 +59,8 @@ The following attributes are supported. Limits are read-write, history reset
attributes are write-only, all other attributes are read-only.
in1_label "vin1" or "vout1" depending on chip variant and
- configuration.
+ configuration. On ADM1075, vout1 reports the voltage on
+ the VAUX pin.
in1_input Measured voltage.
in1_min Minumum Voltage.
in1_max Maximum voltage.
@@ -74,3 +83,10 @@ curr1_crit Critical maximum current. Depending on the chip
curr1_crit_alarm Critical current high alarm.
curr1_highest Historical maximum current.
curr1_reset_history Write any value to reset history.
+
+power1_label "pin1"
+power1_input Input power.
+power1_reset_history Write any value to reset history.
+
+ Power attributes are supported on ADM1075 and ADM1276
+ only.