hwmon: (pmbus) Add client driver for LM25066, LM5064, and LM5066

PMBus client driver supporting National Semiconductor LM25066, LM5064, and LM5066.

Signed-off-by: Guenter Roeck <guenter.roeck@ericsson.com>
Reviewed-by: Robert Coulson <robert.coulson@ericsson.com>

1 files changed, 90 insertions, 0 deletions

diff --git a/Documentation/hwmon/lm25066 b/Documentation/hwmon/lm25066
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+Kernel driver max8688
+=====================
+
+Supported chips:
+  * National Semiconductor LM25066
+    Prefix: 'lm25066'
+    Addresses scanned: -
+    Datasheets:
+        http://www.national.com/pf/LM/LM25066.html
+        http://www.national.com/pf/LM/LM25066A.html
+  * National Semiconductor LM5064
+    Prefix: 'lm5064'
+    Addresses scanned: -
+    Datasheet:
+        http://www.national.com/pf/LM/LM5064.html
+  * National Semiconductor LM5066
+    Prefix: 'lm5066'
+    Addresses scanned: -
+    Datasheet:
+        http://www.national.com/pf/LM/LM5066.html
+
+Author: Guenter Roeck <guenter.roeck@ericsson.com>
+
+
+Description
+-----------
+
+This driver supports hardware montoring for National Semiconductor LM25066,
+LM5064, and LM5064 Power Management, Monitoring, Control, and Protection ICs.
+
+The driver is a client driver to the core PMBus driver. Please see
+Documentation/hwmon/pmbus for details on PMBus client drivers.
+
+
+Usage Notes
+-----------
+
+This driver does not auto-detect devices. You will have to instantiate the
+devices explicitly. Please see Documentation/i2c/instantiating-devices for
+details.
+
+
+Platform data support
+---------------------
+
+The driver supports standard PMBus driver platform data.
+
+
+Sysfs entries
+-------------
+
+The following attributes are supported. Limits are read-write; all other
+attributes are read-only.
+
+in1_label               "vin"
+in1_input               Measured input voltage.
+in1_average             Average measured input voltage.
+in1_min                 Minimum input voltage.
+in1_max                 Maximum input voltage.
+in1_min_alarm           Input voltage low alarm.
+in1_max_alarm           Input voltage high alarm.
+
+in2_label               "vout1"
+in2_input               Measured output voltage.
+in2_average             Average measured output voltage.
+in2_min                 Minimum output voltage.
+in2_min_alarm           Output voltage low alarm.
+
+in3_label               "vout2"
+in3_input               Measured voltage on vaux pin
+
+curr1_label             "iin"
+curr1_input             Measured input current.
+curr1_average           Average measured input current.
+curr1_max               Maximum input current.
+curr1_max_alarm         Input current high alarm.
+
+power1_label            "pin"
+power1_input            Measured input power.
+power1_average          Average measured input power.
+power1_max              Maximum input power limit.
+power1_alarm            Input power alarm
+power1_input_highest    Historical maximum power.
+power1_reset_history    Write any value to reset maximum power history.
+
+temp1_input             Measured temperature.
+temp1_max               Maximum temperature.
+temp1_crit              Critical high temperature.
+temp1_max_alarm         Chip temperature high alarm.
+temp1_crit_alarm        Chip temperature critical high alarm.