hwmon: Add new attributes to sysfs ABI

Add the following attributes to the sysfs ABI.

in[0-*]_average
in[0-*]_lowest
in[0-*]_highest
in[0-*]_reset_history
in_reset_history

curr[1-*]_average
curr[1-*]_lowest
curr[1-*]_highest
curr[1-*]_reset_history
curr_reset_history

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

Documentation/hwmon/sysfs-interface

@@ -139,6 +139,29 @@ in[0-*]_input	Voltage input value.
 		thumb: drivers should report the voltage values at the
 		"pins" of the chip.
 
+in[0-*]_average
+		Average voltage
+		Unit: millivolt
+		RO
+
+in[0-*]_lowest
+		Historical minimum voltage
+		Unit: millivolt
+		RO
+
+in[0-*]_highest
+		Historical maximum voltage
+		Unit: millivolt
+		RO
+
+in[0-*]_reset_history
+		Reset inX_lowest and inX_highest
+		WO
+
+in_reset_history
+		Reset inX_lowest and inX_highest for all sensors
+		WO
+
 in[0-*]_label	Suggested voltage channel label.
 		Text string
 		Should only be created if the driver has hints about what
@@ -407,6 +430,29 @@ curr[1-*]_input	Current input value
 		Unit: milliampere
 		RO
 
+curr[1-*]_average
+		Average current use
+		Unit: milliampere
+		RO
+
+curr[1-*]_lowest
+		Historical minimum current
+		Unit: milliampere
+		RO
+
+curr[1-*]_highest
+		Historical maximum current
+		Unit: milliampere
+		RO
+
+curr[1-*]_reset_history
+		Reset currX_lowest and currX_highest
+		WO
+
+curr_reset_history
+		Reset currX_lowest and currX_highest for all sensors
+		WO
+
 Also see the Alarms section for status flags associated with currents.
 
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