hwmon: (w83627ehf) Improve support for W83667HG-B
Add support for 4th temperature sensor on W83677HG-B.
Display temperature labels on W83677HG-B to report temperature sources.
Signed-off-by: Guenter Roeck <guenter.roeck@ericsson.com>
Acked-by: Ian Dobson <i.dobson@planet-ian.com>
diff --git a/Documentation/hwmon/w83627ehf b/Documentation/hwmon/w83627ehf
index 13d5561..0643019 100644
--- a/Documentation/hwmon/w83627ehf
+++ b/Documentation/hwmon/w83627ehf
@@ -39,16 +39,21 @@
W83627DHG, W83627DHG-P, W83667HG and W83667HG-B super I/O chips.
We will refer to them collectively as Winbond chips.
-The chips implement three temperature sensors, five fan rotation
-speed sensors, ten analog voltage sensors (only nine for the 627DHG), one
-VID (6 pins for the 627EHF/EHG, 8 pins for the 627DHG and 667HG), alarms
-with beep warnings (control unimplemented), and some automatic fan
+The chips implement three temperature sensors (up to four for 667HG-B),
+five fan rotation speed sensors, ten analog voltage sensors (only nine for the
+627DHG), one VID (6 pins for the 627EHF/EHG, 8 pins for the 627DHG and 667HG),
+alarms with beep warnings (control unimplemented), and some automatic fan
regulation strategies (plus manual fan control mode).
+The temperature sensor sources on W82677HG-B are configurable. temp4 is only
+reported if its temperature source differs from the temperature sources of the
+other three temperature sensors. The configured source for each of the
+temperature sensors is reported in tempX_label.
+
Temperatures are measured in degrees Celsius and measurement resolution is 1
-degC for temp1 and 0.5 degC for temp2 and temp3. An alarm is triggered when
-the temperature gets higher than high limit; it stays on until the temperature
-falls below the hysteresis value.
+degC for temp1 and temp4, and 0.5 degC for temp2 and temp3. An alarm is
+triggered when the temperature gets higher than high limit; it stays on until
+the temperature falls below the hysteresis value.
Fan rotation speeds are reported in RPM (rotations per minute). An alarm is
triggered if the rotation speed has dropped below a programmable limit. Fan