watchdog: Add support for ux500_wdt watchdog

[firefly-linux-kernel-4.4.55.git] / Documentation / hwmon / pc87427

diff --git a/Documentation/hwmon/pc87427 b/Documentation/hwmon/pc87427
index 3282bf39d67d8f2a28cd18788476e1f0b95e834b..8fdd08c9e48b5ceac48b100ee4cedbdf78fcc242 100644 (file)
--- a/Documentation/hwmon/pc87427
+++ b/Documentation/hwmon/pc87427
@@ -18,7 +18,8 @@ Description
 
 The National Semiconductor Super I/O chip includes complete hardware
 monitoring capabilities. It can monitor up to 18 voltages, 8 fans and
 
 The National Semiconductor Super I/O chip includes complete hardware
 monitoring capabilities. It can monitor up to 18 voltages, 8 fans and

-6 temperature sensors. Only the fans are supported at the moment.
+6 temperature sensors. Only the fans and temperatures are supported at
+the moment, voltages aren't.

 
 This chip also has fan controlling features (up to 4 PWM outputs),
 which are partly supported by this driver.
 
 This chip also has fan controlling features (up to 4 PWM outputs),
 which are partly supported by this driver.


@@ -45,3 +46,14 @@ Fan speed can be controlled by PWM outputs. There are 4 possible modes:
 always off, always on, manual and automatic. The latter isn't supported
 by the driver: you can only return to that mode if it was the original
 setting, and the configuration interface is missing.
 always off, always on, manual and automatic. The latter isn't supported
 by the driver: you can only return to that mode if it was the original
 setting, and the configuration interface is missing.

+
+
+Temperature Monitoring
+----------------------
+
+The PC87427 relies on external sensors (following the SensorPath
+standard), so the resolution and range depend on the type of sensor
+connected. The integer part can be 8-bit or 9-bit, and can be signed or
+not. I couldn't find a way to figure out the external sensor data
+temperature format, so user-space adjustment (typically by a factor 2)
+may be required.