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hwmon: (adt7475) temperature smoothing

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When enabled temperature smoothing allows ramping the fan speed over a
configurable period of time instead of jumping to the new speed
instantaneously.

Signed-off-by: Chris Packham <chris.packham@alliedtelesis.co.nz>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
This commit is contained in:
Chris Packham
2017-05-15 13:30:28 +12:00
committed by Guenter Roeck
parent 3490c92a09
commit 8f05bcc33e
2 changed files with 95 additions and 0 deletions
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Documentation/hwmon/adt7475
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@@ -114,6 +114,10 @@ minimum (i.e. auto_point1_pwm). This behaviour can be configured using the
pwm[1-*]_stall_disable sysfs attribute. A value of 0 means the fans will shut
off. A value of 1 means the fans will run at auto_point1_pwm.
The responsiveness of the ADT747x to temperature changes can be configured.
This allows smoothing of the fan speed transition. To set the transition time
set the value in ms in the temp[1-*]_smoothing sysfs attribute.
Notes
-----