mirror of
https://github.com/Telecominfraproject/OpenCellular.git
synced 2025-12-29 01:50:53 +00:00
d64bb99149
This adds CONFIG_FAN_UPDATE_PERIOD to limit the frequency at which the fan speeds are updated. Short version: the CPU core temp fluctuates rapidly, causing the fans turn off and on annoyingly often (assuming you have good hearing and are in a quiet room). With this CL, we limit the speed changes to only once every N seconds. N should be long enough to be less annoying, yet short enough that the CPU doesn't overheat while we're not looking. BUG=chrome-os-partner:34789 BRANCH=ToT,samus TEST=manual Let it sit quietly, then visit a busy webpage, then let it sit a while. The fan speed should only change every 10 seconds or so, not every second. Change-Id: Id985350394f24d56dc4a1e51af09487ac643285b Signed-off-by: Bill Richardson <wfrichar@chromium.org> Reviewed-on: https://chromium-review.googlesource.com/250501 Reviewed-by: Duncan Laurie <dlaurie@chromium.org>
For an overview of the Embedded Controller firmware, refer to http://www.chromium.org/chromium-os/2014-firmware-summit