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author | Zhang Rui <rui.zhang@intel.com> | 2016-03-18 10:03:24 +0800 |
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committer | Zhang Rui <rui.zhang@intel.com> | 2016-03-18 14:10:57 +0800 |
commit | 81ad4276b505e987dd8ebbdf63605f92cd172b52 (patch) | |
tree | c98a07624c3c7df9927183f0d9876dc8a38af16d /kernel/trace/trace_events_filter.c | |
parent | b82ddd48e8bc01cd7bfc8511dc31778c5c4ebe6e (diff) | |
download | op-kernel-dev-81ad4276b505e987dd8ebbdf63605f92cd172b52.zip op-kernel-dev-81ad4276b505e987dd8ebbdf63605f92cd172b52.tar.gz |
Thermal: Ignore invalid trip points
In some cases, platform thermal driver may report invalid trip points,
thermal core should not take any action for these trip points.
This fixed a regression that bogus trip point starts to screw up thermal
control on some Lenovo laptops, after
commit bb431ba26c5cd0a17c941ca6c3a195a3a6d5d461
Author: Zhang Rui <rui.zhang@intel.com>
Date: Fri Oct 30 16:31:47 2015 +0800
Thermal: initialize thermal zone device correctly
After thermal zone device registered, as we have not read any
temperature before, thus tz->temperature should not be 0,
which actually means 0C, and thermal trend is not available.
In this case, we need specially handling for the first
thermal_zone_device_update().
Both thermal core framework and step_wise governor is
enhanced to handle this. And since the step_wise governor
is the only one that uses trends, so it's the only thermal
governor that needs to be updated.
Tested-by: Manuel Krause <manuelkrause@netscape.net>
Tested-by: szegad <szegadlo@poczta.onet.pl>
Tested-by: prash <prash.n.rao@gmail.com>
Tested-by: amish <ammdispose-arch@yahoo.com>
Tested-by: Matthias <morpheusxyz123@yahoo.de>
Reviewed-by: Javi Merino <javi.merino@arm.com>
Signed-off-by: Zhang Rui <rui.zhang@intel.com>
Signed-off-by: Chen Yu <yu.c.chen@intel.com>
CC: <stable@vger.kernel.org> #3.18+
Link: https://bugzilla.redhat.com/show_bug.cgi?id=1317190
Link: https://bugzilla.kernel.org/show_bug.cgi?id=114551
Signed-off-by: Zhang Rui <rui.zhang@intel.com>
Diffstat (limited to 'kernel/trace/trace_events_filter.c')
0 files changed, 0 insertions, 0 deletions