linux/drivers/thermal/step_wise.c
Jean Delvare 912838a62b thermal: step_wise: Revert optimization
Commit 178c2490b9 ("thermal: step_wise:
cdev only needs update on a new target state") broke driver acerhdf.
That driver abused the step_wise thermal governor until the bang_bang
governor was available, and the optimization broke this usage model.

Kernels v3.12 to v3.18 are affected. In v3.19 the acerhdf driver was
switched to the bang_bang governor and that solved the problem.

For kernels v3.12 to v3.17, the bang_bang governor isn't available
yet so the easiest fix is to revert the optimization.

Signed-off-by: Jean Delvare <jdelvare@suse.de>
Reported-by: Dieter Jurzitza (https://bugzilla.opensuse.org/show_bug.cgi?id=925961)
Tested-by: Peter Feuerer <peter@piie.net>
Tested-by: Dieter Jurzitza
Signed-off-by: Luis Henriques <luis.henriques@canonical.com>
2015-06-12 12:55:03 +01:00

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