thermal: step_wise: cdev only needs update on a new target state
authorShawn Guo <shawn.guo@linaro.org>
Mon, 17 Jun 2013 13:24:23 +0000 (21:24 +0800)
committerZhang Rui <rui.zhang@intel.com>
Thu, 15 Aug 2013 07:48:59 +0000 (15:48 +0800)
commit178c2490b99f898efc06d1ad75cadc84f13021a6
tree07d2ccb2548315cb969438b48db4f1af5fb4393d
parent044d5c26da262fa433dacbe1c6962459050d6b06
thermal: step_wise: cdev only needs update on a new target state

The cooling device only needs update on a new target state.  Since we
already check old target in thermal_zone_trip_update(), we can do one
more check to see if it's a new target state.  If not, we can reasonably
save some uncecesary code execution.

Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
Acked-by: Eduardo Valentin <eduardo.valentin@ti.com>
Signed-off-by: Zhang Rui <rui.zhang@intel.com>
drivers/thermal/step_wise.c