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ARM: etm: Power down etm(s) when tracing is not enabled
authorArve Hjønnevåg <arve@android.com>
Thu, 24 Feb 2011 00:51:58 +0000 (16:51 -0800)
committerLothar Waßmann <LW@KARO-electronics.de>
Fri, 24 May 2013 06:35:28 +0000 (08:35 +0200)
commitd9de1882d2861fd05a85014d89142ad3d2541a22
tree623f0e8e8a8f0f344d9b6943ea44f680fb6d68dbtree | snapshot
parent34f29de35fa07cae69111de89b40fe0fc424952fcommit | diff
ARM: etm: Power down etm(s) when tracing is not enabled

Without this change a saw an 18% increase in idle power consumption
on one deivce when trace support is compiled into the kernel. Now
I see the same increase only when tracing.

Change-Id: I21bb5ecf1b7d29ce3790ceeb5323409cc22d5a3b
Signed-off-by: Arve Hjønnevåg <arve@android.com>
arch/arm/kernel/etm.c diff | blob | history
Linux kernel for KaRo TX COM modules