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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)
committerArve Hjønnevåg <arve@android.com>
Mon, 1 Jul 2013 20:40:33 +0000 (13:40 -0700)
commitabc4a85b910ca17890117b48641d21704606e4b4
tree831cf198dfd993cb853d1fd390519982df674169tree | snapshot
parente85c25b3e681ea3759790f4c9c7cde527a43d7e2commit | 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
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