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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)
committerColin Cross <ccross@android.com>
Tue, 14 Jun 2011 16:10:00 +0000 (09:10 -0700)
commit38dfc33b206dc608a8080630c6689ff3556e95e9
tree924712c194e641504ab692eb7e25c0267e18b927tree | snapshot
parent628c494e44e8ebead47e4a7688f032bfe7bdaca2commit | 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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