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omap3: Decrease cpufreq transition latency

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Adjust OMAP3 frequency transition latency from 10,000,000uS to a more
reasonable 300,000uS.  This causes ondemand and conservative governors to
sample CPU load more often resulting in more responsive behavior.

Tested on Android 2.6.29; using this value and conservative governor, CORE
power consumption on Zoom2 was comparable to the old and unresponsive
10,000,000uS value while UI responsiveness was greatly improved.

Signed-off-by: Mike Turquette <mturquette@ti.com>
Signed-off-by: Kevin Hilman <khilman@deeprootsystems.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
This commit is contained in:
Mike Turquette 2009-11-11 11:00:38 -08:00 committed by Tony Lindgren
parent 1ea6e6652a
commit b029839cf1
1 changed files with 1 additions and 1 deletions
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2
arch/arm/plat-omap/cpu-omap.c
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@ -127,7 +127,7 @@ static int __init omap_cpu_init(struct cpufreq_policy *policy)
}
/* FIXME: what's the actual transition time? */
policy->cpuinfo.transition_latency = 10 * 1000 * 1000;
policy->cpuinfo.transition_latency = 300 * 1000;
return 0;
}