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cpufreq: interactive: don't skip waking up speedchange_task if target_freq > policy->cur

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When __cpufreq_driver_target() in speedchange_task failed for some reason, the
policy->cur could be lower than the target_freq. The governor misses to change
the target_freq if the target_freq is equal to the next_freq at the next sample
time.

Added a check to prevent the CPU to stay at the speed that is lower than the
target_freq for long duration.

Change-Id: Ibfdcd193b8280390b8f8374a63218aa31267f310
Signed-off-by: Minsung Kim <ms925.kim@samsung.com>
This commit is contained in:
Minsung Kim
2014-11-29 21:43:53 +09:00
committed by Ruchi Kandoi
parent 4fd02636be
commit 4b77eee35f
1 changed files with 2 additions and 1 deletions
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3
drivers/cpufreq/cpufreq_interactive.c
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@@ -472,7 +472,8 @@ static void cpufreq_interactive_timer(unsigned long data)
pcpu->floor_validate_time = now;
}
if (pcpu->target_freq == new_freq) {
if (pcpu->target_freq == new_freq &&
pcpu->target_freq <= pcpu->policy->cur) {
trace_cpufreq_interactive_already(
data, cpu_load, pcpu->target_freq,
pcpu->policy->cur, new_freq);