Commit 5b6667c7 authored by Steve Muckle's avatar Steve Muckle Committed by Rafael J. Wysocki

cpufreq: acpi-cpufreq: use cached frequency mapping when possible

A call to cpufreq_driver_resolve_freq will cache the mapping from
the desired target frequency to the frequency table index. If there
is a mapping for the desired target frequency then use it instead of
looking up the mapping again.
Signed-off-by: default avatarSteve Muckle <smuckle@linaro.org>
Reviewed-by: default avatarViresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: default avatarRafael J. Wysocki <rafael.j.wysocki@intel.com>
parent 5cbea469
...@@ -473,7 +473,10 @@ unsigned int acpi_cpufreq_fast_switch(struct cpufreq_policy *policy, ...@@ -473,7 +473,10 @@ unsigned int acpi_cpufreq_fast_switch(struct cpufreq_policy *policy,
/* /*
* Find the closest frequency above target_freq. * Find the closest frequency above target_freq.
*/ */
index = cpufreq_table_find_index_dl(policy, target_freq); if (policy->cached_target_freq == target_freq)
index = policy->cached_resolved_idx;
else
index = cpufreq_table_find_index_dl(policy, target_freq);
entry = &policy->freq_table[index]; entry = &policy->freq_table[index];
next_freq = entry->frequency; next_freq = entry->frequency;
......
Markdown is supported
0%
or
You are about to add 0 people to the discussion. Proceed with caution.
Finish editing this message first!
Please register or to comment