cpufreq: governor: Simplify performance and powersave governors
The performance and powersave cpufreq governors handle the CPUFREQ_GOV_START event in the same way as CPUFREQ_GOV_LIMITS. However, the cpufreq core always invokes cpufreq_governor() with the event argument equal to CPUFREQ_GOV_LIMITS right after invoking it with event equal to CPUFREQ_GOV_START. As a result, for both the governors in question, __cpufreq_driver_target() is executed twice in a row with the same arguments which is not useful. For this reason, simplify the performance and powersave governors to handle the CPUFREQ_GOV_LIMITS event only as that's going to be sufficient for the governor start too. Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com> Acked-by: Viresh Kumar <viresh.kumar@linaro.org>
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@ -20,10 +20,8 @@ static int cpufreq_governor_performance(struct cpufreq_policy *policy,
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unsigned int event)
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{
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switch (event) {
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case CPUFREQ_GOV_START:
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case CPUFREQ_GOV_LIMITS:
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pr_debug("setting to %u kHz because of event %u\n",
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policy->max, event);
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pr_debug("setting to %u kHz\n", policy->max);
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__cpufreq_driver_target(policy, policy->max,
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CPUFREQ_RELATION_H);
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break;
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@ -20,10 +20,8 @@ static int cpufreq_governor_powersave(struct cpufreq_policy *policy,
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unsigned int event)
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{
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switch (event) {
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case CPUFREQ_GOV_START:
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case CPUFREQ_GOV_LIMITS:
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pr_debug("setting to %u kHz because of event %u\n",
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policy->min, event);
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pr_debug("setting to %u kHz\n", policy->min);
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__cpufreq_driver_target(policy, policy->min,
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CPUFREQ_RELATION_L);
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break;
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