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cpufreq: intel_pstate: Skip unnecessary PID resets on init

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PID controller parameters only need to be initialized if the
get_target_pstate_use_performance() P-state selection routine
is going to be used.  It is not necessary to initialize them
otherwise, so don't do that.

Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
This commit is contained in:
Rafael J. Wysocki 2017-03-28 00:11:53 +02:00
parent 7aec5b50e9
commit 694cb17347
1 changed files with 2 additions and 2 deletions
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4
drivers/cpufreq/intel_pstate.c
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@ -1911,12 +1911,12 @@ static int intel_pstate_init_cpu(unsigned int cpunum)
intel_pstate_disable_ee(cpunum);
intel_pstate_hwp_enable(cpu);
} else if (pstate_funcs.get_target_pstate == get_target_pstate_use_performance) {
intel_pstate_pid_reset(cpu);
}
intel_pstate_get_cpu_pstates(cpu);
intel_pstate_pid_reset(cpu);
pr_debug("controlling: cpu %d\n", cpunum);
return 0;