cpufreq: intel_pstate: Skip unnecessary PID resets on init



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>

parent 7aec5b50

drivers/cpufreq/intel_pstate.c

+2 −2

Original line number	Diff line number	Diff line
		@@ -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;