From 694cb173475a048a05daebf27cc8fdb7865c158b Mon Sep 17 00:00:00 2001 From: "Rafael J. Wysocki" <rafael.j.wysocki@intel.com> Date: Tue, 28 Mar 2017 00:11:53 +0200 Subject: 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> --- drivers/cpufreq/intel_pstate.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/cpufreq/intel_pstate.c b/drivers/cpufreq/intel_pstate.c index b631ab02f170..ee61db93163c 100644 --- a/drivers/cpufreq/intel_pstate.c +++ b/drivers/cpufreq/intel_pstate.c @@ -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; -- cgit v1.2.3