cpufreq: intel_pstate: Remove PID debugfs when not used

When target state is calculated using get_target_pstate_use_cpu_load(),
PID controller is not used, hence it has no effect on performance.
So don't present debugfs entries to tune PID controller.

Signed-off-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>

diff --git a/drivers/cpufreq/intel_pstate.c b/drivers/cpufreq/intel_pstate.c
index 16d071a618b718fcf28d96f7c00434546ddc3cf5..d46e881ff4d774ce9bdc2bc378d2bf222a061589 100644 (file)
--- a/drivers/cpufreq/intel_pstate.c
+++ b/drivers/cpufreq/intel_pstate.c
@@ -636,8 +636,10 @@ static void __init intel_pstate_debug_expose_params(void)
        struct dentry *debugfs_parent;
        int i = 0;
 
-       if (hwp_active)
+       if (hwp_active ||
+           pstate_funcs.get_target_pstate == get_target_pstate_use_cpu_load)
                return;
+
        debugfs_parent = debugfs_create_dir("pstate_snb", NULL);
        if (IS_ERR_OR_NULL(debugfs_parent))
                return;