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cpufreq: intel_pstate: Remove PID debugfs when not used

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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>
This commit is contained in:
Srinivas Pandruvada 2016-10-21 09:38:20 -07:00 committed by Rafael J. Wysocki
parent 1d29815ef2
commit 185d82456e
1 changed files with 3 additions and 1 deletions
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4
drivers/cpufreq/intel_pstate.c
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@ -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;