[PATCH 01/14] cpufreq: intel_pstate: Update pid_params.sample_rate_ns in pid_param_set()

From: Rafael J. Wysocki
Date: Sun Mar 12 2017 - 13:33:53 EST


From: Rafael J. Wysocki <rafael.j.wysocki@xxxxxxxxx>

Fix the debugfs interface for PID tuning to actually update
pid_params.sample_rate_ns on PID parameters updates, as changing
pid_params.sample_rate_ms via debugfs has no effect now.

Fixes: a4675fbc4a7a (cpufreq: intel_pstate: Replace timers with utilization update callbacks)
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@xxxxxxxxx>
---
drivers/cpufreq/intel_pstate.c | 1 +
1 file changed, 1 insertion(+)

Index: linux-pm/drivers/cpufreq/intel_pstate.c
===================================================================
--- linux-pm.orig/drivers/cpufreq/intel_pstate.c
+++ linux-pm/drivers/cpufreq/intel_pstate.c
@@ -983,6 +983,7 @@ static void intel_pstate_update_policies
static int pid_param_set(void *data, u64 val)
{
*(u32 *)data = val;
+ pid_params.sample_rate_ns = pid_params.sample_rate_ms * NSEC_PER_MSEC;
intel_pstate_reset_all_pid();
return 0;
}