Commit ffb6a763 authored Mar 12, 2017 by Rafael J. Wysocki Committed by Greg Kroah-Hartman Oct 08, 2017

cpufreq: intel_pstate: Update pid_params.sample_rate_ns in pid_param_set()




[ Upstream commit 6e7408acd04d06c04981c0c0fb5a2462b16fae4f ]

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: a4675fbc (cpufreq: intel_pstate: Replace timers with utilization update callbacks)
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Acked-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Sasha Levin <alexander.levin@verizon.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

parent 27848be7

drivers/cpufreq/intel_pstate.c

+1 −0

Original line number	Diff line number	Diff line
		@@ -609,6 +609,7 @@ static void intel_pstate_hwp_set_online_cpus(void)
		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;
		}