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

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[ 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: a4675fbc4a (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>
This commit is contained in:
Rafael J. Wysocki
2017-03-12 18:12:56 +01:00
committed by Greg Kroah-Hartman
parent 27848be7eb
commit ffb6a7637c
1 changed files with 1 additions and 0 deletions
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drivers/cpufreq/intel_pstate.c
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@@ -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;
}