4.9-stable review patch. If anyone has any objections, please let me know.
------------------ From: "Rafael J. Wysocki" <[email protected]> [ 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: a4675fbc4a7a (cpufreq: intel_pstate: Replace timers with utilization update callbacks) Signed-off-by: Rafael J. Wysocki <[email protected]> Acked-by: Viresh Kumar <[email protected]> Signed-off-by: Sasha Levin <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]> --- drivers/cpufreq/intel_pstate.c | 1 + 1 file changed, 1 insertion(+) --- a/drivers/cpufreq/intel_pstate.c +++ b/drivers/cpufreq/intel_pstate.c @@ -609,6 +609,7 @@ static void intel_pstate_hwp_set_online_ 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; }
