From d98d099b9fbb7bbb20a74efe5327322831c9c9a3 Mon Sep 17 00:00:00 2001 From: Dirk Brandewie <dirk.j.brandewie@intel.com> Date: Wed, 12 Feb 2014 10:01:05 -0800 Subject: intel_pstate: fix pid_reset to use fixed point values commit d253d2a526 (Improve accuracy by not truncating until final result), changed internal variables of the PID to be fixed point numbers. Update the pid_reset() to reflect this change. Signed-off-by: Dirk Brandewie <dirk.j.brandewie@intel.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com> --- drivers/cpufreq/intel_pstate.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers/cpufreq/intel_pstate.c') diff --git a/drivers/cpufreq/intel_pstate.c b/drivers/cpufreq/intel_pstate.c index 41f9eb2..9ab109c 100644 --- a/drivers/cpufreq/intel_pstate.c +++ b/drivers/cpufreq/intel_pstate.c @@ -153,7 +153,7 @@ static inline void pid_reset(struct _pid *pid, int setpoint, int busy, pid->setpoint = setpoint; pid->deadband = deadband; pid->integral = int_tofp(integral); - pid->last_err = setpoint - busy; + pid->last_err = int_tofp(setpoint) - int_tofp(busy); } static inline void pid_p_gain_set(struct _pid *pid, int percent) -- cgit v1.1