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>

1 files changed, 1 insertions, 1 deletions

diff --git a/drivers/cpufreq/intel_pstate.c b/drivers/cpufreq/intel_pstate.c
index 41f9eb295f0c..9ab109c0f90c 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)