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intel_pstate: fix pid_reset to use fixed point values

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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>
This commit is contained in:
Dirk Brandewie 2014-02-12 10:01:05 -08:00 committed by Rafael J. Wysocki
parent d37e2b7644
commit d98d099b9f
1 changed files with 1 additions and 1 deletions
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drivers/cpufreq/intel_pstate.c
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@ -153,7 +153,7 @@ static inline void pid_reset(struct _pid *pid, int setpoint, int busy,
pid->setpoint = setpoint; pid->setpoint = setpoint;
pid->deadband = deadband; pid->deadband = deadband;
pid->integral = int_tofp(integral); 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) static inline void pid_p_gain_set(struct _pid *pid, int percent)