diff options
Diffstat (limited to 'common/fan.c')
| -rw-r--r-- | common/fan.c | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/common/fan.c b/common/fan.c index cb080c15c9..9196ddf36b 100644 --- a/common/fan.c +++ b/common/fan.c @@ -19,6 +19,11 @@ * things manually. */ static int thermal_control_enabled[CONFIG_FANS]; +#ifdef CONFIG_FAN_UPDATE_PERIOD +/* Should we ignore the fans for a while? */ +static int fan_update_counter[CONFIG_FANS]; +#endif + #ifndef CONFIG_FAN_RPM_CUSTOM /* This is the default implementation. It's only called over [0,100]. * Convert the percentage to a target RPM. We can't simply scale all @@ -49,6 +54,13 @@ test_mockable void fan_set_percent_needed(int fan, int pct) if (!thermal_control_enabled[fan]) return; +#ifdef CONFIG_FAN_UPDATE_PERIOD + /* Only set each fan every so often, to avoid rapid changes. */ + fan_update_counter[fan] %= CONFIG_FAN_UPDATE_PERIOD; + if (fan_update_counter[fan]++) + return; +#endif + new_rpm = fan_percent_to_rpm(fan, pct); actual_rpm = fan_get_rpm_actual(fans[fan].ch); |