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-rw-r--r--drivers/gpu/drm/nouveau/core/subdev/therm/temp.c7
1 files changed, 7 insertions, 0 deletions
diff --git a/drivers/gpu/drm/nouveau/core/subdev/therm/temp.c b/drivers/gpu/drm/nouveau/core/subdev/therm/temp.c
index 820e097..bf9b3ce 100644
--- a/drivers/gpu/drm/nouveau/core/subdev/therm/temp.c
+++ b/drivers/gpu/drm/nouveau/core/subdev/therm/temp.c
@@ -58,11 +58,18 @@ static void
nouveau_therm_temp_safety_checks(struct nouveau_therm *therm)
{
struct nouveau_therm_priv *priv = (void *)therm;
+ struct nvbios_therm_sensor *s = &priv->bios_sensor;
if (!priv->bios_sensor.slope_div)
priv->bios_sensor.slope_div = 1;
if (!priv->bios_sensor.offset_den)
priv->bios_sensor.offset_den = 1;
+
+ /* enforce a minimum hysteresis on thresholds */
+ s->thrs_fan_boost.hysteresis = max_t(u8, s->thrs_fan_boost.hysteresis, 2);
+ s->thrs_down_clock.hysteresis = max_t(u8, s->thrs_down_clock.hysteresis, 2);
+ s->thrs_critical.hysteresis = max_t(u8, s->thrs_critical.hysteresis, 2);
+ s->thrs_shutdown.hysteresis = max_t(u8, s->thrs_shutdown.hysteresis, 2);
}
/* must be called with alarm_program_lock taken ! */
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