diff options
Diffstat (limited to 'drivers/gpu/drm/i915/i915_irq.c')
| -rw-r--r-- | drivers/gpu/drm/i915/i915_irq.c | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/drivers/gpu/drm/i915/i915_irq.c b/drivers/gpu/drm/i915/i915_irq.c index 5d1f53723388..d7e47d6082de 100644 --- a/drivers/gpu/drm/i915/i915_irq.c +++ b/drivers/gpu/drm/i915/i915_irq.c @@ -4863,6 +4863,13 @@ void intel_irq_init(struct drm_i915_private *dev_priv) dev_priv->display_irqs_enabled = false; dev_priv->hotplug.hpd_storm_threshold = HPD_STORM_DEFAULT_THRESHOLD; + /* If we have MST support, we want to avoid doing short HPD IRQ storm + * detection, as short HPD storms will occur as a natural part of + * sideband messaging with MST. + * On older platforms however, IRQ storms can occur with both long and + * short pulses, as seen on some G4x systems. + */ + dev_priv->hotplug.hpd_short_storm_enabled = !HAS_DP_MST(dev_priv); dev->driver->get_vblank_timestamp = drm_calc_vbltimestamp_from_scanoutpos; dev->driver->get_scanout_position = i915_get_crtc_scanoutpos; |