diff options
| -rw-r--r-- | sys/dev/pci/drm/i915/display/intel_drrs.c | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/sys/dev/pci/drm/i915/display/intel_drrs.c b/sys/dev/pci/drm/i915/display/intel_drrs.c index 7bee3e47661..ed26c02d382 100644 --- a/sys/dev/pci/drm/i915/display/intel_drrs.c +++ b/sys/dev/pci/drm/i915/display/intel_drrs.c @@ -445,6 +445,7 @@ intel_dp_drrs_init(struct intel_connector *connector, struct drm_display_mode *fixed_mode) { struct drm_i915_private *dev_priv = to_i915(connector->base.dev); + struct intel_encoder *encoder = connector->encoder; struct drm_display_mode *downclock_mode = NULL; INIT_DELAYED_WORK(&dev_priv->drrs.work, intel_edp_drrs_downclock_work); @@ -456,6 +457,13 @@ intel_dp_drrs_init(struct intel_connector *connector, return NULL; } + if ((DISPLAY_VER(dev_priv) < 8 && !HAS_GMCH(dev_priv)) && + encoder->port != PORT_A) { + drm_dbg_kms(&dev_priv->drm, + "DRRS only supported on eDP port A\n"); + return NULL; + } + if (dev_priv->vbt.drrs_type != SEAMLESS_DRRS_SUPPORT) { drm_dbg_kms(&dev_priv->drm, "VBT doesn't support DRRS\n"); return NULL; |