1 files changed, 11 insertions, 0 deletions

diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c
index 461a637f1ef7..4154bcd7a070 100644
--- a/drivers/gpu/drm/i915/intel_display.c
+++ b/drivers/gpu/drm/i915/intel_display.c
@@ -3841,6 +3841,17 @@ static bool intel_choose_pipe_bpp_dither(struct drm_crtc *crtc,
                         }
                 }
 
+                if (intel_encoder->type == INTEL_OUTPUT_EDP) {
+                        /* Use VBT settings if we have an eDP panel */
+                        unsigned int edp_bpc = dev_priv->edp.bpp / 3;
+
+                        if (edp_bpc < display_bpc) {
+                                DRM_DEBUG_KMS("clamping display bpc (was %d) to eDP (%d)\n", display_bpc, edp_bpc);
+                                display_bpc = edp_bpc;
+                        }
+                        continue;
+                }
+
                 /*
                  * HDMI is either 12 or 8, so if the display lets 10bpc sneak
                  * through, clamp it down.  (Note: >12bpc will be caught below.)