diff --git a/drivers/media/media-entity.c b/drivers/media/media-entity.c
index 37c334e..4122d7f 100644
--- a/drivers/media/media-entity.c
+++ b/drivers/media/media-entity.c
@@ -279,8 +279,14 @@
 				continue;
 
 			ret = entity->ops->link_validate(link);
-			if (ret < 0 && ret != -ENOIOCTLCMD)
+			if (ret < 0 && ret != -ENOIOCTLCMD) {
+				dev_dbg(entity->parent->dev,
+					"link validation failed for \"%s\":%u -> \"%s\":%u, error %d\n",
+					entity->name, link->source->index,
+					link->sink->entity->name,
+					link->sink->index, ret);
 				goto error;
+			}
 		}
 
 		/* Either no links or validated links are fine. */
@@ -288,6 +294,10 @@
 
 		if (!bitmap_full(active, entity->num_pads)) {
 			ret = -EPIPE;
+			dev_dbg(entity->parent->dev,
+				"\"%s\":%u must be connected by an enabled link\n",
+				entity->name,
+				find_first_zero_bit(active, entity->num_pads));
 			goto error;
 		}
 	}