diff --git a/drivers/gpu/drm/mediatek/mtk_disp_rdma.c b/drivers/gpu/drm/mediatek/mtk_disp_rdma.c
index e04319fedf463..d46b8ae1d0800 100644
--- a/drivers/gpu/drm/mediatek/mtk_disp_rdma.c
+++ b/drivers/gpu/drm/mediatek/mtk_disp_rdma.c
@@ -56,8 +56,9 @@ struct mtk_disp_rdma_data {
 
 /**
  * struct mtk_disp_rdma - DISP_RDMA driver structure
- * @ddp_comp - structure containing type enum and hardware resources
- * @crtc - associated crtc to report irq events to
+ * @ddp_comp: structure containing type enum and hardware resources
+ * @crtc: associated crtc to report irq events to
+ * @data: local driver data
  */
 struct mtk_disp_rdma {
 	struct mtk_ddp_comp		ddp_comp;