diff --git a/drivers/gpu/drm/rockchip/analogix_dp-rockchip.c b/drivers/gpu/drm/rockchip/analogix_dp-rockchip.c
index 6a896b61bb64..41b24b0249b2 100644
--- a/drivers/gpu/drm/rockchip/analogix_dp-rockchip.c
+++ b/drivers/gpu/drm/rockchip/analogix_dp-rockchip.c
@@ -59,6 +59,8 @@ struct rockchip_grf_reg_field {
  * @ssc: check if SSC is supported by source
  * @audio: check if audio is supported by source
  * @split_mode: check if split mode is supported
+ * @format_yuv: check if YUV output format is supported
+ * @max_bpc: the maximum supported bpc
  */
 struct rockchip_dp_chip_data {
 	const struct rockchip_grf_reg_field lcdc_sel;