diff --git a/arch/arm/configs/rk3506-display.config b/arch/arm/configs/rk3506-display.config
index 529edaaac1cd..36985c54945c 100644
--- a/arch/arm/configs/rk3506-display.config
+++ b/arch/arm/configs/rk3506-display.config
@@ -221,6 +221,7 @@ CONFIG_MEDIA_SUPPORT_FILTER=y
 # CONFIG_ROCKCHIP_DW_HDCP2 is not set
 # CONFIG_ROCKCHIP_DW_HDMI is not set
 CONFIG_ROCKCHIP_DW_MIPI_DSI=y
+# CONFIG_ROCKCHIP_DW_MIPI_DSI2 is not set
 CONFIG_ROCKCHIP_FLEXBUS_CIF=y
 CONFIG_ROCKCHIP_FLEXBUS_CIF_USE_DUMMY_BUF=y
 # CONFIG_ROCKCHIP_FLEXBUS_CIF_USE_NONE_DUMMY_BUF is not set