diff --git a/drivers/gpu/drm/rockchip/cdn-dp-core.c b/drivers/gpu/drm/rockchip/cdn-dp-core.c
index 6802d9b65f828a266e75dede349e196402e82bb3..8ab3247dbc4aab72f20c44f5227612ad20413b09 100644
--- a/drivers/gpu/drm/rockchip/cdn-dp-core.c
+++ b/drivers/gpu/drm/rockchip/cdn-dp-core.c
@@ -42,6 +42,7 @@
 #define CDN_FW_TIMEOUT_MS	(64 * 1000)
 #define CDN_DPCD_TIMEOUT_MS	5000
 #define CDN_DP_FIRMWARE		"rockchip/dptx.bin"
+MODULE_FIRMWARE(CDN_DP_FIRMWARE);
 
 struct cdn_dp_data {
 	u8 max_phy;