diff --git a/drivers/gpu/drm/rockchip/rockchip_rgb.c b/drivers/gpu/drm/rockchip/rockchip_rgb.c
index c29311b935c3..e0c125d1b2f2 100644
--- a/drivers/gpu/drm/rockchip/rockchip_rgb.c
+++ b/drivers/gpu/drm/rockchip/rockchip_rgb.c
@@ -26,6 +26,7 @@
 #include <linux/regmap.h>
 #include <linux/mfd/syscon.h>
 #include <linux/phy/phy.h>
+#include <uapi/linux/videodev2.h>
 
 #include "rockchip_drm_drv.h"
 #include "rockchip_drm_vop.h"
@@ -189,6 +190,8 @@ rockchip_rgb_encoder_atomic_check(struct drm_encoder *encoder,
 
 	s->output_type = DRM_MODE_CONNECTOR_DPI;
 	s->tv_state = &conn_state->tv;
+	s->eotf = TRADITIONAL_GAMMA_SDR;
+	s->color_space = V4L2_COLORSPACE_DEFAULT;
 
 	return 0;
 }