diff --git a/drivers/gpu/drm/display/drm_hdmi_helper.c b/drivers/gpu/drm/display/drm_hdmi_helper.c
index bf1c7963b984..f85cce3d6254 100644
--- a/drivers/gpu/drm/display/drm_hdmi_helper.c
+++ b/drivers/gpu/drm/display/drm_hdmi_helper.c
@@ -16,6 +16,7 @@
 #include <drm/drm_print.h>
 #include <drm/drm_property.h>
 
+#define DRM_HDMI_SCDC_SOURCE_VERSION	1
 #define DRM_HDMI_SCDC_POLL_DELAY_MS	1000
 
 static inline bool is_eotf_supported(u8 output_eotf, u8 sink_eotf)
@@ -556,6 +557,12 @@ int drm_connector_hdmi_enable_scrambling(struct drm_connector *connector,
 	if (!connector->ddc)
 		return -EINVAL;
 
+	/*
+	 * Advertise our SCDC source version. This is purely informational and
+	 * does not gate scrambling, so failures are non-fatal.
+	 */
+	drm_scdc_set_source_version(connector, DRM_HDMI_SCDC_SOURCE_VERSION);
+
 	drm_dbg_kms(dev, "Enabling scrambling\n");
 
 	if (!hdmi->scdc_work_initialized) {