diff --git a/drivers/gpu/drm/bridge/synopsys/dw-hdmi.c b/drivers/gpu/drm/bridge/synopsys/dw-hdmi.c
index 4f9cf315801c..a3255467c428 100644
--- a/drivers/gpu/drm/bridge/synopsys/dw-hdmi.c
+++ b/drivers/gpu/drm/bridge/synopsys/dw-hdmi.c
@@ -2908,6 +2908,14 @@ static int dw_hdmi_connector_atomic_check(struct drm_connector *connector,
 	return 0;
 }
 
+void dw_hdmi_set_quant_range(struct dw_hdmi *hdmi)
+{
+	hdmi_writeb(hdmi, HDMI_FC_GCP_SET_AVMUTE, HDMI_FC_GCP);
+	dw_hdmi_setup(hdmi, &hdmi->previous_mode);
+	hdmi_writeb(hdmi, HDMI_FC_GCP_CLEAR_AVMUTE, HDMI_FC_GCP);
+}
+EXPORT_SYMBOL_GPL(dw_hdmi_set_quant_range);
+
 static void dw_hdmi_connector_force(struct drm_connector *connector)
 {
 	struct dw_hdmi *hdmi = container_of(connector, struct dw_hdmi,
diff --git a/drivers/gpu/drm/rockchip/dw_hdmi-rockchip.c b/drivers/gpu/drm/rockchip/dw_hdmi-rockchip.c
index 40cce5486ebe..094061cd7b7d 100644
--- a/drivers/gpu/drm/rockchip/dw_hdmi-rockchip.c
+++ b/drivers/gpu/drm/rockchip/dw_hdmi-rockchip.c
@@ -1188,6 +1188,7 @@ dw_hdmi_rockchip_set_property(struct drm_connector *connector,
 		return 0;
 	} else if (property == hdmi->quant_range) {
 		hdmi->hdmi_quant_range = val;
+		dw_hdmi_set_quant_range(hdmi->hdmi);
 		return 0;
 	} else if (property == config->hdr_output_metadata_property) {
 		return 0;
diff --git a/include/drm/bridge/dw_hdmi.h b/include/drm/bridge/dw_hdmi.h
index 12d129db70dc..5e3e592d5bd6 100644
--- a/include/drm/bridge/dw_hdmi.h
+++ b/include/drm/bridge/dw_hdmi.h
@@ -216,5 +216,6 @@ enum drm_connector_status dw_hdmi_phy_read_hpd(struct dw_hdmi *hdmi,
 void dw_hdmi_phy_update_hpd(struct dw_hdmi *hdmi, void *data,
 			    bool force, bool disabled, bool rxsense);
 void dw_hdmi_phy_setup_hpd(struct dw_hdmi *hdmi, void *data);
+void dw_hdmi_set_quant_range(struct dw_hdmi *hdmi);
 
 #endif /* __IMX_HDMI_H__ */