diff --git a/drivers/gpu/drm/vc4/vc4_hdmi.c b/drivers/gpu/drm/vc4/vc4_hdmi.c
index bdcc54c87d7e..e86bcd40a663 100644
--- a/drivers/gpu/drm/vc4/vc4_hdmi.c
+++ b/drivers/gpu/drm/vc4/vc4_hdmi.c
@@ -1058,10 +1058,12 @@ static int vc4_hdmi_audio_init(struct vc4_hdmi *hdmi)
 	struct device *dev = &hdmi->pdev->dev;
 	const __be32 *addr;
 	int ret;
+	int len;
 
-	if (!of_find_property(dev->of_node, "dmas", NULL)) {
+	if (!of_find_property(dev->of_node, "dmas", &len) ||
+	    len == 0) {
 		dev_warn(dev,
-			 "'dmas' DT property is missing, no HDMI audio\n");
+			 "'dmas' DT property is missing or empty, no HDMI audio\n");
 		return 0;
 	}