diff --git a/drivers/soc/qcom/apr.c b/drivers/soc/qcom/apr.c
index 7063e0d42c5e..660ee3aea447 100644
--- a/drivers/soc/qcom/apr.c
+++ b/drivers/soc/qcom/apr.c
@@ -319,9 +319,10 @@ static int apr_add_device(struct device *dev, struct device_node *np,
 		goto out;
 	}
 
+	/* Protection domain is optional, it does not exist on older platforms */
 	ret = of_property_read_string_index(np, "qcom,protection-domain",
 					    1, &adev->service_path);
-	if (ret < 0) {
+	if (ret < 0 && ret != -EINVAL) {
 		dev_err(dev, "Failed to read second value of qcom,protection-domain\n");
 		goto out;
 	}