diff --git a/drivers/firmware/scmi/scmi_agent-uclass.c b/drivers/firmware/scmi/scmi_agent-uclass.c
index e6e43ae..ea79cfa 100644
--- a/drivers/firmware/scmi/scmi_agent-uclass.c
+++ b/drivers/firmware/scmi/scmi_agent-uclass.c
@@ -352,6 +352,22 @@
 	return 0;
 }
 
+static struct driver *scmi_proto_driver_get(unsigned int proto_id)
+{
+	struct scmi_proto_driver *start, *entry;
+	int n_ents;
+
+	start = ll_entry_start(struct scmi_proto_driver, scmi_proto_driver);
+	n_ents = ll_entry_count(struct scmi_proto_driver, scmi_proto_driver);
+
+	for (entry = start; entry != start + n_ents; entry++) {
+		if (entry->match->proto_id == proto_id)
+			return entry->driver;
+	}
+
+	return NULL;
+}
+
 /*
  * SCMI agent devices binds devices of various uclasses depending on
  * the FDT description. scmi_bind_protocol() is a generic bind sequence