diff --git a/drivers/firmware/scmi/scmi_agent-uclass.c b/drivers/firmware/scmi/scmi_agent-uclass.c
index e7ec2c108e6..69a277e8786 100644
--- a/drivers/firmware/scmi/scmi_agent-uclass.c
+++ b/drivers/firmware/scmi/scmi_agent-uclass.c
@@ -35,6 +35,7 @@ static const struct error_code scmi_linux_errmap[] = {
 	{ .scmi = SCMI_GENERIC_ERROR, .errno = -EIO, },
 	{ .scmi = SCMI_HARDWARE_ERROR, .errno = -EREMOTEIO, },
 	{ .scmi = SCMI_PROTOCOL_ERROR, .errno = -EPROTO, },
+	{ .scmi = SCMI_IN_USE, .errno = -EADDRINUSE, },
 };
 
 /**
diff --git a/include/scmi_protocols.h b/include/scmi_protocols.h
index 762a1032c37..95e0c3cce3b 100644
--- a/include/scmi_protocols.h
+++ b/include/scmi_protocols.h
@@ -40,6 +40,7 @@ enum scmi_status_code {
 	SCMI_GENERIC_ERROR = -8,
 	SCMI_HARDWARE_ERROR = -9,
 	SCMI_PROTOCOL_ERROR = -10,
+	SCMI_IN_USE = -11,
 };
 
 /*