v4.19.13 snapshot.
diff --git a/drivers/ntb/hw/Kconfig b/drivers/ntb/hw/Kconfig
new file mode 100644
index 0000000..e51b581
--- /dev/null
+++ b/drivers/ntb/hw/Kconfig
@@ -0,0 +1,4 @@
+source "drivers/ntb/hw/amd/Kconfig"
+source "drivers/ntb/hw/idt/Kconfig"
+source "drivers/ntb/hw/intel/Kconfig"
+source "drivers/ntb/hw/mscc/Kconfig"