v4.19.13 snapshot.
diff --git a/drivers/hsi/controllers/Kconfig b/drivers/hsi/controllers/Kconfig
new file mode 100644
index 0000000..48e4eda
--- /dev/null
+++ b/drivers/hsi/controllers/Kconfig
@@ -0,0 +1,15 @@
+#
+# HSI controllers configuration
+#
+comment "HSI controllers"
+
+config OMAP_SSI
+ tristate "OMAP SSI hardware driver"
+ depends on HSI && OF && ARM && COMMON_CLK
+ depends on ARCH_OMAP3 || COMPILE_TEST
+ ---help---
+ SSI is a legacy version of HSI. It is usually used to connect
+ an application engine with a cellular modem.
+ If you say Y here, you will enable the OMAP SSI hardware driver.
+
+ If unsure, say N.