The Kconfig currently controlling compilation of this code is:

8250/Kconfig:config SERIAL_8250_LPC18XX
8250/Kconfig:        bool "NXP LPC18xx/43xx serial port support"

...meaning that it currently is not being built as a module by anyone.

When targetting orphaned modular code in non-modular drivers, this
came up.  Joachim indicated that the driver was actually meant to
be tristate but ended up bool by accident.  So here we make it
tristate instead of removing the modular code that was essentially
orphaned.

Suggested-by: Joachim Eastwood <redacted>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Jiri Slaby <redacted>
Cc: Joachim Eastwood <redacted>
Cc: linux-serial at vger.kernel.org
Cc: linux-arm-kernel at lists.infradead.org
Signed-off-by: Paul Gortmaker <redacted>
---
 drivers/tty/serial/8250/Kconfig | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/tty/serial/8250/Kconfig b/drivers/tty/serial/8250/Kconfig
index e1de1181b322..f5c4b01f6f1d 100644
--- a/drivers/tty/serial/8250/Kconfig
+++ b/drivers/tty/serial/8250/Kconfig

@@ -337,7 +337,7 @@ config SERIAL_8250_FINTEK
 	  through the PNP driver. If unsure, say N.
 
 config SERIAL_8250_LPC18XX
-	bool "NXP LPC18xx/43xx serial port support"
+	tristate "NXP LPC18xx/43xx serial port support"
 	depends on SERIAL_8250 && OF && (ARCH_LPC18XX || COMPILE_TEST)
 	default ARCH_LPC18XX
 	help

-- 
2.5.0