[PATCH] tty: serial: fix earlycon dependency

[Tong Zhang]

parse_options() in drivers/tty/serial/earlycon.c calls
uart_parse_earlycon() in drivers/tty/serial/serial_core.c
therefore selecting SERIAL_EARLYCON should automatically
select SERIAL_CORE, otherwise will result in symbol not
found error during linking if SERIAL_CORE is not configured
as builtin

Signed-off-by: Tong Zhang <ztong0001@xxxxxxxxx>
---
 drivers/tty/serial/Kconfig | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/tty/serial/Kconfig b/drivers/tty/serial/Kconfig
index 8a0352eb337c..42e844314cbb 100644
--- a/drivers/tty/serial/Kconfig
+++ b/drivers/tty/serial/Kconfig
@@ -8,6 +8,7 @@ menu "Serial drivers"
 
 config SERIAL_EARLYCON
 	bool
+	select SERIAL_CORE
 	help
 	  Support for early consoles with the earlycon parameter. This enables
 	  the console before standard serial driver is probed. The console is
-- 
2.25.1