Add support for the MAX3100 SPI UART.

(akpm: queued pending confirmation of the new major number)

[randy.dunlap@oracle.com: select SERIAL_CORE]
Signed-off-by: Christian Pellegrin <chripell@fsfe.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Alan Cox <alan@lxorguk.ukuu.org.uk>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
diff --git a/include/linux/serial_core.h b/include/linux/serial_core.h
index 83e4b3f..57a97e5 100644
--- a/include/linux/serial_core.h
+++ b/include/linux/serial_core.h
@@ -164,6 +164,9 @@
 /* NWPSERIAL */
 #define PORT_NWPSERIAL	85
 
+/* MAX3100 */
+#define PORT_MAX3100    86
+
 #ifdef __KERNEL__
 
 #include <linux/compiler.h>