diff --git a/[refs] b/[refs]
index f3f70ebcd9c2..d7be8c38f82a 100644
--- a/[refs]
+++ b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: e463595fd9c752fa4bf06b47df93ef9ade3c7cf0
+refs/heads/master: bff52fd458a1bca06266449b0ab8a43e9a50d240
diff --git a/trunk/drivers/tty/serial/pch_uart.c b/trunk/drivers/tty/serial/pch_uart.c
index 35cb9af893ba..037368285301 100644
--- a/trunk/drivers/tty/serial/pch_uart.c
+++ b/trunk/drivers/tty/serial/pch_uart.c
@@ -45,6 +45,7 @@ enum {
 /* Set the max number of UART port
  * Intel EG20T PCH: 4 port
  * OKI SEMICONDUCTOR ML7213 IOH: 3 port
+ * OKI SEMICONDUCTOR ML7223 IOH: 2 port
 */
 #define PCH_UART_NR	4