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-rw-r--r--include/linux/serial_core.h1
-rw-r--r--include/uapi/linux/serial.h1
2 files changed, 2 insertions, 0 deletions
diff --git a/include/linux/serial_core.h b/include/linux/serial_core.h
index 297d4fa1cfe5..35aa87b96b71 100644
--- a/include/linux/serial_core.h
+++ b/include/linux/serial_core.h
@@ -150,6 +150,7 @@ struct uart_port {
#define UPIO_AU (SERIAL_IO_AU) /* Au1x00 and RT288x type IO */
#define UPIO_TSI (SERIAL_IO_TSI) /* Tsi108/109 type IO */
#define UPIO_MEM32BE (SERIAL_IO_MEM32BE) /* 32b big endian */
+#define UPIO_MEM16 (SERIAL_IO_MEM16) /* 16b little endian */
unsigned int read_status_mask; /* driver specific */
unsigned int ignore_status_mask; /* driver specific */
diff --git a/include/uapi/linux/serial.h b/include/uapi/linux/serial.h
index 25331f9faa76..5d59c3ebf459 100644
--- a/include/uapi/linux/serial.h
+++ b/include/uapi/linux/serial.h
@@ -69,6 +69,7 @@ struct serial_struct {
#define SERIAL_IO_AU 4
#define SERIAL_IO_TSI 5
#define SERIAL_IO_MEM32BE 6
+#define SERIAL_IO_MEM16 7
#define UART_CLEAR_FIFO 0x01
#define UART_USE_FIFO 0x02