1 files changed, 26 insertions, 0 deletions

diff --git a/drivers/tty/serial/8250.h b/drivers/tty/serial/8250.h
index 6edf4a6a22d4..ae027be57e25 100644
--- a/drivers/tty/serial/8250.h
+++ b/drivers/tty/serial/8250.h
@@ -13,6 +13,32 @@
 
 #include <linux/serial_8250.h>
 
+struct uart_8250_port {
+        struct uart_port        port;
+        struct timer_list       timer;          /* "no irq" timer */
+        struct list_head        list;           /* ports on this IRQ */
+        unsigned short          capabilities;   /* port capabilities */
+        unsigned short          bugs;           /* port bugs */
+        unsigned int            tx_loadsz;      /* transmit fifo load size */
+        unsigned char           acr;
+        unsigned char           ier;
+        unsigned char           lcr;
+        unsigned char           mcr;
+        unsigned char           mcr_mask;       /* mask of user bits */
+        unsigned char           mcr_force;      /* mask of forced bits */
+        unsigned char           cur_iotype;     /* Running I/O type */
+
+        /*
+         * Some bits in registers are cleared on a read, so they must
+         * be saved whenever the register is read but the bits will not
+         * be immediately processed.
+         */
+#define LSR_SAVE_FLAGS UART_LSR_BRK_ERROR_BITS
+        unsigned char           lsr_saved_flags;
+#define MSR_SAVE_FLAGS UART_MSR_ANY_DELTA
+        unsigned char           msr_saved_flags;
+};
+
 struct old_serial_port {
         unsigned int uart;
         unsigned int baud_base;