serial: add OMAP-specific defines

OMAP has some extra Interrupt types which can
be really useful for SW. Let's define them
so we can later use those in OMAP's serial driver.

Tested-by: Shubhrajyoti D <shubhrajyoti@ti.com>
Acked-by: Santosh Shilimkar <santosh.shilimkar@ti.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

1 files changed, 4 insertions, 0 deletions

diff --git a/include/linux/serial_reg.h b/include/linux/serial_reg.h
index 8ce70d76f836..5ed325e88a81 100644
--- a/include/linux/serial_reg.h
+++ b/include/linux/serial_reg.h
@@ -40,6 +40,10 @@
 
 #define UART_IIR_BUSY           0x07 /* DesignWare APB Busy Detect */
 
+#define UART_IIR_RX_TIMEOUT     0x0c /* OMAP RX Timeout interrupt */
+#define UART_IIR_XOFF           0x10 /* OMAP XOFF/Special Character */
+#define UART_IIR_CTS_RTS_DSR    0x20 /* OMAP CTS/RTS/DSR Change */
+
 #define UART_FCR        2       /* Out: FIFO Control Register */
 #define UART_FCR_ENABLE_FIFO    0x01 /* Enable the FIFO */
 #define UART_FCR_CLEAR_RCVR     0x02 /* Clear the RCVR FIFO */