dt-bindings: xilinx-uartps: Add support for cts-override

Flow control is configurable in xilinx-uartps
Add a dt binding to check for the same.

Signed-off-by: Shubhrajyoti Datta <shubhrajyoti.datta@xilinx.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/Documentation/devicetree/bindings/serial/cdns,uart.txt b/Documentation/devicetree/bindings/serial/cdns,uart.txt
index 227bb770b0276af8cb716bd89d88e8c055c168f8..4efc560f90abbdb22bfe2de5e75fcd74187620d8 100644 (file)
--- a/Documentation/devicetree/bindings/serial/cdns,uart.txt
+++ b/Documentation/devicetree/bindings/serial/cdns,uart.txt
@@ -12,6 +12,11 @@ Required properties:
   See ../clocks/clock-bindings.txt for details.
 
 
+Optional properties:
+- cts-override : Override the CTS modem status signal. This signal will
+  always be reported as active instead of being obtained from the modem status
+  register. Define this if your serial port does not use this pin
+
 Example:
        uart@e0000000 {
                compatible = "cdns,uart-r1p8";