From: Shubhrajyoti Datta <shubhrajyoti.datta@xxxxxxxxxx>
Vivado has a configurationo for selecting the modem control.
Add a dt binding to check for the same.
Signed-off-by: Shubhrajyoti Datta <shubhrajyoti.datta@xxxxxxxxxx>
---
Documentation/devicetree/bindings/serial/cdns,uart.txt | 4 ++++
1 file changed, 4 insertions(+)
diff --git a/Documentation/devicetree/bindings/serial/cdns,uart.txt b/Documentation/devicetree/bindings/serial/cdns,uart.txt
index 227bb77..3e96619 100644
--- a/Documentation/devicetree/bindings/serial/cdns,uart.txt
+++ b/Documentation/devicetree/bindings/serial/cdns,uart.txt
@@ -12,6 +12,10 @@ Required properties:
See ../clocks/clock-bindings.txt for details.
+Optional properties:
+- xlnx,nomodem: The presence of this property indicates that the
+ UART does not support modem lines for RTS/CTS hardware flow control.
+
Example:
uart@e0000000 {
compatible = "cdns,uart-r1p8";
--
2.1.1
