[PATCH 1/2] dt-bindings: Add optional gpio property to uartps node to support rs485

[Manikanta Guntupalli]

Add optional gpio property to uartps node and add reference to rs485.yaml

Signed-off-by: Manikanta Guntupalli <manikanta.guntupalli at amd.com>
---
 Documentation/devicetree/bindings/serial/cdns,uart.yaml | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/Documentation/devicetree/bindings/serial/cdns,uart.yaml b/Documentation/devicetree/bindings/serial/cdns,uart.yaml
index a8b323d7bf94..34ed0d80b923 100644
--- a/Documentation/devicetree/bindings/serial/cdns,uart.yaml
+++ b/Documentation/devicetree/bindings/serial/cdns,uart.yaml
@@ -46,6 +46,10 @@ properties:
   power-domains:
     maxItems: 1
 
+  txrx-gpios:
+    description: Optional GPIO to switch transmit and receive modes via pmod.
+    maxItems: 1
+
 required:
   - compatible
   - reg
@@ -55,6 +59,7 @@ required:
 
 allOf:
   - $ref: serial.yaml#
+  - $ref: rs485.yaml#
   - if:
       properties:
         compatible:
-- 
2.25.1