[PATCH V8 1/3] dt-bindings: Add reference to rs485.yaml

[Manikanta Guntupalli]

Xilinx/AMD Kria SOM KD240 board has a rs485 compatible peripheral.
Update the binding to have rs485 support.

Acked-by: Conor Dooley <conor.dooley at microchip.com>
Signed-off-by: Manikanta Guntupalli <manikanta.guntupalli at amd.com>
---
Changes for V2:
Modify optional gpio name to xlnx,phy-ctrl-gpios.
Update commit description.

Changes for V3:
Modify optional gpio name to rts-gpios.
Update commit description.

Changes for V4:
Update rts-gpios description.

Changes for V5:
Remove rts-gpios description.
Update commit message and description.

Changes for V6:
Update commit description.

Changes for V7:
Update commit description.

Changes for V8:
None.
---
 Documentation/devicetree/bindings/serial/cdns,uart.yaml | 1 +
 1 file changed, 1 insertion(+)

diff --git a/Documentation/devicetree/bindings/serial/cdns,uart.yaml b/Documentation/devicetree/bindings/serial/cdns,uart.yaml
index e35ad1109efc..2129247d7c81 100644
--- a/Documentation/devicetree/bindings/serial/cdns,uart.yaml
+++ b/Documentation/devicetree/bindings/serial/cdns,uart.yaml
@@ -55,6 +55,7 @@ required:
 
 allOf:
   - $ref: serial.yaml#
+  - $ref: rs485.yaml#
   - if:
       properties:
         compatible:
-- 
2.25.1