[PATCH v4 4/9] dt-bindings: serial: Document the graph port

Manivannan Sadhasivam via B4 Relay
2026-01-12T16:28:33Z

From: Manivannan Sadhasivam <manivannan.sadhasivam@oss.qualcomm.com>

A serial controller could be connected to an external connector like PCIe
M.2 for controlling the serial interface of the card. Hence, document the
OF graph port.

Signed-off-by: Manivannan Sadhasivam <manivannan.sadhasivam@oss.qualcomm.com>
---
Documentation/devicetree/bindings/serial/serial.yaml | 3 +++
1 file changed, 3 insertions(+)

diff --git a/Documentation/devicetree/bindings/serial/serial.yaml b/Documentation/devicetree/bindings/serial/serial.yaml
index 6aa9cfae417b..96eb1de8771e 100644
--- a/Documentation/devicetree/bindings/serial/serial.yaml
+++ b/Documentation/devicetree/bindings/serial/serial.yaml
@@ -87,6 +87,9 @@ properties:
description:
TX FIFO threshold configuration (in bytes).

+ port:
+ $ref: /schemas/graph.yaml#/properties/port
+
patternProperties:
"^(bluetooth|bluetooth-gnss|embedded-controller|gnss|gps|mcu|onewire)$":
if:

--
2.48.1