[PATCH v2 1/4] dt-bindings: serial: add RX and TX FIFO properties

Erwan Le Ray
2021-04-13T17:40:49Z

Add two optional DT properties to configure RX and TX FIFO thresholds:
- rx-threshold
- tx-threshold

Signed-off-by: Erwan Le Ray <erwan.leray@foss.st.com>

diff --git a/Documentation/devicetree/bindings/serial/serial.yaml b/Documentation/devicetree/bindings/serial/serial.yaml
index 65e75d040521..f368d58e8086 100644
--- a/Documentation/devicetree/bindings/serial/serial.yaml
+++ b/Documentation/devicetree/bindings/serial/serial.yaml
@@ -75,6 +75,16 @@ properties:
type: boolean
description: CTS and RTS pins are swapped.

+ rx-threshold:
+ $ref: /schemas/types.yaml#/definitions/uint32
+ description:
+ RX FIFO threshold configuration (in bytes).
+
+ tx-threshold:
+ $ref: /schemas/types.yaml#/definitions/uint32
+ description:
+ TX FIFO threshold configuration (in bytes).
+
if:
required:
- uart-has-rtscts
--
2.17.1