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-rw-r--r--Documentation/devicetree/bindings/serial/8250.txt2
1 files changed, 2 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/serial/8250.txt b/Documentation/devicetree/bindings/serial/8250.txt
index 936ab5b87324..f86bb06c39e9 100644
--- a/Documentation/devicetree/bindings/serial/8250.txt
+++ b/Documentation/devicetree/bindings/serial/8250.txt
@@ -42,6 +42,8 @@ Optional properties:
- auto-flow-control: one way to enable automatic flow control support. The
driver is allowed to detect support for the capability even without this
property.
+- tx-threshold: Specify the TX FIFO low water indication for parts with
+ programmable TX FIFO thresholds.
Note:
* fsl,ns16550: