Document the format of aliases referring to UARTs.
Signed-off-by: Geert Uytterhoeven <geert+renesas@xxxxxxxxx>
---
Documentation/devicetree/bindings/serial/serial.yaml | 4 ++++
1 file changed, 4 insertions(+)
diff --git a/Documentation/devicetree/bindings/serial/serial.yaml b/Documentation/devicetree/bindings/serial/serial.yaml
index dd97ecd1a7fe8ddd..53204d90d0c74ebd 100644
--- a/Documentation/devicetree/bindings/serial/serial.yaml
+++ b/Documentation/devicetree/bindings/serial/serial.yaml
@@ -15,6 +15,10 @@ description:
device tree. Whether these properties apply to a particular device depends
on the DT bindings for the actual device.
+ Each enabled UART may have an optional "serialN" alias in the "aliases" node,
+ where N is the port number (non-negative decimal integer) as printed on the
+ label next to the physical port.
+
properties:
$nodename:
pattern: "^serial(@.*)?$"
--
2.17.1
