From: Geert Uytterhoeven <geert+renesas@glider.be>
Date: Wed, 25 Mar 2020 09:54:42 +0000 (+0100)
Subject: dt-bindings: serial: Document serialN aliases
X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=a5427e4e38a22f7e0ced0b7bd6cb16873a2644b7;p=linux.git

dt-bindings: serial: Document serialN aliases

Document the format of aliases referring to UARTs.

Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Rob Herring <robh@kernel.org>
---

diff --git a/Documentation/devicetree/bindings/serial/serial.yaml b/Documentation/devicetree/bindings/serial/serial.yaml
index dd97ecd1a7fe8..53204d90d0c74 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:
   $nodename:
     pattern: "^serial(@.*)?$"