From: Akash Asthana <akashast@codeaurora.org>
Date: Wed, 27 May 2020 06:27:44 +0000 (+0530)
Subject: dt-bindings: serial: Add binding for UART pin swap
X-Git-Tag: v5.8-rc1~136^2~9
X-Git-Url: https://www.infradead.org/git/?a=commitdiff_plain;h=41d455bda234a30e2948196d87ba03260f1d776d;p=users%2Fhch%2Fmisc.git

dt-bindings: serial: Add binding for UART pin swap

Add documentation to support RX-TX & CTS-RTS GPIO pin swap in HW.

Signed-off-by: Akash Asthana <akashast@codeaurora.org>
Reviewed-by: Stephen Boyd <swboyd@chromium.org>
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 53204d90d0c7..8645d0e526b4 100644
--- a/Documentation/devicetree/bindings/serial/serial.yaml
+++ b/Documentation/devicetree/bindings/serial/serial.yaml
@@ -67,6 +67,14 @@ properties:
       (wired and enabled by pinmux configuration).  This depends on both the
       UART hardware and the board wiring.
 
+  rx-tx-swap:
+    type: boolean
+    description: RX and TX pins are swapped.
+
+  cts-rts-swap:
+    type: boolean
+    description: CTS and RTS pins are swapped.
+
 if:
   required:
     - uart-has-rtscts