linux-kernel - [PATCH 2/2] dt-bindings: serial: Add st,swap to stm32-usart

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Date:   Sat, 29 Feb 2020 17:05:07 +0100
From:   Martin Devera <devik@...labs.cz>
To:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Rob Herring <robh+dt@...nel.org>,
        Mark Rutland <mark.rutland@....com>,
        Maxime Coquelin <mcoquelin.stm32@...il.com>,
        Alexandre Torgue <alexandre.torgue@...com>,
        linux-serial@...r.kernel.org (open list:SERIAL DRIVERS),
        devicetree@...r.kernel.org (open list:OPEN FIRMWARE AND FLATTENED
        DEVICE TREE BINDINGS),
        linux-arm-kernel@...ts.infradead.org (moderated list:ARM/STM32
        ARCHITECTURE), linux-kernel@...r.kernel.org (open list)
Cc:     Martin Devera <devik@...labs.cz>
Subject: [PATCH 2/2] dt-bindings: serial: Add st,swap to stm32-usart

Add new st,swap property to allow for RX & TX pin swapping.

Signed-off-by: Martin Devera <devik@...labs.cz>
---
 Documentation/devicetree/bindings/serial/st,stm32-usart.txt | 1 +
 1 file changed, 1 insertion(+)

diff --git a/Documentation/devicetree/bindings/serial/st,stm32-usart.txt b/Documentation/devicetree/bindings/serial/st,stm32-usart.txt
index 08b499045a38..cbfa1f9f4b17 100644
--- a/Documentation/devicetree/bindings/serial/st,stm32-usart.txt
+++ b/Documentation/devicetree/bindings/serial/st,stm32-usart.txt
@@ -24,6 +24,7 @@ Optional properties:
 - pinctrl-n: Phandle(s) pointing to pin configuration nodes.
   For Pinctrl properties see ../pinctrl/pinctrl-bindings.txt
 - st,hw-flow-ctrl: bool flag to enable hardware flow control.
+- st,swap: bool flag to swap RX and TX pins.
 - rs485-rts-delay, rs485-rx-during-tx, rs485-rts-active-low,
   linux,rs485-enabled-at-boot-time: see rs485.txt.
 - dmas: phandle(s) to DMA controller node(s). Refer to stm32-dma.txt
-- 
2.11.0