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

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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>
This commit is contained in:
Akash Asthana 2020-05-27 11:57:44 +05:30 committed by Rob Herring
parent add953dc47
commit 41d455bda2
1 changed files with 8 additions and 0 deletions
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8
Documentation/devicetree/bindings/serial/serial.yaml
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@ -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