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>
This commit is contained in:
Akash Asthana 2020-05-27 11:57:44 +05:30 • committed by Rob Herring
commit 41d455bda2