[PATCH v5 1/6] dt-bindings: serial: Add binding for rs485 receiver enable GPIO

[Rob Herring]

On Fri, 26 Jan 2024 18:27:42 +0100, Farouk Bouabid wrote:
> From: Heiko Stuebner <heiko.stuebner at cherry.de>
> 
> RS485 has two signals to control transmissions "driver enable" (DE) and
> "receiver enable" (RE). DE is already handled via the uarts RTS signal
> while the RE signal on most implementations doesn't get handled
> separately at all.
> 
> As there still will be cases where this is needed though add a gpio
> property for declaring this signal pin.
> 
> Signed-off-by: Heiko Stuebner <heiko.stuebner at cherry.de>
> Signed-off-by: Farouk Bouabid <farouk.bouabid at theobroma-systems.com>
> ---
>  Documentation/devicetree/bindings/serial/rs485.yaml | 4 ++++
>  1 file changed, 4 insertions(+)
> 

Reviewed-by: Rob Herring <robh at kernel.org>