On Tue, Nov 21, 2023 at 09:28:12AM +0100, Tomas Paukrt wrote: > Add an option to enable the RS485 mode at boot time based on > the state of a GPIO pin (DIP switch or configuration jumper). > The GPIO is defined by the device tree property "linux,rs485-mode-gpio". > > Signed-off-by: Tomas Paukrt <tomaspaukrt@xxxxxxxx> > --- > Documentation/devicetree/bindings/serial/rs485.yaml | 4 ++++ > 1 file changed, 4 insertions(+) > > diff --git a/Documentation/devicetree/bindings/serial/rs485.yaml b/Documentation/devicetree/bindings/serial/rs485.yaml > index 9418fd6..7a72f37 100644 > --- a/Documentation/devicetree/bindings/serial/rs485.yaml > +++ b/Documentation/devicetree/bindings/serial/rs485.yaml > @@ -47,6 +47,10 @@ properties: > later with proper ioctl. > $ref: /schemas/types.yaml#/definitions/flag > > + linux,rs485-mode-gpio: This has little to do with Linux, so no need for linux prefix. The preferred form is always plural '-gpios'. > + description: GPIO pin to enable RS485 mode at boot time. > + maxItems: 1 > + > rs485-rx-during-tx: > description: enables the receiving of data even while sending data. > $ref: /schemas/types.yaml#/definitions/flag > -- > 2.7.4 >
