GPIO bitbanged Wiegand controller requires definitions of GPIO lines to be used on top of the common Wiegand properties. Wiegand utilizes two such lines - DATA0(low data line) and DATA1(high data line). Acked-by: Linus Walleij <linus.walleij@xxxxxxxxxx> Signed-off-by: Martin Zaťovič <m.zatovic1@xxxxxxxxx> --- .../bindings/wiegand/wiegand-gpio.yaml | 46 +++++++++++++++++++ MAINTAINERS | 5 ++ 2 files changed, 51 insertions(+) create mode 100644 Documentation/devicetree/bindings/wiegand/wiegand-gpio.yaml diff --git a/Documentation/devicetree/bindings/wiegand/wiegand-gpio.yaml b/Documentation/devicetree/bindings/wiegand/wiegand-gpio.yaml new file mode 100644 index 000000000000..cf2cb938de02 --- /dev/null +++ b/Documentation/devicetree/bindings/wiegand/wiegand-gpio.yaml @@ -0,0 +1,46 @@ +# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/wiegand/wiegand-gpio.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: GPIO bitbanged Wiegand interface properties + +maintainers: + - Martin Zaťovič <m.zatovic1@xxxxxxxxx> + +description: + This represents the GPIO lines used for bit-banged Wiegand on dedicated GPIO + lines. + +allOf: + - $ref: /schemas/wiegand/wiegand-controller.yaml# + +properties: + compatible: + const: wiegand-gpio + + data-gpios: + description: GPIOs used as Wiegand data lines, DATA0 and DATA1 respectivelly. + maxItems: 2 + +required: + - compatible + - data-gpios + +unevaluatedProperties: false + +examples: + - | + #include <dt-bindings/gpio/gpio.h> + + wiegand@f00 { + compatible = "wiegand-gpio"; + pulse-len-us = <50>; + interval-len-us = <2000>; + frame-gap-us = <2000>; + data-gpios = <&gpio2 6 (GPIO_ACTIVE_HIGH|GPIO_OPEN_DRAIN)>, + <&gpio2 7 (GPIO_ACTIVE_HIGH|GPIO_OPEN_DRAIN)>; + + /* devices */ + }; diff --git a/MAINTAINERS b/MAINTAINERS index 0afcc88a38d2..fb158e74ca4b 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -22929,6 +22929,11 @@ F: Documentation/devicetree/bindings/wiegand/wiegand-controller.yaml F: drivers/wiegand/wiegand.c F: include/linux/wiegand.h +WIEGAND GPIO BITBANG DRIVER +M: Martin Zaťovič <m.zatovic1@xxxxxxxxx> +S: Maintained +F: Documentation/devicetree/bindings/wiegand/wiegand-gpio.yaml + WILOCITY WIL6210 WIRELESS DRIVER L: linux-wireless@xxxxxxxxxxxxxxx S: Orphan -- 2.40.1
