On Wed, May 10, 2023 at 06:22:42PM +0200, Martin Zaťovič wrote: > GPIO bitbanged Wiegand controller requires definitions of GPIO > lines to be used on top of the common Wiegand properties. Wiegand > utilizes two such lines - D0(low data line) and D1(high data line). > > Acked-by: Linus Walleij <linus.walleij@xxxxxxxxxx> > Signed-off-by: Martin Zaťovič <m.zatovic1@xxxxxxxxx> > --- > .../bindings/wiegand/wiegand-gpio.yaml | 51 +++++++++++++++++++ > MAINTAINERS | 5 ++ > 2 files changed, 56 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..df28929f6dae > --- /dev/null > +++ b/Documentation/devicetree/bindings/wiegand/wiegand-gpio.yaml > @@ -0,0 +1,51 @@ > +# 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 devicetree bindings From the previous versions, drop "devicetree bindings". > + > +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-hi-gpios: > + description: GPIO used as Wiegands data-hi line. > + maxItems: 1 > + > + data-lo-gpios: > + description: GPIO used as Wiegands data-lo line. > + maxItems: 1 > + > +required: > + - compatible > + - data-hi-gpios > + - data-lo-gpios > + > +unevaluatedProperties: false > + > +examples: > + - | > + #include <dt-bindings/gpio/gpio.h> > + > + wiegand@f00 { Also as previously pointed out dt_binding_check doesn't like this: Warning (unit_address_vs_reg): /example-0/wiegand@f00: node has a unit name, but no reg or ranges property Cheers, Conor. > + compatible = "wiegand-gpio"; > + pulse-len-us = <50>; > + interval-len-us = <2000>; > + frame-gap-us = <2000>; > + data-lo-gpios = <&gpio2 6 (GPIO_ACTIVE_HIGH|GPIO_OPEN_DRAIN)>; > + data-hi-gpios = <&gpio2 7 (GPIO_ACTIVE_HIGH|GPIO_OPEN_DRAIN)>; > + > + /* devices */ > + };
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