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SubjectRe: [PATCHv2 1/4] dt-bindings: wiegand: add Wiegand controller common properties
On Thu, Feb 02, 2023 at 03:33:02PM +0100, Martin Zaťovič wrote:
> Weigand bus is defined by a Wiegand controller node. This node
> can contain one or more device nodes for devices attached to
> the controller(it is advised to only connect one device as Wiegand
> is a point-to-point bus).
>
> Wiegand controller needs to specify several attributes such as
> the pulse length in order to function properly. These attributes
> are documented here.
>
> Signed-off-by: Martin Zaťovič <m.zatovic1@gmail.com>
> ---
> .../bindings/wiegand/wiegand-controller.yaml | 50 +++++++++++++++++++
> MAINTAINERS | 5 ++
> 2 files changed, 55 insertions(+)
> create mode 100644 Documentation/devicetree/bindings/wiegand/wiegand-controller.yaml
>
> diff --git a/Documentation/devicetree/bindings/wiegand/wiegand-controller.yaml b/Documentation/devicetree/bindings/wiegand/wiegand-controller.yaml
> new file mode 100644
> index 000000000000..fed90e01e56f
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/wiegand/wiegand-controller.yaml
> @@ -0,0 +1,50 @@
> +# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
> +%YAML 1.2
> +---
> +$id: http://devicetree.org/schemas/wiegand/wiegand-controller.yaml#
> +$schema: http://devicetree.org/meta-schemas/core.yaml#
> +
> +title: Wiegand Generic Controller Common Properties
> +
> +maintainers:
> + - Martin Zaťovič <martin.zatovic@tbs-biometrics.com>
> +
> +description:
> + Wiegand busses can be described with a node for the Wiegand controller device
> + and a set of child nodes for each SPI slave on the bus.
> +
> +properties:
> + $nodename:
> + pattern: "^wiegand(@.*|-[0-9a-f])?$"
> +
> + pulse-len-us:
> + description: |
> + Length of the low pulse in microseconds.
> +
> + interval-len-us:
> + description: |
> + Length of a whole bit (both the pulse and the high phase) in microseconds.
> +
> + frame-gap-us:
> + description: |
> + Length of the last bit of a frame (both the pulse and the high phase) in
> + microseconds.
> +
> +required:
> + - compatible
> + - pulse-len-us
> + - interval-len-us
> + - frame-gap-us
> +
> +additionalProperties: true
> +
> +examples:
> + - |
> + wiegand@f00 {
> + compatible = "wiegand-foo";

You've got a real example in the bitbanged schema, just drop the fake
one here. You can put about anything in here because it is not getting
validated.

> + pulse-len-us = <50>;
> + interval-len-us = <2000>;
> + frame-gap-us = <2000>;
> +
> + /* devices */
> + };
> diff --git a/MAINTAINERS b/MAINTAINERS
> index 7f86d02cb427..db9624d93af0 100644
> --- a/MAINTAINERS
> +++ b/MAINTAINERS
> @@ -22428,6 +22428,11 @@ L: linux-input@vger.kernel.org
> S: Maintained
> F: drivers/hid/hid-wiimote*
>
> +WIEGAND BUS DRIVER
> +M: Martin Zaťovič <m.zatovic1@gmail.com>
> +S: Maintained
> +F: Documentation/devicetree/bindings/wiegand/wiegand-controller.yaml
> +
> WILOCITY WIL6210 WIRELESS DRIVER
> L: linux-wireless@vger.kernel.org
> S: Orphan
> --
> 2.39.1
>

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