dt-bindings: iio: Add bindings for sx9310 sensor

# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)

%YAML 1.2

---

$id: http://devicetree.org/schemas/iio/proximity/semtech,sx9310.yaml#

$schema: http://devicetree.org/meta-schemas/core.yaml#

title: Semtech's SX9310 capacitive proximity sensor

maintainers:

  - Daniel Campello <campello@chromium.org>

description: |

  Semtech's SX9310/SX9311 capacitive proximity/button solution.

  Specifications about the devices can be found at:

  https://www.semtech.com/products/smart-sensing/sar-sensors/sx9310

properties:

  compatible:

    enum:

      - semtech,sx9310

      - semtech,sx9311

  reg:

    maxItems: 1

  interrupts:

    description:

      The sole interrupt generated by the device used to announce the

      preceding reading request has finished and that data is

      available or that a close/far proximity event has happened.

    maxItems: 1

  vdd-supply:

    description: Main power supply

  svdd-supply:

    description: Host interface power supply

  "#io-channel-cells":

    const: 1

required:

  - compatible

  - reg

  - "#io-channel-cells"

additionalProperties: false

examples:

  - |

    #include <dt-bindings/interrupt-controller/irq.h>

    i2c {

      #address-cells = <1>;

      #size-cells = <0>;

      proximity@28 {

        compatible = "semtech,sx9310";

        reg = <0x28>;

        interrupt-parent = <&pio>;

        interrupts = <5 IRQ_TYPE_LEVEL_LOW 5>;

        vdd-supply = <&pp3300_a>;

        svdd-supply = <&pp1800_prox>;

        #io-channel-cells = <1>;

      };

    };