dt-bindings: iio: scd30: add device binding file

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

%YAML 1.2

---

$id: http://devicetree.org/schemas/iio/chemical/sensirion,scd30.yaml#

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

title: Sensirion SCD30 carbon dioxide sensor

maintainers:

  - Tomasz Duszynski <tomasz.duszynski@octakon.com>

description: |

  Air quality sensor capable of measuring co2 concentration, temperature

  and relative humidity.

properties:

  compatible:

    enum:

      - sensirion,scd30

  reg:

    maxItems: 1

  interrupts:

    maxItems: 1

  vdd-supply: true

  sensirion,sel-gpios:

    description: GPIO connected to the SEL line

    maxItems: 1

  sensirion,pwm-gpios:

    description: GPIO connected to the PWM line

    maxItems: 1

required:

  - compatible

additionalProperties: false

examples:

  - |

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

    i2c {

      #address-cells = <1>;

      #size-cells = <0>;

      co2-sensor@61 {

        compatible = "sensirion,scd30";

        reg = <0x61>;

        vdd-supply = <&vdd>;

        interrupt-parent = <&gpio0>;

        interrupts = <0 IRQ_TYPE_LEVEL_HIGH>;

      };

    };

  - |

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

    serial {

      co2-sensor {

        compatible = "sensirion,scd30";

        vdd-supply = <&vdd>;

        interrupt-parent = <&gpio0>;

        interrupts = <0 IRQ_TYPE_LEVEL_HIGH>;

      };

    };

...

SENSIRION SCD30 CARBON DIOXIDE SENSOR DRIVER

M:	Tomasz Duszynski <tomasz.duszynski@octakon.com>

S:	Maintained

F:	Documentation/devicetree/bindings/iio/chemical/sensirion,scd30.yaml

F:	drivers/iio/chemical/scd30.h

F:	drivers/iio/chemical/scd30_core.c

F:	drivers/iio/chemical/scd30_i2c.c