dt-bindings: iio: chemical: consolidate atlas-sensor docs

* Atlas Scientific EC-SM OEM sensor

http://www.atlas-scientific.com/_files/_datasheets/_oem/EC_oem_datasheet.pdf

Required properties:

  - compatible: must be "atlas,ec-sm"

  - reg: the I2C address of the sensor

  - interrupts: the sole interrupt generated by the device

  Refer to interrupt-controller/interrupts.txt for generic interrupt client

  node bindings.

Example:

atlas@64 {

	compatible = "atlas,ec-sm";

	reg = <0x64>;

	interrupt-parent = <&gpio1>;

	interrupts = <16 2>;

};

* Atlas Scientific ORP-SM OEM sensor

https://www.atlas-scientific.com/_files/_datasheets/_oem/ORP_oem_datasheet.pdf

Required properties:

  - compatible: must be "atlas,orp-sm"

  - reg: the I2C address of the sensor

  - interrupts: the sole interrupt generated by the device

  Refer to interrupt-controller/interrupts.txt for generic interrupt client

  node bindings.

Example:

atlas@66 {

	compatible = "atlas,orp-sm";

	reg = <0x66>;

	interrupt-parent = <&gpio1>;

	interrupts = <16 2>;

};

* Atlas Scientific pH-SM OEM sensor

http://www.atlas-scientific.com/_files/_datasheets/_oem/pH_oem_datasheet.pdf

Required properties:

  - compatible: must be "atlas,ph-sm"

  - reg: the I2C address of the sensor

  - interrupts: the sole interrupt generated by the device

  Refer to interrupt-controller/interrupts.txt for generic interrupt client

  node bindings.

Example:

atlas@65 {

	compatible = "atlas,ph-sm";

	reg = <0x65>;

	interrupt-parent = <&gpio1>;

	interrupts = <16 2>;

};

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

%YAML 1.2

---

$id: http://devicetree.org/schemas/iio/chemical/atlas,sensor.yaml#

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

title: Atlas Scientific OEM sensors

maintainers:

  - Matt Ranostay <matt.ranostay@konsulko.com>

description: |

  Atlas Scientific OEM sensors connected via I2C

  Datasheets:

    http://www.atlas-scientific.com/_files/_datasheets/_oem/DO_oem_datasheet.pdf

    http://www.atlas-scientific.com/_files/_datasheets/_oem/EC_oem_datasheet.pdf

    http://www.atlas-scientific.com/_files/_datasheets/_oem/ORP_oem_datasheet.pdf

    http://www.atlas-scientific.com/_files/_datasheets/_oem/pH_oem_datasheet.pdf

properties:

  compatible:

    enum:

      - atlas,do-sm

      - atlas,ec-sm

      - atlas,orp-sm

      - atlas,ph-sm

  reg:

     maxItems: 1

  interrupts:

     maxItems: 1

required:

  - compatible

  - reg

additionalProperties: false

examples:

  - |

    i2c {

      #address-cells = <1>;

      #size-cells = <0>;

      atlas@66 {

        compatible = "atlas,orp-sm";

        reg = <0x66>;

        interrupt-parent = <&gpio1>;

        interrupts = <16 2>;

      };

    };