dt-bindings: iio: chemical: Document senseair,sunrise CO2 sensor

Add documentation for the Senseair Sunrise 006-0-0007 CO2 NDIR sensor.
Signed-off-by: Jacopo Mondi <jacopo@jmondi.org>
Reviewed-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/20210920135413.140310-2-jacopo+renesas@jmondi.orgSigned-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>

Documentation/devicetree/bindings/iio/chemical/senseair,sunrise.yaml

+# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/iio/chemical/senseair,sunrise.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Senseair Sunrise 006-0-0007 CO2 Sensor
+
+maintainers:
+  - Jacopo Mondi <jacopo@jmondi.org>
+
+description: |
+  Senseair Sunrise 006-0-0007 is a NDIR CO2 sensor. It supports I2C or UART buses
+  for communications and control.
+
+  Datasheets:
+    https://rmtplusstoragesenseair.blob.core.windows.net/docs/Dev/publicerat/PSP11704.pdf
+    https://rmtplusstoragesenseair.blob.core.windows.net/docs/Dev/publicerat/PSH11649.pdf
+    https://rmtplusstoragesenseair.blob.core.windows.net/docs/Dev/publicerat/TDE5531.pdf
+    https://rmtplusstoragesenseair.blob.core.windows.net/docs/Market/publicerat/TDE7318.pdf
+
+properties:
+  compatible:
+    const: senseair,sunrise-006-0-0007
+
+  reg:
+    maxItems: 1
+
+  ndry-gpios:
+    maxItems: 1
+    description:
+      Phandle to the GPIO line connected to the nDRY pin. Typically active low.
+
+  en-gpios:
+    maxItems: 1
+    description:
+      Phandle to the GPIO line connected to the EN pin. Typically active high.
+
+required:
+  - compatible
+  - reg
+
+additionalProperties: false
+
+examples:
+  - |
+    i2c {
+      #address-cells = <1>;
+      #size-cells = <0>;
+
+      co2-sensor@68 {
+        compatible = "senseair,sunrise-006-0-0007";
+        reg = <0x68>;
+      };
+    };

Documentation/devicetree/bindings/vendor-prefixes.yaml

@@ -1018,6 +1018,8 @@ patternProperties:
     description: Shenzhen SEI Robotics Co., Ltd
   "^semtech,.*":
     description: Semtech Corporation
+  "^senseair,.*":
+    description: Senseair AB
   "^sensirion,.*":
     description: Sensirion AG
   "^sensortek,.*":