dt-bindings: iio: light: ROHM BH1745

Add ROHM BH1745 - 4 channel I2C colour sensor's dt-bindings.
Signed-off-by: Mudit Sharma <muditsharma.info@gmail.com>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Link: https://patch.msgid.link/20240718220208.331942-1-muditsharma.info@gmail.comSigned-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>

Documentation/devicetree/bindings/iio/light/rohm,bh1745.yaml

+# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/iio/light/rohm,bh1745.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: ROHM BH1745 colour sensor
+
+maintainers:
+  - Mudit Sharma <muditsharma.info@gmail.com>
+
+description:
+  BH1745 is an I2C colour sensor with red, green, blue and clear
+  channels. It has a programmable active low interrupt pin.
+  Interrupt occurs when the signal from the selected interrupt
+  source channel crosses set interrupt threshold high/low level.
+
+properties:
+  compatible:
+    const: rohm,bh1745
+
+  reg:
+    maxItems: 1
+
+  interrupts:
+    maxItems: 1
+
+  vdd-supply: true
+
+required:
+  - compatible
+  - reg
+  - vdd-supply
+
+additionalProperties: false
+
+examples:
+  - |
+    #include <dt-bindings/interrupt-controller/irq.h>
+    i2c {
+        #address-cells = <1>;
+        #size-cells = <0>;
+
+        colour-sensor@38 {
+            compatible = "rohm,bh1745";
+            reg = <0x38>;
+            interrupt-parent = <&gpio>;
+            interrupts = <19 IRQ_TYPE_LEVEL_LOW>;
+            vdd-supply = <&vdd>;
+        };
+    };
+
+...