bindings: iio: pressure: Add documentation for dlh driver

Add a device tree binding documentation for DLH series pressure
sensors.
Signed-off-by: Tomislav Denis <tomislav.denis@avl.com>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>

Documentation/devicetree/bindings/iio/pressure/asc,dlhl60d.yaml

+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/iio/pressure/asc,dlhl60d.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: All Sensors DLH series low voltage digital pressure sensors
+
+maintainers:
+  - Tomislav Denis <tomislav.denis@avl.com>
+
+description: |
+  Bindings for the All Sensors DLH series pressure sensors.
+
+  Specifications about the sensors can be found at:
+    http://www.allsensors.com/cad/DS-0355_Rev_B.PDF
+
+properties:
+  compatible:
+    enum:
+      - asc,dlhl60d
+      - asc,dlhl60g
+
+  reg:
+    description: I2C device address
+    maxItems: 1
+
+  interrupts:
+    description: interrupt mapping for EOC(data ready) pin
+    maxItems: 1
+
+required:
+  - compatible
+  - reg
+
+examples:
+  - |
+    #include <dt-bindings/interrupt-controller/irq.h>
+
+    i2c0 {
+        #address-cells = <1>;
+        #size-cells = <0>;
+
+        pressure@29 {
+            compatible = "asc,dlhl60d";
+            reg = <0x29>;
+            interrupt-parent = <&gpio0>;
+            interrupts = <10 IRQ_TYPE_EDGE_RISING>;
+        };
+    };
+...

MAINTAINERS

@@ -674,6 +674,7 @@ W:	http://www.allsensors.com/
 S:	Maintained
 L:	linux-iio@vger.kernel.org
 F:	drivers/iio/pressure/dlhl60d.c
+F:	Documentation/devicetree/bindings/iio/pressure/asc,dlhl60d.yaml
 
 ALLEGRO DVT VIDEO IP CORE DRIVER
 M:	Michael Tretter <m.tretter@pengutronix.de>