[PATCH v4 3/3] dt-bindings: iio: chemical: pms7003: add device tree support

[Tomasz Duszynski <tduszyns@xxxxxxxxx>]

Add device tree support for Plantower PMS7003 particulate matter sensor.

Signed-off-by: Tomasz Duszynski <tduszyns@xxxxxxxxx>
---
 .../iio/chemical/plantower,pms7003.txt        | 20 +++++++++++++++++++
 1 file changed, 20 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/iio/chemical/plantower,pms7003.txt

diff --git a/Documentation/devicetree/bindings/iio/chemical/plantower,pms7003.txt b/Documentation/devicetree/bindings/iio/chemical/plantower,pms7003.txt
new file mode 100644
index 000000000000..7b5f06f324c8
--- /dev/null
+++ b/Documentation/devicetree/bindings/iio/chemical/plantower,pms7003.txt
@@ -0,0 +1,20 @@
+* Plantower PMS7003 particulate matter sensor
+
+Required properties:
+- compatible: must be "plantower,pms7003"
+- vcc-supply: phandle to the regulator that provides power to the sensor
+
+Optional properties:
+- plantower,set-gpios: phandle to the GPIO connected to the SET line
+- reset-gpios: phandle to the GPIO connected to the RESET line
+
+Refer to serial/slave-device.txt for generic serial attached device bindings.
+
+Example:
+
+&uart0 {
+	air-pollution-sensor {
+		compatible = "plantower,pms7003";
+		vcc-supply = <&reg_vcc5v0>;
+	};
+};
-- 
2.20.1