[v4 2/2] dt-bindings: iio: gyro: Add DT binding doc for ADXRS290

[Nishant Malpani <nish.malpani25@gmail.com>]

Add devicetree binding document for ADXRS290, a dual-axis MEMS gyroscope.

Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Nishant Malpani <nish.malpani25@gmail.com>
---

No changes in v4.

No changes in v3.

Changes in v2:
  - use 'const' instead of 'enum' while setting the compatible string
    since only a single item is expected
  - add 'additionalProperties: false'
---
 .../bindings/iio/gyroscope/adi,adxrs290.yaml  | 53 +++++++++++++++++++
 MAINTAINERS                                   |  1 +
 2 files changed, 54 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/iio/gyroscope/adi,adxrs290.yaml

diff --git a/Documentation/devicetree/bindings/iio/gyroscope/adi,adxrs290.yaml b/Documentation/devicetree/bindings/iio/gyroscope/adi,adxrs290.yaml
new file mode 100644
index 000000000000..61adb2c2454b
--- /dev/null
+++ b/Documentation/devicetree/bindings/iio/gyroscope/adi,adxrs290.yaml
@@ -0,0 +1,53 @@
+# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
+# Copyright 2020 Analog Devices Inc.
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/iio/gyroscope/adi,adxrs290.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Analog Devices ADXRS290 Dual-Axis MEMS Gyroscope
+
+maintainers:
+  - Nishant Malpani <nish.malpani25@gmail.com>
+
+description: |
+  Bindings for the Analog Devices ADXRS290 dual-axis MEMS gyroscope device.
+  https://www.analog.com/media/en/technical-documentation/data-sheets/ADXRS290.pdf
+
+properties:
+  compatible:
+    const: adi,adxrs290
+
+  reg:
+    maxItems: 1
+
+  spi-max-frequency:
+    maximum: 5000000
+
+  spi-cpol: true
+
+  spi-cpha: true
+
+required:
+  - compatible
+  - reg
+  - spi-max-frequency
+  - spi-cpol
+  - spi-cpha
+
+additionalProperties: false
+
+examples:
+  - |
+    spi {
+        #address-cells = <1>;
+        #size-cells = <0>;
+        gyro@0 {
+                   compatible = "adi,adxrs290";
+                   reg = <0>;
+                   spi-max-frequency = <5000000>;
+                   spi-cpol;
+                   spi-cpha;
+        };
+    };
+...
diff --git a/MAINTAINERS b/MAINTAINERS
index 71ae9b184179..bb2cd4ee140c 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -1103,6 +1103,7 @@ M:	Nishant Malpani <nish.malpani25@gmail.com>
 L:	linux-iio@vger.kernel.org
 S:	Supported
 F:	drivers/iio/gyro/adxrs290.c
+F:	Documentation/devicetree/bindings/iio/gyroscope/adi,adxrs290.yaml
 
 ANALOG DEVICES INC ASOC CODEC DRIVERS
 M:	Lars-Peter Clausen <lars@metafoo.de>
-- 
2.20.1