[PATCH 1/4] dt-bindings: iio: frequency: add adf4377 doc

[Antoniu Miclaus <antoniu.miclaus@analog.com>]

Add device tree bindings for the ADF4377 driver.

Signed-off-by: Antoniu Miclaus <antoniu.miclaus@analog.com>
---
 .../bindings/iio/frequency/adi,adf4377.yaml   | 78 +++++++++++++++++++
 1 file changed, 78 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/iio/frequency/adi,adf4377.yaml

diff --git a/Documentation/devicetree/bindings/iio/frequency/adi,adf4377.yaml b/Documentation/devicetree/bindings/iio/frequency/adi,adf4377.yaml
new file mode 100644
index 000000000000..3f5c83e03bb9
--- /dev/null
+++ b/Documentation/devicetree/bindings/iio/frequency/adi,adf4377.yaml
@@ -0,0 +1,78 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/iio/frequency/adi,adf4377.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: ADF4377 Microwave Wideband Synthesizer with Integrated VCO
+
+maintainers:
+  - Antoniu Miclaus <antoniu.miclaus@analog.com>
+  - Dragos Bogdan <dragos.bogdan@analog.com>
+
+description: |
+   The ADF4377 is a high performance, ultralow jitter, dual output integer-N
+   phased locked loop (PLL) with integrated voltage controlled oscillator (VCO)
+   ideally suited for data converter and mixed signal front end (MxFE) clock
+   applications.
+
+   https://www.analog.com/en/products/adf4377.html
+
+properties:
+  compatible:
+    enum:
+      - adi,adf4377
+      - adi,adf4378
+
+  reg:
+    maxItems: 1
+
+  spi-max-frequency:
+    maximum: 10000000
+
+  clocks:
+    maxItems: 1
+
+  clock-names:
+    description:
+      External clock that provides reference input frequency.
+    items:
+      - const: ref_in
+
+  ce-en-gpios:
+    description:
+      Gpio that controls the Chip Enable Pin.
+    maxItems: 1
+
+  enclk1-gpios:
+    description:
+      Gpio that controls the Enable Clock 1 Output Buffer Pin.
+    maxItems: 1
+
+  enclk2-gpios:
+    description:
+      Gpio that controls the Enable Clock 2 Output Buffer Pin.
+    maxItems: 1
+
+required:
+  - compatible
+  - reg
+  - clocks
+  - clock-names
+
+additionalProperties: false
+
+examples:
+  - |
+    spi {
+        #address-cells = <1>;
+        #size-cells = <0>;
+        frequency@0 {
+            compatible = "adi,adf4377";
+            reg = <0>;
+            spi-max-frequency = <10000000>;
+            clocks = <&adf4377_ref_in>;
+            clock-names = "ref_in";
+        };
+    };
+...
-- 
2.38.1