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Subject[PATCH 4/4] staging: iio: ad9832: add devicetree documentation
Add a devicetree documentation for the ad9832 direct digital
synthesizer, waveform generator.

Signed-off-by: Marcelo Schmitt <marcelo.schmitt1@gmail.com>
---
.../bindings/iio/frequency/ad9832.txt | 26 +++++++++++++++++++
1 file changed, 26 insertions(+)
create mode 100644 Documentation/devicetree/bindings/iio/frequency/ad9832.txt

diff --git a/Documentation/devicetree/bindings/iio/frequency/ad9832.txt b/Documentation/devicetree/bindings/iio/frequency/ad9832.txt
new file mode 100644
index 000000000000..6a35fdff5a48
--- /dev/null
+++ b/Documentation/devicetree/bindings/iio/frequency/ad9832.txt
@@ -0,0 +1,26 @@
+Analog Devices AD9832 Direct Digital Synthesizer, Waveform Generator
+
+Data sheet:
+https://www.analog.com/media/en/technical-documentation/data-sheets/AD9832.pdf
+
+Required properties:
+ - compatible : Must be "adi,ad9832"
+ - reg : SPI chip select number for the device
+ - spi-max-frequency = Max SPI frequency to use (< 25000000)
+ - clocks : The clock reference for the DDS output
+ - clock-names : Must be "mclk"
+
+Optional properties:
+ - avdd-supply: Definition of the regulator used as analog supply
+ - dvdd-supply : Definition of the regulator used as digital supply
+
+Example:
+ adi9832-dds@0 {
+ compatible = "adi,ad9832";
+ reg = <0>;
+ spi-max-frequency = <25000000>;
+ clocks = <&ad9832_mclk>;
+ clock-names = "mclk";
+ avdd-suppy = <&avdd>;
+ dvdd-suppy = <&dvdd>;
+ };
--
2.20.1
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