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Date: Mon, 1 Apr 2019 11:38:07 -0300 From: Marcelo Schmitt <marcelo.schmitt1@...il.com> To: lars@...afoo.de, Michael.Hennerich@...log.com, stefan.popa@...log.com, jic23@...nel.org, knaack.h@....de, pmeerw@...erw.net, gregkh@...uxfoundation.org Cc: linux-iio@...r.kernel.org, devel@...verdev.osuosl.org, linux-kernel@...r.kernel.org, kernel-usp@...glegroups.com 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@...il.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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