On 04/02, Alexandru Ardelean wrote: > On Mon, Apr 1, 2019 at 5:38 PM Marcelo Schmitt > <marcelo.schmitt1@xxxxxxxxx> wrote: > > > > Add a devicetree documentation for the ad9832 direct digital > > synthesizer, waveform generator. > > > > Signed-off-by: Marcelo Schmitt <marcelo.schmitt1@xxxxxxxxx> > > --- > > .../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" > > It's always a good idea to reference other base dt docs. > For SPI you could: > > ``` > For more information on SPI properties, please consult > Documentation/devicetree/bindings/spi/spi-bus.txt > ``` > > For clock: > ``` > For more information on clock bindings properties, please consult > Documentation/devicetree/bindings/clock/clock-bindings.txt > ``` > > For regulator: > ``` > For more information on regulator bindings properties, please consult > Documentation/devicetree/bindings/regulator/regulator.txt > ``` Thanks for the advice. I'll have a look at them. > > > + > > +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 > > _______________________________________________ devel mailing list devel@xxxxxxxxxxxxxxxxxxxxxx http://driverdev.linuxdriverproject.org/mailman/listinfo/driverdev-devel
