On Fri Jul 9, 2021 at 4:15 AM EDT, Sa, Nuno wrote: > > > > -----Original Message----- > > From: Liam Beguin <liambeguin@xxxxxxxxx> > > Sent: Friday, July 9, 2021 1:56 AM > > To: liambeguin@xxxxxxxxx; lars@xxxxxxxxxx; Hennerich, Michael > > <Michael.Hennerich@xxxxxxxxxx>; jic23@xxxxxxxxxx; charles- > > antoine.couret@xxxxxxxxxxxxx > > Cc: linux-kernel@xxxxxxxxxxxxxxx; linux-iio@xxxxxxxxxxxxxxx; > > devicetree@xxxxxxxxxxxxxxx; robh+dt@xxxxxxxxxx > > Subject: [PATCH v1 4/4] dt-bindings: iio: adc: ad7949: add > > adi,reference-source > > > > [External] > > > > From: Liam Beguin <lvb@xxxxxxxxxx> > > > > Add bindings documentation for the adi,reference-source property. > > This property is required to properly configure the ADC sample request > > based on which reference source should be used for the calculation. > > > > Signed-off-by: Liam Beguin <lvb@xxxxxxxxxx> > > --- > > .../bindings/iio/adc/adi,ad7949.yaml | 22 +++++++++++++++++++ > > 1 file changed, 22 insertions(+) > > > > diff --git > > a/Documentation/devicetree/bindings/iio/adc/adi,ad7949.yaml > > b/Documentation/devicetree/bindings/iio/adc/adi,ad7949.yaml > > index 9b56bd4d5510..3f4629281cc8 100644 > > --- a/Documentation/devicetree/bindings/iio/adc/adi,ad7949.yaml > > +++ b/Documentation/devicetree/bindings/iio/adc/adi,ad7949.yaml > > @@ -35,6 +35,28 @@ properties: > > "#io-channel-cells": > > const: 1 > > > > + adi,reference-select: > > + allOf: > > + - $ref: /schemas/types.yaml#/definitions/uint32 > > + - enum: [0, 1, 2, 3, 6, 7] > > + > > + default: 7 > > + description: | > > + Select the reference voltage source to use when converting > > samples. > > + Acceptable values are: > > + - 0: Internal reference and temperature sensor enabled. > > + Vref=2.5V, buffered output > > + - 1: Internal reference and temperature sensor enabled. > > + Vref=4.096V, buffered output > > + - 2: Use external reference, temperature sensor enabled. > > + Internal buffer disabled > > + - 3: Use external reference, internal buffer and temperature > > sensor > > + enabled. > > + - 6: Use external reference, internal buffer and temperature > > sensor > > + disabled. > > + - 7: Use external reference, internal buffer enabled. > > + Internal reference and temperature sensor disabled. > > I think typically the description comes first. I also don't think you > need the 'allOf'(not even sure if it will pass the binding check)... > Just have '$ref' and 'enum' on the same level. > I realize I misread your comment on the order of the description. I'll move it at the top of the binding definition. Liam > - Nuno Sá > > > required: > > - compatible > > - reg > > -- > > 2.30.1.489.g328c10930387
