Hi Rob, I still have an open question below on this one. If you have a chance to take a look that would be great. Jonathan > > > diff --git a/Documentation/devicetree/bindings/iio/dac/adi,ad5755.yaml b/Documentation/devicetree/bindings/iio/dac/adi,ad5755.yaml > > > new file mode 100644 > > > index 000000000000..74edff3e8408 > > > --- /dev/null > > > +++ b/Documentation/devicetree/bindings/iio/dac/adi,ad5755.yaml > > > @@ -0,0 +1,178 @@ > > > +# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause) > > > +%YAML 1.2 > > > +--- > > > +$id: http://devicetree.org/schemas/iio/dac/adi,ad5755.yaml# > > > +$schema: http://devicetree.org/meta-schemas/core.yaml# > > > + > > > +title: Analog Devices AD5755 Multi-Channel DAC > > > + > > > +maintainers: > > > + - Sean Nyekjaer <sean.nyekjaer@xxxxxxxxx> > > > + > > > +properties: > > > + compatible: > > > + enum: > > > + - adi,ad5755 > > > + - adi,ad5755-1 > > > + - adi,ad5757 > > > + - adi,ad5735 > > > + - adi,ad5737 > > > + > > > + reg: > > > + maxItems: 1 > > > + > > > + spi-cpha: > > > + description: Either this or spi-cpol but not both. > > > + spi-cpol: true > > > + > > > + spi-max-frequency: true > > > + > > > + adi,ext-dc-dc-compenstation-resistor: > > > + $ref: /schemas/types.yaml#/definitions/flag > > > + description: > > > + Set if the hardware have an external resistor and thereby bypasses > > > + the internal compensation resistor. > > > + > > > + adi,dc-dc-phase: > > > + $ref: /schemas/types.yaml#/definitions/uint32 > > > + enum: [0, 1, 2, 3] > > > + description: | > > > + Valid values for DC DC Phase control is: > > > + 0: All dc-to-dc converters clock on the same edge. > > > + 1: Channel A and Channel B clock on the same edge, > > > + Channel C and Channel D clock on opposite edges. > > > + 2: Channel A and Channel C clock on the same edge, > > > + Channel B and Channel D clock on opposite edges. > > > + 3: Channel A, Channel B, Channel C, and Channel D > > > + clock 90 degrees out of phase from each other. > > > + > > > + adi,dc-dc-freq-hz: > > > + $ref: /schemas/types.yaml#/definitions/uint32 > > > + enum: [250000, 410000, 650000] > > > + > > > + adi,dc-dc-max-microvolt: > > > + $ref: /schemas/types.yaml#/definitions/uint32 > > > + description: > > > + Maximum allowed Vboost voltage supplied by the dc-to-dc converter. > > > + enum: [23000000, 24500000, 27000000, 29500000] > > > + > > > + "#address-cells": > > > + const: 1 > > > + > > > + "#size-cells": > > > + const: 0 > > > + > > > + "#io-channel-cells": > > > + const: 1 > > > + > > > +required: > > > + - compatible > > > + - reg > > > + > > > +additionalProperties: false > > > + > > > +patternProperties: > > > + "^(channel@)[0-7]$": > > > + type: object > > > + description: Child node to describe a channel > > > + properties: > > > + reg: > > > + maxItems: 1 > > > + > > > + adi,mode: > > > + $ref: /schemas/types.yaml#/definitions/uint32 > > > + minimum: 0 > > > + maximum: 6 > > > + description: | > > > + Valid values for DAC modes is: > > > + 0: 0 V to 5 V voltage range. > > > + 1: 0 V to 10 V voltage range. > > > + 2: Plus minus 5 V voltage range. > > > + 3: Plus minus 10 V voltage range. > > > + 4: 4 mA to 20 mA current range. > > > + 5: 0 mA to 20 mA current range. > > > + 6: 0 mA to 24 mA current range. > > > + > > > + adi,ext-current-sense-resistor: > > > + $ref: /schemas/types.yaml#/definitions/flag > > > + description: > > > + Set if the hardware has an external current sense resistor > > > + > > > + adi,enable-voltage-overrange: > > > + $ref: /schemas/types.yaml#/definitions/flag > > > + description: Enable voltage overrange > > > + > > > + adi,slew: > > > + $ref: /schemas/types.yaml#/definitions/uint32-array > > > + description: | > > > + Array of slewrate settings should contain 3 fields: > > > + 1: Should be either 0 or 1 in order to enable or disable slewrate. > > > + 2: Slew rate update frequency > > > + 3: Slew step size > > > + items: > > > + - enum: [0, 1] > > > + - enum: [64000, 32000, 16000, 8000, 4000, 2000, 1000, 500, 250, 125, 64, 32, 16, 8, 4, 0] > > > + - enum: [1, 2, 4, 16, 32, 64, 128, 256] > > > + > > > + required: > > > + - reg > > > + > > > + additionalProperties: false > > > + > > > +allOf: > > > + - $ref: '#/definitions/cpolXORcpha' > > > + > > > +definitions: > > > + cpolXORcpha: > > > > Like the other one, you can drop 'definitions'. > > As replied to the other one I can't figure out a syntax that allows me to > do that. > > Get an issues along the lines of > > ... iio/dac/ti,dac082s085.yaml: allOf:0: 'not' is not one of ['$ref', 'if', 'then', 'else'] > > (obviously that's form the other driver that does this). > > Any suggestions much appreciated! > > Thanks, > > Jonathan > > > > > > > + not: > > > + required: [spi-cpha, spi-cpol] > > > + oneOf: > > > + - required: > > > + - spi-cpha > > > + - required: > > > + - spi-cpol > > > + > > > +examples: > > > + - | > > > + #include <dt-bindings/iio/adi,ad5592r.h> > > > + spi { > > > + #address-cells = <1>; > > > + #size-cells = <0>; > > > + > > > + dac@0 { > > > + #address-cells = <1>; > > > + #size-cells = <0>; > > > + compatible = "adi,ad5755"; > > > + reg = <0>; > > > + spi-max-frequency = <1000000>; > > > + spi-cpha; > > > + adi,dc-dc-phase = <0>; > > > + adi,dc-dc-freq-hz = <410000>; > > > + adi,dc-dc-max-microvolt = <23000000>; > > > + channel@0 { > > > + reg = <0>; > > > + adi,mode = <4>; > > > + adi,ext-current-sense-resistor; > > > + adi,slew = <0 64000 1>; > > > + }; > > > + channel@1 { > > > + reg = <1>; > > > + adi,mode = <4>; > > > + adi,ext-current-sense-resistor; > > > + adi,slew = <0 64000 1>; > > > + }; > > > + channel@2 { > > > + reg = <2>; > > > + adi,mode = <4>; > > > + adi,ext-current-sense-resistor; > > > + adi,slew = <0 64000 1>; > > > + }; > > > + channel@3 { > > > + reg = <3>; > > > + adi,mode = <4>; > > > + adi,ext-current-sense-resistor; > > > + adi,slew = <0 64000 1>; > > > + }; > > > + }; > > > + }; > > > +... > > > -- > > > 2.28.0 > > > >