From: Jonathan Cameron <Jonathan.Cameron@xxxxxxxxxx> Straight forward conversion. Only fiddly bit is the XOR of spi-cpol and spi-cpha. Signed-off-by: Jonathan Cameron <Jonathan.Cameron@xxxxxxxxxx> Cc: Sean Nyekjaer <sean.nyekjaer@xxxxxxxxx> Link: https://lore.kernel.org/r/20201031184854.745828-40-jic23@xxxxxxxxxx --- This has been in a few different series, so version numbering is a bit scrambled. Let's just call it v2. V2: * Drop unnecessary refs where units in naming * Drop unnecessary brackets in child node naming .../devicetree/bindings/iio/dac/ad5755.txt | 124 ------------- .../bindings/iio/dac/adi,ad5755.yaml | 169 ++++++++++++++++++ 2 files changed, 169 insertions(+), 124 deletions(-) diff --git a/Documentation/devicetree/bindings/iio/dac/ad5755.txt b/Documentation/devicetree/bindings/iio/dac/ad5755.txt deleted file mode 100644 index 502e1e55adbd..000000000000 --- a/Documentation/devicetree/bindings/iio/dac/ad5755.txt +++ /dev/null @@ -1,124 +0,0 @@ -* Analog Devices AD5755 IIO Multi-Channel DAC Linux Driver - -Required properties: - - compatible: Has to contain one of the following: - adi,ad5755 - adi,ad5755-1 - adi,ad5757 - adi,ad5735 - adi,ad5737 - - - reg: spi chip select number for the device - - spi-cpha or spi-cpol: is the only modes that is supported - -Recommended properties: - - spi-max-frequency: Definition as per - Documentation/devicetree/bindings/spi/spi-bus.txt - -Optional properties: -See include/dt-bindings/iio/ad5755.h - - adi,ext-dc-dc-compenstation-resistor: boolean set if the hardware have an - external resistor and thereby bypasses - the internal compensation resistor. - - adi,dc-dc-phase: - 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: - Valid values for DC DC frequency is [Hz]: - 250000 - 410000 - 650000 - - adi,dc-dc-max-microvolt: - Valid values for the maximum allowed Vboost voltage supplied by - the dc-to-dc converter is: - 23000000 - 24500000 - 27000000 - 29500000 - -Optional for every channel: - - adi,mode: - 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: boolean set if the hardware a external - current sense resistor. - - adi,enable-voltage-overrange: boolean enable voltage overrange - - adi,slew: 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 settings: - Valid values for the slew rate update frequency: - 64000 - 32000 - 16000 - 8000 - 4000 - 2000 - 1000 - 500 - 250 - 125 - 64 - 32 - 16 - 8 - 4 - 0 - 3: Slew step size: - Valid values for the step size LSBs: - 1 - 2 - 4 - 16 - 32 - 64 - 128 - 256 - -Example: -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>; - }; -}; 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..be419ac46caa --- /dev/null +++ b/Documentation/devicetree/bindings/iio/dac/adi,ad5755.yaml @@ -0,0 +1,169 @@ +# 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: + $ref: /schemas/types.yaml#/definitions/uint32 + enum: [0, 1, 2, 3] + description: | + Valid values for DC DC Phase control is: + 0: All dc-to-dc converters clock on the same edge. + 1: Channel A and Channel B clock on the same edge, + Channel C and Channel D clock on opposite edges. + 2: Channel A and Channel C clock on the same edge, + Channel B and Channel D clock on opposite edges. + 3: Channel A, Channel B, Channel C, and Channel D + clock 90 degrees out of phase from each other. + + adi,dc-dc-freq-hz: + enum: [250000, 410000, 650000] + + adi,dc-dc-max-microvolt: + description: + Maximum allowed Vboost voltage supplied by the dc-to-dc converter. + enum: [23000000, 24500000, 27000000, 29500000] + + "#address-cells": + const: 1 + + "#size-cells": + const: 0 + + "#io-channel-cells": + const: 1 + +required: + - compatible + - reg + +additionalProperties: false + +patternProperties: + "^channel@[0-7]$": + 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 + +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>; + }; + }; + }; +... -- 2.31.1
