dt-bindings: iio: dac: Add adi,ltc2672.yaml
Add documentation for ltc2672. Reviewed-by: Conor Dooley <conor.dooley@microchip.com> Co-developed-by: Michael Hennerich <michael.hennerich@analog.com> Signed-off-by: Michael Hennerich <michael.hennerich@analog.com> Signed-off-by: Kim Seer Paller <kimseer.paller@analog.com> Link: https://patch.msgid.link/20240718051834.32270-6-kimseer.paller@analog.com Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
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Kim Seer Paller
Jonathan Cameron
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Documentation/devicetree/bindings/iio/dac/adi,ltc2672.yaml
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Documentation/devicetree/bindings/iio/dac/adi,ltc2672.yaml
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# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
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%YAML 1.2
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---
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$id: http://devicetree.org/schemas/iio/dac/adi,ltc2672.yaml#
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$schema: http://devicetree.org/meta-schemas/core.yaml#
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title: Analog Devices LTC2672 DAC
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maintainers:
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- Michael Hennerich <michael.hennerich@analog.com>
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- Kim Seer Paller <kimseer.paller@analog.com>
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description: |
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Analog Devices LTC2672 5 channel, 12-/16-Bit, 300mA DAC
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https://www.analog.com/media/en/technical-documentation/data-sheets/ltc2672.pdf
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properties:
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compatible:
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enum:
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- adi,ltc2672
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reg:
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maxItems: 1
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spi-max-frequency:
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maximum: 50000000
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vcc-supply:
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description: Analog Supply Voltage Input.
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v-neg-supply:
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description: Negative Supply Voltage Input.
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vdd0-supply:
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description: Positive Supply Voltage Input for DAC OUT0.
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vdd1-supply:
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description: Positive Supply Voltage Input for DAC OUT1.
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vdd2-supply:
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description: Positive Supply Voltage Input for DAC OUT2.
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vdd3-supply:
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description: Positive Supply Voltage Input for DAC OUT3.
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vdd4-supply:
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description: Positive Supply Voltage Input for DAC OUT4.
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iovcc-supply:
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description: Digital Input/Output Supply Voltage.
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ref-supply:
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description:
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Reference Input/Output. The voltage at the REF pin sets the full-scale
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range of all channels. If not provided the internal reference is used and
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also provided on the VREF pin.
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reset-gpios:
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description:
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Active Low Asynchronous Clear Input. A logic low at this level triggered
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input clears the device to the default reset code and output range, which
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is zero-scale with the outputs off. The control registers are cleared to
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zero.
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maxItems: 1
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adi,rfsadj-ohms:
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description:
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If FSADJ is tied to VCC, an internal RFSADJ (20 kΩ) is selected, which
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results in nominal output ranges. When an external resistor of 19 kΩ to
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41 kΩ can be used instead by connecting the resistor between FSADJ and GND
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it controls the scaling of the ranges, and the internal resistor is
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automatically disconnected.
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minimum: 19000
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maximum: 41000
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default: 20000
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io-channels:
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description:
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ADC channel to monitor voltages and currents at the MUX pin.
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maxItems: 1
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'#address-cells':
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const: 1
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'#size-cells':
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const: 0
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patternProperties:
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"^channel@[0-4]$":
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$ref: dac.yaml
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type: object
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additionalProperties: false
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properties:
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reg:
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description: The channel number representing the DAC output channel.
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maximum: 4
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adi,toggle-mode:
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description:
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Set the channel as a toggle enabled channel. Toggle operation enables
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fast switching of a DAC output between two different DAC codes without
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any SPI transaction.
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type: boolean
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output-range-microamp:
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items:
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- const: 0
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- enum: [3125000, 6250000, 12500000, 25000000, 50000000, 100000000,
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200000000, 300000000]
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required:
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- reg
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- output-range-microamp
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required:
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- compatible
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- reg
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- spi-max-frequency
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- vcc-supply
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- iovcc-supply
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- v-neg-supply
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allOf:
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- $ref: /schemas/spi/spi-peripheral-props.yaml#
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additionalProperties: false
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examples:
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- |
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spi {
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#address-cells = <1>;
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#size-cells = <0>;
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dac@0 {
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compatible = "adi,ltc2672";
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reg = <0>;
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spi-max-frequency = <10000000>;
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vcc-supply = <&vcc>;
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iovcc-supply = <&vcc>;
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ref-supply = <&vref>;
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v-neg-supply = <&vneg>;
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io-channels = <&adc 0>;
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#address-cells = <1>;
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#size-cells = <0>;
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channel@0 {
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reg = <0>;
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adi,toggle-mode;
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output-range-microamp = <0 3125000>;
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};
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channel@1 {
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reg = <1>;
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output-range-microamp = <0 6250000>;
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};
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};
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};
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...
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@ -13280,6 +13280,7 @@ L: linux-iio@vger.kernel.org
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S: Supported
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W: https://ez.analog.com/linux-software-drivers
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F: Documentation/devicetree/bindings/iio/dac/adi,ltc2664.yaml
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F: Documentation/devicetree/bindings/iio/dac/adi,ltc2672.yaml
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LTC2688 IIO DAC DRIVER
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M: Nuno Sá <nuno.sa@analog.com>
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