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dt-bindings: iio: adc: add AD762x/AD796x ADCs
Add a binding specification for the Analog Devices Inc. AD7625, AD7626, AD7960, and AD7961 ADCs. Reviewed-by: Conor Dooley <conor.dooley@microchip.com> Signed-off-by: Trevor Gamblin <tgamblin@baylibre.com> Link: https://patch.msgid.link/20240909-ad7625_r1-v5-1-60a397768b25@baylibre.com Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
This commit is contained in:
Trevor Gamblin
committed by
Jonathan Cameron
Jonathan Cameron
parent
96f1792fe8
commit
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176
Documentation/devicetree/bindings/iio/adc/adi,ad7625.yaml
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176
Documentation/devicetree/bindings/iio/adc/adi,ad7625.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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$id: http://devicetree.org/schemas/iio/adc/adi,ad7625.yaml#
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$schema: http://devicetree.org/meta-schemas/core.yaml#
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title: Analog Devices Fast PulSAR Analog to Digital Converters
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maintainers:
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- Michael Hennerich <Michael.Hennerich@analog.com>
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- Nuno Sá <nuno.sa@analog.com>
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description: |
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A family of single channel differential analog to digital converters.
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* https://www.analog.com/en/products/ad7625.html
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* https://www.analog.com/en/products/ad7626.html
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* https://www.analog.com/en/products/ad7960.html
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* https://www.analog.com/en/products/ad7961.html
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properties:
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compatible:
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enum:
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- adi,ad7625
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- adi,ad7626
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- adi,ad7960
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- adi,ad7961
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vdd1-supply: true
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vdd2-supply: true
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vio-supply: true
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ref-supply:
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description:
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Voltage regulator for the external reference voltage (REF).
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refin-supply:
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description:
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Voltage regulator for the reference buffer input (REFIN).
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clocks:
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description:
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The clock connected to the CLK pins, gated by the clk_gate PWM.
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maxItems: 1
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pwms:
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items:
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- description: PWM connected to the CNV input on the ADC.
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- description: PWM that gates the clock connected to the ADC's CLK input.
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pwm-names:
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items:
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- const: cnv
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- const: clk_gate
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io-backends:
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description:
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The AXI ADC IP block connected to the D+/- and DCO+/- lines of the
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ADC. An example backend can be found at
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http://analogdevicesinc.github.io/hdl/projects/pulsar_lvds/index.html.
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maxItems: 1
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adi,no-dco:
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$ref: /schemas/types.yaml#/definitions/flag
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description:
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Indicates the wiring of the DCO+/- lines. If true, then they are
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grounded and the device is in self-clocked mode. If this is not
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present, then the device is in echoed clock mode.
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adi,en0-always-on:
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$ref: /schemas/types.yaml#/definitions/flag
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description:
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Indicates if EN0 is hard-wired to the high state. If neither this
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nor en0-gpios are present, then EN0 is hard-wired low.
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adi,en1-always-on:
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$ref: /schemas/types.yaml#/definitions/flag
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description:
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Indicates if EN1 is hard-wired to the high state. If neither this
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nor en1-gpios are present, then EN1 is hard-wired low.
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adi,en2-always-on:
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$ref: /schemas/types.yaml#/definitions/flag
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description:
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Indicates if EN2 is hard-wired to the high state. If neither this
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nor en2-gpios are present, then EN2 is hard-wired low.
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adi,en3-always-on:
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$ref: /schemas/types.yaml#/definitions/flag
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description:
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Indicates if EN3 is hard-wired to the high state. If neither this
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nor en3-gpios are present, then EN3 is hard-wired low.
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en0-gpios:
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description:
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Configurable EN0 pin.
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en1-gpios:
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description:
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Configurable EN1 pin.
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en2-gpios:
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description:
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Configurable EN2 pin.
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en3-gpios:
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description:
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Configurable EN3 pin.
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required:
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- compatible
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- vdd1-supply
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- vdd2-supply
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- vio-supply
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- clocks
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- pwms
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- pwm-names
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- io-backends
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allOf:
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- if:
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required:
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- ref-supply
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then:
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properties:
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refin-supply: false
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- if:
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required:
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- refin-supply
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then:
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properties:
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ref-supply: false
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- if:
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properties:
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compatible:
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contains:
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enum:
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- adi,ad7625
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- adi,ad7626
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then:
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properties:
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en2-gpios: false
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en3-gpios: false
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adi,en2-always-on: false
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adi,en3-always-on: false
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- if:
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properties:
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compatible:
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contains:
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enum:
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- adi,ad7960
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- adi,ad7961
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then:
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# ad796x parts must have one of the two supplies
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oneOf:
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- required: [ref-supply]
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- required: [refin-supply]
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additionalProperties: false
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examples:
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- |
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#include <dt-bindings/gpio/gpio.h>
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adc {
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compatible = "adi,ad7625";
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vdd1-supply = <&supply_5V>;
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vdd2-supply = <&supply_2_5V>;
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vio-supply = <&supply_2_5V>;
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io-backends = <&axi_adc>;
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clocks = <&ref_clk>;
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pwms = <&axi_pwm_gen 0 0>, <&axi_pwm_gen 1 0>;
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pwm-names = "cnv", "clk_gate";
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en0-gpios = <&gpio0 86 GPIO_ACTIVE_HIGH>;
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en1-gpios = <&gpio0 87 GPIO_ACTIVE_HIGH>;
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};
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@@ -1327,6 +1327,15 @@ F: Documentation/devicetree/bindings/iio/addac/adi,ad74413r.yaml
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F: drivers/iio/addac/ad74413r.c
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F: include/dt-bindings/iio/addac/adi,ad74413r.h
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ANALOG DEVICES INC AD7625 DRIVER
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M: Michael Hennerich <Michael.Hennerich@analog.com>
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M: Nuno Sá <nuno.sa@analog.com>
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R: Trevor Gamblin <tgamblin@baylibre.com>
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S: Supported
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W: https://ez.analog.com/linux-software-drivers
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W: http://analogdevicesinc.github.io/hdl/projects/pulsar_lvds/index.html
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F: Documentation/devicetree/bindings/iio/adc/adi,ad7625.yaml
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ANALOG DEVICES INC AD7768-1 DRIVER
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M: Michael Hennerich <Michael.Hennerich@analog.com>
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L: linux-iio@vger.kernel.org
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