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+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/iio/adc/adi,ad7091r5.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Analog Devices AD7091R-2/-4/-5/-8 Multi-Channel 12-Bit ADCs
+
+maintainers:
+ - Michael Hennerich <michael.hennerich@analog.com>
+ - Marcelo Schmitt <marcelo.schmitt@analog.com>
+
+description: |
+ Analog Devices AD7091R5 4-Channel 12-Bit ADC supporting I2C interface
+ https://www.analog.com/media/en/technical-documentation/data-sheets/ad7091r-5.pdf
+ Analog Devices AD7091R-2/AD7091R-4/AD7091R-8 2-/4-/8-Channel 12-Bit ADCs
+ supporting SPI interface
+ https://www.analog.com/media/en/technical-documentation/data-sheets/AD7091R-2_7091R-4_7091R-8.pdf
+
+properties:
+ compatible:
+ enum:
+ - adi,ad7091r2
+ - adi,ad7091r4
+ - adi,ad7091r5
+ - adi,ad7091r8
+
+ reg:
+ maxItems: 1
+
+ vdd-supply:
+ description:
+ Provide VDD power to the sensor (VDD range is from 2.7V to 5.25V).
+
+ vdrive-supply:
+ description:
+ Determines the voltage level at which the interface logic will operate.
+ The V_drive voltage range is from 1.8V to 5.25V and must not exceed VDD by
+ more than 0.3V.
+
+ vref-supply:
+ description:
+ Phandle to the vref power supply
+
+ convst-gpios:
+ description:
+ GPIO connected to the CONVST pin.
+ This logic input is used to initiate conversions on the analog
+ input channels.
+ maxItems: 1
+
+ reset-gpios:
+ maxItems: 1
+
+ interrupts:
+ description:
+ Interrupt for signaling when conversion results exceed the high limit for
+ ADC readings or fall below the low limit for them. Interrupt source must
+ be attached to ALERT/BUSY/GPO0 pin.
+ maxItems: 1
+
+required:
+ - compatible
+ - reg
+
+allOf:
+ - $ref: /schemas/spi/spi-peripheral-props.yaml#
+
+ # AD7091R-2 does not have ALERT/BUSY/GPO pin
+ - if:
+ properties:
+ compatible:
+ contains:
+ enum:
+ - adi,ad7091r2
+ then:
+ properties:
+ interrupts: false
+
+ - if:
+ properties:
+ compatible:
+ contains:
+ enum:
+ - adi,ad7091r2
+ - adi,ad7091r4
+ - adi,ad7091r8
+ then:
+ required:
+ - convst-gpios
+
+unevaluatedProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/gpio/gpio.h>
+ #include <dt-bindings/interrupt-controller/irq.h>
+ i2c {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ adc@2f {
+ compatible = "adi,ad7091r5";
+ reg = <0x2f>;
+
+ interrupts = <25 IRQ_TYPE_EDGE_FALLING>;
+ interrupt-parent = <&gpio>;
+ };
+ };
+ - |
+ #include <dt-bindings/gpio/gpio.h>
+ #include <dt-bindings/interrupt-controller/irq.h>
+ spi {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ adc@0 {
+ compatible = "adi,ad7091r8";
+ reg = <0x0>;
+ spi-max-frequency = <1000000>;
+ vref-supply = <&adc_vref>;
+ convst-gpios = <&gpio 25 GPIO_ACTIVE_LOW>;
+ reset-gpios = <&gpio 27 GPIO_ACTIVE_LOW>;
+ interrupts = <22 IRQ_TYPE_EDGE_FALLING>;
+ interrupt-parent = <&gpio>;
+ };
+ };
+...