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+# SPDX-License-Identifier: GPL-2.0 OR BSD-2-Clause
+# Copyright 2019 Marcus Folkesson <marcus.folkesson@gmail.com>
+%YAML 1.2
+---
+$id: "http://devicetree.org/schemas/bindings/iio/adc/microchip,mcp3911.yaml#"
+$schema: "http://devicetree.org/meta-schemas/core.yaml#"
+
+title: Microchip MCP3911 Dual channel analog front end (ADC)
+
+maintainers:
+ - Marcus Folkesson <marcus.folkesson@gmail.com>
+ - Kent Gustavsson <nedo80@gmail.com>
+
+description: |
+ Bindings for the Microchip MCP3911 Dual channel ADC device. Datasheet can be
+ found here: https://ww1.microchip.com/downloads/en/DeviceDoc/20002286C.pdf
+
+properties:
+ compatible:
+ enum:
+ - microchip,mcp3911
+
+ reg:
+ maxItems: 1
+
+ spi-max-frequency:
+ maximum: 20000000
+
+ clocks:
+ description: |
+ Phandle and clock identifier for external sampling clock.
+ If not specified, the internal crystal oscillator will be used.
+ maxItems: 1
+
+ interrupts:
+ description: IRQ line of the ADC
+ maxItems: 1
+
+ microchip,device-addr:
+ description: Device address when multiple MCP3911 chips are present on the same SPI bus.
+ allOf:
+ - $ref: /schemas/types.yaml#/definitions/uint32
+ - enum: [0, 1, 2, 3]
+ - default: 0
+
+ vref-supply:
+ description: |
+ Phandle to the external reference voltage supply.
+ If not specified, the internal voltage reference (1.2V) will be used.
+
+required:
+ - compatible
+ - reg
+
+examples:
+ - |
+ spi {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ adc@0 {
+ compatible = "microchip,mcp3911";
+ reg = <0>;
+ interrupt-parent = <&gpio5>;
+ interrupts = <15 2>;
+ spi-max-frequency = <20000000>;
+ microchip,device-addr = <0>;
+ vref-supply = <&vref_reg>;
+ clocks = <&xtal>;
+ };
+ };