Documentation/devicetree/bindings/iio/adc/microchip,mcp3911.yaml

Source file repositories/reference/linux-study-clean/Documentation/devicetree/bindings/iio/adc/microchip,mcp3911.yaml

File Facts

System
Linux kernel
Corpus path
Documentation/devicetree/bindings/iio/adc/microchip,mcp3911.yaml
Extension
.yaml
Size
2317 bytes
Lines
94
Domain
Support Tooling And Documentation
Bucket
Documentation
Inferred role
Support Tooling And Documentation: configuration, schema, or hardware description
Status
atlas-only

Why This File Exists

Repository support layer: documentation, build tooling, samples, user-space helper tools, generated initramfs support, licenses, and validation utilities.

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Annotated Snippet

# 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/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,mcp3910
      - microchip,mcp3911
      - microchip,mcp3912
      - microchip,mcp3913
      - microchip,mcp3914
      - microchip,mcp3918
      - microchip,mcp3919

  reg:
    maxItems: 1

  spi-max-frequency:
    maximum: 20000000

  reset-gpios:
    maxItems: 1

  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,data-ready-hiz:
    description:
      Data Ready Pin Inactive State Control
      true = The DR pin state is high-impedance
      false = The DR pin state is logic high
    type: boolean

  microchip,device-addr:
    description: Device address when multiple MCP3911 chips are present on the same SPI bus.
    $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

allOf:

Annotation

Implementation Notes