Documentation/devicetree/bindings/iio/adc/aspeed,ast2600-adc.yaml

Source file repositories/reference/linux-study-clean/Documentation/devicetree/bindings/iio/adc/aspeed,ast2600-adc.yaml

File Facts

System
Linux kernel
Corpus path
Documentation/devicetree/bindings/iio/adc/aspeed,ast2600-adc.yaml
Extension
.yaml
Size
2633 bytes
Lines
99
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)
%YAML 1.2
---
$id: http://devicetree.org/schemas/iio/adc/aspeed,ast2600-adc.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#

title: ADC that forms part of an ASPEED server management processor.

maintainers:
  - Billy Tsai <billy_tsai@aspeedtech.com>

description: |
  • 10-bits resolution for 16 voltage channels.
  • The device split into two individual engine and each contains 8 voltage
  channels.
  • Channel scanning can be non-continuous.
  • Programmable ADC clock frequency.
  • Programmable upper and lower threshold for each channels.
  • Interrupt when larger or less than threshold for each channels.
  • Support hysteresis for each channels.
  • Built-in a compensating method.
  • Built-in a register to trim internal reference voltage.
  • Internal or External reference voltage.
  • Support 2 Internal reference voltage 1.2v or 2.5v.
  • Integrate dividing circuit for battery sensing.

properties:
  compatible:
    enum:
      - aspeed,ast2600-adc0
      - aspeed,ast2600-adc1
      - aspeed,ast2700-adc0
      - aspeed,ast2700-adc1
    description:
      Their trimming data, which is used to calibrate internal reference volage,
      locates in different address of OTP.

  reg:
    maxItems: 1

  clocks:
    maxItems: 1
    description:
      Input clock used to derive the sample clock. Expected to be the
      SoC's APB clock.

  interrupts:
    maxItems: 1

  resets:
    maxItems: 1

  "#io-channel-cells":
    const: 1

  vref-supply:
    description:
      The external regulator supply ADC reference voltage.

  aspeed,int-vref-microvolt:
    enum: [1200000, 2500000]
    description:
      ADC internal reference voltage in microvolts.

  aspeed,battery-sensing:
    type: boolean
    description:
      Inform the driver that last channel will be used to sensor battery.

required:

Annotation

Implementation Notes