Documentation/devicetree/bindings/iio/dac/adi,ltc2664.yaml

Source file repositories/reference/linux-study-clean/Documentation/devicetree/bindings/iio/dac/adi,ltc2664.yaml

File Facts

System
Linux kernel
Corpus path
Documentation/devicetree/bindings/iio/dac/adi,ltc2664.yaml
Extension
.yaml
Size
4951 bytes
Lines
182
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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# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
%YAML 1.2
---
$id: http://devicetree.org/schemas/iio/dac/adi,ltc2664.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#

title: Analog Devices LTC2664 DAC

maintainers:
  - Michael Hennerich <michael.hennerich@analog.com>
  - Kim Seer Paller <kimseer.paller@analog.com>

description: |
  Analog Devices LTC2664 4 channel, 12-/16-Bit, +-10V DAC
  https://www.analog.com/media/en/technical-documentation/data-sheets/2664fa.pdf

properties:
  compatible:
    enum:
      - adi,ltc2664

  reg:
    maxItems: 1

  spi-max-frequency:
    maximum: 50000000

  vcc-supply:
    description: Analog Supply Voltage Input.

  v-pos-supply:
    description: Positive Supply Voltage Input.

  v-neg-supply:
    description: Negative Supply Voltage Input.

  iovcc-supply:
    description: Digital Input/Output Supply Voltage.

  ref-supply:
    description:
      Reference Input/Output. The voltage at the REF pin sets the full-scale
      range of all channels. If not provided the internal reference is used and
      also provided on the VREF pin.

  reset-gpios:
    description:
      Active-low Asynchronous Clear Input. A logic low at this level-triggered
      input clears the part to the reset code and range determined by the
      hardwired option chosen using the MSPAN pins. The control registers are
      cleared to zero.
    maxItems: 1

  adi,manual-span-operation-config:
    description:
      This property must mimic the MSPAN pin configurations. By tying the MSPAN
      pins (MSP2, MSP1 and MSP0) to GND and/or VCC, any output range can be
      hardware-configured with different mid-scale or zero-scale reset options.
      The hardware configuration is latched during power on reset for proper
      operation.
        0 - MPS2=GND, MPS1=GND, MSP0=GND (+-10V, reset to 0V)
        1 - MPS2=GND, MPS1=GND, MSP0=VCC (+-5V, reset to 0V)
        2 - MPS2=GND, MPS1=VCC, MSP0=GND (+-2.5V, reset to 0V)
        3 - MPS2=GND, MPS1=VCC, MSP0=VCC (0V to 10, reset to 0V)
        4 - MPS2=VCC, MPS1=GND, MSP0=GND (0V to 10V, reset to 5V)
        5 - MPS2=VCC, MPS1=GND, MSP0=VCC (0V to 5V, reset to 0V)
        6 - MPS2=VCC, MPS1=VCC, MSP0=GND (0V to 5V, reset to 2.5V)
        7 - MPS2=VCC, MPS1=VCC, MSP0=VCC (0V to 5V, reset to 0V, enables SoftSpan)
    $ref: /schemas/types.yaml#/definitions/uint32
    enum: [0, 1, 2, 3, 4, 5, 6, 7]

Annotation

Implementation Notes