Documentation/devicetree/bindings/leds/skyworks,aat1290.yaml

Source file repositories/reference/linux-study-clean/Documentation/devicetree/bindings/leds/skyworks,aat1290.yaml

File Facts

System
Linux kernel
Corpus path
Documentation/devicetree/bindings/leds/skyworks,aat1290.yaml
Extension
.yaml
Size
2445 bytes
Lines
96
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.

Dependency Surface

Detected Declarations

Annotated Snippet

# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
%YAML 1.2
---
$id: http://devicetree.org/schemas/leds/skyworks,aat1290.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#

title: Skyworks Solutions, Inc. AAT1290 Current Regulator for Flash LEDs

maintainers:
  - Jacek Anaszewski <jacek.anaszewski@gmail.com>
  - Krzysztof Kozlowski <krzk@kernel.org>

description: |
  The device is controlled through two pins:: FL_EN and EN_SET. The pins when,
  asserted high, enable flash strobe and movie mode (max 1/2 of flash current)
  respectively. In order to add a capability of selecting the strobe signal
  source (e.g. CPU or camera sensor) there is an additional switch required,
  independent of the flash chip. The switch is controlled with pin control.

properties:
  compatible:
    const: skyworks,aat1290

  enset-gpios:
    maxItems: 1
    description: EN_SET pin

  flen-gpios:
    maxItems: 1
    description: FL_EN pin

  led:
    $ref: common.yaml#
    unevaluatedProperties: false

    properties:
      led-max-microamp: true

      flash-max-microamp:
        description: |
          Maximum flash LED supply current can be calculated using following
          formula:: I = 1A * 162 kOhm / Rset.

      flash-max-timeout-us:
        description: |
          Maximum flash timeout can be calculated using following formula::
            T = 8.82 * 10^9 * Ct.

    required:
      - flash-max-microamp
      - flash-max-timeout-us
      - led-max-microamp

  pinctrl-names:
    items:
      - const: default
      - const: host
      - const: isp

  pinctrl-0: true
  pinctrl-1: true
  pinctrl-2: true

required:
  - compatible
  - enset-gpios
  - flen-gpios
  - led

additionalProperties: false

Annotation

Implementation Notes