Documentation/devicetree/bindings/leds/ti,lm3697.yaml

Source file repositories/reference/linux-study-clean/Documentation/devicetree/bindings/leds/ti,lm3697.yaml

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System
Linux kernel
Corpus path
Documentation/devicetree/bindings/leds/ti,lm3697.yaml
Extension
.yaml
Size
2909 bytes
Lines
126
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-only OR BSD-2-Clause)
%YAML 1.2
---
$id: http://devicetree.org/schemas/leds/ti,lm3697.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#

title: TI LM3697 Highly Efficient White LED Driver

maintainers:
  - Dan Murphy <dmurphy@ti.com>

description: >
  The LM3697 11-bit LED driver provides high-performance backlight dimming for
  1, 2, or 3 series LED strings while delivering up to 90% efficiency.

  This device is suitable for display and keypad lighting.

properties:
  compatible:
    const: ti,lm3697

  reg:
    maxItems: 1

  '#address-cells':
    const: 1

  '#size-cells':
    const: 0

  enable-gpios:
    description: GPIO pin to enable or disable the device.
    maxItems: 1

  vled-supply:
    description: LED supply for the device.

patternProperties:
  '^led@[01]$':
    description: LED control bank nodes.
    $ref: common.yaml#
    unevaluatedProperties: false

    properties:
      reg:
        description: Control bank selection (0 = bank A, 1 = bank B).
        maximum: 1

      led-sources:
        description: >
          HVLED strings associated with this control bank:

            0 - HVLED1
            1 - HVLED2
            2 - HVLED3
        minItems: 1
        maxItems: 3
        items:
          maximum: 2

      ti,brightness-resolution:
        description: Brightness resolution for the LED string.
        $ref: /schemas/types.yaml#/definitions/uint32
        maximum: 2047

      ramp-up-us:
        description: Ramp-up time in microseconds.
        minimum: 117
        maximum: 2048

Annotation

Implementation Notes