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Pull Request Description

This PR adds driver support for the LTC3220/3220-1 Universal 18-Channel LED Driver with a project example.

Driver Features Implemented

  • I2C Communication: LED Current output configuration and blink/gradation settings
  • Power Management: Manual shutdown control via Command register

Project Examples Added

  • Platform: Maxim MAX32690EVKIT evaluation board with DC1265A-A board
  • Test: Validates I2C communication to control device
  • Hardware Validation: Tested on MAX32690EVKIT hardware and DC1265A-A board

PR Type

  • Bug fix (change that fixes an issue)
  • New feature (change that adds new functionality)
  • Breaking change (has dependencies in other repos or will cause CI to fail)

PR Checklist

  • I have followed the Coding style guidelines
  • I have complied with the Submission Checklist
  • I have performed a self-review of the changes
  • I have commented my code, at least hard-to-understand parts
  • I have build all projects affected by the changes in this PR
  • I have tested in hardware affected projects, at the relevant boards
  • I have signed off all commits from this PR
  • I have updated the documentation (wiki pages, ReadMe etc), if applies

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CLAassistant commented Oct 22, 2025

CLA assistant check
All committers have signed the CLA.

@kister-jimenez
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/AzurePipelines run

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Azure Pipelines successfully started running 2 pipeline(s).

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/AzurePipelines run

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Azure Pipelines successfully started running 2 pipeline(s).

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/AzurePipelines run

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Azure Pipelines successfully started running 2 pipeline(s).

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@amiclaus amiclaus left a comment

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documentations issues seem to be valid.

@jemfgeronimo jemfgeronimo self-requested a review October 24, 2025 07:33
Added implementation for writing to LTC3220 device registers

Signed-off-by: Jan Carlo Roleda <jancarlo.roleda@analog.com>
Created LTC3220 project example for Maxim platform
Includes tests for the different features of the LTC3220

Signed-off-by: Jan Carlo Roleda <jancarlo.roleda@analog.com>
Added driver documentation for LTC3220 LED driver

Signed-off-by: Jan Carlo Roleda <jancarlo.roleda@analog.com>
Added project documentation for LTC3220 Driver Example

Signed-off-by: Jan Carlo Roleda <jancarlo.roleda@analog.com>
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/AzurePipelines run

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Azure Pipelines successfully started running 2 pipeline(s).

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4 participants