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drivers: led: max25603 : Add support for MAX25603 #2310

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Pull Request Description

The MAX25603 is a synchronous four-switch, buckboost LED driver controller suitable for multifunction automotive combination head lamps. The controller regulates the LED current for LED string voltages from 0V to 60V. The MAX25603 can be used as a seamless buck-boost LED driver for applications that require an efficient buck-boost LED driver with synchronous rectification. The MAX25603 is ideal for high-power applications that require a current source with PWM dimming capability.

1st commit : driver files
2nd commit : driver documentation file
3rd commit : project files

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 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

@RaduSabau1
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V2:

  • Added support for full control over PWM for EN1, EN2, HB and LB in case of more complex applications.

Add initial header and source files for MAX25603 no-OS driver.

Signed-off-by: Radu Sabau <[email protected]>
Add README.rst documentation file for the driver.

Signed-off-by: Radu Sabau <[email protected]>
Add initial header and source files alongside Makefiles
for MAX25603 device project.

Signed-off-by: Radu Sabau <[email protected]>
@RaduSabau1
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V3:

  • Fixed negated logic for HB and LB.

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