Linux Driver for LM3630A



The Linux driver supports the LM3630A White LED Driver. The Linux driver supports communication through the I2C bus and interfaces with the backlight sub-system.


Linux Mainline Status

Available in Linux Main line: Yes
Available through git.ti.com: N/A

Supported Devices:

  • lm3630a


Linux Source Files

The files associated with this device are:

  1. drivers/video/backlight/lm3630a_bl.c
  2. include/linux/platform_data/lm3630a_bl.h

Source Files


Other Files



Enabling Driver Support

Configure kernel with "make menuconfig" (alternatively use "make xconfig" or
"make nconfig")

Menuconfig Location

Symbol: BACKLIGHT_LM3630A [=y]
Type  : tristate
Prompt: Backlight Driver for LM3630A
    -> Device Drivers
      -> Graphics support
        -> Backlight & LCD device support (BACKLIGHT_LCD_SUPPORT [=y])
          -> Lowlevel Backlight controls (BACKLIGHT_CLASS_DEVICE [=y])
  Defined at drivers/video/backlight/Kconfig:377
  Depends on: HAS_IOMEM [=y] && BACKLIGHT_LCD_SUPPORT [=y] && BACKLIGHT_CLASS_DEVICE [=y] && I2C [=y] && PWM [=y]
  Selects: REGMAP_I2C [=y]

Fixes and Code Enhancements


If there are fixes and or code enhancements that need to be added to this
driver please either

1. Send the patches to the relevant Linux Kernel community as listed in the maintainers file located: Here


2.  Contact your TI representative.
Backlight LED drivers
LM3630A LM3630A high-efficiency dual-String white LED driver

Support & training

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