The Linux driver supports the LP8550/1/2/3/5/6 and LP8557. The Linux driver supports communication through the I2C bus and interfaces with the backlight and PWM sub-system.
Linux Mainline Status
Available in Linux Main line: Yes
Available through git.ti.com: N/A
Linux Source Files
The files associated with this device are:
Linux Device Tree DocumenationDocumentation/devicetree/bindings/leds/backlight/lp855x.txt
Enabling Driver Support
Configure kernel with "make menuconfig" (alternatively use "make xconfig" or "make nconfig")
Symbol: BACKLIGHT_LP855X [=y]Type : tristatePrompt: Backlight driver for TI LP855X Location: -> 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:393 Depends on: HAS_IOMEM [=y] && BACKLIGHT_LCD_SUPPORT [=y] && BACKLIGHT_CLASS_DEVICE [=y] && I2C [=y] && PWM [=y]
Fixes and Code Enhancements
If there are fixes and or code enhancements that need to be added to thisdriver please either1. Send the patches to the relevant Linux Kernel community as listed in the maintainers file located: Hereor2. Contact your TI representative.