OMAP1 PWL-based LCD Backlight

modulename: omap1_bl.ko

configname: CONFIG_BACKLIGHT_OMAP1

Linux Kernel Configuration
└─>Device Drivers
└─>Graphics support
└─>Backlight & LCD device support
└─>OMAP1 PWL-based LCD Backlight
In linux kernel since version 2.6.25 (release Date: 2008-04-16)  
This driver controls the LCD backlight level and power for
the PWL module of OMAP1 processors. Say Y if your board
uses this hardware.

source code: