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pwm based backlight driver support for the lcd panel

Question asked by ask on Oct 7, 2014
Latest reply on Oct 7, 2014 by igorpadykov

Hi all,


I am using imx287 processor based board for one of my Infotainment project. In this product lcd panel backlight is controlling by PWM4.  I tried to enable the CONFIG_BACKLIGHT_PWM and HAVE_PWM  options, but those are not available in my ltib setup.  I tried to build these options by modifying the corresponding make files (drivers/video/backlight/Makefile  and arch/arm/plat-mxc) and ended up with build erros. Please let me know whether I am following wrong approach?