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LCD Display with powerup sequence in device tree

Question asked by Wolfgang Netbal on Apr 20, 2015
Latest reply on Apr 28, 2016 by fulin chen



I use a LCD display that has a defined powerup sequence (switch on VCC and backlight vcc - wait 5ms send LVDS data -  wait 300 ms - switch on backlight)


Right now I use kernel 3.0.43 and added a function to set the gpio pins inside the drivers/video/mxc/ldb.c which handles my extended fsl_mxc_ldb_platform_data.


We port our system to kernel 3.10.53 and use the device tree for board configuration.


Is there an option in device tree files to handle powerup sequences for display ?


Kind regards