OMAP触摸屏“Failed to create disp…

如果omap初始化出现“Failed to create display device instance” 的提示，屏幕不能用，则可以用如下方法解决

Add "video=omap24xxfb:rotation=90" to your bootargs.

For example, my bootargs are set as

"setenv bootargs mem=88M console=ttyS0,115200n8 noinitrd rootdelay=1 rw ip=dhcp root=/dev/nfs nfsroot=192.168.1.100:/home/<username>/workdir/filesys,nolock video=omap24xxfb:rotation=90"