I am using a sabrelite board where in I am able to see touch screen tsc2004 is being probed and cat /proc/bus/input/devices shows the entry for tsc2004 touch screen . I was just looking into below link https://community.freescale.com/thread/293210 which shows this problem is being solved.
I have even re-compiled the tslib source code by commenting the lines and later when I do ts_calibrate I am not able to get any touch events on the screen.
I have configured i2c-gpio pins for 4,20 which is tsc2004 touch controller at i2c probe address 0x48.
Can anybody let me know what is the problem with this.