Vishnu 
hi ,
I am trying to interface 10.2" LCD to friendly arm but the problem is
that i am unable to calculate LCD horizontal front porch , back porch &
Vertical front porch and back porch (left, right , up & down margin). with
the given data sheet. here i am providing data sheet link
http://www.bdtic.com/DataSheet/Innolux/AT102TN03-V9.pdf.
even i did'nt understood pixel clock. which is defined in options.h file