While using 2015.4 QEMU, a dummy clock driver is needed to emulate Display Port, because SI570 clock generator is not modeled in QEMU.
How do I add the dummy clock driver details to the kernel/dts?
There are two patches created to add the dummy clock driver details to the kernel & DTS.
Below is the procedure to apply the patch:
1) To apply the dummy-clk.patch
2) To apply the dts patch
Do a "petalinux-build", and run the following command: