This procedure will guide you to the installation of the display on the Pengwyn board and the configuration of the software to test it.
cd /home/pengwyn
tar xvf linux-pengwyn_3.2.display.patch.tar.gz
cd yocto
source poky/oe-init-build-env
bitbake linux-pengwyn -c cleanall
bitbake linux-pengwyn -c menuconfig
bitbake linux-pengwyn