Ubuntu 3.16 kernel topic

I read a while back about an open source driver for the tegra 2. If I remember correctly it first became mainline in 3.16. I've installed Ubuntu 14.04 on a TF101 using a 3.1 kernel, but there are problems, mainly sleep doesn't work. So, I wanted to try a newer kernel with the open source driver. It looks like the default kernel for 14.04 is 3.13, but there is a 3.16 kernel available. I installed it, now I am trying to create a kernel blob that will boot.

Has anyone else tried this?