I see an 'altera_4.6' branch was recently created on https://github.com/analogdevicesinc. That's great, because the Altera github branch has some things I need for an IIO ADC solution I'm creating for use with Altera FPGAs, and it was a pain to limp around with the altera_4.4 branch, so thank you very much for creating it.
Unfortunately, it appears to have been a bad merge, because a 'git log' after a:
git pull https://github.com/analogdevicesinc/linux.git altera_4.6
...shows that most (all?) commits from AD over the last several months are missing, at least as of the time of this posting, ~1:30PM PDT, 2016 July 29.