> Gaah. I hadn't tested this on my laptop, and instead of beign a
> regression fix, this looks like a new regression. My touchpad on the
> xps 13 9350 no longer works after this.

Can you try e2c824924cdb41 ("i2c: designware: Fix bogus sda_hold_time
due to uninitialized vars") from my for-current branch? I am waiting for
buildbot results before I send out the pull request.