Furquan Shaikh has posted comments on this change. ( https://review.coreboot.org/19829 )
Change subject: mainboard/google/poppy: Add PowerResource for touchscreen device ......................................................................
Patch Set 2:
We needed to do this because the touchscreen wouldn't power back on on resume? Or that the timing was bad when we brought power back? Or is this to deal with s0ix?
We needed to do this because power to the touchscreen device was not cut in S3. This resulted in the power rail for touchscreen being on all the time even when suspended.