tree 30b74164155bf045c21bcdb42832cdd759286fb8
parent 24052406adbaeddc78b7d2ed79494bf3ef4065f6
author Michael Brooks <michaelbrooks@google.com> 1540938242 -0700
committer Peter Nordström <pnordstrom@google.com> 1579041615 -0800

Shutoff iMX8 when passing critical temperature

* The busy loop that polls beyond alert doesn't reduce the power
consumption at all.
* Adds using SNVS register writes to explicitly disable the PMIC when
the temperature exceeds critical.
* Drops power from ~5W to 300 mW (for entire board).
* Note: a full power cycle is needed to recover.

Change-Id: Ic9292555fe15c4288822704bca617a89f7ec0f05