Lance Zhao has posted comments on this change. ( https://review.coreboot.org/28073 )
Change subject: mainboard/google/nocturne: turn off cams in D3 ......................................................................
Patch Set 1:
(1 comment)
https://review.coreboot.org/#/c/28073/1//COMMIT_MSG Commit Message:
https://review.coreboot.org/#/c/28073/1//COMMIT_MSG@9 PS1, Line 9: This means that we're : telling the OS that the cams need power in both D0 and D3 (and not the : intermediate states) I don't think that's how OSPM to determine the power needed or not in D3 state. The power resource list in _PR3 will be turned off if OSPM decided to enter D3hot state(Or D3 cold depends on how OS decided in _OSC).
My understanding is delete _PR3 will make power resources in FRPR kept in On state but not turned off.