[M] Change in coreboot[master]: soc/amd: Throttle SOC during low/no battery

[Tim Van Patten (Code Review)]

Attention is currently required from: Jason Glenesk, Jason Nien, Matt DeVillier, Martin Roth, Tim Van Patten, Fred Reitberger, Felix Held.

Hello build bot (Jenkins), Jason Glenesk, Raul Rangel, Jason Nien, Matt DeVillier, Martin Roth, Fred Reitberger, Felix Held,

I'd like you to reexamine a change. Please visit

https://review.coreboot.org/c/coreboot/+/67189

to look at the new patch set (#9).

Change subject: soc/amd: Throttle SOC during low/no battery
......................................................................

soc/amd: Throttle SOC during low/no battery

Use dynamic power and thermal configuration (DPTC) via ACPI ALIB calls
to throttle the SOC when there is no battery or critically low battery,
to enable the SOC to boot without overwhelming the AC charger and
browning out.

DPTC is not enabled for low/no battery mode with this CL. It will be
enabled for Skyrim in a following CL.

BRANCH=none
BUG=b:217911928
TEST=Boot skyrim

Signed-off-by: Tim Van Patten 
Change-Id: Ifeddb99e97af93b40a5aad960d760e4c101cf086
---
M src/mainboard/google/skyrim/variants/skyrim/overridetree.cb
M src/soc/amd/mendocino/acpi/soc.asl
M src/soc/amd/mendocino/chip.h
M src/soc/amd/mendocino/root_complex.c
4 files changed, 72 insertions(+), 3 deletions(-)

git pull ssh://review.coreboot.org:29418/coreboot refs/changes/89/67189/9