[XS] Change in coreboot[main]: mb/google/volteer/variants/drobit: fix power_limits_config

[Ingo Reitz (Code Review)]

Attention is currently required from: Ariel Chang, Matt DeVillier, Nick Vaccaro, Paul Menzel, Paul Yang, Wayne3 Wang.

Hello Ariel Chang, Matt DeVillier, Nick Vaccaro, Paul Yang, Wayne3 Wang, build bot (Jenkins),

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

https://review.coreboot.org/c/coreboot/+/86026?usp=email

to look at the new patch set (#5).

Change subject: mb/google/volteer/variants/drobit: fix power_limits_config
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mb/google/volteer/variants/drobit: fix power_limits_config

Drobit shows little power usage (around 9W) and very low clock speeds
(1.1GHz - 1.4GHz) under load (`stress -c $(nproc)`), despite being at
very low temperatures (40-50C). It turns out that power_limits_config
is set to the lower end of the dptf power limit ranges as opposed to
baseboard and other variants. This seems to prevent the device from
using the intended power limits.

Tested: Boot and confirm more reasoable power usage (17W) and clock
speeds (around 2.5GHz) as well as good temperatures (topped 85C) and
stability under 100% load (`stress -c $(nproc)` for 30min).
Device for tests is i5-1135G7 and 16GG RAM.

Change-Id: Id0478c713b51db4972e7d93ec597a30fa885c22b
Signed-off-by: Ingo Reitz 
---
M src/mainboard/google/volteer/variants/drobit/overridetree.cb
1 file changed, 2 insertions(+), 2 deletions(-)

git pull ssh://review.coreboot.org:29418/coreboot refs/changes/26/86026/5