[coreboot-gerrit] Change in coreboot[master]: Add method _L61 for Thunderbolt Hot Plug event

[John Zhao (Code Review)]

Hello build bot (Jenkins), Wonkyu Kim, Duncan Laurie, Shamile Khan, Patrick Rudolph, Prashant Malani, Divya S Sasidharan,

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

https://review.coreboot.org/c/coreboot/+/42149

to look at the new patch set (#4).

Change subject: Add method _L61 for Thunderbolt Hot Plug event
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Add method _L61 for Thunderbolt Hot Plug event

This change adds method _L61 for Thunderbolt Hot Plug event in the
GPE scope. method _L61 invokes sub-method HPEV to support Hot Plug
wake event from Thunderbolt PCIe root ports. This method intercepts
Presence Detect Changed interrupt and make sure the L0s is disabled
on empty slots prior booting to OS.

BUG=b:156435065
TEST=Verified multiple hot plug successfully with Lenovo dock.

Signed-off-by: John Zhao 
Change-Id: I022cf4aa3f2ee459b9dc87849494e10755d995c8
---
M src/soc/intel/tigerlake/acpi/tcss.asl
1 file changed, 214 insertions(+), 116 deletions(-)

git pull ssh://review.coreboot.org:29418/coreboot refs/changes/49/42149/4