John Zhao uploaded patch set #3 to this change.

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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. _L61 method invokes sub-method HPEV to support Hot Plug
wake event from Thunderbolt PCIe root ports. _L61 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 <john.zhao@intel.com>
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/49/42149/3

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Gerrit-Project: coreboot
Gerrit-Branch: master
Gerrit-Change-Id: I022cf4aa3f2ee459b9dc87849494e10755d995c8
Gerrit-Change-Number: 42149
Gerrit-PatchSet: 3
Gerrit-Owner: John Zhao <john.zhao@intel.com>
Gerrit-Reviewer: Divya S Sasidharan <divya.s.sasidharan@intel.com>
Gerrit-Reviewer: Duncan Laurie <dlaurie@chromium.org>
Gerrit-Reviewer: Patrick Rudolph <siro@das-labor.org>
Gerrit-Reviewer: Prashant Malani <pmalani@chromium.org>
Gerrit-Reviewer: Shamile Khan <shamile.khan@intel.com>
Gerrit-Reviewer: Wonkyu Kim <wonkyu.kim@intel.com>
Gerrit-Reviewer: build bot (Jenkins) <no-reply@coreboot.org>
Gerrit-CC: Paul Menzel <paulepanter@users.sourceforge.net>
Gerrit-MessageType: newpatchset