[coreboot-gerrit] Change in coreboot[master]: drivers/intel/usb4: Add Mux Ack driver

[Brandon Breitenstein (Code Review)]

Hello build bot (Jenkins), Patrick Georgi, Martin Roth, Patrick Rudolph,

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

https://review.coreboot.org/c/coreboot/+/48253

to look at the new patch set (#2).

Change subject: drivers/intel/usb4: Add Mux Ack driver
......................................................................

drivers/intel/usb4: Add Mux Ack driver

There are some syncronization issues between EC and Kernel that can cause
unwanted side effects in the USB4/TCSS flows if left alone. This driver adds
ACPI methods to set a gpio so that EC and Kernel can remain in sync on PMC
requests.

Change-Id: Ib584150a0c12bae34ebe8d297288425635873919
Signed-off-by: Brandon Breitenstein 
---
A src/drivers/intel/usb4/mux_ack/Kconfig
A src/drivers/intel/usb4/mux_ack/Makefile.inc
A src/drivers/intel/usb4/mux_ack/ack.c
A src/drivers/intel/usb4/mux_ack/chip.h
4 files changed, 160 insertions(+), 0 deletions(-)

git pull ssh://review.coreboot.org:29418/coreboot refs/changes/53/48253/2