Change in coreboot[master]: drivers/intel/usb4/retimer: Add function to correct EC port mapping

[Maulik V Vaghela (Code Review)]

Attention is currently required from: Patrick Rudolph.
Hello Patrick Rudolph,

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

https://review.coreboot.org/c/coreboot/+/59665

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

Change subject: drivers/intel/usb4/retimer: Add function to correct EC port mapping
......................................................................

drivers/intel/usb4/retimer: Add function to correct EC port mapping

Currently coreboot interprets TCSS port number as per physical port
number while EC abstracts port number and provides indices as port
number. For example, if TCSS port 1 and 3 are enabled on the board,
coreboot will interpret port numbers as 0 and 2, but since only 2 ports
are enabled in the system EC will assign port numbers as 0 and 1.

This creates a port number mismatch while communicating between EC and
coreboot. This patch addresses issue where SoC can implement function
to map correct EC port as per port enabled in mainboard.

BUG=b:207057940
BRANCH=None
TEST=Check if code compiles successfully. Functionality will work once
function is implemented in SoC code.

Change-Id: Ia7a5e63838e6529196bd211516e4d665b084f79e
Signed-off-by: MAULIK V VAGHELA 
---
M src/drivers/intel/usb4/retimer/retimer.c
M src/drivers/intel/usb4/retimer/retimer.h
2 files changed, 26 insertions(+), 1 deletion(-)

git pull ssh://review.coreboot.org:29418/coreboot refs/changes/65/59665/2