[S] Change in coreboot[master]: mb/google/rex: Set AUX orientation at SoC to follow cable for anx7452

[Caveh Jalali (Code Review)]

Attention is currently required from: Caveh Jalali, Eric Lai, Kapil Porwal, Subrata Banik, Tarun Tuli.

Hello Eric Lai, Kapil Porwal, Subrata Banik, Tarun Tuli, build bot (Jenkins),

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

https://review.coreboot.org/c/coreboot/+/75827?usp=email

to look at the new patch set (#3).

The following approvals got outdated and were removed:
Code-Review+2 by Eric Lai, Code-Review+2 by Kapil Porwal, Code-Review+2 by Subrata Banik, Verified+1 by build bot (Jenkins)

The change is no longer submittable: Code-Review and Verified are unsatisfied now.

Change subject: mb/google/rex: Set AUX orientation at SoC to follow cable for anx7452
......................................................................

mb/google/rex: Set AUX orientation at SoC to follow cable for anx7452

This configures the SoC to flip the orientation of the AUX pins to
follow the orientation of the cable when using the anx7452 retimer. This
is necessary when there is no external retimer/mux or the retimer/mux
does not implement the flip. The anx7452 retimer does not appear to
support this feature, so let the SoC do the flip.

BUG=b:267589042,b:281006910
TEST=verified DP-ALT mode works on rex using both cable orientations

Change-Id: Ibb9f442d2afd81fb5dde4bca97c15457837f9f4a
Signed-off-by: Caveh Jalali 
---
M src/mainboard/google/rex/variants/rex0/variant.c
1 file changed, 14 insertions(+), 0 deletions(-)

git pull ssh://review.coreboot.org:29418/coreboot refs/changes/27/75827/3