[S] Change in coreboot[master]: soc/intel/common/block/early_graphics: Introduce a 200 ms delay

[Jérémy Compostella (Code Review)]

Hello build bot (Jenkins),

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

https://review.coreboot.org/c/coreboot/+/71656

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

Change subject: soc/intel/common/block/early_graphics: Introduce a 200 ms delay
......................................................................

soc/intel/common/block/early_graphics: Introduce a 200 ms delay

It has been reported that the PEIM graphics driver may temporarily
fail communication with the display if the time between libgfxinit
turning off the displays and the PEIM driver initialization is too
short. 200 ms has been identified as a safe delay.

This is a temporary workaround and an investigation is in progress to
come up with a better and long term solution.

BUG=b:252792591
BRANCH=firmware-brya-14505.B
TEST=Developer screen is systematically seen

Change-Id: I4ea15123eed1a4355c5ff7d815925032d4151de1
Signed-off-by: Jeremy Compostella 
---
M src/soc/intel/common/block/graphics/early_graphics.c
1 file changed, 37 insertions(+), 0 deletions(-)

git pull ssh://review.coreboot.org:29418/coreboot refs/changes/56/71656/4