tree 8ea529d2bfb69c5a2c35be859bec5b086cbc46f4
parent 27d26275bd76a52d4413ee6ac0fd9f3048e43542
author Nico Huber <nico.h@gmx.de> 1779902577 +0200
committer Nico Huber <nico.h@gmx.de> 1785406342 +0000

gma adl: Implement power-domain handling

The ADL-P power domains follow a different pattern.  So far all
power *wells* (and their power gates, PG) were numbered and had
to be enabled in linear order, now we have a tree:

       PW0
        |
     --PW1--
    /       \
  PWA     --PW2--
         /   |   \
       PWB  PWC  PWD

Where PWA .. PWD are required for the display pipelines A .. D.
Also, there are power domains for five combo DDIs now, but only
four TC DDIs.

This is based on work by several authors that was originally
squashed into another commit:
https://review.coreboot.org/c/libgfxinit/+/67801/

Change-Id: I08aed1d2cab84108bb70a5dc62c1bb95d4f1d423
Signed-off-by: Nico Huber <nico.h@gmx.de>
Reviewed-on: https://review.sourcearcade.org/c/libgfxinit/+/509
Reviewed-by: Angel Pons <th3fanbus@gmail.com>
Reviewed-by: Thomas Heijligen <src@posteo.de>
Tested-by: Ada SPARK <gnatbot@sourcearcade.org>