tree 172437bd3eadca117801feea9ecf7e636e60a76f
parent b6cbfa977f63d57d5d6b9e9f7c1cef30162f575a
author Matt DeVillier <matt.devillier@gmail.com> 1705452380 -0600
committer Felix Held <felix-coreboot@felixheld.de> 1706194249 +0000

mb/google/brya/var/*: Ensure LCD device has a valid address

Some variants added the generic gfx driver with an LCD device without
specifying the address, which is required for the backlight controls
to be functional under Windows. Add the address value where missing.

Address value used (0x80010400) is same as on other Brya variants which
did properly set it, and is taken from the ACPI 6.5 spec section B.4.2,
_DOD (display output device enumeration), table B-2:

- bit 31 = use the ACPI-defined (vs vendor-defined) bit scheme for bits
  15-0
- bit 16 = platform firmware can detect the device
- bit 10 = display type is internal/integrated flat panel (aka LCD)

TEST=build/boot Win11 on google/brya (osiris), verify ACPI backlight
controls functional.

Change-Id: Id24e330cfb7c993d12665a704e1ca78e2e38874f
Signed-off-by: Matt DeVillier <matt.devillier@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/80062
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Eric Lai <ericllai@google.com>