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drivers/intel/gma: Include gfx.asl by default for all platforms...

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which select INTEL_GMA_ACPI. Rework brightness level includes and
platform-level asl files to avoid duplicate device definition for GFX0.

Include gfx.asl for Skylake/Kabylake, since all other soc/intel/common
platforms already do. Adjust mb/51nb/x210 to prevent device redefinition.

Some OSes (e.g. Windows, MacOS) require/prefer the ACPI device for
the IGD to exist, even if ACPI brightness controls are not utilized.
This change adds a GFX0 ACPI device for all boards whose platforms
select INTEL_GMA_ACPI without requiring non-functional brightness
controls to be added at the board level.

Change-Id: Ie71bd5fc7acd926b7ce7da17fbc108670fd453e0
Signed-off-by: Matt DeVillier <matt.devillier@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/48862
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Michael Niewöhner <foss@mniewoehner.de>
This commit is contained in:
Matt DeVillier
2020-11-28 13:17:54 -06:00
committed by Michael Niewöhner
parent 5cf4c87da7
commit c6589aefc1
14 changed files with 34 additions and 8 deletions
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4
src/drivers/intel/gma/acpi/gma.asl
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@@ -1,9 +1,7 @@
/* SPDX-License-Identifier: GPL-2.0-only */
Device (GFX0)
Scope (GFX0)
{
Name (_ADR, 0x00020000)
OperationRegion (GFXC, PCI_Config, 0x00, 0x0100)
Field (GFXC, DWordAcc, NoLock, Preserve)
{