Add framework to generate ACPI methods in SSDT for screen backlight control. Adjust params for gtt_ methods to match prototypes in i915.h and avoid conflicts. To make use of this, individual boards will need to include default_brightness_levels.asl in their dsdt, as well as add 'register "gfx" = "GMA_STATIC_DISPLAYS(0)"' to their devicetree. Change-Id: If93b7690ef36b5d19ca43957e8a1bef91ec5821d Signed-off-by: Matt DeVillier <matt.devillier@gmail.com> Reviewed-on: https://review.coreboot.org/c/coreboot/+/39941 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Nico Huber <nico.h@gmx.de> Reviewed-by: Angel Pons <th3fanbus@gmail.com> |
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