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mb/google/glados: Use ACPI brightness controls 

Enables ACPI backlight controls under Windows.

Test: build/boot chell variant, verify screen backlight
controls available and functional under Windows 10.

Change-Id: Ida0102ac828254ae195528a8f1de078abed4a491
Signed-off-by: Matt DeVillier <matt.devillier@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/40121
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Angel Pons <th3fanbus@gmail.com>
This commit is contained in:
Matt DeVillier 2018-07-16 20:29:10 -05:00
parent 11cfcdd784
commit 338c8d4b37
2 changed files with 4 additions and 0 deletions
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3
src/mainboard/google/glados/devicetree.cb
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@ -1,5 +1,8 @@
chip soc/intel/skylake chip soc/intel/skylake
# IGD Displays
register "gfx" = "GMA_STATIC_DISPLAYS(0)"
register "gpu_pp_up_delay_ms" = "200" register "gpu_pp_up_delay_ms" = "200"
register "gpu_pp_down_delay_ms" = " 50" register "gpu_pp_down_delay_ms" = " 50"
register "gpu_pp_cycle_delay_ms" = "500" register "gpu_pp_cycle_delay_ms" = "500"

1
src/mainboard/google/glados/dsdt.asl
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@ -35,6 +35,7 @@ DefinitionBlock(
{ {
#include <soc/intel/skylake/acpi/systemagent.asl> #include <soc/intel/skylake/acpi/systemagent.asl>
#include <soc/intel/skylake/acpi/pch.asl> #include <soc/intel/skylake/acpi/pch.asl>
#include <drivers/intel/gma/acpi/default_brightness_levels.asl>
} }
// Dynamic Platform Thermal Framework // Dynamic Platform Thermal Framework