From bd36a313dee74aea1681cd1c9265e3279deca03b Mon Sep 17 00:00:00 2001 From: Matt DeVillier Date: Tue, 15 Feb 2022 11:48:30 -0600 Subject: mb/google/volteer: Add ACPI display brightness support Add support for ACPI display brightness controls, so that panel adjustment is available under Windows. TEST=build/boot Win11 on google/drobit, verify panel brightness controls available and functional. Change-Id: Ic0c026ae09b3fde648db4bdeb4971423953c96a1 Signed-off-by: Matt DeVillier Reviewed-on: https://review.coreboot.org/c/coreboot/+/77143 Reviewed-by: Tim Wawrzynczak Tested-by: build bot (Jenkins) --- src/mainboard/google/volteer/variants/baseboard/devicetree.cb | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) (limited to 'src/mainboard/google/volteer/variants') diff --git a/src/mainboard/google/volteer/variants/baseboard/devicetree.cb b/src/mainboard/google/volteer/variants/baseboard/devicetree.cb index 4af59e6ff1..078deb29f2 100644 --- a/src/mainboard/google/volteer/variants/baseboard/devicetree.cb +++ b/src/mainboard/google/volteer/variants/baseboard/devicetree.cb @@ -357,7 +357,9 @@ chip soc/intel/tigerlake register "FastPkgCRampDisable" = "1" device domain 0 on - device ref igpu on end + device ref igpu on + register "gfx" = "GMA_DEFAULT_PANEL(0)" + end device ref dptf on # Default DPTF Policy for all Volteer boards if not overridden chip drivers/intel/dptf -- cgit v1.2.3