1 files changed, 31 insertions, 0 deletions
diff --git a/src/mainboard/system76/adl-p/acpi/backlight.asl b/src/mainboard/system76/adl-p/acpi/backlight.asl
new file mode 100644
index 000000000000..f0202344508b
--- /dev/null
+++ b/src/mainboard/system76/adl-p/acpi/backlight.asl
@@ -0,0 +1,31 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+
+#include <drivers/intel/gma/acpi/gma.asl>
+
+Scope (GFX0)
+{
+	Name (BRIG, Package (22) {
+		40, /* default AC */
+		40, /* default Battery */
+		5,
+		10,
+		15,
+		20,
+		25,
+		30,
+		35,
+		40,
+		45,
+		50,
+		55,
+		60,
+		65,
+		70,
+		75,
+		80,
+		85,
+		90,
+		95,
+		100
+	})
+}