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-rw-r--r--src/mainboard/google/samus/acpi/ec.asl3
1 files changed, 3 insertions, 0 deletions
diff --git a/src/mainboard/google/samus/acpi/ec.asl b/src/mainboard/google/samus/acpi/ec.asl
index 995c941356..746498a5dd 100644
--- a/src/mainboard/google/samus/acpi/ec.asl
+++ b/src/mainboard/google/samus/acpi/ec.asl
@@ -20,5 +20,8 @@
/* mainboard configuration */
#include <mainboard/google/samus/ec.h>
+/* Enable EC backed ALS device in ACPI */
+#define EC_ENABLE_ALS_DEVICE
+
/* ACPI code for EC functions */
#include <ec/google/chromeec/acpi/ec.asl>