diff --git a/src/mainboard/google/drallion/variants/drallion/devicetree.cb b/src/mainboard/google/drallion/variants/drallion/devicetree.cb
index db3f36bc8d..1f628d6992 100644
--- a/src/mainboard/google/drallion/variants/drallion/devicetree.cb
+++ b/src/mainboard/google/drallion/variants/drallion/devicetree.cb
@@ -329,6 +329,8 @@ chip soc/intel/cannonlake
 				register "generic.has_power_resource" = "1"
 				register "generic.disable_gpio_export_in_crs" = "1"
 				register "hid_desc_reg_offset" = "0x1"
+				register "generic.device_present_gpio" = "GPP_B4"
+				register "generic.device_present_gpio_invert" = "1"
 				device i2c 0A on end
 			end
 			chip drivers/i2c/hid