diff --git a/arch/arm/boot/dts/tegra20-acer-a500-picasso.dts b/arch/arm/boot/dts/tegra20-acer-a500-picasso.dts
index 2c6cb7de57f7..2298fc034183 100644
--- a/arch/arm/boot/dts/tegra20-acer-a500-picasso.dts
+++ b/arch/arm/boot/dts/tegra20-acer-a500-picasso.dts
@@ -450,6 +450,8 @@ touchscreen@4c {
 
 			vdda-supply = <&vdd_3v3_sys>;
 			vdd-supply  = <&vdd_3v3_sys>;
+
+			atmel,wakeup-method = <1>;
 		};
 
 		gyroscope@68 {