--- a/arch/arm/boot/dts/sun7i-a20-olinuxino-micro.dts
+++ b/arch/arm/boot/dts/sun7i-a20-olinuxino-micro.dts
@@ -267,6 +267,10 @@
        status = "okay";
 };

+&rtp {
+ allwinner,ts-attached;
+};
+
 &spi1 {
        pinctrl-names = "default";
        pinctrl-0 = <&spi1_pins_a>,