ARM: mxs: Enable touchscreen on m28evk

This patch adds necessary DT properties to m28evk to enable touchscreen
in the LRADC block. The M28EVK is shipped with 4-wire resistive touchscreen.

Signed-off-by: Marek Vasut <marex@denx.de>
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>

diff --git a/arch/arm/boot/dts/imx28-m28evk.dts b/arch/arm/boot/dts/imx28-m28evk.dts
index 3bab6b0..6ce3d17 100644 (file)
--- a/arch/arm/boot/dts/imx28-m28evk.dts
+++ b/arch/arm/boot/dts/imx28-m28evk.dts
@@ -177,6 +177,7 @@
 
                        lradc@80050000 {
                                status = "okay";
+                               fsl,lradc-touchscreen-wires = <4>;
                        };
 
                        duart: serial@80074000 {