ARM: dts: am437x: cm-t43: add touchscreen support

AM437x has an internal touchscreen controller. Add support for it
on cm-t43.

Signed-off-by: Nikita Kiryanov <nikita@compulab.co.il>
Cc: Tony Lindgren <tony@atomide.com>
Cc: Benoit Cousson <bcousson@baylibre.com>
Cc: Rob Herring <robh@kernel.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Pawel Moll <pawel.moll@arm.com>
Cc: Igor Grinberg <grinberg@compulab.co.il>
Cc: Dmitry Lifshitz <lifshitz@compulab.co.il>
Cc: Ian Campbell <ijc+devicetree@hellion.org.uk>
Signed-off-by: Tony Lindgren <tony@atomide.com>

diff --git a/arch/arm/boot/dts/am437x-cm-t43.dts b/arch/arm/boot/dts/am437x-cm-t43.dts
index 1011accb56e6ab14c2f3dad0cc00da7291e1b1f2..8677f4cce9e9e01553c317791207bcabf88ab18d 100644 (file)
--- a/arch/arm/boot/dts/am437x-cm-t43.dts
+++ b/arch/arm/boot/dts/am437x-cm-t43.dts
@@ -398,6 +398,20 @@
        status = "okay";
 };
 
+&tscadc {
+       status = "okay";
+       tsc {
+               ti,wires = <4>;
+               ti,x-plate-resistance = <200>;
+               ti,coordiante-readouts = <5>;
+               ti,wire-config = <0x00 0x11 0x22 0x33>;
+       };
+
+       adc {
+               ti,adc-channels = <4 5 6 7>;
+       };
+};
+
 &cpu {
        cpu0-supply = <&dcdc2>;
        operating-points = <1000000 1330000>,