[PATCH v2 1/1] arm64: dts: rockchip: Enable touchscreen on UNIHIKER M10 V1.2

[Miotsuki Mizuno]

From: Mizuno Miotsuki <founder@xxxxxxxxxxx>

Describe the onboard NS2009 resistive touchscreen at I2C2 address 0x48.
Use the tested inverted Y direction and raw Z1 contact threshold of 150.
Retain the native 12-bit ADC coordinate range.

The I2C2 controller is enabled by a separate board preparation patch.
This device node is independent of the display binding and DTS changes,
and depends on the separately submitted NS2009 binding and driver.

Link: https://lore.kernel.org/r/20261009144729.85832-1-founder@xxxxxxxxxxx

Signed-off-by: Mizuno Miotsuki <founder@xxxxxxxxxxx>
---
 arch/arm64/boot/dts/rockchip/rk3308-unihiker-m10-v1.2.dts | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/arch/arm64/boot/dts/rockchip/rk3308-unihiker-m10-v1.2.dts b/arch/arm64/boot/dts/rockchip/rk3308-unihiker-m10-v1.2.dts
index 0c03f118378a..7ae3cc8a86e0 100644
--- a/arch/arm64/boot/dts/rockchip/rk3308-unihiker-m10-v1.2.dts
+++ b/arch/arm64/boot/dts/rockchip/rk3308-unihiker-m10-v1.2.dts
@@ -134,6 +134,13 @@ &emmc {
 &i2c2 {
 	clock-frequency = <400000>;
 	status = "okay";
+
+	touchscreen@48 {
+		compatible = "nsiway,ns2009";
+		reg = <0x48>;
+		touchscreen-min-pressure = <150>;
+		touchscreen-inverted-y;
+	};
 };
 
 &io_domains {
-- 
2.56.0