dts: add KPP driver bindings.

add KPP driver bindings.

Signed-off-by: Qiang Zhang <qiang.zhang_6@nxp.com>

Author: mcuxted

dts/arm/nxp/nxp_rt118x.dtsi

@@ -1253,6 +1253,16 @@
 		#size-cells = <0>;
 	};
 
+	kpp: kpp@2a00000 {
+		compatible = "nxp,mcux-kpp";
+		reg = <0x2A00000 0x1000>;
+		interrupts = <211 0>;
+		#address-cells = <1>;
+		#size-cells = <0>;
+		status = "disabled";
+		clocks = <&ccm IMX_CCM_KPP_CLK 0x0 0>;
+	};
+
 	lpspi2: spi@4370000 {
 		compatible = "nxp,lpspi";
 		reg = <0x4370000 0x4000>;

dts/bindings/input/nxp,mcux-kpp.yaml

@@ -0,0 +1,18 @@
+# Copyright 2025 NXP
+# SPDX-License-Identifier: Apache-2.0
+
+description: NXP KPP controller
+
+compatible: "nxp,mcux-kpp"
+
+include: [base.yaml, pinctrl-device.yaml]
+
+properties:
+  reg:
+    required: true
+
+  interrupts:
+    required: true
+
+  clocks:
+    required: true