ARM: dts: add GPIO support for Airoha EN7523

Airoha's GPIO controller on their ARM EN7523 SoCs consists of two banks of 32
GPIOs
Signed-off-by: NJohn Crispin <john@phrozen.org>
Signed-off-by: NFelix Fietkau <nbd@nbd.name>
Link: https://lore.kernel.org/r/20220130145116.88406-14-nbd@nbd.nameSigned-off-by: NMatthias Brugger <matthias.bgg@gmail.com>

arch/arm/boot/dts/en7523-evb.dts

@@ -25,3 +25,11 @@
 		reg = <0x80000000 0x20000000>;
 	};
 };
+
+&gpio0 {
+	status = "okay";
+};
+
+&gpio1 {
+	status = "okay";
+};

arch/arm/boot/dts/en7523.dtsi

@@ -2,6 +2,7 @@
 
 #include <dt-bindings/interrupt-controller/irq.h>
 #include <dt-bindings/interrupt-controller/arm-gic.h>
+#include <dt-bindings/gpio/gpio.h>
 
 / {
 	interrupt-parent = <&gic>;
@@ -114,4 +115,24 @@
 		clock-frequency = <1843200>;
 		status = "okay";
 	};
+
+	gpio0: gpio@1fbf0200 {
+		compatible = "airoha,en7523-gpio";
+		reg = <0x1fbf0204 0x4>,
+		      <0x1fbf0200 0x4>,
+		      <0x1fbf0220 0x4>,
+		      <0x1fbf0214 0x4>;
+		gpio-controller;
+		#gpio-cells = <2>;
+	};
+
+	gpio1: gpio@1fbf0270 {
+		compatible = "airoha,en7523-gpio";
+		reg = <0x1fbf0270 0x4>,
+		      <0x1fbf0260 0x4>,
+		      <0x1fbf0264 0x4>,
+		      <0x1fbf0278 0x4>;
+		gpio-controller;
+		#gpio-cells = <2>;
+	};
 };