soc/gr716a: Enable GPIO support on LEON GR716A

GR716A has two GRGPIO2 controllers.

This adds the GPIO controller description to the DTS and
makes the GPIO option available in the kernel configuration.

Signed-off-by: Martin Åberg <martin.aberg@gaisler.com>

boards/gaisler/gr716a_mini/gr716a_mini.dts

@@ -35,3 +35,11 @@
 		jedec-id = [c2 20 19];
 	};
 };
+
+&gpio0 {
+	status = "okay";
+};
+
+&gpio1 {
+	status = "okay";
+};

boards/gaisler/gr716a_mini/gr716a_mini.yaml

@@ -10,6 +10,7 @@ toolchain:
 supported:
   - netif
   - spi
+  - gpio
 testing:
   ignore_tags:
     - net

dts/sparc/gaisler/gr716a.dtsi

@@ -5,6 +5,7 @@
  */
 
 #include "skeleton.dtsi"
+#include <dt-bindings/gpio/gpio.h>
 
 / {
 	cpus {
@@ -107,5 +108,23 @@
 			#size-cells = <0>;
 			status = "disabled";
 		};
+
+		gpio0: gpio@8030c000 {
+			interrupts = <17>;
+			reg = <0x8030c000 0x1000>;
+			compatible = "gaisler,grgpio";
+			gpio-controller;
+			#gpio-cells = <2>;
+			status = "disabled";
+		};
+
+		gpio1: gpio@8030d000 {
+			interrupts = <16>;
+			reg = <0x8030d000 0x1000>;
+			compatible = "gaisler,grgpio";
+			gpio-controller;
+			#gpio-cells = <2>;
+			status = "disabled";
+		};
 	};
 };