diff --git a/test/dm/test.dts b/test/dm/test.dts
index fb0272a..33f2c00 100644
--- a/test/dm/test.dts
+++ b/test/dm/test.dts
@@ -22,6 +22,11 @@
 		ping-expect = <0>;
 		ping-add = <0>;
 		u-boot,dm-pre-reloc;
+		test-gpios = <&gpio_a 1>, <&gpio_a 4>, <&gpio_b 5 0 3 2 1>,
+			<0>, <&gpio_a 12>;
+		test2-gpios = <&gpio_a 1>, <&gpio_a 4>, <&gpio_b 6 1 3 2 1>,
+			<&gpio_b 7 2 3 2 1>, <&gpio_b 8 4 3 2 1>,
+			<&gpio_b 9 0xc 3 2 1>;
 	};
 
 	junk {
@@ -83,12 +88,16 @@
 
 	gpio_a: base-gpios {
 		compatible = "sandbox,gpio";
+		gpio-controller;
+		#gpio-cells = <1>;
 		gpio-bank-name = "a";
 		num-gpios = <20>;
 	};
 
-	extra-gpios {
+	gpio_b: extra-gpios {
 		compatible = "sandbox,gpio";
+		gpio-controller;
+		#gpio-cells = <5>;
 		gpio-bank-name = "b";
 		num-gpios = <10>;
 	};