diff --git a/dts/arm/silabs/efr32bg2x.dtsi b/dts/arm/silabs/efr32bg2x.dtsi
index 582163d0d50..776383e682f 100644
--- a/dts/arm/silabs/efr32bg2x.dtsi
+++ b/dts/arm/silabs/efr32bg2x.dtsi
@@ -9,6 +9,7 @@
 #include <dt-bindings/gpio/gpio.h>
 #include <dt-bindings/i2c/i2c.h>
 #include <dt-bindings/pinctrl/gecko-pinctrl.h>
+#include <dt-bindings/adc/adc.h>
 
 / {
 	chosen {
diff --git a/tests/drivers/adc/adc_api/boards/efr32bg22_brd4184a.overlay b/tests/drivers/adc/adc_api/boards/efr32bg22_brd4184a.overlay
new file mode 100644
index 00000000000..baf8886de99
--- /dev/null
+++ b/tests/drivers/adc/adc_api/boards/efr32bg22_brd4184a.overlay
@@ -0,0 +1,34 @@
+/*
+ * SPDX-License-Identifier: Apache-2.0
+ *
+ * Copyright (c) 2023 Antmicro <www.antmicro.com>
+ */
+
+/ {
+	zephyr,user {
+		io-channels = <&adc0 0>, <&adc0 1>;
+	};
+};
+
+&adc0 {
+	#address-cells = <1>;
+	#size-cells = <0>;
+
+	channel@0 {
+		reg = <0>;
+		zephyr,gain = "ADC_GAIN_1";
+		zephyr,reference = "ADC_REF_INTERNAL";
+		zephyr,acquisition-time = <ADC_ACQ_TIME_DEFAULT>;
+		zephyr,resolution = <12>;
+		zephyr,input-positive = <0x11>;
+	};
+
+	channel@1 {
+		reg = <1>;
+		zephyr,gain = "ADC_GAIN_1";
+		zephyr,reference = "ADC_REF_INTERNAL";
+		zephyr,acquisition-time = <ADC_ACQ_TIME_DEFAULT>;
+		zephyr,resolution = <12>;
+		zephyr,input-positive = <0x01>;
+	};
+};