diff --git a/arch/sandbox/dts/test.dts b/arch/sandbox/dts/test.dts
index 6803c00..02e37ab 100644
--- a/arch/sandbox/dts/test.dts
+++ b/arch/sandbox/dts/test.dts
@@ -905,6 +905,31 @@
 
 	pinctrl {
 		compatible = "sandbox,pinctrl";
+
+		pinctrl-names = "default";
+		pinctrl-0 = <&gpios>;
+
+		gpios: gpios {
+			gpio0 {
+				pins = "GPIO0";
+				bias-pull-up;
+				input-disable;
+			};
+			gpio1 {
+				pins = "GPIO1";
+				output-high;
+				drive-open-drain;
+			};
+			gpio2 {
+				pins = "GPIO2";
+				bias-pull-down;
+				input-enable;
+			};
+			gpio3 {
+				pins = "GPIO3";
+				bias-disable;
+			};
+		};
 	};
 
 	hwspinlock@0 {
diff --git a/drivers/pinctrl/pinctrl-sandbox.c b/drivers/pinctrl/pinctrl-sandbox.c
index d1a21f0..3ee75fb 100644
--- a/drivers/pinctrl/pinctrl-sandbox.c
+++ b/drivers/pinctrl/pinctrl-sandbox.c
@@ -14,7 +14,11 @@
 	"SDA",
 	"TX",
 	"RX",
-	"W1"
+	"W1",
+	"GPIO0",
+	"GPIO1",
+	"GPIO2",
+	"GPIO3",
 };
 
 static const char * const sandbox_pins_muxing[] = {
@@ -23,6 +27,10 @@
 	"Uart TX",
 	"Uart RX",
 	"1-wire gpio",
+	"gpio",
+	"gpio",
+	"gpio",
+	"gpio",
 };
 
 static const char * const sandbox_groups[] = {
@@ -38,6 +46,10 @@
 	"serial",
 	"spi",
 	"w1",
+	"gpio",
+	"gpio",
+	"gpio",
+	"gpio",
 };
 
 static const struct pinconf_param sandbox_conf_params[] = {
diff --git a/test/py/tests/test_pinmux.py b/test/py/tests/test_pinmux.py
index 25394f1..5ca0b4b 100644
--- a/test/py/tests/test_pinmux.py
+++ b/test/py/tests/test_pinmux.py
@@ -22,11 +22,15 @@
 def test_pinmux_status_all(u_boot_console):
     """Test that 'pinmux status -a' displays pin's muxing."""
     output = u_boot_console.run_command('pinmux status -a')
-    assert ('SCL       : I2C SCL' in output)
-    assert ('SDA       : I2C SDA' in output)
-    assert ('TX        : Uart TX' in output)
-    assert ('RX        : Uart RX' in output)
-    assert ('W1        : 1-wire gpio' in output)
+    assert ('SCL       : I2C SCL.' in output)
+    assert ('SDA       : I2C SDA.' in output)
+    assert ('TX        : Uart TX.' in output)
+    assert ('RX        : Uart RX.' in output)
+    assert ('W1        : 1-wire gpio.' in output)
+    assert ('GPIO0     : gpio bias-pull-up input-disable.' in output)
+    assert ('GPIO1     : gpio drive-open-drain.' in output)
+    assert ('GPIO2     : gpio bias-pull-down input-enable.' in output)
+    assert ('GPIO3     : gpio bias-disable.' in output)
 
 @pytest.mark.buildconfigspec('cmd_pinmux')
 @pytest.mark.boardspec('sandbox')
@@ -59,8 +63,12 @@
     """Test that 'pinmux status' displays selected pincontroller's pin
     muxing descriptions."""
     output = u_boot_console.run_command('pinmux status')
-    assert ('SCL       : I2C SCL' in output)
-    assert ('SDA       : I2C SDA' in output)
-    assert ('TX        : Uart TX' in output)
-    assert ('RX        : Uart RX' in output)
-    assert ('W1        : 1-wire gpio' in output)
+    assert ('SCL       : I2C SCL.' in output)
+    assert ('SDA       : I2C SDA.' in output)
+    assert ('TX        : Uart TX.' in output)
+    assert ('RX        : Uart RX.' in output)
+    assert ('W1        : 1-wire gpio.' in output)
+    assert ('GPIO0     : gpio bias-pull-up input-disable.' in output)
+    assert ('GPIO1     : gpio drive-open-drain.' in output)
+    assert ('GPIO2     : gpio bias-pull-down input-enable.' in output)
+    assert ('GPIO3     : gpio bias-disable.' in output)