diff --git a/dts/arm/atmel/sam4s.dtsi b/dts/arm/atmel/sam4s.dtsi
index 5608abb9ac0..7b30cb25cb7 100644
--- a/dts/arm/atmel/sam4s.dtsi
+++ b/dts/arm/atmel/sam4s.dtsi
@@ -6,6 +6,7 @@
 
 #include <arm/armv7-m.dtsi>
 #include <dt-bindings/i2c/i2c.h>
+#include <dt-bindings/gpio/gpio.h>
 
 / {
 	cpus {
@@ -92,6 +93,8 @@
 			interrupts = <11 1>;
 			peripheral-id = <11>;
 			label = "PORTA";
+			gpio-controller;
+			#gpio-cells = <2>;
 		};
 
 		portb: gpio@400E1000 {
@@ -100,6 +103,8 @@
 			interrupts = <12 1>;
 			peripheral-id = <12>;
 			label = "PORTB";
+			gpio-controller;
+			#gpio-cells = <2>;
 		};
 
 		portc: gpio@400E1200 {
@@ -108,6 +113,8 @@
 			interrupts = <13 1>;
 			peripheral-id = <13>;
 			label = "PORTC";
+			gpio-controller;
+			#gpio-cells = <2>;
 		};
 	};
 };
diff --git a/dts/arm/atmel/samd.dtsi b/dts/arm/atmel/samd.dtsi
index dc5425e15d1..58bf7275de9 100644
--- a/dts/arm/atmel/samd.dtsi
+++ b/dts/arm/atmel/samd.dtsi
@@ -5,6 +5,7 @@
  */
 
 #include <arm/armv6-m.dtsi>
+#include <dt-bindings/gpio/gpio.h>
 
 / {
 	cpus {
@@ -113,12 +114,16 @@
 			compatible = "atmel,sam0-gpio";
 			reg = <0x41004400 0x80>;
 			label = "PORTA";
+			gpio-controller;
+			#gpio-cells = <2>;
 		};
 
 		portb: gpio@41004480 {
 			compatible = "atmel,sam0-gpio";
 			reg = <0x41004480 0x80>;
 			label = "PORTB";
+			gpio-controller;
+			#gpio-cells = <2>;
 		};
 
 		usb0: usb@41005000 {
diff --git a/dts/arm/atmel/same70.dtsi b/dts/arm/atmel/same70.dtsi
index b64aa76b58d..e86cccb47ed 100644
--- a/dts/arm/atmel/same70.dtsi
+++ b/dts/arm/atmel/same70.dtsi
@@ -7,6 +7,7 @@
 
 #include <arm/armv7-m.dtsi>
 #include <dt-bindings/i2c/i2c.h>
+#include <dt-bindings/gpio/gpio.h>
 
 / {
 	cpus {
@@ -163,6 +164,8 @@
 			interrupts = <10 1>;
 			peripheral-id = <10>;
 			label = "PORTA";
+			gpio-controller;
+			#gpio-cells = <2>;
 		};
 
 		portb: gpio@400E1000 {
@@ -171,6 +174,8 @@
 			interrupts = <11 1>;
 			peripheral-id = <11>;
 			label = "PORTB";
+			gpio-controller;
+			#gpio-cells = <2>;
 		};
 
 		portc: gpio@400E1200 {
@@ -179,6 +184,8 @@
 			interrupts = <12 1>;
 			peripheral-id = <12>;
 			label = "PORTC";
+			gpio-controller;
+			#gpio-cells = <2>;
 		};
 
 		portd: gpio@400E1400 {
@@ -187,6 +194,8 @@
 			interrupts = <16 1>;
 			peripheral-id = <16>;
 			label = "PORTD";
+			gpio-controller;
+			#gpio-cells = <2>;
 		};
 
 		porte: gpio@400E1600 {
@@ -195,6 +204,8 @@
 			interrupts = <17 1>;
 			peripheral-id = <17>;
 			label = "PORTE";
+			gpio-controller;
+			#gpio-cells = <2>;
 		};
 	};
 };
diff --git a/dts/bindings/gpio/atmel,sam-gpio.yaml b/dts/bindings/gpio/atmel,sam-gpio.yaml
index ee433bd4d2c..78c5011bba5 100644
--- a/dts/bindings/gpio/atmel,sam-gpio.yaml
+++ b/dts/bindings/gpio/atmel,sam-gpio.yaml
@@ -37,3 +37,8 @@ properties:
       description: peripheral ID
       generation: define
       category: required
+
+"#cells":
+  - pin
+  - flags
+...
diff --git a/dts/bindings/gpio/atmel,sam0-gpio.yaml b/dts/bindings/gpio/atmel,sam0-gpio.yaml
index 90235b63c71..3d2a7439f8b 100644
--- a/dts/bindings/gpio/atmel,sam0-gpio.yaml
+++ b/dts/bindings/gpio/atmel,sam0-gpio.yaml
@@ -25,3 +25,8 @@ properties:
       category: required
       description: Human readable string describing the device (used by Zephyr for API name)
       generation: define
+
+"#cells":
+  - pin
+  - flags
+...