var

Author: soburi

documentation/variants.md

@@ -90,6 +90,20 @@ uses [the Arduino header definitions](https://github.com/zephyrproject-rtos/zeph
 };
 ```
 
+### Configure GPIO devices
+
+The `gpios` node lists the GPIO ports to use.
+Pin numbers will be assigned sequentially starting from 0 to the GPIOs of the ports specified here.
+For example, if gpio0 and gpio1, each with 16 outputs, are specified, pin 1 of gpio1 will be assigned 17.
+
+```
+/ {
+       zephyr,user {
+               gpios = <&gpio0>, <&gpio1>;
+       };
+};
+```
+
 ### Configure Serial devices
 
 The `serials` node defines the Serial devices to use.

variants/arduino_mkrzero/arduino_mkrzero.overlay

@@ -54,6 +54,7 @@
 				<&adc 6>,
 				<&adc 7>;
 
+		gpios = <&porta>, <&portb>;
 		serials = <&sercom5>;
 		i2cs = <&sercom0>;
 	};

variants/arduino_nano_33_ble/arduino_nano_33_ble.overlay

@@ -59,6 +59,7 @@
 				<&adc 4>,
 				<&adc 1>;
 
+		gpios = <&gpio0>, <&gpio1>;
 		serials = <&uart0>;
 		i2cs = <&arduino_nano_i2c>;
 	};

variants/arduino_nano_33_ble_sense/arduino_nano_33_ble_sense.overlay

@@ -59,6 +59,7 @@
 				<&adc 4>,
 				<&adc 1>;
 
+		gpios = <&gpio0>, <&gpio1>;
 		serials = <&uart0>;
 		i2cs = <&arduino_nano_i2c>;
 	};

variants/arduino_nano_33_iot/arduino_nano_33_iot.overlay

@@ -60,6 +60,7 @@
 				<&adc 6>,
 				<&adc 7>;
 
+		gpios = <&porta>, <&portb>;
 		serials = <&sercom5>;
 		i2cs = <&arduino_nano_i2c>;
 	};

variants/beagleconnect_freedom/beagleconnect_freedom.overlay

@@ -58,6 +58,8 @@
  			    <&gpio0 28 GPIO_ACTIVE_HIGH>; /* D3  - MB1 CS - A5 */
 
  	builtin-led-gpios = <&gpio0 18 GPIO_ACTIVE_HIGH>;	/*  2.4GHz TX/RX  */
+
+	gpios = <&gpio0>;
  	serials = <&uart0 &uart1>;
  	i2cs = <&i2c0>;
 	spis = <&spi0>;

variants/cc3220sf_launchxl/cc3220sf_launchxl.overlay

@@ -30,6 +30,8 @@
 				<&boosterpack_header 31 0>,	/* GPIO_24 */
 				<&boosterpack_header 32 0>;	/* GPIO_23 */
 		builtin-led-gpios = <&boosterpack_header 10 0>;	/*  GREEN_LED  */
+
+		gpios = <&gpioa0>, <&gpioa1>, <&gpioa2>, <&gpioa3>;
 		serials = <&boosterpack_serial>;
 		i2cs = <&boosterpack_i2c>;
 	};

variants/nrf52840dk_nrf52840/nrf52840dk_nrf52840.overlay

@@ -52,6 +52,8 @@
 				<&arduino_adc 3>,
 				<&arduino_adc 4>,
 				<&arduino_adc 5>;
+
+		gpios = <&gpio0>, <&gpio1>;
 	};
 };
 

variants/nrf9160dk_nrf9160/nrf9160dk_nrf9160.overlay

@@ -57,6 +57,8 @@
 			<&arduino_adc 3>,
 			<&arduino_adc 4>,
 			<&arduino_adc 5>;
+
+		gpios = <&gpio0>;
 	};
 };
 

variants/rpi_pico/rpi_pico.overlay

@@ -78,6 +78,7 @@
 				<&adc 1>,
 				<&adc 2>;
 
+		gpios = <&gpio0>;
 		serials = <&pico_serial>;
 		i2cs = <&pico_i2c0>;
 		spis = <&pico_spi>;