boards: renesas: add on-board button support on Renesas RA boards

Add gpio keys support for these boards: ek_ra2a1, ek_ra4e2, ek_ra4m2,
ek_ra4m3, ek_ra4w1, ek_ra6e2, ek_ra6m1, ek_ra6m2, ek_ra6m3, ek_ra6m4,
ek_ra6m5, ek_ra8d1, ek_ra8m1, fpb_ra6e1, fpb_ra6e2

Signed-off-by: The Nguyen <the.nguyen.yf@renesas.com>

boards/renesas/ek_ra2a1/ek_ra2a1.dts

@@ -7,6 +7,7 @@
 
 #include <renesas/ra/ra2/r7fa2a1ab3cfm.dtsi>
 #include <zephyr/dt-bindings/gpio/gpio.h>
+#include <zephyr/dt-bindings/input/input-event-codes.h>
 
 #include "ek_ra2a1-pinctrl.dtsi"
 
@@ -29,8 +30,18 @@
 		};
 	};
 
+	buttons {
+		compatible = "gpio-keys";
+		button0: s1 {
+			gpios = <&ioport2 6 (GPIO_PULL_UP | GPIO_ACTIVE_LOW)>;
+			label = "Push button switch 1";
+			zephyr,code = <INPUT_KEY_0>;
+		};
+	};
+
 	aliases {
 		led0 = &led1;
+		sw0 = &button0;
 	};
 };
 
@@ -69,3 +80,8 @@
 &ioport1 {
 	status = "okay";
 };
+
+&port_irq6 {
+	interrupts = <29 3>;
+	status = "okay";
+};

boards/renesas/ek_ra4e2/ek_ra4e2.dts

@@ -7,6 +7,7 @@
 
 #include <renesas/ra/ra4/r7fa4e2b93cfm.dtsi>
 #include <dt-bindings/gpio/gpio.h>
+#include <dt-bindings/input/input-event-codes.h>
 #include <zephyr/dt-bindings/adc/adc.h>
 #include "ek_ra4e2-pinctrl.dtsi"
 
@@ -38,8 +39,24 @@
 		};
 	};
 
+	buttons {
+		compatible = "gpio-keys";
+		button0: s1 {
+			gpios = <&ioport0 5 (GPIO_PULL_UP | GPIO_ACTIVE_LOW)>;
+			label = "Push button switch 1";
+			zephyr,code = <INPUT_KEY_0>;
+		};
+		button1: s2 {
+			gpios = <&ioport3 4 (GPIO_PULL_UP | GPIO_ACTIVE_LOW)>;
+			label = "Push button switch 2";
+			zephyr,code = <INPUT_KEY_1>;
+		};
+	};
+
 	aliases {
 		led0 = &led1;
+		sw0 = &button0;
+		sw1 = &button1;
 	};
 
 	transceiver0: can-phy0 {
@@ -78,6 +95,10 @@
 	};
 };
 
+&ioport0 {
+	status = "okay";
+};
+
 &ioport1 {
 	status = "okay";
 };
@@ -118,3 +139,17 @@
 	pinctrl-0 = <&adc0_default>;
 	pinctrl-names = "default";
 };
+
+&ioport3 {
+	status = "okay";
+};
+
+&port_irq9 {
+	interrupts = <4 12>;
+	status = "okay";
+};
+
+&port_irq10 {
+	interrupts = <5 12>;
+	status = "okay";
+};

boards/renesas/ek_ra4m2/ek_ra4m2.dts

@@ -7,6 +7,7 @@
 
 #include <renesas/ra/ra4/r7fa4m2ad3cfp.dtsi>
 #include <dt-bindings/gpio/gpio.h>
+#include <dt-bindings/input/input-event-codes.h>
 #include <zephyr/dt-bindings/adc/adc.h>
 #include "ek_ra4m2-pinctrl.dtsi"
 
@@ -37,8 +38,24 @@
 		};
 	};
 
+	buttons {
+		compatible = "gpio-keys";
+		button0: s1 {
+			gpios = <&ioport0 5 (GPIO_PULL_UP | GPIO_ACTIVE_LOW)>;
+			label = "Push button switch 1";
+			zephyr,code = <INPUT_KEY_0>;
+		};
+		button1: s2 {
+			gpios = <&ioport0 6 (GPIO_PULL_UP | GPIO_ACTIVE_LOW)>;
+			label = "Push button switch 2";
+			zephyr,code = <INPUT_KEY_1>;
+		};
+	};
+
 	aliases {
 		led0 = &led1;
+		sw0 = &button0;
+		sw1 = &button1;
 	};
 };
 
@@ -70,6 +87,10 @@
 	};
 };
 
+&ioport0 {
+	status = "okay";
+};
+
 &ioport4 {
 	status = "okay";
 };
@@ -85,3 +106,13 @@
 	pinctrl-0 = <&adc0_default>;
 	pinctrl-names = "default";
 };
+
+&port_irq10 {
+	interrupts = <41 12>;
+	status = "okay";
+};
+
+&port_irq11 {
+	interrupts = <42 12>;
+	status = "okay";
+};

boards/renesas/ek_ra4m3/ek_ra4m3.dts

@@ -7,6 +7,7 @@
 
 #include <renesas/ra/ra4/r7fa4m3af3cfb.dtsi>
 #include <dt-bindings/gpio/gpio.h>
+#include <dt-bindings/input/input-event-codes.h>
 #include <zephyr/dt-bindings/adc/adc.h>
 #include "ek_ra4m3-pinctrl.dtsi"
 
@@ -37,8 +38,24 @@
 		};
 	};
 
+	buttons {
+		compatible = "gpio-keys";
+		button0: s1 {
+			gpios = <&ioport0 5 (GPIO_PULL_UP | GPIO_ACTIVE_LOW)>;
+			label = "Push button switch 1";
+			zephyr,code = <INPUT_KEY_0>;
+		};
+		button1: s2 {
+			gpios = <&ioport0 6 (GPIO_PULL_UP | GPIO_ACTIVE_LOW)>;
+			label = "Push button switch 2";
+			zephyr,code = <INPUT_KEY_1>;
+		};
+	};
+
 	aliases {
 		led0 = &led1;
+		sw0 = &button0;
+		sw1 = &button1;
 	};
 };
 
@@ -70,6 +87,10 @@
 	};
 };
 
+&ioport0 {
+	status = "okay";
+};
+
 &ioport4 {
 	status = "okay";
 };
@@ -85,3 +106,13 @@
 	pinctrl-0 = <&adc0_default>;
 	pinctrl-names = "default";
 };
+
+&port_irq10 {
+	interrupts = <41 12>;
+	status = "okay";
+};
+
+&port_irq11 {
+	interrupts = <42 12>;
+	status = "okay";
+};

boards/renesas/ek_ra4w1/ek_ra4w1.dts

@@ -7,6 +7,7 @@
 
 #include <renesas/ra/ra4/r7fa4w1ad2cng.dtsi>
 #include <dt-bindings/gpio/gpio.h>
+#include <dt-bindings/input/input-event-codes.h>
 #include <zephyr/dt-bindings/adc/adc.h>
 #include "ek_ra4w1-pinctrl.dtsi"
 
@@ -35,8 +36,18 @@
 		};
 	};
 
+	buttons {
+		compatible = "gpio-keys";
+		button0: s1 {
+			gpios = <&ioport4 2 (GPIO_PULL_UP | GPIO_ACTIVE_LOW)>;
+			label = "Push button switch 1";
+			zephyr,code = <INPUT_KEY_0>;
+		};
+	};
+
 	aliases {
 		led0 = &led1;
+		sw0 = &button0;
 	};
 };
 
@@ -77,3 +88,8 @@
 	pinctrl-0 = <&adc0_default>;
 	pinctrl-names = "default";
 };
+
+&port_irq4 {
+	interrupts = <31 12>;
+	status = "okay";
+};

boards/renesas/ek_ra6e2/ek_ra6e2.dts

@@ -7,6 +7,7 @@
 
 #include <renesas/ra/ra6/r7fa6e2bb3cfm.dtsi>
 #include <dt-bindings/gpio/gpio.h>
+#include <dt-bindings/input/input-event-codes.h>
 #include <zephyr/dt-bindings/adc/adc.h>
 
 #include "ek_ra6e2-pinctrl.dtsi"
@@ -39,8 +40,24 @@
 		};
 	};
 
+	buttons {
+		compatible = "gpio-keys";
+		button0: s1 {
+			gpios = <&ioport0 5 (GPIO_PULL_UP | GPIO_ACTIVE_LOW)>;
+			label = "Push button switch 1";
+			zephyr,code = <INPUT_KEY_0>;
+		};
+		button1: s2 {
+			gpios = <&ioport3 4 (GPIO_PULL_UP | GPIO_ACTIVE_LOW)>;
+			label = "Push button switch 2";
+			zephyr,code = <INPUT_KEY_1>;
+		};
+	};
+
 	aliases {
 		led0 = &led1;
+		sw0 = &button0;
+		sw1 = &button1;
 	};
 };
 
@@ -54,6 +71,10 @@
 	};
 };
 
+&ioport0 {
+	status = "okay";
+};
+
 &ioport1 {
 	status = "okay";
 };
@@ -68,6 +89,10 @@
 	status = "okay";
 };
 
+&ioport3 {
+	status = "okay";
+};
+
 &ioport4 {
 	status = "okay";
 };
@@ -133,3 +158,13 @@
 	pinctrl-0 = <&adc0_default>;
 	pinctrl-names = "default";
 };
+
+&port_irq9 {
+	interrupts = <4 12>;
+	status = "okay";
+};
+
+&port_irq10 {
+	interrupts = <5 12>;
+	status = "okay";
+};

boards/renesas/ek_ra6m1/ek_ra6m1.dts

@@ -7,6 +7,7 @@
 
 #include <renesas/ra/ra6/r7fa6m1ad3cfp.dtsi>
 #include <dt-bindings/gpio/gpio.h>
+#include <dt-bindings/input/input-event-codes.h>
 #include <zephyr/dt-bindings/adc/adc.h>
 
 #include "ek_ra6m1-pinctrl.dtsi"
@@ -31,8 +32,18 @@
 		};
 	};
 
+	buttons {
+		compatible = "gpio-keys";
+		button0: s1 {
+			gpios = <&ioport4 15 (GPIO_PULL_UP | GPIO_ACTIVE_LOW)>;
+			label = "Push button switch 1";
+			zephyr,code = <INPUT_KEY_0>;
+		};
+	};
+
 	aliases {
 		led0 = &led1;
+		sw0 = &button0;
 	};
 };
 
@@ -67,6 +78,10 @@
 	status = "okay";
 };
 
+&ioport4 {
+	status = "okay";
+};
+
 &xtal {
 	clock-frequency = <DT_FREQ_M(12)>;
 	mosel = <0>;
@@ -94,3 +109,8 @@
 	pinctrl-0 = <&adc0_default>;
 	pinctrl-names = "default";
 };
+
+&port_irq8 {
+	interrupts = <41 12>;
+	status = "okay";
+};

boards/renesas/ek_ra6m2/ek_ra6m2.dts

@@ -7,6 +7,7 @@
 
 #include <renesas/ra/ra6/r7fa6m2af3cfb.dtsi>
 #include <dt-bindings/gpio/gpio.h>
+#include <dt-bindings/input/input-event-codes.h>
 #include <zephyr/dt-bindings/adc/adc.h>
 
 #include "ek_ra6m2-pinctrl.dtsi"
@@ -31,8 +32,18 @@
 		};
 	};
 
+	buttons {
+		compatible = "gpio-keys";
+		button0: s1 {
+			gpios = <&ioport1 5 (GPIO_PULL_UP | GPIO_ACTIVE_LOW)>;
+			label = "Push button switch 1";
+			zephyr,code = <INPUT_KEY_0>;
+		};
+	};
+
 	aliases {
 		led0 = &led1;
+		sw0 = &button0;
 	};
 };
 
@@ -94,3 +105,8 @@
 	pinctrl-0 = <&adc0_default>;
 	pinctrl-names = "default";
 };
+
+&port_irq0 {
+	interrupts = <41 12>;
+	status = "okay";
+};

boards/renesas/ek_ra6m3/ek_ra6m3.dts

@@ -7,6 +7,7 @@
 
 #include <renesas/ra/ra6/r7fa6m3ah3cfc.dtsi>
 #include <dt-bindings/gpio/gpio.h>
+#include <dt-bindings/input/input-event-codes.h>
 #include <zephyr/dt-bindings/adc/adc.h>
 
 #include "ek_ra6m3-pinctrl.dtsi"
@@ -39,8 +40,24 @@
 		};
 	};
 
+	buttons {
+		compatible = "gpio-keys";
+		button0: s1 {
+			gpios = <&ioport0 9 (GPIO_PULL_UP | GPIO_ACTIVE_LOW)>;
+			label = "Push button switch 1";
+			zephyr,code = <INPUT_KEY_0>;
+		};
+		button1: s2 {
+			gpios = <&ioport0 8 (GPIO_PULL_UP | GPIO_ACTIVE_LOW)>;
+			label = "Push button switch 2";
+			zephyr,code = <INPUT_KEY_1>;
+		};
+	};
+
 	aliases {
 		led0 = &led1;
+		sw0 = &button0;
+		sw1 = &button1;
 	};
 };
 
@@ -50,6 +67,10 @@
 	status = "okay";
 };
 
+&ioport0 {
+	status = "okay";
+};
+
 &ioport1 {
 	status = "okay";
 };
@@ -120,3 +141,13 @@
 	pinctrl-0 = <&adc0_default>;
 	pinctrl-names = "default";
 };
+
+&port_irq12 {
+	interrupts = <41 12>;
+	status = "okay";
+};
+
+&port_irq13 {
+	interrupts = <42 12>;
+	status = "okay";
+};

boards/renesas/ek_ra6m4/ek_ra6m4.dts

@@ -7,6 +7,7 @@
 
 #include <renesas/ra/ra6/r7fa6m4af3cfb.dtsi>
 #include <dt-bindings/gpio/gpio.h>
+#include <dt-bindings/input/input-event-codes.h>
 #include <zephyr/dt-bindings/adc/adc.h>
 
 #include "ek_ra6m4-pinctrl.dtsi"
@@ -38,8 +39,24 @@
 		};
 	};
 
+	buttons {
+		compatible = "gpio-keys";
+		button0: s1 {
+			gpios = <&ioport0 5 (GPIO_PULL_UP | GPIO_ACTIVE_LOW)>;
+			label = "Push button switch 1";
+			zephyr,code = <INPUT_KEY_0>;
+		};
+		button1: s2 {
+			gpios = <&ioport0 6 (GPIO_PULL_UP | GPIO_ACTIVE_LOW)>;
+			label = "Push button switch 2";
+			zephyr,code = <INPUT_KEY_1>;
+		};
+	};
+
 	aliases {
 		led0 = &led1;
+		sw0 = &button0;
+		sw1 = &button1;
 	};
 };
 
@@ -70,6 +87,10 @@
 	status = "okay";
 };
 
+&ioport0 {
+	status = "okay";
+};
+
 &ioport4 {
 	status = "okay";
 };
@@ -103,3 +124,13 @@
 	pinctrl-0 = <&adc0_default>;
 	pinctrl-names = "default";
 };
+
+&port_irq10 {
+	interrupts = <41 12>;
+	status = "okay";
+};
+
+&port_irq11 {
+	interrupts = <42 12>;
+	status = "okay";
+};

boards/renesas/ek_ra6m5/ek_ra6m5.dts

@@ -7,6 +7,7 @@
 
 #include <renesas/ra/ra6/r7fa6m5bh3cfc.dtsi>
 #include <dt-bindings/gpio/gpio.h>
+#include <dt-bindings/input/input-event-codes.h>
 #include <zephyr/dt-bindings/adc/adc.h>
 
 #include "ek_ra6m5-pinctrl.dtsi"
@@ -38,8 +39,24 @@
 		};
 	};
 
+	buttons {
+		compatible = "gpio-keys";
+		button0: s1 {
+			gpios = <&ioport0 5 (GPIO_PULL_UP | GPIO_ACTIVE_LOW)>;
+			label = "Push button switch 1";
+			zephyr,code = <INPUT_KEY_0>;
+		};
+		button1: s2 {
+			gpios = <&ioport0 4 (GPIO_PULL_UP | GPIO_ACTIVE_LOW)>;
+			label = "Push button switch 2";
+			zephyr,code = <INPUT_KEY_1>;
+		};
+	};
+
 	aliases {
 		led0 = &led1;
+		sw0 = &button0;
+		sw1 = &button1;
 	};
 };
 
@@ -111,3 +128,13 @@
 	pinctrl-0 = <&adc0_default>;
 	pinctrl-names = "default";
 };
+
+&port_irq9 {
+	interrupts = <41 12>;
+	status = "okay";
+};
+
+&port_irq10 {
+	interrupts = <42 12>;
+	status = "okay";
+};

boards/renesas/ek_ra8d1/ek_ra8d1.dts

@@ -7,6 +7,7 @@
 
 #include <renesas/ra/ra8/r7fa8d1bhecbd.dtsi>
 #include <dt-bindings/gpio/gpio.h>
+#include <dt-bindings/input/input-event-codes.h>
 #include <zephyr/dt-bindings/adc/adc.h>
 #include "ek_ra8d1-pinctrl.dtsi"
 
@@ -40,8 +41,24 @@
 		};
 	};
 
+	buttons {
+		compatible = "gpio-keys";
+		button0: s1 {
+			gpios = <&ioport0 9 (GPIO_PULL_UP | GPIO_ACTIVE_LOW)>;
+			label = "Push button switch 1";
+			zephyr,code = <INPUT_KEY_0>;
+		};
+		button1: s2 {
+			gpios = <&ioport0 8 (GPIO_PULL_UP | GPIO_ACTIVE_LOW)>;
+			label = "Push button switch 2";
+			zephyr,code = <INPUT_KEY_1>;
+		};
+	};
+
 	aliases {
 		led0 = &led1;
+		sw0 = &button0;
+		sw1 = &button1;
 	};
 };
 
@@ -84,6 +101,10 @@
 	status = "okay";
 };
 
+&ioport0 {
+	status = "okay";
+};
+
 &ioport1 {
 	status = "okay";
 };
@@ -198,3 +219,13 @@
 	pinctrl-0 = <&adc0_default>;
 	pinctrl-names = "default";
 };
+
+&port_irq12 {
+	interrupts = <88 12>;
+	status = "okay";
+};
+
+&port_irq13 {
+	interrupts = <89 12>;
+	status = "okay";
+};

boards/renesas/ek_ra8m1/ek_ra8m1.dts

@@ -8,6 +8,7 @@
 #include <renesas/ra/ra8/r7fa8m1ahecbd.dtsi>
 #include <dt-bindings/gpio/gpio.h>
 #include <zephyr/dt-bindings/adc/adc.h>
+#include <zephyr/dt-bindings/input/input-event-codes.h>
 #include "ek_ra8m1-pinctrl.dtsi"
 
 / {
@@ -93,8 +94,24 @@
 			   <7 0 &ioport8 11 0>;	/* IO8 */
 	};
 
+	buttons {
+		compatible = "gpio-keys";
+		button0: s1 {
+			gpios = <&ioport0 9 (GPIO_PULL_UP | GPIO_ACTIVE_LOW)>;
+			label = "Push button switch 1";
+			zephyr,code = <INPUT_KEY_0>;
+		};
+		button1: s2 {
+			gpios = <&ioport0 8 (GPIO_PULL_UP | GPIO_ACTIVE_LOW)>;
+			label = "Push button switch 2";
+			zephyr,code = <INPUT_KEY_1>;
+		};
+	};
+
 	aliases {
 		led0 = &led1;
+		sw0 = &button0;
+		sw1 = &button1;
 	};
 
 	transceiver0: can-phy0 {
@@ -320,3 +337,13 @@ pmod_header: &pmod1_header {};
 &usbhs_phy {
 	phys-clock-src = "xtal";
 };
+
+&port_irq12 {
+	interrupts = <88 12>;
+	status = "okay";
+};
+
+&port_irq13 {
+	interrupts = <89 12>;
+	status = "okay";
+};

boards/renesas/fpb_ra6e1/fpb_ra6e1.dts

@@ -7,6 +7,7 @@
 
 #include <renesas/ra/ra6/r7fa6e10f2cfp.dtsi>
 #include <dt-bindings/gpio/gpio.h>
+#include <dt-bindings/input/input-event-codes.h>
 #include <zephyr/dt-bindings/adc/adc.h>
 
 #include "fpb_ra6e1-pinctrl.dtsi"
@@ -34,8 +35,18 @@
 		};
 	};
 
+	buttons {
+		compatible = "gpio-keys";
+		button0: s1 {
+			gpios = <&ioport2 5 (GPIO_PULL_UP | GPIO_ACTIVE_LOW)>;
+			label = "Push button switch 1";
+			zephyr,code = <INPUT_KEY_0>;
+		};
+	};
+
 	aliases {
 		led0 = &led1;
+		sw0 = &button0;
 	};
 };
 
@@ -66,6 +77,10 @@
 	status = "okay";
 };
 
+&ioport2 {
+	status = "okay";
+};
+
 &ioport4 {
 	status = "okay";
 };
@@ -104,3 +119,8 @@
 	pinctrl-0 = <&adc0_default>;
 	pinctrl-names = "default";
 };
+
+&port_irq1 {
+	interrupts = <41 12>;
+	status = "okay";
+};

boards/renesas/fpb_ra6e2/fpb_ra6e2.dts

@@ -7,6 +7,7 @@
 
 #include <renesas/ra/ra6/r7fa6e2bb3cfm.dtsi>
 #include <dt-bindings/gpio/gpio.h>
+#include <dt-bindings/input/input-event-codes.h>
 #include <zephyr/dt-bindings/adc/adc.h>
 
 #include "fpb_ra6e2-pinctrl.dtsi"
@@ -34,9 +35,19 @@
 		};
 	};
 
+	buttons {
+		compatible = "gpio-keys";
+		button0: s1 {
+			gpios = <&ioport3 4 (GPIO_PULL_UP | GPIO_ACTIVE_LOW)>;
+			label = "Push button switch 1";
+			zephyr,code = <INPUT_KEY_0>;
+		};
+	};
+
 	aliases {
 		led0 = &led1;
 		led1 = &led2;
+		sw0 = &button0;
 	};
 };
 
@@ -60,6 +71,10 @@
 	status = "okay";
 };
 
+&ioport3 {
+	status = "okay";
+};
+
 &flash0 {
 	partitions {
 		compatible = "fixed-partitions";
@@ -94,3 +109,8 @@
 	pinctrl-0 = <&adc0_default>;
 	pinctrl-names = "default";
 };
+
+&port_irq9 {
+	interrupts = <41 12>;
+	status = "okay";
+};