Commit 2dc61b58 authored by Nikhil Devshatwar's avatar Nikhil Devshatwar Committed by Tero Kristo
Browse files

arm64: dts: k3-j721e: Add gpio-keys on common processor board 



Common processor board for K3 J721E platform has two push buttons
namely SW10 and SW11.
Add a gpio-keys device node to model them as input keys in Linux.
Add required pinmux nodes to set GPIO pins as input.

Signed-off-by: default avatarNikhil Devshatwar <nikhil.nd@ti.com>
Signed-off-by: default avatarLokesh Vutla <lokeshvutla@ti.com>
Reviewed-by: default avatarKeerthy <j-keerthy@ti.com>
Signed-off-by: default avatarTero Kristo <t-kristo@ti.com>
parent 7548205a

arch/arm64/boot/dts/ti/k3-j721e-common-proc-board.dts

+37 −0
Original line number Diff line number Diff line
@@ -6,12 +6,49 @@ 
/dts-v1/;



#include "k3-j721e-som-p0.dtsi"

#include <dt-bindings/gpio/gpio.h>

#include <dt-bindings/input/input.h>



/ {

	chosen {

		stdout-path = "serial2:115200n8";

		bootargs = "console=ttyS2,115200n8 earlycon=ns16550a,mmio32,0x02800000";

	};



	gpio_keys: gpio-keys {

		compatible = "gpio-keys";

		autorepeat;

		pinctrl-names = "default";

		pinctrl-0 = <&sw10_button_pins_default &sw11_button_pins_default>;



		sw10: sw10 {

			label = "GPIO Key USER1";

			linux,code = <BTN_0>;

			gpios = <&main_gpio0 0 GPIO_ACTIVE_LOW>;

		};



		sw11: sw11 {

			label = "GPIO Key USER2";

			linux,code = <BTN_1>;

			gpios = <&wkup_gpio0 7 GPIO_ACTIVE_LOW>;

		};

	};

};



&main_pmx0 {

	sw10_button_pins_default: sw10_button_pins_default {

		pinctrl-single,pins = <

			J721E_IOPAD(0x0, PIN_INPUT, 7) /* (AC18) EXTINTn.GPIO0_0 */

		>;

	};

};



&wkup_pmx0 {

	sw11_button_pins_default: sw11_button_pins_default {

		pinctrl-single,pins = <

			J721E_WKUP_IOPAD(0xcc, PIN_INPUT, 7) /* (G28) WKUP_GPIO0_7 */

		>;

	};

};



&wkup_uart0 {

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