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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: Nikhil Devshatwar <nikhil.nd@ti.com>
Signed-off-by: Lokesh Vutla <lokeshvutla@ti.com>
Reviewed-by: Keerthy <j-keerthy@ti.com>
Signed-off-by: Tero Kristo <t-kristo@ti.com>
This commit is contained in:
Nikhil Devshatwar 2019-08-09 13:59:47 +05:30 committed by Tero Kristo
parent 7548205ae5
commit 2dc61b58ef
1 changed files with 37 additions and 0 deletions
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37
arch/arm64/boot/dts/ti/k3-j721e-common-proc-board.dts
View File

@ -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 {