arm64: dts: renesas: gray-hawk-single: Add push switches

Describe the three Push Switches on the Gray Hawk Single board, so they
can be used for user input.

Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Link: https://lore.kernel.org/41b8277d4b630e0c296375888d9b958448d02cde.1721649057.git.geert+renesas@glider.be

diff --git a/arch/arm64/boot/dts/renesas/r8a779h0-gray-hawk-single.dts b/arch/arm64/boot/dts/renesas/r8a779h0-gray-hawk-single.dts
index df4025e522e2dff3e2d195e94eaec668bd8b604b..ca9141afb7c9be753b53ed95432dbb48984c1a0d 100644 (file)
--- a/arch/arm64/boot/dts/renesas/r8a779h0-gray-hawk-single.dts
+++ b/arch/arm64/boot/dts/renesas/r8a779h0-gray-hawk-single.dts
@@ -28,6 +28,7 @@
 /dts-v1/;
 
 #include <dt-bindings/gpio/gpio.h>
+#include <dt-bindings/input/input.h>
 
 #include "r8a779h0.dtsi"
 
@@ -50,6 +51,37 @@
                stdout-path = "serial0:921600n8";
        };
 
+       keys {
+               compatible = "gpio-keys";
+
+               pinctrl-0 = <&keys_pins>;
+               pinctrl-names = "default";
+
+               key-1 {
+                       gpios = <&gpio5 0 GPIO_ACTIVE_LOW>;
+                       linux,code = <KEY_1>;
+                       label = "SW47";
+                       wakeup-source;
+                       debounce-interval = <20>;
+               };
+
+               key-2 {
+                       gpios = <&gpio5 1 GPIO_ACTIVE_LOW>;
+                       linux,code = <KEY_2>;
+                       label = "SW48";
+                       wakeup-source;
+                       debounce-interval = <20>;
+               };
+
+               key-3 {
+                       gpios = <&gpio5 2 GPIO_ACTIVE_LOW>;
+                       linux,code = <KEY_3>;
+                       label = "SW49";
+                       wakeup-source;
+                       debounce-interval = <20>;
+               };
+       };
+
        memory@48000000 {
                device_type = "memory";
                /* first 128MB is reserved for secure area. */
@@ -267,6 +299,11 @@
                function = "i2c3";
        };
 
+       keys_pins: keys {
+               pins = "GP_5_0", "GP_5_1", "GP_5_2";
+               bias-pull-up;
+       };
+
        mmc_pins: mmc {
                groups = "mmc_data8", "mmc_ctrl", "mmc_ds";
                function = "mmc";