arm64: dts: renesas: white-hawk-cpu: Add push switches

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

Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Link: https://lore.kernel.org/r/e18d0d5087a514db611295f5d1e13c950cf7dae7.1662715538.git.geert+renesas@glider.be

diff --git a/arch/arm64/boot/dts/renesas/r8a779g0-white-hawk-cpu.dtsi b/arch/arm64/boot/dts/renesas/r8a779g0-white-hawk-cpu.dtsi
index 684c250..f2ad189 100644 (file)
--- a/arch/arm64/boot/dts/renesas/r8a779g0-white-hawk-cpu.dtsi
+++ b/arch/arm64/boot/dts/renesas/r8a779g0-white-hawk-cpu.dtsi
@@ -8,12 +8,44 @@
 #include "r8a779g0.dtsi"
 
 #include <dt-bindings/gpio/gpio.h>
+#include <dt-bindings/input/input.h>
 #include <dt-bindings/leds/common.h>
 
 / {
        model = "Renesas White Hawk CPU board";
        compatible = "renesas,white-hawk-cpu", "renesas,r8a779g0";
 
+       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>;
+               };
+       };
+
        leds {
                compatible = "gpio-leds";
 
@@ -97,6 +129,11 @@
                function = "i2c0";
        };
 
+       keys_pins: keys {
+               pins = "GP_5_0", "GP_5_1", "GP_5_2";
+               bias-pull-up;
+       };
+
        scif_clk_pins: scif_clk {
                groups = "scif_clk";
                function = "scif_clk";