arm64: dts: rockchip: make use gpio-keys for buttons on puma-haikou

Haikou is an evaluation and development platform for System on
Modules (SOMs).

Haikou devkit exposes multiple buttons so let's register them as
such so that the input subsystem can generate events when pressed or
switched.

Signed-off-by: Vahe Grigoryan <vahe.grigoryan@theobroma-systems.com>
Link: https://lore.kernel.org/r/20231214122801.3144180-3-vahe.grigoryan@theobroma-systems.com
Signed-off-by: Heiko Stuebner <heiko@sntech.de>

diff --git a/arch/arm64/boot/dts/rockchip/rk3399-puma-haikou.dts b/arch/arm64/boot/dts/rockchip/rk3399-puma-haikou.dts
index 4f2d4bb120323e77f011f4e09194d87cf5865038..18a98c4648eae78cf927a848f9ba8e4f0b4cfdc5 100644 (file)
--- a/arch/arm64/boot/dts/rockchip/rk3399-puma-haikou.dts
+++ b/arch/arm64/boot/dts/rockchip/rk3399-puma-haikou.dts
@@ -5,6 +5,7 @@
 
 /dts-v1/;
 #include "rk3399-puma.dtsi"
+#include <dt-bindings/input/input.h>
 
 / {
        model = "Theobroma Systems RK3399-Q7 SoM";
@@ -18,6 +19,38 @@
                stdout-path = "serial0:115200n8";
        };
 
+       gpio-keys {
+               compatible = "gpio-keys";
+               pinctrl-0 = <&haikou_keys_pin>;
+               pinctrl-names = "default";
+
+               button-batlow-n {
+                       gpios = <&gpio0 RK_PB2 GPIO_ACTIVE_LOW>;
+                       label = "BATLOW#";
+                       linux,code = <KEY_BATTERY>;
+               };
+
+               button-slp-btn-n {
+                       gpios = <&gpio0 RK_PB3 GPIO_ACTIVE_LOW>;
+                       label = "SLP_BTN#";
+                       linux,code = <KEY_SLEEP>;
+               };
+
+               button-wake-n {
+                       gpios = <&gpio0 RK_PB1 GPIO_ACTIVE_LOW>;
+                       label = "WAKE#";
+                       linux,code = <KEY_WAKEUP>;
+                       wakeup-source;
+               };
+
+               switch-lid-btn-n {
+                       gpios = <&gpio0 RK_PA4 GPIO_ACTIVE_LOW>;
+                       label = "LID_BTN#";
+                       linux,code = <SW_LID>;
+                       linux,input-type = <EV_SW>;
+               };
+       };
+
        leds {
                pinctrl-0 = <&module_led_pin>, <&sd_card_led_pin>;
 
@@ -165,11 +198,8 @@
 };
 
 &pinctrl {
-       pinctrl-names = "default";
-       pinctrl-0 = <&haikou_pin_hog>;
-
-       hog {
-               haikou_pin_hog: haikou-pin-hog {
+       buttons {
+               haikou_keys_pin: haikou-keys-pin {
                        rockchip,pins =
                          /* LID_BTN */
                          <0 RK_PA4 RK_FUNC_GPIO &pcfg_pull_up>,