arm64: dts: rockchip: Add nodes for buttons on rk3399-roc-pc

rk3399-roc-pc has a power and a recovery button, enable them.

Signed-off-by: Markus Reichl <m.reichl@fivetechno.de>
Link: https://lore.kernel.org/r/1ce152cc-bd6b-63af-7892-221e084d087f@fivetechno.de
Signed-off-by: Heiko Stuebner <heiko@sntech.de>

diff --git a/arch/arm64/boot/dts/rockchip/rk3399-roc-pc.dts b/arch/arm64/boot/dts/rockchip/rk3399-roc-pc.dts
index 12d38f6..e1a595a 100644 (file)
--- a/arch/arm64/boot/dts/rockchip/rk3399-roc-pc.dts
+++ b/arch/arm64/boot/dts/rockchip/rk3399-roc-pc.dts
@@ -4,6 +4,7 @@
  */
 
 /dts-v1/;
+#include <dt-bindings/input/linux-event-codes.h>
 #include <dt-bindings/pwm/pwm.h>
 #include "rk3399.dtsi"
 #include "rk3399-opp.dtsi"
@@ -28,6 +29,35 @@
                #clock-cells = <0>;
        };
 
+       adc-keys {
+               compatible = "adc-keys";
+               io-channels = <&saradc 1>;
+               io-channel-names = "buttons";
+               keyup-threshold-microvolt = <1500000>;
+               poll-interval = <100>;
+
+               recovery {
+                       label = "Recovery";
+                       linux,code = <KEY_VENDOR>;
+                       press-threshold-microvolt = <18000>;
+               };
+       };
+
+       gpio-keys {
+               compatible = "gpio-keys";
+               autorepeat;
+               pinctrl-names = "default";
+               pinctrl-0 = <&pwr_key_l>;
+
+               power {
+                       label = "GPIO Key Power";
+                       debounce-interval = <100>;
+                       gpios = <&gpio0 RK_PA5 GPIO_ACTIVE_LOW>;
+                       linux,code = <KEY_POWER>;
+                       wakeup-source;
+               };
+       };
+
        leds {
                compatible = "gpio-leds";
                pinctrl-names = "default";
@@ -515,6 +545,12 @@
 };
 
 &pinctrl {
+       buttons {
+               pwr_key_l: pwr-key-l {
+                       rockchip,pins = <0 RK_PA5 RK_FUNC_GPIO &pcfg_pull_up>;
+               };
+       };
+
        lcd-panel {
                lcd_panel_reset: lcd-panel-reset {
                        rockchip,pins = <4 RK_PD6 RK_FUNC_GPIO &pcfg_pull_up>;