UPSTREAM: arm64: dts: qcom: msm8939-asus-z00t: add hall sensor

This device uses ANPEC APX9131 hall sensor. It is a basic GPIO hall
sensor for which a generic "gpio-keys" device tree node configuration
suffices.

Reviewed-by: Konrad Dybcio <[email protected]>
Signed-off-by: Erikas Bitovtas <[email protected]>

Author: erikas9987

arch/arm64/boot/dts/qcom/msm8939-asus-z00t.dts

@@ -82,7 +82,7 @@
 	gpio-keys {
 		compatible = "gpio-keys";
 
-		pinctrl-0 = <&gpio_keys_default>;
+		pinctrl-0 = <&gpio_hall_sensor_default>, <&gpio_keys_default>;
 		pinctrl-names = "default";
 
 		button-volume-up {
@@ -98,6 +98,15 @@
 			linux,code = <KEY_VOLUMEDOWN>;
 			debounce-interval = <15>;
 		};
+
+		event-hall-sensor {
+			label = "Hall Effect Sensor";
+			gpios = <&tlmm 108 GPIO_ACTIVE_LOW>;
+			linux,input-type = <EV_SW>;
+			linux,code = <SW_LID>;
+			linux,can-disable;
+			debounce-interval = <150>;
+		};
 	};
 
 	reg_sd_vmmc: regulator-sdcard-vmmc {
@@ -367,6 +376,13 @@
 		bias-pull-up;
 	};
 
+	gpio_hall_sensor_default: gpio-hall-sensor-default-state {
+		pins = "gpio108";
+		function = "gpio";
+		drive-strength = <2>;
+		bias-pull-up;
+	};
+
 	usb_id_default: usb-id-default-state {
 		pins = "gpio110";
 		function = "gpio";