arm64: dts: qcom: sdm845-oneplus-common: add Hall sensor

Enable the Hall effect sensor (flip cover) for OnePlus 6/6T.
The GPIO is mapped to SW_LID events as in msm8916, msm8994,
msm8998 devices.
Signed-off-by: Gergo Koteles <soyer@irl.hu>
Reviewed-by: Caleb Connolly <caleb@connolly.tech>
Reviewed-by: Konrad Dybcio <konrad.dybcio@linaro.org>
Signed-off-by: Bjorn Andersson <andersson@kernel.org>
Link: https://lore.kernel.org/r/20230306174147.185239-1-soyer@irl.hu

arch/arm64/boot/dts/qcom/sdm845-oneplus-common.dtsi

@@ -29,6 +29,23 @@ chosen {
 		stdout-path = "serial0:115200n8";
 	};
 
+	gpio-hall-sensor {
+		compatible = "gpio-keys";
+		label = "Hall effect sensor";
+
+		pinctrl-0 = <&hall_sensor_default>;
+		pinctrl-names = "default";
+
+		event-hall-sensor {
+			gpios = <&tlmm 124 GPIO_ACTIVE_LOW>;
+			label = "Hall Effect Sensor";
+			linux,input-type = <EV_SW>;
+			linux,code = <SW_LID>;
+			linux,can-disable;
+			wakeup-source;
+		};
+	};
+
 	gpio-keys {
 		compatible = "gpio-keys";
 		label = "Volume keys";
@@ -753,6 +770,14 @@ &usb_1_hsphy {
 &tlmm {
 	gpio-reserved-ranges = <0 4>, <81 4>;
 
+	hall_sensor_default: hall-sensor-default-state {
+		pins = "gpio124";
+		function = "gpio";
+		drive-strength = <2>;
+		bias-disable;
+		input-enable;
+	};
+
 	tri_state_key_default: tri-state-key-default-state {
 		pins = "gpio40", "gpio42", "gpio26";
 		function = "gpio";