ARM: dts: msm: Add volume up key configuration for QRD845

Volume up key is connected to PM8998 GPIO6 on QRD845, add the
configuration for it can be detected.

Change-Id: I95262174543fad3940de8ac78906521002cf2f3c
Signed-off-by: Fenglin Wu <fenglinw@codeaurora.org>
diff --git a/arch/arm64/boot/dts/qcom/sdm845-qrd.dtsi b/arch/arm64/boot/dts/qcom/sdm845-qrd.dtsi
index 26d32a1..3ee0138 100644
--- a/arch/arm64/boot/dts/qcom/sdm845-qrd.dtsi
+++ b/arch/arm64/boot/dts/qcom/sdm845-qrd.dtsi
@@ -51,6 +51,26 @@
 	status = "ok";
 };
 
+&soc {
+	gpio_keys {
+		compatible = "gpio-keys";
+		label = "gpio-keys";
+
+		pinctrl-names = "default";
+		pinctrl-0 = <&key_vol_up_default>;
+
+		vol_up {
+			label = "volume_up";
+			gpios = <&pm8998_gpios 6 GPIO_ACTIVE_LOW>;
+			linux,input-type = <1>;
+			linux,code = <115>;
+			gpio-key,wakeup;
+			debounce-interval = <15>;
+			linux,can-disable;
+		};
+	};
+};
+
 &qupv3_se3_i2c {
 	status = "ok";
 	nq@28 {