[PATCH v2 4/7] arm64: dts: qcom: sdm660-xiaomi-lavender: Add volume up button

[Dang Huynh <danct12@riseup.net>]

This enables the volume up key.

Reviewed-by: Caleb Connolly <caleb@connolly.tech>
Reviewed-by: Martin Botka <martin.botka@somainline.org>
Signed-off-by: Dang Huynh <danct12@riseup.net>
---
 .../boot/dts/qcom/sdm660-xiaomi-lavender.dts   | 18 ++++++++++++++++++
 1 file changed, 18 insertions(+)

diff --git a/arch/arm64/boot/dts/qcom/sdm660-xiaomi-lavender.dts b/arch/arm64/boot/dts/qcom/sdm660-xiaomi-lavender.dts
index 28408240735b..ab814dc8a875 100644
--- a/arch/arm64/boot/dts/qcom/sdm660-xiaomi-lavender.dts
+++ b/arch/arm64/boot/dts/qcom/sdm660-xiaomi-lavender.dts
@@ -9,6 +9,9 @@
 #include "sdm660.dtsi"
 #include "pm660.dtsi"
 #include "pm660l.dtsi"
+#include <dt-bindings/gpio/gpio.h>
+#include <dt-bindings/input/input.h>
+#include <dt-bindings/input/gpio-keys.h>
 
 / {
 	model = "Xiaomi Redmi Note 7";
@@ -31,6 +34,21 @@ vph_pwr: vph-pwr-regulator {
 		regulator-boot-on;
 	};
 
+	gpio_keys {
+		status = "okay";
+		compatible = "gpio-keys";
+		input-name = "gpio-keys";
+		#address-cells = <1>;
+		#size-cells = <0>;
+
+		vol_up {
+			label = "Volume Up";
+			gpios = <&pm660l_gpios 7 GPIO_ACTIVE_LOW>;
+			linux,code = <KEY_VOLUMEUP>;
+			debounce-interval = <15>;
+		};
+	};
+
 	reserved-memory {
 		#address-cells = <2>;
 		#size-cells = <2>;
-- 
2.33.1