2 files changed, 31 insertions, 0 deletions

diff --git a/arch/arm64/boot/dts/qcom/apq8096-db820c-pmic-pins.dtsi b/arch/arm64/boot/dts/qcom/apq8096-db820c-pmic-pins.dtsi
index 6c1628c2abd4..b1142c45fdc9 100644
--- a/arch/arm64/boot/dts/qcom/apq8096-db820c-pmic-pins.dtsi
+++ b/arch/arm64/boot/dts/qcom/apq8096-db820c-pmic-pins.dtsi
@@ -12,4 +12,16 @@
                         power-source = <2>; // PM8994_GPIO_S4, 1.8V
                 };
         };
+
+        volume_up_gpio: pm8996_gpio2 {
+                pinconf {
+                        pins = "gpio2";
+                        function = "normal";
+                        input-enable;
+                        drive-push-pull;
+                        bias-pull-up;
+                        qcom,drive-strength = <PMIC_GPIO_STRENGTH_NO>;
+                        power-source = <PM8994_GPIO_S4>; // 1.8V
+                };
+        };
 };
diff --git a/arch/arm64/boot/dts/qcom/apq8096-db820c.dtsi b/arch/arm64/boot/dts/qcom/apq8096-db820c.dtsi
index 422959b87d12..d2196fc6d739 100644
--- a/arch/arm64/boot/dts/qcom/apq8096-db820c.dtsi
+++ b/arch/arm64/boot/dts/qcom/apq8096-db820c.dtsi
@@ -15,6 +15,8 @@
 #include "pm8994.dtsi"
 #include "apq8096-db820c-pins.dtsi"
 #include "apq8096-db820c-pmic-pins.dtsi"
+#include <dt-bindings/input/input.h>
+#include <dt-bindings/gpio/gpio.h>
 
 / {
         aliases {
@@ -87,4 +89,21 @@
                         status = "okay";
                 };
         };
+
+
+        gpio_keys {
+                compatible = "gpio-keys";
+                #address-cells = <1>;
+                #size-cells = <0>;
+                autorepeat;
+
+                pinctrl-names = "default";
+                pinctrl-0 = <&volume_up_gpio>;
+
+                button@0 {
+                        label = "Volume Up";
+                        linux,code = <KEY_VOLUMEUP>;
+                        gpios = <&pm8994_gpios 2 GPIO_ACTIVE_LOW>;
+                };
+        };
 };