[PATCH 3/4] arm64: dts: qcom: msm8998-lenovo-miix-630: enable VolumeUp button

[Dmitry Baryshkov <dmitry.baryshkov@linaro.org>]

Add gpio-keys device, responsible for a single button: Volume Up.

Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
---
 .../boot/dts/qcom/msm8998-lenovo-miix-630.dts      | 25 ++++++++++++++++++++++
 1 file changed, 25 insertions(+)

diff --git a/arch/arm64/boot/dts/qcom/msm8998-lenovo-miix-630.dts b/arch/arm64/boot/dts/qcom/msm8998-lenovo-miix-630.dts
index f585bc8ba2ce..bca309ac0cb8 100644
--- a/arch/arm64/boot/dts/qcom/msm8998-lenovo-miix-630.dts
+++ b/arch/arm64/boot/dts/qcom/msm8998-lenovo-miix-630.dts
@@ -3,12 +3,27 @@
 
 /dts-v1/;
 
+#include <dt-bindings/pinctrl/qcom,pmic-gpio.h>
 #include "msm8998-clamshell.dtsi"
 
 / {
 	model = "Lenovo Miix 630";
 	compatible = "lenovo,miix-630", "qcom,msm8998";
 	chassis-type = "convertible";
+
+	gpio-keys {
+		compatible = "gpio-keys";
+		autorepeat;
+
+		pinctrl-names = "default";
+		pinctrl-0 = <&vol_up_pin_a>;
+
+		key-vol-up {
+			label = "Volume Up";
+			linux,code = <KEY_VOLUMEUP>;
+			gpios = <&pm8998_gpios 6 GPIO_ACTIVE_LOW>;
+		};
+	};
 };
 
 &blsp1_i2c5 {
@@ -45,6 +60,16 @@ keyboard@3a {
 	};
 };
 
+&pm8998_gpios {
+	vol_up_pin_a: vol-up-active-state {
+		pins = "gpio6";
+		function = "normal";
+		input-enable;
+		bias-pull-up;
+		qcom,drive-strength = <PMIC_GPIO_STRENGTH_NO>;
+	};
+};
+
 &remoteproc_adsp {
 	firmware-name = "qcom/msm8998/LENOVO/81F1/qcadsp8998.mbn";
 	status = "okay";

-- 
2.39.2