ARM: dts: qcom: apq8074-dragonboard: add gpio keys

Add device nodes for gpio-keys (volume-up, general key) device nodes.

Reviewed-by: Konrad Dybcio <konrad.dybcio@linaro.org>
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Signed-off-by: Bjorn Andersson <andersson@kernel.org>
Link: https://lore.kernel.org/r/20230531012627.3813060-3-dmitry.baryshkov@linaro.org

Author: lumag

arch/arm/boot/dts/qcom-apq8074-dragonboard.dts

@@ -1,6 +1,8 @@
 // SPDX-License-Identifier: GPL-2.0
 #include <dt-bindings/gpio/gpio.h>
+#include <dt-bindings/input/input.h>
 #include <dt-bindings/leds/common.h>
+#include <dt-bindings/pinctrl/qcom,pmic-gpio.h>
 #include "qcom-msm8974.dtsi"
 #include "qcom-pm8841.dtsi"
 #include "qcom-pm8941.dtsi"
@@ -21,6 +23,26 @@
 		stdout-path = "serial0:115200n8";
 	};
 
+	gpio-keys {
+		compatible = "gpio-keys";
+		autorepeat;
+
+		pinctrl-0 = <&msm_keys_default>;
+		pinctrl-names = "default";
+
+		button-volup {
+			label = "Volume Up";
+			linux,code = <KEY_VOLUMEUP>;
+			gpios = <&pm8941_gpios 5 GPIO_ACTIVE_LOW>;
+		};
+
+		button-general {
+			label = "General";
+			linux,code = <KEY_PROG1>;
+			gpios = <&pm8941_gpios 23 GPIO_ACTIVE_LOW>;
+		};
+	};
+
 	reserved-memory {
 		mpss_region: mpss@ac00000 {
 			reg = <0x0ac00000 0x2500000>;
@@ -91,6 +113,18 @@
 	status = "okay";
 };
 
+&pm8941_gpios {
+        msm_keys_default: pm8941-gpio-keys-state {
+		pins = "gpio5", "gpio23";
+		function = "normal";
+		input-enable;
+		drive-push-pull;
+		bias-pull-up;
+		qcom,drive-strength = <PMIC_GPIO_STRENGTH_NO>;
+		power-source = <PM8941_GPIO_S3>; /* 1.8V */
+        };
+};
+
 &pm8941_lpg {
 	qcom,power-source = <1>;
 	status = "okay";