[PATCH 4/6] ARM: dts: qcom: apq8074-dragonboard: add resin and gpio keys

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

Add device nodes for resin (reset, volume-down) and gpio-keys
(volume-up, general key) device nodes.

Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
---
 .../arm/boot/dts/qcom-apq8074-dragonboard.dts | 41 +++++++++++++++++++
 1 file changed, 41 insertions(+)

diff --git a/arch/arm/boot/dts/qcom-apq8074-dragonboard.dts b/arch/arm/boot/dts/qcom-apq8074-dragonboard.dts
index 72f7e09a5bbf..2017bdf81677 100644
--- a/arch/arm/boot/dts/qcom-apq8074-dragonboard.dts
+++ b/arch/arm/boot/dts/qcom-apq8074-dragonboard.dts
@@ -1,5 +1,7 @@
 // SPDX-License-Identifier: GPL-2.0
 #include <dt-bindings/gpio/gpio.h>
+#include <dt-bindings/input/input.h>
+#include <dt-bindings/pinctrl/qcom,pmic-gpio.h>
 #include "qcom-msm8974.dtsi"
 #include "qcom-pm8841.dtsi"
 #include "qcom-pm8941.dtsi"
@@ -20,6 +22,26 @@ chosen {
 		stdout-path = "serial0:115200n8";
 	};
 
+	gpio-keys {
+		compatible = "gpio-keys";
+		autorepeat;
+
+		pinctrl-names = "default";
+		pinctrl-0 = <&msm_keys_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>;
@@ -90,6 +112,25 @@ &mdss {
 	status = "okay";
 };
 
+&pm8941_gpios {
+        msm_keys_default: pm8941-gpio-keys-state {
+                pinconf {
+                        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_resin {
+	status = "okay";
+	linux,code = <KEY_VOLUMEDOWN>;
+};
+
 &pm8941_wled {
 	qcom,cs-out;
 	qcom,switching-freq = <3200>;
-- 
2.39.2