arm/dt: msm8974: Add device and GPIO configuration for GPIO based keys

Add support for 3 keys connected on PM8941 GPIOs and specify the
required GPIO configuration for these keys.

The supported keys are -
camera snapshot - PM8941 GPIO 3
camera focus - PM8941 GPIO 4
volume up - PM8941 GPIO 5

Change-Id: Icdc6f31fa5055c7e9b86a541e618cd421a0dcd2a
Signed-off-by: Anirudh Ghayal <aghayal@codeaurora.org>
diff --git a/arch/arm/boot/dts/msm8974-gpio.dtsi b/arch/arm/boot/dts/msm8974-gpio.dtsi
index 323fac4..5d93fa3 100644
--- a/arch/arm/boot/dts/msm8974-gpio.dtsi
+++ b/arch/arm/boot/dts/msm8974-gpio.dtsi
@@ -25,14 +25,26 @@
 			};
 
 			gpio@c200 {
+				qcom,mode = <0>;
+				qcom,pull = <0>;
+				qcom,vin-sel = <2>;
+				qcom,select = <0>;
 				status = "ok";
 			};
 
 			gpio@c300 {
+				qcom,mode = <0>;
+				qcom,pull = <0>;
+				qcom,vin-sel = <2>;
+				qcom,select = <0>;
 				status = "ok";
 			};
 
 			gpio@c400 {
+				qcom,mode = <0>;
+				qcom,pull = <0>;
+				qcom,vin-sel = <2>;
+				qcom,select = <0>;
 				status = "ok";
 			};