ARM: dts: msm8974-hammerhead: Introduce gpio-keys nodes

This introduces the gpio-keys node for keys of hammerhead and pinctrl
state associated with it.

Cc: Andy Gross <andy.gross@linaro.org>
Cc: Bjorn Andersson <bjorn.andersson@linaro.org>
Cc: David Brown <david.brown@linaro.org>
Cc: Rob Herring <robh+dt@kernel.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Russell King <linux@armlinux.org.uk>
Cc: linux-arm-msm@vger.kernel.org
Cc: linux-soc@vger.kernel.org
Cc: devicetree@vger.kernel.org
Signed-off-by: Bhushan Shah <bshah@kde.org>
Reviewed-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Signed-off-by: Andy Gross <andy.gross@linaro.org>

diff --git a/arch/arm/boot/dts/qcom-msm8974-lge-nexus5-hammerhead.dts b/arch/arm/boot/dts/qcom-msm8974-lge-nexus5-hammerhead.dts
index df957cb..c0fb4a6 100644 (file)
--- a/arch/arm/boot/dts/qcom-msm8974-lge-nexus5-hammerhead.dts
+++ b/arch/arm/boot/dts/qcom-msm8974-lge-nexus5-hammerhead.dts
@@ -2,6 +2,7 @@
 #include "qcom-pm8841.dtsi"
 #include "qcom-pm8941.dtsi"
 #include <dt-bindings/gpio/gpio.h>
+#include <dt-bindings/input/input.h>
 #include <dt-bindings/pinctrl/qcom,pmic-gpio.h>
 
 / {
@@ -223,4 +224,39 @@
                status = "ok";
        };
 
+       gpio-keys {
+               compatible = "gpio-keys";
+               input-name = "gpio-keys";
+
+               pinctrl-names = "default";
+               pinctrl-0 = <&gpio_keys_pin_a>;
+
+               volume-up {
+                       label = "volume_up";
+                       gpios = <&pm8941_gpios 2 GPIO_ACTIVE_LOW>;
+                       linux,input-type = <1>;
+                       linux,code = <KEY_VOLUMEUP>;
+               };
+
+               volume-down {
+                       label = "volume_down";
+                       gpios = <&pm8941_gpios 3 GPIO_ACTIVE_LOW>;
+                       linux,input-type = <1>;
+                       linux,code = <KEY_VOLUMEDOWN>;
+               };
+       };
+};
+
+&spmi_bus {
+       pm8941@0 {
+               gpios@c000 {
+                       gpio_keys_pin_a: gpio-keys-active {
+                               pins = "gpio2", "gpio3";
+                               function = "normal";
+
+                               bias-pull-up;
+                               power-source = <PM8941_GPIO_S3>;
+                       };
+               };
+       };
 };