ARM: dts: cubox: Map gpio-keys to gpio3 8

The Cubox has a recessed button between the HDMI and RJ-45 connectors
that wasn't mapped in the device tree, so I've mapped it to gpio-keys
BTN_0.

Signed-off-by: George Joseph <george.joseph@fairview5.com>
Tested-by: George Joseph <george.joseph@fairview5.com>
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>

1 files changed, 20 insertions, 0 deletions

diff --git a/arch/arm/boot/dts/imx6qdl-cubox-i.dtsi b/arch/arm/boot/dts/imx6qdl-cubox-i.dtsi
index 4303bc0b6284..d033bb182060 100644
--- a/arch/arm/boot/dts/imx6qdl-cubox-i.dtsi
+++ b/arch/arm/boot/dts/imx6qdl-cubox-i.dtsi
@@ -41,6 +41,8 @@
  */
 #include "imx6qdl-microsom.dtsi"
 #include "imx6qdl-microsom-ar8035.dtsi"
+#include <dt-bindings/input/input.h>
+#include <dt-bindings/gpio/gpio.h>
 
 / {
         ir_recv: ir-receiver {
@@ -104,6 +106,18 @@
                 spdif-controller = <&spdif>;
                 spdif-out;
         };
+
+        gpio-keys {
+                compatible = "gpio-keys";
+                pinctrl-0 = <&pinctrl_gpio_key>;
+                pinctrl-names = "default";
+
+                button_0 {
+                        label = "Button 0";
+                        gpios = <&gpio3 8 GPIO_ACTIVE_LOW>;
+                        linux,code = <BTN_0>;
+                };
+        };
 };
 
 &hdmi {
@@ -208,6 +222,12 @@
                                 MX6QDL_PAD_SD2_DAT3__SD2_DATA3 0x13059
                         >;
                 };
+
+                pinctrl_gpio_key: gpio-key {
+                        fsl,pins = <
+                                MX6QDL_PAD_EIM_DA8__GPIO3_IO08  0x17059
+                        >;
+                };
         };
 };