ARM: tegra: enable gpio-keys on Dalmore

Dalmore have the keys mounted on board which are connected
to different pins of Tegra.

Add the keys entry in DTS file to enable key functionality.
This will enable KEY_POWER, KEY_HOME, KEY_VOLUMEUP and
KEY_VOLUMEDOWN.

Signed-off-by: Laxman Dewangan <ldewangan@nvidia.com>
Signed-off-by: Stephen Warren <swarren@nvidia.com>

diff --git a/arch/arm/boot/dts/tegra114-dalmore.dts b/arch/arm/boot/dts/tegra114-dalmore.dts
index cb640eb6c9322db11ed2653c659d8c2d1f983b41..a42bfa4211a96782b285d186795c84af59793323 100644 (file)
--- a/arch/arm/boot/dts/tegra114-dalmore.dts
+++ b/arch/arm/boot/dts/tegra114-dalmore.dts
@@ -883,6 +883,35 @@
                };
        };
 
+       gpio-keys {
+               compatible = "gpio-keys";
+
+               home {
+                       label = "Home";
+                       gpios = <&gpio TEGRA_GPIO(I, 5) GPIO_ACTIVE_LOW>;
+                       linux,code = <102>; /* KEY_HOME */
+               };
+
+               power {
+                       label = "Power";
+                       gpios = <&gpio TEGRA_GPIO(Q, 0) GPIO_ACTIVE_LOW>;
+                       linux,code = <116>; /* KEY_POWER */
+                       gpio-key,wakeup;
+               };
+
+               volume_down {
+                       label = "Volume Down";
+                       gpios = <&gpio TEGRA_GPIO(R, 1) GPIO_ACTIVE_LOW>;
+                       linux,code = <114>; /* KEY_VOLUMEDOWN */
+               };
+
+               volume_up {
+                       label = "Volume Up";
+                       gpios = <&gpio TEGRA_GPIO(R, 2) GPIO_ACTIVE_LOW>;
+                       linux,code = <115>; /* KEY_VOLUMEUP */
+               };
+       };
+
        regulators {
                compatible = "simple-bus";
                #address-cells = <1>;