arm64: tegra: Add gpio-keys nodes for Smaug

Add gpio-keys nodes for the volumn controls, lid switch, tablet mode and
power button.

Signed-off-by: Rhyland Klein <rklein@nvidia.com>
Reviewed-by: Andrew Bresticker <abrestic@chromium.org>
[treding@nvidia.com: use symbolic names for input types and codes]
[treding@nvidia.com: use wakeup-source instead of gpio-key,wakeup]
Signed-off-by: Thierry Reding <treding@nvidia.com>

diff --git a/arch/arm64/boot/dts/nvidia/tegra210-smaug.dts b/arch/arm64/boot/dts/nvidia/tegra210-smaug.dts
index e687f68149c5f035ddefb969963534cc66b3eb95..89d16e09c2d7da97f52b15688e58d5d16587bf1e 100644 (file)
--- a/arch/arm64/boot/dts/nvidia/tegra210-smaug.dts
+++ b/arch/arm64/boot/dts/nvidia/tegra210-smaug.dts
@@ -1,5 +1,7 @@
 /dts-v1/;
 
+#include <dt-bindings/input/input.h>
+
 #include "tegra210.dtsi"
 
 / {
@@ -76,6 +78,47 @@
                };
        };
 
+       gpio-keys {
+               compatible = "gpio-keys";
+               gpio-keys,name = "gpio-keys";
+
+               power {
+                       label = "Power";
+                       gpios = <&gpio TEGRA_GPIO(X, 5) GPIO_ACTIVE_LOW>;
+                       linux,code = <KEY_POWER>;
+                       debounce-interval = <30>;
+                       wakeup-source;
+               };
+
+               lid {
+                       label = "Lid";
+                       gpios = <&gpio TEGRA_GPIO(B, 4) GPIO_ACTIVE_LOW>;
+                       linux,input-type = <EV_SW>;
+                       linux,code = <SW_LID>;
+                       wakeup-source;
+               };
+
+               tablet_mode {
+                       label = "Tablet Mode";
+                       gpios = <&gpio TEGRA_GPIO(Z, 2) GPIO_ACTIVE_HIGH>;
+                       linux,input-type = <EV_SW>;
+                       linux,code = <SW_TABLET_MODE>;
+                       wakeup-source;
+               };
+
+               volume_down {
+                       label = "Volume Down";
+                       gpios = <&gpio TEGRA_GPIO(X, 7) GPIO_ACTIVE_LOW>;
+                       linux,code = <KEY_VOLUMEDOWN>;
+               };
+
+               volume_up {
+                       label = "Volume Up";
+                       gpios = <&gpio TEGRA_GPIO(M, 4) GPIO_ACTIVE_LOW>;
+                       linux,code = <KEY_VOLUMEUP>;
+               };
+       };
+
        psci {
                compatible = "arm,psci-1.0";
                method = "smc";