Hi!

+    soc {
+        gpio_keys {
+            status = "okay";
+            compatible = "gpio-keys";
+            input-name = "gpio-keys";
+            #address-cells = <1>;
+            #size-cells = <0>;
+            autorepeat;

Do you really want autorepeat on keys like camera focus?

+            vol_down {
+                label = "Volume Down";
+                gpios = <&pm660l_gpios 7 GPIO_ACTIVE_LOW>;
+                linux,input-type = <1>;
+                linux,code = <KEY_VOLUMEDOWN>;
+                gpio-key,wakeup;
+                debounce-interval = <15>;
+            };

No volume up?
									Pavel
-- 
(english) http://www.livejournal.com/~pavelmachek
(cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html