Input: gpio-keys - clean up device tree binding example

Drop #address-cells and #size-cells, which are not required by the
gpio-keys binding documentation, as button sub-nodes are not devices.

Rename sub-nodes to avoid new dtc unit address warnings when copied.

While at it, adopt the dashes convention for the node name.

Reported-by: Julien Chauveau <chauveau.julien@gmail.com>
Signed-off-by: Andreas Färber <afaerber@suse.de>
Reviewed-by: Javier Martinez Canillas <javier@osg.samsung.com>
Reviewed-by: Julien Chauveau <chauveau.julien@gmail.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>

diff --git a/Documentation/devicetree/bindings/input/gpio-keys.txt b/Documentation/devicetree/bindings/input/gpio-keys.txt
index 2164123..a949404 100644 (file)
--- a/Documentation/devicetree/bindings/input/gpio-keys.txt
+++ b/Documentation/devicetree/bindings/input/gpio-keys.txt
@@ -32,17 +32,17 @@ Optional subnode-properties:
 
 Example nodes:
 
-       gpio_keys {
+       gpio-keys {
                        compatible = "gpio-keys";
-                       #address-cells = <1>;
-                       #size-cells = <0>;
                        autorepeat;
-                       button@21 {
+
+                       up {
                                label = "GPIO Key UP";
                                linux,code = <103>;
                                gpios = <&gpio1 0 1>;
                        };
-                       button@22 {
+
+                       down {
                                label = "GPIO Key DOWN";
                                linux,code = <108>;
                                interrupts = <1 IRQ_TYPE_LEVEL_HIGH 7>;