Input: gpio-keys-polled - don't use unit-address with button nodes

The change corrects an example in device tree documentation section,
because button/key device nodes don't contain reg property there is
no need to declare unit-address, and address and size cell properties
are also redundant.

At the moment a compilation of the hypothetical original example
should produce W=1 level warnings, and it is better to stop spreading
misusage of the polled gpio keys device tree binding through this
example.

Signed-off-by: Vladimir Zapolskiy <vz@mleia.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>

diff --git a/Documentation/devicetree/bindings/input/gpio-keys-polled.txt b/Documentation/devicetree/bindings/input/gpio-keys-polled.txt
index 95d0fb1..4d9a371 100644 (file)
--- a/Documentation/devicetree/bindings/input/gpio-keys-polled.txt
+++ b/Documentation/devicetree/bindings/input/gpio-keys-polled.txt
@@ -34,11 +34,10 @@ Example nodes:
 
        gpio_keys_polled {
                        compatible = "gpio-keys-polled";
-                       #address-cells = <1>;
-                       #size-cells = <0>;
                        poll-interval = <100>;
                        autorepeat;
-                       button@21 {
+
+                       button21 {
                                label = "GPIO Key UP";
                                linux,code = <103>;
                                gpios = <&gpio1 0 1>;