arm: kirkwood: openblocks-a6: add support for Init button

The Kirkwood-based PlatHome OpenBlocks A6 board has an Init button
connected to MPP pin 38. This commit adds support for this button.

Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Acked-by: Andrew Lunn <andrew@lunn.ch>
Tested-by: Atsushi Yamagata <yamagata@plathome.co.jp>
Signed-off-by: Jason Cooper <jason@lakedaemon.net>

diff --git a/arch/arm/boot/dts/kirkwood-openblocks_a6.dts b/arch/arm/boot/dts/kirkwood-openblocks_a6.dts
index 56e3161c568ec4d2384f9906cc85c818baae63f2..38dc8517d777244fb75f9848cccb449b80a338d3 100644 (file)
--- a/arch/arm/boot/dts/kirkwood-openblocks_a6.dts
+++ b/arch/arm/boot/dts/kirkwood-openblocks_a6.dts
@@ -151,4 +151,18 @@
                        gpios = <&gpio1 11 1>;
                };
         };
+
+       gpio_keys {
+               compatible = "gpio-keys";
+               pinctrl-0 = <&pmx_gpio_init>;
+               pinctrl-names = "default";
+               #address-cells = <1>;
+               #size-cells = <0>;
+
+               button@1 {
+                       label = "Init Button";
+                       linux,code = <116>;
+                       gpios = <&gpio1 6 0>;
+               };
+       };
 };