[PATCH 3/3] arm: kirkwood: add support for Init button on OpenBlocks A6

[Thomas Petazzoni]

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 at free-electrons.com>
---
 arch/arm/boot/dts/kirkwood-openblocks_a6.dts |   14 ++++++++++++++
 1 file changed, 14 insertions(+)

diff --git a/arch/arm/boot/dts/kirkwood-openblocks_a6.dts b/arch/arm/boot/dts/kirkwood-openblocks_a6.dts
index 0488d6a..7ac831e 100644
--- a/arch/arm/boot/dts/kirkwood-openblocks_a6.dts
+++ b/arch/arm/boot/dts/kirkwood-openblocks_a6.dts
@@ -172,4 +172,18 @@
 			gpios = <&gpio1 11 1>;
 		};
         };
+
+	gpio_keys {
+		compatible = "gpio-keys";
+		pinctrl-0 = <&pmx_gpio_init>;
+		pinctrl-names = "default";
+		#address-cells = <1>;
+		#size-cells = <0>;
+
+		button at 1 {
+			label = "Init Button";
+			linux,code = <116>;
+			gpios = <&gpio1 6 0>;
+		};
+	};
 };
-- 
1.7.9.5