ARM: ux500: Add support for gpio-keys and Proximity Sensor for HREF

Here we ensure the SFH7741 Proximity Sensor is registered through
gpio-keys when booting with Device Tree enabled.

Acked-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
diff --git a/arch/arm/boot/dts/hrefv60plus.dts b/arch/arm/boot/dts/hrefv60plus.dts
index 2a85893..4b867b2 100644
--- a/arch/arm/boot/dts/hrefv60plus.dts
+++ b/arch/arm/boot/dts/hrefv60plus.dts
@@ -16,4 +16,10 @@
 / {
 	model = "ST-Ericsson HREF (v60+) platform with Device Tree";
 	compatible = "st-ericsson,hrefv60+";
+
+	gpio_keys {
+		button@1 {
+			gpios = <&gpio6 25 0x4>;
+		};
+	};
 };