[PATCH] ARM: dts: helios4: add Wake-on-LAN gpio key

[Rosen Penev <rosenp@gmail.com>]

Add a gpio-keys node exposing Wake-On-LAN on its gpio0 18 input,
allowing the board to be woken from suspend.

Assisted-by: opencode:big-pickle
Signed-off-by: Rosen Penev <rosenp@gmail.com>
---
 arch/arm/boot/dts/marvell/armada-388-helios4.dts | 12 ++++++++++++
 1 file changed, 12 insertions(+)

diff --git a/arch/arm/boot/dts/marvell/armada-388-helios4.dts b/arch/arm/boot/dts/marvell/armada-388-helios4.dts
index 176198d99c26..e3376c703cbf 100644
--- a/arch/arm/boot/dts/marvell/armada-388-helios4.dts
+++ b/arch/arm/boot/dts/marvell/armada-388-helios4.dts
@@ -87,6 +87,18 @@ fault-led {
 		};
 	};
 
+	gpio-keys {
+		compatible = "gpio-keys";
+		pinctrl-0 = <&microsom_phy0_int_pins>;
+
+		wol {
+			label = "Wake-On-LAN";
+			linux,code = <KEY_WAKEUP>;
+			gpios = <&gpio0 18 GPIO_ACTIVE_LOW>;
+			wakeup-source;
+		};
+	};
+
 	io-leds {
 		compatible = "gpio-leds";
 		pinctrl-names = "default";
-- 
2.55.0