ARM: dts: kzm9g: Configure NMI key as wake-up source
Add a GPIO key with wake-up capability for the NMI button.
This allows to wake up the system from s2ram without relying on the
buttons on the optional switch board.
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
diff --git a/arch/arm/boot/dts/sh73a0-kzm9g.dts b/arch/arm/boot/dts/sh73a0-kzm9g.dts
index e40a2f2..c2d8a08 100644
--- a/arch/arm/boot/dts/sh73a0-kzm9g.dts
+++ b/arch/arm/boot/dts/sh73a0-kzm9g.dts
@@ -149,6 +149,13 @@
label = "SW1";
wakeup-source;
};
+
+ wakeup-key {
+ gpios = <&pfc 159 GPIO_ACTIVE_LOW>;
+ linux,code = <KEY_WAKEUP>;
+ label = "NMI";
+ wakeup-source;
+ };
};
sound {