From a353f2ee7fe26a1ed0deaf29dcfb3afac8fe83cf Mon Sep 17 00:00:00 2001
From: Chuanhong Guo <gch981213@gmail.com>
Date: Tue, 25 Jun 2019 23:19:41 +0800
Subject: [PATCH] ramips: mt7621: add IRQ for GPIO node

This makes interrupt-based gpio-keys working.

Signed-off-by: Chuanhong Guo <gch981213@gmail.com>
(cherry picked from commit 110daa16e44bb53941a18396ab6a7d9fdd1fa362)
---
 target/linux/ramips/dts/mt7621.dtsi | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/target/linux/ramips/dts/mt7621.dtsi b/target/linux/ramips/dts/mt7621.dtsi
index 77841a61d2..4f69e0902e 100644
--- a/target/linux/ramips/dts/mt7621.dtsi
+++ b/target/linux/ramips/dts/mt7621.dtsi
@@ -76,6 +76,9 @@
 			compatible = "mtk,mt7621-gpio";
 			reg = <0x600 0x100>;
 
+			interrupt-parent = <&gic>;
+			interrupts = <GIC_SHARED 12 IRQ_TYPE_LEVEL_HIGH>;
+
 			gpio0: bank@0 {
 				reg = <0>;
 				compatible = "mtk,mt7621-gpio-bank";
-- 
2.30.2