[PATCH 2/2] arm64: dts: mt7622: handle interrupts from MT7531 switch on BPI-R64

[Daniel Golle]

Since commit ba751e28d442 ("net: dsa: mt7530: add interrupt support")
the mt7530 driver can act as an interrupt controller. Wire up irq line
of the MT7531 switch on the BananaPi BPi-R64 board, so the status of
the PHYs of the five 1000Base-T ports doesn't need to be polled any
more.

Signed-off-by: Daniel Golle <daniel at makrotopia.org>
---
 arch/arm64/boot/dts/mediatek/mt7622-bananapi-bpi-r64.dts | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/arch/arm64/boot/dts/mediatek/mt7622-bananapi-bpi-r64.dts b/arch/arm64/boot/dts/mediatek/mt7622-bananapi-bpi-r64.dts
index d583e816684cf..aabd104b12acf 100644
--- a/arch/arm64/boot/dts/mediatek/mt7622-bananapi-bpi-r64.dts
+++ b/arch/arm64/boot/dts/mediatek/mt7622-bananapi-bpi-r64.dts
@@ -150,6 +150,10 @@ mdio: mdio-bus {
 		switch at 0 {
 			compatible = "mediatek,mt7531";
 			reg = <0>;
+			interrupt-controller;
+			#interrupt-cells = <1>;
+			interrupt-parent = <&pio>;
+			interrupts = <53 IRQ_TYPE_LEVEL_HIGH>;
 			reset-gpios = <&pio 54 0>;
 
 			ports {
-- 
2.40.0