mt7622: bpi-r64: enable using mt7531 switch irq

Now that we support link-state-change interrupts, wire up MT7531 IRQ
line which is connected to GPIO#53 according to the schematics [1].

As a result, PHY state no longer needs to be polled on that board.

[1]: https://forum.banana-pi.org/t/bpi-r64-mt7622-schematic-diagram-public/10118
Signed-off-by: Daniel Golle <daniel@makrotopia.org>

diff --git a/target/linux/mediatek/patches-5.10/180-dts-mt7622-bpi-r64-add-mt7531-irq.patch b/target/linux/mediatek/patches-5.10/180-dts-mt7622-bpi-r64-add-mt7531-irq.patch
new file mode 100644 (file)
index 0000000..80ceb49
--- /dev/null
+++ b/target/linux/mediatek/patches-5.10/180-dts-mt7622-bpi-r64-add-mt7531-irq.patch
@@ -0,0 +1,13 @@
+--- a/arch/arm64/boot/dts/mediatek/mt7622-bananapi-bpi-r64.dts
++++ b/arch/arm64/boot/dts/mediatek/mt7622-bananapi-bpi-r64.dts
+@@ -160,6 +160,10 @@
+               switch@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 {