The Allwinner XR819 SDIO Wi-Fi chip supports an out-of-band interrupt line, and the in-band interrupt is also supported.
However the current out-of-tree driver uses the out-of-band interrupt by default. This patchset adds the device tree binding for the chip as well as the out-of-band interrupt, then adds the interrupt to the device tree of Orange Pi Zero. Icenowy Zheng (1): dt-bindings: add device tree binding for Allwinner XR819 SDIO Wi-Fi Sergey Matyukevich (1): ARM: sun8i: h2+: specify wifi interrupts for Orange Pi Zero .../bindings/net/wireless/allwinner,xr819.txt | 38 ++++++++++++++++++++++ arch/arm/boot/dts/sun8i-h2-plus-orangepi-zero.dts | 3 ++ 2 files changed, 41 insertions(+) create mode 100644 Documentation/devicetree/bindings/net/wireless/allwinner,xr819.txt -- 2.13.5
