[PATCH] dt-bindings: add device tree binding for Allwinner XR819 SDIO Wi-Fi
From: Icenowy Zheng <icenowy@aosc.io>
Date: 2017-07-18 07:30:00
Also in:
linux-devicetree, linux-wireless, lkml
Subsystem:
networking drivers (wireless), open firmware and flattened device tree bindings, the rest · Maintainers:
Johannes Berg, Rob Herring, Krzysztof Kozlowski, Conor Dooley, Linus Torvalds
Allwinner XR819 is a SDIO Wi-Fi chip, which has the functionality to use an out-of-band interrupt pin instead of SDIO in-band interrupt. Add the device tree binding of this chip, in order to make it possible to add this interrupt pin to device trees. Signed-off-by: Icenowy Zheng <icenowy@aosc.io> --- .../bindings/net/wireless/allwinner,xr819.txt | 37 ++++++++++++++++++++++ 1 file changed, 37 insertions(+) create mode 100644 Documentation/devicetree/bindings/net/wireless/allwinner,xr819.txt
diff --git a/Documentation/devicetree/bindings/net/wireless/allwinner,xr819.txt b/Documentation/devicetree/bindings/net/wireless/allwinner,xr819.txt
new file mode 100644
index 000000000000..64dd9c1c0584
--- /dev/null
+++ b/Documentation/devicetree/bindings/net/wireless/allwinner,xr819.txt@@ -0,0 +1,37 @@ +Allwinner XRadio wireless SDIO devices + +This node provides properties for controlling the XRadio wireless device. The +node is expected to be specified as a child node to the SDIO controller that +connects the device to the system. + +Required properties: + + - compatible : Should be "allwinner,xr819". + +Optional properties: + - interrupt-parent : the phandle for the interrupt controller to which the + device interrupts are connected. + - interrupts : specifies attributes for the out-of-band interrupt (host-wake). + When not specified the device will use in-band SDIO interrupts. + +Example: + +mmc1: mmc@01c10000 { + #address-cells = <1>; + #size-cells = <0>; + + pinctrl-names = "default"; + pinctrl-0 = <&mmc1_pins_a>; + vmmc-supply = <®_vcc_wifi>; + mmc-pwrseq = <&wifi_pwrseq>; + bus-width = <4>; + non-removable; + status = "okay"; + + xr819: sdio_wifi@1 { + reg = <1>; + compatible = "allwinner,xr819"; + interrupt-parent = <&pio>; + interrupts = <6 10 IRQ_TYPE_EDGE_RISING>; + }; +};
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2.13.0