Messages in this thread Patch in this message | | | From | Icenowy Zheng <> | Subject | [PATCH v3 1/2] dt-bindings: add device tree binding for Allwinner XR819 SDIO Wi-Fi | Date | Wed, 4 Oct 2017 00:59:43 +0800 |
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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> Acked-by: Rob Herring <robh@kernel.org> --- Changes in v3: - Renames the node name. - Adds ACK from Rob. Changes in v2: - Removed status property in example. - Added required property reg.
.../bindings/net/wireless/allwinner,xr819.txt | 38 ++++++++++++++++++++++ 1 file changed, 38 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..7ae40441e343 --- /dev/null +++ b/Documentation/devicetree/bindings/net/wireless/allwinner,xr819.txt @@ -0,0 +1,38 @@ +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: + + - reg : The SDIO function number, see "Use of function subnodes" in + ../../mmc/mmc.txt. + - 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; + + xr819: wifi@1 { + reg = <1>; + compatible = "allwinner,xr819"; + interrupt-parent = <&pio>; + interrupts = <6 10 IRQ_TYPE_EDGE_RISING>; + }; +}; -- 2.13.5
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