Re: [PATCH] dt-bindings: add device tree binding for Allwinner XR819 SDIO Wi-Fi
From: Rob Herring <hidden>
Date: 2017-07-24 17:55:30
Also in:
linux-devicetree, linux-wireless, lkml
On Tue, Jul 18, 2017 at 03:29:40PM +0800, Icenowy Zheng wrote:
quoted hunk ↗ jump to hunk
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 <redacted> --- .../bindings/net/wireless/allwinner,xr819.txt | 37 ++++++++++++++++++++++ 1 file changed, 37 insertions(+) create mode 100644 Documentation/devicetree/bindings/net/wireless/allwinner,xr819.txtdiff --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".
reg is also required.
+
+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";Don't show status in examples.
+
+ xr819: sdio_wifi@1 {wifi@1
+ reg = <1>; + compatible = "allwinner,xr819"; + interrupt-parent = <&pio>; + interrupts = <6 10 IRQ_TYPE_EDGE_RISING>; + }; +}; -- 2.13.0