From edb6e3ec374d5630dfc7a93ddd5c0f4864e98a9d Mon Sep 17 00:00:00 2001 From: Sebastian Reichel Date: Sat, 15 Feb 2014 00:05:56 +0100 Subject: [PATCH] Documentation: dt: wireless: Add wl1251 Add device tree binding documentation for Texas Instrument's wl1251 wireless lan chip. For now only the SPI binding is documented. Signed-off-by: Sebastian Reichel Signed-off-by: John W. Linville --- .../bindings/net/wireless/ti,wl1251.txt | 39 +++++++++++++++++++ 1 file changed, 39 insertions(+) create mode 100644 Documentation/devicetree/bindings/net/wireless/ti,wl1251.txt diff --git a/Documentation/devicetree/bindings/net/wireless/ti,wl1251.txt b/Documentation/devicetree/bindings/net/wireless/ti,wl1251.txt new file mode 100644 index 000000000000..189ae5cad8f7 --- /dev/null +++ b/Documentation/devicetree/bindings/net/wireless/ti,wl1251.txt @@ -0,0 +1,39 @@ +* Texas Instruments wl1251 wireless lan controller + +The wl1251 chip can be connected via SPI or via SDIO. This +document describes the binding for the SPI connected chip. + +Required properties: +- compatible : Should be "ti,wl1251" +- reg : Chip select address of device +- spi-max-frequency : Maximum SPI clocking speed of device in Hz +- interrupts : Should contain interrupt line +- interrupt-parent : Should be the phandle for the interrupt controller + that services interrupts for this device +- vio-supply : phandle to regulator providing VIO +- ti,power-gpio : GPIO connected to chip's PMEN pin + +Optional properties: +- ti,wl1251-has-eeprom : boolean, the wl1251 has an eeprom connected, which + provides configuration data (calibration, MAC, ...) +- Please consult Documentation/devicetree/bindings/spi/spi-bus.txt + for optional SPI connection related properties, + +Examples: + +&spi1 { + wl1251@0 { + compatible = "ti,wl1251"; + + reg = <0>; + spi-max-frequency = <48000000>; + spi-cpol; + spi-cpha; + + interrupt-parent = <&gpio2>; + interrupts = <10 IRQ_TYPE_NONE>; /* gpio line 42 */ + + vio-supply = <&vio>; + ti,power-gpio = <&gpio3 23 GPIO_ACTIVE_HIGH>; /* 87 */ + }; +};