1* Texas Instruments wl1251 wireless lan controller 2 3The wl1251 chip can be connected via SPI or via SDIO. This 4document describes the binding for the SPI connected chip. 5 6Required properties: 7- compatible : Should be "ti,wl1251" 8- reg : Chip select address of device 9- spi-max-frequency : Maximum SPI clocking speed of device in Hz 10- interrupts : Should contain interrupt line 11- vio-supply : phandle to regulator providing VIO 12 13Optional properties: 14- ti,wl1251-has-eeprom : boolean, the wl1251 has an eeprom connected, which 15 provides configuration data (calibration, MAC, ...) 16- ti,power-gpio : GPIO connected to chip's PMEN pin if operated in 17 SPI mode 18- Please consult Documentation/devicetree/bindings/spi/spi-bus.txt 19 for optional SPI connection related properties, 20 21Examples: 22 23&spi1 { 24 wl1251@0 { 25 compatible = "ti,wl1251"; 26 27 reg = <0>; 28 spi-max-frequency = <48000000>; 29 spi-cpol; 30 spi-cpha; 31 32 interrupt-parent = <&gpio2>; 33 interrupts = <10 IRQ_TYPE_NONE>; /* gpio line 42 */ 34 35 vio-supply = <&vio>; 36 ti,power-gpio = <&gpio3 23 GPIO_ACTIVE_HIGH>; /* 87 */ 37 }; 38}; 39 40&mmc3 { 41 vmmc-supply = <&wlan_en>; 42 43 bus-width = <4>; 44 non-removable; 45 ti,non-removable; 46 cap-power-off-card; 47 48 pinctrl-names = "default"; 49 pinctrl-0 = <&mmc3_pins>; 50 51 #address-cells = <1>; 52 #size-cells = <0>; 53 54 wlan: wifi@1 { 55 compatible = "ti,wl1251"; 56 57 reg = <1>; 58 59 interrupt-parent = <&gpio1>; 60 interrupts = <21 IRQ_TYPE_LEVEL_HIGH>; /* GPIO_21 */ 61 62 ti,wl1251-has-eeprom; 63 }; 64}; 65