Documentation/devicetree/bindings/net/wireless/ti,wl1251.txt

   1 * Texas Instruments wl1251 wireless lan controller
   2
   3 The wl1251 chip can be connected via SPI or via SDIO. This
   4 document describes the binding for the SPI connected chip.
   5
   6 Required 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
  13 Optional 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
  21 Examples:
  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 };