xref: /openbmc/linux/Documentation/devicetree/bindings/net/wireless/ti,wl1251.txt (revision 57f0a29c)

* 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
- vio-supply :        phandle to regulator providing VIO

Optional properties:
- ti,wl1251-has-eeprom : boolean, the wl1251 has an eeprom connected, which
                         provides configuration data (calibration, MAC, ...)
- ti,power-gpio :	 GPIO connected to chip's PMEN pin if operated in
			 SPI mode
- 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 */
	};
};

&mmc3 {
	vmmc-supply = <&wlan_en>;

	bus-width = <4>;
	non-removable;
	ti,non-removable;
	cap-power-off-card;

	pinctrl-names = "default";
	pinctrl-0 = <&mmc3_pins>;

	#address-cells = <1>;
	#size-cells = <0>;

	wlan: wifi@1 {
		compatible = "ti,wl1251";

		reg = <1>;

		interrupt-parent = <&gpio1>;
		interrupts = <21 IRQ_TYPE_LEVEL_HIGH>;	/* GPIO_21 */

		ti,wl1251-has-eeprom;
	};
};