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authorSebastian Reichel <sre@debian.org>2014-02-15 00:05:56 +0100
committerJohn W. Linville <linville@tuxdriver.com>2014-02-28 14:08:27 -0500
commitedb6e3ec374d5630dfc7a93ddd5c0f4864e98a9d (patch)
tree69c79e6d05fc9998f08a56b830df2891267c6049 /Documentation/devicetree/bindings/net
parentwl1251: spi: add device tree support (diff)
downloadlinux-dev-edb6e3ec374d5630dfc7a93ddd5c0f4864e98a9d.tar.xz
linux-dev-edb6e3ec374d5630dfc7a93ddd5c0f4864e98a9d.zip
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 <sre@debian.org> Signed-off-by: John W. Linville <linville@tuxdriver.com>
Diffstat (limited to 'Documentation/devicetree/bindings/net')
-rw-r--r--Documentation/devicetree/bindings/net/wireless/ti,wl1251.txt39
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diff --git a/Documentation/devicetree/bindings/net/wireless/ti,wl1251.txt b/Documentation/devicetree/bindings/net/wireless/ti,wl1251.txt
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+* 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 */
+ };
+};