devicetree: add at86rf230 bindings

This patch adds devicetree bindings for the at86rf230 IEEE 802.15.4 SPI
device driver.

Signed-off-by: Alexander Aring <alex.aring@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/Documentation/devicetree/bindings/net/ieee802154/at86rf230.txt b/Documentation/devicetree/bindings/net/ieee802154/at86rf230.txt
new file mode 100644 (file)
index 0000000..d3bbdde
--- /dev/null
+++ b/Documentation/devicetree/bindings/net/ieee802154/at86rf230.txt
@@ -0,0 +1,23 @@
+* AT86RF230 IEEE 802.15.4 *
+
+Required properties:
+  - compatible:                should be "atmel,at86rf230", "atmel,at86rf231",
+                       "atmel,at86rf233" or "atmel,at86rf212"
+  - spi-max-frequency: maximal bus speed, should be set to 7500000 depends
+                       sync or async operation mode
+  - reg:               the chipselect index
+  - interrupts:                the interrupt generated by the device
+
+Optional properties:
+  - reset-gpio:                GPIO spec for the rstn pin
+  - sleep-gpio:                GPIO spec for the slp_tr pin
+
+Example:
+
+       at86rf231@0 {
+               compatible = "atmel,at86rf231";
+               spi-max-frequency = <7500000>;
+               reg = <0>;
+               interrupts = <19 1>;
+               interrupt-parent = <&gpio3>;
+       };