dt-bindings: net: add mt76 wireless device binding

Add documentation describing how device tree can be used to configure
wireless chips supported by the mt76 driver.

Signed-off-by: Felix Fietkau <nbd@nbd.name>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>

diff --git a/Documentation/devicetree/bindings/net/wireless/mediatek,mt76.txt b/Documentation/devicetree/bindings/net/wireless/mediatek,mt76.txt
new file mode 100644 (file)
index 0000000..0c17a0e
--- /dev/null
+++ b/Documentation/devicetree/bindings/net/wireless/mediatek,mt76.txt
@@ -0,0 +1,32 @@
+* MediaTek mt76xx devices
+
+This node provides properties for configuring the MediaTek mt76xx wireless
+device. The node is expected to be specified as a child node of the PCI
+controller to which the wireless chip is connected.
+
+Optional properties:
+
+- mac-address: See ethernet.txt in the parent directory
+- local-mac-address: See ethernet.txt in the parent directory
+- ieee80211-freq-limit: See ieee80211.txt
+- mediatek,mtd-eeprom: Specify a MTD partition + offset containing EEPROM data
+
+Optional nodes:
+- led: Properties for a connected LED
+  Optional properties:
+    - led-sources: See Documentation/devicetree/bindings/leds/common.txt
+
+&pcie {
+       pcie0 {
+               wifi@0,0 {
+                       compatible = "mediatek,mt76";
+                       reg = <0x0000 0 0 0 0>;
+                       ieee80211-freq-limit = <5000000 6000000>;
+                       mediatek,mtd-eeprom = <&factory 0x8000>;
+
+                       led {
+                               led-sources = <2>;
+                       };
+               };
+       };
+};