Add documentation how devicetree can be used to configure ath9k based
devices.
Signed-off-by: Martin Blumenstingl <martin.blumenstingl@xxxxxxxxxxxxxx>
---
changes in v2 -> v3:
- improved wording of the qca,disable-2ghz and qca,disable-5ghz properties
- replaced qca,eeprom-name with qca,no-eeprom (the eeprom name is now
built automatically within ath9k). The naming was chosen to stay
consistent with other drivers (such as davicom-dm9000 and via-velocity)
- added reference to the mac-address and local-mac-address properties
- removed invalid device_type property from the example
.../devicetree/bindings/net/wireless/qca,ath9k.txt | 46 ++++++++++++++++++++++
1 file changed, 46 insertions(+)
create mode 100644 Documentation/devicetree/bindings/net/wireless/qca,ath9k.txt
diff --git a/Documentation/devicetree/bindings/net/wireless/qca,ath9k.txt b/Documentation/devicetree/bindings/net/wireless/qca,ath9k.txt
new file mode 100644
index 0000000..ff83fd4
--- /dev/null
+++ b/Documentation/devicetree/bindings/net/wireless/qca,ath9k.txt
@@ -0,0 +1,46 @@
+* Qualcomm Atheros ath9k wireless devices
+
+This node provides properties for configuring the ath9k wireless device. The
+node is expected to be specified as a child node of the PCI controller to
+which the wireless chip is connected.
+
+Required properties:
+- compatible: Should be "qca,ath9k"
+
+Optional properties:
+- reg: Address and length of the register set for the device.
+- qca,gpio-mask: The GPIO mask
+- qca,gpio-val: The GPIO value
+- qca,led-pin: The GPIO number to which the LED is connected
+- qca,led-active-high: The LED is active when the GPIO is HIGH
+- qca,clk-25mhz: Defines that at 25MHz clock is used
+- qca,no-eeprom: Indicates that there is on physical EEPROM connected
+ to the ath9k wireless chip (in this case the
+ calibration / EEPROM data will be loaded from
+ userspace using the firmware mechanism)
+- qca,check-eeprom-endianness: Allow checking the EEPROM endianness and
+ swapping of the EEPROM data if required
+- qca,disable-2ghz: Overrides the settings from the EEPROM and disables
+ the 2.4GHz band, even if enabled in the EEPROM
+- qca,disable-5ghz: Overrides the settings from the EEPROM and disables
+ the 5GHz band, even if enabled in the EEPROM
+- mac-address: See ethernet.txt in the parent directory
+- local-mac-address: See ethernet.txt in the parent directory
+
+In this example, the node is defined as child node of the PCI controller.
+
+pci {
+ pcie@0 {
+ reg = <0 0 0 0 0>;
+ #interrupt-cells = <1>;
+ #size-cells = <2>;
+ #address-cells = <3>;
+ device_type = "pci";
+
+ ath9k@0,0 {
+ compatible = "qca,ath9k";
+ reg = <0 0 0 0 0>;
+ qca,disable-5ghz;
+ };
+ };
+};
--
2.9.0
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