Add binding document for Mellanox switch devices.
Signed-off-by: Vadim Pasternak <vadimp@xxxxxxxxxxxx>
---
.../devicetree/bindings/net/mellanox,mlxsw.txt | 46 ++++++++++++++++++++++
1 file changed, 46 insertions(+)
create mode 100644 Documentation/devicetree/bindings/net/mellanox,mlxsw.txt
diff --git a/Documentation/devicetree/bindings/net/mellanox,mlxsw.txt b/Documentation/devicetree/bindings/net/mellanox,mlxsw.txt
new file mode 100644
index 0000000..55de5ff
--- /dev/null
+++ b/Documentation/devicetree/bindings/net/mellanox,mlxsw.txt
@@ -0,0 +1,46 @@
+Mellanox Technologies Switch ASICs
+
+This file provides information, what the device node
+for the Switch ASIC interface contains.
+
+Required properties:
+- compatible : "mellanox,mlxsw_minimal"
+- reg : The I2C address of the device.
+
+Optional properties:
+- cooling-phandle : phandle of the cooling device, which is to be used
+ for the zone thermal control.
+ If absent, cooling device controlled internally by
+ the ASIC may be used.
+
+- trips : the nodes to describe a point in the temperature
+ domain with key temperatures at which cooling is
+ recommended. Each node must contain the next values:
+ - type: the trip type. Expected values are:
+ 0 - a trip point to enable active cooling;
+ 1 - a trip point to enable passive cooling;
+ 2 - a trip point to notify emergency;
+ - temperature: unsigned integer indicating the trip
+ temperature level in millicelsius;
+ - minimum cooling state allowed within the trip node;
+ - maximum cooling state allowed within the trip node;
+
+Example:
+ asic_thermal: mlxsw_minimal@48 {
+ compatible = "mlxsw_minimal";
+ reg = <0x48>;
+ status = "disabled";
+ cooling-phandle = <&cooling>;
+
+ trips {
+ trip@0 {
+ trip = <0 75000 0 0>;
+ };
+ trip@1 {
+ trip = <2 85000 1 5>;
+ };
+ trip@3 {
+ trip = <2 105000 5 5>;
+ };
+ };
+ };
--
2.1.4
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