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-rw-r--r--Documentation/devicetree/bindings/unittest.txt59
1 files changed, 58 insertions, 1 deletions
diff --git a/Documentation/devicetree/bindings/unittest.txt b/Documentation/devicetree/bindings/unittest.txt
index 0f92a22fddf..8933211f32f 100644
--- a/Documentation/devicetree/bindings/unittest.txt
+++ b/Documentation/devicetree/bindings/unittest.txt
@@ -1,4 +1,4 @@
-* OF selftest platform device
+1) OF selftest platform device
** selftest
@@ -12,3 +12,60 @@ Example:
compatible = "selftest";
status = "okay";
};
+
+2) OF selftest i2c adapter platform device
+
+** platform device unittest adapter
+
+Required properties:
+- compatible: must be selftest-i2c-bus
+
+Children nodes contain selftest i2c devices.
+
+Example:
+ selftest-i2c-bus {
+ compatible = "selftest-i2c-bus";
+ status = "okay";
+ };
+
+3) OF selftest i2c device
+
+** I2C selftest device
+
+Required properties:
+- compatible: must be selftest-i2c-dev
+
+All other properties are optional
+
+Example:
+ selftest-i2c-dev {
+ compatible = "selftest-i2c-dev";
+ status = "okay";
+ };
+
+4) OF selftest i2c mux device
+
+** I2C selftest mux
+
+Required properties:
+- compatible: must be selftest-i2c-mux
+
+Children nodes contain selftest i2c bus nodes per channel.
+
+Example:
+ selftest-i2c-mux {
+ compatible = "selftest-i2c-mux";
+ status = "okay";
+ #address-cells = <1>;
+ #size-cells = <0>;
+ channel-0 {
+ reg = <0>;
+ #address-cells = <1>;
+ #size-cells = <0>;
+ i2c-dev {
+ reg = <8>;
+ compatible = "selftest-i2c-dev";
+ status = "okay";
+ };
+ };
+ };