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-rw-r--r--Documentation/devicetree/bindings/i2c/i2c.txt5
1 files changed, 5 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/i2c/i2c.txt b/Documentation/devicetree/bindings/i2c/i2c.txt
index a21c359b9f02..df41f72afc87 100644
--- a/Documentation/devicetree/bindings/i2c/i2c.txt
+++ b/Documentation/devicetree/bindings/i2c/i2c.txt
@@ -87,6 +87,11 @@ wants to support one of the below features, it should adapt these bindings.
this information to detect a stalled bus more reliably, for example.
Can not be combined with 'multi-master'.
+- smbus
+ states that additional SMBus restrictions and features apply to this bus.
+ Examples of features are SMBusHostNotify and SMBusAlert. Examples of
+ restrictions are more reserved addresses and timeout definitions.
+
Required properties (per child device)
--------------------------------------