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-rw-r--r--Documentation/devicetree/bindings/i2c/i2c.txt3
1 files changed, 3 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/i2c/i2c.txt b/Documentation/devicetree/bindings/i2c/i2c.txt
index 819436b48fae..7aff425c099b 100644
--- a/Documentation/devicetree/bindings/i2c/i2c.txt
+++ b/Documentation/devicetree/bindings/i2c/i2c.txt
@@ -23,6 +23,9 @@ Optional properties (per bus)
These properties may not be supported by all drivers. However, if a driver
wants to support one of the below features, it should adapt these bindings.
+- bus-supply
+ phandle to the regulator that provides power to SCL/SDA.
+
- clock-frequency
frequency of bus clock in Hz.