diff --git a/Documentation/i2c/instantiating-devices b/Documentation/i2c/instantiating-devices
index 6df095a6071e..0d85ac1935b7 100644
--- a/Documentation/i2c/instantiating-devices
+++ b/Documentation/i2c/instantiating-devices
@@ -81,6 +81,13 @@ additional properties which might be needed to set up the device, please refer
 to its devicetree documentation in Documentation/devicetree/bindings/.
 
 
+Method 1c: Declare the I2C devices via ACPI
+-------------------------------------------
+
+ACPI can also describe I2C devices. There is special documentation for this
+which is currently located at Documentation/acpi/enumeration.txt.
+
+
 Method 2: Instantiate the devices explicitly
 --------------------------------------------