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 .../bindings/iio/multiplexer/iio-mux.txt           | 59 ++++++++++++++++++++++
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 create mode 100644 Documentation/devicetree/bindings/iio/multiplexer/iio-mux.txt

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+IIO multiplexer bindings
+
+If a multiplexer is used to select when hardware signal is fed to
+e.g. an ADC channel, these bindings describe that situation.
+
+Required properties:
+- compatible : "iio-mux"
+- io-channels : Channel node of the parent channel that has multiplexed
+		input.
+- io-channel-names : Should be "parent".
+- control-muxes : Node of the multiplexer that controls the input signal.
+- control-mux-names : Should be "mux".
+- #address-cells = <1>;
+- #size-cells = <0>;
+
+Required properties for iio-mux child nodes:
+- reg : The multiplexer number.
+
+Optional properties for iio-mux child nodes:
+- iio-ext-info : Array of string pairs, the first item in each pair is the
+		 iio ext_info attribute name, and the second item in each
+		 pair is the iio ext_info value for that attribute. The
+		 mux will write these ext_info values to the corresponding
+		 ext_info attributes on every multiplexer switch.