On 11/17/2016 12:48 AM, Peter Rosin wrote: > --- > .../bindings/iio/multiplexer/iio-mux.txt | 59 > ++++++++++++++++++++++ > 1 file changed, 59 insertions(+) > create mode 100644 > Documentation/devicetree/bindings/iio/multiplexer/iio-mux.txt > > diff --git a/Documentation/devicetree/bindings/iio/multiplexer/iio-mux.txt > b/Documentation/devicetree/bindings/iio/multiplexer/iio-mux.txt > new file mode 100644 > index 000000000000..2f5c7fc35a42 > --- /dev/null > +++ b/Documentation/devicetree/bindings/iio/multiplexer/iio-mux.txt > @@ -0,0 +1,59 @@ > +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.
This can't go into the devicetree in its current form as it exposes implementation details of the Linux kernel drivers.
