Re: [PATCH] devicetree: Add video bus switch

Pavel Machek
2017-02-10T19:54:39Z

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> >>> > diff --git a/Documentation/devicetree/bindings/media/video-bus-switch.txt b/Documentation/devicetree/bindings/media/video-bus-switch.txt
> >>> > new file mode 100644
> >>> > index 0000000..1b9f8e0
> >>> > --- /dev/null
> >>> > +++ b/Documentation/devicetree/bindings/media/video-bus-switch.txt
> >>> > @@ -0,0 +1,63 @@
> >>> > +Video Bus Switch Binding
> >>> > +========================
> >>>
> >>> I'd call it a mux rather than switch.
> >>
> >> It is a switch, not a multiplexor (
> >> https://en.wikipedia.org/wiki/Multiplexing ). Only one camera can
> >> operate at a time.
> >
> > It's no different than an i2c mux. It's one at a time.

Take a look at the wikipedia. If you do "one at a time" at 100Hz, you
can claim it is time-domain multiplex. But we are plain switching the
cameras. It takes second (or so) to setup the pipeline.

This is not multiplex.

Pavel
--
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