On Wed, Feb 8, 2017 at 4:30 PM, Pavel Machek <pavel@xxxxxx> wrote: > On Wed 2017-02-08 15:36:09, Rob Herring wrote: >> On Fri, Feb 03, 2017 at 01:35:08PM +0100, Pavel Machek wrote: >> > >> > N900 contains front and back camera, with a switch between the >> > two. This adds support for the switch component, and it is now >> > possible to select between front and back cameras during runtime. >> > >> > This adds documentation for the devicetree binding. >> > >> > Signed-off-by: Sebastian Reichel <sre@xxxxxxxxxx> >> > Signed-off-by: Ivaylo Dimitrov <ivo.g.dimitrov.75@xxxxxxxxx> >> > Signed-off-by: Pavel Machek <pavel@xxxxxx> >> > >> > >> > 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. > >> BTW, there's a new mux-controller binding under review you might look >> at. It would only be needed here if the mux ctrl also controls other >> things. > > Do you have a pointer? Let me Google that for you: > >> > +Required Port nodes >> > +=================== >> > + >> > +More documentation on these bindings is available in >> > +video-interfaces.txt in the same directory. >> > + >> > +reg : The interface: >> > + 0 - port for image signal processor >> > + 1 - port for first camera sensor >> > + 2 - port for second camera sensor >> >> This could be used for display side as well. So describe these just as >> inputs and outputs. > > I'd prefer not to confuse people. I guess that would be 0 -- output > port, 1, 2 -- input ports... But this is media data, are you sure it > is good idea to change this? And I'd prefer something that can be reused by others. > > Pavel > -- > (english) http://www.livejournal.com/~pavelmachek > (cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
