Hi, On Thu, May 04, 2017 at 03:38:56PM +0200, Philipp Zabel wrote: > Add bindings documentation for the video multiplexer device. > > Signed-off-by: Sascha Hauer <s.ha...@pengutronix.de> > Signed-off-by: Philipp Zabel <p.za...@pengutronix.de> > Signed-off-by: Steve Longerbeam <steve_longerb...@mentor.com> > Acked-by: Peter Rosin <p...@axentia.se> > Acked-by: Sakari Ailus <sakari.ai...@linux.intel.com>
Reviewed-by: Sebastian Reichel <sebastian.reic...@collabora.co.uk> -- Sebastian > --- > No changes since v2 [1]. > > This was previously sent as part of Steve's i.MX media series [2]. > > [1] https://patchwork.kernel.org/patch/9708235/ > [2] https://patchwork.kernel.org/patch/9647951/ > --- > .../devicetree/bindings/media/video-mux.txt | 60 > ++++++++++++++++++++++ > 1 file changed, 60 insertions(+) > create mode 100644 Documentation/devicetree/bindings/media/video-mux.txt > > diff --git a/Documentation/devicetree/bindings/media/video-mux.txt > b/Documentation/devicetree/bindings/media/video-mux.txt > new file mode 100644 > index 0000000000000..63b9dc913e456 > --- /dev/null > +++ b/Documentation/devicetree/bindings/media/video-mux.txt > @@ -0,0 +1,60 @@ > +Video Multiplexer > +================= > + > +Video multiplexers allow to select between multiple input ports. Video > received > +on the active input port is passed through to the output port. Muxes > described > +by this binding are controlled by a multiplexer controller that is described > by > +the bindings in Documentation/devicetree/bindings/mux/mux-controller.txt > + > +Required properties: > +- compatible : should be "video-mux" > +- mux-controls : mux controller node to use for operating the mux > +- #address-cells: should be <1> > +- #size-cells: should be <0> > +- port@*: at least three port nodes containing endpoints connecting to the > + source and sink devices according to of_graph bindings. The last port is > + the output port, all others are inputs. > + > +Optionally, #address-cells, #size-cells, and port nodes can be grouped under > a > +ports node as described in Documentation/devicetree/bindings/graph.txt. > + > +Example: > + > + mux: mux-controller { > + compatible = "gpio-mux"; > + #mux-control-cells = <0>; > + > + mux-gpios = <&gpio1 15 GPIO_ACTIVE_HIGH>; > + }; > + > + video-mux { > + compatible = "video-mux"; > + mux-controls = <&mux>; > + #address-cells = <1>; > + #size-cells = <0>; > + > + port@0 { > + reg = <0>; > + > + mux_in0: endpoint { > + remote-endpoint = <&video_source0_out>; > + }; > + }; > + > + port@1 { > + reg = <1>; > + > + mux_in1: endpoint { > + remote-endpoint = <&video_source1_out>; > + }; > + }; > + > + port@2 { > + reg = <2>; > + > + mux_out: endpoint { > + remote-endpoint = <&capture_interface_in>; > + }; > + }; > + }; > +}; > -- > 2.11.0 >
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