Re: [PATCH v3 1/2] [media] dt-bindings: Add bindings for video-multiplexer device

Sebastian Reichel
2017-05-04T14:13:47Z

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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.hauer@pengutronix.de>
> Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
> Signed-off-by: Steve Longerbeam <steve_longerbeam@mentor.com>
> Acked-by: Peter Rosin <peda@axentia.se>
> Acked-by: Sakari Ailus <sakari.ailus@linux.intel.com>

Reviewed-by: Sebastian Reichel <sebastian.reichel@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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