diff mbox

[v4,1/2,media] dt-bindings: Add bindings for video-multiplexer device

Message ID 1493911039-10693-1-git-send-email-p.zabel@pengutronix.de (mailing list archive)
State New, archived
Headers show

Commit Message

Philipp Zabel May 4, 2017, 3:17 p.m. UTC
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: Sakari Ailus <sakari.ailus@linux.intel.com>
Reviewed-by: Sebastian Reichel <sebastian.reichel@collabora.co.uk>
---
No changes since v3 [1].

This was previously sent as part of Steve's i.MX media series [2].

[1] https://patchwork.kernel.org/patch/9711997/
[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

Comments

Rob Herring May 8, 2017, 1:37 p.m. UTC | #1
On Thu, May 04, 2017 at 05:17:18PM +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: Sakari Ailus <sakari.ailus@linux.intel.com>
> Reviewed-by: Sebastian Reichel <sebastian.reichel@collabora.co.uk>
> ---
> No changes since v3 [1].
> 
> This was previously sent as part of Steve's i.MX media series [2].
> 
> [1] https://patchwork.kernel.org/patch/9711997/
> [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

Acked-by: Rob Herring <robh@kernel.org>
diff mbox

Patch

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>;
+			};
+		};
+	};
+};