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Message-Id: <1495672189-29164-2-git-send-email-steve_longerbeam@mentor.com>
Date: Wed, 24 May 2017 17:29:16 -0700
From: Steve Longerbeam <slongerbeam@...il.com>
To: robh+dt@...nel.org, mark.rutland@....com, shawnguo@...nel.org,
kernel@...gutronix.de, fabio.estevam@....com,
linux@...linux.org.uk, mchehab@...nel.org, hverkuil@...all.nl,
nick@...anahar.org, markus.heiser@...marIT.de,
p.zabel@...gutronix.de, laurent.pinchart+renesas@...asonboard.com,
bparrot@...com, geert@...ux-m68k.org, arnd@...db.de,
sudipm.mukherjee@...il.com, minghsiu.tsai@...iatek.com,
tiffany.lin@...iatek.com, jean-christophe.trotin@...com,
horms+renesas@...ge.net.au, niklas.soderlund+renesas@...natech.se,
robert.jarzmik@...e.fr, songjun.wu@...rochip.com,
andrew-ct.chen@...iatek.com, gregkh@...uxfoundation.org,
shuah@...nel.org, sakari.ailus@...ux.intel.com, pavel@....cz
Cc: devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
linux-arm-kernel@...ts.infradead.org, linux-media@...r.kernel.org,
devel@...verdev.osuosl.org, Sascha Hauer <s.hauer@...gutronix.de>,
Steve Longerbeam <steve_longerbeam@...tor.com>
Subject: [PATCH v7 01/34] dt-bindings: Add bindings for video-multiplexer device
From: Philipp Zabel <p.zabel@...gutronix.de>
Add bindings documentation for the video multiplexer device.
Signed-off-by: Sascha Hauer <s.hauer@...gutronix.de>
Signed-off-by: Philipp Zabel <p.zabel@...gutronix.de>
Signed-off-by: Steve Longerbeam <steve_longerbeam@...tor.com>
Acked-by: Sakari Ailus <sakari.ailus@...ux.intel.com>
Reviewed-by: Sebastian Reichel <sebastian.reichel@...labora.co.uk>
Acked-by: Rob Herring <robh@...nel.org>
---
.../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 0000000..63b9dc9
--- /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>;
+ };
+ };
+ };
+};
--
2.7.4
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