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authorMarco Felsch <m.felsch@pengutronix.de>2018-06-27 18:17:10 +0200
committerMarco Felsch <m.felsch@pengutronix.de>2019-08-19 16:09:10 +0200
commite31f9c70de9a929f8de6dcaa79d65ef96cfb71f0 (patch)
treef9cb248463f9f1b5f7d4f81cc3f0c04ad60dc9f5
parentc72f2f2433fdd91cc19589e92e39421c83d174d1 (diff)
downloadlinux-0-day-e31f9c70de9a929f8de6dcaa79d65ef96cfb71f0.tar.gz
linux-0-day-e31f9c70de9a929f8de6dcaa79d65ef96cfb71f0.tar.xz
media: dt-bindings: tvp5150: Add input port connectors DT bindings
The TVP5150/1 decoders support different video input sources to their AIP1A/B pins. Possible configurations are as follows: - Analog Composite signal connected to AIP1A. - Analog Composite signal connected to AIP1B. - Analog S-Video Y (luminance) and C (chrominance) signals connected to AIP1A and AIP1B respectively. This patch extends the device tree bindings documentation to describe how the input connectors for these devices should be defined in a DT. Signed-off-by: Marco Felsch <m.felsch@pengutronix.de> Reviewed-by: Rob Herring <robh@kernel.org> --- Changelog: v7: Hi Rob, I droped your r b tag because I changed the bindings in this patch version. Please can you have a look on it again? - fix missing AIP1B svideo connection (description and examples) v3: - remove examples for one and two inputs - replace space by tabs v2: - adapt port layout in accordance with https://www.spinics.net/lists/linux-media/msg138546.html with the svideo-connector deviation (use only one endpoint)
-rw-r--r--Documentation/devicetree/bindings/media/i2c/tvp5150.txt112
1 files changed, 105 insertions, 7 deletions
diff --git a/Documentation/devicetree/bindings/media/i2c/tvp5150.txt b/Documentation/devicetree/bindings/media/i2c/tvp5150.txt
index 8c0fc1a26bf0..28b64ad149ef 100644
--- a/Documentation/devicetree/bindings/media/i2c/tvp5150.txt
+++ b/Documentation/devicetree/bindings/media/i2c/tvp5150.txt
@@ -12,11 +12,32 @@ Optional Properties:
- pdn-gpios: phandle for the GPIO connected to the PDN pin, if any.
- reset-gpios: phandle for the GPIO connected to the RESETB pin, if any.
-The device node must contain one 'port' child node for its digital output
-video port, in accordance with the video interface bindings defined in
-Documentation/devicetree/bindings/media/video-interfaces.txt.
+The device node must contain one 'port' child node per device physical input
+and output port, in accordance with the video interface bindings defined in
+Documentation/devicetree/bindings/media/video-interfaces.txt. The port nodes
+are numbered as follows
-Required Endpoint Properties for parallel synchronization:
+ Name Type Port
+ --------------------------------------
+ AIP1A sink 0
+ AIP1B sink 1
+ Y-OUT src 2
+
+The device node must contain at least one sink port and the src port. Each input
+port must be linked to an endpoint defined in
+Documentation/devicetree/bindings/display/connector/analog-tv-connector.txt. The
+port/connector layout is as follows
+
+tvp-5150 port@0 (AIP1A)
+ endpoint@0 -----------> Comp0-Con port
+ endpoint@1 ------+----> Svideo-Con port
+tvp-5150 port@1 (AIP1B) |
+ endpoint@1 ------+
+ endpoint@0 -----------> Comp1-Con port
+tvp-5150 port@2
+ endpoint (video bitstream output at YOUT[0-7] parallel bus)
+
+Required Endpoint Properties for parallel synchronization on output port:
- hsync-active: active state of the HSYNC signal. Must be <1> (HIGH).
- vsync-active: active state of the VSYNC signal. Must be <1> (HIGH).
@@ -26,17 +47,94 @@ Required Endpoint Properties for parallel synchronization:
If none of hsync-active, vsync-active and field-even-active is specified,
the endpoint is assumed to use embedded BT.656 synchronization.
-Example:
+Example - three input sources:
+
+comp_connector_0 {
+ compatible = "composite-video-connector";
+ label = "Composite0";
+
+ port {
+ composite0_to_tvp5150: endpoint {
+ remote-endpoint = <&tvp5150_to_composite0>;
+ };
+ };
+};
+
+comp_connector_1 {
+ compatible = "composite-video-connector";
+ label = "Composite1";
+
+ port {
+ composite1_to_tvp5150: endpoint {
+ remote-endpoint = <&tvp5150_to_composite1>;
+ };
+ };
+};
+
+svideo_connector {
+ compatible = "svideo-connector";
+ label = "S-Video";
+
+ port {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ svideo_luma_to_tvp5150: endpoint@0 {
+ reg = <0>;
+ remote-endpoint = <&tvp5150_to_svideo_luma>;
+ };
+
+ svideo_chroma_to_tvp5150: endpoint@1 {
+ reg = <1>;
+ remote-endpoint = <&tvp5150_to_svideo_chroma>;
+ };
+ };
+};
&i2c2 {
- ...
tvp5150@5c {
compatible = "ti,tvp5150";
reg = <0x5c>;
pdn-gpios = <&gpio4 30 GPIO_ACTIVE_LOW>;
reset-gpios = <&gpio6 7 GPIO_ACTIVE_LOW>;
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ port@0 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ reg = <0>;
+
+ tvp5150_to_composite0: endpoint@0 {
+ reg = <0>;
+ remote-endpoint = <&composite0_to_tvp5150>;
+ };
+
+ tvp5150_to_svideo_luma: endpoint@1 {
+ reg = <1>;
+ remote-endpoint = <&svideo_luma_to_tvp5150>;
+ };
+ };
+
+ port@1 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ reg = <1>;
+
+ tvp5150_to_composite1: endpoint@0 {
+ reg = <0>;
+ remote-endpoint = <&composite1_to_tvp5150>;
+ };
+
+ tvp5150_to_svideo_chroma: endpoint@1 {
+ reg = <1>;
+ remote-endpoint = <&svideo_chroma_to_tvp5150>;
+ };
+ };
+
+ port@2 {
+ reg = <2>;
- port {
tvp5150_1: endpoint {
remote-endpoint = <&ccdc_ep>;
};