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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>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
This commit is contained in:
Marco Felsch 2020-03-12 11:31:46 +01:00 committed by Mauro Carvalho Chehab
parent 0556f1d580
commit fc79884b00
1 changed files with 105 additions and 7 deletions
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112
Documentation/devicetree/bindings/media/i2c/tvp5150.txt
View File

@ -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>;
};