On Mon, Aug 13, 2018 at 11:25:03AM +0200, Marco Felsch wrote: > 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@xxxxxxxxxxxxxx> > > --- > Changelog: > 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) > --- > .../devicetree/bindings/media/i2c/tvp5150.txt | 191 +++++++++++++++++- > 1 file changed, 185 insertions(+), 6 deletions(-) > > diff --git a/Documentation/devicetree/bindings/media/i2c/tvp5150.txt b/Documentation/devicetree/bindings/media/i2c/tvp5150.txt > index 8c0fc1a26bf0..d647d671f14a 100644 > --- a/Documentation/devicetree/bindings/media/i2c/tvp5150.txt > +++ b/Documentation/devicetree/bindings/media/i2c/tvp5150.txt > @@ -12,11 +12,31 @@ 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 -----------> 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). > @@ -26,7 +46,140 @@ 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: > +Examples: Is it really necessary to enumerate every possibility? Just show the most complicated case which is a superset of the rest. > + > +One Input: > + > +connector { > + compatible = "composite-video-connector"; > + label = "Composite0"; > + > + port { > + composite0_to_tvp5150: endpoint { > + remote-endpoint = <&tvp5150_to_composite0>; > + }; > + }; > +}; > + > +&i2c2 { > + ... > + tvp5150@5c { > + compatible = "ti,tvp5150"; > + reg = <0x5c>; > + pdn-gpios = <&gpio4 30 GPIO_ACTIVE_LOW>; > + reset-gpios = <&gpio6 7 GPIO_ACTIVE_LOW>; > + > + port@0 { > + reg = <0>; > + > + tvp5150_to_composite0: endpoint { > + remote-endpoint = <&composite0_to_tvp5150>; > + }; > + }; > + > + port@2 { > + reg = <2>; > + > + tvp5150_1: endpoint { > + remote-endpoint = <&ccdc_ep>; > + }; > + }; > + }; > +}; > + > +Two Inputs: > + > +comp_connector_1 { > + compatible = "composite-video-connector"; > + label = "Composite1"; > + > + port { > + composite1_to_tvp5150: endpoint { > + remote-endpoint = <&tvp5150_to_composite1>; > + }; > + }; > +}; > + > +svid_connector { > + compatible = "svideo-connector"; > + label = "S-Video"; > + > + port { > + svideo_to_tvp5150: endpoint { > + remote-endpoint = <&tvp5150_to_svideo>; > + }; > + }; > +}; > + > +&i2c2 { > + ... > + tvp5150@5c { > + compatible = "ti,tvp5150"; > + reg = <0x5c>; > + pdn-gpios = <&gpio4 30 GPIO_ACTIVE_LOW>; > + reset-gpios = <&gpio6 7 GPIO_ACTIVE_LOW>; > + > + port@0 { > + reg = <0>; > + > + tvp5150_to_svideo: endpoint@1 { > + reg = <1>; > + remote-endpoint = <&svideo_to_tvp5150>; > + }; > + }; > + > + port@1 { > + reg = <1>; > + > + tvp5150_to_composite1: endpoint { > + remote-endpoint = <&composite1_to_tvp5150>; > + }; > + }; Spaces used instead of tabs. > + > + port@2 { > + reg = <2>; > + > + tvp5150_1: endpoint { > + remote-endpoint = <&ccdc_ep>; > + }; > + }; > + }; > +}; > + > +Three Inputs: > + > +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>; > + }; > + }; > +}; > + > +svid_connector { > + compatible = "svideo-connector"; > + label = "S-Video"; > + > + port { > + svideo_to_tvp5150: endpoint { > + remote-endpoint = <&tvp5150_to_svideo>; > + }; > + }; > +}; > > &i2c2 { > ... > @@ -36,7 +189,33 @@ Example: > pdn-gpios = <&gpio4 30 GPIO_ACTIVE_LOW>; > reset-gpios = <&gpio6 7 GPIO_ACTIVE_LOW>; > > - port { > + 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: endpoint@1 { > + reg = <1>; > + remote-endpoint = <&svideo_to_tvp5150>; > + }; > + }; > + > + port@1 { > + reg = <1>; > + > + tvp5150_to_composite1: endpoint { > + remote-endpoint = <&composite1_to_tvp5150>; > + }; > + }; Here too. > + > + port@2 { > + reg = <2>; > + > tvp5150_1: endpoint { > remote-endpoint = <&ccdc_ep>; > }; > -- > 2.18.0 >
