Documentation/devicetree/bindings/media/i2c/tvp5150.txt

   1 * Texas Instruments TVP5150 and TVP5151 video decoders
   2
   3 The TVP5150 and TVP5151 are video decoders that convert baseband NTSC and PAL
   4 (and also SECAM in the TVP5151 case) video signals to either 8-bit 4:2:2 YUV
   5 with discrete syncs or 8-bit ITU-R BT.656 with embedded syncs output formats.
   6
   7 Required Properties:
   8 - compatible: value must be "ti,tvp5150"
   9 - reg: I2C slave address
  10
  11 Optional Properties:
  12 - pdn-gpios: phandle for the GPIO connected to the PDN pin, if any.
  13 - reset-gpios: phandle for the GPIO connected to the RESETB pin, if any.
  14
  15 Optional nodes:
  16 - connectors: The input connectors of tvp5150 have to be defined under
  17   a subnode name "connectors" using the following format:
  18
  19         input-connector-name {
  20                 input connector properties
  21         };
  22
  23 Each input connector must contain the following properties:
  24
  25         - label: a name for the connector.
  26         - input: the input connector.
  27
  28 The possible values for the "input" property are:
  29         0: Composite0
  30         1: Composite1
  31         2: S-Video
  32
  33 and on a tvp5150am1 and tvp5151 there is another:
  34         4: Signal generator
  35
  36 The list of valid input connectors are defined in dt-bindings/media/tvp5150.h
  37 header file and can be included by device tree source files.
  38
  39 Each input connector can be defined only once.
  40
  41 The device node must contain one 'port' child node for its digital output
  42 video port, in accordance with the video interface bindings defined in
  43 Documentation/devicetree/bindings/media/video-interfaces.txt.
  44
  45 Required Endpoint Properties for parallel synchronization:
  46
  47 - hsync-active: active state of the HSYNC signal. Must be <1> (HIGH).
  48 - vsync-active: active state of the VSYNC signal. Must be <1> (HIGH).
  49 - field-even-active: field signal level during the even field data
  50   transmission. Must be <0>.
  51
  52 If none of hsync-active, vsync-active and field-even-active is specified,
  53 the endpoint is assumed to use embedded BT.656 synchronization.
  54
  55 Example:
  56
  57 &i2c2 {
  58         ...
  59         tvp5150@5c {
  60                 compatible = "ti,tvp5150";
  61                 reg = <0x5c>;
  62                 pdn-gpios = <&gpio4 30 GPIO_ACTIVE_LOW>;
  63                 reset-gpios = <&gpio6 7 GPIO_ACTIVE_LOW>;
  64
  65                 connectors {
  66                         composite0 {
  67                                 label = "Composite0";
  68                                 input = <TVP5150_COMPOSITE0>;
  69                         };
  70
  71                         composite1 {
  72                                 label = "Composite1";
  73                                 input = <TVP5150_COMPOSITE1>;
  74                         };
  75
  76                         s-video {
  77                                 label = "S-Video";
  78                                 input = <TVP5150_SVIDEO>;
  79                         };
  80                 };
  81
  82                 port {
  83                         tvp5150_1: endpoint {
  84                                 remote-endpoint = <&ccdc_ep>;
  85                         };
  86                 };
  87         };
  88 };