Commit 3ab7801d authored by Jacopo Mondi's avatar Jacopo Mondi Committed by Mauro Carvalho Chehab
Browse files

media: dt-bindings: media: rcar-vin: Describe optional ep properties 



Describe the optional endpoint properties for endpoint nodes of the R-Car
VIN interface device tree bindings documentation.

Signed-off-by: default avatarJacopo Mondi <jacopo+renesas@jmondi.org>
Acked-by: default avatarNiklas Söderlund <niklas.soderlund+renesas@ragnatech.se>
Reviewed-by: default avatarRob Herring <robh@kernel.org>
Signed-off-by: default avatarSakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: default avatarMauro Carvalho Chehab <mchehab+samsung@kernel.org>
parent 4c471ffe

Documentation/devicetree/bindings/media/rcar_vin.txt

+17 −0
Original line number Diff line number Diff line
@@ -45,6 +45,17 @@ The per-board settings Gen2 platforms: 
  Only the first one will be considered as each vin interface has one

  input port.



  - Optional properties for endpoint nodes:

    - hsync-active: see [1] for description. Default is active high.

    - vsync-active: see [1] for description. Default is active high.

      If both HSYNC and VSYNC polarities are not specified, embedded

      synchronization is selected.

    - field-active-even: see [1] for description. Default is active high.

    - bus-width: see [1] for description. The selected bus width depends on

      the SoC type and selected input image format.

      Valid values are: 8, 10, 12, 16, 24 and 32.

    - data-shift: see [1] for description. Valid values are 0 and 8.



The per-board settings Gen3 platforms:



Gen3 platforms can support both a single connected parallel input source
@@ -57,6 +68,10 @@ from local SoC CSI-2 receivers (port@1) depending on SoC. 
      from external SoC pins as described in video-interfaces.txt[1].

      Describing more than one endpoint in port@0 is invalid. Only VIN

      instances that are connected to external pins should have port@0.



      Endpoint nodes of port@0 support the optional properties listed in

      the Gen2 per-board settings description.



    - port@1 - sub-nodes describing one or more endpoints connected to

      the VIN from local SoC CSI-2 receivers. The endpoint numbers must

      use the following schema.
@@ -66,6 +81,8 @@ from local SoC CSI-2 receivers (port@1) depending on SoC. 
        - endpoint@2 - sub-node describing the endpoint connected to CSI40

        - endpoint@3 - sub-node describing the endpoint connected to CSI41



      Endpoint nodes of port@1 do not support any optional endpoint property.



Device node example for Gen2 platforms

--------------------------------------