diff options
Diffstat (limited to 'Documentation/devicetree/bindings/media/rcar_vin.txt')
| -rw-r--r-- | Documentation/devicetree/bindings/media/rcar_vin.txt | 54 |
1 files changed, 37 insertions, 17 deletions
diff --git a/Documentation/devicetree/bindings/media/rcar_vin.txt b/Documentation/devicetree/bindings/media/rcar_vin.txt index a19517e1c669..2f420050d57f 100644 --- a/Documentation/devicetree/bindings/media/rcar_vin.txt +++ b/Documentation/devicetree/bindings/media/rcar_vin.txt @@ -21,7 +21,9 @@ on Gen3 platforms to a CSI-2 receiver. - "renesas,vin-r8a7794" for the R8A7794 device - "renesas,vin-r8a7795" for the R8A7795 device - "renesas,vin-r8a7796" for the R8A7796 device + - "renesas,vin-r8a77965" for the R8A77965 device - "renesas,vin-r8a77970" for the R8A77970 device + - "renesas,vin-r8a77995" for the R8A77995 device - "renesas,rcar-gen2-vin" for a generic R-Car Gen2 or RZ/G1 compatible device. @@ -37,30 +39,51 @@ Additionally, an alias named vinX will need to be created to specify which video input device this is. The per-board settings Gen2 platforms: - - port sub-node describing a single endpoint connected to the vin - as described in video-interfaces.txt[1]. Only the first one will - be considered as each vin interface has one input port. + +- port - sub-node describing a single endpoint connected to the VIN + from external SoC pins as described in video-interfaces.txt[1]. + 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. + - data-enable-active: polarity of CLKENB signal, see [1] for + description. Default is active high. The per-board settings Gen3 platforms: Gen3 platforms can support both a single connected parallel input source -from external SoC pins (port0) and/or multiple parallel input sources -from local SoC CSI-2 receivers (port1) depending on SoC. +from external SoC pins (port@0) and/or multiple parallel input sources +from local SoC CSI-2 receivers (port@1) depending on SoC. - renesas,id - ID number of the VIN, VINx in the documentation. - ports - - port 0 - sub-node describing a single endpoint connected to the VIN - from external SoC pins described in video-interfaces.txt[1]. - Describing more then one endpoint in port 0 is invalid. Only VIN - instances that are connected to external pins should have port 0. - - port 1 - sub-nodes describing one or more endpoints connected to + - port@0 - sub-node describing a single endpoint connected to the VIN + 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. - - Endpoint 0 - sub-node describing the endpoint connected to CSI20 - - Endpoint 1 - sub-node describing the endpoint connected to CSI21 - - Endpoint 2 - sub-node describing the endpoint connected to CSI40 - - Endpoint 3 - sub-node describing the endpoint connected to CSI41 + - endpoint@0 - sub-node describing the endpoint connected to CSI20 + - endpoint@1 - sub-node describing the endpoint connected to CSI21 + - 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 -------------------------------------- @@ -107,9 +130,6 @@ Board setup example for Gen2 platforms (vin1 composite video input) status = "okay"; port { - #address-cells = <1>; - #size-cells = <0>; - vin1ep0: endpoint { remote-endpoint = <&adv7180>; bus-width = <8>; |