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Diffstat (limited to 'Documentation/devicetree/bindings/media/xilinx')
4 files changed, 194 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/media/xilinx/video.txt b/Documentation/devicetree/bindings/media/xilinx/video.txt new file mode 100644 index 000000000000..cbd46fa0988f --- /dev/null +++ b/Documentation/devicetree/bindings/media/xilinx/video.txt @@ -0,0 +1,35 @@ +DT bindings for Xilinx video IP cores +------------------------------------- + +Xilinx video IP cores process video streams by acting as video sinks and/or +sources. They are connected by links through their input and output ports, +creating a video pipeline. + +Each video IP core is represented by an AMBA bus child node in the device +tree using bindings documented in this directory. Connections between the IP +cores are represented as defined in ../video-interfaces.txt. + +The whole pipeline is represented by an AMBA bus child node in the device +tree using bindings documented in ./xlnx,video.txt. + +Common properties +----------------- + +The following properties are common to all Xilinx video IP cores. + +- xlnx,video-format: This property represents a video format transmitted on an + AXI bus between video IP cores, using its VF code as defined in "AXI4-Stream + Video IP and System Design Guide" [UG934]. How the format relates to the IP + core is decribed in the IP core bindings documentation. + +- xlnx,video-width: This property qualifies the video format with the sample + width expressed as a number of bits per pixel component. All components must + use the same width. + +- xlnx,cfa-pattern: When the video format is set to Mono/Sensor, this property + describes the sensor's color filter array pattern. Supported values are + "bggr", "gbrg", "grbg", "rggb" and "mono". If not specified, the pattern + defaults to "mono". + + +[UG934] http://www.xilinx.com/support/documentation/ip_documentation/axi_videoip/v1_0/ug934_axi_videoIP.pdf diff --git a/Documentation/devicetree/bindings/media/xilinx/xlnx,v-tc.txt b/Documentation/devicetree/bindings/media/xilinx/xlnx,v-tc.txt new file mode 100644 index 000000000000..2aed3b4a6cf1 --- /dev/null +++ b/Documentation/devicetree/bindings/media/xilinx/xlnx,v-tc.txt @@ -0,0 +1,33 @@ +Xilinx Video Timing Controller (VTC) +------------------------------------ + +The Video Timing Controller is a general purpose video timing generator and +detector. + +Required properties: + + - compatible: Must be "xlnx,v-tc-6.1". + + - reg: Physical base address and length of the registers set for the device. + + - clocks: Must contain a clock specifier for the VTC core and timing + interfaces clock. + +Optional properties: + + - xlnx,detector: The VTC has a timing detector + - xlnx,generator: The VTC has a timing generator + + At least one of the xlnx,detector and xlnx,generator properties must be + specified. + + +Example: + + vtc: vtc@43c40000 { + compatible = "xlnx,v-tc-6.1"; + reg = <0x43c40000 0x10000>; + + clocks = <&clkc 15>; + xlnx,generator; + }; diff --git a/Documentation/devicetree/bindings/media/xilinx/xlnx,v-tpg.txt b/Documentation/devicetree/bindings/media/xilinx/xlnx,v-tpg.txt new file mode 100644 index 000000000000..9dd86b3db937 --- /dev/null +++ b/Documentation/devicetree/bindings/media/xilinx/xlnx,v-tpg.txt @@ -0,0 +1,71 @@ +Xilinx Video Test Pattern Generator (TPG) +----------------------------------------- + +Required properties: + +- compatible: Must contain at least one of + + "xlnx,v-tpg-5.0" (TPG version 5.0) + "xlnx,v-tpg-6.0" (TPG version 6.0) + + TPG versions backward-compatible with previous versions should list all + compatible versions in the newer to older order. + +- reg: Physical base address and length of the registers set for the device. + +- clocks: Reference to the video core clock. + +- xlnx,video-format, xlnx,video-width: Video format and width, as defined in + video.txt. + +- port: Video port, using the DT bindings defined in ../video-interfaces.txt. + The TPG has a single output port numbered 0. + +Optional properties: + +- xlnx,vtc: A phandle referencing the Video Timing Controller that generates + video timings for the TPG test patterns. + +- timing-gpios: Specifier for a GPIO that controls the timing mux at the TPG + input. The GPIO active level corresponds to the selection of VTC-generated + video timings. + +The xlnx,vtc and timing-gpios properties are mandatory when the TPG is +synthesized with two ports and forbidden when synthesized with one port. + +Example: + + tpg_0: tpg@40050000 { + compatible = "xlnx,v-tpg-6.0", "xlnx,v-tpg-5.0"; + reg = <0x40050000 0x10000>; + clocks = <&clkc 15>; + + xlnx,vtc = <&vtc_3>; + timing-gpios = <&ps7_gpio_0 55 GPIO_ACTIVE_LOW>; + + ports { + #address-cells = <1>; + #size-cells = <0>; + + port@0 { + reg = <0>; + + xlnx,video-format = <XVIP_VF_YUV_422>; + xlnx,video-width = <8>; + + tpg_in: endpoint { + remote-endpoint = <&adv7611_out>; + }; + }; + port@1 { + reg = <1>; + + xlnx,video-format = <XVIP_VF_YUV_422>; + xlnx,video-width = <8>; + + tpg1_out: endpoint { + remote-endpoint = <&switch_in0>; + }; + }: + }; + }; diff --git a/Documentation/devicetree/bindings/media/xilinx/xlnx,video.txt b/Documentation/devicetree/bindings/media/xilinx/xlnx,video.txt new file mode 100644 index 000000000000..5a0227023608 --- /dev/null +++ b/Documentation/devicetree/bindings/media/xilinx/xlnx,video.txt @@ -0,0 +1,55 @@ +Xilinx Video IP Pipeline (VIPP) +------------------------------- + +General concept +--------------- + +Xilinx video IP pipeline processes video streams through one or more Xilinx +video IP cores. Each video IP core is represented as documented in video.txt +and IP core specific documentation, xlnx,v-*.txt, in this directory. The DT +node of the VIPP represents as a top level node of the pipeline and defines +mappings between DMAs and the video IP cores. + +Required properties: + +- compatible: Must be "xlnx,video". + +- dmas, dma-names: List of one DMA specifier and identifier string (as defined + in Documentation/devicetree/bindings/dma/dma.txt) per port. Each port + requires a DMA channel with the identifier string set to "port" followed by + the port index. + +- ports: Video port, using the DT bindings defined in ../video-interfaces.txt. + +Required port properties: + +- direction: should be either "input" or "output" depending on the direction + of stream. + +Example: + + video_cap { + compatible = "xlnx,video"; + dmas = <&vdma_1 1>, <&vdma_3 1>; + dma-names = "port0", "port1"; + + ports { + #address-cells = <1>; + #size-cells = <0>; + + port@0 { + reg = <0>; + direction = "input"; + vcap0_in0: endpoint { + remote-endpoint = <&scaler0_out>; + }; + }; + port@1 { + reg = <1>; + direction = "input"; + vcap0_in1: endpoint { + remote-endpoint = <&switch_out1>; + }; + }; + }; + }; |