1Xilinx Video Test Pattern Generator (TPG) 2----------------------------------------- 3 4Required properties: 5 6- compatible: Must contain at least one of 7 8 "xlnx,v-tpg-5.0" (TPG version 5.0) 9 "xlnx,v-tpg-6.0" (TPG version 6.0) 10 11 TPG versions backward-compatible with previous versions should list all 12 compatible versions in the newer to older order. 13 14- reg: Physical base address and length of the registers set for the device. 15 16- clocks: Reference to the video core clock. 17 18- xlnx,video-format, xlnx,video-width: Video format and width, as defined in 19 video.txt. 20 21- port: Video port, using the DT bindings defined in ../video-interfaces.txt. 22 The TPG has a single output port numbered 0. 23 24Optional properties: 25 26- xlnx,vtc: A phandle referencing the Video Timing Controller that generates 27 video timings for the TPG test patterns. 28 29- timing-gpios: Specifier for a GPIO that controls the timing mux at the TPG 30 input. The GPIO active level corresponds to the selection of VTC-generated 31 video timings. 32 33The xlnx,vtc and timing-gpios properties are mandatory when the TPG is 34synthesized with two ports and forbidden when synthesized with one port. 35 36Example: 37 38 tpg_0: tpg@40050000 { 39 compatible = "xlnx,v-tpg-6.0", "xlnx,v-tpg-5.0"; 40 reg = <0x40050000 0x10000>; 41 clocks = <&clkc 15>; 42 43 xlnx,vtc = <&vtc_3>; 44 timing-gpios = <&ps7_gpio_0 55 GPIO_ACTIVE_LOW>; 45 46 ports { 47 #address-cells = <1>; 48 #size-cells = <0>; 49 50 port@0 { 51 reg = <0>; 52 53 xlnx,video-format = <XVIP_VF_YUV_422>; 54 xlnx,video-width = <8>; 55 56 tpg_in: endpoint { 57 remote-endpoint = <&adv7611_out>; 58 }; 59 }; 60 port@1 { 61 reg = <1>; 62 63 xlnx,video-format = <XVIP_VF_YUV_422>; 64 xlnx,video-width = <8>; 65 66 tpg1_out: endpoint { 67 remote-endpoint = <&switch_in0>; 68 }; 69 }; 70 }; 71 }; 72