Based on kernel version 4.16.1. Page generated on 2018-04-09 11:52 EST.
1 Renesas R-Car Video Input driver (rcar_vin) 2 ------------------------------------------- 3 4 The rcar_vin device provides video input capabilities for the Renesas R-Car 5 family of devices. The current blocks are always slaves and suppot one input 6 channel which can be either RGB, YUYV or BT656. 7 8 - compatible: Must be one or more of the following 9 - "renesas,vin-r8a7795" for the R8A7795 device 10 - "renesas,vin-r8a7794" for the R8A7794 device 11 - "renesas,vin-r8a7793" for the R8A7793 device 12 - "renesas,vin-r8a7792" for the R8A7792 device 13 - "renesas,vin-r8a7791" for the R8A7791 device 14 - "renesas,vin-r8a7790" for the R8A7790 device 15 - "renesas,vin-r8a7779" for the R8A7779 device 16 - "renesas,vin-r8a7778" for the R8A7778 device 17 - "renesas,rcar-gen2-vin" for a generic R-Car Gen2 compatible device. 18 - "renesas,rcar-gen3-vin" for a generic R-Car Gen3 compatible device. 19 20 When compatible with the generic version nodes must list the 21 SoC-specific version corresponding to the platform first 22 followed by the generic version. 23 24 - reg: the register base and size for the device registers 25 - interrupts: the interrupt for the device 26 - clocks: Reference to the parent clock 27 28 Additionally, an alias named vinX will need to be created to specify 29 which video input device this is. 30 31 The per-board settings: 32 - port sub-node describing a single endpoint connected to the vin 33 as described in video-interfaces.txt[1]. Only the first one will 34 be considered as each vin interface has one input port. 35 36 These settings are used to work out video input format and widths 37 into the system. 38 39 40 Device node example 41 ------------------- 42 43 aliases { 44 vin0 = &vin0; 45 }; 46 47 vin0: vin@e6ef0000 { 48 compatible = "renesas,vin-r8a7790", "renesas,rcar-gen2-vin"; 49 clocks = <&mstp8_clks R8A7790_CLK_VIN0>; 50 reg = <0 0xe6ef0000 0 0x1000>; 51 interrupts = <0 188 IRQ_TYPE_LEVEL_HIGH>; 52 status = "disabled"; 53 }; 54 55 Board setup example (vin1 composite video input) 56 ------------------------------------------------ 57 58 &i2c2 { 59 status = "ok"; 60 pinctrl-0 = <&i2c2_pins>; 61 pinctrl-names = "default"; 62 63 adv7180@20 { 64 compatible = "adi,adv7180"; 65 reg = <0x20>; 66 remote = <&vin1>; 67 68 port { 69 adv7180: endpoint { 70 bus-width = <8>; 71 remote-endpoint = <&vin1ep0>; 72 }; 73 }; 74 }; 75 }; 76 77 /* composite video input */ 78 &vin1 { 79 pinctrl-0 = <&vin1_pins>; 80 pinctrl-names = "default"; 81 82 status = "ok"; 83 84 port { 85 #address-cells = <1>; 86 #size-cells = <0>; 87 88 vin1ep0: endpoint { 89 remote-endpoint = <&adv7180>; 90 bus-width = <8>; 91 }; 92 }; 93 }; 94 95 96 97 [1] video-interfaces.txt common video media interface