projects / deliverable / linux.git / blame
| Commit | Line | Data |
|---|---|---|
| 47c71bd6 BD |
1 | Renesas RCar 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 | ||
| bd546882 | 8 | - compatible: Must be one or more of the following |
| 1dff3338 | 9 | - "renesas,vin-r8a7795" for the R8A7795 device |
| 76deaff8 YK |
10 | - "renesas,vin-r8a7794" for the R8A7794 device |
| 11 | - "renesas,vin-r8a7793" for the R8A7793 device | |
| 1d260123 | 12 | - "renesas,vin-r8a7792" for the R8A7792 device |
| 47c71bd6 BD |
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 | |
| bd546882 YK |
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 | ||
| 47c71bd6 BD |
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@0xe6ef0000 { | |
| bd546882 | 48 | compatible = "renesas,vin-r8a7790", "renesas,rcar-gen2-vin"; |
| 47c71bd6 BD |
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 |