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Diffstat (limited to 'Documentation/devicetree/bindings/media/rcar_vin.txt')
-rw-r--r-- | Documentation/devicetree/bindings/media/rcar_vin.txt | 86 |
1 files changed, 86 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/media/rcar_vin.txt b/Documentation/devicetree/bindings/media/rcar_vin.txt new file mode 100644 index 000000000000..ba61782c2af9 --- /dev/null +++ b/Documentation/devicetree/bindings/media/rcar_vin.txt @@ -0,0 +1,86 @@ +Renesas RCar Video Input driver (rcar_vin) +------------------------------------------ + +The rcar_vin device provides video input capabilities for the Renesas R-Car +family of devices. The current blocks are always slaves and suppot one input +channel which can be either RGB, YUYV or BT656. + + - compatible: Must be one of the following + - "renesas,vin-r8a7791" for the R8A7791 device + - "renesas,vin-r8a7790" for the R8A7790 device + - "renesas,vin-r8a7779" for the R8A7779 device + - "renesas,vin-r8a7778" for the R8A7778 device + - reg: the register base and size for the device registers + - interrupts: the interrupt for the device + - clocks: Reference to the parent clock + +Additionally, an alias named vinX will need to be created to specify +which video input device this is. + +The per-board settings: + - 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. + + These settings are used to work out video input format and widths + into the system. + + +Device node example +------------------- + + aliases { + vin0 = &vin0; + }; + + vin0: vin@0xe6ef0000 { + compatible = "renesas,vin-r8a7790"; + clocks = <&mstp8_clks R8A7790_CLK_VIN0>; + reg = <0 0xe6ef0000 0 0x1000>; + interrupts = <0 188 IRQ_TYPE_LEVEL_HIGH>; + status = "disabled"; + }; + +Board setup example (vin1 composite video input) +------------------------------------------------ + +&i2c2 { + status = "ok"; + pinctrl-0 = <&i2c2_pins>; + pinctrl-names = "default"; + + adv7180@20 { + compatible = "adi,adv7180"; + reg = <0x20>; + remote = <&vin1>; + + port { + adv7180: endpoint { + bus-width = <8>; + remote-endpoint = <&vin1ep0>; + }; + }; + }; +}; + +/* composite video input */ +&vin1 { + pinctrl-0 = <&vin1_pins>; + pinctrl-names = "default"; + + status = "ok"; + + port { + #address-cells = <1>; + #size-cells = <0>; + + vin1ep0: endpoint { + remote-endpoint = <&adv7180>; + bus-width = <8>; + }; + }; +}; + + + +[1] video-interfaces.txt common video media interface |