FreeBSD/Linux Kernel Cross Reference
sys/contrib/device-tree/Bindings/misc/ifm-csi.txt

     IFM camera sensor interface on mpc5200 LocalPlus bus
     
     Required properties:
     - compatible: "ifm,o2d-csi"
     - reg: specifies sensor chip select number and associated address range
     - interrupts: external interrupt line number and interrupt sense mode
       of the interrupt line signaling frame valid events
     - gpios: three gpio-specifiers for "capture", "reset" and "master enable"
       GPIOs (strictly in this order).
    - ifm,csi-clk-handle: the phandle to a node in the DT describing the sensor
      clock generator. This node is usually a general purpose timer controller.
    - ifm,csi-addr-bus-width: address bus width (valid values are 16, 24, 25)
    - ifm,csi-data-bus-width: data bus width (valid values are 8 and 16)
    - ifm,csi-wait-cycles: sensor bus wait cycles
    
    Optional properties:
    - ifm,csi-byte-swap: if this property is present, the byte swapping on
      the bus will be enabled.
    
    Example:
    
            csi@3,0 {
                    compatible = "ifm,o2d-csi";
                    reg = <3 0 0x00100000>;         /* CS 3, 1 MiB range */
                    interrupts = <1 1 2>;           /* IRQ1, edge falling */
    
                    ifm,csi-clk-handle = <&timer7>;
                    gpios = <&gpio_simple 23 0      /* image_capture */
                             &gpio_simple 26 0      /* image_reset */
                             &gpio_simple 29 0>;    /* image_master_en */
    
                    ifm,csi-addr-bus-width = <24>;
                    ifm,csi-data-bus-width = <8>;
                    ifm,csi-wait-cycles = <0>;
            };
    
    The base address of the used chip select is specified in the
    ranges property of the parent localbus node, for example:
    
            ranges = <0 0 0xff000000 0x01000000
                      3 0 0xe3000000 0x00100000>;

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