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    Subject[PATCH v2 2/3] dt-bindings: media: Add Allwinner V3s Camera Sensor Interface (CSI)
    Date
    Add binding documentation for Allwinner V3s CSI.

    Signed-off-by: Yong Deng <yong.deng@magewell.com>
    ---
    .../devicetree/bindings/media/sun6i-csi.txt | 49 ++++++++++++++++++++++
    1 file changed, 49 insertions(+)
    create mode 100644 Documentation/devicetree/bindings/media/sun6i-csi.txt

    diff --git a/Documentation/devicetree/bindings/media/sun6i-csi.txt b/Documentation/devicetree/bindings/media/sun6i-csi.txt
    new file mode 100644
    index 0000000..f8d83f6
    --- /dev/null
    +++ b/Documentation/devicetree/bindings/media/sun6i-csi.txt
    @@ -0,0 +1,49 @@
    +Allwinner V3s Camera Sensor Interface
    +------------------------------
    +
    +Required properties:
    + - compatible: value must be "allwinner,sun8i-v3s-csi"
    + - reg: base address and size of the memory-mapped region.
    + - interrupts: interrupt associated to this IP
    + - clocks: phandles to the clocks feeding the CSI
    + * ahb: the CSI interface clock
    + * mod: the CSI module clock
    + * ram: the CSI DRAM clock
    + - clock-names: the clock names mentioned above
    + - resets: phandles to the reset line driving the CSI
    +
    +- ports: A ports node with endpoint definitions as defined in
    + Documentation/devicetree/bindings/media/video-interfaces.txt.
    +
    +Example:
    +
    + csi1: csi@01cb4000 {
    + compatible = "allwinner,sun8i-v3s-csi";
    + reg = <0x01cb4000 0x1000>;
    + interrupts = <GIC_SPI 84 IRQ_TYPE_LEVEL_HIGH>;
    + clocks = <&ccu CLK_BUS_CSI>,
    + <&ccu CLK_CSI1_SCLK>,
    + <&ccu CLK_DRAM_CSI>;
    + clock-names = "ahb", "mod", "ram";
    + resets = <&ccu RST_BUS_CSI>;
    +
    + port {
    + #address-cells = <1>;
    + #size-cells = <0>;
    +
    + /* Parallel bus endpoint */
    + csi1_ep: endpoint {
    + remote-endpoint = <&adv7611_ep>;
    + bus-width = <16>;
    + data-shift = <0>;
    +
    + /* If hsync-active/vsync-active are missing,
    + embedded BT.656 sync is used */
    + hsync-active = <0>; /* Active low */
    + vsync-active = <0>; /* Active low */
    + data-active = <1>; /* Active high */
    + pclk-sample = <1>; /* Rising */
    + };
    + };
    + };
    +
    --
    1.8.3.1
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