FreeBSD/Linux Kernel Cross Reference
sys/contrib/device-tree/Bindings/display/imx/fsl-imx-drm.txt

     Freescale i.MX DRM master device
     ================================
     
     The freescale i.MX DRM master device is a virtual device needed to list all
     IPU or other display interface nodes that comprise the graphics subsystem.
     
     Required properties:
     - compatible: Should be "fsl,imx-display-subsystem"
     - ports: Should contain a list of phandles pointing to display interface ports
      of IPU devices
    
    example:
    
    display-subsystem {
            compatible = "fsl,imx-display-subsystem";
            ports = <&ipu_di0>;
    };
    
    
    Freescale i.MX IPUv3
    ====================
    
    Required properties:
    - compatible: Should be "fsl,<chip>-ipu" where <chip> is one of
      - imx51
      - imx53
      - imx6q
      - imx6qp
    - reg: should be register base and length as documented in the
      datasheet
    - interrupts: Should contain sync interrupt and error interrupt,
      in this order.
    - resets: phandle pointing to the system reset controller and
              reset line index, see reset/fsl,imx-src.txt for details
    Additional required properties for fsl,imx6qp-ipu:
    - fsl,prg: phandle to prg node associated with this IPU instance
    Optional properties:
    - port@[0-3]: Port nodes with endpoint definitions as defined in
      Documentation/devicetree/bindings/media/video-interfaces.txt.
      Ports 0 and 1 should correspond to CSI0 and CSI1,
      ports 2 and 3 should correspond to DI0 and DI1, respectively.
    
    example:
    
    ipu: ipu@18000000 {
            #address-cells = <1>;
            #size-cells = <0>;
            compatible = "fsl,imx53-ipu";
            reg = <0x18000000 0x080000000>;
            interrupts = <11 10>;
            resets = <&src 2>;
    
            ipu_di0: port@2 {
                    reg = <2>;
    
                    ipu_di0_disp0: endpoint {
                            remote-endpoint = <&display_in>;
                    };
            };
    };
    
    Freescale i.MX PRE (Prefetch Resolve Engine)
    ============================================
    
    Required properties:
    - compatible: should be "fsl,imx6qp-pre"
    - reg: should be register base and length as documented in the
      datasheet
    - clocks : phandle to the PRE axi clock input, as described
      in Documentation/devicetree/bindings/clock/clock-bindings.txt and
      Documentation/devicetree/bindings/clock/imx6q-clock.yaml.
    - clock-names: should be "axi"
    - interrupts: should contain the PRE interrupt
    - fsl,iram: phandle pointing to the mmio-sram device node, that should be
      used for the PRE SRAM double buffer.
    
    example:
    
    pre@21c8000 {
            compatible = "fsl,imx6qp-pre";
            reg = <0x021c8000 0x1000>;
            interrupts = <GIC_SPI 90 IRQ_TYPE_EDGE_RISING>;
            clocks = <&clks IMX6QDL_CLK_PRE0>;
            clock-names = "axi";
            fsl,iram = <&ocram2>;
    };
    
    Freescale i.MX PRG (Prefetch Resolve Gasket)
    ============================================
    
    Required properties:
    - compatible: should be "fsl,imx6qp-prg"
    - reg: should be register base and length as documented in the
      datasheet
    - clocks : phandles to the PRG ipg and axi clock inputs, as described
      in Documentation/devicetree/bindings/clock/clock-bindings.txt and
      Documentation/devicetree/bindings/clock/imx6q-clock.yaml.
    - clock-names: should be "ipg" and "axi"
    - fsl,pres: phandles to the PRE units attached to this PRG, with the fixed
     PRE as the first entry and the muxable PREs following.
   
   example:
   
   prg@21cc000 {
           compatible = "fsl,imx6qp-prg";
           reg = <0x021cc000 0x1000>;
           clocks = <&clks IMX6QDL_CLK_PRG0_APB>,
                    <&clks IMX6QDL_CLK_PRG0_AXI>;
           clock-names = "ipg", "axi";
           fsl,pres = <&pre1>, <&pre2>, <&pre3>;
   };
   
   Parallel display support
   ========================
   
   Required properties:
   - compatible: Should be "fsl,imx-parallel-display"
   Optional properties:
   - interface-pix-fmt: How this display is connected to the
     display interface. Currently supported types: "rgb24", "rgb565", "bgr666"
     and "lvds666".
   - edid: verbatim EDID data block describing attached display.
   - ddc: phandle describing the i2c bus handling the display data
     channel
   - port@[0-1]: Port nodes with endpoint definitions as defined in
     Documentation/devicetree/bindings/media/video-interfaces.txt.
     Port 0 is the input port connected to the IPU display interface,
     port 1 is the output port connected to a panel.
   
   example:
   
   disp0 {
           compatible = "fsl,imx-parallel-display";
           edid = [edid-data];
           interface-pix-fmt = "rgb24";
   
           port@0 {
                   reg = <0>;
   
                   display_in: endpoint {
                           remote-endpoint = <&ipu_di0_disp0>;
                   };
           };
   
           port@1 {
                   reg = <1>;
   
                   display_out: endpoint {
                           remote-endpoint = <&panel_in>;
                   };
           };
   };
   
   panel {
           ...
   
           port {
                   panel_in: endpoint {
                           remote-endpoint = <&display_out>;
                   };
           };
   };

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