* Renesas R-Car Display Unit (DU) Required Properties: - compatible: must be one of the following. - "renesas,du-r8a7743" for R8A7743 (RZ/G1M) compatible DU - "renesas,du-r8a7745" for R8A7745 (RZ/G1E) compatible DU - "renesas,du-r8a7779" for R8A7779 (R-Car H1) compatible DU - "renesas,du-r8a7790" for R8A7790 (R-Car H2) compatible DU - "renesas,du-r8a7791" for R8A7791 (R-Car M2-W) compatible DU - "renesas,du-r8a7792" for R8A7792 (R-Car V2H) compatible DU - "renesas,du-r8a7793" for R8A7793 (R-Car M2-N) compatible DU - "renesas,du-r8a7794" for R8A7794 (R-Car E2) compatible DU - "renesas,du-r8a7795" for R8A7795 (R-Car H3) compatible DU - "renesas,du-r8a7796" for R8A7796 (R-Car M3-W) compatible DU - "renesas,du-r8a77965" for R8A77965 (R-Car M3-N) compatible DU - "renesas,du-r8a77970" for R8A77970 (R-Car V3M) compatible DU - "renesas,du-r8a77995" for R8A77995 (R-Car D3) compatible DU - reg: the memory-mapped I/O registers base address and length - interrupt-parent: phandle of the parent interrupt controller. - interrupts: Interrupt specifiers for the DU interrupts. - clocks: A list of phandles + clock-specifier pairs, one for each entry in the clock-names property. - clock-names: Name of the clocks. This property is model-dependent. - R8A7779 uses a single functional clock. The clock doesn't need to be named. - All other DU instances use one functional clock per channel The functional clocks must be named "du.x" with "x" being the channel numerical index. - In addition to the functional clocks, all DU versions also support externally supplied pixel clocks. Those clocks are optional. When supplied they must be named "dclkin.x" with "x" being the input clock numerical index. - vsps: A list of phandle and channel index tuples to the VSPs that handle the memory interfaces for the DU channels. The phandle identifies the VSP instance that serves the DU channel, and the channel index identifies the LIF instance in that VSP. Required nodes: The connections to the DU output video ports are modeled using the OF graph bindings specified in Documentation/devicetree/bindings/graph.txt. The following table lists for each supported model the port number corresponding to each DU output. Port0 Port1 Port2 Port3 ----------------------------------------------------------------------------- R8A7743 (RZ/G1M) DPAD 0 LVDS 0 - - R8A7745 (RZ/G1E) DPAD 0 DPAD 1 - - R8A7779 (R-Car H1) DPAD 0 DPAD 1 - - R8A7790 (R-Car H2) DPAD 0 LVDS 0 LVDS 1 - R8A7791 (R-Car M2-W) DPAD 0 LVDS 0 - - R8A7792 (R-Car V2H) DPAD 0 DPAD 1 - - R8A7793 (R-Car M2-N) DPAD 0 LVDS 0 - - R8A7794 (R-Car E2) DPAD 0 DPAD 1 - - R8A7795 (R-Car H3) DPAD 0 HDMI 0 HDMI 1 LVDS 0 R8A7796 (R-Car M3-W) DPAD 0 HDMI 0 LVDS 0 - R8A77965 (R-Car M3-N) DPAD 0 HDMI 0 LVDS 0 - R8A77970 (R-Car V3M) DPAD 0 LVDS 0 - - R8A77995 (R-Car D3) DPAD 0 LVDS 0 LVDS 1 - Example: R8A7795 (R-Car H3) ES2.0 DU du: display@feb00000 { compatible = "renesas,du-r8a7795"; reg = <0 0xfeb00000 0 0x80000>; interrupts = , , , ; clocks = <&cpg CPG_MOD 724>, <&cpg CPG_MOD 723>, <&cpg CPG_MOD 722>, <&cpg CPG_MOD 721>; clock-names = "du.0", "du.1", "du.2", "du.3"; vsps = <&vspd0 0>, <&vspd1 0>, <&vspd2 0>, <&vspd0 1>; ports { #address-cells = <1>; #size-cells = <0>; port@0 { reg = <0>; du_out_rgb: endpoint { }; }; port@1 { reg = <1>; du_out_hdmi0: endpoint { remote-endpoint = <&dw_hdmi0_in>; }; }; port@2 { reg = <2>; du_out_hdmi1: endpoint { remote-endpoint = <&dw_hdmi1_in>; }; }; port@3 { reg = <3>; du_out_lvds0: endpoint { }; }; }; };