FreeBSD/Linux Kernel Cross Reference
sys/contrib/device-tree/Bindings/display/snps,arcpgu.txt

     ARC PGU
     
     This is a display controller found on several development boards produced
     by Synopsys. The ARC PGU is an RGB streamer that reads the data from a
     framebuffer and sends it to a single digital encoder (usually HDMI).
     
     Required properties:
       - compatible: "snps,arcpgu"
       - reg: Physical base address and length of the controller's registers.
      - clocks: A list of phandle + clock-specifier pairs, one for each
        entry in 'clock-names'.
      - clock-names: A list of clock names. For ARC PGU it should contain:
          - "pxlclk" for the clock feeding the output PLL of the controller.
    
    Required sub-nodes:
      - port: The PGU connection to an encoder chip.
    
    Example:
    
    / {
            ...
    
            pgu@XXXXXXXX {
                    compatible = "snps,arcpgu";
                    reg = <0xXXXXXXXX 0x400>;
                    clocks = <&clock_node>;
                    clock-names = "pxlclk";
    
                    port {
                            pgu_output: endpoint {
                                    remote-endpoint = <&hdmi_enc_input>;
                            };
                    };
            };
    };

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