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>; }; }; }; };