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