linux-zen-desktop/Documentation/devicetree/bindings/media/aspeed-video.txt

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2023-08-30 17:31:07 +02:00
* Device tree bindings for Aspeed Video Engine
The Video Engine (VE) embedded in the Aspeed AST2400/2500/2600 SOCs can
capture and compress video data from digital or analog sources.
Required properties:
- compatible: "aspeed,ast2400-video-engine" or
"aspeed,ast2500-video-engine" or
"aspeed,ast2600-video-engine"
- reg: contains the offset and length of the VE memory region
- clocks: clock specifiers for the syscon clocks associated with
the VE (ordering must match the clock-names property)
- clock-names: "vclk" and "eclk"
- resets: reset specifier for the syscon reset associated with
the VE
- interrupts: the interrupt associated with the VE on this platform
Optional properties:
- memory-region:
phandle to a memory region to allocate from, as defined in
Documentation/devicetree/bindings/reserved-memory/reserved-memory.txt
Example:
video-engine@1e700000 {
compatible = "aspeed,ast2500-video-engine";
reg = <0x1e700000 0x20000>;
clocks = <&syscon ASPEED_CLK_GATE_VCLK>, <&syscon ASPEED_CLK_GATE_ECLK>;
clock-names = "vclk", "eclk";
resets = <&syscon ASPEED_RESET_VIDEO>;
interrupts = <7>;
memory-region = <&video_engine_memory>;
};