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media: dt-bindings: media: Add Aspeed Video Engine binding documentation

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Document the bindings.

Signed-off-by: Eddie James <eajames@linux.ibm.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
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Eddie James 2018-12-11 11:57:00 -05:00 committed by Mauro Carvalho Chehab
parent e159b6074c
commit 95f0455c54
1 changed files with 26 additions and 0 deletions
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Documentation/devicetree/bindings/media/aspeed-video.txt Normal file
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* Device tree bindings for Aspeed Video Engine
The Video Engine (VE) embedded in the Aspeed AST2400 and AST2500 SOCs can
capture and compress video data from digital or analog sources.
Required properties:
- compatible: "aspeed,ast2400-video-engine" or
"aspeed,ast2500-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
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>;
};