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media: dt-bindings: Document the Rockchip VPU bindings

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Add devicetree binding documentation for Rockchip Video Processing
Unit IP.

Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Ezequiel Garcia <ezequiel@collabora.com>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
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Ezequiel Garcia 2018-10-04 20:12:21 -04:00 committed by Mauro Carvalho Chehab
parent 50e761516f
commit e4183d3256
1 changed files with 29 additions and 0 deletions
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Documentation/devicetree/bindings/media/rockchip-vpu.txt Normal file
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device-tree bindings for rockchip VPU codec
Rockchip (Video Processing Unit) present in various Rockchip platforms,
such as RK3288 and RK3399.
Required properties:
- compatible: value should be one of the following
"rockchip,rk3288-vpu";
"rockchip,rk3399-vpu";
- interrupts: encoding and decoding interrupt specifiers
- interrupt-names: should be "vepu" and "vdpu"
- clocks: phandle to VPU aclk, hclk clocks
- clock-names: should be "aclk" and "hclk"
- power-domains: phandle to power domain node
- iommus: phandle to a iommu node
Example:
SoC-specific DT entry:
vpu: video-codec@ff9a0000 {
compatible = "rockchip,rk3288-vpu";
reg = <0x0 0xff9a0000 0x0 0x800>;
interrupts = <GIC_SPI 9 IRQ_TYPE_LEVEL_HIGH>,
<GIC_SPI 10 IRQ_TYPE_LEVEL_HIGH>;
interrupt-names = "vepu", "vdpu";
clocks = <&cru ACLK_VCODEC>, <&cru HCLK_VCODEC>;
clock-names = "aclk", "hclk";
power-domains = <&power RK3288_PD_VIDEO>;
iommus = <&vpu_mmu>;
};