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Diffstat (limited to 'Documentation/devicetree/bindings/video/rockchip-vop.txt')
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1 | device-tree bindings for rockchip soc display controller (vop) | ||
2 | |||
3 | VOP (Visual Output Processor) is the Display Controller for the Rockchip | ||
4 | series of SoCs which transfers the image data from a video memory | ||
5 | buffer to an external LCD interface. | ||
6 | |||
7 | Required properties: | ||
8 | - compatible: value should be one of the following | ||
9 | "rockchip,rk3288-vop"; | ||
10 | |||
11 | - interrupts: should contain a list of all VOP IP block interrupts in the | ||
12 | order: VSYNC, LCD_SYSTEM. The interrupt specifier | ||
13 | format depends on the interrupt controller used. | ||
14 | |||
15 | - clocks: must include clock specifiers corresponding to entries in the | ||
16 | clock-names property. | ||
17 | |||
18 | - clock-names: Must contain | ||
19 | aclk_vop: for ddr buffer transfer. | ||
20 | hclk_vop: for ahb bus to R/W the phy regs. | ||
21 | dclk_vop: pixel clock. | ||
22 | |||
23 | - resets: Must contain an entry for each entry in reset-names. | ||
24 | See ../reset/reset.txt for details. | ||
25 | - reset-names: Must include the following entries: | ||
26 | - axi | ||
27 | - ahb | ||
28 | - dclk | ||
29 | |||
30 | - iommus: required a iommu node | ||
31 | |||
32 | - port: A port node with endpoint definitions as defined in | ||
33 | Documentation/devicetree/bindings/media/video-interfaces.txt. | ||
34 | |||
35 | Example: | ||
36 | SoC specific DT entry: | ||
37 | vopb: vopb@ff930000 { | ||
38 | compatible = "rockchip,rk3288-vop"; | ||
39 | reg = <0xff930000 0x19c>; | ||
40 | interrupts = <GIC_SPI 15 IRQ_TYPE_LEVEL_HIGH>; | ||
41 | clocks = <&cru ACLK_VOP0>, <&cru DCLK_VOP0>, <&cru HCLK_VOP0>; | ||
42 | clock-names = "aclk_vop", "dclk_vop", "hclk_vop"; | ||
43 | resets = <&cru SRST_LCDC1_AXI>, <&cru SRST_LCDC1_AHB>, <&cru SRST_LCDC1_DCLK>; | ||
44 | reset-names = "axi", "ahb", "dclk"; | ||
45 | iommus = <&vopb_mmu>; | ||
46 | vopb_out: port { | ||
47 | #address-cells = <1>; | ||
48 | #size-cells = <0>; | ||
49 | vopb_out_edp: endpoint@0 { | ||
50 | reg = <0>; | ||
51 | remote-endpoint=<&edp_in_vopb>; | ||
52 | }; | ||
53 | vopb_out_hdmi: endpoint@1 { | ||
54 | reg = <1>; | ||
55 | remote-endpoint=<&hdmi_in_vopb>; | ||
56 | }; | ||
57 | }; | ||
58 | }; | ||