66 lines
1.9 KiB
Plaintext
66 lines
1.9 KiB
Plaintext
|
device-tree bindings for rockchip soc display controller (vop)
|
||
|
|
|
||
|
|
VOP (Visual Output Processor) is the Display Controller for the Rockchip
|
||
|
|
series of SoCs which transfers the image data from a video memory
|
||
|
|
buffer to an external LCD interface.
|
||
|
|
|
||
|
|
Required properties:
|
||
|
|
- compatible: value should be one of the following
|
||
|
|
"rockchip,rk3036-vop";
|
||
|
|
"rockchip,rk3288-vop";
|
||
|
|
"rockchip,rk3368-vop";
|
||
|
|
"rockchip,rk3366-vop";
|
||
|
|
"rockchip,rk3399-vop-big";
|
||
|
|
"rockchip,rk3399-vop-lit";
|
||
|
|
"rockchip,rk3228-vop";
|
||
|
|
"rockchip,rk3328-vop";
|
||
|
|
|
||
|
|
- interrupts: should contain a list of all VOP IP block interrupts in the
|
||
|
|
order: VSYNC, LCD_SYSTEM. The interrupt specifier
|
||
|
|
format depends on the interrupt controller used.
|
||
|
|
|
||
|
|
- clocks: must include clock specifiers corresponding to entries in the
|
||
|
|
clock-names property.
|
||
|
|
|
||
|
|
- clock-names: Must contain
|
||
|
|
aclk_vop: for ddr buffer transfer.
|
||
|
|
hclk_vop: for ahb bus to R/W the phy regs.
|
||
|
|
dclk_vop: pixel clock.
|
||
|
|
|
||
|
|
- resets: Must contain an entry for each entry in reset-names.
|
||
|
|
See ../reset/reset.txt for details.
|
||
|
|
- reset-names: Must include the following entries:
|
||
|
|
- axi
|
||
|
|
- ahb
|
||
|
|
- dclk
|
||
|
|
|
||
|
|
- iommus: required a iommu node
|
||
|
|
|
||
|
|
- port: A port node with endpoint definitions as defined in
|
||
|
|
Documentation/devicetree/bindings/media/video-interfaces.txt.
|
||
|
|
|
||
|
|
Example:
|
||
|
|
SoC specific DT entry:
|
||
|
|
vopb: vopb@ff930000 {
|
||
|
|
compatible = "rockchip,rk3288-vop";
|
||
|
|
reg = <0xff930000 0x19c>;
|
||
|
|
interrupts = <GIC_SPI 15 IRQ_TYPE_LEVEL_HIGH>;
|
||
|
|
clocks = <&cru ACLK_VOP0>, <&cru DCLK_VOP0>, <&cru HCLK_VOP0>;
|
||
|
|
clock-names = "aclk_vop", "dclk_vop", "hclk_vop";
|
||
|
|
resets = <&cru SRST_LCDC1_AXI>, <&cru SRST_LCDC1_AHB>, <&cru SRST_LCDC1_DCLK>;
|
||
|
|
reset-names = "axi", "ahb", "dclk";
|
||
|
|
iommus = <&vopb_mmu>;
|
||
|
|
vopb_out: port {
|
||
|
|
#address-cells = <1>;
|
||
|
|
#size-cells = <0>;
|
||
|
|
vopb_out_edp: endpoint@0 {
|
||
|
|
reg = <0>;
|
||
|
|
remote-endpoint=<&edp_in_vopb>;
|
||
|
|
};
|
||
|
|
vopb_out_hdmi: endpoint@1 {
|
||
|
|
reg = <1>;
|
||
|
|
remote-endpoint=<&hdmi_in_vopb>;
|
||
|
|
};
|
||
|
|
};
|
||
|
|
};
|