Documentation/devicetree/bindings/display/rockchip/rockchip-vop.txt

   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                 "rockchip,rk3036-vop";
  11
  12 - interrupts: should contain a list of all VOP IP block interrupts in the
  13                  order: VSYNC, LCD_SYSTEM. The interrupt specifier
  14                  format depends on the interrupt controller used.
  15
  16 - clocks: must include clock specifiers corresponding to entries in the
  17                 clock-names property.
  18
  19 - clock-names: Must contain
  20                 aclk_vop: for ddr buffer transfer.
  21                 hclk_vop: for ahb bus to R/W the phy regs.
  22                 dclk_vop: pixel clock.
  23
  24 - resets: Must contain an entry for each entry in reset-names.
  25   See ../reset/reset.txt for details.
  26 - reset-names: Must include the following entries:
  27   - axi
  28   - ahb
  29   - dclk
  30
  31 - iommus: required a iommu node
  32
  33 - port: A port node with endpoint definitions as defined in
  34   Documentation/devicetree/bindings/media/video-interfaces.txt.
  35
  36 Example:
  37 SoC specific DT entry:
  38         vopb: vopb@ff930000 {
  39                 compatible = "rockchip,rk3288-vop";
  40                 reg = <0xff930000 0x19c>;
  41                 interrupts = <GIC_SPI 15 IRQ_TYPE_LEVEL_HIGH>;
  42                 clocks = <&cru ACLK_VOP0>, <&cru DCLK_VOP0>, <&cru HCLK_VOP0>;
  43                 clock-names = "aclk_vop", "dclk_vop", "hclk_vop";
  44                 resets = <&cru SRST_LCDC1_AXI>, <&cru SRST_LCDC1_AHB>, <&cru SRST_LCDC1_DCLK>;
  45                 reset-names = "axi", "ahb", "dclk";
  46                 iommus = <&vopb_mmu>;
  47                 vopb_out: port {
  48                         #address-cells = <1>;
  49                         #size-cells = <0>;
  50                         vopb_out_edp: endpoint@0 {
  51                                 reg = <0>;
  52                                 remote-endpoint=<&edp_in_vopb>;
  53                         };
  54                         vopb_out_hdmi: endpoint@1 {
  55                                 reg = <1>;
  56                                 remote-endpoint=<&hdmi_in_vopb>;
  57                         };
  58                 };
  59         };